CN112336134B

CN112336134B - Automobile rear axle display stand

Info

Publication number: CN112336134B
Application number: CN202011278893.8A
Authority: CN
Inventors: 段凯旋
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2022-10-14
Anticipated expiration: 2040-11-19
Also published as: CN112336134A

Abstract

The invention discloses an automobile rear axle display stand which comprises a rear axle containing box and universal wheels positioned around the bottom of the rear axle containing box, wherein a lifting display stand is slidably mounted in the rear axle containing box, a containing mechanism is arranged at the bottom of the lifting display stand, an automobile rear axle is mounted on the lifting display stand, and an adjusting display mechanism is arranged at the bottom of the automobile rear axle. The automobile rear axle display platform has the advantages that the automobile rear axle display platform can be automatically unfolded or protected in a storage mode through the storage mechanism located at the bottom of the lifting display platform, dust is prevented from being generated when the automobile rear axle display platform is placed for a long time, manual cleaning labor force is reduced, the lifting display platform and the sealing door plate are of a linkage structure, cost of equipment is reduced, the adjusting display mechanism at the bottom of the automobile rear axle can enable a student to visually know transmission principles among components of the automobile rear axle and working states of a rear axle system when automobile rear wheels are steered, and teaching quality is improved.

Description

Automobile rear axle display stand

Technical Field

The invention relates to the field of automobile teaching aids, in particular to an automobile rear axle display stand.

Background

The automobile rear axle is the rear axle of the automobile. In the case of a front-axle driven vehicle, the rear axle is only a trailing axle and only plays a role of load bearing. If the front axle is not a drive axle, the rear axle is a drive axle, which in addition to the load-bearing function also serves as a drive and deceleration function as well as a differential function, and if the front axle is four-wheel drive, a transfer case is generally arranged in front of the rear axle.

The automobile rear axle display platform generally comprises a rear axle system, a transmission shaft and other main parts, such as a movable rack and the like, and is suitable for training the professional actual operation skills of automobiles at all levels. However, when the trainees are subjected to practical training display, the trainees cannot visually know the transmission principle among all parts of the automobile rear axle and the working state of the rear axle system when the automobile rear wheels are steered, and the automobile rear axle cannot be effectively stored and protected after the trainees are displayed.

Disclosure of Invention

Aiming at the defects, the invention provides an automobile rear axle display stand to solve the problem of automobile rear axle display teaching.

In order to achieve the purpose, the invention adopts the following technical scheme:

an automobile rear axle display stand comprises a rear axle containing box and universal wheels positioned around the bottom of the rear axle containing box, wherein a lifting display stand is slidably mounted in the rear axle containing box, a containing mechanism is arranged at the bottom of the lifting display stand, an automobile rear axle is mounted on the lifting display stand, and an adjusting display mechanism is arranged at the bottom of the automobile rear axle;

the containing mechanism comprises an electric hydraulic rod, a push plate, a support frame, a group of opposite sliding guide rails I, a group of opposite connecting rods I, a roller I, a group of opposite sliding guide rails II, a group of opposite sealing door plates, a group of opposite roller II, a connecting block I, a fixed end shaft, a group of opposite pulleys, a pulling loop rod, a sliding rod, a limiting block, a connecting block II and a steel wire pull rope, wherein the electric hydraulic rod is vertically arranged at the bottom in the rear axle containing box, the telescopic end of the electric hydraulic rod is vertically upward, the push plate is arranged at the telescopic end of the electric hydraulic rod, the support frame is arranged on the push plate, the upper end of the support frame is connected with the lifting display platform, the group of opposite sliding guide rails I are vertically arranged on the opposite inner side walls of the rear axle containing box, the group of opposite connecting rods I are transversely arranged at two sides of the push plate, and the roller I is arranged at the front end of the connecting rods, the sliding guide rail I is slidably mounted, a group of opposite sliding guide rails II is transversely mounted at the upper end of the inner wall of the rear axle containing box, the rear ends of a group of opposite sealing door plates are movably hinged to the sliding guide rails II, a group of opposite rolling wheels II is mounted at the front end of the sealing door plates and is slidably mounted in the sliding guide rails II, the connecting block I is mounted at the bottom of the connecting rod I, the fixed end shaft is mounted at the bottom of the sealing door plates, a group of opposite pulleys is mounted at two sides of the bottom in the rear axle containing box, the pulling loop rod is movably hinged at the bottom of the fixed end shaft, the upper end of the sliding rod is movably inserted in the pulling loop rod, the lower end of the sliding rod extends out of the pulling loop rod, the limiting block is mounted at the upper end of the sliding rod, the connecting block II is mounted at the lower end of the sliding rod, one end of the steel wire pull rope is connected with the connecting block I and the other end of the connecting block II and is sleeved on the pulleys;

the adjusting and displaying mechanism comprises a double-shaft-extension asynchronous motor, a driving gear I, a driven shaft, a driven gear I, a cam, a group of opposite rotating shafts I, a connecting rod II, a synchronous mounting frame, a steering rod I, a steering rod II, a group of opposite fixed blocks, a push rod, a push plate, a group of opposite sliding chutes, a sliding plate, a meshing gear I, a rack I, a group of opposite rotating shafts II, a meshing gear II, a rack II, an L-shaped connecting rod and a clamping plate, wherein the double-shaft-extension asynchronous motor is horizontally arranged on a lifting display platform, the driving gear I is arranged on the rear end shaft of the double-shaft-extension asynchronous motor, the driven shaft is movably arranged on one side of the double-shaft-extension asynchronous motor, the driven gear I is arranged on the driven shaft and is mutually meshed with the driving gear I, the cam is arranged at the front end of the driven shaft, and the group of opposite rotating shafts I is vertically arranged at the front end of the lifting display platform, the second connecting rod is installed at the upper end of the first rotating shaft, the synchronous mounting frame is installed at the front end of the second connecting rod, the first steering rod is installed at the front end of the synchronous mounting frame, the second steering rod is movably hinged at the front end of the first steering rod, a group of opposite fixing blocks are installed at the rear end of the lifting display platform, the pushing rod is movably inserted in the fixing blocks, the rear end of the pushing rod is movably hinged with the first steering rod, the pushing plate is installed at the front end of the first steering rod and corresponds to the cam in position, a group of opposite sliding grooves are formed in the front end of the lifting display platform, the sliding plate is slidably installed on the sliding grooves, the first meshing teeth are uniformly installed on the outer surface of the front end of the first rotating shaft, the first rack is installed on one side of the front end of the sliding plate and is mutually meshed with the first meshing teeth, a group of opposite rotating shafts are movably installed on one side of the first rotating shaft, and the second meshing teeth are uniformly installed on the outer surface of the front end of the second rotating shaft, the second rack is installed on the other side of the front end of the sliding plate and meshed with the second meshing gear, the L-shaped connecting rod is installed at the upper end of the second rotating shaft, and the clamping plate is installed at the front end of the L-shaped connecting rod.

Furthermore, a set of opposite supporting platforms is installed on two sides of the bottom of the automobile rear axle.

Furthermore, the sealing door plate is formed by a door plate I and a door plate II, and the door plate I and the door plate II are movably hinged through a connecting rotating shaft.

Furthermore, a stop block is arranged in the second sliding guide rail and used for limiting the position of the second roller.

Furthermore, the upper end of the sliding rod is sleeved with a first spring, one end of the first spring is connected with the inner wall of the pulling sleeve rod, and the other end of the first spring is connected with the limiting block.

Furthermore, a pulling handle is installed on the sealing door plate, and a door plate lock is installed on one side of the pulling handle.

Furthermore, the automobile rear axle is composed of a speed reducer, a differential mechanism, a group of opposite half shafts, a universal joint and tires.

Furthermore, the upper surface of the synchronous mounting frame is provided with a rectangular groove, a group of opposite through grooves are formed in the opposite inner walls of the rectangular groove, a group of opposite transmission shafts are rotatably mounted at two ends of each through groove, a transmission belt is sleeved on each transmission shaft, and the transmission belt is in friction contact with a tire.

Furthermore, outer teeth are uniformly arranged at two ends of the transmission shaft, and inner teeth meshed with the outer teeth are uniformly arranged at two ends of the bottom of the transmission belt.

Furthermore, a second spring is sleeved at the front end of the pushing rod, one end of the second spring is connected with the fixed block, and the other end of the second spring is connected with the pushing plate.

Furthermore, a set of opposite arc-shaped sliding grooves is formed in the upper surface of the lifting display platform, and the bottom of the synchronous mounting rack is slidably mounted on the arc-shaped sliding grooves through rollers.

The invention provides an automobile rear axle display stand, which has the following beneficial effects that the automobile rear axle display stand can be automatically unfolded or stored and protected by a storage mechanism positioned at the bottom of a lifting display stand, dust generated when the automobile rear axle display stand is placed for a long time is prevented, manual cleaning labor force is reduced, the lifting display stand and a sealing door plate are in a linkage structure, the cost of equipment is reduced, and an adjusting display mechanism at the bottom of the automobile rear axle can visually allow a student to know the transmission principle among all parts of the automobile rear axle and the working state of a rear axle system when automobile rear wheels are steered, so that the teaching quality is improved.

Drawings

FIG. 1 is a schematic view of a rear axle display stand for an automobile according to the present invention.

FIG. 2 is a schematic view of the closure panel of the present invention shown deployed.

Fig. 3 is a schematic diagram of the lifting display platform of the present invention.

FIG. 4 is a top view of the elevating display stand of the present invention.

FIG. 5 is a right turn schematic view of a tire according to the present invention.

Fig. 6 is a left turn schematic view of a tire according to the present invention.

FIG. 7 is a top view of a closure panel according to the present invention.

Fig. 8 is a top view of the rear axle of the automobile according to the present invention.

Fig. 9 is a schematic view of the sliding plate according to the present invention.

FIG. 10 is a schematic of the belt drive of the present invention.

Fig. 11 is a schematic view of the arc chute of the present invention.

In the figure: 1. a rear axle storage box; 2. a universal wheel; 3. lifting the display platform; 4. a rear axle of the automobile; 5. an electro-hydraulic lever; 6. a push plate; 7. a support frame; 8. a first sliding guide rail; 9. a first connecting rod; 10. a first roller; 11. a second sliding guide rail; 12. a sealing door panel; 13. a second roller; 14. a first connecting block; 15. a fixed end shaft; 16. a pulley; 17. pulling the loop bar; 18. a slide bar; 19. a limiting block; 20. a second connecting block; 21. a steel wire rope; 22. a double-shaft extension asynchronous motor; 23. a first driving gear; 24. a driven shaft; 25. a first driven gear; 26. a cam; 27. a first rotating shaft; 28. a second connecting rod; 29. a synchronous mounting rack; 30. a first steering rod; 31. a second steering rod; 32. a fixed block; 33. a push rod; 34. a push plate; 35. a chute; 36. a sliding plate; 37. meshing a first tooth; 38. a first rack; 39. a second rotating shaft; 40. a second meshing tooth; 41. a second rack; 42. an L-shaped connecting rod; 43. a clamping plate; 44. a support table; 45. a first door panel; 46. a second door panel; 47. connecting the rotating shaft; 48. a stop block; 49. a first spring; 50. pulling the handle; 51. a door panel lock; 52. a speed reducer; 53. a differential mechanism; 54. a half shaft; 55. a universal joint; 56. a tire; 57. a rectangular groove; 58. a through groove; 59. a drive shaft; 60. a transmission belt; 61. an outer tooth; 62. internal teeth; 63. a second spring; 64. an arc chute.

Detailed Description

The invention is described in detail below with reference to the accompanying drawings, as shown in FIGS. 1-11: an automobile rear axle display stand comprises a rear axle storage box 1 and universal wheels 2 positioned around the bottom of the rear axle storage box 1, wherein a lifting display stand 3 is slidably mounted in the rear axle storage box 1, a storage mechanism is arranged at the bottom of the lifting display stand 3, an automobile rear axle 4 is mounted on the lifting display stand 3, and an adjusting display mechanism is arranged at the bottom of the automobile rear axle 4;

the containing mechanism comprises an electric hydraulic rod 5, a push plate 6, a support frame 7, a group of opposite sliding guide rails I8, a group of opposite connecting rods I9, a group of rollers I10, a group of opposite sliding guide rails II 11, a group of opposite sealing door plates 12, a group of opposite rollers II 13, a connecting block I14, a fixed end shaft 15, a group of opposite pulleys 16, a pulling loop bar 17, a sliding rod 18, a limiting block 19, a connecting block II 20 and a steel wire pull rope 21, wherein the electric hydraulic rod 5 is vertically arranged at the bottom in the rear axle containing box 1, the telescopic end of the electric hydraulic rod is vertically upward, the push plate 6 is arranged at the telescopic end of the electric hydraulic rod 5, the support frame 7 is arranged on the push plate 6, the upper end of the support frame is connected with the lifting display platform 3, the group of opposite sliding guide rails I8 is vertically arranged on the opposite inner side walls of the rear axle containing box 1, the group of opposite connecting rods I9 is transversely arranged at two sides of the push plate 6, the roller wheel I10 is arranged at the front end of the connecting rod I9 and is slidably arranged in the sliding guide rail I8, a group of opposite sliding guide rails II 11 is transversely arranged at the upper end of the inner wall of the rear axle containing box 1, a group of opposite sealing door plates 12 is movably hinged on the sliding guide rails II 11 at the rear end, a group of opposite roller wheels II 13 is arranged at the front end of the sealing door plates 12 and is slidably arranged in the sliding guide rails II 11, the connecting block I14 is arranged at the bottom of the connecting rod I9, the fixed end shaft 15 is arranged at the bottom of the sealing door plates 12, a group of opposite pulleys 16 are arranged at two sides of the bottom in the rear axle containing box 1, the pulling loop bar 17 is movably hinged at the bottom of the fixed end shaft 15, the upper end of the sliding bar 18 is movably inserted in the pulling loop bar 17, the lower end of the sliding bar extends out of the pulling loop bar 17, the limiting block 19 is arranged at the upper end of the sliding bar 18, and the connecting block II 20 is arranged at the lower end of the sliding bar 18, one end of the steel wire pull rope 21 is connected with the first connecting block 14, the other end of the steel wire pull rope is connected with the second connecting block 20, and the steel wire pull rope is sleeved on the pulley 16;

the adjusting and displaying mechanism comprises a double-shaft-extension asynchronous motor 22, a driving gear I23, a driven shaft 24, a driven gear I25, a cam 26, a group of opposite rotating shafts I27, a connecting rod II 28, a synchronous mounting frame 29, a steering rod I30, a steering rod II 31, a group of opposite fixing blocks 32, a pushing rod 33, a pushing plate 34, a group of opposite sliding grooves 35, a sliding plate 36, a meshing gear I37, a rack I38, a group of opposite rotating shafts II 39, a meshing gear II 40, a rack II 41, an L-shaped connecting rod 42 and a clamping plate 43, wherein the double-shaft-extension asynchronous motor 22 is horizontally arranged on the lifting and displaying platform 3, the driving gear I23 is arranged on the rear end shaft of the double-shaft-extension asynchronous motor 22, the driven shaft 24 is movably arranged on one side of the double-shaft-extension asynchronous motor 22, the driven gear I25 is arranged on the driven shaft 24 and is mutually meshed with the driving gear I23, the cam 26 is arranged at the front end of the driven shaft 24, a group of opposite rotating shafts 27 are vertically arranged at the front end of the lifting display platform 3, the connecting rods 28 are arranged at the upper end of the rotating shafts 27, the synchronous mounting frame 29 is arranged at the front end of the connecting rods 28, the steering rods 30 are arranged at the front end of the synchronous mounting frame 29, the steering rods 31 are movably hinged at the front end of the steering rods 29, a group of opposite fixing blocks 32 are arranged at the rear end of the lifting display platform 3, the pushing rods 33 are movably inserted in the fixing blocks 32, the rear ends of the pushing rods are movably hinged with the steering rods 30, the pushing plate 34 is arranged at the front end of the steering rods 30 and corresponds to the cam 26 in position, a group of opposite sliding grooves 35 are arranged at the front end of the lifting display platform 1, the sliding plate 36 is slidably arranged on the sliding grooves 35, and the meshing teeth 37 are uniformly arranged on the outer surface of the front end of the rotating shafts 27, the first rack 38 is arranged on one side of the front end of the sliding plate 36 and is meshed with the first meshing gear 37, the second opposite rotating shaft 39 is movably arranged on one side of the first rotating shaft 27, the second meshing gear 40 is uniformly arranged on the outer surface of the front end of the second rotating shaft 39, the second rack 41 is arranged on the other side of the front end of the sliding plate 36 and is meshed with the second meshing gear 40, the L-shaped connecting rod 42 is arranged at the upper end of the second rotating shaft 39, and the clamping plate 43 is arranged at the front end of the L-shaped connecting rod 42.

A set of opposing support platforms 44 are mounted on opposite sides of the bottom of the rear axle 4 of the vehicle.

The sealing door panel 12 is formed by a first door panel 45 and a second door panel 46, and the first door panel 45 and the second door panel 46 are movably hinged through a connecting rotating shaft 47.

And a stop block 48 is arranged in the second sliding guide rail 11, and the stop block 48 is used for limiting the position of the second roller 13.

The upper end of the sliding rod 18 is sleeved with a first spring 49, one end of the first spring 49 is connected with the inner wall of the pulling loop rod 17, and the other end of the first spring 49 is connected with the limiting block 19.

The sealing door panel 12 is provided with a pulling handle 50, and a door panel lock 51 is arranged on one side of the pulling handle 50.

The rear axle 4 of the vehicle is formed by a reduction gear 52, a differential 53, a set of opposing half shafts 54, a universal joint 55 and tires 56.

The upper surface of the synchronous mounting frame 29 is provided with a rectangular groove 57, the opposite inner wall of the rectangular groove 57 is provided with a group of opposite through grooves 58, two ends of the inside of each through groove 58 are rotatably provided with a group of opposite transmission shafts 59, each transmission shaft 59 is sleeved with a transmission belt 60, and the transmission belts 60 are in friction contact with the tires 56.

Outer teeth 61 are uniformly arranged at two ends of the transmission shaft 59, and inner teeth 62 meshed with the outer teeth 61 are uniformly arranged at two ends of the bottom of the transmission belt 60.

The front end of the pushing rod 33 is sleeved with a second spring 63, one end of the second spring 63 is connected with the fixed block 32, and the other end of the second spring 63 is connected with the pushing plate 34.

The upper surface of the lifting display platform 3 is provided with a group of opposite arc-shaped sliding grooves 64, and the bottom of the synchronous mounting rack 29 is slidably mounted on the arc-shaped sliding grooves 64 through rollers.

The working principle of the embodiment is as follows: the electric equipment used by the device is controlled by an external controller, the automobile rear axle 4 consists of a speed reducer 52, a differential 53, a group of opposite half shafts 54, universal joints 55 and tires 56, the speed reducer 52 is in transmission connection with the front end shaft of the double-shaft extension asynchronous motor 22, as shown in fig. 8, two sides of the bottom of the automobile rear axle 4 are fixedly arranged on the lifting display platform 3 through a group of opposite support platforms 44;

when lifting out or taking in: after the automobile rear axle 4 is displayed and taught, the automobile rear axle 4 is stored in a rear axle storage box 1, as shown in fig. 1, when the automobile rear axle 4 needs to be lifted out, an electric hydraulic rod 5 firstly starts to work to drive a push plate 6 on a telescopic end to move upwards, the push plate 6 is fixedly connected with a lifting display platform 3 through a support frame 7, the push plate 6 drives the lifting display platform 3 to move slowly upwards, a group of opposite first connecting rods 9 are arranged on two sides of the push plate 6, the front ends of the first connecting rods 9 are slidably arranged on a first sliding guide rail 8 through first rollers 10 to improve the movement stability of the lifting display platform 3, a first connecting block 14 is arranged at the bottom of the first connecting rods 9, a group of opposite pulleys 16 are arranged on two sides of the bottom in the rear axle storage box 1, a group of opposite second sliding guide rails 11 are arranged at the upper end of the inner wall of the rear axle storage box 1, and the rear ends of a group of opposite sealed door panels 12 are movably hinged on the second sliding guide rails 11, the front end of the sealing door plate 12 is slidably mounted on a sliding guide rail II 11 through a roller II 13, the sealing door plate 12 is formed by a door plate I45 and a door plate II 46, the door plate I45 and the door plate II 46 are movably hinged through a connecting rotating shaft 47, as shown in figure 7, a fixed end shaft 15 is mounted at the bottom of the door plate I45, a pulling sleeve rod 17 is movably hinged at the bottom of the fixed end shaft 15, a sliding rod 18 is inserted at the inner bottom of the pulling sleeve rod 17 in a sliding mode, the lower end of the sliding rod 18 extends out of the pulling sleeve rod 17, a limiting block 19 is mounted at the upper end of the sliding rod 18 and used for limiting the position of the sliding rod 18, a connecting block II 20 is mounted at the bottom of the sliding rod 18, one end of a steel wire pulling rope 21 is connected with a connecting block I14, the other end of the steel wire pulling rope 21 is connected with the connecting block II 20 and is sleeved on a pulley 16, the connecting rod I9 moves upwards, the sliding rod 18 is limited by pulling rope 21, a spring I49 is sleeved at the upper end of the sliding rod 18, one end of a spring I49 is connected with the inner wall of the pulling loop bar 17, the other end of the spring I is connected with a limiting block 19, after the spring I49 is stressed and compressed to a certain degree, the sealing door panel 12 is driven to unfold by pulling the loop bar 17, the front end of the sealing door panel 12 is slidably mounted on a sliding guide rail II 11 through a roller II 13, a stop block 48 is mounted in the sliding guide rail II 11, the stop block 48 is used for limiting the position of the roller II 13, because the lifting display platform 3 is low in height, when the automobile rear axle 4 moves to the sealing door panel 12, the sealing door panel 12 is already opened at the moment, as shown in figure 2, then the lifting display platform 3 continues to rise, the position of the sealing door panel 12 is not changed due to the stop block 48, the sliding rod 18 continues to compress the spring I through the limiting block 19 at the upper end, and when the lifting display platform 3 rises, the lower end of the sliding rod 18 completely slides out, the first spring 49 is compressed by force, as shown in fig. 3, the rear axle 4 of the automobile is lifted out, when the rear axle 4 of the automobile needs to be stored, the electric hydraulic rod 5 starts to work to drive the pushing plate 6 on the telescopic end to move downwards, the steel wire rope 21 drives the sliding rod 18, the first spring 49 firstly resets to drive the sliding rod 18 to enter the pulling sleeve rod 17, the lifting display platform 3 enters the rear axle storage box 1, then the sealing door plate 12 is closed and sealed, the lifting motion of the rear axle 4 of the automobile is opposite to that of the lifting motion of the rear axle 4 of the automobile, the sealing door plate 12 is provided with the pulling handle 50, one side of the pulling handle 50 is provided with the door plate lock 51, the door plate lock 51 can lock the sealing door plate 12, the storage mechanism at the bottom of the lifting display platform 3 can automatically expand or store and protect the rear axle display platform 3 of the automobile, dust generated when the rear axle display platform of the automobile is placed for a long time is prevented, and labor force for manual cleaning is reduced, the lifting display platform 3 and the sealing door plate 12 are of a linkage structure, so that the cost of equipment is reduced;

when the display is adjusted: the double-shaft extension asynchronous motor 22 starts to work firstly, a front end shaft of the double-shaft extension asynchronous motor 22 is in transmission connection with a speed reducer 52, the speed reducer 52 drives a tire 56 to rotate through a differential 53, a group of opposite half shafts 54 and a universal joint 55, the tire 56 is placed on a synchronous mounting frame 29, the upper surface of the synchronous mounting frame 29 is provided with a rectangular groove 57, the opposite inner wall of the rectangular groove 57 is provided with a group of opposite through grooves 58, two ends in each through groove 58 are rotatably provided with a group of opposite transmission shafts 59 through fastening bearings, each transmission shaft 59 is sleeved with a transmission belt 60, the transmission belt 60 is in friction contact with the tire 56, two ends of each transmission shaft 59 are uniformly provided with outer teeth 61, two ends of the bottom of each transmission belt 60 are uniformly provided with inner teeth 62 which are mutually meshed with the outer teeth 61, as shown in figure 10, the tire 56 drives the transmission belt 60 to synchronously rotate, the front end shaft of the double-shaft extension asynchronous motor 22 is provided with a driving gear one 23, the driving gear I23 is meshed with a driven gear I25 on the driven shaft 24, the driven shaft 24 is movably arranged on one side of a double-shaft-extension asynchronous motor 22 through a fastening bearing, the size of the driving gear I23 is smaller than that of the driven gear I25, a front end shaft of the double-shaft-extension asynchronous motor 22 is decelerated through the driving gear I23 and the driven gear I25 to drive the driven shaft 24 to slowly rotate, the front end of the driven shaft 24 is provided with a cam 26, the initial position of the cam 26 is shown in figure 4, the rear end of a synchronous mounting frame 29 is connected with a rotating shaft I27 through a connecting rod II 28, the front end of the synchronous mounting frame 29 is provided with a steering rod I30, the front end of the steering rod I30 is movably hinged with a steering rod II 31, the rear end of the lifting display platform 3 is provided with a group of opposite fixed blocks 32, a push rod 33 is movably inserted in the fixed blocks 32, and the rear end of the push rod 33 is movably hinged with the steering rod I30, the front end of the pushing rod 33 is provided with a pushing plate 34 corresponding to the position of the cam 26, the front end of the pushing rod 33 is sleeved with a second spring 63, one end of the second spring 63 is connected with the fixed block 32, the other end of the second spring is connected with the pushing plate 34, when the driven shaft 24 drives the cam 26 to rotate, the pushing plates 34 on two sides are extruded, the second spring 63 is stressed and compressed, the first steering rod 30 is pushed by the pushing rod 33, the first steering rod 30 moves the tire 56 on the synchronous mounting frame 29 to steer left and right according to the parallelogram principle, the upper surface of the lifting display platform 3 is provided with a group of opposite arc-shaped chutes 64, the bottom of the synchronous mounting frame 29 is slidably mounted on the arc-shaped chutes 64 through rollers, the swinging stability of the synchronous mounting frame 29 is improved, the sliding plate 36 is slidably mounted on the chutes 35, as shown in figure 9, the outer surface of the front end of the first rotating shaft 27 is uniformly provided with a first rack 38 meshed first meshing teeth 37, when the synchronous mounting frame 29 rotates rightwards, the sliding plate 36 is driven to slide leftwards, the rack II 41 is installed on the other side of the front end of the sliding plate 36, the rack II 41 is meshed with the meshing gear II 40 at the bottom of the rotating shaft II 39, the size of the rotating shaft II 39 is smaller than that of the rotating shaft I27, the sliding plate 36 drives the L-shaped connecting rod 42 on the rotating shaft II 39 to rotate in a large range, the clamping plate 43 at the front end of the right L-shaped connecting rod 42 clamps the tire 56, the rotating speed of the right tire 56 is reduced, the clamping plate 43 at the front end of the left L-shaped connecting rod 42 swings rightwards, the left tire 56 is not interfered, as shown in figure 5, when the tire 56 turns leftwards, as shown in figure 6, when a student observes the tire turning, the working state of the rear axle system is achieved, and an adjusting and displaying mechanism at the bottom of the automobile rear axle 4 can visually allow the student to know the transmission principle among the components of the automobile rear axle 4 and the working state of the rear axle system when the automobile rear wheels turn, the teaching quality is improved.

The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.

Claims

1. An automobile rear axle display stand comprises a rear axle containing box (1) and universal wheels (2) positioned around the bottom of the rear axle containing box (1), and is characterized in that a lifting display stand (3) is slidably mounted in the rear axle containing box (1), a containing mechanism is arranged at the bottom of the lifting display stand (3), an automobile rear axle (4) is mounted on the lifting display stand (3), and an adjusting display mechanism is arranged at the bottom of the automobile rear axle (4);

the containing mechanism comprises an electric hydraulic rod (5), a push plate (6), a support frame (7), a group of relative sliding guide rails I (8), a group of relative connecting rods I (9), a roller I (10), a group of relative sliding guide rails II (11), a group of relative sealing door plates (12), a group of relative roller II (13), a connecting block I (14), a fixed end shaft (15), a group of relative pulleys (16), a pulling sleeve rod (17), a sliding rod (18), a limiting block (19), a connecting block II (20) and a steel wire pull rope (21), wherein the electric hydraulic rod (5) is vertically arranged at the bottom in a rear axle containing box (1), the telescopic end of the electric hydraulic rod is vertically upward, the push plate (6) is arranged at the telescopic end of the electric hydraulic rod (5), the support frame (7) is arranged on the push plate (6), the upper end of the electric hydraulic rod is connected with the lifting display platform (3), the group of relative sliding guide rails I (8) is vertically arranged on the relative inner side wall of the rear axle containing box (1), the group of relative sliding guide rails I (9) is transversely arranged at two sides of the push plate (6), the group of the roller I (10) is arranged at the inner wall of the group of the sliding guide rails I (9), the group of the sliding guide rails I (8) in the group of the sliding guide rails I (8) and the sliding guide rails (8) is arranged at the front end of the group of the sliding guide rails (1), the rear ends of a group of opposite sealing door plates (12) are movably hinged to a sliding guide rail II (11), a group of opposite rolling wheels II (13) is installed at the front end of each sealing door plate (12) and is installed in the sliding guide rail II (11) in a sliding mode, a connecting block I (14) is installed at the bottom of a connecting rod I (9), a fixed end shaft (15) is installed at the bottom of each sealing door plate (12), a group of opposite pulleys (16) is installed on two sides of the bottom in a rear axle containing box (1), a pulling loop bar (17) is movably hinged to the bottom of a fixed end shaft (15), the upper end of each sliding rod (18) is movably inserted into the pulling loop bar (17), the lower end of each sliding rod extends out of the pulling loop bar (17), a limiting block (19) is installed at the upper end of each sliding rod (18), a connecting block II (20) is installed at the lower end of each sliding rod (18), one end of a steel wire pulling rope (21) is connected with the connecting block I (14), the other end of the connecting block II (20) and is sleeved on the pulley (16);

the adjusting and displaying mechanism comprises a double-shaft-extension asynchronous motor (22), a first driving gear (23), a driven shaft (24), a first driven gear (25), a cam (26), a group of opposite rotating shafts (27), a second connecting rod (28), a synchronous mounting frame (29), a first steering rod (30), a second steering rod (31), a group of opposite fixing blocks (32), a push rod (33), a push plate (34), a group of opposite sliding grooves (35), a sliding plate (36), a first meshing gear (37), a first rack (38), a group of opposite rotating shafts (39), a second meshing gear (40), a second rack (41), an L-shaped connecting rod (42) and a clamping plate (43), the double-shaft-extension asynchronous motor (22) is horizontally arranged on the lifting display platform (3), the first driving gear (23) is arranged on the rear end shaft of the double-shaft-extension asynchronous motor (22), the driven shaft (24) is movably arranged on one side of the double-shaft-extension asynchronous motor (22), the first driven gear (25) is arranged on the driven shaft (24) and is mutually meshed with the first driving gear (23), the cam (26) is arranged on the front end of the group of the rotating shafts (24), and the front end of the lifting display platform (27) is arranged on the group of the vertical lifting display platform (27), the synchronous mounting frame (29) is arranged at the front end of a second connecting rod (28), the first steering rod (30) is arranged at the front end of the synchronous mounting frame (29), the second steering rod (31) is movably hinged at the front end of the first steering rod (30), a group of opposite fixed blocks (32) is arranged at the rear end of the lifting display platform (3), the push rod (33) is movably inserted in the fixed blocks (32), the rear end of the push rod is movably hinged with the first steering rod (30), the push plate (34) is arranged at the front end of the first steering rod (30) and corresponds to the position of the cam (26), a group of opposite sliding chutes (35) are arranged at the front end of the lifting display platform (3), the sliding plate (36) is slidably arranged on the sliding chutes (35), the first meshing teeth (37) are uniformly arranged on the outer surface of the front end of the first rotating shaft (27), the first rack (38) is arranged at one side of the front end of the sliding plate (36) and is meshed with the first meshing teeth (37), a group of opposite rotating shafts (39) is movably arranged at one side of the first rotating shaft (27), the second rotating shafts (40) are uniformly meshed with the second rotating shafts (39), and the two sliding plate (39) and the rack (41) are arranged on the upper ends of the front ends of the sliding plate (36), the clamping plate (43) is arranged at the front end of the L-shaped connecting rod (42);

the automobile rear axle (4) is composed of a speed reducer (52), a differential (53), a group of opposite half shafts (54), a universal joint (55) and tires (56); the double-shaft extension asynchronous motor (22) starts to work firstly, a front end shaft of the double-shaft extension asynchronous motor (22) is in transmission connection with a speed reducer (52), and the speed reducer (52) drives a tire (56) to rotate through a differential (53), a group of opposite half shafts (54) and a universal joint (55).

2. The vehicle rear axle display stand according to claim 1, wherein a set of opposing support stands (44) are mounted on both sides of the bottom of the vehicle rear axle (4).

3. The automobile rear axle display stand according to claim 1, characterized in that the sealing door panel (12) is formed by a first door panel (45) and a second door panel (46), and the first door panel (45) and the second door panel (46) are movably hinged through a connecting rotating shaft (47).

4. The automobile rear axle display stand according to claim 1, characterized in that a stop block (48) is installed in the second sliding guide rail (11), and the stop block (48) is used for limiting the position of the second roller (13).

5. The automobile rear axle display stand according to claim 1, characterized in that a first spring (49) is sleeved on the upper end of the sliding rod (18), one end of the first spring (49) is connected with the inner wall of the pulling sleeve rod (17), and the other end is connected with the limiting block (19).

6. The automobile rear axle display stand according to claim 1, characterized in that the sealing door panel (12) is provided with a pulling handle (50), and a door panel lock (51) is arranged on one side of the pulling handle (50).

7. The automobile rear axle display stand according to claim 1, characterized in that a rectangular groove (57) is formed in the upper surface of the synchronous mounting frame (29), a group of opposite through grooves (58) are formed in the opposite inner walls of the rectangular groove (57), a group of opposite transmission shafts (59) are rotatably mounted at two ends in the through grooves (58), a transmission belt (60) is sleeved on each transmission shaft (59), and the transmission belt (60) is in frictional contact with the tire (56).

8. The automobile rear axle display stand according to claim 7, characterized in that the transmission shaft (59) is provided with outer teeth (61) at both ends, and the transmission belt (60) is provided with inner teeth (62) at both ends at the bottom for meshing with the outer teeth (61).

9. The automobile rear axle display stand as claimed in claim 1, wherein a second spring (63) is sleeved at the front end of the pushing rod (33), one end of the second spring (63) is connected with the fixed block (32), and the other end of the second spring (63) is connected with the pushing plate (34).

10. The automobile rear axle display stand according to claim 1, characterized in that the upper surface of the lifting display stand (3) is provided with a group of opposite arc-shaped sliding grooves (64), and the bottom of the synchronous mounting rack (29) is slidably mounted on the arc-shaped sliding grooves (64) through rollers.