CN112978592A

CN112978592A - Crane counterweight equipment

Info

Publication number: CN112978592A
Application number: CN202110039946.9A
Authority: CN
Inventors: 肖志刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-06-18

Abstract

The invention discloses crane counterweight equipment which comprises a base, wherein an adjusting device is arranged at the top of the base, four groups of supporting columns are fixedly connected to the top end of the base, supporting plates are fixedly connected to the top ends of the four groups of supporting columns, sliding grooves are formed in the left side and the right side of the top of each supporting plate, sliding blocks are embedded in the two groups of sliding grooves, and clamping protection devices are arranged on the left side and the right side of a supporting moving plate. The beneficial effects are that: the effectual equipment of having guaranteed can realize that good horizontal focus is adjusted and the tight protection of balancing weight clamp, and equipment mechanism can fine adjust in whole course of the work to reach balancing weight and transport object balance adjustment, saved staff's time, utilize the progressive cooperation of a plurality of structures simultaneously, realize that the balancing weight presss from both sides tight protection, ensure staff's life safety, the potential safety hazard of exclusion device improves the security of device, thereby make equipment more possess the practicality.

Description

Crane counterweight equipment

Technical Field

The invention relates to the field of size plates, in particular to crane counterweight equipment.

Background

The crane is a multi-action crane for vertically lifting and horizontally carrying heavy objects within a certain range, the crane is widely used in high buildings, meanwhile, the crane is generally provided with a counterweight device before use, the counterweight device is used for assisting the vertical lifting and the horizontal carrying of the objects, the counterweight device mainly has the function of balancing the objects carried on the crane and preventing the crane from tilting, the counterweight device is generally connected with one carrying end of the crane through a connecting device, and then a counterweight block is added on the counterweight device so as to facilitate the carrying of the objects to reach the balancing device, aiming at the counterweight device of the crane disclosed by the publication No. CN103539025B and the crane with the counterweight device, the anti-tilting moment is changed by changing the position of the gravity center of the counterweight relative to the crane, the locking device can enable the counterweight to keep a static state at the preset angle, the gravity center of the counterweight is prevented from moving back, and potential safety hazards, thereby under the circumstances that does not increase counter weight, the operating performance that the hoist hung a heavy has been strengthened, the stability of hoist, the security has been improved, nevertheless the staff sometimes through adding the balancing weight difficult with transport object formation balance, lead to work unable going on, extravagant staff time, thereby the practicality of device has been reduced, stack when higher as the balancing weight simultaneously, the balancing weight takes place easily to empty, the life safety of staff has threatened, thereby the security of device has been reduced, the hoist is when promoting and the horizontal transport object, the balancing weight takes place easily to rock, make the device have the potential safety hazard.

An effective solution to the problems in the related art has not been proposed yet.

Disclosure of Invention

The invention provides a crane counterweight device aiming at the problems in the related art, and aims to overcome the technical problems in the prior related art.

Therefore, the invention adopts the following specific technical scheme:

the utility model provides a hoist counter weight equipment, includes the base, the base top is provided with adjusting device, four group's support columns of base top fixedly connected with, four group support column top fixedly connected with backup pad, the spout has all been seted up to the backup pad top left and right sides, and is two sets of the inside slider that all embeds of spout is two sets of the slider left and right sides all is connected with two sets of gyro wheels through the pivot, eight groups the gyro wheel all laminates mutually with spout left and right sides inner wall, and is two sets of slider top fixedly connected with supports the movable plate, it places the board to support fixedly connected with balancing weight in the middle of the movable plate top, it all is provided with and presss from both sides tight protector to support the movable plate left and.

In a further embodiment, adjusting device includes that support column, backup pad, spout, slider, gyro wheel, support movable plate, balancing weight place board, first motor, round bar, connecting rod, embedding pole, rotation round hole and promotion kidney slot, the first motor of all fixedly connected with in the middle of the base top, first motor output end fixedly connected with round bar, round bar top fixedly connected with connecting rod, connecting rod top left side fixedly connected with embedding pole, the embedding pole runs through and inserts in rotating the round hole, it runs through and offers in the middle of the backup pad to rotate the round hole, the embedding pole runs through and inserts in promoting the kidney slot, it runs through and offers in the middle of supporting the movable plate to promote the kidney slot, realizes through electronic the rotation that the balancing weight removes, and is simple and convenient again can save the cost to the practicality of device has been improved.

In a further embodiment, two sets of the inner walls of the front side and the rear side of the sliding groove are fixedly connected with fixed blocks, two sets of the inner walls of the front side and the rear side of the sliding groove are fixedly connected with one ends of first springs, the other ends of the four sets of the first springs are fixedly connected with magnets, the four sets of the magnets are connected with sliding blocks in an adsorption mode, the four sets of the first springs are sleeved on the outer walls of the fixed blocks, the sliding blocks are adsorbed by the magnets, and the balance weight blocks are moved slowly and stably through the elasticity of the first springs so that a worker can accurately find.

In a further embodiment, press from both sides tight protector and include second motor, first threaded rod, supporting shoe and movable sleeve, support the equal fixedly connected with second motor in movable plate top left and right sides, two sets of the equal fixedly connected with first threaded rod of second motor output, two sets of the first threaded rod is carried on the back of the body one side mutually and is all inserted inside the supporting shoe, and is two sets of the equal fixedly connected in movable plate both sides in supporting shoe bottom are two sets of the equal threaded connection of first threaded rod outer wall has the movable sleeve, can remove flexible pinch-grip board like this, makes things convenient for the staff to place the balancing weight, can remove flexible pinch-grip board simultaneously and press from both sides tight protection to higher balancing.

In a further embodiment, it is two sets of all fixedly connected with third motor in activity sleeve top, it is two sets of all fixedly connected with second threaded rod of third motor output, it is two sets of all threaded connection of second threaded rod top outer wall has the threaded sleeve, makes things convenient for the staff like this to adjust according to the balancing weight height to the protection balancing weight of clamp makes level the device when weighing apparatus position more stable, gets rid of the potential safety hazard of balancing weight slope simultaneously.

In further embodiment, two sets of first ring channel is all seted up to second threaded rod bottom outer wall all embedded one end of first embedding piece, two sets of the relative one side of first ring channel all fixedly connected with second sleeve pole the other end of first embedding piece, when the second threaded rod rotates, first embedding piece can not rotate, only slides in first ring channel is inside to the better tight protection balancing weight that presss from both sides, thereby has improved the reliability of device.

In a further embodiment, the two sets of threaded sleeves are provided with second annular grooves on the outer wall of the top portion, two sets of second annular grooves are embedded with one ends of second embedding blocks on opposite sides, two sets of second embedding blocks are fixedly connected with first sleeve rods on the other ends, and two sets of first sleeve rods are inserted into the second sleeve rods on the bottom portion.

In a further embodiment, the top of one side of each of the two groups of first sleeve rods, which is opposite to the top, is fixedly connected with a telescopic rod, the bottom of one side of each of the two groups of second sleeve rods, which is opposite to the bottom, is fixedly connected with a telescopic rod, the outer walls of the four groups of telescopic rods are fixedly sleeved with second springs, and the left side and the right side of each of the four groups of telescopic rods are fixedly connected with telescopic clamping plates.

In a further embodiment, the diameter of the rotating round hole is equal to that of the pushing kidney-shaped groove, and the diameter of the rotating round holes is equal to that of the rotating circle of the connecting rod, so that the rotation of the embedding rod is facilitated, and meanwhile, the embedding rod pushes the balancing weight on the top of the supporting moving plate to move.

The invention has the beneficial effects that: the effectual equipment of having guaranteed can realize that good horizontal focus is adjusted and the tight protection of balancing weight clamp, and equipment mechanism can fine adjust in whole course of the work to reach balancing weight and transport object balance adjustment, saved staff's time, utilize the progressive cooperation of a plurality of structures simultaneously, realize that the balancing weight presss from both sides tight protection, ensure staff's life safety, the potential safety hazard of exclusion device improves the security of device, thereby make equipment more possess the practicality.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic side sectional view of a crane counterweight apparatus according to an embodiment of the invention;

FIG. 2 is an enlarged schematic view of a counterweight apparatus of a crane according to an embodiment of the invention at A in FIG. 1;

FIG. 3 is an enlarged schematic view of a counterweight apparatus of a crane at B in FIG. 1 according to an embodiment of the invention;

fig. 4 is a schematic partial top sectional view of a crane counterweight apparatus according to an embodiment of the invention.

In the figure:

1. a base; 2. a support pillar; 3. a support plate; 4. a chute; 5. a slider; 6. a roller; 7. supporting the moving plate; 8. a counterweight placing plate; 9. a first motor; 10. a round bar; 11. a connecting rod; 12. an embedded rod; 13. rotating the circular hole; 14. pushing the kidney slot; 15. a fixed block; 16. a first spring; 17. a magnet; 18. a second motor; 19. a first threaded rod; 20. a support block; 21. a movable sleeve; 22. a third motor; 23. a second threaded rod; 24. a threaded sleeve; 25. a first annular groove; 26. a first embedding block; 27. a second annular groove; 28. a second embedded block; 29. a first sleeve rod; 30. a second sleeve rod; 31. a telescopic rod; 32. a second spring; 33. a telescopic clamping plate.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.

According to an embodiment of the present invention, a crane counterweight apparatus is provided.

The first embodiment is as follows:

as shown in fig. 1-4, the crane counterweight device according to the embodiment of the invention comprises a base 1, wherein an adjusting device is arranged on the top of the base 1, four groups of supporting columns 2 are fixedly connected to the top of the base 1, supporting plates 3 are fixedly connected to the top of the four groups of supporting columns 2, sliding grooves 4 are respectively formed on the left side and the right side of the top of the supporting plate 3, sliding blocks 5 are respectively embedded in the two groups of sliding grooves 4, two groups of rollers 6 are respectively connected to the left side and the right side of the two groups of sliding blocks 5 through rotating shafts, eight groups of rollers 6 are respectively attached to the inner walls on the left side and the right side of the sliding grooves 4, a supporting movable plate 7 is fixedly connected to the top of the two groups of sliding blocks 5, a counterweight placing plate 8 is fixedly connected to the middle of the top of, the adjusting device comprises a supporting column 2, a supporting plate 3, a sliding groove 4, a sliding block 5, a roller 6, a supporting movable plate 7, a balancing weight placing plate 8, a first motor 9, a round rod 10, a connecting rod 11, an embedding rod 12, a rotating round hole 13 and a pushing kidney-shaped groove 14, wherein the middle of the top end of the base 1 is fixedly connected with the first motor 9, the output end of the first motor 9 is fixedly connected with the round rod 10, the top end of the round rod 10 is fixedly connected with the connecting rod 11, the left side of the top end of the connecting rod 11 is fixedly connected with the embedding rod 12, the embedding rod 12 is inserted into the rotating round hole 13 in a penetrating manner, the diameter length of the rotating round hole 13 is equal to the length of the pushing kidney-shaped groove 14, the diameter of the rotating round hole 13 is equal to the diameter of the rotating circle of the connecting rod 11, so that the rotation of the embedding rod, embedding pole 12 runs through and inserts in promoting kidney-shaped groove 14, promote kidney-shaped groove 14 and run through and set up in the middle of supporting movable plate 7, realize the counter weight removal through electronic rotation, portably can save the cost promptly to improved the practicality of device, two sets of all fixedly connected with fixed block 15 of both sides inner wall around the spout 4, two sets of all fixedly connected with first spring 16's of both sides inner wall one end around the spout 4, four groups the all fixedly connected with magnet 17 of the other end of first spring 16, four groups magnet 17 all adsorbs and is connected with slider 5, four groups first spring 16 all overlaps in the 15 outer walls of fixed block, adsorbs slider 5 through magnet 17, and the rethread first spring 16 elasticity makes the counter weight remove slowly and stably to the staff accurately looks for the balance point.

The following description specifically refers to the specific arrangement and functions of the slider 5, the support moving plate 7, the first motor 9, the connecting rod 11, the embedding rod 12, the pushing kidney-shaped groove 14, the first threaded rod 19, the movable sleeve 21, the third motor 22, the second threaded rod 23, the threaded sleeve 24, the second spring 32 and the telescopic clamping plate 33.

As shown in figure 1, when the device is used and the balance between the counterweight and a transported object needs to be adjusted, by operating the first motor 9, the output end of the first motor 9 rotates to drive the round rod 10 to rotate, the round rod 10 rotates to drive the connecting rod 11 to rotate, the connecting rod 11 rotates to drive the embedded rod 12 to rotate in the rotating round hole 13 and simultaneously rotate in the pushing kidney-shaped groove 14, the embedded rod 12 rotates in the pushing kidney-shaped groove 14 and simultaneously pushes the supporting moving plate 7 to move, the supporting moving plate 7 moves to drive the sliding block 5 to move in the sliding groove 4, the roller 6 rolls on the inner wall of the sliding groove 4, the roller 6 moves and simultaneously drives the magnet 17 to move, the first spring 16 is stretched and compressed on the fixed block 15 by the movement of the magnet 17, the movement of the supporting moving plate 7 is buffered by the elastic force of the first spring 16, the movement of the supporting moving plate 7 simultaneously drives the, simultaneously moving the position of the balancing weight to change the direction of the acting force of the balancing weight on the conveyed object, so as to balance the balancing weight and the conveyed object, before the balancing weight moves, rotating the output end of a third motor 22 to rotate a second threaded rod 23, rotating the second threaded rod 23 to rotate a first embedded block 26 in a first annular groove 25, simultaneously rotating the second threaded rod 23 to move a threaded sleeve 24 upwards, moving the threaded sleeve 24 to simultaneously enable a second embedded block 28 clamped in a second annular groove 27 to drive a first sleeve rod 29 to move in a second sleeve rod 30, simultaneously adjusting the height of the threaded sleeve 24 according to the height of the balancing weight, when the height of the threaded sleeve 24 is adjusted to be consistent with the height of the balancing weight, then enabling the output end of a second motor 18 to work, rotating the output end of the second motor 18 to drive a first threaded rod 19 to rotate in a supporting block 20, rotating the first threaded rod 19 to drive a movable sleeve 21 to move on the outer wall of the first threaded rod 19, the movable sleeve 21 moves to drive the first embedded block 26 and the second embedded block 28 to move, the first embedded block 26 and the second embedded block 28 move to drive the first sleeve rod 29 and the second sleeve rod 30 to move, the telescopic clamping plate 33 is made to clamp the balancing weight, the telescopic rod 31 is made to contract and compress the second spring 32 simultaneously, the balancing weight is buffered through the second spring 32 and is rocked due to high vibration, meanwhile, the balancing weight is made to be supported and protected when being moved, the balancing weight is made to be more stable and safe when being moved, and therefore potential safety hazards are eliminated, and the device is made to be more practical.

Example two:

as shown in fig. 1-4, the left and right sides of the supporting and moving plate 7 are both provided with clamping protection devices, each clamping protection device comprises a second motor 18, a first threaded rod 19, a supporting block 20 and a movable sleeve 21, the left and right sides of the top end of the supporting and moving plate 7 are both fixedly connected with the second motor 18, the output ends of the two groups of second motors 18 are both fixedly connected with the first threaded rods 19, the opposite sides of the two groups of first threaded rods 19 are both inserted into the supporting blocks 20, the bottom ends of the two groups of supporting blocks 20 are both fixedly connected to the two sides of the supporting and moving plate 7, the outer walls of the two groups of first threaded rods 19 are both in threaded connection with the movable sleeves 21, so that the telescopic clamping plates 33 can be removed to facilitate the placement of a balancing weight by a worker, the telescopic clamping plates 33 can be moved to clamp, the output ends of the two groups of third motors 22 are fixedly connected with second threaded rods 23, the outer walls of the tops of the two groups of second threaded rods 23 are in threaded connection with threaded sleeves 24, so that workers can conveniently adjust the height of the balancing weights to clamp the protective balancing weights, meanwhile, the device is more stable when the balancing weights are moved to level the balance position, potential safety hazards of inclination of the balancing weights are eliminated, the outer walls of the bottoms of the two groups of second threaded rods 23 are provided with first annular grooves 25, one ends of first embedded blocks 26 are embedded in the opposite sides of the two groups of first annular grooves 25, the other ends of the two groups of first embedded blocks 26 are fixedly connected with second sleeve rods 30, when the second threaded rods 23 rotate, the first embedded blocks 26 cannot rotate and only slide in the first annular grooves 25 to better clamp the protective balancing weights, the reliability of the device is improved, the outer walls of the tops of the two groups of threaded sleeves 24 are provided with second annular grooves 27, the opposite sides of the two groups of second annular grooves 27 are all embedded with one end of a second embedded block 28, the other ends of the two groups of second embedded blocks 28 are all fixedly connected with first sleeve rods 29, the bottoms of the two groups of first sleeve rods 29 are all inserted into the second sleeve rods 30, the tops of the opposite sides of the two groups of first sleeve rods 29 are all fixedly connected with telescopic rods 31, the bottoms of the opposite sides of the two groups of second sleeve rods 30 are all fixedly connected with telescopic rods 31, the outer walls of the four groups of telescopic rods 31 are all fixedly sleeved with second springs 32, the left and right opposite sides of the four groups of telescopic rods 31 are all fixedly connected with telescopic clamping plates 33, and the second springs 32 elastically buffer the swinging of the balancing weight caused by the movement of a conveyed object, so that the balancing weight is more stable, and the life safety of workers is guaranteed.

For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.

In practical application, when the balance between the counterweight block and a transported object needs to be adjusted, by operating the first motor 9, the output end of the first motor 9 rotates to drive the round rod 10 to rotate, the round rod 10 rotates to drive the connecting rod 11 to rotate, the connecting rod 11 rotates to drive the embedded rod 12 to rotate in the rotating round hole 13 and simultaneously rotate in the pushing kidney-shaped groove 14, the embedded rod 12 rotates in the pushing kidney-shaped groove 14 and simultaneously pushes the supporting moving plate 7 to move, the supporting moving plate 7 moves to drive the sliding block 5 to move inside the sliding groove 4, the roller 6 rolls on the inner wall of the sliding groove 4, the roller 6 moves and simultaneously drives the magnet 17 to move, the first spring 16 is stretched and compressed on the fixed block 15 by the movement of the magnet 17, the movement of the supporting moving plate 7 is buffered by the first spring 16, the movement of the supporting moving plate 7 simultaneously drives the counterweight block at the top of the counterweight block placing plate 8 to move, and simultaneously moves the position of the, therefore, the balancing weight and the object to be transported are balanced, before the balancing weight moves, the output end of the third motor 22 rotates the second threaded rod 23 to rotate, the second threaded rod 23 rotates the first embedded block 26 to rotate in the first annular groove 25, simultaneously, the second threaded rod 23 rotates the threaded sleeve 24 to move upwards, the threaded sleeve 24 moves, simultaneously, the second embedded block 28 clamped in the second annular groove 27 drives the first sleeve rod 29 to move in the second sleeve rod 30, simultaneously, the height of the threaded sleeve 24 is adjusted according to the height of the balancing weight, when the height of the threaded sleeve 24 is adjusted to be consistent with the height of the balancing weight, the output end of the second motor 18 works, the output end of the second motor 18 rotates the first threaded rod 19 to rotate in the supporting block 20, the first threaded rod 19 rotates the movable sleeve 21 to move on the outer wall of the first threaded rod 19, the movable sleeve 21 moves the first embedded block 26 and the second embedded block 28 to move, first embedded piece 26 and second embedded piece 28 remove and drive first sleeve pole 29 and second sleeve pole 30 and remove, make flexible clamp plate 33 press from both sides tight balancing weight, make telescopic link 31 contract simultaneously and compress second spring 32, cushion the balancing weight through second spring 32 and because of higher rocking, make simultaneously when removing the balancing weight, play the effect of supporting the protection to the balancing weight, it is safer to stabilize more when making the balancing weight remove, thereby get rid of the potential safety hazard, make the device have more the practicality.

In conclusion, by means of the technical scheme, the equipment can be effectively guaranteed to realize good horizontal gravity center adjustment and counterweight clamping protection, the equipment mechanism can be well adjusted in the whole working process, so that balance adjustment of the counterweight and a conveyed object is achieved, the time of workers is saved, meanwhile, the counterweight clamping protection is realized by progressive matching of a plurality of structures, the life safety of the workers is guaranteed, the potential safety hazard of the device is eliminated, the safety of the device is improved, and the equipment is more practical.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The crane counterweight equipment is characterized by comprising a base (1), wherein the top of the base (1) is provided with an adjusting device, four groups of supporting columns (2) are fixedly connected with the top end of the base (1), supporting plates (3) are fixedly connected with the top ends of the four groups of supporting columns (2), the left side and the right side of the top of the supporting plate (3) are both provided with sliding grooves (4), the insides of the two groups of sliding grooves (4) are both embedded with sliding blocks (5), the left side and the right side of the two groups of sliding blocks (5) are both connected with two groups of idler wheels (6) through rotating shafts, the eight groups of idler wheels (6) are both attached to the insides of the left side and the right side of the sliding grooves (4), the top ends of the two groups of sliding blocks (5) are fixedly connected with, the middle of the top end of the supporting moving plate (7) is fixedly connected with a balancing weight placing plate (8), and clamping protection devices are arranged on the left side and the right side of the supporting moving plate (7).

2. The crane counterweight device according to claim 1, wherein the adjusting device comprises a support column (2), a support plate (3), a sliding groove (4), a sliding block (5), a roller (6), a support moving plate (7), a counterweight placing plate (8), a first motor (9), a round bar (10), a connecting bar (11), an embedded bar (12), a rotating round hole (13) and a pushing kidney-shaped groove (14), the first motor (9) is fixedly connected to the middle of the top end of the base (1), the round bar (10) is fixedly connected to the output end of the first motor (9), the connecting bar (11) is fixedly connected to the top end of the round bar (10), the embedded bar (12) is fixedly connected to the left side of the top end of the connecting bar (11), the embedded bar (12) is inserted into the rotating round hole (13), the rotating round hole (13) is arranged in the middle of the support plate (3), the embedded rod (12) penetrates through the pushing kidney-shaped groove (14), and the pushing kidney-shaped groove (14) penetrates through the middle of the supporting moving plate (7).

3. The crane counterweight device according to claim 1, wherein the inner walls of the front and rear sides of the two sets of chutes (4) are fixedly connected with fixed blocks (15), the inner walls of the front and rear sides of the two sets of chutes (4) are fixedly connected with one ends of first springs (16), the other ends of the four sets of first springs (16) are fixedly connected with magnets (17), the four sets of magnets (17) are connected with sliders (5) in an adsorption manner, and the four sets of first springs (16) are sleeved on the outer walls of the fixed blocks (15).

4. The crane counterweight device according to claim 1, wherein the clamping protection device comprises a second motor (18), a first threaded rod (19), support blocks (20) and movable sleeves (21), the second motor (18) is fixedly connected to the left side and the right side of the top end of the support moving plate (7), the first threaded rods (19) are fixedly connected to the output ends of the two groups of second motors (18), the two groups of first threaded rods (19) are inserted into the support blocks (20) from opposite sides, the bottom ends of the two groups of support blocks (20) are fixedly connected to the two sides of the support moving plate (7), and the movable sleeves (21) are connected to the outer walls of the two groups of first threaded rods (19) in a threaded manner.

5. A crane counterweight device as claimed in claim 4, characterized in that the top ends of said two sets of movable sleeves (21) are fixedly connected with a third motor (22), the output ends of said two sets of third motors (22) are fixedly connected with a second threaded rod (23), and the outer walls of the tops of said two sets of second threaded rods (23) are threadedly connected with threaded sleeves (24).

6. The crane counterweight device as claimed in claim 5, wherein the bottom outer walls of the two sets of second threaded rods (23) are provided with first annular grooves (25), one ends of first embedded blocks (26) are embedded in the opposite sides of the two sets of first annular grooves (25), and the other ends of the two sets of first embedded blocks (26) are fixedly connected with second sleeve rods (30).

7. The crane counterweight device as claimed in claim 5, wherein the top outer walls of the two sets of threaded sleeves (24) are provided with second annular grooves (27), one ends of second embedded blocks (28) are embedded in the opposite sides of the two sets of second annular grooves (27), the other ends of the two sets of second embedded blocks (28) are fixedly connected with first sleeve rods (29), and the bottoms of the two sets of first sleeve rods (29) are inserted into the second sleeve rods (30).

8. The crane counterweight device according to claim 7, wherein the top of the opposite side of the two sets of first sleeve rods (29) is fixedly connected with a telescopic rod (31), the bottom of the opposite side of the two sets of second sleeve rods (30) is fixedly connected with a telescopic rod (31), the outer walls of the four sets of telescopic rods (31) are fixedly sleeved with second springs (32), and the left and right opposite sides of the four sets of telescopic rods (31) are fixedly connected with telescopic clamping plates (33).

9. A crane counterweight device as claimed in claim 2, characterized in that said circular rotation holes (13) have a diameter equal to the length of the pushing kidney (14), and the circular rotation holes (13) have a diameter equal to the diameter of the rotation circle of the connecting rod (11).