CN217167402U

CN217167402U - Transmission gear box adapter sleeve size resumes repairs device

Info

Publication number: CN217167402U
Application number: CN202123440789.7U
Authority: CN
Inventors: 刘松
Original assignee: Yantai Huiang Electromechanical Technology Co ltd
Current assignee: Yantai Huiang Electromechanical Technology Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-08-12
Anticipated expiration: 2031-12-30

Abstract

The utility model relates to the technical field of welding repair, in particular to a transmission gear box adapter bushing size recovery and repair device which can automatically clean a bushing, has good cleaning effect, low labor intensity and high practicability and reliability; the automatic welding device comprises a base plate, a welding device, a milling device, a box, a baffle, a connecting plate, a fixed block, first lead screw, two sets of sliders, two sets of splint, supersonic generator, left and right mobile device, elevating gear, rotary device and gas blowing device, the equal fixed mounting of welding device and milling device is in the bottom plate upper end, a box fixed mounting is in the bottom plate upper end, it is provided with the cavity to prop up the incasement, baffle fixed mounting is in the cavity of a box, the cavity of a box is left chamber and right chamber respectively will be propped up to the baffle, the upper end of a box is the opening, left and right mobile device installs in a box upper end, elevating gear installs at left and right mobile device lower extreme, rotary device installs at the elevating gear lower extreme, connecting plate fixed mounting is at the rotary device lower extreme.

Description

Transmission gear box adapter sleeve size resumes repairs device

Technical Field

The utility model relates to a welding prosthetic technical field especially relates to a transmission gear box adapter sleeve size resumes repair device.

Background

The lining is a matching part used outside mechanical parts to achieve the functions of sealing, wear protection and the like, and is a ring sleeve playing the role of a gasket. It has wide application in drive gear box. The method comprises the steps of firstly disassembling the bushing on the transmission gear box, then cleaning lubricating oil and impurities on the bushing, and then welding a welding wire at the worn part of the bushing after melting the welding wire by using a cold welding machine, and then processing the welded part on the bushing to the initial size of the bushing by using a milling machine.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a can be automatically with the bush sanitization, the cleaning performance is good, low in labor strength, transmission gear box adapter sleeve size restoration repair device that practicality and reliability are high.

The utility model discloses a transmission gear box adapter bushing size recovery repair device, which comprises a bottom plate, a welding device, a milling device, a support box, a baffle plate, a connecting plate, a fixed block, a first lead screw, two sets of sliders, two sets of clamping plates, an ultrasonic generator, a left and right moving device, a lifting device, a rotating device and an air blowing device, wherein the welding device and the milling device are both fixedly arranged at the upper end of the bottom plate, the support box is fixedly arranged at the upper end of the bottom plate, a cavity is arranged in the support box, the baffle plate is fixedly arranged in the cavity of the support box, the cavity of the support box is respectively provided with a left cavity and a right cavity by the baffle plate, the upper end of the support box is an opening, the left and right moving device is arranged at the upper end of the support box, the lifting device is arranged at the lower end of the left and right moving device, the rotating device is arranged at the lower end of the lifting device, the connecting plate is fixedly arranged at the lower end of the rotating device, the rotating device is used for rotating the connecting plate, the fixed block is fixedly arranged at the lower end of the connecting plate, the first screw rod is rotatably arranged on the fixed block, the left part and the right part of the first screw rod are provided with external threads with opposite rotation directions, two groups of sliding blocks are arranged on the connecting plate in a left-right sliding mode, the two groups of sliding blocks are respectively screwed with the left part and the right part of the first screw rod, two groups of clamping plates are respectively fixedly arranged at the lower ends of the two groups of sliding blocks, the two groups of clamping plates are arranged in a left-right mirror mode, the air blowing device is arranged at the left part of the branch box, the ultrasonic generator is fixedly arranged on the branch box, and the output end of the ultrasonic generator is positioned in the right cavity of the branch box; firstly, a lining to be repaired is placed on the outer sides of two groups of clamping plates, the two groups of clamping plates are positioned in an inner ring of the lining, then a first screw rod is rotated, the two groups of clamping plates are mutually separated through two groups of sliding blocks by the rotating first screw rod, the lining is tightly pressed by the two groups of clamping plates, then a connecting plate is driven to descend by a lifting device, the lining is descended into a left cavity of a branch box by the connecting plate through the two groups of sliding blocks and the two groups of clamping plates, then an air blowing device is opened to blow air on the lining, large granular impurities on the lining are blown off, meanwhile, a rotating device is opened, the rotating device drives the lining to rotate through the two groups of sliding blocks, the large granular impurities on the lining are fully blown off by the air blowing device, then the rotating device is driven to ascend through the two groups of sliding blocks and the two groups of clamping plates to drive the lining to ascend to the upper part of a partition plate, then the left-right moving device drives the lifting device and the rotating device to move rightwards, the rotating device drives the connecting plate, the two groups of sliding blocks and the two groups of clamping plates to move rightwards, then the lining is moved rightwards until the lining is positioned above a right cavity of the branch box, then water and cleaning agents are added into the right cavity of the branch box, then the rotating device drives the connecting plate to descend through the lifting device, then the connecting plate descends through the two groups of sliding blocks and the two groups of clamping plates until the two groups of clamping plates drive the lining to be positioned in the water of the right cavity of the branch box, then the ultrasonic generator is started, ultrasonic waves emitted by the ultrasonic generator enable water to vibrate, so that residual lubricating oil on the lining is fully cleaned down, then the cleaned lining is lifted, the lining returns to the left cavity of the branch box and is dried by the air blowing device, and then the cleaned lining is taken down on the two groups of clamping plates and is placed into the welding device for welding repair, then, machining the welded bushing to an initial size through a milling device; the water-washing bushing cleaning machine avoids manual bushing cleaning, reduces labor intensity, can enable all parts of the bushing to be washed by water through water vibration, and is good in cleaning effect, high in practicability and high in reliability.

Preferably, the left-right moving device comprises pillars, fixed plates, two groups of sliding rails, a second screw rod, a first motor, two groups of sliding blocks, a connecting block and a moving plate, wherein the four groups of pillars are respectively and fixedly arranged at the left part and the right part of the upper end of the supporting box; the first motor is started, the first motor drives the second screw rod to rotate, the rotating second screw rod drives the movable plate to move left and right through the connecting block, the movable plate drives the lifting device to move left and right, left and right movement of the lifting device is facilitated, and convenience is improved.

Preferably, the lifting device comprises a connecting frame, a cylinder, a push rod, two groups of lifting plates and telescopic rods, the connecting frame is fixedly arranged at the lower end of the movable plate, the cylinder is fixedly arranged on the connecting frame, the output end of the cylinder is connected with the upper end of the push rod, the push rod is vertically and slidably arranged on the connecting frame, the lifting plates are fixedly arranged at the lower ends of the push rod, the upper ends of the two groups of telescopic rods are fixedly arranged at the lower end of the connecting frame, the lower ends of the two groups of telescopic rods are fixedly arranged on the lifting plates, and the rotating device is arranged below the lifting plates; the cylinder is opened, the cylinder drives the lifting plate to ascend through the ejector rod, the lifting plate drives the rotating device to ascend, the lifting device is convenient to ascend and descend, and the use is convenient.

Preferably, the rotating device comprises a rotating shaft, a first bevel wheel, a second bevel wheel, a driving shaft and a second motor, the rotating shaft is rotatably mounted at the lower end of the lifting plate, the first bevel wheel is fixedly mounted on the rotating shaft, the second bevel wheel is meshed with the first bevel wheel, the second bevel wheel is fixedly mounted at the left end of the driving shaft, the right end of the driving shaft is connected with the output end of the second motor, the second motor is fixedly mounted at the lower end of the lifting plate, and the connecting plate is fixedly mounted at the lower end of the rotating shaft; the second motor is started, the second motor drives the first cone pulley to rotate through the second cone pulley, the first cone pulley drives the connecting plate to rotate through the rotating shaft, the connecting plate drives the bushing to rotate through the two groups of sliding blocks and the two groups of clamping plates, the rotating bushing can be fully blown to by the blowing device, and reliability is improved.

Preferably, the blowing device comprises an air pump, a main pipe and an air injection pipe, the air pump is fixedly arranged at the left end of the branch box, the output end of the air pump is connected with the input end of the main pipe, the output end of the main pipe is connected with the input end of the air injection pipe, a plurality of groups of nozzles are arranged on the air injection pipe, the input ends of the plurality of groups of nozzles are all connected with the output end of the air injection pipe, and the nozzles at the lower side are obliquely arranged on the air injection pipe; the air pump is opened, so that air enters the multiple groups of nozzles through the main pipe and the air injection pipe, then the air is sprayed out of the multiple groups of nozzles, and the nozzles inclined at the lower side blow the air to the inner ring of the bushing, so that the air blowing to the bushing is facilitated, and the convenience is improved.

Preferably, the device also comprises a reciprocating screw rod, a moving block, a push plate and a third motor, wherein the reciprocating screw rod is rotatably arranged on the branch box, the right end of the reciprocating screw rod is connected with the output end of the third motor, the third motor is fixedly arranged on the bottom plate, the moving block is arranged in a right cavity of the branch box in a left-right sliding manner, the moving block is screwed with the reciprocating screw rod, and the push plate is fixedly arranged at the upper end of the moving block; the third motor is started, the third motor drives the moving block to move left and right, the moving block drives the push plate to move left and right, and the push plate enables water in the right cavity of the branch box to flow when moving left and right, so that the mixing of water and cleaning agents is promoted, and the reliability is improved.

Preferably, the welding device is a repair cold welding machine; through the arrangement, the deformation of the bushing during welding is reduced, and the size stability is improved.

Compared with the prior art, the beneficial effects of the utility model are that: firstly, a lining to be repaired is placed on the outer sides of two groups of clamping plates, the two groups of clamping plates are positioned in an inner ring of the lining, then a first screw rod is rotated, the two groups of clamping plates are mutually separated through two groups of sliding blocks by the rotating first screw rod, the lining is tightly pressed by the two groups of clamping plates, then a connecting plate is driven to descend by a lifting device, the lining is descended into a left cavity of a branch box by the connecting plate through the two groups of sliding blocks and the two groups of clamping plates, then an air blowing device is opened to blow air on the lining, large granular impurities on the lining are blown off, meanwhile, a rotating device is opened, the rotating device drives the lining to rotate through the two groups of sliding blocks, the large granular impurities on the lining are fully blown off by the air blowing device, then the rotating device is driven to ascend through the two groups of sliding blocks and the two groups of clamping plates to drive the lining to ascend to the upper part of a partition plate, then the left-right moving device drives the lifting device and the rotating device to move rightwards, the rotating device drives the connecting plate, the two groups of sliding blocks and the two groups of clamping plates to move rightwards, then the lining is moved rightwards until the lining is positioned above a right cavity of the branch box, then water and cleaning agents are added into the right cavity of the branch box, then the rotating device drives the connecting plate to descend through the lifting device, then the connecting plate descends through the two groups of sliding blocks and the two groups of clamping plates until the two groups of clamping plates drive the lining to be positioned in the water of the right cavity of the branch box, then the ultrasonic generator is started, ultrasonic waves emitted by the ultrasonic generator enable water to vibrate, so that residual lubricating oil on the lining is fully cleaned down, then the cleaned lining is lifted, the lining returns to the left cavity of the branch box and is dried by the air blowing device, and then the cleaned lining is taken down on the two groups of clamping plates and is placed into the welding device for welding repair, then, machining the welded bushing to an initial size through a milling device; the water-washing bushing cleaning machine avoids manual bushing cleaning, reduces labor intensity, can enable all parts of the bushing to be washed by water through water vibration, and is good in cleaning effect, high in practicability and high in reliability.

Drawings

Fig. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic structural view of a branch box, a pillar, a fixing plate, and the like;

FIG. 3 is a schematic structural view of a moving plate, a cylinder, a lifting plate, etc.;

FIG. 4 is a schematic structural view of an air pump, a main pipe, an air ejector pipe, and the like;

in the drawings, the reference numbers: 1. a base plate; 2. a welding device; 3. a milling device; 4. a branch box; 5. a partition plate; 6. a connecting plate; 7. a fixed block; 8. a first lead screw; 9. a slider; 10. a splint; 11. an ultrasonic generator; 12. a pillar; 13. a fixing plate; 14. a slide rail; 15. a second lead screw; 16. a first motor; 17. a slider; 18. connecting blocks; 19. moving the plate; 20. a connecting frame; 21. a cylinder; 22. a top rod; 23. a lifting plate; 24. a telescopic rod; 25. a first cone pulley; 26. a second cone wheel; 27. a drive shaft; 28. a second motor; 29. an air pump; 30. a main pipe; 31. a gas ejector tube; 32. a reciprocating screw rod; 33. a moving block; 34. pushing the plate; 35. a third motor.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

The welding device 2 and the milling device 3 are both fixedly arranged at the upper end of the bottom plate 1, the branch box 4 is fixedly arranged at the upper end of the bottom plate 1, a cavity is arranged in the branch box 4, the partition plate 5 is fixedly arranged in the cavity of the branch box 4, the cavity of the branch box 4 is respectively provided with a left cavity and a right cavity by the partition plate 5, the upper end of the branch box 4 is provided with an opening, the fixed block 7 is fixedly arranged at the lower end of the connecting plate 6, the first screw rod 8 is rotatably arranged on the fixed block 7, the left part and the right part of the first screw rod 8 are provided with external threads with opposite rotation directions, the two groups of slide blocks 9 are respectively arranged on the connecting plate 6 in a left-right sliding manner, the two groups of slide blocks 9 are respectively screwed with the left part and the right part of the first screw rod 8, the two groups of clamp plates 10 are respectively fixedly arranged at the lower ends of the two groups of slide blocks 9, the two groups of clamp plates 10 are arranged in a left-right mirror image manner, the ultrasonic generator 11 is fixedly arranged on the branch box 4, the output end of the ultrasonic generator 11 is arranged in the right cavity of the branch box 4, the four groups of the support columns 12 are respectively and fixedly arranged at the left part and the upper end of the branch box 4, two groups of fixed plates 13 are respectively and fixedly arranged on four groups of pillars 12, the left ends of two groups of slide rails 14 are respectively and fixedly arranged on the fixed plate 13 at the left side, the right ends of two groups of slide rails 14 are respectively and fixedly arranged on the fixed plate 13 at the right side, a second screw rod 15 is rotatably arranged on the two groups of slide rails 14, the left end of the second screw rod 15 is connected with the output end of a first motor 16, the first motor 16 is fixedly arranged on the fixed plate 13 at the left side, two groups of sliding blocks 17 are respectively and horizontally and slidably arranged on the two groups of slide rails 14, a connecting block 18 is in screw assembly with the second screw rod 15, a movable plate 19 is fixedly arranged at the lower ends of the two groups of sliding blocks 17 and the connecting block 18, a lifting device is arranged at the lower end of the movable plate 19, a connecting frame 20 is fixedly arranged at the lower end of the movable plate 19, an air cylinder 21 is fixedly arranged on the connecting frame 20, the output end of the air cylinder 21 is connected with the upper end of an ejector rod 22, the ejector rod 22 is vertically and slidably arranged on the connecting frame 20, the lifting plate 23 is fixedly arranged at the lower end of the mandril 22, the upper ends of the two groups of telescopic rods 24 are fixedly arranged at the lower end of the connecting frame 20, the lower ends of the two groups of telescopic rods 24 are fixedly arranged on the lifting plate 23, the rotating device is arranged below the lifting plate 23, the rotating shaft is rotatably arranged at the lower end of the lifting plate 23, the first cone pulley 25 is fixedly arranged on the rotating shaft, the second cone pulley 26 is meshed with the first cone pulley 25, the second cone pulley 26 is fixedly arranged at the left end of the driving shaft 27, the right end of the driving shaft 27 is connected with the output end of the second motor 28, the second motor 28 is fixedly arranged at the lower end of the lifting plate 23, the connecting plate 6 is fixedly arranged at the lower end of the rotating shaft, the air pump 29 is fixedly arranged at the left end of the branch box 4, the output end of the air pump 29 is connected with the input end of the main pipe 30, the output end of the main pipe 30 is connected with the input end of the air ejector pipe 31, a plurality of groups of sprayers are arranged on the air sprayer 31, the lower sprayer is obliquely arranged on the gas injection pipe 31, the reciprocating screw rod 32 is rotatably arranged on the branch box 4, the right end of the reciprocating screw rod 32 is connected with the output end of a third motor 35, the third motor 35 is fixedly arranged on the bottom plate 1, the moving block 33 is arranged in the right cavity of the branch box 4 in a left-right sliding mode, the moving block 33 is in threaded connection with the reciprocating screw rod 32, and the push plate 34 is fixedly arranged at the upper end of the moving block 33; firstly, a lining to be repaired is placed on the outer sides of two groups of clamping plates 10, the two groups of clamping plates 10 are positioned in an inner ring of the lining, then a first screw rod 8 is rotated, the two groups of clamping plates 10 are mutually separated through two groups of sliding blocks 9 by the rotating first screw rod 8, until the two groups of clamping plates 10 tightly push the lining, a cylinder 21 is opened, the cylinder 21 drives a lifting plate 23 to descend through a mandril 22, the lifting plate 23 drives a connecting plate 6 to drive two groups of sliding blocks 9 to descend through a rotating shaft, the two groups of sliding blocks 9 drive two groups of clamping plates 10 to descend, the two groups of clamping plates 10 drive the lining to descend until the lining is positioned on the right side of an air injection pipe 31, then an air pump 29 is opened, air enters a plurality of groups of nozzles through a main pipe 30 and the air injection pipe 31, then the air is sprayed out from the plurality of groups of nozzles, the nozzles inclined at the lower side blow the air to the inner ring of the lining, then a second motor 28 is opened, the second motor 28 drives a second cone 26 to rotate through a driving shaft 27, the second cone pulley 26 drives the rotating shaft to rotate through the first cone pulley 25, the rotating shaft enables the two groups of sliding blocks 9 to drive the two groups of clamping plates 10 to rotate through the connecting plate 6, the two groups of clamping plates 10 drive the bushing to rotate, the bushing is fully blown clean of large-particle impurities on the bushing by the spray head in the rotating process, then the clamping plates 10 are lifted to the upper side of the partition plate 5, the first motor 16 is turned on, the first motor 16 drives the second lead screw 15 to rotate, the rotating second lead screw 15 drives the moving plate 19 to move rightwards through the connecting block 18, the moving plate 19 drives the lifting plate 23 to move rightwards through the connecting frame 20, the lifting plate 23 enables the two groups of sliding blocks 9, the two groups of clamping plates 10 and the bushing to move rightwards through the rotating shaft until the bushing is positioned above the right cavity of the branch box 4, then water and a cleaning agent are added into the right cavity of the branch box 4, then the third motor 35 is turned on, and the third motor 35 drives the moving block 33 to move leftwards, the moving block 33 drives the push plate 34 to move left and right, when the push plate 34 moves left and right, water in the right cavity of the branch box 4 flows to promote mixing of water and cleaning agents, then the ultrasonic generator 11 is started, ultrasonic waves emitted by the ultrasonic generator 11 enable water to vibrate, residual lubricating oil on the lining is sufficiently cleaned, after the lubricating oil on the lining is cleaned, the lining returns to the left cavity of the branch box 4 to be dried, then the clean lining is taken down from the two groups of clamping plates 10 and then is placed into the welding device 2 to be welded and repaired, and then the welded lining is machined to the initial size through the milling device 3; the manual cleaning of the bushings is avoided, the labor intensity is reduced, all parts of the bushings can be cleaned by water due to the vibration of the water, the cleaning effect is good, the distance between the two groups of clamping plates 10 can be adjusted, the bushings with different specifications can be clamped, the limitation is low, and the practicability and the reliability are high.

The size recovery and repair device for the adapter bushing of the transmission gear box has the advantages that the installation mode, the connection mode or the arrangement mode are common mechanical modes, and the device can be implemented as long as the beneficial effects are achieved; the utility model discloses a transmission gear box adapter bushing size resumes welding set 2, milling device 3, telescopic link 24, cylinder 21, reciprocal lead screw 32 and push pedal 34 of repairing device are purchase on the market, and this industry technical staff only need according to its subsidiary specification install and operate can, and need not the technical staff in this field and pay out creative work.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

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 transmission gear box adapter bushing size recovery and repair device is characterized by comprising a bottom plate (1), a welding device (2), a milling device (3), a branch box (4), a partition plate (5), a connecting plate (6), a fixing block (7), a first screw rod (8), two groups of sliding blocks (9), two groups of clamping plates (10), an ultrasonic generator (11), a left-right moving device, a lifting device, a rotating device and an air blowing device, wherein the welding device (2) and the milling device (3) are fixedly arranged at the upper end of the bottom plate (1), the branch box (4) is fixedly arranged at the upper end of the bottom plate (1), a cavity is arranged in the branch box (4), the partition plate (5) is fixedly arranged in the cavity of the branch box (4), the cavity of the branch box (4) is respectively provided with a left cavity and a right cavity by the partition plate (5), the upper end of the branch box (4) is provided with an opening, the left-right moving device is arranged at the upper end of the branch box (4), elevating gear installs and removes the device lower extreme about, rotary device installs at the elevating gear lower extreme, connecting plate (6) fixed mounting is at the rotary device lower extreme, rotary device is used for rotating connecting plate (6), fixed block (7) fixed mounting is at connecting plate (6) lower extreme, first lead screw (8) are rotated and are installed on fixed block (7), two parts are provided with the external screw thread that revolves to opposite about first lead screw (8), equal horizontal slidable mounting of two sets of slider (9) is on connecting plate (6), two sets of slider (9) respectively with two parts screw installations about first lead screw (8), two sets of splint (10) are fixed mounting respectively at two sets of slider (9) lower extreme, mirror image installation about two sets of splint (10), gas blowing device installs in a case (4) left part, supersonic generator (11) fixed mounting is on a case (4), supersonic generator's (11) output is located a case (4) right side intracavity.

2. The repair device for recovering the dimension of the adapter bushing of the transmission gearbox as recited in claim 1, wherein the left and right moving device comprises pillars (12), a fixed plate (13), two sets of slide rails (14), a second screw (15), a first motor (16), two sets of slide blocks (17), a connecting block (18) and a moving plate (19), wherein the four sets of pillars (12) are respectively and fixedly installed at the left and right parts of the upper end of the support box (4), the two sets of fixed plates (13) are respectively and fixedly installed on the four sets of pillars (12), the left ends of the two sets of slide rails (14) are respectively and fixedly installed on the fixed plate (13) at the left side, the right ends of the two sets of slide rails (14) are respectively and fixedly installed on the fixed plate (13) at the right side, the second screw (15) is rotatably installed on the two sets of slide rails (14), and the left end of the second screw (15) is connected with the output end of the first motor (16), the first motor (16) is fixedly installed on the left fixing plate (13), the two groups of sliding blocks (17) are respectively installed on the two groups of sliding rails (14) in a left-right sliding mode, the connecting blocks (18) and the second screw rods (15) are installed in a threaded mode, the moving plate (19) is fixedly installed at the lower ends of the two groups of sliding blocks (17) and the connecting blocks (18), and the lifting device is installed at the lower end of the moving plate (19).

3. The transmission gearbox adapter bushing size recovery repairing device as recited in claim 1, wherein the lifting device comprises a connecting frame (20), a cylinder (21), a push rod (22), two sets of lifting plates (23) and telescopic rods (24), the connecting frame (20) is fixedly installed at the lower end of the moving plate (19), the cylinder (21) is fixedly installed on the connecting frame (20), the output end of the cylinder (21) is connected with the upper end of the push rod (22), the push rod (22) is vertically and slidably installed on the connecting frame (20), the lifting plates (23) are fixedly installed at the lower ends of the push rod (22), the upper ends of the two sets of telescopic rods (24) are fixedly installed at the lower end of the connecting frame (20), the lower ends of the two sets of telescopic rods (24) are fixedly installed on the lifting plates (23), and the rotating device is installed below the lifting plates (23).

4. The transmission gearbox adapter bushing dimension restoration and repair device according to claim 1, wherein the rotating device comprises a rotating shaft, a first cone pulley (25), a second cone pulley (26), a driving shaft (27) and a second motor (28), the rotating shaft is rotatably installed at the lower end of the lifting plate (23), the first cone pulley (25) is fixedly installed on the rotating shaft, the second cone pulley (26) is meshed with the first cone pulley (25), the second cone pulley (26) is fixedly installed at the left end of the driving shaft (27), the right end of the driving shaft (27) is connected with the output end of the second motor (28), the second motor (28) is fixedly installed at the lower end of the lifting plate (23), and the connecting plate (6) is fixedly installed at the lower end of the rotating shaft.

5. The transmission gearbox adapter bushing dimension restoration and repair device according to claim 1, wherein the blowing device comprises an air pump (29), a main pipe (30) and an air injection pipe (31), the air pump (29) is fixedly installed at the left end of the branch box (4), the output end of the air pump (29) is connected with the input end of the main pipe (30), the output end of the main pipe (30) is connected with the input end of the air injection pipe (31), a plurality of groups of nozzles are arranged on the air injection pipe (31), the input ends of the plurality of groups of nozzles are connected with the output end of the air injection pipe (31), and the nozzles at the lower side are obliquely installed on the air injection pipe (31).

6. The device for recovering and repairing the dimension of the adapter bushing of the transmission gearbox as claimed in claim 1, further comprising a reciprocating lead screw (32), a moving block (33), a push plate (34) and a third motor (35), wherein the reciprocating lead screw (32) is rotatably mounted on the branch box (4), the right end of the reciprocating lead screw (32) is connected with the output end of the third motor (35), the third motor (35) is fixedly mounted on the bottom plate (1), the moving block (33) is slidably mounted in the right cavity of the branch box (4) left and right, the moving block (33) is screwed with the reciprocating lead screw (32), and the push plate (34) is fixedly mounted at the upper end of the moving block (33).

7. A transmission gearbox adapter bushing dimensional recovery repair device according to claim 1, characterized in that the welding device (2) is a repair cold welding machine.