Self-levelling device for self-propelled carrying and lifting machines

FIELD: machine construction.

SUBSTANCE: invention relates to the field of machine construction and can be used during the manufacturing of carrying and lifting machines. Self-levelling device for self-propelled carrying and lifting machines contains four hydraulic cylinders of outriggers and the control unit interacting with them. Moreover on the hydraulic cylinders are mounted sensors, which respond to touch of the plunger pin of the hydraulic cylinder with the supporting surface and which gives a signal to the control unit, and on the non-rotational frame is mutually transversely mounted a sensor, which reacts to its deviation to its longitudinal and transverse planes relative to the horizontal plane and which gives signals to the control unit.

EFFECT: automation of the process of the self-propelled carrying and lifting machines in the horizontal plane, and as a consequence cutting time in the adduction of the crane in the working position and increasing accuracy of alignment.

2 dwg

 

The invention relates to mechanical engineering and can be used in the design of hoisting-and-transport machines.

Self-propelled lifting-transport machines (LSM) to increase the support base of the crane and unloading chassis equipped with outriggers [1, str-263]. After installation, self-propelled cranes on outriggers align its toggling frame in the horizontal plane.

It is known, for example, the alignment device self-propelled cranes, containing four power cylinder outriggers located on the corners of the toggling frame, the spool valve control operation of the power cylinder and the mercury level [2].

The disadvantage of this device is low alignment precision and the large time required to bring the crane into position.

The closest to the technical nature of the claimed device (prototype) is a lift-the equalizer [3]. This device includes: turntable, made in the form of two mating rings of wedge-shaped cross-section, four hydraulic outrigger cylinder (two on each side - front and back) and the control unit. Adjustment of the angle of inclination of the rotary frame is performed by the control unit by turning the wedge rings relative to each other, as well as the extension and retraction of the rod g is draulically outrigger cylinders. Control commands are turning around and hydraulic cylinders are formed by the control unit according to the signals specified by the operator.

The disadvantage of this device is the lack of precise alignment, and that during lifting operations give rise to forces tending to displace the ring of wedge-shaped cross-section relative to each other, resulting in the need for additional device to create countervailing power.

The technical result, which is aimed invention is to automate the alignment process self-propelled cranes in the horizontal plane, and consequently, reducing the time to bring the crane into position and improving the accuracy of alignment.

This technical result is achieved by the fact that in the known device the automatic alignment of the self-propelled lifting-transport machines, containing four hydraulic outrigger cylinder and interact with the control unit, hydraulic cylinders installed the sensors on the contact rod of the hydraulic cylinder support surface and supplies a signal to the control unit, and the toggling frame mutually perpendicular sensors, responsive to the deflection in the longitudinal and transverse plane relative to the horizontal surface the surface and supplies a signal to the control unit

The invention consists in the fact that using signals received from the sensors, is formed in the control unit commands, with which automatic control of the position of the cylinders as long as the value of the inclination angles melborune frame in the longitudinal and transverse plane relative to the horizontal plane is not zero.

The invention is illustrated block diagram of the device represented in figure 1, and a diagram of the sensor (option), responsive to the direction of deviation of the position of the frame relative to the horizontal plane, are presented in figure 2.

The structure of the device for automatic alignment of the self-propelled lifting-transport machines includes:

sensors (1-4), responsive to the contact rods of hydraulic cylinders with a support surface;

sensors (5-6), responsive to the deviation of the non-frames respectively in longitudinal and transverse planes relative to the horizontal plane;

the control unit 7.

Thus the outputs of the first 1, second 2, third 3, fourth 4 sensors are connected to corresponding inputs of the control unit. The first sensor (sensor deflection angle of the rotary frame in the longitudinal plane) 5 sensor 6 sensor angle position of the frame in the transverse PLO the bone) is connected to the fifth and the seventh sign, and second outputs from the sixth and the eighth input of the control unit, respectively.

The purpose of the elements of the device are clear from their names.

The device operates as follows. After removal of the outrigger LSM operator moves the hydraulic cylinders in the mode of extension rods. At the contact of the rod with the bearing surface on the output of the respective sensor of a signal, which is supplied to the control unit, where a command to shut down the hydraulic cylinder. This extension of the rod of the hydraulic cylinder stops. When the contact rod all hydraulic cylinders with a support surface mode auto-leveling rotary frame relative to the horizontal surface. Consider the alignment mode toggling frame in one plane, for example, in the longitudinal plane.

When the deviation of the position of the frame relative to the horizontal surface on one of the outputs of the sensor angle position of the frame in the longitudinal plane 5, you may receive the signal sent to the control unit 7, which is formed by the command to activate the hydraulic cylinders. What hydraulic cylinders will be included and on what action (extension or retraction of the rod depends on the output of the sensor 5 will come whitefish is al in the control unit 7. Suppose that the toggling frame is rejected to the right and that this corresponds to the appearance of a signal at the first output of the sensor 5, in this position of the rotary frame in the control unit 7 is formed team on retraction of the rod of the left pair of hydraulic cylinders and on the nomination right. In the absence of a signal on both outputs of the sensor 5, which corresponds to the non-alignment of the frame in the longitudinal plane, the control unit 7 is formed command to shut down the hydraulic cylinders. Similarly align in the transverse plane. Only when this alignment will occur with the front and rear pairs of cylinders. The alignment of the LSM to occur up until the outputs of the sensors 5 and 6 will be present in the signal. When no signal is detected from the outputs of the sensors 5 and 6 in the control unit 7 is formed command to shut down the hydraulic cylinders and produces information about the completion of the alignment mode toggling frame and ready LSM to work.

The proposed solution is new as from publicly available information is not known installation in hydraulic cylinders, outriggers self-propelled PTM sensors 1-4, responsive to the contact rods of the hydraulic cylinders with the supporting surface and supplies a signal to the control unit 7, and Neovo is now frame sensors 5-6, reacting to its deviation with respect to the horizontal surface and the input signal to the control unit.

The proposed solution involves an inventive step, because of the published scientific data and known technical solution is not obvious that the installation in hydraulic cylinders, outriggers self-propelled PTM sensors 1-4, responsive to the contact rods of the hydraulic cylinders with the supporting surface and supplies a signal to the control unit 7, and the toggling frame sensors 5-6, reacting to its deviation with respect to the horizontal surface and the input signal to the control unit 7, provides automation of the alignment process self-propelled cranes in the horizontal plane, and consequently, decreasing the time it is brought into working position and improving the accuracy of alignment.

The proposed solution is industrially applicable, as to its implementation can be used with standard equipment and accessories used in mechanical engineering and electrical engineering.

As a sensor, responsive to the contact rod of the hydraulic cylinder with the support surface can be used, for example, limit switch, push type [4, str], rigidly fixed on the base rod of the hydraulic cylinder.

Od the h variant of the construction of the sensor, responsive to the deviation of the position of the frame relative to the horizontal surface and the input signal to the control unit, shown in figure 2. The sensor consists of a hollow toroidal segment 8, is rigidly fixed at the center of gravity on a flat base 9. In the case of a toroidal segment 8 at the same distance relative to the vertical to the base 9 of the plane passing through the center of gravity to the left and to the right are two sets of led-photodiode" 10. 11. In each pair led with a photodiode placed on the same axis. Between the LEDs 13, 14 and photodiodes 15, 16 set the shutter 12 can move within the toroidal segment 8 when the deviation of the sensor relative to the horizontal plane. The outputs of the photodiodes 15, 16 are the outputs of the sensor. When the horizontal position of the sensor the shutter 12 closes the LEDs 13, 14 and the signal at its outputs is missing. When the deviation of the sensor in one direction or another, the shutter 12 is moved in the opposite direction and one of the LEDs is opened, and the output of the photodiode located coaxially with it, you receive the signal.

The control unit may be manufactured using logic elements used in electronics.

Installation in hydraulic cylinders, outriggers self-propelled PTM sensors 1-4, reacting to contact the currents of hydraulic cylinders with a support surface and supplies a signal to the control unit 7, and the toggling frame sensors 5-6, reacting to its deviation with respect to the horizontal surface and the input signal to the control unit 7, provides automation of the alignment process self-propelled cranes in the horizontal plane and, consequently, decreasing the time it is brought into working position and improving the accuracy of alignment.

Sources of information

1. Vinson A.A. Lifting-transport machines. Textbook for institutes of higher education "Hoisting-and-transport, building, road machines and equipment". - 4th ed., revised and enlarged extra - M.: Mashinostroenie, 1989, str-263.

2. The crane car military COP-3572. Technical description and operating instructions. - M: order of the red banner of Labour Voenizdat, Ministry of defense, USSR, 1980.

3. The journal of Construction and road machines" No. 5 - M: VNIIPO, 1998, p.44.

4. Alexandrov BTW, Hoisting machines. Textbook for high schools. - M.: Izd-vo MGTU im. Baumann. - Graduate school, 2000.

The automatic alignment of the self-propelled lifting-transport machines, containing four hydraulic outrigger cylinder and interact with the control unit, characterized in that the hydraulic cylinders installed the sensors on the contact rod of the hydraulic cylinder support surface and supplies a signal to the control unit,and the toggling frame mutually perpendicular sensors, responsive to the deflection in the longitudinal and transverse plane relative to the horizontal surface and the input signal to the control unit.



 

Same patents:

FIELD: machine construction.

SUBSTANCE: invention relates to the field of machine construction and can be used during construction of carrying and lifting machines. Self-aligning device for a support platform contains a revolving cabin, support cabin of a portable chassis, amplifier control unit, tilting sensor, oriented in longitudinal and transverse planes of the platform, swiveling support, control panel, sensor contacts plunger pins with the support surface, hydraulic cylinders.

EFFECT: increasing accuracy of aligning.

3 dwg

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

FIELD: transport.

SUBSTANCE: invention relates to railroad machinery, particularly, to the loading-unloading devices incorporates with rail-carrying rolling stock and rail length storages. The proposed device comprises a gantry mounted on a fixed base and incorporating rail grippers, each being linked to the gantry by a cable wound up the drum fitted on the shaft attached to the gantry. The said drum is fitted on the aforesaid shaft by means of a torque-limiting clutch representing, for example, a spring-loaded friction tapered pair. The track length ends are furnished with locks, their mating pockets being arranged on the rolling stock or the storage.

EFFECT: higher efficiency of loading-unloading, higher reliability of locking track length ends in rolling stock or storage locks.

3 cl, 3 dwg

FIELD: construction.

SUBSTANCE: legged bridge construction gantry consists of powered trucks interconnected with a transverse bridge and lift-and-transfer mechanisms (mounted on the trucks) consisting of a cross bar, support legs and walking legs and trucks moving along the cross bar skids. The walking legs are telescopic ones, with integrated hydraulic cylinders and resting on swivel joints, with swivel studs mounted on all the bridge pillars. The support legs are pivotally connected to the brackets of the powered trucks and are equipped with carrying hydraulic cylinders. The cross bar is pivotally suspended onto the legs to remain in the horizontal position.

EFFECT: enhancing the erection procedures efficiency.

2 cl, 2 dwg

Crane bridge // 2324641

FIELD: construction.

SUBSTANCE: crane bridge consists of main beams with a rectangular cut from the form of the tail beams, on the points joined to the tail beams. The upper part of the main beam has the shape of a rectangular cog and is joined to the tail beams using flanges, fixed to the lower face of the rectangular cog of the main beam and to the upper part of the tail beam, as well as a centre pin and fastening elements. The rectangular cog of the main beam has opening on the lower part of the horizontal plate, which is covered by a compensating cover-plate, with an opening reciprocal to the centre pin, welded to the upper part of the tail beam.

EFFECT: increased reliability and accuracy of assembling.

3 dwg

FIELD: mechanical engineering; tower cranes.

SUBSTANCE: proposed running support frame has central part with upper and lower sheets, support ring with holes in ring and upper sheet secured on upper sheet and connected by pivots and braces with central part of cantilever. Central part of frame is provided with cross box beams. Conical inserts are arranged between adjacent beams, being rigidly connected with beams. Stiffening ribs are vertical attached to each insert in its upper part over perimeter of frame. Each conical insert is rigidly connected with upper and lower sheets of central part of frame, each stiffening rib is arranged between holes of upper sheet, vertical walls of each beam and conical inserts are connected with upper and lower sheets, and central part of frame and cantilevers are provided with engaging stops.

EFFECT: increased strength of frame, reduced metal usage and labor input in manufacture.

5 cl, 9 dwg

FIELD: mechanical engineering; transport and different branches of industry.

SUBSTANCE: invention relates to materials handling facilities. Proposed working trestle has flooring with rails, posts of crane track serving as posts of trestle. Trestle is provided with solid guard located between posts of crane track and shelter placed over trestle. It can be furnished with warm room for crane operator.

EFFECT: improved convenience in operation.

2 cl, 2 dwg

FIELD: mechanical engineering; bridge cranes for arch buildings.

SUBSTANCE: proposed overhead-track hoist contains crane track, curvilinear bridge rigidly secured on trolleys whose profile follows profile of arch building, load trolley installed on bridge guide with suspended load hoisting mechanism, and load trolley travel-motion mechanism. Bridge is made in form of H-beam. Planer-bushed chain is arranged on upper web of beam and secured on its ends for moving trolley along the chain. Trolley is furnished with reduction gear drive with sprocket and brake. Upper web of H-beam is provided at edges with vertical beads between which planar-bushed chain is placed. Projecting parts of chain pins are freely fitted in slots of beads arranged radially along entire length of beam.

EFFECT: simplified design of trolley travel-motion mechanism.

4 dwg

FIELD: materials handling facilities; bridge cranes for arched buildings.

SUBSTANCE: proposed jib contains craneway track, curvilinear bridge rigidly secured on bogies whose profile follow the profile of arch type building, and load trolley installed on bridge guides with load-lifting mechanism suspended from trolley and trolley travel-motion mechanism. Bridge is made in form of H-beam. Leaf-and-bush chain arranged on upper flange of beam is secured on ends of beam and designed for movement of trolley equipped with reduction gear drive with sprocket and brake. Upper flange of H-beam is provided with vertical beads between which leaf-and-bush chain is arranged.

EFFECT: simplified design of trolley travel-motion mechanism along bridge of arch type.

2 cl, 2 dwg

Gantry crane // 2252910

FIELD: mechanical engineering; load-lifting and transportation facilities.

SUBSTANCE: proposed gantry crane contain carrying bridge and supports connected with bridge and fastened by braces. Each support consists of two parts interconnected by flanges and hinge with axle arranged parallel to plane of flanges. Carrying bridge is connected with upper parts of supports by means of axles. Axles of hinge connecting two parts of each support is arranged square to direction of crane movement, and lower part of each support is connected similar to its connection with upper part with brace. Each brace consists of two parts interconnected by cover plates and bolt joints. Washers for mounting axles of connection with carrying bridge are fixed on upper parts of supports. Crane is furnished with upper beams connected with upper parts of supports. Both parts of each braces, upper beams and lower parts of supports, being box-shaped, can be provided with partitions made of sheets to compensate for twisting of said parts.

EFFECT: reduced labor input at mounting, improved reliability of crane in operation.

2 cl, 8 dwg

FIELD: machine construction.

SUBSTANCE: invention relates to the field of machine construction and can be used during construction of carrying and lifting machines. Self-aligning device for a support platform contains a revolving cabin, support cabin of a portable chassis, amplifier control unit, tilting sensor, oriented in longitudinal and transverse planes of the platform, swiveling support, control panel, sensor contacts plunger pins with the support surface, hydraulic cylinders.

EFFECT: increasing accuracy of aligning.

3 dwg

Lorry-mounted crane // 2341444

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

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; 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

Up!