阅读说明：本技术 一种用于运输车上的液压半轴悬挂装置 (Hydraulic half shaft suspension device for transport vehicle ) 是由 董雪梅 于 2020-05-28 设计创作，主要内容包括：本发明涉及车辆减震技术领域,本发明公开了一种用于运输车上的液压半轴悬挂装置,包括连接在车架底部的油缸,所述油缸的端部通过活动销和所述车架转动连接,所述油缸端部安装有支座耳板,支承板在受到油缸的挤压后,支承板会围绕主销转动。调整臂和推杆之间为拨叉、开口销连接,当推杆被推出的时候,推杆能够推动调整臂围绕凸轮轴转动,这样就能够使得车辆在行走过坡度相差较大的路面时,不但能够减速而且还能够进行缓冲,开车的司机在过坑洼的路面时候,司机不需要进行急踩刹车以达到快速的制动,该装置能够实现在进行缓冲的过程中实现同步减速的功能,能够保证行车的安全性能和舒适性能。(The invention relates to the technical field of vehicle shock absorption, and discloses a hydraulic half shaft suspension device for a transport vehicle. Be the shift fork between adjustment arm and the push rod, split pin connects, when the push rod is released, the push rod can promote the adjustment arm and surround the camshaft rotation, just so can make the vehicle cross the slope when the great road surface of difference, not only can slow down but also can cushion, the driver of driving is when crossing pot hole road surface, the driver need not step on the brake in an urgent way in order to reach quick braking, the device can realize realizing the function of realizing synchronous speed reduction at the in-process that cushions, can guarantee the security performance and the comfort performance of driving a vehicle.)

1. A hydraulic half-shaft suspension device for a transport vehicle is characterized by comprising an oil cylinder (1) connected to the bottom of a vehicle frame, wherein the end of the oil cylinder (1) is rotatably connected with the vehicle frame through a movable pin, a support lug plate (2) is mounted at the end of the oil cylinder (1), the support lug plate (2) is rotatably connected with the end of the oil cylinder (1), the bottom of the support lug plate (2) is fixedly connected to the top of a support plate (3), the support plate (3) is of a trapezoidal structure, a trapezoidal hollow structure is arranged in the middle of the support plate (3), a through hole (31) is formed below the support plate (3), a main pin (32) is mounted inside the through hole (31), a vertical support plate is fixed on the side wall of the bottom of the support plate (3), and an air chamber (5) is fixedly connected to the side wall of the support plate through a bolt, a push rod (4) is arranged on one side of the air chamber (5), the air chamber (5) is connected with the push rod (4) through a shifting fork (43) and a cotter pin (46), and one end of the push rod (4) is movably connected with an adjusting arm (6);

the push rod (4) comprises a hollow pipe (41), stabilizing nuts (19) are welded at two ends of the hollow pipe (41), a first screw rod (42) is installed at one end of the hollow pipe (41), and the first screw rod (42) penetrates through the stabilizing nuts (19) and extends into an inner cavity of the hollow pipe (41); second screw rod (51) are installed to the other end of hollow tube (41), just second screw rod (51) run through stabilizing nut (19) and extend to in the inner chamber of hollow tube (41), first screw rod (42), second screw rod (51) all with stabilizing nut screw (19) line connection.

2. The hydraulic half-shaft suspension device for the transport vehicle as claimed in claim 1, wherein the push rod (4) further comprises a shifting fork (43) connected to the end of the first screw (42) and having a cylindrical structure, a notch is formed in the shifting fork (43), a circular pin hole (44) is formed in the shifting fork (43), and the pin hole (44) penetrates through the shifting fork (43).

3. A hydraulic axle suspension for a haulage vehicle according to claim 2, characterised in that the shift fork (43) is connected to the end of the adjustment arm (6) by a connecting pin (45), the connecting pin (45) being mounted inside the pin hole (44), the end of the connecting pin (45) extending out of the pin hole (44) being fitted with an opening (46).

4. The hydraulic half shaft suspension device for the transport vehicle is characterized in that the push rod (4) is located below an axle (18), a hub (14) is connected to the axle (18), a brake drum (13) is installed on the inner side of the hub (14), a cam shaft (17) is installed inside the brake drum (13), the cam shaft (17) is connected with the adjusting arm (6), a dust cover (16) is arranged on the side wall of the brake drum (13), and the cam shaft (17) penetrates through the inside of the dust cover (16) and extends into the brake drum (13).

5. A hydraulic axle shaft suspension for a haulage vehicle according to claim 4 wherein the push rod (4) is located inside the hub (14) and the hub (14) is attached to a tire by a tire bolt (15).

6. The hydraulic half shaft suspension device for the transport vehicle as claimed in claim 1, wherein a pin shaft outer sleeve (10) is sleeved on the main pin (32), a first bearing (9) and a second bearing (11) are fixed inside the pin shaft outer sleeve (10), the main pin (32) is fixed inside the first bearing (9) and the second bearing (11), a locking nut (7) is installed at the end portion, far away from the support plate (3), of the main pin (32), a backstop washer (8) is installed between the locking nut (7) and the first bearing (9), an oil seal (12) is arranged on one side, close to the support plate (3), of the second bearing (11), the oil seal (12) is arranged inside the pin shaft outer sleeve (10), and the pin shaft outer sleeve (10) is welded on a frame girder.

7. A hydraulic axle suspension for a transport vehicle according to claim 1, characterized in that the dimension of the length of the bottom side of the bearing plate (3) is greater than the dimension of the length of the top side thereof.

8. The hydraulic half shaft suspension device for the transport vehicle as claimed in claim 1, wherein the use method of the device comprises the following steps:

the method comprises the following steps: when the vehicle shakes during operation, the vehicle extrudes the oil cylinder (1), the oil cylinder (1) pushes the support lug plate (2) under the action of pressure, the support lug plate (2) is fixed at the top of the support plate (3), so that the oil cylinder 1 can push the support plate 3 to rotate up and down, the support plate (3) can enable the axle (18) to rotate around the pin (32) when rotating, the end part of the bottom of the support plate (3) can obliquely rotate downwards around the main pin (32), and the pin sleeve 10 on the main pin (32) is welded on a frame girder, so that the support plate 3 and the main pin 32 can rotate relatively;

step two: when the supporting plate (3) rotates, the supporting plate (3) can drive the stabilizing plate fixed on the supporting plate to rotate, the air chambers (5) are fixed on the stabilizing plate through bolts, the air chambers (5) are driven to rotate synchronously when the stabilizing plate rotates, the push rod (4) can be driven to rotate synchronously when the air chambers (5) rotate, the push rod (4) rotates to push the adjusting arm (6) fixed at the end of the push rod to rotate, and the adjusting arm (6) rotates to drive the cam shaft (17) connected with the adjusting arm (6) to rotate.

Step three: when the vehicle is braked in the running process, air is fed through an air inlet interface of the air chamber (5), and the push rod (4) is pushed out, so that the cam shaft (17) is driven by the adjusting arm (6) to rotate by a certain angle; the adjusting arm (6) drives the camshaft (17) to rotate by a corresponding angle through the inner hole spline; when the camshaft (17) rotates, the brake assembly is pushed to work under the action of the structure of the camshaft (17), the outer surface of the brake assembly is in contact with the inner diameter of the brake drum (13), and friction force is generated, so that the braking effect is achieved; when braking is finished, air pressure of the air chamber (5) is discharged from the air outlet, the push rod (4) is retracted through the internal energy storage spring, and the adjusting arm (6) rotates reversely to release braking.

Technical Field

The invention relates to the technical field of vehicle damping, in particular to a hydraulic half shaft suspension device for a transport vehicle.

Background

The glass transport vehicle requires stable transportation of the vehicle due to the particularity of transporting goods, and the vehicle can have a buffering function when meeting the requirement of the vehicle on uneven road conditions. Thus, the glass is not easy to damage in the transportation process. Similarly, when the molten aluminum transport vehicle runs in a factory, the height of the vehicle frame needs to be reduced when molten aluminum is received, and when the molten aluminum is received and the vehicle needs to be lifted to the normal height when the molten aluminum runs normally. Because the molten aluminum temperature is higher, the throwing out can cause personnel's injury, transports some cement prefabricated plates, makes the prefabricated plate very easily when the vehicle passes through the road section of pothole, top over a night, and the damage appears in the prefabricated plate.

The publication number is: the patent of CN103342090A discloses an automobile suspension, which comprises an air spring, and a gyroscope and an acceleration sensor vertically mounted on half shaft sleeves of four wheels, wherein the gyroscope and the acceleration sensor are respectively connected with a running computer on an automobile, and the gyroscope and the acceleration sensor are used for detecting the inclination angles of the four half shaft sleeves so as to control inflation and deflation in the air spring through the running computer; the automobile suspension further comprises a thrust rod, a hitching leg and a lubricating device. In contrast to the present application, the following cannot be solved: the glass transport vehicle requires stable transportation of the vehicle due to the particularity of transporting goods, and the vehicle can have a buffering function when meeting the requirement of the vehicle on uneven road conditions. Thus, the glass is not easy to damage in the transportation process. Similarly, when the molten aluminum transport vehicle runs in a factory, the height of the vehicle frame needs to be reduced when molten aluminum is received, and when the molten aluminum is received and the vehicle needs to be lifted to the normal height when the molten aluminum runs normally. The aluminum water has higher temperature, so the aluminum water is thrown out to cause the injury of personnel.

Disclosure of Invention

The invention aims to provide a hydraulic half shaft suspension device for a transport vehicle, which can solve the problems that the existing glass transport vehicle requires stable transport of the vehicle due to the particularity of transporting goods, and the vehicle can have a buffer function when meeting the requirements of uneven road conditions. Thus, the glass is not easy to damage in the transportation process. Similarly, when the molten aluminum transport vehicle runs in a factory, the height of the vehicle frame needs to be reduced when molten aluminum is received, and when the molten aluminum is received and the vehicle needs to be lifted to the normal height when the molten aluminum runs normally. The aluminum water has higher temperature, so the aluminum water is thrown out to cause the injury of personnel. This requires the vehicle to run smoothly and the use of hydraulic axle suspension solves this problem well. The axle of hydraulic suspension is connected with bearing plate, on the bearing plate a shaft pin is fixed, and the shaft pin and crossbeam are connected with shaft pin cover by means of bearing.

The purpose of the invention can be realized by the following technical scheme:

a hydraulic half-shaft suspension device for a transport vehicle comprises an oil cylinder connected to the bottom of a vehicle frame, wherein the end part of the oil cylinder is rotatably connected with the vehicle frame through a movable pin, a support lug plate is mounted at the end part of the oil cylinder and is rotatably connected with the end part of the oil cylinder, the bottom part of the support lug plate is fixedly connected to the top of a support plate, the support plate is of a trapezoidal structure, a trapezoidal hollow structure is arranged in the middle of the support plate, a through hole is formed in the lower part of the support plate, a main pin is mounted in the through hole, a vertical stabilizing plate is fixed to the side wall of the bottom of the support plate, an air chamber is fixedly connected to the side wall of the stabilizing plate through a bolt, a push rod is arranged on one side of the air chamber and is movably connected with the push rod; the hydro-cylinder through setting up passes through the removable pin and the vehicle frame is connected, when the shock attenuation appears in the frame, the both ends of hydro-cylinder all can take place to rotate, thereby can make the hydro-cylinder reach the flexible of maximum stroke, reach the biggest buffering effect, the hydro-cylinder is connected through the removable pin that sets up and bearing plate, when the hydro-cylinder cushions downwards, at this moment, the hydro-cylinder can extrude the bearing plate, the hydro-cylinder can contract simultaneously, the bearing plate is receiving the extrusion back of hydro-cylinder, the bearing plate can rotate around the king pin, the atmospheric pressure of air chamber is discharged from the gas outlet, make the push rod retract through inside energy storage spring, make adjusting arm reverse rotation, in order to. The adjusting arm and the push rod are movably connected through the shifting fork and the cotter pin, when the push rod rotates, the push rod can push the adjusting arm to rotate around the cam shaft, so that the adjusting arm drives the cam shaft to rotate, the cam shaft can drive the brake assembly to work in the rotating process, the outer surface of the brake assembly is in contact with the inner diameter of the brake drum, friction force is generated, and the braking effect is achieved; therefore, the vehicle can decelerate and buffer when walking on a road with a large gradient difference, a driver driving the vehicle does not need to step on a brake suddenly to achieve rapid braking when crossing a pothole road, the device can realize the function of realizing synchronous deceleration in the buffering process, and the driving safety performance and comfort performance can be guaranteed.

Preferably, the push rod comprises a hollow pipe, stabilizing nuts are welded at two ends of the hollow pipe, a first screw rod is installed at one end of the hollow pipe, and the first screw rod penetrates through the stabilizing nuts and extends into an inner cavity of the hollow pipe; the other end of the hollow tube is provided with a second screw rod, the second screw rod penetrates through the stabilizing nut and extends into the inner cavity of the hollow tube, and the first screw rod and the second screw rod are in threaded connection with the stabilizing nut. Can cooperate the air chamber through the push rod that sets up to work, the first screw rod and the second screw rod homoenergetic that set up moreover can carry out the thread connection with stabilizing nut, conveniently dismantle, can also adjust the distance between air chamber and the adjustment arm.

Preferably, the push rod further comprises a shifting fork which is connected to the end of the first screw rod and is of a cylindrical structure, a notch is formed in the shifting fork, a circular pin hole is formed in the shifting fork, and the pin hole penetrates through the interior of the shifting fork. The opening can be convenient for be connected with the adjusting arm through the setting for the tip of push rod is convenient for dismantle and the installation with the camshaft.

Preferably, the shifting fork is connected with the end part of the adjusting arm through a connecting pin, the connecting pin is installed inside the pin hole, and a cotter pin is installed on the end part of the connecting pin extending out of the pin hole. Can be quick dismantle and connect the adjusting arm through the connecting pin that sets up to the connection of adjusting arm can be stabilized through the cooperation of opening and connecting pin.

Preferably, the push rod is located the below of axletree, be connected with wheel hub on the axletree, wheel hub's internally mounted has the brake drum, the internally mounted of brake drum has the camshaft even to install, the camshaft with the adjusting arm is connected, wheel hub's lateral wall is provided with the dust cover, the camshaft runs through inside the extending to wheel hub in the dust cover. The push rod sets up the below that can provide sufficient space for the operation of push rod at the axletree, through the connection of the adjusting arm and the camshaft that set up, when the adjusting arm is driven the pivoted, can reach the effect of braking.

Preferably, the push rod is located inside the hub, and the hub is connected with a tire through a tire bolt. The push rod can be protected, and the push rod can be more attractive after being installed.

Preferably, a pin shaft outer sleeve is sleeved on the main pin, a first bearing and a second bearing are fixed inside the pin shaft outer sleeve, the main pin is fixed inside the first bearing and the second bearing, a locking nut is installed at the end part, far away from the bearing plate, of the main pin, a retaining washer is installed between the locking nut and the first bearing, an oil seal is arranged on one side, close to the bearing plate, of the second bearing, the oil seal is arranged inside the pin shaft outer sleeve, and the pin shaft outer sleeve is welded on a frame girder. The pin shaft outer sleeve can play a role in stabilizing the main pin to rotate, can also play a role in protecting the main pin, can support the rotation of the main pin through the arranged first bearing and the second bearing, and can play a role in lubricating the rotation of the main pin through the arranged oil seal.

Preferably, the support plate has a dimension of a bottom side greater than a dimension of a top side thereof. The length of the bottom edge of the supporting plate is larger than that of the fixed edge, so that the stability of the rotating process is higher. The middle part of the bearing plate is arranged to be a hollow structure, so that the overall quality of the bearing plate is reduced, and the aim of saving the production cost is fulfilled.

A hydraulic half shaft suspension device for a transport vehicle is used, and the using method of the device specifically comprises the following steps:

the method comprises the following steps: when the vehicle shakes during operation, the vehicle extrudes the oil cylinder, the oil cylinder pushes the support lug plate under the action of pressure, the support lug plate is fixed at the top of the support plate, so that the oil cylinder can push the support plate to rotate downwards, the support plate can rotate around an axle when moving, when the support plate rotates around the axle, the end part of the bottom of the support plate can rotate downwards around the main pin in an inclined mode, and the pin shaft on the main pin is sleeved and welded on a frame girder, so that the support plate and the main pin can rotate relatively;

step two: when the bearing plate rotates, the bearing plate can drive the stabilizing plate fixed on the bearing plate to rotate, the air chambers are fixed on the stabilizing plate through bolts, the air chambers are driven to rotate synchronously when the stabilizing plate rotates, the push rod can be driven to rotate synchronously when the air chambers rotate, the push rod can be driven to rotate to push the adjusting arm fixed at the end part of the push rod to rotate, and the adjusting arm rotates to drive the cam shaft connected with the adjusting arm to rotate.

Step three: when the vehicle is braked in the running process, air is fed through an air inlet interface of the air chamber, and the push rod is pushed out, so that the adjusting arm drives the cam shaft to rotate by a certain angle; the adjusting arm drives the cam shaft to rotate by a corresponding angle through the inner hole spline; when the camshaft rotates, the brake assembly is pushed to work under the action of the camshaft structure, the outer surface of the brake assembly is in contact with the inner diameter of the brake drum, and friction force is generated, so that the braking effect is achieved; when braking is finished, the air pressure of the air chamber is discharged from the air outlet, the push rod is retracted through the internal energy storage spring, and the adjusting arm rotates reversely to release braking.

The invention has the beneficial effects that:

1. the hydro-cylinder through setting up passes through the removable pin and the vehicle frame is connected, when the shock attenuation appears in the frame, the both ends of hydro-cylinder all can take place to rotate, thereby can make the hydro-cylinder reach the flexible of maximum stroke, reach the biggest buffering effect, the hydro-cylinder is connected through the removable pin that sets up and bearing plate, when the hydro-cylinder cushions downwards, at this moment, the hydro-cylinder can extrude the bearing plate, the hydro-cylinder can contract simultaneously, the bearing plate is receiving the extrusion back of hydro-cylinder, the bearing plate can rotate around the king pin, the atmospheric pressure of air chamber is discharged from the gas outlet, make the push rod retract through inside energy storage spring, make adjusting arm reverse rotation, in order to. The adjusting arm and the push rod are movably connected, when the push rod rotates, the push rod can push the adjusting arm to rotate around the cam shaft, so that the adjusting arm drives the cam shaft to rotate, the cam shaft can drive the brake assembly to work in the rotating process, the outer surface of the brake assembly is in contact with the inner diameter of the brake drum, friction force is generated, and the braking effect is achieved; therefore, the vehicle can decelerate and buffer when walking on a road with a large gradient difference, a driver driving the vehicle does not need to step on a brake suddenly to achieve rapid braking when crossing a pothole road, the device can realize the function of realizing synchronous deceleration in the buffering process, and the driving safety performance and comfort performance can be guaranteed.

2. Can cooperate the air chamber through the push rod that sets up to work, the first screw rod and the second screw rod homoenergetic that set up moreover can carry out the thread connection with stabilizing nut, conveniently dismantle, can also adjust the distance between air chamber and the adjustment arm. The opening can be convenient for be connected with the adjusting arm through the setting for the tip of push rod is convenient for dismantle and the installation with the camshaft. Can be quick dismantle and connect the adjusting arm through the connecting pin that sets up to the connection of adjusting arm can be stabilized through the cooperation of opening and connecting pin. The push rod sets up the below that can provide sufficient space for the operation of push rod at the axletree, through the connection of the adjusting arm and the camshaft that set up, when the adjusting arm is driven the pivoted, can reach the effect of braking. The push rod can be protected, and the push rod can be more attractive after being installed. The pin shaft outer sleeve can play a role in stabilizing the main pin to rotate, can also play a role in protecting the main pin, can support the rotation of the main pin through the arranged first bearing and the second bearing, and can play a role in lubricating the rotation of the main pin through the arranged oil seal. The length of the bottom edge of the supporting plate is larger than that of the fixed edge, so that the stability of the rotating process is higher. The middle part of the bearing plate is arranged to be a hollow structure, so that the overall quality of the bearing plate is reduced, and the aim of saving the production cost is fulfilled.

3. When the vehicle shakes during operation, the vehicle extrudes the oil cylinder, the oil cylinder pushes the support lug plate under the action of pressure, the support lug plate is fixed at the top of the support plate, so that the oil cylinder can push the support plate to rotate downwards, the support plate can rotate around an axle when moving, when the support plate rotates around the axle, the end part of the bottom of the support plate can rotate downwards around the main pin in an inclined mode, and the pin shaft on the main pin is sleeved and welded on a frame girder, so that the support plate and the main pin can rotate relatively; when the bearing plate rotates, the bearing plate can drive the stabilizing plate fixed on the bearing plate to rotate, the air chambers are fixed on the stabilizing plate through bolts, the air chambers are driven to rotate synchronously when the stabilizing plate rotates, the push rod can be driven to rotate synchronously when the air chambers rotate, the push rod can be driven to rotate to push the adjusting arm fixed at the end part of the push rod to rotate, and the adjusting arm rotates to drive the cam shaft connected with the adjusting arm to rotate. When the vehicle is braked in the running process, air is fed through an air inlet interface of the air chamber, and the push rod is pushed out, so that the adjusting arm drives the cam shaft to rotate by a certain angle; the adjusting arm drives the cam shaft to rotate by a corresponding angle through the inner hole spline; when the camshaft rotates, the brake assembly is pushed to work under the action of the camshaft structure, the outer surface of the brake assembly is in contact with the inner diameter of the brake drum, and friction force is generated, so that the braking effect is achieved; when braking is finished, the air pressure of the air chamber is discharged from the air outlet, the push rod is retracted through the internal energy storage spring, and the adjusting arm rotates reversely to release braking.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

FIG. 1 is an elevational view of the overall construction of the present invention;

FIG. 2 is a side view of the overall structure of the present invention;

FIG. 3 is a top view of the overall structure of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 2;

FIG. 5 is a schematic view of the connection structure of the push rod of the present invention;

FIG. 6 is a schematic view of the open mount configuration of the present invention;

in the figure: 1. an oil cylinder; 2. a support ear plate; 3. a support plate; 31. a through hole; 32. a kingpin; 4. a push rod; 41. a hollow tube; 42. a first screw; 43. a shifting fork; 44. a pin hole; 45. a connecting pin; 46. a cotter pin; 5. an air chamber; 51. a second screw; 6. an adjusting arm; 7. locking the nut; 8. a backstop washer; 9. a first bearing; 10. the pin shaft is sleeved; 11. a second bearing; 12. oil sealing; 13. a brake drum; 14. a hub; 15. a tire bolt; 16. a dust cover; 17. a camshaft; 18. an axle; 19. and stabilizing the nut.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, a hydraulic half-shaft suspension device for a transport vehicle comprises an oil cylinder 1 connected to the bottom of a vehicle frame, the end of the oil cylinder 1 is rotatably connected to the vehicle frame through a movable pin, a support lug plate 2 is mounted at the end of the oil cylinder 1, the support lug plate 2 is rotatably connected to the end of the oil cylinder 1, the bottom of the support lug plate 2 is fixedly connected to the top of a support plate 3, the support plate 3 is of a trapezoidal structure, a trapezoidal hollow structure is arranged in the middle of the support plate 3, a through hole 31 is formed below the support plate 3, a main pin 32 is mounted in the through hole 31, a vertical stabilizing plate is fixed to the side wall of the bottom of the support plate 3, an air chamber 5 is fixedly connected to the side wall of the stabilizing plate through a bolt, a push rod 4 is arranged on one side of the air chamber 5, and the air chamber 5 is, one end of the push rod 4 is movably connected with an adjusting arm 6; the oil cylinder 1 is connected with the frame through the movable pin, when the shock absorption occurs to the frame, the two ends of the oil cylinder 1 can rotate, so that the oil cylinder 1 can stretch out and draw back to the maximum stroke, the maximum buffering effect is achieved, the oil cylinder 1 is connected with the supporting plate 3 through the movable pin, when the oil cylinder 1 buffers downwards, at the moment, the oil cylinder 1 can extrude the supporting plate 3, meanwhile, the oil cylinder 1 can shrink, after the supporting plate 3 is extruded by the oil cylinder 1, the supporting plate 3 can rotate around the main pin 32, the air pressure of the air chamber 5 is discharged from the air outlet, the push rod 4 retracts through the internal energy storage spring, the adjusting arm 6 rotates reversely, and the brake is released. The adjusting arm 6 and the push rod 4 are movably connected through a shifting fork 43 and a cotter pin 46, when the push rod 4 rotates, the push rod 4 can push the adjusting arm 6 to rotate around the cam shaft 17, so that the adjusting arm 6 drives the cam shaft 17 to rotate, the cam shaft 17 can drive the brake assembly to work in the rotating process, the outer surface of the brake assembly is in contact with the inner diameter of the brake drum 13, friction force is generated, and the braking effect is achieved; therefore, the vehicle can decelerate and buffer when walking on a road with a large gradient difference, a driver driving the vehicle does not need to step on a brake suddenly to achieve rapid braking when crossing a pothole road, the device can realize the function of realizing synchronous deceleration in the buffering process, and the driving safety performance and comfort performance can be guaranteed.

Specifically, the push rod 4 comprises a hollow tube 41, stabilizing nuts 19 are welded at two ends of the hollow tube 41, a first screw 42 is installed at one end of the hollow tube 41, and the first screw 42 penetrates through the stabilizing nuts 19 and extends into an inner cavity of the hollow tube 41; a second screw 51 is installed at the other end of the hollow pipe 41, the second screw 51 penetrates through the stabilizing nut 19 and extends into the inner cavity of the hollow pipe 41, and the first screw 42 and the second screw 51 are in threaded connection with the stabilizing nut 19. Can cooperate the air chamber 5 through the push rod 4 that sets up to work, first screw rod 42 and the second screw rod 51 homoenergetic that moreover passes through the setting can carry out the threaded connection with stabilizing nut 19, conveniently dismantle, can also adjust the distance between air chamber 5 and the regulating arm 6.

Specifically, the push rod 4 further comprises a shifting fork 43 connected to the end of the first screw rod 42 and having a cylindrical structure, a notch is formed in the shifting fork 43, a round pin hole 44 is formed in the shifting fork 43, and the pin hole 44 penetrates through the shifting fork 43. Can be convenient for be connected with adjusting arm 6 through the breach that sets up for the tip of push rod 4 is convenient for dismantle and install with camshaft 17.

Specifically, the shifting fork 43 is connected with the end of the adjusting arm 6 through a connecting pin 45, the connecting pin 45 is installed inside the pin hole 44, and an opening 46 is installed on the end of the connecting pin 45 extending out of the pin hole 44. The adjustment arm 6 can be quickly detached and attached by the attachment pin 45 provided, and the attachment of the adjustment arm 6 can be stabilized by the engagement of the opening 46 and the attachment pin 45.

Specifically, the push rod 4 is located below an axle 18, a hub 14 is connected to the axle 18, a brake drum 13 is installed inside the hub 14, a cam shaft 17 is installed inside the brake drum 13, the cam shaft 17 is connected with the adjusting arm 6, a dust cover 16 is arranged on the side wall of the hub 14, and the cam shaft 17 penetrates through the inside of the dust cover 16 and extends into the hub 14. The push rod 4 is arranged below the axle 18, so that enough space can be provided for the operation of the push rod 4, and through the connection of the adjusting arm 6 and the cam shaft 17, when the adjusting arm 6 is driven to rotate, the braking effect can be achieved.

Specifically, the push rod 4 is located inside the hub 14, and the hub 14 is connected to a tire through a tire bolt 15. Can play protection push rod 4, can also make push rod 4 installation back comparatively pleasing to the eye.

Specifically, a pin shaft outer sleeve 10 is sleeved on the main pin 32, a first bearing 9 and a second bearing 11 are fixed inside the pin shaft outer sleeve 10, the main pin 32 is fixed inside the first bearing 9 and the second bearing 11, a locking nut 7 is installed at the end, far away from the support plate 3, of the main pin 32, a retaining washer 8 is installed between the locking nut 7 and the first bearing 9, an oil seal 12 is arranged on one side, close to the support plate 3, of the second bearing 11, the oil seal 12 is arranged inside the pin shaft outer sleeve 10, and the pin shaft outer sleeve 10 is welded on a frame girder. The pin shaft outer sleeve 10 can stabilize the main pin 32 to rotate and can protect the main pin 32, the first bearing 9 and the second bearing 11 can support the main pin 32 to rotate, and the oil seal 12 can lubricate the main pin 32 to rotate.

In particular, the support plate 3 has a dimension of the bottom side greater than a dimension of the top side. The length of the bottom side of the supporting plate 3 is larger than the length of the fixed side, so that the stability in the rotating process is higher. The middle part of the bearing plate 3 is provided with a hollow structure to reduce the whole quality of the bearing plate 3, thereby achieving the purpose of saving the production cost.

When the automobile support plate is used, when the automobile shakes during running, the automobile can extrude the oil cylinder 1, the oil cylinder 1 can push the support lug plate 2 under the action of pressure, the support lug plate 2 is fixed at the top of the support plate 3, so that the oil cylinder 1 can push the support plate 3 to rotate downwards, the support plate 3 can rotate around the axle 18 when moving, when the support plate 3 rotates around the axle 18, the end part of the bottom of the support plate 3 can obliquely rotate downwards around the main pin 32, the pin sleeve 10 on the main pin 32 is welded on a frame girder, and the support plate 3 and the main pin 32 can rotate relatively; when the supporting plate 3 rotates, the supporting plate 3 can drive the stabilizing plate fixed on the supporting plate to rotate, the air chamber 5 is fixed on the stabilizing plate through the bolt, the air chamber 5 is driven to rotate synchronously when the stabilizing plate rotates, the push rod 4 can be driven to rotate synchronously when the air chamber 5 rotates, the push rod 4 can drive the adjusting arm 6 fixed at the end part to rotate by rotating, and the adjusting arm 6 rotates to drive the cam shaft 17 connected with the adjusting arm 6 to rotate. When the vehicle is braked in the running process, air is fed through an air inlet interface of the air chamber 5, and the push rod 4 is pushed out, so that the adjusting arm 6 drives the cam shaft 17 to rotate by a certain angle; the adjusting arm 6 drives the cam shaft 17 to rotate by a corresponding angle through the inner hole spline; when the camshaft 17 rotates, the brake assembly is pushed to work under the action of the structure of the camshaft 17, the outer surface of the brake assembly is in contact with the inner diameter of the brake drum 13, and friction force is generated, so that the braking effect is achieved; when braking is finished, air pressure of the air chamber 5 is discharged from the air outlet, the push rod 4 is retracted through the internal energy storage spring, and the adjusting arm 6 rotates reversely to release braking. The axle 18 is welded with the support plate 3, the pin shaft jacket 10 is welded with the girder, and the kingpin 32 is connected with the pin shaft jacket 10 through the first bearing 9. When the road is in rough road conditions, the axle 18 can rotate around the main pin 32 on one hand, and on the other hand, the shock absorption can be realized through the oil cylinder 1, the oil cylinder 1 can play a role in extending and contracting in the vehicle, and meanwhile, the shock absorption function can also be realized, and the oil cylinder 1 is matched with the main pin 32, so that the shock absorption effect of the suspension device is better.

In addition, the carriage can be lifted by filling oil into the oil cylinder 1, and the carriage is lowered by discharging oil from the oil cylinder 1.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.