External support of lifting-and-conveying machine

FIELD: mechanics.

SUBSTANCE: proposed external support of lifting-and-conveying machine comprises horizontal guide mounted on the latter and incorporating telescoping beam fitted in the said guide to turn about its lengthwise axis. Aforesaid beam incorporates hydraulic jack and second guide. The guides have cylindrical axial cavities with their walls accommodating retainers. Aforesaid beam is supplemented with the second telescoping beam, both representing hollow structures with two guide channels made in their outer surfaces. The guide channel pouter surface represents a part of cylinder with lengthwise axis aligned with that of the seam to form, with aforesaid inner surfaces of cylindrical axial cavities, a telescoping joint. Note that, on the side of aforesaid surfaces, grooves are made their start representing a lengthwise groove receiving retainer pin, changing over into helical groove that makes a quarter of a turn. Note also that aforesaid groove end represents the second lengthwise groove. The cylindrical axial cavities of the guides and telescoping beams accommodate beams drive representing hydraulic cylinders with their one end fastened to the guide, and their second end coupled with telescoping beam.

EFFECT: higher efficiency and reliability.

2 dwg

 

The invention relates to a hoisting means, namely, the extension supports lifting machine (outriggers).

Famous outrigger lifting machine, comprising a housing defined therein retractable beams and extension mechanism beams, comprising a power cylinder, attached to the body with two gears and a traction chain, made of a closed envelope and both sprockets, which are mounted on the outer surface of the chassis outrigger, and retractable beams provided with interacting with chain measured including carriers, which in the case under each branch circuit is made a slot, and each led is equipped with fork covering the chain and pin within the plug (see, e.g., auth. St. USSR №812701, IPC3VS 23/78, bull. No. 10, 1981).

The outrigger (remote support) works as follows. When turning on the power cylinder retractable beam is popped his stem fixedly mounted on the frame of the machine housing. Simultaneously with the beam on the slit moves drove and sets in motion a chain connected to the second planet carrier with a pair of retractable beam, which extends in the opposite direction. After advancement of the beams to the desired flight they stopped automatic clamp. The system is reversible, and when you turn the drive after the release of the beam retracted into a compact position, especia transport envelope hoisting machines. Because the device has one power cylinder acting directly on only one beam, called the drive, if necessary, raise or remove other (non-driven retractable beam) remove the pin from the plug, covering the drive chain, and rotate the handle to auto-commit one of the provisions of the sliding beams. Drive retractable beam extends and retracts by means of a power cylinder. The simultaneous extension of the beams can be made and by means of a power cylinder, and when it is disconnected by turning the handle. Efforts on the handle is insignificant, since the sliding beams rest on the rollers. The chain tension is adjustable tension screw.

The disadvantages of the known outrigger loading adopted for similar, are:

vehicle size is only reduced width, height dimensions unchanged;

when the separation of the processing is done manually, which is not conducive to productivity and reduces the significance of the device.

device busy, which automatically results in a decrease in reliability;

- introduction rollers affects the power mode.

Known external bearing lifting and transport vehicle containing a mounted on the frame of the last horizontal guide, what toroi installed retractable beam with mounted at one end of the latter bearing Jack equipped with an additional support Jack mounted on the elastic end of the extendable beams, a guide fixed in the centre at the transverse beams of the frame can be rotated in the horizontal plane, while the retractable beam is installed in the guide can be rotated about its own axis (see, for example, ABT. St. USSR №1640098, IPC5VS 23/78, bull. No. 13, 1991) prototype.

In the transport position remote support is under the frame. When installing the hoisting means in the working position of the bearing is pulled out from under the frame and using the rotator turns around the frame. The rotation of the beam about its own axis it focuses jacks on the ground and in such position is fixed. In the transport position of the bearing is placed in reverse order.

The technical solution adopted for the prototype, removing some of the disadvantages of similar:

- reduces transport clearance height;

- makes a more favorable power mode beams, because there are no commercials;

decorate the design.

Leaves the presence of parts disadvantages:

when the separation of the processing is done manually, which is not conducive to productivity and reduces the significance of the device.

and acquires new:

with the continuing scope of the device, because it can be used only in non-self-propelled units;

- node dual-axis rotation should be of a sufficient length to ensure the transfer of bending moment with the console part of the sliding beams on the frame, especially when performing work operations (lifting and handling) one Board, which is characteristic of the lifting means, and this, in turn, increases the horizontal dimensions in transport position.

The objective of the invention is to increase productivity, social significance and reliability in operations.

The problem is solved in such a way that the known external bearing lifting and transport vehicle containing a mounted on the frame of the last horizontal guide adding to it with the possibility of rotation about its own longitudinal axis sliding beam with the supporting hydraulic cylinder, provided with a second guide, and the guides are made with a cylindrical axial cavity, the walls of which are placed the clamps, supplemented by the second sliding beam, both made hollow with two tracks on their outer surfaces and the outer surfaces of the tracks are part of a cylinder with a longitudinal axis coinciding with the longitudinal axis of the beam, and is formed with inner surfaces of the cylindrical axial cavities guides telescopic joint, and from these surfaces on the tracks made grooves, starting with a longitudinal groove, in which is entered the working part of the latch extends into the spiral groove constituting a quarter turn round, and ending with the second longitudinal groove, a cylindrical axial cavity of the guides and sliding beams placed drive extension beams in the form of hydraulic cylinders, one end of the fixed for the guide, and the second sliding beam.

Thus, significant differences of the proposed technical solutions are:

the power cylinder is placed inside a retractable beam and one end of the fixed for the guide, and the second sliding beam;

- at least two tracks with the cylindrical outer surfaces of the sliding beams, forming with the inner surfaces of the cavities guides telescopic joint;

- grooves on tracks retractable beams, beginning with longitudinal grooves in one plane, parallel, helical grooves and ends with longitudinal grooves in the other plane, with working part of the latch, mounted on the walls of the guide, included in the groove.

A constructive solution placed inside retractable beams having the ability to rotate around its own longitudinal axis, power hydroc is lindra, one end of the fixed for the guide, and the second sliding beam, is not known from reviewed literature.

The introduction of two tracks with a cylindrical outer surface forming with the inner surfaces of the cavity guides telescopic joint, and the execution of the grooves on the cylindrical surfaces of the sliding beams, beginning with longitudinal grooves in one plane, moving in the helical groove and ending with longitudinal grooves in the other plane, with working part of the latch, mounted on the walls of the guide, and a member of the groove is also not known viewed from patent and scientific literature.

In Fig. 1 shows a remote support lifting the vehicle in the operating position (top view), and Fig. 2 - node retractable beams. Plane y-y figure 1 is a vertical, plane x-x in Fig. 2 - horizontal.

Remote support lifting the vehicle consists of a horizontal frame 1 on which a right angle to the longitudinal axis of the frame 1 fixed rails 2. Guides 2 is made with a cylindrical axial cavity 3. In cavities with the possibility of axial movement posted by retractable beam 4, is made hollow. On the outer surfaces of the sliding beams 4 are two tracks - ver the outermost 5 and bottom 6. The outer surface of the tracks are a part of a cylinder, the longitudinal axis of which coincides with the longitudinal axis of the retractable beam 4, and is formed with inner walls of the cylindrical axial cavity 3 of the guide 2 of the telescopic joint. The beginning of the lower track 6 coincides with the end plane 7 retractable beams 4, and the upper track 5 is displaced along the axis of sliding of the beams 4 by a distance equal to the basis of the termination, the value of which is determined from the strength calculation. To the free ends of the sliding beams 4 fixed in a vertical position supporting the jacks 8, made double chamber. On the inner surfaces of the rails 2 fixed fixed link 9 drive retractable beams 4 with straight-line speed of the rolling element 10 connected to the bogie beam 4, for example a hydraulic cylinder, a sleeve which is fixed on the guide rail 2, and a rod connected to the sliding beam 4. On the cylindrical surfaces of the upper track 5 and the lower track 6 performed the grooves 11, beginning with two longitudinal grooves 12 that extend into the helical grooves 13, which comprise a quarter of a turn round, and ending with two longitudinal grooves 14. The projection length of each of the grooves 11 on the axis of the sliding beams 4 equal step vidivici support jacks 8, determined from the stability condition against the respondents is edyvane lifting the vehicle. On the wall of the guide rail 2 fixed clamps 15. The working portion 16 of the retainer 15 has a cylindrical shape and is included in the groove 11, with the longitudinal axis of the working portion 16 of the latch 15 is perpendicular to the bottom surface of the groove 11.

Remote support lifting the vehicle operates as follows. In the working position, hoisting means mounted on the supporting jacks 8, occupying a vertical position and in aspartam position with extended stems. The weight lifting vehicle and the weight of the lifted load from the frame 1 through the guide 2 is transmitted to the nodes of the telescopic joint, formed by the inner surface of the cylindrical axial cavity 3, the upper track 5, which contact the edge of the guide 2, and the lower track 6, which contact the end plane 7 retractable beams 4. Telescopic joint, the load is transferred to nominated for the desired length of the sliding beams 4 and the support jacks 8. The working portion 16 of the latch 15, which is in the longitudinal groove 12, prevents the possibility of involuntary rotation of the retractable beam 4 due to the action of loads in a horizontal plane relative to the guide rail 2, which would be an emergency situation. For translation lifting-vehicle in transport on agenie support the hydraulic Jack 8 is removed by raspor, for example, the opening of the piston cavity and the working fluid in the rod cavity, and weight lifting and transport means through the frame 1 is transmitted to the chassis (not shown). The rods support the hydraulic Jack 8 is fully retracted, then driven movable element 10 of the actuator extension beams. Created them a force is applied from one side to the sliding beam 4, and on the other hand through a fixed link 9 to the guide 2. After overcoming the friction force in the telescopic joint retractable beam 4 starts axial movement, since the longitudinal groove 12 of the groove 11 is made along the longitudinal axis of the sliding beams 4 and entered the working portion 16 of the latch 15, fixedly mounted on the rail 2. Upon further movement of the sliding beams 4, the working portion 16 of the latch 15 touches the side screw groove 13 of the grooves 11 and due to this, together with the translational motion starts rotating retractable beams 4 together with the control jacks 8 about its own longitudinal axis. After turning a quarter turn of a coil, i.e. the anglethe working portion 16 of the latch 15 is in the longitudinal groove 14 and further sliding movement of the beam 4 is progressive until it stops working part 16 of the retainer 15 in the end face of the longitudinal grooves 14 or stop the drive. While supporting the hydraulic Jack 8 occupy a horizontal position along the longitudinal axis of the frame 1 lifting the vehicle. Lifting the vehicle ready for transport. To install the hoisting means in the working position of the rolling element 10 is attached to the reverse movement. After overcoming the frictional forces at the telescopic joint retractable beam 4 starts translational movement of the guide 2. At the entrance of the working portion 16 of the retainer 15 in the screw groove 13 of the groove 11 along with the translational movement of the sliding beams 4 starts its rotation together with the control jacks 8 before them in a vertical position that corresponds to the input portion 16 of the retainer 15 in the longitudinal groove 14. The sliding movement of the beam 4 is stopped at the stop of the working portion 16 of the retainer 15 in the end face of the longitudinal grooves 12 or the drive is off, which leads to a stop of movement of the moving element 10. In the working cavity of the support jacks 8 is supplied to the working fluid, chassis (not shown) POPs up and after closure of the working cavities of the support jacks 8 lifting the vehicle ready for cargo operations. For the next cycle, the process is repeated.

When implementing this design solution reduces the dimensions of the car transport in the m position, increased social importance of the outriggers, because completely eliminated manual operation when installing the lifting of the vehicle. In addition, productivity increases due to a significant reduction in installation time reference circuit, since all four (or more) sliding beams are nominated at the same time, all four (or more) simultaneously translate the support jacks in the working position and the transport position is performed on a reversed pattern. The reliability of the device is greatly increased, since there is no any kind of intermediate elements of type circuits, there is no way for the mesh and enter into it, and transfer type "screw-nut" as well-established manufacturing techniques, and a well-developed theory of computation belongs to the reliable items.

Remote support lifting and transport vehicle containing a mounted on the frame of the last horizontal guide adding to it with the possibility of rotation about its own longitudinal axis sliding beam with the supporting hydraulic cylinder, characterized in that it is equipped with the second guide, and the guides are made with a cylindrical axial cavity, the walls of which are placed the clamps, supplemented by the second sliding beam, both made hollow the two tracks on their outer surfaces, moreover, the outer surfaces of the tracks are part of a cylinder with a longitudinal axis coinciding with the longitudinal axis of the beams, and forming with the inner surfaces of the cylindrical axial cavity guides telescopic joint, and from these surfaces on the tracks made grooves, starting with a longitudinal groove, in which is entered the working part of the latch extends into the spiral groove constituting a quarter turn round, and ending with the second longitudinal groove, a cylindrical axial cavity of the guides and sliding beams placed drive extension beams in the form of hydraulic cylinders, one end of the fixed for the guide, and the second is for the retractable beam.



 

Same patents:

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FIELD: transport.

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7 cl, 29 dwg, 19 ex

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FIELD: transport.

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7 cl, 29 dwg, 19 ex

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