Supporting device for crankshaft inspection

Abstract

The invention discloses a supporting device for crankshaft inspection, a supporting assembly comprises a supporting part and two mounting boxes, and the surfaces, close to each other, of the two mounting boxes are each provided with a first via hole for a crankshaft to penetrate through; the driving assembly is arranged on one of the two mounting boxes; the two first transmission assemblies are arranged in the two mounting boxes correspondingly. The two abutting and pushing assemblies are movably arranged in the two mounting boxes correspondingly. The two clamping assemblies are movably arranged in the two mounting boxes correspondingly, and the clamping assemblies are connected with the first transmission assembly; the two second transmission assemblies are arranged in the two mounting boxes correspondingly, one of the two second transmission assemblies is connected with the driving assembly, and the second transmission assemblies are connected with the abutting and pushing assembly and used for enabling the abutting and pushing assembly to move in the vertical direction so that the clamping assembly can be close to the end of the crankshaft; when the clamping assembly clamps the end of the crankshaft, the second transmission assembly can be connected with the first transmission assembly, and the first transmission assembly is matched to enable the clamping assembly to rotate.

Description

Technical Field

[0001] This application relates to the technical field of ship equipment, and particularly relates to a support device for crankshaft inspection. Background Art

[0002] The marine crankshaft is a main component of the ship power plant, which plays an important role in the stable operation of the power plant and the safe navigation of the ship. Therefore, it is an important process for diesel engine quality assurance to inspect the crankshaft before installing it on the diesel engine body and to do a good job in the whole-life quality management of the crankshaft.

[0003] When inspecting the crankshaft, it is necessary to rotate the crankshaft so that the inspection probe can conduct a more comprehensive inspection of the crankshaft. At present, when some existing support devices for crankshaft inspection are in use, it is necessary for workers to first operate the first driving mechanism to make the clamping mechanism clamp the end of the crankshaft, and then operate the second driving mechanism to drive the rotating mechanism to operate, so as to realize the rotation of the clamping mechanism and the crankshaft. However, when this device inspects multiple crankshafts, it requires workers to operate the two driving mechanisms many times successively, the operation is relatively cumbersome, the degree of automation is low, and the labor intensity is high. Summary of the Invention

[0004] This application provides a support device for crankshaft inspection, which can realize that the clamping component first automatically clamps the end of the crankshaft and then rotates the crankshaft through a driving component, improve the degree of automation, reduce the labor intensity of workers, and can also inspect crankshafts of different lengths, improving the versatility of the device.

[0005] In a first aspect, this application provides a support device for crankshaft inspection, including a support component, a driving component, two first transmission components, two pushing components, two clamping components, two second transmission components and a third transmission component. The support component includes a support part and two mounting boxes. The surfaces of the two mounting boxes close to each other are both provided with first through holes for the crankshaft to pass through; the driving component is arranged in one of the two mounting boxes; the two first transmission components are respectively arranged in the two mounting boxes; the two pushing components are respectively movably arranged in the two mounting boxes; the two clamping components are respectively movably arranged in the two mounting boxes, and the clamping component is connected with the first transmission component; the two second transmission components are respectively arranged in the two mounting boxes, one of the two second transmission components is connected with the driving component, the second transmission component is connected with the pushing component, and is used to make the pushing component move vertically, so that the clamping component approaches the end of the crankshaft, so that when the clamping component clamps the end of the crankshaft, the second transmission component can be connected with the first transmission component and cooperate with the first transmission component to make the clamping component rotate; the third transmission component is arranged on the support component, the third transmission component is connected with the two second transmission components, and the two mounting boxes are slidably connected with the support part, and is used to be able to adjust the distance between the two mounting boxes.

[0006] In some of these embodiments, the second transmission assembly includes a bidirectional lead screw rotatably passing through the mounting box. The driving assembly includes a driving motor, a driving shaft, a first bevel gear, and a second bevel gear. The driving motor is mounted on one of the two mounting boxes; one end of the driving shaft is fixedly connected to the output shaft of the driving motor; the first bevel gear is fixedly connected to the other end of the driving shaft; the second bevel gear is fixedly connected to the bidirectional lead screw and meshes with the first bevel gear.

[0007] In some of these embodiments, the pushing component includes two movable blocks, two sliders, two fixing plates, and two pushing parts. The two movable blocks are respectively threadedly connected to the two ends of the bidirectional lead screw. The outer peripheral wall of the movable block is provided with a plurality of limiting holes arranged at annular intervals; the two sliders are slidably connected to the inner wall of the installation box. Both sliders are fixedly connected with installation rings, and the installation rings are rotatably sleeved on the outer peripheral wall of the movable block; the slider is provided with a first chute, a second chute, and a through hole extending in the horizontal direction. The first chute and the through hole are both communicated with the second chute. A first elastic member is arranged in the first chute. The first elastic member is fixedly connected with a limiting rod. One end of the limiting rod is slidably connected to the inner wall of the first chute, and the other end can correspond to the limiting hole; a first abutting member passing through the through hole is arranged on the outer wall of the limiting rod, an electromagnet is arranged on the inner wall of the through hole, and the first abutting member is provided with an iron block; the two fixing plates are fixedly connected to the inner wall of the installation box. The fixing plate is provided with an installation cylinder, a second elastic member is arranged in the installation cylinder, the second elastic member is fixedly connected with a second abutting member, the second abutting member is slidably connected to the inner wall of the installation cylinder, and the surfaces of the first abutting member and the second abutting member close to each other are inclined; the two pushing parts are fixedly connected to the slider and can abut against the clamping component; the pushing part includes a connecting body and a pushing body. One end of the connecting body is fixedly connected to the slider, and the other end is fixedly connected to the pushing body. The pushing body is semicircularly arranged, and a plurality of ball bearings are arranged on the surface of the pushing body away from the connecting body; the clamping component includes two clamping plates arranged in a semicircle. Both clamping plates are connected to the first transmission component and are located between the two pushing parts; the second transmission component further includes a third bevel gear arranged on the bidirectional lead screw. The first transmission component includes a mounting seat, a rotating cylinder, a movable box, a rotating column, a fourth bevel gear, two connecting pieces, and a fixing cylinder. The mounting seat is fixedly connected to the inner wall of the installation box. The mounting seat is provided with a through hole and a communication hole that are communicated with each other. The third bevel gear is located in the through hole; one end of the rotating cylinder is rotatably connected to the inner wall of the communication hole, and a plurality of sliding grooves are arranged on the inner wall of the rotating cylinder; the movable box is fixedly connected to the other end of the rotating cylinder; a plurality of strip-shaped blocks are arranged on the outer peripheral wall of the rotating column. The strip-shaped blocks are slidably connected to the inner wall of the sliding groove. One end of the rotating column extends into the movable box, and the other end extends into the communication hole and the through hole in sequence; the fourth bevel gear is fixedly connected to the other end of the rotating column and can mesh with the third bevel gear; the two connecting pieces are respectively fixedly connected to the two clamping plates. The connecting piece partially extends into the movable box and is fixedly connected with a moving plate. The moving plate is slidably connected to the inner wall of the movable box. A third elastic member fixedly connected to the moving plate is arranged on the inner top wall of the movable box. The moving plate is connected with an insertion rod; the fixing cylinder is fixedly connected to the inner wall of the movable box. A fourth elastic member is arranged in the fixing cylinder. The fourth elastic member is connected with a sliding body. The sliding body is slidably connected to the fixing cylinder. The end of the sliding body away from the fixing cylinder is rotatably connected to one end of the rotating column. An inclined groove corresponding to the insertion rod is arranged at one end of the rotating column.

[0008] In some of these embodiments, the third transmission assembly includes a fixed seat, two mounting bodies, a movable cylinder, two rotating rods, two fifth bevel gears, and two sixth bevel gears. The fixed seat is provided on the support assembly; the two mounting bodies are respectively connected to the tops of the two mounting boxes; the movable cylinder rotatably penetrates through the fixed seat, and a plurality of drive grooves are provided on the inner wall of the movable cylinder; a plurality of drive plates are provided on the outer peripheral walls of the two rotating rods, and the drive plates are slidably connected to the inner walls of the drive grooves. The rotating rods rotatably penetrate through the mounting bodies; the two fifth bevel gears are respectively fixedly connected to the two rotating rods; the two sixth bevel gears are respectively fixedly connected to one ends of the two bidirectional lead screws and are respectively meshed with the two fifth bevel gears; the support portion includes two brackets and a placement plate. The two ends of the placement plate are respectively fixedly connected to the tops of the two brackets. The placement plate abuts against the two mounting boxes. The placement plate is provided with two sliding holes, and a movable body is slidably connected to the inner walls of the sliding holes. The movable body is fixedly connected to the mounting box; the bracket is provided with a cross plate, and a hydraulic cylinder is fixedly connected to the cross plate. A placement plate is provided at the telescopic end of the hydraulic cylinder. The placement plate is rotatably connected to two connecting rods, and the connecting rods are rotatably connected to the movable body; a support block is movably provided on the placement plate. An inspection cylinder for the crankshaft to pass through is provided on the support block. A probe for inspecting the crankshaft is provided on the inner wall of the inspection cylinder; a cam is provided at the other end of one of the two bidirectional lead screws. A fixed block and a mounting block are provided on the bottom surface of the placement plate. The fixed block is provided with a receiving cavity, and a fifth elastic member is provided in the receiving cavity. A sliding rod movably penetrates through the mounting block. One end of the sliding rod extends into the receiving cavity and is fixedly connected to the fifth elastic member, and the other end is provided with a pulley that abuts against the cam. A vertical plate is provided on the sliding rod. A sliding hole is provided on the placement plate, and the inner wall of the sliding hole is slidably connected to the vertical plate. The vertical plate is fixedly connected to the support block; a blower cover is fixedly connected to the top of each of the two mounting boxes. A plurality of fan blades are provided on the portion of the bidirectional lead screw located inside the blower cover. A corrugated pipe is connected to the side wall of the blower cover; two air supply pipes are fixedly connected to the inspection cylinder. One end of the air supply pipe is connected to the corrugated pipe. An annular air supply cavity extending in a ring shape is provided inside the inspection cylinder. The air supply cavity is communicated with the air supply pipe. An annular sealing plug is movably provided in the air supply cavity. A plurality of first air spray holes and a plurality of second air spray holes are respectively provided on the inner walls at both ends of the inspection cylinder; the support portion further includes a support frame fixedly connected to the placement plate. The support frame is provided with a second through hole for the crankshaft to pass through. The support frame is provided with a fixed rod, and a part of the fixed rod extends into the air supply cavity and is fixedly connected to the annular sealing plug.

[0009] Based on the support device for crankshaft inspection according to the embodiments of the present application, after inserting the two ends of the crankshaft into the installation box, the second transmission component is activated by the operation of the drive component, and then the thrust component is activated and gradually approaches and abuts against the clamping component. The clamping component will approach the end of the crankshaft under the pushing action of the thrust component. When the clamping component moves to clamp and fix the end of the crankshaft, it will drive the first transmission component to move from the state of being disengaged from the second transmission component to the state of being interconnected with the second transmission component. The continuous movement of the second transmission component will cooperate with the first transmission component to rotate the clamping component, and then rotate the crankshaft. In this way, only by manually operating one drive component can the clamping component automatically clamp the end of the crankshaft first and then rotate the crankshaft, improving the degree of automation, thereby improving the efficiency of inspecting multiple crankshafts and reducing the labor intensity of workers. By setting the third component, after adjusting the distance between the two installation boxes, it can still ensure the synchronous movement of the second transmission components in the two installation boxes, and thus can inspect crankshafts of different lengths, improving the versatility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0011] Figure 1 Structural schematic diagram of the support device for crankshaft inspection according to the present application;

[0012] Figure 2 Structural schematic diagram of the thrust component according to the present application;

[0013] Figure 3 Structural schematic diagram of the first transmission component according to the present application;

[0014] Figure 4 is Figure 3 Structural schematic diagram of the rotating column, rotating cylinder, fixed cylinder and mounting seat in

[0015] Figure 5 Structural schematic diagram of the drive component and the air supply hood according to the present application;

[0016] Figure 6 Structural schematic diagram of the support frame and the inspection cylinder according to the present application;

[0017] Figure 7 Structural schematic diagram of the bracket, placement plate, cam, sliding rod, moving body and fixed block according to the present application.

[0018] Description of the reference numerals:

[0019] 1. Support assembly; 11. Installation box; 111. Air supply hood; 1111. Bellows; 112. First through hole; 12. Support part; 121. Placement plate; 1211. Slide hole; 1212. Sliding hole; 1213. Fixed block; 12131. Fifth elastic member; 12132. Slide bar; 122. Bracket; 123. Support frame; 1231. Second through hole; 1232. Fixed rod; 2. Drive assembly; 21. Drive motor; 22. Drive shaft; 23. First bevel gear; 24. Second bevel gear; 3. First transmission assembly; 31. Movable box; 32. Mounting seat; 321. Through hole; 33. Rotating column; 331. Inclined groove; 332. Strip-shaped block; 333. Fourth bevel gear; 34. Rotating cylinder; 35. Fixed cylinder; 36. Fourth elastic member; 37. Sliding body; 38. Connecting member; 381. Moving plate; 3811. Plug rod; 39. Third elastic member; 4. Pushing component; 41. Movable block; 411. Limit hole; 412. Mounting ring; 42. Slide block; 421. First chute; 4211. First elastic member; 422. Second chute; 4221. Limit rod; 423. First abutting member; 4231. Iron block; 424. Electromagnet; 43. Pushing part; 431. Connecting body; 432. Pushing body; 4321. Ball; 44. Fixed plate; 441. Mounting cylinder; 442. Second abutting member; 443. Second elastic member; 5. Clamping assembly; 6. Second transmission assembly; 61. Bidirectional lead screw; 611. Fan blade; 612. Cam; 6121. Pulley; 62. Third bevel gear; 7. Third transmission assembly; 71. Fixed seat; 72. Movable cylinder; 73. Rotating rod; 731. Drive plate; 732. Fifth bevel gear; 74. Mounting body; 75. Sixth bevel gear; 8. Hydraulic cylinder; 81. Placing plate; 82. Connecting rod; 83. Moving body; 9. Inspection cylinder; 91. Annular sealing plug; 92. First air jet hole; 93. Air supply chamber; 94. Air supply pipe; 95. Probe; 96. Second air jet hole; 97. Support block; 971. Vertical plate.

[0020] The realization of the purpose of this application, its functional features and advantages will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0021] In order to make the purpose, technical solutions and advantages of this application clearer, the following further details this application with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

[0022] Please refer to Figures 1 to 7, this application provides a support device for crankshaft inspection, which includes a support assembly 1, a drive assembly 2, two first transmission assemblies 3, two pushing assemblies 4, two clamping assemblies 5, two second transmission assemblies 6 and a third transmission assembly 7. The support assembly 1 includes a support portion 12 and two mounting boxes 11. The surfaces of the two mounting boxes 11 close to each other are both provided with first through holes 112 for the crankshaft to pass through; the drive assembly 2 is arranged in one of the two mounting boxes 11; the two first transmission assemblies 3 are respectively arranged in the two mounting boxes 11; the two pushing assemblies 4 are respectively movably arranged in the two mounting boxes 11; the two clamping assemblies 5 are respectively movably arranged in the two mounting boxes 11, and the clamping assembly 5 is connected to the first transmission assembly 3; the two second transmission assemblies 6 are respectively arranged in the two mounting boxes 11, and one of the two second transmission assemblies 6 is connected to the drive assembly 2. The second transmission assembly 6 is connected to the pushing assembly 4 to make the pushing assembly 4 move in the vertical direction so that the clamping assembly 5 approaches the end of the crankshaft. When the clamping assembly 5 clamps the end of the crankshaft, the second transmission assembly 6 can be connected to the first transmission assembly 3 and cooperate with the first transmission assembly 3 to make the clamping assembly 5 rotate; the third transmission assembly 7 is arranged on the support assembly 1, and the third transmission assembly 7 is connected to the two second transmission assemblies 6, and the two mounting boxes 11 are slidably connected to the support portion 12 to be able to adjust the distance between the two mounting boxes 11.

[0023] In the embodiment provided by this application, the two ends of the crankshaft to be inspected respectively pass through the first through holes 112 and extend into the mounting boxes 11. The drive assembly 2 operates to make the second transmission assembly 6 move, and then make the pushing assembly 4 move and gradually approach and abut against the clamping assembly 5. The clamping assembly 5 will approach the end of the crankshaft under the pushing action of the pushing assembly 4. When the clamping assembly 5 moves to clamp the end of the fixed column crankshaft, it will drive the first transmission assembly 3 to move from the state of being disengaged from the second transmission assembly 6 to the state of being connected to the second transmission assembly 6. The continuous movement of the second transmission assembly 6 will cooperate with the first transmission assembly 3 to make the clamping assembly 5 rotate, and then make the crankshaft rotate. In this way, only by manually operating one drive assembly 2 to run, it can be realized that the clamping assembly 5 first automatically clamps the end of the crankshaft and then rotates the crankshaft, improving the degree of automation, thereby improving the efficiency of inspecting multiple crankshafts and reducing the labor intensity of workers. By setting the third component, after adjusting the distance between the two mounting boxes 11, it can still ensure the synchronous movement of the second transmission assemblies 6 in the two mounting boxes 11, and then can inspect crankshafts of different lengths, improving the versatility of the device. Among them, mounting columns can be detachably connected to the two ends of the crankshaft, and the mounting columns are located in the mounting boxes 11, so that the clamping assembly 5 can clamp the mounting columns and facilitate the rotation of the crankshaft.

[0024] In some embodiments of the present application, the second transmission assembly 6 includes a bidirectional lead screw 61, the bidirectional lead screw 61 is rotatably disposed through the mounting box 11, the driving assembly 2 includes a driving motor 21, a driving shaft 22, a first bevel gear 23 and a second bevel gear 24, the driving motor 21 is mounted on one of the two mounting boxes 11; one end of the driving shaft 22 is fixedly connected to the output shaft of the driving motor 21; the first bevel gear 23 is fixedly connected to the other end of the driving shaft 22; the second bevel gear 24 is fixedly connected to the bidirectional lead screw 61 and meshes with the first bevel gear 23. The bidirectional lead screw 61 is threadedly connected to the pushing assembly 4.

[0025] Start the driving motor 21 to rotate the driving shaft 22, drive the first bevel gear 23 to rotate, and then drive the bidirectional lead screw 61 to rotate through the second bevel gear 24. The bidirectional lead screw 61 is connected to the pushing assembly 4. When the bidirectional lead screw 61 rotates, the pushing assembly 4 will move close to the clamping assembly 5 along the vertical direction.

[0026] In some embodiments of the present application, the pushing assembly 4 includes two movable blocks 41, two sliders 42, two fixing plates 44 and two pushing parts 43. The two movable blocks 41 are respectively threadedly connected to both ends of the bidirectional lead screw 61. A plurality of limiting holes 411 arranged at annular intervals are provided on the outer peripheral wall of the movable block 41; the two sliders 42 are slidably connected to the inner wall of the mounting box 11. Both sliders 42 are fixedly connected with mounting rings 412, and the mounting rings 412 are rotatably sleeved on the outer peripheral wall of the movable block 41; a first chute 421, a second chute 422 and a through hole extending in the horizontal direction are provided in the slider 42. The first chute 421 and the through hole are both communicated with the second chute 422. A first elastic member 4211 is provided in the first chute 421. The first elastic member 4211 is fixedly connected with a limiting rod 4221. One end of the limiting rod 4221 is slidably connected to the inner wall of the first chute 421, and the other end can correspond to the limiting hole 411; a first abutting member 423 passing through the through hole is provided on the outer wall of the limiting rod 4221, an electromagnet 424 is provided on the inner wall of the through hole, and an iron block 4231 is provided on the first abutting member 423; the two fixing plates 44 are fixedly connected to the inner wall of the mounting box 11. An installation cylinder 441 is provided on the fixing plate 44. A second elastic member 443 is provided in the installation cylinder 441. The second elastic member 443 is fixedly connected with a second abutting member 442. The second abutting member 442 is slidably connected to the inner wall of the installation cylinder 441. The surfaces of the first abutting member 423 and the second abutting member 442 facing each other are inclined; the two pushing parts 43 are fixedly connected to the slider 42 and can abut against the clamping assembly 5.

[0027] When the bidirectional lead screw 61 rotates, the two movable blocks 41 approach each other along the vertical direction, driving the mounting ring 412 and the slider 42 to move vertically. When the pushing portion 43 on the slider 42 abuts against the clamping assembly 5, as the slider 42 moves, the pushing portion 43 will push the clamping assembly 5 to clamp the end of the crankshaft. When the slider 42 moves to a position where the clamping assembly 5 tightly clamps and fixes the end of the crankshaft, the first transmission assembly 3 will be connected to the second transmission assembly 6. During the movement of the slider 42, the inclined surface of the first abutting member 423 will contact the inclined surface of the second abutting member 442. As the slider 42 continues to move, the first abutting member 423 will drive the limiting rod 4221 out of the limiting hole 411 and compress the first elastic member 4211. The electromagnet 424 is energized and will attract the iron block 4231. When the first transmission assembly 3 and the second transmission assembly 6 are connected, the rotation of the bidirectional lead screw 61 will cause the clamping assembly 5 to rotate through the first transmission assembly 3. When the bidirectional lead screw 61 and the clamping assembly 5 rotate, the movable block 41 will rotate, and the slider 42 will remain positioned in place to keep the clamping assembly 5 in a clamped state of the crankshaft end, ensuring that the clamping assembly 5 can clamp the crankshaft and rotate smoothly between the two pushing portions 43.

[0028] After inspecting the crankshaft, de-energize the electromagnet 424. The iron block 4231 will be released from the attraction of the electromagnet 424, and the limiting rod 4221 will be inserted into the limiting hole 411 under the elastic force of the first elastic member 4211. As the bidirectional lead screw 61 continues to rotate, the movable block 41 and the slider 42 will move away from the clamping assembly 5 and return to their original positions to facilitate the removal of the crankshaft. Among them, the magnitude of the current applied to the electromagnet 424 can be controlled so that the sum of the magnetic attraction of the electromagnet 424 and the elastic force of the second elastic member 443 is greater than the elastic force of the first elastic member 4211, and the elastic force of the first elastic member 4211 is greater than the elastic force of the second elastic member 443. In this way, the limiting rod 4221 can smoothly compress the first elastic member 4211 and disengage from the limiting hole 411. Since it is not easy to see the clamping state of the clamping assembly 5 in the installation box 11, the electromagnet 424 can be kept energized and in an attracting state before inspecting the crankshaft. After inspecting the crankshaft, de-energize the electromagnet 424 to allow the second abutting member 442 to compress the spring again, enabling the limiting rod 4221 to smoothly insert into the limiting hole 411. The aperture of the limiting hole 411 is larger than the cross-sectional diameter of the limiting rod 4221 to facilitate the insertion of the limiting rod 4221 into the limiting hole 411.

[0029] In some embodiments of the present application, the pushing portion 43 includes a connecting body 431 and a pushing body 432. One end of the connecting body 431 is fixedly connected to the slider 42, and the other end is fixedly connected to the pushing body 432. The pushing body 432 is semicircularly arranged, and a plurality of balls 4321 are provided on the surface of the pushing body 432 away from the connecting body 431; the clamping assembly 5 includes two clamping plates arranged in a semicircular shape, and both clamping plates are connected to the first transmission assembly 3 and are located between the two pushing portions 43.

[0030] When the cross-sections of the two pushing bodies 432 are in contact, a complete circle will be formed. When the cross-sections of the two clamping plates are in contact, a complete circle will also be formed. The rolling balls 4321 will be in contact with the surfaces of the two clamping plates facing away from each other. In this way, not only can the end of the crankshaft be firmly clamped, but also the two clamping plates can rotate smoothly between the two pushing bodies 432 and drive the crankshaft to rotate smoothly. The arrangement of the rolling balls 4321 facilitates the rotation of the two clamping plates when the clamping plates clamp the crankshaft. Of course, lubricant can also be applied to the surfaces of the two pushing bodies 432 close to each other to improve the smoothness of the surfaces of the two pushing bodies 432 close to each other, so that the two clamping plates can rotate smoothly when the surfaces of the two pushing bodies 432 close to each other are in contact with the surfaces of the two clamping plates facing away from each other.

[0031] In some embodiments of the present application, the second transmission assembly 6 further includes a third bevel gear 62 provided on the bidirectional lead screw 61. The first transmission assembly 3 includes a mounting seat 32, a rotating cylinder 34, a movable box 31, a rotating column 33, a fourth bevel gear 333, two connecting members 38 and a fixed cylinder 35. The mounting seat 32 is fixedly connected to the inner wall of the mounting box 11. The mounting seat 32 is provided with a through hole 321 and a communication hole that communicate with each other. The third bevel gear 62 is located in the through hole 321. One end of the rotating cylinder 34 is rotatably connected to the inner wall of the communication hole. The inner wall of the rotating cylinder 34 is provided with a plurality of sliding grooves. The movable box 31 is fixedly connected to the other end of the rotating cylinder 34. A plurality of strip-shaped blocks 332 are provided on the outer peripheral wall of the rotating column 33. The strip-shaped blocks 332 are slidably connected to the inner wall of the sliding groove. One end of the rotating column 33 extends into the movable box 31, and the other end extends into the communication hole and the through hole 321 in sequence. The fourth bevel gear 333 is fixedly connected to the other end of the rotating column 33 and can mesh with the third bevel gear 62. The two connecting members 38 are respectively fixedly connected to the two clamping plates. The connecting member 38 partially extends into the movable box 31 and is fixedly connected with a moving plate 381. The moving plate 381 is slidably connected to the inner wall of the movable box 31. The inner top wall of the movable box 31 is provided with a third elastic member 39 fixedly connected to the moving plate 381. The moving plate 381 is connected with a plug rod 3811. The fixed cylinder 35 is fixedly connected to the inner wall of the movable box 31. A fourth elastic member 36 is provided in the fixed cylinder 35. The fourth elastic member 36 is connected with a sliding body 37. The sliding body 37 is slidably connected to the fixed cylinder 35. One end of the sliding body 37 away from the fixed cylinder 35 is rotatably connected to one end of the rotating column 33. One end of the rotating column 33 is provided with an inclined groove 331 corresponding to the plug rod 3811.

[0032] When the two clamping plates approach the end of the crankshaft along the vertical direction, the connecting member 38 and the moving plate 381 will move along the length direction of the rotating cylinder 34 and stretch the third elastic member 39. The inserting rod 3811 will move towards the inclined groove 331. When the inserting rod 3811 moves from the higher part of the inclined groove 331 to the lower part of the inclined groove 331, the rotating column 33 will move along the horizontal direction towards the bidirectional lead screw 61. When the fourth bevel gear 333 on the rotating column 33 meshes with the third bevel gear 62, the rotation of the rotating column 33 will cause the rotating cylinder 34 to rotate through the strip-shaped block 332, and then cause the two connecting members 38 and the two clamping plates to rotate, and realize the rotation of the crankshaft. After the crankshaft is inspected, the moving plate 381 moves away from the rotating cylinder 34 under the elastic force of the third elastic member 39, so that the inserting rod 3811 disengages from the inclined groove 331. Furthermore, the rotating column 33 will move away from the bidirectional lead screw 61 under the elastic force of the fourth elastic member 36, so that the fourth bevel gear 333 disengages from the third bevel gear 62.

[0033] In some embodiments of the present application, the third transmission assembly 7 includes a fixed seat 71, two mounting bodies 74, a movable cylinder 72, two rotating rods 73, two fifth bevel gears 732 and two sixth bevel gears 75. The fixed seat 71 is arranged on the support assembly 1; the two mounting bodies 74 are respectively connected to the tops of the two mounting boxes 11; the movable cylinder 72 is rotatably penetrated through the fixed seat 71, and a plurality of driving grooves are provided on the inner wall of the movable cylinder 72; a plurality of driving plates 731 are provided on the outer peripheral walls of the two rotating rods 73, and the driving plates 731 are slidably connected to the inner walls of the driving grooves. The rotating rods 73 are rotatably penetrated through the mounting bodies 74; the two fifth bevel gears 732 are respectively fixedly connected to the two rotating rods 73; the two sixth bevel gears 75 are respectively fixedly connected to one ends of the two bidirectional lead screws 61 and respectively mesh with the two fifth bevel gears 732.

[0034] When the two mounting boxes 11 approach or move away from each other, the rotating rods 73 will move in the movable cylinder 72, and the driving plates 731 will move along the horizontal direction in the driving grooves. When one of the two bidirectional lead screws 61 rotates, the sixth bevel gear 75 will cooperate with the fifth bevel gear 732 to rotate the rotating rod 73. The movable cylinder 72 is rotated through the driving plates 731 and the driving grooves. When the movable cylinder 72 rotates, the other rotating rod 73 will be rotated through the driving grooves and the driving plates 731, and then the other of the two bidirectional lead screws 61 will rotate. In this way, it can be ensured that after adjusting the distance between the two mounting boxes 11, only the operation of one driving motor 21 can also rotate the two bidirectional lead screws 61.

[0035] In some embodiments of the present application, the support portion 12 includes two brackets 122 and a placement plate 121. The two ends of the placement plate 121 are respectively fixedly connected to the tops of the two brackets 122. The placement plate 121 abuts against the two mounting boxes 11. The placement plate 121 is provided with two sliding holes 1211. A moving body 83 is slidably connected to the inner wall of the sliding hole 1211. The moving body 83 is fixedly connected to the mounting box 11. The bracket 122 is provided with a cross plate. A hydraulic cylinder 8 is fixedly connected to the cross plate. A placement plate 81 is provided at the telescopic end of the hydraulic cylinder 8. Two connecting rods 82 are rotatably connected to the placement plate 81. The connecting rods 82 are rotatably connected to the moving body 83. By starting the hydraulic cylinder 8, the telescopic end moves to make the placement plate 81 move in the vertical direction, and then the distance between the two mounting boxes 11 is automatically adjusted through the two connecting rods 82 and the moving body 83, saving manpower.

[0036] In some embodiments of the present application, a support block 97 is movably provided on the placement plate 121. An inspection cylinder 9 for the crankshaft to pass through is provided on the support block 97. A probe 95 for inspecting the crankshaft is provided on the inner wall of the inspection cylinder 9. One end of the other of the two bidirectional lead screws 61 is provided with a cam 612. A fixed block 1213 and a mounting block are provided on the bottom surface of the placement plate 121. The fixed block 1213 is provided with a receiving cavity. A fifth elastic member 12131 is provided in the receiving cavity. A sliding rod 12132 is movably inserted through the mounting block. One end of the sliding rod 12132 extends into the receiving cavity and is fixedly connected to the fifth elastic member 12131. The other end is provided with a pulley 6121 that abuts against the cam 612. A vertical plate 971 is provided on the sliding rod 12132. A sliding hole 1212 is provided on the placement plate 121. The inner wall of the sliding hole 1212 is slidably connected to the vertical plate 971. The vertical plate 971 is fixedly connected to the support block 97.

[0037] Only by starting the drive motor 21 to rotate the bidirectional lead screw 61 can the cam 612 also be rotated, causing the sliding rod 12132 to reciprocate in the horizontal direction, and then causing the vertical plate 971 and the support block 97 to reciprocate in the horizontal direction, so that the inspection cylinder 9 reciprocates in the horizontal direction, facilitating the automatic movement of the probe 95 to detect the crankshaft and reducing the labor intensity of workers for holding the probe 95 to inspect the crankshaft. Among them, when the two mounting boxes 11 approach each other, the cam 612 will push the sliding rod 12132. One end of the sliding rod 12132 will compress the fifth elastic member 12131 and move a certain distance in the receiving cavity. When the cam 612 rotates, the sliding rod 12132 will still compress the fifth elastic member 12131 again and reciprocate in the horizontal direction.

[0038] In some embodiments of the present application, air supply hoods 111 are fixedly connected to the tops of both installation boxes 11. A plurality of fan blades 611 are provided on the part of the bidirectional lead screw 61 located inside the air supply hood 111. A corrugated pipe 1111 is connected to the side wall of the air supply hood 111; two air supply pipes 94 are fixedly connected to the inspection cylinder 9. One end of the air supply pipe 94 is connected to the corrugated pipe 1111. An annular air supply cavity 93 extending in a ring shape is provided inside the inspection cylinder 9. The air supply cavity 93 is communicated with the air supply pipe 94. An annular sealing plug 91 is movably provided inside the air supply cavity 93. A plurality of first air spray holes 92 and a plurality of second air spray holes 96 are respectively provided on the inner walls at both ends of the inspection cylinder 9; the support part 12 further includes a support frame 123 fixedly connected to the placement plate 121. The support frame 123 is provided with a second through hole 1231 for the crankshaft to pass through. The support frame 123 is provided with a fixing rod 1232. A part of the fixing rod 1232 extends into the air supply cavity 93 and is fixedly connected to the sealing plug.

[0039] When the bidirectional lead screw 61 rotates, the plurality of fan blades 611 rotate to send gas into the air supply cavity 93 of the inspection cylinder 9 through the corrugated pipe 1111 and the air supply pipe 94. When the inspection cylinder 9 moves horizontally, the space of the gas in the air supply cavity 93 will be reduced, and then the gas will be sprayed onto the crankshaft through the plurality of first air spray holes 92. When the inspection cylinder 9 moves in the reverse direction, the gas will be sprayed onto the crankshaft through the plurality of second air spray holes 96. In this way, when the inspection cylinder 9 reciprocates horizontally, the gas will pass back and forth through the first air spray holes 92 and the second air spray holes 96 and be sprayed onto the crankshaft, effectively cleaning the dust and impurities attached to the surface of the crankshaft, so that the crankshaft is convenient to be inspected.

[0040] Among them, the plurality of first air spray holes 92 and the plurality of second air spray holes 96 are both communicated with the air supply cavity 93. The drive shaft 22 and the first bevel gear 23 can be located inside the air supply hood 111. The air supply pipe 94 can be a rigid pipe arranged in an L shape. The top of the air supply hood 111 can be fixedly connected to the installation body 74. The support frame 123 can be arranged in a U shape. The support frame 123 is provided with two second through holes 1231. The top of the support frame 123 is fixedly connected to the fixed seat 71.

[0041] Working principle: When in use, the crankshaft is passed through the second through hole 1231 on the support frame 123 and the inspection tube 9 to support the crankshaft first, and then the hydraulic cylinder 8 is started. During the extension and retraction process, the telescopic end of the hydraulic cylinder 8 will move the moving plate 381 and the mounting box in the horizontal direction through the connecting rod 82, thereby adjusting the distance between the two mounting boxes 11 to adapt to the length of the crankshaft on the support frame 123, so that the end of the crankshaft extends into the mounting box 11 and is located between the two clamping plates. The drive motor 21 is started, and the second bevel gear 24 and one of the two bidirectional screws 61 are rotated through the drive shaft 22 and the first bevel gear 23. The rotation of the bidirectional screw 61 causes the movable block 41 and the sliding block to move toward the clamping plate, and the multiple balls 4321 on the push body 432 will contact the clamping plate and cause the two clamping plates to clamp the ends of the crankshaft when the push body 432 continues to move. The connecting piece 38 will move toward the rotating column 33 along with the clamping plate, and the insert rod 3811 will be inserted into the inclined groove 331 on the rotating column 33 and make the rotating column 33 move toward the bidirectional screw rod 61, so that the fourth bevel gear 333 and the third bevel gear 62 can be engaged, and then the rotating cylinder 34 and the movable box 31 can be rotated, so that the two clamping plates can rotate and realize the rotation of the crankshaft.

[0042] After contacting the second abutment 442, the first abutment 423 will move in the horizontal direction and disengage the limiting rod 4221 from the limiting hole 411, the electromagnet 424 will attract the iron block 4231, the movable block 41 can rotate with the bidirectional screw 61, and the slider 42 will remain in the position where the clamping plate clamps the end of the crankshaft.

[0043] When the bidirectional screw 61 rotates, the multiple blades 611 rotate and can blow air into the bellows 1111. The rotation of the bidirectional screw 61 will also cause the cam 612 to rotate synchronously, thereby causing the slide bar 12132 to reciprocate in the horizontal direction, and the inspection tube 9 to reciprocate in the horizontal direction. During the movement of the inspection tube 9, the annular sealing plug 91 will cooperate with the annular sealing plug 91 to spray gas to the crankshaft through the first jet hole 92 and the second jet hole 96. The probe 95 on the inner wall of the inspection tube 9 will inspect the crankshaft as the inspection tube 9 moves. When the crankshaft inspection is completed, the electromagnet 424 is de-energized, and the limit rod 4221 will be inserted into the limit hole 411 under the elastic force of the first elastic member 4211. Then, as the screw continues to rotate, the slider 42 and the movable block 41 can gradually move away from the clamping plate, so that the clamping plate is away from the crankshaft under the elastic force of the third elastic member 39, so as to facilitate the removal of the crankshaft.

[0044] In the drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and cannot be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0045] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A support device for crankshaft inspection, characterized in that: include: A support assembly (1) comprises a support portion (12) and two installation boxes (11), wherein surfaces of the two installation boxes (11) close to each other are both provided with a first through hole (112) for a crankshaft to pass through; A driving assembly (2) is arranged in one of the two installation boxes (11); Two first transmission components (3) are respectively arranged in the two installation boxes (11); Two push-pushing components (4) are movably disposed in the two installation boxes (11) respectively; Two clamping assemblies (5) are movably disposed in the two installation boxes (11) respectively, and the clamping assemblies (5) are connected to the first transmission assembly (3); Two second transmission assemblies (6) are respectively arranged in the two installation boxes (11), one of the two second transmission assemblies (6) is connected to the driving assembly (2), and the second transmission assembly (6) is connected to the push assembly (4) to enable the push assembly (4) to move in a vertical direction so that the clamping assembly (5) is close to the end of the crankshaft, so that when the clamping assembly (5) clamps the end of the crankshaft, the second transmission assembly (6) can be connected to the first transmission assembly (3) and cooperate with the first transmission assembly (3) to rotate the clamping assembly (5); and, A third transmission assembly (7) is arranged on the support assembly (1), the third transmission assembly (7) is connected to the two second transmission assemblies (6), and the two installation boxes (11) are slidably connected to the support portion (12) so as to be able to adjust the distance between the two installation boxes (11).

2. The support device for crankshaft inspection according to claim 1, characterized in that: The second transmission assembly (6) comprises a bidirectional screw rod (61), wherein the bidirectional screw rod (61) is rotatably arranged in the installation box (11), and the driving assembly (2) comprises: A driving motor (21) installed in one of the two installation boxes (11); A drive shaft (22), one end of which is fixedly connected to the output shaft of the drive motor (21); A first bevel gear (23) is fixedly connected to the other end of the drive shaft (22); and The second bevel gear (24) is fixedly connected to the bidirectional screw rod (61) and meshes with the first bevel gear (23).

3. The support device for crankshaft inspection according to claim 2, characterized in that: The push assembly (4) comprises: Two movable blocks (41) are respectively threadedly connected to the two ends of the bidirectional screw rod (61); the outer peripheral wall of the movable block (41) is provided with a plurality of limiting holes (411) arranged in an annular manner and spaced apart; Two sliders (42) are slidably connected to the inner wall of the installation box (11), and the two sliders (42) are fixedly connected to a mounting ring (412), and the mounting ring (412) is rotatably sleeved on the outer peripheral wall of the movable block (41); the slider (42) is provided with a first slide groove (421), a second slide groove (422) and a through hole extending in a horizontal direction, and the first slide groove (421) and the through hole are both connected to the second slide groove (422), and the first slide groove (421) is provided with A first elastic member (4211) is fixedly connected to a limiting rod (4221), one end of the limiting rod (4221) is slidably connected to the inner wall of the first sliding groove (421), and the other end can correspond to the limiting hole (411); the outer wall of the limiting rod (4221) is provided with a first abutment member (423) passing through the through hole, the inner wall of the through hole is provided with an electromagnet (424), and the first abutment member (423) is provided with an iron block (4231); Two fixing plates (44) are fixedly connected to the inner wall of the installation box (11); a mounting tube (441) is provided on the fixing plate (44); a second elastic member (443) is provided inside the mounting tube (441); the second elastic member (443) is fixedly connected to a second abutting member (442); the second abutting member (442) is slidably connected to the inner wall of the mounting tube (441); surfaces of the first abutting member (423) and the second abutting member (442) that are close to each other are inclined; and, Two pushing parts (43) are fixedly connected to the sliding block (42) and are capable of abutting against the clamping assembly (5).

4. The support device for crankshaft inspection according to claim 3, characterized in that: The pushing portion (43) comprises a connecting body (431) and a pushing body (432); one end of the connecting body (431) is fixedly connected to the sliding block (42), and the other end is fixedly connected to the pushing body (432); the pushing body (432) is arranged in a semicircular shape, and a plurality of balls (4321) are arranged on a surface of the pushing body (432) away from the connecting body (431); The clamping assembly (5) comprises two clamping plates arranged in a semicircular shape, and the two clamping plates are both connected to the first transmission assembly (3) and are located between the two pushing parts (43).

5. The support device for crankshaft inspection according to claim 4, characterized in that: The second transmission assembly (6) further comprises a third bevel gear (62) arranged on the bidirectional screw rod (61), and the first transmission assembly (3) comprises: A mounting seat (32) fixedly connected to the inner wall of the mounting box (11), the mounting seat (32) being provided with a through hole (321) and a connecting hole that are interconnected, and the third bevel gear (62) is located in the through hole (321); A rotating cylinder (34), one end of which is rotatably connected to the inner wall of the communicating hole, and the inner wall of the rotating cylinder (34) is provided with a plurality of sliding grooves; A movable box (31) is fixedly connected to the other end of the rotating cylinder (34); A rotating column (33), the outer peripheral wall of which is provided with a plurality of strip blocks (332), the strip blocks (332) being slidably connected to the inner wall of the sliding groove, one end of the rotating column (33) extending into the movable box (31), and the other end extending into the connecting hole and the through hole (321) in sequence; a fourth bevel gear (333) fixedly connected to the other end of the rotating column (33) and capable of meshing with the third bevel gear (62); Two connecting members (38) are fixedly connected to the two clamping plates respectively, the connecting member (38) partially extends into the movable box (31) and is fixedly connected to a movable plate (381), the movable plate (381) is slidably connected to the inner wall of the movable box (31), the inner top wall of the movable box (31) is provided with a third elastic member (39) fixedly connected to the movable plate (381), and the movable plate (381) is connected to an insertion rod (3811); and, A fixed cylinder (35) is fixedly connected to the inner wall of the movable box (31); a fourth elastic member (36) is provided inside the fixed cylinder (35); the fourth elastic member (36) is connected to a sliding body (37); the sliding body (37) is slidably connected to the fixed cylinder (35); one end of the sliding body (37) away from the fixed cylinder (35) is rotatably connected to one end of the rotating column (33); one end of the rotating column (33) is provided with an inclined groove (331) corresponding to the insertion rod (3811).

6. The crankshaft inspection support device according to claim 2, characterized in that: The third transmission assembly (7) comprises: A fixing seat (71) is arranged on the supporting assembly (1); Two installation bodies (74) are respectively connected to the tops of the two installation boxes (11); A movable cylinder (72) is rotatably mounted on the fixed seat (71), and a plurality of driving grooves are arranged on the inner wall of the movable cylinder (72); Two rotating rods (73), the outer peripheral wall of which is provided with a plurality of driving plates (731), the driving plates (731) are slidably connected with the inner wall of the driving groove, and the rotating rods (73) are rotatably provided in the mounting body (74); Two fifth bevel gears (732) are fixedly connected to the two rotating rods (73) respectively; and The two sixth bevel gears (75) are respectively fixedly connected to one end of the two bidirectional screw rods (61) and are respectively meshed with the two fifth bevel gears (732).

7. The support device for crankshaft inspection according to claim 6, characterized in that: The support portion (12) comprises two brackets (122) and a placement plate (121), the two ends of the placement plate (121) are respectively fixedly connected to the tops of the two brackets (122), the placement plate (121) is in contact with the two installation boxes (11), the placement plate (121) is provided with two sliding holes (1211), the inner walls of the sliding holes (1211) are slidably connected with a moving body (83), and the moving body (83) is fixedly connected to the installation box (11); The bracket (122) is provided with a transverse plate, the transverse plate is fixedly connected to a hydraulic cylinder (8), the telescopic end of the hydraulic cylinder (8) is provided with a placement plate (81), the placement plate (81) is rotatably connected to two connecting rods (82), and the connecting rods (82) are rotatably connected to the moving body (83).

8. The support device for crankshaft inspection according to claim 7, characterized in that: The placement plate (121) is movably provided with a support block (97), the support block (97) is provided with an inspection cylinder (9) for the crankshaft to pass through, and the inner wall of the inspection cylinder (9) is provided with a probe (95) for inspecting the crankshaft; The other end of one of the two bidirectional screw rods (61) is provided with a cam (612), the bottom surface of the placement plate (121) is provided with a fixing block (1213) and a mounting block, the fixing block (1213) is provided with a receiving cavity, a fifth elastic member (12131) is provided in the receiving cavity, a sliding rod (12132) is movably passed through the mounting block, one end of the sliding rod (12132) extends into the receiving cavity and is fixedly connected to the fifth elastic member (12131), and the other end is provided with a pulley (6121) abutting against the cam (612), the sliding rod (12132) is provided with a vertical plate (971), the placement plate (121) is provided with a sliding hole (1212), the inner wall of the sliding hole (1212) is slidably connected to the vertical plate (971), and the vertical plate (971) is fixedly connected to the support block (97).

9. The crankshaft inspection support device according to claim 8, characterized in that: The tops of the two installation boxes (11) are fixedly connected to an air supply cover (111); the portion of the bidirectional screw rod (61) located inside the air supply cover (111) is provided with a plurality of fan blades (611); and the side wall of the air supply cover (111) is connected to a bellows (1111); Two air supply pipes (94) are fixedly connected to the inspection tube (9), one end of each air supply pipe (94) is connected to the bellows (1111), a circular air supply cavity (93) is provided in the inspection tube (9), the air supply cavity (93) is communicated with the air supply pipe (94), an annular sealing plug (91) is movably provided in the air supply cavity (93), and a plurality of first air injection holes (92) and a plurality of second air injection holes (96) are respectively provided on the inner walls at both ends of the inspection tube (9); The support portion (12) further comprises a support frame (123) fixedly connected to the placement plate (121), the support frame (123) being provided with a second through hole (1231) for the crankshaft to pass through, the support frame (123) being provided with a fixing rod (1232), the fixing rod (1232) partially extending into the air delivery cavity (93) and being fixedly connected to the annular sealing plug (91).

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