Trailer frame with damping function and damping method

Abstract

The invention belongs to the technical field of transportation equipment, and particularly relates to a trailer frame with a damping function and a damping method. The disconnected axle assembly comprises an axle supporting beam, the axle supporting beam is connected with the vehicle body frame through a rotating bearing bush assembly, a tire supporting component is welded to the axle supporting beam, an air suspension and a copper wire shock absorber are arranged between the axle supporting beam and the tire supporting component, and a spin lock is arranged at the end of the axle supporting beam. The axle supporting beam and the tire supporting component are used for bearing impact load in the traveling process of a trailer frame and transmitting impact force to a girder of the vehicle body frame, and the spin lock is used for locking the axle supporting beam, the girder of the vehicle body frame and the rolling platform before a vehicle travels along with a transport vehicle. The vibration of the disconnected axle assembly in the running process is reduced, the running stability is improved, and the air suspension and the copper wire shock absorber are used for absorbing the impact load of the trailer frame in the running process and achieving the shock absorption effect.

Description

Technical Field

[0001] The invention belongs to the technical field of transportation equipment, and in particular relates to a trailer frame with a shock absorbing function and a shock absorbing method. Background Art

[0002] The existing trailer frame is prone to shaking when encountering bumpy roads while loaded with goods. In addition, the gravity of the trailer frame after loading is large, and a large impact load is generated during the driving process, which is easy to damage the trailer frame and the goods.

[0003] For example, the patent application number CN201610396216.3 is a trailer frame, which includes at least two longitudinally arranged single-frame main truss bodies and two longitudinally arranged single-frame side truss bodies, a front end beam is arranged at the front end of the frame, and the two single-frame side truss bodies are respectively vertically installed at the two ends of the front end beam with their ends, and the two single-frame main truss bodies are vertically installed on the front end beam with their ends, and are located between the two single-frame side truss bodies and parallel to the single-frame side truss bodies; at the front part of the frame, between the two single-frame main truss bodies, there is a front plate beam structure composed of a number of longitudinal plate beams parallel to the two main truss bodies and connecting plates connected between the longitudinal plate beams or between the longitudinal plate beams and the single main truss bodies, and a traction plate and a traction pin are arranged at the lower part of the front plate beam structure, but the disadvantage of this technical solution is that the shock absorption effect of the trailer frame is poor, and a large impact load is generated during the driving process, which is easy to damage the trailer frame and cargo. Summary of the invention

[0004] The purpose of the present invention is to provide a trailer frame with a shock absorbing function and a shock absorbing method to solve the problems in the prior art. The specific technical solutions are as follows:

[0005] A trailer frame with a shock-absorbing function comprises a body frame and a disconnecting axle assembly;

[0006] The disconnected axle assembly includes an axle support beam, which is connected to the vehicle body frame through a rotating bearing assembly, a tire support component is welded to the axle support beam, an air suspension and a copper wire shock absorber are arranged between the axle support beam and the tire support component, and a rotary lock is arranged at the end of the axle support beam.

[0007] Furthermore, the tire support component includes a connecting support frame, a tire assembly and a suspension assembly. The connecting support frame is welded in the middle of the axle support beam, the bottom of the connecting support frame is fastened to the suspension assembly by bolts, the tire assembly is connected to the suspension assembly through a rotating shaft, a pneumatic brake device is arranged on the rotating shaft, two ends of the air suspension are respectively welded between the axle support beam and the suspension assembly, and two ends of the copper wire shock absorber are respectively welded between the axle support beam and the suspension assembly.

[0008] Furthermore, a wheel cover is provided above the tire assembly, and the wheel cover is fixed to the middle section of the axle support beam through a wheel cover bracket. The rotary lock includes rotary lock 1 and rotary lock 2. Rotary lock 1 is fastened to the rolling platform through double nuts, and rotary lock 2 is fastened to the vehicle body frame through double nuts.

[0009] Furthermore, the rotating bearing assembly includes an axle support, one end of the axle support is fixedly connected to the vehicle body frame, and the other end of the axle support is rotatably connected to the end of the axle support beam through a rotating bearing. An anti-wear pad is provided at the connection between the axle support and the axle support beam, and the rotating bearing is threadedly connected to the bearing end cover.

[0010] Furthermore, a relatively closed chamber is formed between the axle support beam and the rotating bearing, and a grease nipple is provided at the end of the axle support beam, through which grease can be injected into the chamber.

[0011] Furthermore, it also includes an air system, a gantry frame and hydraulic legs. The air system is installed at the front end of the vehicle frame. The air pipe in the air system is connected to the bottom of the vehicle frame through a snap. The gantry frame is welded to the vehicle frame. The gantry frame is slidably connected to the rolling platform. The vehicle frame as a whole is a U-shaped structure. The hydraulic legs are installed at the four corner fulcrums of the vehicle frame through bolts.

[0012] Furthermore, the gantry frame includes a rolling platform guide rail guide frame and a lifting system bearing guide frame, both of which are welded to the vehicle body frame, the rolling platform guide rail guide frame guides the rolling platform, and the lifting system bearing guide frame guides the lifting system.

[0013] Furthermore, the rolling platform includes a rolling platform guide rail, a rolling platform frame, a hydraulic motor, a sprocket chain, a rolling platform deck, rollers, clamps and lifting rings. The rolling platform guide rail is guided by the rolling platform guide rail guide frame. The lower end of the rolling platform guide rail is fixedly connected to the rolling platform frame by bolts. The hydraulic motor is symmetrically installed on the bottom surface of the rolling platform frame at an oblique angle. The sprocket chain is arranged on the rolling platform frame. The sprocket chain is connected to the output shaft of the hydraulic motor. The clamps and lifting rings are welded to the rolling platform frame. The rollers are arranged at a certain interval and placed in the clamps and fixed with the rolling platform deck.

[0014] Furthermore, the lifting system includes a bearing assembly, a lifting sprocket, a lifting bracket, a lifting cylinder assembly and an oil pipe assembly. The bearing assembly is guided by a lifting system bearing guide frame, the bearing assembly is installed at both ends of the lifting bracket by bolt connection, the lifting sprocket is symmetrically fixedly connected to the lifting bracket, one end of the lifting sprocket is connected to the vehicle body frame by a nut, and the other end is connected to the sprocket chain by a nut, the upper end of the lifting cylinder assembly is connected to the lifting bracket by a pin shaft, the middle part of the lifting cylinder assembly is connected to the vehicle body frame, and the oil pipe assembly is fixedly connected to the lifting bracket by bolts.

[0015] A shock absorbing method, applied to any of the above-mentioned trailer frames with shock absorbing function, comprises the following steps:

[0016] S1. When the trailer frame is moving forward and the tire assembly passes over a bumpy road, the impact load of the tire assembly during the movement is borne by the axle support beam and the suspension assembly;

[0017] S2. The impact force is transmitted to the vehicle frame beam, and the rotary lock locks the axle support beam, the vehicle frame beam, and the rolling platform to reduce the shaking of the disconnected axle assembly during driving;

[0018] S3. The function of air suspension and copper wire shock absorber is to absorb the impact load of tire assembly during driving.

[0019] The advantages of the present invention are:

[0020] The function of the axle support beam and tire support components is to bear the impact load of the trailer frame during driving and transfer the impact force to the beam of the body frame. The function of the rotary lock is to lock the axle support beam with the body frame beam and rolling platform before the vehicle travels with the transport vehicle, thereby reducing the shaking of the disconnected axle assembly during driving and increasing driving stability. The function of the air suspension and copper wire shock absorber is to absorb the impact load of the trailer frame during driving and play a shock-absorbing role. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 The structure of the disconnectable axle assembly of the present invention is shown in FIG. Figure 1 ;

[0023] Figure 3 The structure of the disconnectable axle assembly of the present invention is shown in FIG. Figure 2 ;

[0024] Figure 4 It is a schematic diagram of the structure of the rotating bearing bush assembly of the present invention;

[0025] Figure 5 The rolling platform structure of the present invention is schematically shown in FIG. Figure 1 ;

[0026] Figure 6 The rolling platform structure of the present invention is schematically shown in FIG. Figure 2 ;

[0027] Figure 7 It is a schematic diagram of the lifting system structure of the present invention;

[0028] Description of the markings in the figure:

[0029] Air system 1; vehicle frame 2; disconnected axle assembly 3; rotating bearing assembly 301; axle support 3011; rotating bearing 3012; anti-wear pad 3013; bearing end cover 3014; grease nipple 3015; connecting support frame 302; axle support beam 303; wheel cover 304; rotary lock 305; tire assembly 306; air suspension 307; copper wire shock absorber 308; suspension assembly 309; gantry frame 4; rolling platform Guide rail guide frame 401; lifting system bearing guide frame 402; hydraulic support leg 5; rolling platform 6; rolling platform guide rail 601; rolling platform frame 602; hydraulic motor 603; sprocket chain 604; rolling platform deck 605; roller 606; clamp 607; lifting ring 608; lifting system 7; bearing assembly 701; lifting sprocket 702; lifting bracket 703; lifting cylinder assembly 704 and oil pipe assembly 705. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] Embodiment 1

[0033] like Figure 1-7 As shown, a trailer frame with a shock-absorbing function includes a vehicle body frame 2 and a disconnecting axle assembly 3;

[0034] The disconnected axle assembly 3 includes an axle support beam 303, which is connected to the vehicle body frame 2 through a rotating bearing assembly 301, a tire support component is welded on the axle support beam 303, and an air suspension 307 and a copper wire shock absorber 308 are arranged between the axle support beam 303 and the tire support component;

[0035] A twist lock 305 is provided at the end of the axle support beam 303;

[0036] The working principle of the above technical solution: the function of the axle support beam 303 and the tire support component is to bear the impact load of the trailer frame during driving and transfer the impact force to the beam of the body frame 2. The function of the rotary lock 305 is to lock the axle support beam 303 with the beam of the body frame 2 and the rolling platform 6 before the vehicle travels with the transport vehicle, thereby reducing the shaking of the disconnected axle assembly 3 during driving and increasing driving stability. The function of the air suspension 307 and the copper wire shock absorber 308 is to absorb the impact load of the trailer frame during driving and play a shock-absorbing role.

[0037] Embodiment 2

[0038] like Figure 1-7 As shown, the tire support component includes a connecting support frame 302, a tire assembly 306 and a suspension assembly 309, the connecting support frame 302 is welded in the middle of the axle support beam 303, the bottom of the connecting support frame 302 is fastened to the suspension assembly 309 by bolts, the tire assembly 306 is connected to the suspension assembly 309 through a rotating shaft, a pneumatic brake device is arranged on the rotating shaft, two ends of the air suspension 307 are respectively welded between the axle support beam 303 and the suspension assembly 309, and two ends of the copper wire shock absorber 308 are respectively welded between the axle support beam 303 and the suspension assembly 309;

[0039] A wheel cover 304 is provided above the tire assembly 306, and the wheel cover 304 is fixed to the middle section of the axle support beam 303 through a wheel cover bracket. The twist lock 305 includes twist lock 1 and twist lock 2. Twist lock 1 is fastened to the rolling platform 6 through double nuts, and twist lock 2 is fastened to the vehicle body frame 2 through double nuts.

[0040] The working principle of the above technical solution is as follows: the function of the axle support beam 303 and the suspension assembly 309 is to bear the impact load of the tire assembly 306 during driving and transfer the impact force to the body frame 2 beam; the function of the rotary lock 305 is to lock the axle support beam 303 with the body frame 2 beam and the rolling platform 6 before the vehicle travels with the transport vehicle, thereby reducing the shaking of the disconnected axle assembly 3 during driving and increasing driving stability; the function of the air suspension 307 and the copper wire shock absorber 308 is to absorb the impact load of the trailer frame during driving and play a shock-absorbing role.

[0041] Embodiment 3

[0042] like Figure 1-7 As shown, the rotating bearing assembly 301 includes an axle support 3011, one end of the axle support 3011 is fixedly connected to the vehicle body frame 2, and the other end of the axle support 3011 is rotatably connected to the end of the axle support beam 303 through a rotating bearing 3012, an anti-wear pad 3013 is provided at the connection between the axle support 3011 and the axle support beam 303, and the rotating bearing 3012 is threadedly connected to the bearing end cover 3014;

[0043] A relatively closed chamber is formed between the axle support beam 303 and the rotating bearing 3012, and a grease nipple 3015 is provided at the end of the axle support beam 303, through which grease can be injected into the chamber;

[0044] The working principle of the above technical solution is as follows: after the axle support 3011 is connected and fixed to the trailer frame 2, the anti-wear pad 3013 is placed on the end bearing of the axle support beam 303, the axle support beam 303 is moved into the axle support 3011, so that the bearing hole of the axle support beam 303 is concentric with the hole of the axle support 3011, and then the rotating bearing 3012 is inserted into the hole. When the rotating bearing 3012 is installed in place, the bearing end cover 3014 is fixed to the rotating bearing 3012 by threaded connection, and a bearing cap 3014 is formed between the axle support beam 303 and the rotating bearing 3012. The relatively closed chamber can be used to inject butter into the chamber through the butter nozzle 3015 to increase the flexibility of rotation; the axle support 3011 is a fixed support point, and the rotating bearing 3012 rotates the bearing of the axle support beam 303. The anti-wear pad 3013 can adjust the installation gap between the axle support 3011 and the axle support beam 303, and can cooperate with butter to increase the smoothness of the axle support beam 303 during rotation, thereby improving the anti-wear performance. The function of the bearing end cover 3014 is to prevent the rotating bearing 3012 from jumping during driving and to seal the bearing chamber;

[0045] During loading and unloading operations, the axle support beam 303 and the axle support 3011 rotate, driving the tire assemblies 306 on both sides of the trailer frame 2 to extend outward, playing an auxiliary supporting role and making the trailer frame 2 more stable.

[0046] Embodiment 4

[0047] like Figure 1-7 As shown, it also includes an air circuit system 1, a gantry frame 4 and a hydraulic support leg 5. The air circuit system 1 is installed at the front end of the vehicle frame 2. The air circuit pipe in the air circuit system 1 is connected to the bottom of the vehicle frame 2 through a buckle. The gantry frame 4 is welded to the vehicle frame 2. The gantry frame 4 is slidably connected to the rolling platform 6. The vehicle frame 2 is a U-shaped structure as a whole. The hydraulic support leg 5 is installed at the four corners of the vehicle frame 2 by bolts.

[0048] The gantry frame 4 includes a rolling platform guide rail guide frame 401 and a lifting system bearing guide frame 402, both of which are welded to the vehicle body frame 2, the rolling platform guide rail guide frame 401 guides the rolling platform 6, and the lifting system bearing guide frame 402 guides the lifting system 7;

[0049] The working principle of the above technical solution is as follows: a transport vehicle is connected to the front end of the trailer frame, and the air source of the air system 1 comes from the transport vehicle. The air suspension 307 is inflated before driving. When the air system 1 is disconnected from the front transport vehicle, the tire assembly 306 is locked, and the trailer frame can no longer move, preventing the trailer frame from moving at will during loading and unloading. The gantry frame 4 is welded to the main beam of the body frame 2 and reinforced by an inclined beam. Its main function is to guide the rolling platform 6 and the lifting system 7. The hydraulic support legs 5 have two main functions. One is to lift the trailer frame 2 as a whole upward before loading and unloading operations, so that the tire assembly 306 leaves the ground, which facilitates the unlocking and expenditure of the disconnectable axle assembly 3 and the trailer frame 2 and the rolling platform 6, so that the rolling platform 6 falls to the ground. The second is that during loading and unloading operations, the four hydraulic support legs 5 are supported on the ground to maintain the overall balance of the body frame 2.

[0050] Embodiment 5

[0051] like Figure 1-7 As shown, the rolling platform 6 includes a rolling platform guide rail 601, a rolling platform frame 602, a hydraulic motor 603, a sprocket chain 604, a rolling platform deck 605, a roller 606, a clamp 607 and a lifting ring 608. The rolling platform guide rail 601 is guided by the rolling platform guide rail guide frame 401. The lower end of the rolling platform guide rail 601 is fixedly connected to the rolling platform frame 602 by bolts. The hydraulic motor 603 is symmetrically installed at an oblique angle on the bottom surface of the rolling platform frame 602. The sprocket chain 604 is arranged on the rolling platform frame 602. The sprocket chain 604 is connected to the output shaft of the hydraulic motor 603. The clamp 607 and the lifting ring 608 are welded to the rolling platform frame 602. The rollers 606 are arranged at a certain interval and placed in the clamp 607, and are fixed by the rolling platform deck 605.

[0052] The working principle of the above technical solution is as follows: the function of the rolling platform guide rail 601 is to cooperate with the rolling platform guide rail guide frame 401 for guiding sliding, so that the platform movement is more stable during the rising process of the rolling platform 6; the function of the hydraulic motor 603 is to drive the sprocket chain 604 to rotate, and drive the materials to move on the rolling platform frame 602; the function of the roller 606 is to make the materials roll on the rolling platform frame 602, so as to facilitate the transportation of materials; the function of the lifting ring 608 is to be used for lifting, so as to facilitate the installation and disassembly of the rolling platform frame 602 on the trailer frame 2.

[0053] Embodiment 6

[0054] like Figure 1-7As shown, the lifting system 7 includes a bearing assembly 701, a lifting sprocket 702, a lifting bracket 703, a lifting cylinder assembly 704 and an oil pipe assembly 705. The bearing assembly 701 is guided by the lifting system bearing guide frame 402. The bearing assembly 701 is installed at both ends of the lifting bracket 703 by bolt connection. The lifting sprocket 702 is symmetrically fixedly connected to the lifting bracket 703. One end of the lifting sprocket 702 is connected to the vehicle frame 2 by a nut, and the other end is connected to the sprocket chain 604 by a nut. The upper end of the lifting cylinder assembly 704 is connected to the lifting bracket 703 by a pin shaft, the middle part of the lifting cylinder assembly 704 is connected to the vehicle frame 2, and the oil pipe assembly 705 is fixedly connected to the lifting bracket 703 by bolts.

[0055] The working principle of the above technical solution is as follows: the function of the bearing assembly 701 is to cooperate with the lifting system bearing guide frame 402 for guiding sliding, and to drive the rolling platform 6 to move upward more smoothly during the lifting process of the lifting system 7. The function of the lifting sprocket 702 is to drive the rolling platform 6 to rise. The lifting sprocket 702, the lifting bracket 703 and the lifting cylinder assembly 704 are the main force-bearing components when the rolling platform 6 drives the materials to rise and fall. The function of the oil pipe assembly 705 is to provide a power source for the lifting and lowering of the lifting cylinder assembly 704.

[0056] Embodiment 7

[0057] like Figure 1-7 As shown, a shock absorbing method is applied to a trailer frame with shock absorbing function as described in any one of the above items, comprising the following steps:

[0058] S1. When the trailer frame is moving forward, when the tire assembly 306 passes through a bumpy road, the impact load of the tire assembly 306 during the driving process is borne by the axle support beam 303 and the suspension assembly 309;

[0059] S2. The impact force is transmitted to the body frame 2 beams, and the rotary lock 305 locks the axle support beam 303 with the body frame 2 beams and the rolling platform 6 to reduce the shaking of the disconnected axle assembly 3 during driving;

[0060] S3. The role of the air suspension 307 and the copper wire shock absorber 308 is to absorb the impact load of the tire assembly 306 during the driving process;

[0061] The working principle of the above technical solution is as follows: the function of the axle support beam 303 and the suspension assembly 309 is to bear the impact load of the tire assembly 306 during driving and transfer the impact force to the body frame 2 beam; the function of the rotary lock 305 is to lock the axle support beam 303 with the body frame 2 beam and the rolling platform 6 before the vehicle travels with the transport vehicle, thereby reducing the shaking of the disconnected axle assembly 3 during driving and increasing driving stability; the function of the air suspension 307 and the copper wire shock absorber 308 is to absorb the impact load of the trailer frame during driving and play a shock-absorbing role.

[0062] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A trailer frame with shock absorption function, characterized in that: The invention comprises a vehicle body frame (2) and a disconnected axle assembly (3), wherein the disconnected axle assembly (3) comprises an axle support beam (303), the axle support beam (303) is connected to the vehicle body frame (2) via a rotating bearing assembly (301), a tire support component is welded to the axle support beam (303), an air suspension (307) and a copper wire shock absorber (308) are arranged between the axle support beam (303) and the tire support component, and a rotary lock (305) is arranged at the end of the axle support beam (303).

2. The trailer frame with shock absorption function according to claim 1, characterized in that: The tire support component comprises a connecting support frame (302), a tire assembly (306) and a suspension assembly (309); the connecting support frame (302) is welded in the middle of the axle support beam (303); the bottom of the connecting support frame (302) is fastened to the suspension assembly (309) by bolts; the tire assembly (306) is connected to the suspension assembly (309) by a rotating shaft; a pneumatic brake device is arranged on the rotating shaft; two ends of an air suspension (307) are respectively welded between the axle support beam (303) and the suspension assembly (309); and two ends of a copper wire shock absorber (308) are respectively welded between the axle support beam (303) and the suspension assembly (309).

3. The trailer frame with shock absorption function according to claim 2, characterized in that: A wheel cover (304) is provided above the tire assembly (306), and the wheel cover (304) is fixed to the middle section of the axle support beam (303) through a wheel cover bracket. The rotary lock (305) includes a rotary lock 1 and a rotary lock 2. The rotary lock 1 is fastened to the rolling platform (6) through a double nut, and the rotary lock 2 is fastened to the vehicle body frame (2) through a double nut.

4. The trailer frame with shock absorption function according to claim 3, characterized in that: The rotating bearing assembly (301) comprises an axle support (3011), one end of the axle support (3011) is fixedly connected to the vehicle body frame (2), and the other end of the axle support (3011) is rotatably connected to the end of the axle support beam (303) through a rotating bearing (3012), an anti-wear pad (3013) is provided at the connection between the axle support (3011) and the axle support beam (303), and the rotating bearing (3012) is threadedly connected to the bearing end cover (3014).

5. The trailer frame with shock absorption function according to claim 4, characterized in that: A relatively closed chamber is formed between the axle support beam (303) and the rotating bearing (3012), and a grease nipple (3015) is provided at the end of the axle support beam (303), through which grease can be injected into the chamber.

6. The trailer frame with shock absorption function according to claim 1, characterized in that: The invention also comprises an air circuit system (1), a gantry frame (4) and hydraulic legs (5); the air circuit system (1) is installed at the front end of the vehicle frame (2); the air circuit pipe in the air circuit system (1) is connected to the bottom of the vehicle frame (2) by means of a buckle; the gantry frame (4) is welded to the vehicle frame (2); the gantry frame (4) is slidably connected to the rolling platform (6); the vehicle frame (2) is a U-shaped structure as a whole; and the hydraulic legs (5) are installed at the four corner fulcrums of the vehicle frame (2) by means of bolts.

7. The trailer frame with shock absorption function according to claim 6, characterized in that: The gantry frame (4) comprises a rolling platform guide rail guide frame (401) and a lifting system bearing guide frame (402); the rolling platform guide rail guide frame (401) and the lifting system bearing guide frame (402) are both welded to the vehicle body frame (2); the rolling platform guide rail guide frame (401) guides the rolling platform (6), and the lifting system bearing guide frame (402) guides the lifting system (7).

8. The trailer frame with shock absorption function according to claim 7, characterized in that: The rolling platform (6) comprises a rolling platform guide rail (601), a rolling platform frame (602), a hydraulic motor (603), a sprocket chain (604), a rolling platform deck (605), a roller (606), a clamp (607) and a lifting ring (608). The rolling platform guide rail (601) is guided by the rolling platform guide rail guide frame (401). The lower end of the rolling platform guide rail (601) is fixedly connected to the rolling platform frame (602) by bolts. The hydraulic motor (603) is symmetrically installed on the bottom surface of the rolling platform frame (602) at an oblique angle, the sprocket chain (604) is arranged on the rolling platform frame (602), the sprocket chain (604) is connected to the output shaft of the hydraulic motor (603), the clamp (607) and the lifting ring (608) are welded to the rolling platform frame (602), the rollers (606) are arranged at a certain interval and placed in the clamp (607), and are fixed with the rolling platform deck (605).

9. The trailer frame with shock absorption function according to claim 7, characterized in that: The lifting system (7) comprises a bearing assembly (701), a lifting sprocket (702), a lifting bracket (703), a lifting cylinder assembly (704) and an oil pipe assembly (705). The bearing assembly (701) is guided by a lifting system bearing guide frame (402). The bearing assembly (701) is installed at both ends of the lifting bracket (703) by bolt connection. The lifting sprocket (702) is symmetrically fixedly connected to the lifting bracket (703). One end of the lifting sprocket (702) is connected to the vehicle body frame (2) by a nut, and the other end is connected to the sprocket chain (604) by a nut. The upper end of the lifting cylinder assembly (704) is connected to the lifting bracket (703) by a pin shaft. The middle part of the lifting cylinder assembly (704) is connected to the vehicle body frame (2). The oil pipe assembly (705) is fixedly connected to the lifting bracket (703) by bolts.

10. A shock absorbing method, applied to a trailer frame with shock absorbing function as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1. When the trailer frame is moving forward, when the tire assembly (306) passes over a bumpy road surface, the impact load of the tire assembly (306) during the driving process is borne by the axle support beam (303) and the suspension assembly (309); S2. The impact force is transmitted to the vehicle frame (2) beam, and the rotary lock (305) locks the axle support beam (303) with the vehicle frame (2) beam and the rolling platform (6), thereby reducing the shaking of the disconnected axle assembly (3) during driving; S3. The function of the air suspension (307) and the copper wire shock absorber (308) is to absorb the impact load of the tire assembly (306) during the driving process.

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