CN112850510B

CN112850510B - Supporting system based on crane boom support

Info

Publication number: CN112850510B
Application number: CN202110084144.XA
Authority: CN
Inventors: 刘术红; 杜大海; 周向仁; 王江; 彭宏武
Original assignee: Changsha Yuanqian Machinery Manufacturing Co Ltd
Current assignee: Changsha Yuanqian Machinery Manufacturing Co Ltd
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2021-12-03
Anticipated expiration: 2041-01-21
Also published as: CN112850510A

Abstract

The support system comprises a support arranged at one end of a turning plate close to a turning head and a rotating platform which is rotatably connected to one side of the turning plate far away from the turning head, wherein a suspension arm is hinged to the rotating platform; a first sliding groove is formed in the support, a second sliding groove communicated with the first sliding groove is formed in the sweep, a sliding plate slides in the first sliding groove of the support and the second sliding groove of the sweep, an inserting rod is hinged to one end, close to the head, of the sliding plate, and a containing cavity for the inserting rod to turn is formed in the sweep; the inserting rod is sleeved and connected with a sleeve in a sliding mode, and the sleeve is rotationally connected with the sweeping board; one end of the sliding plate, which is far away from the inserted rod, is rotatably connected with a connecting part, and the other side of the connecting part is rotatably connected with a hydraulic cylinder; when the sliding plate is positioned at one end, far away from the vehicle head, of the second sliding groove, one end, far away from the sliding plate, of the insertion rod is inserted into the ground. This application has the effect that improves automobile body stability.

Description

Supporting system based on crane boom support

Technical Field

The application relates to the field of crane equipment, in particular to a supporting system based on a crane boom support.

Background

At present, a crane is needed to hoist or transport large objects, and the crane has a plurality of purposes including hoisting equipment, emergency rescue, hoisting and rescue. Most cranes today include a carbody, which facilitates the movement of the crane by driving the crane, which moves the weight vertically or horizontally.

In the related art: the crane comprises a crane body, and the crane body comprises a vehicle plate and a vehicle head. The car body is rotatably connected with a rotating platform, the rotating platform is hinged with a suspension arm, and the car plate is provided with a support for supporting the suspension arm. The rotating platform is provided with a hydraulic cylinder, the hydraulic cylinder comprises a cylinder body and a piston rod, the cylinder body is hinged with the rotating platform, and the piston rod is hinged with the suspension arm. The rotating table is also provided with a motor and a winding roller, and a pull rope is wound on the winding roller. The vehicle body is moved to a designated place, the piston rod extends out through the hydraulic pump on the vehicle body to push the suspension arm to overturn, and at the moment, the suspension arm is separated from the support. After the suspension arm turns over to a certain angle, the pull rope is connected with the weight, the motor is started, the motor drives the winding roller to wind the pull rope, and the weight is pulled by the pull rope to rise.

In view of the above-mentioned related art, the inventor believes that there is a defect that when the work site rains or snows and the ground is inclined, the ground is smooth, and the vehicle body is unstably fixed when a heavy object is lifted.

Disclosure of Invention

In order to improve the stability of the vehicle body, the application provides a braced system based on crane boom support.

The application provides a braced system based on hoist davit support adopts following technical scheme:

a supporting system based on a crane boom support comprises a support arranged at one end, close to a vehicle head, of a vehicle plate and a rotating platform which is rotatably connected to one side, far away from the vehicle head, of the vehicle plate, wherein a boom is hinged to the rotating platform, and a hydraulic cylinder for overturning the boom is arranged between the boom and the rotating platform; a placing cavity for placing the suspension arm is formed in the support; a first sliding groove is formed in the support, a second sliding groove communicated with the first sliding groove is formed in the sweep, a sliding plate slides in the first sliding groove of the support and the second sliding groove of the sweep, an inserting rod is hinged to one end, close to the head, of the sliding plate, and a containing cavity for the inserting rod to turn is formed in the sweep; the inserting rod is sleeved and connected with a sleeve in a sliding mode, and the sleeve is located in an accommodating cavity of the vehicle board and is connected with the vehicle board in a rotating mode; one end of the sliding plate, which is far away from the inserted rod, is rotatably connected with a connecting part, and the other side of the connecting part is rotatably connected with a hydraulic cylinder; when the sliding plate is positioned at one end, far away from the vehicle head, of the second sliding groove, one end, far away from the sliding plate, of the insertion rod is inserted into the ground.

Through adopting above-mentioned technical scheme, under the natural state, the davit is located placing the chamber of support, and the slide is located the one end that first spout is close to the locomotive, and the inserted bar is located completely and holds the intracavity. When the vehicle moves to the inclined ground and starts to work, the hydraulic pump on the vehicle board provides power for the hydraulic cylinder, the hydraulic cylinder pushes the suspension arm to turn upwards, and at the moment, the hydraulic cylinder turns along with the suspension arm. The pneumatic cylinder drives connecting portion and orders about the slide to the one side removal of keeping away from the locomotive, and the one end on ground is kept away from to the slide pulling inserted bar, and the inserted bar rotates along the axis that the rotation of sleeve and sweep is connected this moment, and the inserted bar slides in the sleeve simultaneously, and the one end that the slide was kept away from to the inserted bar is the curve and slides to ground gradually. When the hydraulic cylinder turns over to a certain angle, the sliding plate moves to one end, away from the vehicle head, of the second sliding groove, and the end, away from the sliding plate, of the insertion rod is inserted into soil. When the suspension arm is lifted, the inserted link is automatically inserted into the ground, and the inserted link is coated by soil to reduce the possibility of horizontal movement of the inserted link; when the vehicle meets an inclined plane, the possibility of vehicle landslide is reduced through the resistance of ground soil to the inserted link; when the suspension arm lifts a heavy object, the possibility of vehicle body overturning is reduced and the possibility of casualties is reduced by inserting the insertion rod and the ground; the stability of the vehicle body is improved by inserting the inserted bar into the ground.

Optionally, the connecting part comprises a connecting assembly and a clamping assembly, the connecting assembly comprises a first connecting rod and a second connecting rod, the first connecting rod is connected with the second connecting rod, one end of the first connecting rod, which is far away from the second connecting rod, is rotatably connected with the sliding plate, one end of the second connecting rod, which is far away from the first connecting rod, is connected with the clamping assembly, and the clamping assembly is connected with the cylinder body of the hydraulic cylinder; and a buffer component is arranged between the first connecting rod and the second connecting rod.

Through adopting above-mentioned technical scheme, start the pneumatic cylinder, the pneumatic cylinder upset, the cylinder body of pneumatic cylinder drives second connecting rod and head rod synchronous motion, and the head rod drives the slide and slides in first spout and second spout. After the sliding plate slides to the end, far away from the crane head, of the second sliding groove, the hydraulic cylinder can continue to turn over through the buffering assembly, the turning angles of the hydraulic cylinder and the suspension arm are increased, and the working range of the crane is widened.

Optionally, the buffering assembly comprises a telescopic rod, the telescopic rod comprises a sleeve and an inner tube, a limiting block is arranged at one end of the inner tube, which is located in the sleeve, and a limiting groove for the limiting block to slide is formed in the inner peripheral wall of the sleeve.

Through adopting above-mentioned technical scheme, start hydraulic cylinder, overturn pneumatic cylinder and davit to the biggest angle, telescopic link to the maximum length this moment, the stopper pulling sleeve pipe of telescopic link. The first connecting rod, the second connecting rod and the telescopic rod pull the sliding plate. After the inserted link is inserted into the soil, the suspension arm is adjusted to a proper position, at the moment, the telescopic link is shortened, the inner pipe slides in the sleeve, the inserted link is surrounded by the soil, and the position of the sliding plate is fixed. When the boom descends to a certain angle, the telescopic rod cannot be compressed continuously, the inner pipe pushes the sleeve, and the sliding plate moves towards the direction of the vehicle head. The angle of the self-use movement of the suspension arm is increased through the telescopic rod.

Optionally, the buffer assembly further comprises a first extension spring, the first extension spring is arranged in the sleeve, and two ends of the first extension spring are connected with the limiting block and the inner bottom wall of the sleeve far away from the telescopic rod respectively.

Through adopting above-mentioned technical scheme, the davit overturns to certain angle, drives the slide through first extension spring pulling head rod and removes the one end of keeping away from the locomotive to the second spout, and the inserted bar is arranged in soil. And the suspension arm is continuously turned, the sliding plate is limited by the second sliding groove and cannot continuously move, and the first extension spring is extended at the moment. Through first extension spring's setting, directly with the davit overturn to the assigned position can, need not to overturn earlier to the maximum angle and then overturn to the assigned position, simplify work step, improve work efficiency.

Optionally, the clamping component comprises a clamping block and a disc, the clamping block is hinged to one end, away from the first connecting rod, of the second connecting rod, the disc is sleeved on the cylinder body of the hydraulic cylinder, and a clamping groove for sliding connection of the disc is formed in the clamping block.

By adopting the technical scheme, after the suspension arm lifts a heavy object, the rotating platform rotates, the rotating platform drives the hydraulic cylinder to move synchronously, and the disc on the hydraulic cylinder is separated from the clamping groove of the clamping block. After the work is finished, the suspension arm is put down and falls into the placing cavity of the support, and the clamping block is manually connected with the disc. Through the arrangement of the disc and the clamping block, the rotating platform, the suspension arm and the hydraulic cylinder rotate on the vehicle plate together, and the working range is enlarged.

Optionally, the clamping assembly further includes a plug pin and a second extension spring, the disc is provided with a jack for the plug pin to be inserted, the plug pin penetrates through and is slidably connected to the fixture block, one end of the plug pin penetrating through the fixture block is inserted into the jack of the disc, the second extension spring is sleeved on the plug pin, one end of the second extension spring is connected to one end of the plug pin far away from the disc, and the other end of the second extension spring is connected to the outer side wall of the fixture block; the end face of the plug pin inserted into the jack is arranged in a spherical shape; when the disc moves in the direction far away from the vehicle head, the plug pins are always inserted into the jacks of the disc and pull the connecting assembly and the sliding plate to move.

By adopting the technical scheme, the bolt is always inserted into the jack of the disc under the action of the second extension spring, so that the disc is not easy to separate from the clamping groove of the clamping block. When the hydraulic cylinder drives the disc to move towards the direction far away from the vehicle head, the clamping block is driven to drive the connecting component and the sliding plate to move towards one side far away from the vehicle head through the insertion connection of the bolt and the disc. When the rotary table is rotated, because the connecting assembly cannot rotate, a large shearing force can be generated, the inner peripheral wall of the jack is matched with the spherical surface of the plug pin, the plug pin is pushed to be far away from the disc, and the disc is separated from the clamping groove of the clamping block. The connection stability of the fixture block and the disc is improved when the rotating table does not rotate through the bolt and the second extension spring.

Optionally, a limiting assembly for fixing the angle of the first connecting rod is arranged on the sliding plate; and a friction pad is arranged on the surface of the clamping block, which is in contact with the second connecting rod, and the clamping block is fixed with the relative position of the second connecting rod when not subjected to external force.

Through adopting above-mentioned technical scheme, rotate the revolving stage, the disc breaks away from with the fixture block, through the angle of the fixed head rod of spacing subassembly, through the angle of friction pad restriction fixture block. Namely, after the fixture block is separated from the disc, the position of the fixture block is unchanged relative to the vehicle body. After the crane finishes working, the suspension arm descends to enable the disc to be in a horizontal position capable of being matched with the clamping groove of the clamping block, the rotating table rotates, the disc enters the clamping groove of the clamping block, the spherical surface of the plug pin is matched with the outer peripheral wall of the disc, and the plug pin falls into the plug hole of the disc. The position of the clamping block is limited through the limiting assembly and the friction pad, the disc and the clamping block are reconnected after the position of the suspension arm is adjusted, the disc and the clamping block do not need to be manually connected, labor is saved, and operation is convenient.

Optionally, the limiting assembly comprises a friction disc and a friction seat, the friction disc is coaxially arranged on a hinge shaft of the second connecting rod hinged to the sliding plate, and the friction disc is connected with the second connecting rod; the friction seat is arranged on the sliding plate, and the friction disc is arranged in the friction seat in a penetrating mode and is connected with the friction seat in a sliding mode; when the first connecting rod is free from external force, the position between the first connecting rod and the sliding plate is relatively fixed.

By adopting the technical scheme, when the suspension arm is overturned, the suspension arm drives the connecting assembly to move, the angle between the first connecting rod and the sliding plate in the connecting assembly is changed, the hinged shaft of the first connecting rod drives the friction disc to rotate, and the friction disc is rubbed with the friction seat. After the disk is separated from the clamping block, the angle of the first connecting rod is fixed through the friction force of the friction disk and the friction seat. The angle of the first connecting rod is fixed by the friction disc and the friction seat, so that the subsequent connection of the disc and the clamping block is facilitated, and the limiting assembly is simple in structure and convenient to replace.

Optionally, a compression spring is connected to the vehicle plate, and one end of the compression spring, which is far away from the vehicle plate, is connected to the second connecting rod; the elasticity of the compression spring is offset with the gravity of the connecting component.

Through adopting above-mentioned technical scheme, support coupling assembling through compression spring, reduce the frictional force that needs bear between friction disk and the friction seat, improve spacing subassembly's life.

Optionally, a pull rope is arranged between the second connecting rod and the vehicle plate, and the pull rope is respectively connected with the second connecting rod and the vehicle plate; when the sliding plate is positioned at one end of the second sliding groove far away from the vehicle head, the pull rope is in a stretched straight state.

Through adopting above-mentioned technical scheme, compression spring uses elasticity after the repetition and weakens, uses the spring of great elasticity to through the setting of stay cord, with coupling assembling's the restriction of the maximum inclination, restriction compression spring's maximum stroke guarantees that compression spring can not lead to the fact the influence to coupling assembling. Reduce the demand to compression spring through the stay cord, it is long when improving compression spring's use simultaneously.

In summary, the present application includes at least one of the following beneficial technical effects:

1. a first sliding groove is arranged in the support, a second sliding groove communicated with the first sliding groove is arranged on the vehicle board, the sliding plate slides in the first sliding groove and the second sliding groove, one end of the sliding plate is connected with an inserting rod, and a sleeve is rotationally connected in the vehicle board; under the natural state, the davit is located placing the chamber of support, and the slide is located the one end that first spout is close to the locomotive, and the inserted bar is located completely and holds the intracavity. When the vehicle moves to the inclined ground and starts to work, the hydraulic pump on the vehicle board provides power for the hydraulic cylinder, the hydraulic cylinder pushes the suspension arm to turn upwards, and at the moment, the hydraulic cylinder turns along with the suspension arm. The pneumatic cylinder drives connecting portion and orders about the slide to the one side removal of keeping away from the locomotive, and the one end on ground is kept away from to the slide pulling inserted bar, and the inserted bar rotates along the axis that the rotation of sleeve and sweep is connected this moment, and the inserted bar slides in the sleeve simultaneously, and the one end that the slide was kept away from to the inserted bar is the curve and slides to ground gradually. When the hydraulic cylinder turns over to a certain angle, the sliding plate moves to one end, away from the vehicle head, of the second sliding groove, and the end, away from the sliding plate, of the insertion rod is inserted into soil. When the suspension arm is lifted, the inserted link is automatically inserted into the ground, and the possibility of vehicle landslide is reduced by coating the inserted link with soil;

2. the clamping component comprises a clamping block and a disc; when the suspension arm lifts a heavy object, the rotating platform rotates, the rotating platform drives the hydraulic cylinder to move synchronously, and the disc on the hydraulic cylinder is separated from the clamping groove of the clamping block. After the work is finished, the suspension arm is put down and falls into the placing cavity of the support, and the clamping block is manually connected with the disc. Through the arrangement of the disc and the clamping block, the rotating platform, the suspension arm and the hydraulic cylinder rotate on the vehicle plate together, so that the working range is enlarged;

3. the limiting assembly comprises a friction disc and a friction seat, when the suspension arm overturns, the suspension arm drives the connecting assembly to move, an angle between a first connecting rod in the connecting assembly and the sliding plate is changed, a hinge shaft of the first connecting rod drives the friction disc to rotate, and the friction disc is in friction with the friction seat. After the disk is separated from the clamping block, the angle of the first connecting rod is fixed through the friction force of the friction disk and the friction seat. The angle of the first connecting rod is fixed by the friction disc and the friction seat, so that the subsequent connection of the disc and the clamping block is facilitated, and the limiting assembly is simple in structure and convenient to replace.

Drawings

FIG. 1 is a schematic structural diagram of a supporting system based on a crane boom support according to an embodiment of the present application;

FIG. 2 is a schematic partial cross-sectional view of the crane boom stand based support system shown in FIG. 1;

FIG. 3 is a schematic partial cross-sectional view of the support system shown in FIG. 2;

fig. 4 is an enlarged schematic view of a portion a shown in fig. 2.

Description of reference numerals: 1. turning a plate; 2. a headstock; 3. a rotating table; 4. a suspension arm; 5. a hydraulic cylinder; 51. a cylinder body; 52. a piston rod; 6. a support; 7. a placement chamber; 8. a slide plate; 9. inserting a rod; 10. a first chute; 11. a second chute; 12. a sleeve; 13. a first connecting rod; 14. a hinged seat; 15. a second connecting rod; 16. a buffer assembly; 161. a telescopic rod; 1611. a sleeve; 1612. an inner tube; 162. a limiting block; 163. a limiting groove; 164. a first extension spring; 17. a clamping assembly; 171. a disc; 172. a clamping block; 173. a bolt; 174. a baffle plate; 175. a second extension spring; 18. a hinge slot; 19. a jack; 20. a friction pad; 21. a limiting component; 211. a friction disk; 212. a friction seat; 22. a compression spring; 23. pulling a rope; 24. a receiving cavity.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

Referring to fig. 1, the crane comprises a crane body, the crane body comprises a rectangular vehicle plate 1 and a vehicle head 2, one end, far away from the vehicle head 2, of the upper surface of the vehicle plate 1 is rotatably connected with a rotating platform 3, and a suspension arm 4 is hinged to the rotating platform 3. The rotating table 3 is further provided with a hydraulic cylinder 5, the hydraulic cylinder 5 comprises a cylinder body 51 and a piston rod 52, the cylinder body 51 is hinged with the rotating table 3, the piston rod 52 is connected in the cylinder body 51 in a sliding mode, and one end, far away from the cylinder body 51, of the piston rod 52 is hinged with the suspension arm 4. The vehicle plate 1 is provided with a hydraulic pump. The hydraulic pump provides power, and a piston rod 52 of the hydraulic cylinder 5 extends out of the cylinder body 51 to push the boom 4 to lift.

The embodiment of the application discloses braced system based on hoist davit support, refer to fig. 1 and 2, the welding of the one end that sweep 1 upper surface is close to locomotive 2 has support 6, and support 6 is the setting of rectangular block, and the chamber 7 of placing of rectangle is seted up to support 6 upper surface, and when davit 4 was the level, 4 joints of davit were in support 6 place the chamber 7 in. A sliding plate 8 is arranged in the support 6, the sliding plate 8 is hinged with an insertion rod 9, and when the suspension arm 4 rises, the suspension arm 4 drives the insertion rod 9 to be inserted into soil.

The lower surface of the support 6 is provided with a first sliding chute 10 with the length direction identical to that of the sweep 1, the upper surface of the sweep 1 is provided with a second sliding chute 11, the first sliding chute 10 is communicated with the second sliding chute 11, and the cross section of the sliding plate 8 is rectangular and slides in the second sliding chute 11 and the first sliding chute 10.

The inserted bar 9 hinges the one end that is close to locomotive 2 on the slide 8 lower surface, and inserted bar 9 is cylindrical, and the one end that slide 8 was kept away from to inserted bar 9 is the circular cone setting. The upper surface of the sweep 1 is provided with an accommodating cavity 24 penetrating through the sweep 1. The accommodating cavity 24 is used for overturning the inserted rod 9.

Referring to fig. 2 and 3, a sleeve 12 is rotatably connected in the accommodating cavity 24 of the vehicle board 1, and the axes of rotation of the sleeve 12 and the accommodating cavity 24 are parallel to the upper surface of the vehicle board 1 and perpendicular to the length direction of the boom 4. The inserted link 9 is inserted into the sleeve 12 and slidably connected with the sleeve 12. The sliding plate 8 is moved, the sliding plate 8 drives the inserted link 9 to turn, the inserted link 9 slides in the sleeve 12, and the sleeve 12 rotates. When the sliding plate 8 is located at one end of the second sliding chute 11 far away from the vehicle head 2, the sleeve 12 rotates but does not displace, the inserted link 9 slides in the sleeve 12, and one end of the inserted link 9 far away from the sliding plate 8 is inserted into the ground.

One end of the sliding plate 8, which is far away from the insertion rod 9, is provided with a connecting part, the connecting part comprises a connecting assembly, and the connecting assembly comprises a first connecting rod 13. The welding of 8 upper surfaces of slide and the one end of keeping away from locomotive 2 has articulated seat 14, and the one end of head rod 13 is provided with the articulated shaft, and the articulated shaft and the articulated seat 14 of head rod 13 rotate to be connected. The end of the first connecting rod 13 remote from the slide 8 is provided with a damping assembly 16. The end of the cushion assembly 16 remote from the first connecting rod 13 is provided with a second connecting rod 15, and the second connecting rod 15 is connected with the cylinder body 51 of the hydraulic cylinder 5. The hydraulic cylinder 5 pushes the boom 4 to overturn and simultaneously the hydraulic cylinder 5 overturns, and the cylinder body 51 of the hydraulic cylinder 5 pulls the first connecting rod 13 and the second connecting rod 15. The second connecting rod 15 pulls the sliding plate 8 to slide in the first sliding chute 10 and the second sliding chute 11.

The damping assembly 16 comprises a telescopic rod 161, the telescopic rod 161 comprises a sleeve 1611, and the sleeve 1611 is perpendicularly welded to the end face of the first connecting rod 13 far away from the sliding plate 8. The end surface of the sleeve 1611 far away from the sliding plate 8 is arranged in an opening manner, and an inner pipe 1612 is connected in the sleeve 1611 in a sliding manner. The end of the inner tube 1612 remote from the slide plate 8 is welded to the end face of the second connecting rod 15 remote from the boom 4. When the suspension arm 4 is overturned, the second connecting rod 15 is driven to pull the sliding plate 8 to slide in the sliding sleeve;

one end of the inner tube 1612, which is located in the sleeve 1611, is coaxially welded with a disc 171-shaped limiting block 162, the inner circumferential wall of the sleeve 1611 is provided with a limiting groove 163, and the limiting block 162 slides in the limiting groove 163. The inner tube 1612 cannot be separated from the sleeve 1611 by the arrangement of the limiting block 162.

A first extension spring 164 is coaxially disposed in the sleeve 1611, one end of the first extension spring 164 is welded to one end of the limiting block 162 far away from the inner tube 1612, and the other end is welded to the inner bottom wall of the sleeve 1611. The first and second connecting

rods

13 and 15 are always pulled close by the first tension spring 164.

Referring to fig. 3 and 4, a clamping assembly 17 is connected to the end of the second connecting rod 15 near the boom 4. The clamping assembly 17 comprises a disc 171 coaxially welded on the cylinder body 51 of the hydraulic cylinder 5, and the outer peripheral wall of the disc 171 is arranged in an arc surface. One end, far away from the first connecting rod 13, of the second connecting rod 15 is provided with a hinge groove 18, a fixture block 172 is rotatably connected in the hinge groove 18, two opposite sides of the fixture block 172 are welded with rotating shafts, the axis of each rotating shaft is horizontally arranged, and each rotating shaft penetrates through the second connecting rod 15 and is rotatably connected with the second connecting rod 15. The end of the latch 172 away from the second connecting rod 15 is provided with a slot in which the disc 171 is slidably connected.

A cylindrical plug 173 is arranged on the side wall of the fixture block 172 which is perpendicular to the axis of the disc 171 and away from the ground, and a disc 171-shaped baffle 174 is coaxially welded at one end of the plug 173 away from the fixture block 172. A second tension spring 175 sleeved on the latch 173 is disposed between the latch 172 and the stopper 174, one end of the second tension spring 175 is welded to the stopper 174, and the other end is welded to the latch 172. The side wall of the disc 171 near the latch 173 is provided with a jack 19, and the latch 173 is inserted into the jack 19. The end surface of the latch 173 inserted into the insertion hole 19 is spherically disposed. The rotating table 3 rotates to drive the hydraulic cylinder 5 and the disc 171 to move, the spherical surface of the latch 173 is engaged with the inner peripheral wall of the insertion hole 19 to drive the latch 173 to be away from the disc 171, and at this time, the second tension spring 175 is stretched.

Two friction pads 20 are respectively bonded to two side walls of the latch 172 close to the rotating shaft, and the side walls of the two friction pads 20 far away from each other are abutted against the two side walls of the hinge slot 18 of the latch 172 close to the rotating shaft. When the latch 172 is only under the action of gravity and is not subjected to other external forces, the relative position of the latch 172 and the second connecting rod 15 is fixed through the friction pad 20, that is, the height and the angle of the latch 172 are constant.

The upper surface of slide 8 is provided with spacing subassembly 21, and spacing subassembly 21 includes friction disc 211, and the one end of the articulated shaft that first connecting rod 13 and slide 8 are connected is welded to the coaxial of friction disc 211, and the upper surface welding of slide 8 has friction seat 212, and friction disc 211 wears to locate in the friction seat 212 and is connected with friction seat 212 interference. When the connecting assembly is free from external force, the position between the first connecting rod 13 and the sliding plate 8 is relatively fixed.

The upper surface of sweep 1 is provided with compression spring 22, and compression spring 22 is located between sweep 1 and second connecting rod 15, and compression spring 22's one end and the lateral wall welding that second connecting rod 15 is close to ground, the other end and the upper surface welding of sweep 1. A compression spring 22 supports the connection assembly.

A pull rope 23 is arranged between the vehicle plate 1 and the second connecting rod 15, one end of the pull rope 23 is fixed on one side of the second connecting rod 15 close to the compression spring 22, and the other end of the pull rope 23 is fixed with the vehicle plate 1. The compression spring 22 is sleeved with the pull rope 23, and when the sliding plate 8 is located at one end of the second sliding chute 11 far away from the first sliding chute 10, the inserted link 9 is inserted into the soil, and the pull rope 23 is in a stretched state, that is, the tension of the pull rope 23 is maximum.

The implementation principle of the supporting system based on the crane boom support in the embodiment of the application is as follows: naturally, the plunger 9 is completely located inside the receiving cavity 24. When the crane moves to a designated position of a working site, power is provided by a hydraulic pump on the vehicle plate 1, a piston rod 52 of the hydraulic cylinder 5 extends out of a cylinder body 51, and the piston rod 52 pushes the suspension arm 4 to turn; the suspension arm 4 overturns and simultaneously the hydraulic cylinder 5 overturns, the hydraulic cylinder 5 drives the rotary table to move towards one side far away from the vehicle head 2, the plug 173 is inserted into the insertion hole 19 in the disc 171 to fix the disc 171 and the fixture block 172, the disc 171 drives the fixture block 172 and the second connecting rod 15 to move, the first connecting rod 13 is pulled to synchronously move through the first extension spring 164 between the inner pipe 1612 and the sleeve 1611, and the first connecting rod 13 pulls the sliding plate 8 to move to one end, far away from the vehicle head 2, of the second sliding chute 11. The slide plate 8 drives the inserted link 9 to move, and the inserted link 9 slides in the sleeve 12 and rotates along the sleeve 12. The end of the plunger 9 remote from the slide plate 8 is inserted into the ground.

Continuing to invert the boom 4, the second link 15 moves the inner tube 1612 away from the sleeve 1611, at which time the first extension spring 164 is extended.

When the rotating table 3 is required to rotate, the sliding plate 8 is pulled to one end, far away from the vehicle head 2, of the second sliding groove 11, the rotating table 3 is rotated, the rotating table 3 drives the hydraulic cylinder 5 to move together with the disc 171, the inner peripheral wall of the insertion hole 19 of the disc 171 is matched with the spherical surface of the plug 173, the plug 173 is separated from the disc 171, and the disc 171 is separated from the clamping groove of the clamping block 172. The angle between the coupling assembly and the vehicle panel 1 is fixed by the friction discs 211 and the friction seats 212. The angle between the latch 172 and the second connecting rod 15 is fixed by the friction pad 20.

When the boom 4 is retracted after the operation is finished, the disc 171 of the boom 4 corresponds to the clamping groove of the clamping block 172, the rotating table 3 rotates, the disc 171 enters the clamping groove, the arc surface of the disc 171 is matched with the spherical surface of the plug 173, and the spherical surface of the plug 173 is abutted against the surface of the disc 171 close to the plug 173. After the rotary table 3 is rotated to a designated position, the latch 173 is latched into the receptacle 19 by the first tension spring 164. When the suspension arm 4 is lowered, the suspension arm 4 pushes the first connecting rod 13 and the inner tube 1612, after the first tension spring 164 is completely compressed, the inner tube 1612 pushes the sleeve 1611, the sleeve 1611 drives the sliding plate 8 to slide towards one side close to the vehicle head 2, and at the moment, the inserted rod 9 is retracted from the soil. When the slide plate 8 is located at one end of the first sliding chute 10 close to the vehicle head 2, the inserted link 9 is completely located in the accommodating cavity 24, and the suspension arm 4 is horizontal and partially located in the placing cavity 7 of the bracket 6.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A supporting system based on a crane boom support comprises a support (6) arranged at one end, close to a vehicle head (2), of a vehicle plate (1) and a rotating platform (3) rotatably connected to one side, far away from the vehicle head (2), of the vehicle plate (1), a boom (4) is hinged to the rotating platform (3), and a hydraulic cylinder (5) used for overturning the boom (4) is arranged between the boom (4) and the rotating platform (3); the method is characterized in that: a placing cavity (7) for placing the suspension arm (4) is formed in the support (6); a first sliding groove (10) is formed in the support (6), a second sliding groove (11) communicated with the first sliding groove (10) is formed in the sweep (1), a sliding plate (8) slides in the first sliding groove (10) of the support (6) and the second sliding groove (11) of the sweep (1), an inserting rod (9) is hinged to one end, close to the headstock (2), of the sliding plate (8), and a containing cavity (24) for the inserting rod (9) to turn is formed in the sweep (1); the inserting rod (9) is sleeved and connected with a sleeve (12) in a sliding mode, and the sleeve (12) is located in an accommodating cavity (24) of the vehicle plate (1) and is rotationally connected with the vehicle plate (1); one end of the sliding plate (8) far away from the inserted rod (9) is rotatably connected with a connecting part, and the other side of the connecting part is rotatably connected with the hydraulic cylinder (5); a connecting portion for connection; when the sliding plate (8) is positioned at one end, far away from the vehicle head (2), of the second sliding groove (11), one end, far away from the sliding plate (8), of the insertion rod (9) is inserted into the ground.

2. A crane boom stand based support system according to claim 1, characterized in that: the connecting part comprises a connecting assembly and a clamping assembly (17), the connecting assembly comprises a first connecting rod (13) and a second connecting rod (15), the first connecting rod (13) is connected with the second connecting rod (15), one end, away from the second connecting rod (15), of the first connecting rod (13) is rotatably connected with the sliding plate (8), one end, away from the first connecting rod (13), of the second connecting rod (15) is connected with the clamping assembly (17), and the clamping assembly (17) is connected with a cylinder body (51) of the hydraulic cylinder (5); a buffer component (16) is arranged between the first connecting rod (13) and the second connecting rod (15).

3. A crane boom stand based support system according to claim 2, characterized in that: buffer unit (16) include telescopic link (161), telescopic link (161) include sleeve pipe (1611) and inner tube (1612), the one end that inner tube (1612) are located sleeve pipe (1611) is provided with stopper (162), confession stopper (162) gliding spacing groove (163) have been seted up to sleeve pipe (1611) internal perisporium.

4. A crane boom stand based support system according to claim 3, characterized in that: the buffer assembly (16) further comprises a first extension spring (164), the first extension spring (164) is arranged in the sleeve (1611), and two ends of the first extension spring (164) are respectively connected with the limiting block (162) and the inner bottom wall of the sleeve (1611) far away from the telescopic rod (161).

5. A crane boom stand based support system according to claim 2, characterized in that: clamping subassembly (17) include fixture block (172) and disc (171), fixture block (172) articulate the one end of keeping away from head rod (13) in second connecting rod (15), cylinder body (51) of pneumatic cylinder (5) are located in disc (171) cover, offer the draw-in groove that supplies disc (171) sliding connection on fixture block (172).

6. A crane boom stand based support system according to claim 5, characterized in that: the clamping assembly (17) further comprises a plug pin (173) and a second extension spring (175), a jack (19) for the plug pin (173) to be plugged is formed in the disc (171), the plug pin (173) penetrates through and is slidably connected to the fixture block (172), one end of the plug pin (173) penetrating through the fixture block (172) is plugged into the jack (19) of the disc (171), the second extension spring (175) is sleeved on the plug pin (173), one end of the second extension spring (175) is connected with one end, far away from the disc (171), of the plug pin (173), and the other end of the second extension spring is connected with the outer side wall of the fixture block (172); the end face of the plug pin (173) inserted into the jack (19) is arranged in a spherical shape; when the disc (171) moves in the direction away from the vehicle head (2), the plug pin (173) is always inserted into the insertion hole (19) of the disc (171) and pulls the connecting assembly and the sliding plate (8) to move.

7. A crane boom stand based support system according to claim 6, characterized in that: the sliding plate (8) is provided with a limiting component (21) for fixing the angle of the first connecting rod (13); the friction pad (20) is arranged on the surface of the clamping block (172) contacting with the second connecting rod (15), and the clamping block (172) is fixed with the relative position of the second connecting rod (15) when no external force is applied.

8. A crane boom stand based support system according to claim 7, characterized in that: the limiting assembly (21) comprises a friction disc (211) and a friction seat (212), the friction disc (211) is coaxially arranged on a hinge shaft of the second connecting rod (15) hinged with the sliding plate (8), and the friction disc (211) is connected with the second connecting rod (15); the friction seat (212) is arranged on the sliding plate (8), and the friction disc (211) is arranged in the friction seat (212) in a penetrating mode and is connected with the friction seat (212) in a sliding mode; when the first connecting rod (13) is free from external force, the position between the first connecting rod (13) and the sliding plate (8) is relatively fixed.

9. A crane boom stand based support system according to claim 8, characterized in that: a compression spring (22) is connected to the sweep (1), and one end, far away from the sweep (1), of the compression spring (22) is connected with a second connecting rod (15); the elastic force of the compression spring (22) counteracts the gravity of the connecting component.

10. A crane boom stand based support system according to claim 9, characterized in that: a pull rope (23) is arranged between the second connecting rod (15) and the vehicle plate (1), and the pull rope (23) is respectively connected with the second connecting rod (15) and the vehicle plate (1); when the sliding plate (8) is positioned at one end of the second sliding groove (11) far away from the vehicle head (2), the pull rope (23) is in a stretched straight state.