CN210393563U

CN210393563U - Large-arm telescopic structure overhauling device

Info

Publication number: CN210393563U
Application number: CN201921172147.3U
Authority: CN
Inventors: 朱品
Original assignee: Luoyang Siwo Industrial Technology Co Ltd
Current assignee: Luoyang Siwo Industrial Technology Co Ltd
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-04-24
Anticipated expiration: 2029-07-24

Abstract

The utility model relates to the technical field of auxiliary devices for large-arm telescopic structures, in particular to an overhaul device for large-arm telescopic structures; the ascending ladder can reduce the use of the ascending ladder, improve the ascending safety of operators, reduce the occurrence of ascending accidents and improve the use reliability of equipment; including the backup pad, backup pad bottom left front side, left rear side, right front side and right rear side all are provided with the removal wheel, still include four groups of threaded rods, backup pad top middle part is provided with first fixed plate, the equal screw sleeve in two sets of threaded rod lateral walls is equipped with the screwed pipe, be provided with between the screwed pipe of four groups and place the platform, two sets of threaded rod bottoms are all fixed and are provided with first pivot, the equal fixed cover of four groups of first pivot lateral walls is equipped with first transmission wheel, two sets of first transmission wheels in rear side pass through first conveyer belt transmission and connect, the equal fixed second pivot that is provided with in two sets of threaded rod tops in right side, two sets of second pivot tops are all fixed and are.

Description

Large-arm telescopic structure overhauling device

Technical Field

The utility model relates to a big arm extending structure uses auxiliary device's technical field, especially relates to a big arm extending structure overhauls device.

Background

As is well known, the large-arm telescopic structure overhauling device is a device used for overhauling a large-arm telescopic structure in the maintenance process of the large-arm telescopic structure, can provide convenience for overhauling personnel, and is widely used in the field of auxiliary devices for the large-arm telescopic structure; the existing large arm telescopic structure overhauling device comprises a supporting plate, wherein moving wheels are fixedly arranged on the left front side, the left rear side, the right front side and the right rear side of the bottom end of the supporting plate; when the large-arm telescopic structure overhauling device is used, the ascending ladder is placed at the top end of the supporting plate, the supporting plate is moved by using the moving wheel, and an operator performs ascending detection and maintenance; the large-arm telescopic structure overhauling device is discovered in use, when an operator ascends a height, the operator needs to use the ascending ladder to lift the height, the danger is higher in the ascending process, the ascending accident is easy to happen, and the use reliability of equipment is lower.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a reduce the use of ladder of ascending a height improves operating personnel's the security of ascending a height, reduces the emergence of the accident of ascending a height, improve equipment's use reliability's big arm extending structure maintenance device.

The utility model discloses a large arm telescopic structure maintenance device, which comprises a supporting plate, wherein the left front side, the left rear side, the right front side and the right rear side of the bottom end of the supporting plate are provided with movable wheels; the middle part of the top end of the supporting plate is provided with a first fixed plate, the four groups of threaded rods are respectively arranged on the left side of the top end and the right side of the top end of the first fixed plate, the four groups of threaded rods are respectively connected with the left front side, the left rear side, the right front side and the right rear side of the top end of the first fixed plate, the outer side walls of the two groups of threaded rods are respectively provided with threaded pipes in a screw-mounting manner, a placing table is arranged between the four groups of threaded pipes, the front side of the left end and the rear side of the left end of the placing table are respectively connected with the right ends of the two groups of threaded pipes on the left side, the bottom ends of the two groups of threaded rods are respectively and fixedly provided with a first rotating shaft, the outer side walls of the four groups of first rotating shafts are respectively and fixedly sleeved with first transmission wheels, the two groups of first transmission wheels on the rear side are in transmission, the top ends of the two groups of second rotating shafts are fixedly provided with second transmission wheels, the two groups of second transmission wheels are connected through a third conveyor belt in a transmission mode, the top end of the front second transmission wheel is fixedly provided with a third rotating shaft, the top end of the third rotating shaft is provided with a first motor, and the output end of the first motor is connected with the top end of the third rotating shaft.

The utility model discloses a big arm extending structure overhauls device, still include the gear, the fixed rack board that is provided with in backup pad bottom middle part, the backup pad bottom is provided with two sets of extension boards, the gear sets up between two sets of extension boards, gear front end and rear end are all fixed and are provided with the connecting axle, front side connecting axle front end and rear side connecting axle rear end respectively with front side extension board rear end and rear side branch board front end rotatable coupling, gear top and rack board bottom meshing contact, front side extension board front end is provided with the second motor, second motor output passes behind the front side extension board and is connected with front side connecting axle front end.

The utility model discloses a big arm extending structure overhauls device, the backup pad middle part is provided with the slide, and slide top and bottom all communicate and are provided with long type hole, are provided with the slider in the slide, and the fixed second fixed plate that is provided with in slider top, second fixed plate top and first fixed plate bottom middle part are connected, and slider bottom front side and bottom rear side are connected with two sets of extension board tops respectively.

The utility model discloses a big arm extending structure overhauls device, the two sets of threaded rod tops in left side and the two sets of threaded rod tops in right side all are provided with the third fixed plate, the two sets of threaded rod tops in left side and the two sets of threaded rod tops in right side respectively with two sets of third fixed plate bottom front sides and bottom rear side rotatable coupling, right side third fixed plate front side and rear side all are provided with first connecting hole, two sets of second pivot bottoms are passed respectively after two sets of first connecting holes respectively and are connected with right side threaded rod top, left side third fixed plate bottom left side and right side third fixed plate bottom right side are all fixed and are provided with the fourth fixed plate, two sets of fourth fixed plate bottoms are connected with first fixed plate top left side and top.

The utility model discloses a big arm extending structure overhauls device, backup pad bottom left side front side, left rear side, right front side and right rear side are all fixed and are provided with the landing leg, and the two sets of landing leg left ends in left side and the two sets of landing leg right-hand members in right side are all fixed and are provided with first connecting plate, and the first connecting plate bottom of four groups is all fixed and is provided with the cylinder, and four groups remove the wheel top and are connected with four groups of cylinder output ends respectively.

The utility model discloses a big arm extending structure overhauls device still includes second connecting plate and third connecting plate, and the second connecting plate sets up in first motor downside, and second connecting plate middle part is provided with the second connecting hole, and the front side third pivot top is connected with first motor output after passing the second connecting hole, and the third connecting plate is fixed to be set up in second connecting plate bottom right side, and third connecting plate bottom is connected with right side third fixed plate top right side, and first motor is fixed to be set up in third connecting plate top.

The utility model discloses a big arm extending structure overhauls device still includes the toolbox, is provided with the instrument chamber in the toolbox, and toolbox top intercommunication is provided with the opening, and opening and instrument chamber top intercommunication, toolbox top are provided with the fender lid, keep off the fixed handle that is provided with in lid top.

The utility model discloses a big arm extending structure overhauls device, first fixed plate top left front side, left rear side, right front side and right rear side all are provided with the mounting groove, and the equal fixed bearing that is provided with in four group's mounting grooves, the first pivot bottom of four groups insert respectively to four group's bearings in and be connected with four group's bearing inside walls respectively.

Compared with the prior art, the beneficial effects of the utility model are that: the first motor drives the third rotating shaft to rotate, the front second transmission wheel rotates along with the third rotating shaft under the transmission action of the third conveying belt, the rear second transmission wheel rotates along with the third rotating shaft, the two groups of second transmission wheels rotate along with the second rotating shaft under the connection action of the two groups of second rotating shafts, the right two groups of threaded rods rotate along with the second rotating shaft, the right two groups of first transmission wheels rotate along with the right two groups of first transmission wheels, the left two groups of threaded rods rotate along with the first conveying belt and the second conveying belt, the four groups of threaded rods rotate along with the fourth rotating shafts, the four groups of threaded pipes move up and down, the placing table moves up along with the four groups of threaded pipes, the operator stands behind the top end of the placing table during maintenance, the placing table moves up and moves up along with the operator, and the height of the operator can be increased, the use of the ladder of ascending a height is reduced, the safety of ascending a height of operating personnel is improved, the occurrence of ascending accidents is reduced, and the use reliability of equipment is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged view of portion B of FIG. 1;

FIG. 4 is an enlarged view of portion C of FIG. 1;

FIG. 5 is a top view of a connection structure of a second motor and a gear;

in the drawings, the reference numbers: 1. a support plate; 2. a moving wheel; 3. a threaded rod; 4. a first fixing plate; 5. a threaded pipe; 6. a placing table; 7. a first rotating shaft; 8. a first transfer wheel; 10. a second conveyor belt; 11. a second rotating shaft; 12. a second transfer wheel; 13. a third conveyor belt; 14. a third rotating shaft; 15. a first motor; 16. a gear; 17. a rack plate; 18. a support plate; 19. a connecting shaft; 20. a second motor; 21. a slideway; 22. a slider; 23. a second fixing plate; 24. a third fixing plate; 25. a fourth fixing plate; 26. a support leg; 27. a first connecting plate; 28. a cylinder; 29. a second connecting plate; 30. a third connecting plate; 31. a tool box; 32. a blocking cover; 33. a handle; 34. and a bearing.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1 to 5, the maintenance device for the large arm telescopic structure of the present invention comprises a supporting plate 1, wherein moving wheels 2 are arranged on the left front side, the left rear side, the right front side and the right rear side of the bottom end of the supporting plate 1; the device is characterized by further comprising four groups of threaded rods 3, wherein a first fixing plate 4 is arranged in the middle of the top end of the supporting plate 1, the four groups of threaded rods 3 are respectively arranged on the left side of the top end and the right side of the top end of the first fixing plate 4, the four groups of threaded rods 3 are respectively connected with the left front side, the left rear side, the right front side and the right rear side of the top end of the first fixing plate 4, threaded pipes 5 are respectively sleeved on the outer side walls of the two groups of threaded rods 3 in a threaded manner, a placing table 6 is arranged between the four groups of threaded pipes 5, the front side and the rear side of the left end of the placing table 6 are respectively connected with the right ends of the two groups of threaded pipes 5 on the right side, first rotating shafts 7 are respectively fixedly arranged at the bottom ends of the two groups of threaded rods 3, first transmission wheels 8 are respectively fixedly sleeved on the outer side walls of the four groups of first rotating shafts 7, the two groups of, the top ends of the two groups of right threaded rods 3 are fixedly provided with second rotating shafts 11, the top ends of the two groups of second rotating shafts 11 are fixedly provided with second transmission wheels 12, the two groups of second transmission wheels 12 are in transmission connection through a third conveyor belt 13, the top ends of the front second transmission wheels 12 are fixedly provided with third rotating shafts 14, the top ends of the third rotating shafts 14 are provided with first motors 15, and the output ends of the first motors 15 are connected with the top ends of the third rotating shafts 14; the first motor drives the third rotating shaft to rotate, the front second transmission wheel rotates along with the third rotating shaft under the transmission action of the third conveying belt, the rear second transmission wheel rotates along with the third rotating shaft, the two groups of second transmission wheels rotate along with the second rotating shaft under the connection action of the two groups of second rotating shafts, the right two groups of threaded rods rotate along with the second rotating shaft, the right two groups of first transmission wheels rotate along with the right two groups of first transmission wheels, the left two groups of threaded rods rotate along with the first conveying belt and the second conveying belt, the four groups of threaded rods rotate along with the fourth rotating shafts, the four groups of threaded pipes move up and down, the placing table moves up along with the four groups of threaded pipes, the operator stands behind the top end of the placing table during maintenance, the placing table moves up and moves up along with the operator, and the height of the operator can be increased, the use of the ladder of ascending a height is reduced, the safety of ascending a height of operating personnel is improved, the occurrence of ascending accidents is reduced, and the use reliability of equipment is improved.

The utility model discloses a big arm extending structure overhauls device, still include gear 16, 1 bottom middle part of backup pad is fixed and is provided with rack plate 17, 1 bottom of backup pad is provided with two sets of extension boards 18, gear 16 sets up between two sets of

extension boards

18, 16 front ends of gear and rear end all are fixed and are provided with connecting

axle

19, 19 front ends of front connecting axle 19 and rear connecting axle 19 rear ends respectively with 18 rear ends of front side branch board and 18 front ends rotatable coupling of rear side branch board, 16 top ends of gear and rack plate 17 bottom meshing contact, 18 front ends of front side branch boards are provided with

second motor

20, 20 output ends of second motor pass 18 back and are connected with 19 front ends of front side branch board; the second motor drives the front connecting shaft to rotate, the gear rotates along with the front connecting shaft under the action of the two groups of connecting shafts, the gear rotates and moves in the left-right direction from the bottom end of the rack plate under the meshing action of the rack plate, the first fixing plate moves in the left-right direction along with the placement table under the connecting action, the position of an operator can be adjusted in the left-right direction along with the position of the operator, the position of the operator can be adjusted manually, and the use reliability of the equipment is improved.

The utility model discloses a large arm extending structure overhauls device, backup pad 1 middle part is provided with slide 21, and slide 21 top and bottom all communicate and are provided with the rectangular hole, are provided with slider 22 in the slide 21, and slider 22 top is fixed and is provided with second fixed plate 23, and second fixed plate 23 top is connected with 4 bottom middle parts of first fixed plate, and slider 22 bottom front side and bottom rear side are connected with 18 tops of two sets of extension boards respectively; in the process that the gear moves in the left-right direction, the sliding block can move in the left-right direction from the inside of the slide way under the connecting action of the two groups of support plates, the first fixing plate moves in the left-right direction along with the sliding block under the connecting action of the second fixing plate, and the stability of the first fixing plate in the left-right direction moving process can be improved due to the arrangement of the sliding block.

The utility model discloses a large arm extending structure overhauls device, 3 tops of left side two sets of threaded rods and 3 tops of right side two sets of threaded rods all are provided with third fixed plate 24, 3 tops of left side two sets of threaded rods and 3 tops of right side two sets of threaded rods respectively with two sets of third fixed plate 24 bottom front sides and bottom rear side rotatable coupling, right side third fixed plate 24 front sides and rear side all are provided with first connecting hole, two sets of second pivot 11 bottoms pass respectively after two sets of first connecting holes respectively with 3 tops of right side threaded rod, left side third fixed plate 24 bottom left sides and right side third fixed plate 24 bottom right sides all are fixed and are provided with fourth fixed plate 25, two sets of fourth fixed plate 25 bottoms are connected with first fixed plate 4 top left sides and top right sides respectively; two sets of third are fixed according to can improve the stability of four groups of threaded rods respectively with two sets of fourth fixed plates, reduce and place the platform when the removal of upper and lower direction, the threaded rod takes place the phenomenon of lateral buckling under the effect of external force.

The utility model discloses a large arm telescopic structure overhauls device, the left front side, the left rear side, the right front side and the right rear side of backup pad 1 bottom are all fixedly provided with landing leg 26, the left end of the left side two sets of landing legs 26 and the right end of the right side two sets of landing legs 26 are all fixedly provided with first connecting plate 27, the bottom of the four sets of first connecting plates 27 is all fixedly provided with cylinder 28, the top of the four sets of moving wheels 2 is respectively connected with the output end of the four sets of cylinder 28; in the moving process of the equipment, the four groups of cylinders respectively drive the moving wheels to move downwards, and when the four groups of moving wheels are in contact with the ground, the equipment can be moved by the four groups of moving wheels, so that the use reliability of the equipment is improved.

The utility model discloses a large boom extending structure overhauls device, still include second connecting plate 29 and third connecting plate 30, second connecting plate 29 sets up in first motor 15 downside, second connecting plate 29 middle part is provided with the second connecting hole, the front side is connected with first motor 15 output after third pivot 14 top passes the second connecting hole, third connecting plate 30 is fixed to be set up in second connecting plate 29 bottom right side, third connecting plate 30 bottom is connected with the right side of the third fixed plate 24 top on right side, first motor 15 is fixed to be set up in third connecting plate 30 top; the second connecting plate and the third connecting plate increase the stability of first motor, improve equipment's use reliability.

The utility model discloses a large arm extending structure overhauls device still includes toolbox 31, is provided with the tool chamber in the toolbox 31, and toolbox 31 top intercommunication is provided with the opening, and the opening communicates with tool chamber top, and toolbox 31 top is provided with fender lid 32, and fender lid 32 top is fixed to be provided with handle 33; when the maintenance is carried out, operating personnel can place the instrument in the toolbox, reduces the scattered phenomenon of losing of instrument.

The utility model discloses a large arm telescopic structure overhauls device, the left front side, the left back side, the right front side and the right back side of the top of first fixed plate 4 all are provided with the mounting groove, all fixedly in four groups of mounting grooves are provided with bearing 34, the bottom of four groups of first rotating shafts 7 is inserted into four groups of bearings 34 respectively and is connected with the inside wall of four groups of bearings 34 respectively; the arrangement of the bearing can improve the rotational lubricity of the four groups of first rotating shafts and reduce the friction force in the rotating process.

The utility model relates to a large arm telescopic structure maintenance device, when in use, in the moving process of equipment, four groups of cylinders respectively drive moving wheels to move downwards, when the four groups of moving wheels are all contacted with the ground, the equipment can be moved by the four groups of moving wheels, when the equipment is moved to a proper position, an operator stands on the top end of a placing table, a first motor drives a third rotating shaft to rotate, a front side second transmission wheel rotates along with the third rotating shaft, the front side second transmission wheel rotates along with the third rotating shaft under the transmission action of a third conveyor belt, a rear side second transmission wheel rotates along with the fourth rotating shaft, two groups of threaded rods on the right side rotate along with the second rotating shaft under the connection action of the two groups of second rotating shafts, two groups of first transmission wheels on the right side rotate along with the right side, and two groups of threaded rods on the left side rotate along with the first conveying belt and the second conveying belt under the transmission action of the first conveying belt and, when the four groups of threaded rods rotate, the four groups of threaded pipes move up and down along with the threaded rods, the placing table moves up along with the threaded pipes, an operator moves up along with the threaded pipes while moving up, the height of the operator can be increased, when the maintenance is carried out, the position of the operator can be moved according to the maintenance position, the second motor drives the front connecting shaft to rotate, the gear rotates along with the two groups of connecting shafts, the gear moves left and right from the bottom end of the rack plate along with the meshing action of the rack plate while rotating, under the connecting action, the first fixing plate and the placing table move left and right along with the connecting shaft, the position of the operator adjusts left and right directions along with the gear, meanwhile, in the process of moving the gear in the left and right directions, under the connecting action of the two groups of supporting plates, the slider can carry out the removal of left and right direction from the slide in, and under the connection effect of second fixed plate, the removal of left and right direction is carried out thereupon to first fixed plate, and the setting of slider can improve the stability of first fixed plate left and right directions removal in-process.

The installation mode, the connection mode or the setting mode of the large arm telescopic structure overhauling device of the utility model are common mechanical modes, and the overhauling device can be implemented as long as the beneficial effects can be achieved; and its motor and cylinder all take control module and electric wire certainly, insert the electricity and can use, do not change its inner structure, and take the service instruction certainly, and relevant field technical personnel accessible service instruction uses.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A large arm telescopic structure overhauling device comprises a supporting plate (1), wherein moving wheels (2) are arranged on the left front side, the left rear side, the right front side and the right rear side of the bottom end of the supporting plate (1); the device is characterized by further comprising four groups of threaded rods (3), wherein a first fixing plate (4) is arranged in the middle of the top end of the supporting plate (1), the four groups of threaded rods (3) are respectively arranged on the left side and the right side of the top end of the first fixing plate (4), the four groups of threaded rods (3) are respectively arranged on the left front side, the left rear side, the right front side and the right rear side of the top end of the first fixing plate (4), threaded pipes (5) are respectively sleeved on the outer side walls of the two groups of threaded rods (3) in a threaded mode, a placing table (6) is arranged between the four groups of threaded pipes (5), the front side and the rear side of the left end of the placing table (6) are respectively connected with the right ends of the two groups of threaded pipes (5) on the left side, first rotating shafts (7) are respectively fixedly arranged at the bottom ends of the two groups of threaded rods (3), first transmission wheels (8) are respectively fixedly sleeved on the outer, two sets of first transmission wheels (8) of rear side are connected through first conveyer belt transmission, two sets of first transmission wheels (8) of front side are connected through second conveyer belt (10) transmission, two sets of threaded rods (3) of right side top is all fixed and is provided with second pivot (11), two sets of second pivot (11) tops are all fixed and are provided with second transmission wheel (12), two sets of second transmission wheels (12) are connected through third conveyer belt (13) transmission, front side second transmission wheel (12) top is all fixed and is provided with third pivot (14), third pivot (14) top is provided with first motor (15), first motor (15) output is connected with third pivot (14) top.

2. The large-arm telescopic structure overhauling device according to claim 1, further comprising a gear (16), wherein a rack plate (17) is fixedly arranged in the middle of the bottom end of the support plate (1), two groups of support plates (18) are arranged at the bottom end of the support plate (1), the gear (16) is arranged between the two groups of support plates (18), connecting shafts (19) are fixedly arranged at the front end and the rear end of the gear (16), the front end of the front connecting shaft (19) and the rear end of the rear connecting shaft (19) are respectively rotatably connected with the rear end of the front support plate (18) and the front end of the rear support plate (18), the top end of the gear (16) is in meshing contact with the bottom end of the rack plate (17), a second motor (20) is arranged at the front end of the front support plate (18), and the output end of the second motor (20) passes through the front support plate (18) and then is connected.

3. The large arm telescopic structure overhauling device according to claim 2, wherein a slide way (21) is arranged in the middle of the supporting plate (1), the top end and the bottom end of the slide way (21) are both communicated and provided with long holes, a slide block (22) is arranged in the slide way (21), a second fixing plate (23) is fixedly arranged at the top end of the slide block (22), the top end of the second fixing plate (23) is connected with the middle of the bottom end of the first fixing plate (4), and the front side and the rear side of the bottom end of the slide block (22) are respectively connected with the top ends of the two groups of support plates (18).

4. The large arm telescopic structure overhauling device as recited in claim 3, wherein a third fixing plate (24) is arranged at the top ends of the left two groups of threaded rods (3) and the right two groups of threaded rods (3), the top ends of the left two groups of threaded rods (3) and the top ends of the right two groups of threaded rods (3) are rotatably connected with the front sides of the bottoms and the rear sides of the bottoms of the two groups of third fixing plates (24), the front sides and the rear sides of the right third fixing plates (24) are respectively provided with a first connecting hole, the bottoms of the two groups of second rotating shafts (11) are respectively connected with the top ends of the right threaded rods (3) after passing through the two groups of first connecting holes, fourth fixing plates (25) are fixedly arranged at the left sides of the bottoms of the left third fixing plates (24) and the right sides of the bottoms of the right third fixing plates (24), and the bottoms of the two groups of fourth fixing.

5. The large arm telescopic structure overhauling device as recited in claim 4, wherein the left front side, the left rear side, the right front side and the right rear side of the bottom end of the supporting plate (1) are all fixedly provided with the supporting legs (26), the left ends of the left two groups of supporting legs (26) and the right ends of the right two groups of supporting legs (26) are all fixedly provided with the first connecting plates (27), the bottom ends of the four groups of first connecting plates (27) are all fixedly provided with the air cylinders (28), and the top ends of the four groups of movable wheels (2) are respectively connected with the output ends of the four groups of air cylinders (28).

6. The large arm telescopic structure overhauling device according to claim 5, further comprising a second connecting plate (29) and a third connecting plate (30), wherein the second connecting plate (29) is arranged at the lower side of the first motor (15), a second connecting hole is arranged in the middle of the second connecting plate (29), the top end of a front third rotating shaft (14) penetrates through the second connecting hole and then is connected with the output end of the first motor (15), the third connecting plate (30) is fixedly arranged at the right side of the bottom end of the second connecting plate (29), the bottom end of the third connecting plate (30) is connected with the right side of the top end of a right third fixing plate (24), and the first motor (15) is fixedly arranged at the top end of the third connecting plate (30).

7. The large-arm telescopic structure overhauling device according to claim 6, further comprising a tool box (31), wherein a tool cavity is arranged in the tool box (31), a through hole is arranged at the top end of the tool box (31) in a communicating manner, the through hole is communicated with the top end of the tool cavity, a stop cover (32) is arranged at the top end of the tool box (31), and a handle (33) is fixedly arranged at the top end of the stop cover (32).

8. The large arm telescopic structure overhauling device according to claim 7, wherein the left front side, the left rear side, the right front side and the right rear side of the top end of the first fixing plate (4) are all provided with mounting grooves, the four groups of mounting grooves are all fixedly provided with bearings (34), and the bottom ends of the four groups of first rotating shafts (7) are respectively inserted into the four groups of bearings (34) and are respectively connected with the inner side walls of the four groups of bearings (34).