Lorry-mounted crane

FIELD: transport.

SUBSTANCE: lorry-mounted crane contains boom, rotating unit, outriggers with jacks, each jack made as hydraulic cylinder containing rod with piston and one of outriggers with jacks with jacks having longer piston stroke than other outriggers with jacks.

EFFECT: increase of crane performance efficiency on inclined work sites.

18 dwg

 

THE TECHNICAL FIELD TO WHICH THE INVENTION RELATES.

The invention relates to the field of engineering, namely, lifting and transport machinery, and can be applied in the design, manufacture and use of mobile cranes, loader cranes, various lifts for high-rise operations.

The LEVEL of TECHNOLOGY

Along with the chassis, a rotary device and boom toggling device with outriggers is one of the main elements of the crane. By located on the non-device outriggers increase the support base of the crane in its working position, provide him a job working on sloping sites. Support contour passes through the supporting elements supports posting and, as a rule, the plan represents a polygon.

One of the important problems of a truck crane is that it cannot work on large gradients of a working platform or a significant decrease in capacity of the crane when working on large inclines. As a rule, at the present time for the safe operation of the crane requires a considerable amount of time and earthworks for alignment of the working area under the crane. Particularly acute problem when working near the pits, when the contradiction between them come two problems: a problem - as far as possible from the edge on the bosom of the pit to position the crane, for example, for lifting from the bottom or lowered to the bottom of the pit of the goods and the problem of reducing the capacity of the crane, if it is located on the slope of the pit with a large slope.

The claimed invention is directed to resolving these contradictions.

Analogue of the invention is a truck crane, described in the patent US 6138845 with a publication date 31.10.2000 year. The crane includes a boom, a rotary device, rotary device, four outriggers with legs hanging of the crane. As supports the hanging of the crane used hydraulic cylinders. All cylinders hanging is made identical with the same dimensions.

With the essential features of the claimed invention match the following characteristics of analogue: truck crane, containing the arrow, the rotary device, rotary device, the outriggers with legs hanging of the crane, and each bearing hanging of the crane is made in the form of a hydraulic cylinder.

Disadvantages similar to the following:

i. Small allowable slope of a working platform.

ii. Small capacity while working on large inclines work site, in particular, on the edge of the pit when lowering or lifting from the bottom of the pit.

iii. Small angle of inclination of the crane in the direction opposite to the working area of the crane.

Other analogs of the invention can be car KRA is, described in the patent US 6341705 with a publication date 29.01.2002 year, truck crane, described in the patent US 6186347 with a publication date 13.02.2001 year, truck crane, described in patent RU 2162436 with a publication date 27.01.2001 year, as well as truck crane, described in the source hares L.V., masroor PPM mobile cranes: a Textbook for environments. Pro-TEC. Uch-Sch. - 2nd ed., revised and enlarged extra - M.: Higher. school, 1978, 327 C., Il. on str-225.

Each of these analogs also contains an arrow, rotary device, rotary device, the outriggers with legs hanging of the crane, and each bearing hanging of the crane is made in the form of a hydraulic cylinder. All cylinders mounted on the stabilizers, are made identical with the same geometrical parameters. In the latter source also described automobile cranes, which as supports posting have screws hanging.

With the essential features of the claimed invention match the following characteristics analogues: truck crane, containing the arrow, the rotary device, rotary device, the outriggers with legs hanging of the crane, and each bearing hanging of the crane is made in the form of a hydraulic cylinder.

The drawbacks are the same as specified for the first version.

The prototype of the invention is a truck crane, described in the source /Valve Strelow is self-propelled on a special wheeled chassis. KS-59711. The user guide. KS-59711.00.000 re. 2003/.

Truck crane includes a boom, a rotary device, rotary device, which is wheeled chassis BAZ-8026. On toggling the device is installed bearing swivel, designed to connect the non-device tap with swivel device. On toggling the device are outriggers with legs hanging of the crane. Each of the outriggers is a welded beam box-section, mounted and moving in the transverse beam of the chassis frame by means of a hydraulic cylinder. Each bearing hanging of the crane is made in the form of a cylinder which contains the piston. The piston diameter 125 mm, stem diameter 100 mm, stroke 600 mm

With the essential features of the claimed invention matches the following set of features of the prototype: truck crane, containing the arrow, the rotary device, rotary device, the outriggers with legs hanging of the crane, and each bearing hanging of the crane is made in the form of a hydraulic cylinder and contains the piston.

The disadvantages of the prototype, prevent obtaining technical results that are provided by the claimed invention, the following:

i. Small allowable slope of a working platform for truck crane, do not affect the possibility of g is hrizotilovaya crane. The crane prototype allowable slope of a working platform shall not be more than 3° in the longitudinal direction and 2.6° in the transverse direction. When data sloping working area outriggers provide leveling of crane. When the slope site more than 3° in the longitudinal direction of the outriggers do not provide a leveling valve. In this case, toggling the device of the crane when the work is at an angle to the local horizon. The research conducted in relation to the crane of the prototype showed that with increasing slope site with 3° to 5° industry working crane lifting capacity of the crane to the boom, equal to 18 m, is reduced by 5%, and with increasing slope site with 3° to 10° the capacity of the crane to the boom, equal to 18 m, is reduced by 23%.

With the decrease of the boom the impact of the slope of the site grows. Thus, the increase of the slope of a working platform with 3° to 5° the capacity of the crane to the boom, equal to 6 m, is reduced by 8%, and with increasing slope site with 3° to 10° the capacity of the crane to the boom, equal to 6 m, is reduced by 47%.

The capacity can be increased due to the decrease of the center of mass of the crane, lower the location of the counterweight, however, this would require changes to the layout of the crane, long time and aninah costs.

ii. The small capacity of the crane while working on large inclines work site, in particular, on the edge of the pit when lowering or lifting from the bottom of the pit. As mentioned above, with the increase of the slope of a working platform load capacity of the crane is reduced.

You can increase capacity, firstly, due to the leveling - leveling of the surface of the working platform, secondly, by establishing a tap away from the edge of the pit on a flat horizontal surface. In the first case can require considerable effort and time spent on leveling the ground, in the second case, the capacity of the crane is reduced due to the increase of the boom, and thus can significantly increase the time it works. For crane prototype when lowering and lifting of the pit load on the boom 12 is 3.05 m t, and the radius 18 m capacity is already 1.4 T. Thus, the farther from the pit mounted faucet, the less its capacity.

iii. Small angle of inclination of the crane in the direction opposite to the working area of the crane. It is known that the capacity of the crane is reduced when it is tilted in the direction of the sector and the capacity of the crane is increased when it is tilted in the opposite sector. For crane prototype the maximum angle which can be created due to the difference between the strokes of the pistons of the cylinders hanging, is 3°. Studies have shown that with such an angle of inclination of the crane lifting capacity can be increased, but not more than 5-8%. If the difference of the pistons of the cylinders hanging was greater, and the capacity could be more.

iiii. Shallow depth push the pillar hanging crane anchors or piles into the ground. Research conducted in the Institute of jib cranes, showed that units with outriggers and hanging on them, can be used to perform operations push the anchors and piles into the ground. Operation push the thrust bearing cylinder marking is located on the top of the anchor or pile. The crane boom is oriented above the thrust bearing. Then above the surface of the working platform is lifted a weight from 25 to 100% of the maximum possible. Big load from a raised cargo is distributed on a thrust bearing located on the anchor or pile. Under the action of load (weight of crane weight crane lifted cargo) anchor or pile zadumivaetsa in the ground. The greater the stroke of the hydraulic cylinder hanging or its progress is displayed, the deeper from the surface of the earth can be crushed anchor or pile. The prototype of the progress of the posting of the piston is 27 cm, then at a depth of 27 cm from the surface of the earth can be crushed anchor or pile, th is is a negligible value.

DISCLOSURE of INVENTIONS

Claimed in the invention a truck crane is designed to perform a number of operations: travel and work site, work on the job site, including on-site work with large gradients, the seizure of the goods, his ascent to the destination, lowering and o uncoupling of cargo lifting and moving the load-handling devices, and other operations.

The problem solved by the invention is to increase the efficiency of the crane working on sloping sites, for example, at the edge of pits, trenches, on the slopes of the embankments. The problem is solved due to the fact that according to the invention of the automobile crane includes a boom, a rotary device, rotary device, the outriggers with legs hanging of the crane, each bearing the hanging of the crane is made in the form of a hydraulic cylinder and contains the piston, and one of the pillars of the hanging of the crane stroke more strokes of the pistons of the other pillars of the hanging of the crane. This set of features provides the receipt of all the following technical results. The features of the invention, the distinctive features of the prototype, the following: one of the pillars of the hanging of the crane stroke more strokes of the pistons of the other pillars of the hanging of the crane.

The diameter of the rod above the cylinder may be greater than the diam is TRS rods of other cylinders in the 1.15-3.5 times. The piston rod diameter is increased to improve the strength characteristics of the hydraulic cylinder. If the stem of the hollow cylinder, increasing its strength characteristics can be achieved by increasing the wall thickness of the hollow rod without increasing the diameter of the stem.

The stroke of the piston above the cylinder, it is preferable to perform more strokes of the pistons of the other cylinders in the 1.15-3.5 times. Research has shown that for most manufactured in Russia truck cranes increase the stroke of the piston of the hydraulic cylinder hanging more than 3.5 times in comparison with the existing values of this parameter can cause the cylinder will interfere with the rotary device, and when placing it closer to the ground can decrease the off road capabilities of the chassis. However, for large cranes increase the length of the housing cylinder hanging can be more than 3.5 times. Increase the stroke of the piston of the hydraulic cylinder hanging less than 1.15 times compared to the existing values of this parameter will also ensure the implementation of the declared technical result, only less than the recommended range.

Structural limitations on the diameter of the cylinder, piston and rod almost no crane no.

The invention provides a receiving several the technical results:

i. Increase allowable slope of a working platform truck crane in the vertical plane passing through the center of rotation of the swing frame and the thrust bearing larger cylinder hanging in the direction of the larger cylinder, in which the bias does not affect the ability of the leveling valve.

The prototype for each cylinder hanging the total piston stroke is equal to 0.6 m, the process of putting up equal to 0.27 m, and allowable slope of a working platform is 2.6-3° (see figure 10 and 11).

In the case of performing, for example, one of the rear cylinders hanging (in particular, rear left, as shown in figure 1) with a stroke equal to 1.3 m, the process of putting up this cylinder is 1 m, the slope of the working platform in the side of this cylinder can reach 9.6-11°.

When performing a larger cylinder with a stroke equal to 2.3 m, the process of putting up this cylinder is 2 m, the slope of the working platform in the side of this cylinder can reach 19-21°.

The design will allow the crane to horizontaloffset and work on a much larger slope at the corresponding location of the crane above the pit. The layout of the crane above the pit shown in figure 5. In the diagram to the left hanging with a longer stroke 1 rest on the bottom of the pit, and the cylinders hanging from m nishimi strokes of the pistons 2, 3, 4 rest on a flat area at the edge of the pit. Positions 13, 14 and 15 are conventionally lines show the same level of the pit. The presence of the valve of one cylinder hanging from a longer stroke allows you to hang the crane above the pit closer to the object of raising or lowering.

Figure 6 presents cargo tall features:

crane prototype CC-59711, hung out on the edge of the pit (upper distance scale with the zero reference for the rear legs);

stated crane, whose rear left bearing rests on the bottom of the pit (the lower the distance scale with the zero reference between the rear and front legs).

Claimed crane can be set at 4 m closer to the center of the pit than the prototype.

7, Fig and figure 9 also presents cargo-tall crane performance, the creation of which was attended by "Sri jib cranes". It is shown that the hanging of the crane above the pit compared to the hanging of the crane on the edge of the pit leads to a significant increase in capacity on the same booms. Studies have shown that in General case the two rear cylinders piston stroke may be longer strokes of the pistons of the other cylinders, namely two front. Also, the two cylinders of the right side of the piston stroke may be longer strokes of the pistons of the other cylinders, namely TLD the left side. Or the two cylinders on the left side moves the pistons can be more strokes of the pistons of the cylinders starboard side.

ii. Increasing the capacity of the crane while working on large inclines a working platform on the edge of the pit when lowering or lifting from the bottom of the pit.

Comparative analysis of cargo high-rise characteristics of the crane KS-59711, hung out on the edge of the pit, and crane, as claimed in the invention, partially displayed above the pit, shows that on the big boom (extended 3 boom sections) maximum load capacity is increased in 1.7 times (from 1.4 t to 2.41 t), middle boom (extended 2 boom sections) the load capacity is increased in 2.2 times (from 3.05 t to 6.82 t), on a small boom (when inverted sections of the boom load capacity increases in 2.4 times (from 10 tons to 24 tons).

Similar data can be obtained by analyzing graphs of figure 7, Fig and Fig.9, which shows the cargo-tall other characteristics of mobile cranes.

iii. Increasing the angle of inclination of the crane in the direction opposite to the working area of the crane, with the aim of increasing the installed capacity on outriggers truck crane when operating in the sector on a large cylinder hanging and maximum during piston.

When running the tap of one of the cylinders of wives the cation with stroke big, what moves the pistons of the other cylinders hanging, and at its maximum extension (at the hanging of the crane on a horizontal surface) of the support contour 36 of the crane will be triangular based on three thrust bearing (see Fig). The crane is stable, if the gravity vector 37 crane, passing through its center of mass 38, passes inside the supporting circuit 36.

With increasing angle of inclination of the crane in the direction opposite to the working area of the crane increases its capacity. Conversely, with increasing angle of inclination of the crane to the side of the crane, its capacity decreases. In the table on Fig presents the dependence of the maximum permissible mass of cargo from the angle of the crane to the side of the raised load. A similar dependence of the permissible mass of cargo from the angle of the crane in the direction opposite to the working area of the crane. With increasing angle of 10° in the direction opposite to the working area of the crane, load capacity can be increased from 1.3 to 1.5 times depending on the boom. With increasing angle of 20° the capacity can be increased from 1.7 to 2.4 times depending on the boom.

iiii. Increasing the depth push the pillar hanging crane anchors or piles into the ground due to the redistribution of this support greater loads from the weight of the crane.

Operation push the thrust bearing g is drollinger putting up is located on the top of the anchor or pile. The rod of this cylinder extends to its maximum length. The crane boom is oriented above the thrust bearing. Then above the surface of the working platform is lifted a weight from 25 to 100% of the maximum possible. Big load from a raised cargo is distributed on a thrust bearing located on the anchor or pile. Under the action of load (weight of crane weight crane lifted cargo) anchor or pile zadumivaetsa in the ground. The longer the stroke or swing of posting, the deeper from the surface of the earth can be crushed anchor or pile.

If the posting of the piston is 27 cm, as a prototype, then to a depth of 27 cm from the surface of the earth can be crushed anchor or pile. If the posting of the piston 150 cm, then at a depth of 150 cm from the ground surface can be crushed anchor or pile.

A BRIEF DESCRIPTION OF THE DRAWINGS.

The figure 1 shows a truck crane, whose rear left support is provided with a hydraulic cylinder hanging from a stroke greater than the strokes of the pistons of the other cylinders hanging.

The figure 2 shows a truck crane in the posted position, with part of the valve body is located above the pit.

The figure 3 presents the layout of a truck crane in the posted position above the pit, in which the rear left support is provided of hydrocele the drôme hanging with stroke big, what moves the pistons of the other cylinders hanging.

The figure 4 presents the layout of a truck crane in the posted position above the pit, in which the front right support is provided with a hydraulic cylinder hanging from a stroke greater than the strokes of the pistons of the other cylinders hanging.

The figure 5 presents a top view of the layout of a truck crane in the posted position over the pit. The crane rear left bearing 1 is equipped with a hydraulic cylinder hanging from a stroke greater than the strokes of the pistons of the other cylinders hanging.

In figures 6, 7, 8 and 9 are graphs cargo high-rise characteristics of mobile cranes in position when the taps are located on the edge of the pit and when the valves are located partially above the pit.

The figure 10 shows a table according to the allowable slope of a working platform from putting stroke cylinders in the longitudinal direction of the crane.

The figure 11 shows a table according to the allowable slope of a working platform from putting stroke cylinders in the transverse direction of the crane.

The figure 12 shows a table with the calculated variations of the loading crane.

The figure 13 shows a table with the dependence of the maximum permissible mass of cargo from the angle of the crane to the side of the raised load.

In the figure 14 presents the Mack the truck crane, based on three outriggers with an inclination in the direction opposite to the working area of the crane.

The figure 15 shows the layout of a truck crane, based on the outriggers, and the inclination of one of the outriggers to the plane of the local horizon (or perpendicular to the plane of the non-device) more tilts other outriggers to the plane of the local horizon.

In the figure 16 presents the drawing cylinder hanging of the crane.

The figure 17 shows a table of options technical features of hydraulic cylinders hanging cranes.

The figure 18 shows a diagram of the loading crane.

The IMPLEMENTATION of the INVENTION

The invention is illustrated by drawings, where figure 1 shows a General view of a truck crane in the transport position. Truck crane includes a telescopic boom 7, the rotator 6, toggling device 5, the outriggers with legs hanging of the crane, which is made in the form of hydraulic cylinders hanging 1, 2, 3 and 4. Cylinder hanging 1 is made longer than the other cylinders with a stroke, a large strokes of the pistons of the other cylinders 2, 3 and 4. On toggling device 5 is installed bearing swivel 8, designed to connect the non-device tap with swivel device.

Each outrigger bearing has two fixed the bathrooms provisions - fully extended (working) and fully stenothoe (transport). Each remote support is a welded box beam cross section, which moves in the transverse beam of the chassis frame by a hydraulic cylinder.

At the end of each outriggers are welded or bolted fixed bearing hanging of the crane, made in the form of a hydraulic cylinder hanging of the crane.

Each cylinder hanging of the crane contains the piston located in the housing of the hydraulic cylinder.

When this cylinder is hanging crane rear left outriggers contains the piston, and the piston stroke is equal to 1800 mm stem Diameter is 120 mm, the diameter of the piston is 145 mm, the pressure under the piston is 20.5 MPa.

Cylinder hanging of the crane right rear outriggers contains the piston, and the piston stroke is equal to 600 mm stem Diameter 100 mm, piston diameter 125 mm, the pressure under the piston 20.5 MPa.

Cylinder hanging crane front left outriggers contains the piston, and the piston stroke is equal to 600 mm stem Diameter 100 mm, piston diameter 125 mm, the pressure under the piston 20.5 MPa.

Cylinder hanging crane front right outriggers contains the piston, and the piston stroke is equal to 600 mm stem Diameter 100 mm, piston diameter 125 mm, the pressure under the piston 20.5 MPa.

the and Fig in table summarizes other options technical features of hydraulic cylinders hanging. Variants were calculated for the modernization of cranes manufactured KS-59711 and COP-K-1 and development of advanced automobile cranes with advanced unilateral resistance.

Figure 2 shows a truck crane in the posted position. The thrust bearing 9 cylinder hanging 1 rests on the bottom 11 of the pit. The thrust bearing 10 cylinder hanging 4 rests on the ground 12 at the edge of the pit. The thrust cylinders hanging front outriggers also rely on the ground at the edge of the pit (not shown). Figure 3 for illustration includes a photo layout of a truck crane above the pit. The cylinder 1 by the thrust bearing 9 is based on the area of the bottom 11 of the pit. Figure 4 also presents a picture of the layout of a truck crane above the pit. Cylinder 3 thrust bearing based on the area of the bottom 11 of the pit.

If you look on top of the truck crane (as shown in figure 5), located above the pit, it is possible to estimate how much closer to the bottom of the pit 11 or to the center of the pit is the faucet compared to the situation when the valve is now on the edge of the pit. Figure 5 indicated support of the crane with hydraulic cylinders 1, 2, 3 and 4. Cylinder 1 rear left support is made with a stroke larger than the strokes of the pistons of the other cylinders hanging, and the heel of this hydroc is lindra rests on the bottom of the pit. Positions 13, 14 and 15 is conventionally shown lines of the same level of the pit. It is seen that if a truck crane has the ability to partially hung over a pit or on a gentle slope of the pit, it can be placed closer to the load, which must be raised from the bottom of the pit, or to the place at the bottom or on the side of the pit, where it is necessary to lower the load.

The effect of the use on the crane of one of the cylinders hanging from a stroke, a large strokes of the pistons of the other cylinders hanging, shown in the graphs, shown in Fig.6, 7, 8 and 9. The curves on the graphs - cargo-tall or cargo characteristics of the crane. On the y - axis height of the boom. The abscissa axis is the distance from the edge of the pit into the pit, and the top axis represents the situation when the valve is on the edge of the pit, and the lower axis when the valve is partially above the pit.

Studies have shown that when the difference in levels of pads located on the bottom of the pit, and the pit in one meter valve type KS-59711 can be placed at 4 m above the pit (see Fig.6), crane type COP-K-1 can be placed at 3 m above the pit (see Fig.7), crane type COP-8973 can be placed at 3.8 m above the pit (see Fig), crane type COP-A-1 can be placed on the 4.2 m above the pit (see Fig.9).

For all the above the data cranes on long booms placement of the faucet above the pit will increase raise the load by 1.5-1.7 times. Small booms value of lifted load can be increased from 2 to 2.4 times.

On Fig presents the hydraulic cylinder hanging of the crane.

Cylinder hanging 1 is made with a stroke equal to 1.8 m (item 33 on Fig), which is 3 times more strokes of the pistons of the other cylinders 2, 3 and 4. The process of putting it is 1.5 meters Allowable slope of a working platform in the longitudinal direction of the crane is 16° (see table in figure 10) or 29 cm/m, which is five times more than the allowable angle of a working platform prototype and other modern mobile cranes.

On Fig indicated the following positions:

16 - rod; 17 - wiper; 18, 32 - retaining ring; 19 - sleeve, 20 - ring support; 21, 25 - o-rings; 22 - housing cylinder; 23 - cuff; 24 - ring protective; 26 - piston; 27 - nut; 28 - screw; 29 - rings rubber movable; 30 - rings profile; 31 - ring; 33 - stroke; 34 - diameter piston; 35 - diameter rod.

With increasing stroke of the piston increases the mass of the cylinder.

The increase in the mass of the cylinder can be calculated by the formula:

where

ρ - the density of the material body and stem of the hydraulic cylinder;

Δl - increasing stroke, larger cylinder in relation to the strokes of the pistons of the other cylinders (item 33 on Fig) or to move the piston protot the PA;

P=3.14;

- the outer diameter of the cylinder;

the diameter of the piston (item 34 on Fig);

- outer diameter of the stem (item 35 on Fig);

- inner diameter of the stem. If the stem without the internal cavity, the.

With the change of the geometric characteristics of the elemental composition of the hydraulic cylinder is not changed.

It is estimated that for modern hydraulic cylinders hanging increasing stroke of 1 m will increase the mass of the cylinder 25-75 kg

There is a constructive opportunity to provide crane on steep slopes at lower magnification the size of one of the cylinders. This requires that posted in the valve tilting of one of the outriggers on which is fixed a larger cylinder hanging in its longitudinal direction to 42 perpendicular to the plane of the non-device was greater than the slope of the other outriggers in their longitudinal directions perpendicular to the plane of the rotary device. On Fig shows the layout of a truck crane, whose slope outriggers 41 in its longitudinal direction to 42 perpendicular to the plane of the rotary device more inclination others who anenih supports (for example, front left support) in their longitudinal directions perpendicular to the plane of the rotary device. The angle 43 between the upper surface of the outriggers 41 in its longitudinal direction and perpendicular to the plane of the rotary device is 105°.

The corners 44 between the upper surfaces of the other outriggers in their longitudinal directions and 42 perpendicular to the plane of the rotary device is 90°. The dierence of the angles is equal to 15°. With this design the outriggers its cylinder (more on tap) stroke can be reduced from 1.8 m to 1.3 m, Respectively, it will be easier to make a larger cylinder.

As mentioned above, the slope of the outriggers in its longitudinal direction perpendicular to the plane of the rotary device is determined by the angle between the top surface of the outriggers in its longitudinal direction and perpendicular to the plane of the rotary device. The angular position of the plane position of the device relative to the plane of the local horizon is determined by the angle indicators. As the directions of inclination of the crane used Creamery liquid type, electronic angle-finders is considered (type Geo-Fennel Multi Diget Pro.), electronic levels (type Stabila 86) and other devices. The plane of the non-device - plane passing through the surface is knosti toggling device, where is the pointer angle of the rotary device (for example, lead frame) to the plane of the local horizon.

To support the left side of the angle 44 between the upper surface of the outriggers in its longitudinal direction and 42 perpendicular to the plane of the rotary device is measured from the perpendicular to the plane of the non-device anti-clockwise with the following provision of support to the person performing the measurement (see Fig):

- toggling the device of the crane to the right of the person;

- remote support extends to the left from the man.

To support the starboard angle 43 between the upper surface of the outriggers in its longitudinal direction and 42 perpendicular to the plane of the rotary device is measured from the perpendicular to the plane of the non-device clockwise to the next position of support to the person performing the measurement (see Fig):

- toggling the device of the crane to the left of the person;

- remote support extends to the right from a person.

Bearing 41 is pulled out from the cross-beams of the non-device - guide for the outriggers, which is located on the chassis at the same angle 43, the support, namely at a large angle to the perpendicular to the plane of the non-device than the other transverse beams. In this constructi the nom solution the angle of the transverse beams specifies the angle of the outriggers. Cross beam - directing to other outriggers are located on the chassis at a lower angle 44, 90°.

Thus, toggling, the device has a transverse beam - guide outriggers with a large hydraulic cylinder, in which the angle of inclination in its longitudinal direction perpendicular to the plane of the rotary device more angles of the other transverse beams - guides for other outriggers in their longitudinal directions perpendicular to the plane of the rotary device. Studies have shown that the angle of the outriggers (as well as cross-beam - guide) in its longitudinal direction perpendicular to the plane of the rotary device may amount to 90 to 135°.

The inclined position of the guide and the outriggers allows you to perform this remote support greater length (under condition of absence from her for the dimensions of the crane), other than relying on the crane. If the length of the outriggers more so the greater the area covered by the reference path.

On Fig introduced the following positions: "G" - position 45, "C" - position 46, "b" item 47, "h1" position 48, "a" - item 49, h - position 50, the Q - item 51, "α" position 39. Designations are consistent with the parameters Fig and 13.

Truck crane works in the following way. To the place of work the crane moves move on the roads to the work site.

The initial position of the crane and transport. In this position the sections are fully engaged, the boom is in the transport position on the rack support boom, hook suspension mounted on the chassis frame or toggling device; jib, if any, attached to the boom at its side surface, the outriggers engaged and locked by the latches, engine crane is enabled, the crane is on site.

Orient the valve (as shown in figure 5) so that the vertical plane passing through the center of rotation of the rotary device, and a support element cylinder hanging from a longer stroke coincides with the direction of greatest slope of the operating platform. A level working platform under heel cylinder with longer stroke (more RAM) lower levels of work sites under the thrust of the other cylinders.

Work on site begins with a translation of the crane from transport to working position. The crane is mounted on the outriggers and horizontial through cylinders hanging of the crane.

The stroke of the larger cylinder (which is the value of up to 1.8 m) is larger than the strokes of the pistons of the other cylinders (representing a value of up to 0.6 m).

With these characteristics hydraulic cylinders hanging angle of the working site with the amount from 0 to 16° .

After leveling of crane carrying out work on the lifting and lowering of loads, for example, on the bottom of the pit, move the lifting device and the load on the building site.

The design truck crane will provide an increase in allowable slope of a working platform, where the slope does not affect the ability of the leveling valve. In addition, given the possibility declared a truck crane to horizontaloffset on steep slopes, increasing its capacity while working on large inclines work site, for example on the edge of the pit when lowering or lifting from the bottom of the pit.

As a prototype, and announced a truck crane has the ability to be installed on the stabilizers so that it toggling the device was tilted in the direction opposite to the working area of the crane. Unlike the prototype of the claimed crane to a greater extent can realize this possibility when working in the sector on a large cylinder hanging. In the described example implementation of the invention toggling, the device may be tilted to the plane of the horizontal ground at an angle 14-16°. The prototype is just under an angle of 3°.

The establishment of non-part angle 15° in the opposite sector work over 40 great the m cylinder (see Fig), will increase capacity on long booms approximately 1.48 times (48%), small departures - 1.7 times (70%), and more.

The prototype of an increased capacity for large departures due to tilt (three degrees) in the direction opposite to the sector of work, possibly up to 8%, and small booms up to 18% (see Fig and Fig). On Fig options with angles α to 3° can be used to estimate increase (decrease) the capacity of the prototype. And options with angles α from three to thirty degrees can be used to estimate increase (decrease) the declared capacity of the crane.

With increasing progress of the posting of the piston with a 0.275 m to 1.5 m, respectively, increases the depth push the anchors or piles.

The prototype of the progress of the posting of the piston is 27.5 cm, then at a depth of 27.5 cm from the surface of the earth can be crushed anchor or pile. If the posting of the piston is 2 m, mean depth of 2 m from the earth's surface can be crushed anchor or pile. Claimed crane, with the help of one of the pillars (no matter what, for example, the rear left or front left or front right or rear right) can effectively solve the problem push the anchors or piles into the ground.

Thus will be realized the invention is implemented it is assigned the e and technical results achieved.

LITERATURE

1. Zaitsev L.V., masroor PPM mobile cranes: a Textbook for environments. Pro-TEC. Uch-Sch. - 2nd ed., revised and enlarged extra - M.: Higher. school, 1978. - 327 C., Il.

2. Crane : self-propelled on a special wheeled chassis. KS-59711. The user guide. KS-59711.00.000 ER, 2003

3. International standard ISO 4306/1-1985, cranes - Vocabulary-Part 1: General provisions.

4. The big explanatory dictionary of the Russian language. / Drafter and editor Sousnitsu. - SPb.: "Norent", 2000.

Truck crane, containing the arrow, the rotary device, rotary device, the outriggers with legs hanging of the crane, each bearing the hanging of the crane is made in the form of a hydraulic cylinder and contains the piston, characterized in that one of the pillars of the hanging of the crane stroke more strokes of the pistons of the other pillars of the hanging of the crane.



 

Same patents:

FIELD: transport.

SUBSTANCE: device contains movable chassis, support platform, pitch and roll sensors made of dielectric with rheostat winding, control block made as amplifier of signals from vertical pitch and roll sensors with rheostat guides oriented in longitudinal and lateral planes, control panel for lifting and lowering rods of remote hydraulic cylinders.

EFFECT: enhancing leveling accuracy.

3 dwg

Crane truck // 2334672

FIELD: transport.

SUBSTANCE: crane truck comprises an arm, a rotary and fixed device, two outriggers with the crane L.H. side suspension supports and two outriggers with the crane R.H. side suspension supports. Every crane suspension support represents a hydraulic cylinder incorporating a piston with rod. The piston stroke of the two supports of crane suspension exceeds that of the like supports on the opposite side.

EFFECT: enlarged tolerable slope of the crane truck operating site, higher load-lifting capacity in operation on steep slopes, enlarged crane lengthwise inclination and greater deepening of anchor stay or piles by the crane suspension rear supports.

14 dwg

Crane truck // 2334671

FIELD: transport.

SUBSTANCE: crane truck comprises an arm, a rotary and no rotary devices, two rear outriggers with the crane suspension supports and two front outriggers with the crane suspension supports. Every crane suspension support represents a hydraulic cylinder incorporating a piston with rod. The piston stroke of the two rear supports of crane suspension exceeds that of the like front supports.

EFFECT: enlarged tolerable slope of the crane truck operating site, higher load-lifting capacity in operation on steep slopes, enlarged crane lengthwise inclination and greater deepening of anchor stay or piles by the crane suspension rear supports.

15 dwg

Lorry-mounted crane // 2333147

FIELD: transport.

SUBSTANCE: lorry-mounted crane incorporates a jib, a rotary assembly, a fixed assembly, outboard supports with the crane hydraulic cylinder suspending supports (hydraulic supports). The crane can be suspended on all outboard supports. Note that in the crane suspended position, the inclination of one of outboard supports in its lengthwise vertical plane towards the projection of a perpendicular on the plane of the fixed assembly exceeds the inclination of the other outboard supports in their lengthwise vertical planes towards the projections of the perpendicular to the fixed assembly plane.

EFFECT: increase in tolerable inclination of the crane and its load-lifting capacity in operation on notable slopes.

6 cl, 29 dwg, 26 ex

Lorry-mounted crane // 2333146

FIELD: transport.

SUBSTANCE: lorry-mounted crane incorporates a jib, a rotary assembly, a fixed assembly, two-section outboard supports with the crane hydraulic cylinder suspending supports. The crane can be suspended on extended first and second sections of all outboard supports. Note that in the crane suspended position, the inclination of the first section of one of outboard supports in its lengthwise vertical plane towards the projection of a perpendicular on the plane of the fixed assembly exceeds the inclination of the first section of the other outboard supports in their lengthwise vertical planes towards the projections of the perpendicular to the fixed assembly plane.

EFFECT: increase in tolerable inclination of the crane and its load-lifting capacity in operation on notable slopes.

7 cl, 29 dwg, 19 ex

Lorry-mounted crane // 2333145

FIELD: transport.

SUBSTANCE: lorry-mounted crane incorporates a jib, a rotary assembly, a fixed assembly, two-section outboard supports with the crane hydraulic cylinder suspending supports. The crane can be suspended on extended first and second sections of all outboard supports. Note that in the crane suspended position, the inclination of one of outboard supports in its lengthwise vertical plane towards the projection of a perpendicular on the plane of the fixed assembly exceeds the inclination of the other outboard supports in their lengthwise vertical planes towards the projections of the perpendicular to the fixed assembly plane.

EFFECT: increase in tolerable inclination of the crane and its load-lifting capacity.

7 cl, 29 dwg, 19 ex

Boom-type crane // 2312057

FIELD: agricultural engineering, in particular, handling technique.

SUBSTANCE: boom-type crane has movable part of column equipped with mechanism for rotation around vertical axis and positioned within immovable part of column. Immovable part of column is positioned so as to be dismantled by means of brackets mounted on upper and lower pins of hydraulic suspension system of vehicle. On movable part of column there are boom and crank with telescopic bar, said boom and bar being successively positioned and mutually connected with each other through pivot joint. Load-handling device is fixed at free end of telescopic bar. Boom-type crane is equipped with outriggers. Boom-type crane is further equipped with drive for mechanism for rotating of movable part of column, boom lifting drive, crank rotating drive, telescopic boom extending drive made in the form of power cylinders. Drive for moving outriggers in vertical plane is made in the form of pair of levers. Levers are mounted with their one ends on ends of hydraulic suspension system of vehicle, said system having drive for angular movement of upper pin. Other ends of levers are connected through pivotally joined double-armed beams to supports.

EFFECT: increased handling capacity and wider handling zone.

3 dwg

FIELD: mechanical engineering; lifting and transporting machines.

SUBSTANCE: proposed device designed for automatically providing horizontal position of support platform of lifting mechanisms has movable chassis, support platform, horizontal position pickups, hydraulic cylinders, and panel to control lifting and lowering of rods of extension hydraulic cylinders. Said control device is made in form of electronic unit with pickups of contact of hydraulic cylinder rods with support surface. Horizontal position pickups are made of dielectric material, filled up with current-carrying liquid and connected to each other in intersection of pipelines with central pickup, being reference one.

EFFECT: provision of automatic levelling of support platform in horizontal plane, reduced time taken for levelling, increased accuracy of levelling of support platform.

3 dwg

FIELD: mechanical engineering; hoists and lifts.

SUBSTANCE: invention relates to mobile hoists and to safe operation of mobile hoists on outriggers. Proposed device contains base machine with frame, boom, press feet on outriggers, levers-rockers, four pairs of piston double-acting hydraulic cylinders with rear cover for welding which are rigidly interconnected to form rectangular support structure. Each pair of hydraulic cylinders is interconnected by pipeline from side of delivery spaces, and positive displacement hydraulic pump supplies all hydraulic cylinders of support structure. Liquid flow dividers-proportioners with floating piston arranged square to hydraulic cylinders with press foot of support structure are installed between parallel-mounted pairs of hydraulic cylinders. Each proportioner contains two throttling plates with holes of equal diameter which are symmetrically installed relative to inlet hole for liquid in proportioner which is provided with two outlet cylindrical ports of one size.

EFFECT: provision of leveling up of loads on press feet with outriggers.

2 dwg

FIELD: hoisting and transportation equipment, particularly outriggers therefore.

SUBSTANCE: outrigger comprises fixed beam and sliding beam inserted in guiding means of the fixed beam. Lifting hydraulic cylinder is pivotally connected to the sliding beam. Traction hydraulic cylinder has body fastened to fixed beam and rod secured to sliding beam by means of fastening finger inserted in sliding beam slot. Connected to the slot is profiled strip holder. Profiled strip is installed in guiding means of fixed beam. Fixed beam position with respect to sliding one is retained by composite finger including two members. One member is spring-loaded and arranged in fixed beam. Another member may move in telescopic beam and may be fixed in its extreme positions. Lifting hydraulic cylinder is fixedly connected to holder, which is hinged to fixed beam by means of control-rod.

EFFECT: increased service performance.

3 dwg

FIELD: mechanical engineering; materials handling facilities.

SUBSTANCE: proposed set of part of self-propelled crane includes chassis, first connecting devices installed on part of said chassis, additional support containing at least one outrigger resting of ground when self-propelled crane is in stationary condition, second connecting devices installed on additional support for butt-joining with said first connecting device on chassis for detachable connection of additional support to said part of chassis. Set includes also pull-type axle unit consisting of at least one wheel installed for rolling along ground, and third connecting devices installed on pull-type axle unit for butt-jointing with said first connecting devices on chassis for detachable connection of said pull-type axle unit with said part of chassis. First connecting devices are made for alternate butt-joint with said second connecting devices or with said third connecting devices providing alternate connection of additional support or said pull-type axle unit to crane, accordingly.

EFFECT: provision of easy transformation or changing of crane chassis structure.

16 cl, 9 dwg

FIELD: transport engineering; load-lifting facilities.

SUBSTANCE: invention relates to support structures preventing turning over of load-lifting devices. Proposed hinge support of mobile antenna-mast device consists of base installed on platform, hinge-support section with jack hinge-connected to base, tie-rod to provide stability of hinged support section in horizontal direction, hydraulic cylinder hinge-secured on base, folding mechanism to bring hinge support section into traveling position. Folding mechanism is furnished with shackle mounted in cut of vertical wall of hinge support section and provided with two hinge joints, one of which is connected with rod of hydraulic cylinder and the other, with eye, welded to vertical wall of hinged support section provided with stiffening rib. At initial moment of folding, shackle encloses said stiffening rib.

EFFECT: simplified design of hinge support, reduced mass and dimensional characteristics, and increased efficiency.

3 dwg

FIELD: construction facilities.

SUBSTANCE: invention can be used in vehicle frames for mounting special equipment, for instance, crane equipment. Proposed running frame of vehicle contains longitudinal beam carrying base unit and cross beams for outriggers. Cross beams for outriggers are installed with tilting relative to cross axis of frame. Angle of tilting is chosen to form rectangular support outline when outriggers are completely extended.

EFFECT: provision of uniform distribution of loads in base unit owing to equalizing deformations relative to longitudinal axis of frame.

1 dwg

FIELD: transport engineering.

SUBSTANCE: proposed support member for vehicle with replaceable container contains two telescopic pipes and pneumatic drive to telescope the pipes. Inner telescopic pipe is provided with threaded or ring bearing parts with horizontal support surface. outer pipe is provided with gripping element with horizontal support surfaces engaging with bearing parts, said gripping element being previously tensioned by spring from position out of gripping into gripping position and is secured on outer pipe with power closure. Inner telescopic pipe is connected through retainer and rod with rod of piston of pneumatic drive. Hemispherical recess is made on outer section of pipe to receive hemispherical boss of rod. Rod and gripping element are extended form engagement positions with possibility of relative movement between pipes when boss gets out of recess under action of piston rod moved inwards or outwards.

EFFECT: provision of automatic turning and extending of support member of replaceable container.

5 dwg

FIELD: hoisting and transportation equipment, particularly outriggers therefore.

SUBSTANCE: outrigger comprises fixed beam and sliding beam inserted in guiding means of the fixed beam. Lifting hydraulic cylinder is pivotally connected to the sliding beam. Traction hydraulic cylinder has body fastened to fixed beam and rod secured to sliding beam by means of fastening finger inserted in sliding beam slot. Connected to the slot is profiled strip holder. Profiled strip is installed in guiding means of fixed beam. Fixed beam position with respect to sliding one is retained by composite finger including two members. One member is spring-loaded and arranged in fixed beam. Another member may move in telescopic beam and may be fixed in its extreme positions. Lifting hydraulic cylinder is fixedly connected to holder, which is hinged to fixed beam by means of control-rod.

EFFECT: increased service performance.

3 dwg

FIELD: mechanical engineering; hoists and lifts.

SUBSTANCE: invention relates to mobile hoists and to safe operation of mobile hoists on outriggers. Proposed device contains base machine with frame, boom, press feet on outriggers, levers-rockers, four pairs of piston double-acting hydraulic cylinders with rear cover for welding which are rigidly interconnected to form rectangular support structure. Each pair of hydraulic cylinders is interconnected by pipeline from side of delivery spaces, and positive displacement hydraulic pump supplies all hydraulic cylinders of support structure. Liquid flow dividers-proportioners with floating piston arranged square to hydraulic cylinders with press foot of support structure are installed between parallel-mounted pairs of hydraulic cylinders. Each proportioner contains two throttling plates with holes of equal diameter which are symmetrically installed relative to inlet hole for liquid in proportioner which is provided with two outlet cylindrical ports of one size.

EFFECT: provision of leveling up of loads on press feet with outriggers.

2 dwg

FIELD: mechanical engineering; lifting and transporting machines.

SUBSTANCE: proposed device designed for automatically providing horizontal position of support platform of lifting mechanisms has movable chassis, support platform, horizontal position pickups, hydraulic cylinders, and panel to control lifting and lowering of rods of extension hydraulic cylinders. Said control device is made in form of electronic unit with pickups of contact of hydraulic cylinder rods with support surface. Horizontal position pickups are made of dielectric material, filled up with current-carrying liquid and connected to each other in intersection of pipelines with central pickup, being reference one.

EFFECT: provision of automatic levelling of support platform in horizontal plane, reduced time taken for levelling, increased accuracy of levelling of support platform.

3 dwg

Boom-type crane // 2312057

FIELD: agricultural engineering, in particular, handling technique.

SUBSTANCE: boom-type crane has movable part of column equipped with mechanism for rotation around vertical axis and positioned within immovable part of column. Immovable part of column is positioned so as to be dismantled by means of brackets mounted on upper and lower pins of hydraulic suspension system of vehicle. On movable part of column there are boom and crank with telescopic bar, said boom and bar being successively positioned and mutually connected with each other through pivot joint. Load-handling device is fixed at free end of telescopic bar. Boom-type crane is equipped with outriggers. Boom-type crane is further equipped with drive for mechanism for rotating of movable part of column, boom lifting drive, crank rotating drive, telescopic boom extending drive made in the form of power cylinders. Drive for moving outriggers in vertical plane is made in the form of pair of levers. Levers are mounted with their one ends on ends of hydraulic suspension system of vehicle, said system having drive for angular movement of upper pin. Other ends of levers are connected through pivotally joined double-armed beams to supports.

EFFECT: increased handling capacity and wider handling zone.

3 dwg

Lorry-mounted crane // 2333145

FIELD: transport.

SUBSTANCE: lorry-mounted crane incorporates a jib, a rotary assembly, a fixed assembly, two-section outboard supports with the crane hydraulic cylinder suspending supports. The crane can be suspended on extended first and second sections of all outboard supports. Note that in the crane suspended position, the inclination of one of outboard supports in its lengthwise vertical plane towards the projection of a perpendicular on the plane of the fixed assembly exceeds the inclination of the other outboard supports in their lengthwise vertical planes towards the projections of the perpendicular to the fixed assembly plane.

EFFECT: increase in tolerable inclination of the crane and its load-lifting capacity.

7 cl, 29 dwg, 19 ex

Lorry-mounted crane // 2333146

FIELD: transport.

SUBSTANCE: lorry-mounted crane incorporates a jib, a rotary assembly, a fixed assembly, two-section outboard supports with the crane hydraulic cylinder suspending supports. The crane can be suspended on extended first and second sections of all outboard supports. Note that in the crane suspended position, the inclination of the first section of one of outboard supports in its lengthwise vertical plane towards the projection of a perpendicular on the plane of the fixed assembly exceeds the inclination of the first section of the other outboard supports in their lengthwise vertical planes towards the projections of the perpendicular to the fixed assembly plane.

EFFECT: increase in tolerable inclination of the crane and its load-lifting capacity in operation on notable slopes.

7 cl, 29 dwg, 19 ex

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