Damping suspension device and vehicle

Abstract

The utility model relates to a damping suspension device and a vehicle, the damping suspension device comprises a hinge seat, a damping arm, a driving wheel and a damping mechanism, the two ends of the damping arm in the length direction respectively form a hinge end and a damping mechanism mounting end, and a driving wheel mounting position is arranged in the middle of the damping arm in the length direction. The hinge end is hinged to the hinge seat around a first axis, the damping mechanism is arranged at the damping mechanism mounting end, the driving wheel mounting position is suitable for fixedly mounting the driving wheel, and the hinge seat is suitable for being fixed on a frame; the damping mechanism comprises a spring and a spring guiding structure used for guiding deformation of the spring, and the spring can stretch out and draw back when the driving wheel jumps up and down. Compared with the prior art that the top end of the shock absorber is connected with the support through an upper connecting rod, the shock absorption suspension device has the advantages that the upper connecting rod and the support can be omitted, the structural complexity of the shock absorption suspension device can be reduced, the number of parts can be reduced, and cost can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of suspension and relates to a shock-absorbing suspension device and a vehicle. Background Art

[0002] The related art discloses a shock-absorbing suspension device for AGV, including a floating plate, a connecting seat, a shock absorber, a bracket, a driving wheel and a driving device. One end of the floating plate is hinged to the connecting seat through a rotating flange, the bottom end of the shock absorber is fixed to the end of the floating plate away from the connecting seat through a lower connecting rod, the top end of the shock absorber is connected to the bracket through an upper connecting rod, and the driving wheel is arranged in the middle of the floating plate. The driving wheel and the vehicle body are not rigidly fixed, but are flexibly connected through the floating plate and the shock absorber. When the driving wheel encounters an uneven road surface during driving, the shock-absorbing effect is achieved through the elastic deformation of the shock absorber.

[0003] However, in the shock-absorbing suspension device for AGV in the related art, the top end of the shock absorber is connected to the bracket through an upper connecting rod. The added upper connecting rod and bracket cause the shock-absorbing suspension device to have a complex structure and many parts. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to provide a shock absorbing suspension device and a vehicle in view of the problem that the shock absorbing suspension device for AGV in the prior art has a complex structure and many parts.

[0005] In order to solve the above technical problems, on the one hand, the utility model provides a shock-absorbing suspension device, including an articulated seat, a shock-absorbing arm, a driving wheel and a shock-absorbing mechanism, wherein the two ends of the shock-absorbing arm in the length direction respectively form an articulated end and a shock-absorbing mechanism mounting end, a driving wheel mounting position is arranged in the middle part of the length direction of the shock-absorbing arm, the articulated end is articulated to the articulated seat around a first axis, the shock-absorbing mechanism is arranged at the shock-absorbing mechanism mounting end, the driving wheel mounting position is suitable for fixing the driving wheel, and the articulated seat is suitable for being fixed on a vehicle frame;

[0006] The vibration reduction mechanism includes a spring and a spring guide structure for guiding the deformation of the spring, and the spring can be expanded and contracted when the driving wheel jumps up and down.

[0007] According to the shock-absorbing suspension device of the embodiment of the utility model, a spring guide structure is provided so that the spring can be extended and retracted when the driving wheel jumps up and down. In this way, compared with the prior art in which the top of the shock absorber is connected to the bracket through an upper connecting rod, the upper connecting rod and the bracket can be eliminated, which can reduce the structural complexity of the shock-absorbing suspension device, reduce the number of parts, and reduce costs.

[0008] Optionally, the spring guide structure comprises a guide rod and a limiter, the spring is sleeved on the guide rod, and the limiter is arranged at the top end of the guide rod and abuts against the top end of the spring;

[0009] The bottom end of the spring abuts against the mounting end of the vibration reduction mechanism, and the bottom end of the guide rod passes through the mounting end of the vibration reduction mechanism and is suitable for being fixed on the vehicle frame.

[0010] Optionally, a limiting groove is provided at the mounting end of the vibration damping mechanism, the limiting groove has a top opening, a through hole is provided on the bottom wall of the limiting groove, the bottom end of the spring is accommodated in the limiting groove, and the bottom end surface of the spring abuts against the bottom wall of the limiting groove;

[0011] The limiting groove is a long groove, the through hole is a long hole, the length direction of the limiting groove and the through hole is the front-rear direction of the vehicle, the length of the limiting groove is greater than the outer diameter of the spring, the outer diameter of the spring is greater than the length of the through hole, and the bottom end of the guide rod can move in the through hole along the front-rear direction of the vehicle.

[0012] Optionally, the guide rod comprises a guide rod body and a first guide rod threaded section connected to the bottom end of the guide rod body, the guide rod body is cylindrical, the spring is sleeved on the guide rod body, and the first guide rod threaded section is suitable for being threadedly connected to the frame;

[0013] The outer diameter of the guide rod body is smaller than the length of the through hole.

[0014] Optionally, the limiting member includes an adjusting nut and a spring washer, the guide rod further includes a second threaded section of the guide rod, the adjusting nut is threadedly connected to the second threaded section and presses the spring washer against the top end surface of the spring.

[0015] Optionally, the driving wheel comprises a driving wheel body and a driving wheel axle arranged at the center of the driving wheel body;

[0016] It also includes a mounting block, the driving wheel mounting position is provided with a mounting block receiving groove, the bottom of the mounting block is provided with a first half groove, the bottom wall of the mounting block receiving groove is provided with a second half groove, the mounting block is fixed in the mounting block receiving groove, and the first half groove and the second half groove are connected to form a driving wheel axle mounting groove, and the driving wheel axle is fixedly penetrated through the driving wheel axle mounting groove.

[0017] Optionally, a notch is provided on the driving wheel shaft, the bottom surface of the notch is a first rotation limiting plane, the two axial side surfaces of the notch along the driving wheel shaft are respectively a first axial limiting surface and a second axial limiting surface, and the bottom of the first half groove is provided with a second rotation limiting plane;

[0018] The first rotation limiting plane is in contact with the second rotation limiting plane to limit the relative rotation between the driving wheel shaft and the shock absorbing arm;

[0019] The first axial limiting surface is in contact with the surface of the mounting block and the driving wheel mounting position on one side close to the driving wheel body, and the second axial limiting surface is in contact with the surface of the mounting block and the driving wheel mounting position on one side away from the driving wheel body to limit the axial displacement of the driving wheel.

[0020] Optionally, a plurality of threaded holes are provided on the bottom wall of the mounting block receiving groove, and a plurality of through holes corresponding to the plurality of threaded holes are provided on the mounting block;

[0021] It also includes a plurality of mounting bolts, each of which passes through the corresponding through hole and is threadedly connected in the corresponding threaded hole.

[0022] Optionally, the length direction of the shock absorbing arm is the front-rear direction of the vehicle.

[0023] Optionally, a rotating shaft is further included, the hinged end is provided with an axial hole, and the rotating shaft is rotatably accommodated in the axial hole around the first axis; wherein the axis of the rotating shaft coincides with the first axis.

[0024] Optionally, it further includes a first sleeve and a second sleeve, wherein the first sleeve is fitted on one end of the shaft hole, and the second sleeve is fitted on the other end of the shaft hole, and the rotating shaft is rotatably fitted in the first sleeve and the second sleeve.

[0025] Optionally, the articulated seat comprises a bottom plate, a first mounting plate and a second mounting plate, the first mounting plate and the second mounting plate are vertically connected to the bottom plate, and the bottom plate is suitable for being fixed on the frame; the first mounting plate is provided with a first mounting hole, and the second mounting plate is provided with a second mounting hole;

[0026] The hinged end is located between the first mounting plate and the second mounting plate, and the rotating shaft passes through the first mounting hole, the shaft hole and the second mounting hole.

[0027] Optionally, the first sleeve comprises a first sleeve body and a first sleeve flange connected to one end of the first sleeve body, the first sleeve flange protrudes from the outer circumference of the first sleeve body in a radial direction; the second sleeve comprises a second sleeve body and a second sleeve flange connected to one end of the second sleeve body, the second sleeve flange protrudes from the outer circumference of the second sleeve body in a radial direction; the first sleeve body is assembled at one end of the shaft hole, and the second sleeve body is assembled at the other end of the shaft hole;

[0028] The first sleeve flange is clamped between a side surface of the first mounting plate facing the second mounting plate and a side surface of the hinged end away from the second mounting plate, and the second sleeve flange is clamped between a side surface of the second mounting plate facing the first mounting plate and a side surface of the hinged end away from the first mounting plate.

[0029] Optionally, the rotating shaft comprises a rotating shaft head, a rotating shaft optical axis section and a rotating shaft threaded section which are connected in sequence and have gradually decreasing diameters, the rotating shaft optical axis section passes through the first mounting hole, the shaft hole and the second mounting hole and is rotatably assembled in the first shaft sleeve and the second shaft sleeve, and the rotating shaft threaded section passes through the second mounting hole;

[0030] The rotating shaft head is attached to a surface of the first mounting plate on a side away from the second mounting plate;

[0031] It also includes a locking nut, which is threadedly connected to the threaded section of the rotating shaft to clamp the second sleeve flange between a side surface of the second mounting plate facing the first mounting plate and a side surface of the hinged end away from the first mounting plate.

[0032] Optionally, the hinged end includes a hinge plate and a boss, one end of the hinge plate is connected to the drive wheel mounting position, and the other end is provided with a first through hole, the boss is connected to a side surface of the other end of the hinge plate away from the first mounting plate, and a second through hole is provided in the boss, and the first through hole and the second through hole are interconnected to form the shaft hole.

[0033] On the other hand, an embodiment of the utility model further provides a vehicle, comprising the above-mentioned shock-absorbing suspension device.

[0034] The vehicle provided by the embodiment of the utility model has all the advantages of the above-mentioned shock-absorbing suspension device. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of a shock-absorbing suspension device provided by an embodiment of the utility model;

[0036] Figure 2 It is an exploded view of a shock-absorbing suspension device provided by an embodiment of the utility model;

[0037] Figure 3 It is a top view of a shock absorbing arm of a shock absorbing suspension device provided by an embodiment of the utility model;

[0038] Figure 4 It is an exploded view of a vibration reduction mechanism of a vibration reduction suspension device provided in one embodiment of the utility model.

[0039] The reference numerals in the specification are as follows:

[0040] 1. hinge seat; 11. bottom plate; 12. first mounting plate; 121. first mounting hole; 13. second mounting plate; 131. second mounting hole;

[0041] 2. shock absorbing arm; 21. hinged end; 211. shaft hole; 212. hinged plate; 213. boss; 22. mounting end of vibration damping mechanism; 221. limiting groove; 2211. bottom wall of limiting groove; 222. through hole; 23. driving wheel mounting position; 231. mounting block receiving groove; 232. second half groove; 233. threaded hole;

[0042] 3. driving wheel; 31. driving wheel body; 32. driving wheel shaft; 321. notch; 3211. first rotation limiting plane; 3212. first axial limiting surface; 3213. second axial limiting surface;

[0043] 4. Vibration reduction mechanism; 41. Spring; 42. Guide rod; 421. Guide rod body; 422. First threaded section of guide rod; 423. Second threaded section of guide rod; 43. Position limiting member; 431. Adjusting nut; 432. Spring washer; 433. Adjusting gasket;

[0044] 5. Mounting block; 51. First half slot; 511. Second rotation limiting plane; 52. Via hole;

[0045] 6. rotating shaft; 61. rotating shaft head; 62. rotating shaft optical axis section; 63. rotating shaft thread section;

[0046] 7. first sleeve; 71. first sleeve body; 72. first sleeve body;

[0047] 8. Second sleeve; 81. Second sleeve body; 82. Second sleeve body;

[0048] 9. Locking nut;

[0049] 10. Gasket. DETAILED DESCRIPTION

[0050] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0051] See also Figures 1 to 4The shock-absorbing suspension device provided by one embodiment of the utility model comprises an articulated seat 1, a shock-absorbing arm 2, a driving wheel 3 and a shock-absorbing mechanism 4. The two ends of the shock-absorbing arm 2 in the length direction respectively form an articulated end 21 and a shock-absorbing mechanism mounting end 22. The middle part of the shock-absorbing arm 2 in the length direction is provided with a driving wheel mounting position 23. The articulated end 21 is articulated to the articulated seat 1 around a first axis. The shock-absorbing mechanism 4 is provided at the shock-absorbing mechanism mounting end 22. The driving wheel mounting position 23 is suitable for fixing and mounting the driving wheel 3. The articulated seat 1 is suitable for being fixed on a vehicle frame. The shock-absorbing mechanism 4 comprises a spring 41 and a spring guide structure for guiding the deformation of the spring 41. The spring 41 can be extended and retracted when the driving wheel 3 jumps up and down. In this way, when the driving wheel 3 passes over an undulating road surface, the shock-absorbing arm 2 is driven to swing around the first axis relative to the articulated seat 1, thereby driving the spring 41 to float up and down (extend and retract), thereby achieving the shock-absorbing effect of the shock-absorbing suspension device.

[0052] According to the shock-absorbing suspension device of the embodiment of the utility model, a spring guide structure is provided so that the spring can be extended and retracted when the driving wheel jumps up and down. In this way, compared with the prior art in which the top of the shock absorber is connected to the bracket through an upper connecting rod, the upper connecting rod and the bracket can be eliminated, which can reduce the structural complexity of the shock-absorbing suspension device, reduce the number of parts, and reduce costs.

[0053] In one embodiment, see Figure 1 , Figure 2 and Figure 4 The spring guide structure includes a guide rod 42 and a limiter 43. The spring 41 is sleeved on the guide rod 42. The limiter 43 is arranged at the top of the guide rod 42 and abuts against the top of the spring 41. The bottom end of the spring 41 abuts against the mounting end 22 of the damping mechanism. The bottom end of the guide rod 42 passes through the mounting end 22 of the damping mechanism and is suitable for being fixed on the vehicle frame.

[0054] In one embodiment, see Figures 1 to 3 The damping mechanism mounting end 22 is provided with a limiting groove 221, the limiting groove 221 has a top opening, and a through hole 222 is provided on the bottom wall 2211 of the limiting groove 221. The bottom end of the spring 41 is accommodated in the limiting groove 221, and the bottom end surface of the spring 41 abuts against the bottom wall 2211 of the limiting groove 221. In this way, the bottom end of the spring 41 is limited by the bottom wall 2211 of the limiting groove 221.

[0055] In one embodiment, see Figure 3, the limiting groove 221 is a long groove, the through hole 222 is a long hole, the length direction of the limiting groove 221 and the through hole 222 is the front-rear direction of the vehicle, the outer diameter of the spring 41 is greater than the length of the through hole 222, so that the bottom end of the spring 41 will not pass through the through hole 222. The length of the limiting groove 221 is greater than the outer diameter of the spring 41, and the bottom end of the guide rod 42 can move in the through hole 222 along the front-rear direction of the vehicle. The limiting groove 221 is set as a long groove, and the through hole 222 is set as a long hole. When the shock absorber arm 2 swings, the spring 41 can move in the limiting groove 221, and the guide rod 42 can move in the through hole 222. Preferably, refer to Figure 3 The limiting groove 221 is an oblong groove, and the through hole 222 is an oblong hole.

[0056] In one embodiment, the length direction of the shock absorbing arm 2 is the front-rear direction of the vehicle.

[0057] In one embodiment, see Figure 4 The guide rod 42 includes a guide rod body 421 and a first guide rod threaded section 422 connected to the bottom end of the guide rod body 421. The guide rod body 421 is cylindrical. The spring 41 is sleeved on the guide rod body 421. The guide rod first threaded section 422 is suitable for threaded connection with the frame. The outer diameter of the guide rod body 421 is smaller than the length of the through hole 222.

[0058] In one embodiment, see Figure 2 and Figure 4 The limiting member 43 includes an adjusting nut 431 and a spring washer 432, and the guide rod 42 also includes a second threaded section 423 of the guide rod. The adjusting nut 431 is threadedly connected to the second threaded section 423 and presses the spring washer 432 against the top surface of the spring 41. In this way, the top end of the spring 41 is limited by the limiting member 43. That is, the upper limit of the spring 41 is located between the spring washer 432 and the bottom wall 2211 of the limiting groove 221 in the axial direction. When the mounting end 22 of the damping mechanism swings upward, the spring 41 is compressed.

[0059] In one embodiment, see Figure 4 The stopper 43 further includes at least one adjusting washer 433 disposed between the spring washer 432 and the adjusting nut 431. The adjusting washer 433 can prevent the adjusting nut 431 from slipping, so that the adjusting nut 431 is not easy to loosen.

[0060] In one embodiment, see Figure 1 and Figure 2The driving wheel 3 includes a driving wheel body 31 and a driving wheel shaft 32 arranged at the center of the driving wheel body 31; the driving wheel shaft 32 is roughly cylindrical. It also includes a mounting block 5, the driving wheel mounting position 23 is provided with a mounting block receiving groove 231, the bottom of the mounting block 5 is provided with a first half groove 51, the bottom wall of the mounting block receiving groove 231 is provided with a second half groove 232, the mounting block 5 is fixed in the mounting block receiving groove 231, and the first half groove 51 and the second half groove 232 are connected to form a driving wheel shaft mounting groove, and the driving wheel shaft 32 is fixedly penetrated in the driving wheel shaft mounting groove.

[0061] In one embodiment, see Figure 2 The driving wheel shaft 32 is provided with a notch 321, the bottom surface of the notch 321 is a first rotation limiting plane 3211, the two axial surfaces of the notch 321 along the driving wheel shaft 32 are respectively a first axial limiting surface 3212 and a second axial limiting surface 3213, and the bottom of the first half groove 51 is provided with a second rotation limiting plane 511; the first rotation limiting plane 3211 is fitted with the second rotation limiting plane 511 to limit the relative rotation between the driving wheel shaft 32 and the shock absorber arm 2; the first axial limiting surface 3212 is fitted with a side surface of the mounting block 5 and the driving wheel mounting position 23 close to the driving wheel body 31, and the second axial limiting surface 3123 is fitted with a side surface of the mounting block 5 and the driving wheel mounting position 23 away from the driving wheel body 31 to limit the axial displacement of the driving wheel 3. In this way, the driving wheel 3 is fixedly mounted on the shock absorber arm 2.

[0062] In the prior art, the driving wheel 3 is fixed on the shock absorbing arm 2 by using a reducer flange and a floating plate structure. In the present application, the driving wheel 3 is installed and fixed by using an upper and lower fixing method of the shock absorbing arm 2 and the mounting block 5. The structure is simple and reliable, and it is easy to disassemble and assemble, and the subsequent maintenance is simple and quick.

[0063] In one embodiment, see Figure 2 The bottom wall of the mounting block receiving groove 231 is provided with a plurality of threaded holes 233, and the mounting block 5 is provided with a plurality of through holes 52 corresponding to the plurality of threaded holes 233; and also includes a plurality of mounting bolts 6, each of which passes through the corresponding through hole 52 and is threadedly connected to the corresponding threaded hole 233. In this way, the mounting block 5 is fixed on the shock absorbing arm 2.

[0064] In one embodiment, see Figure 1 and Figure 2 , further comprising a rotating shaft 6, the hinge end 21 being provided with an axial hole 211, the rotating shaft 6 being rotatably received in the axial hole 211 around the first axis; wherein the axis of the rotating shaft 6 coincides with the first axis. The rotating shaft 6 is used to realize the hinge connection between the shock absorbing arm 2 and the hinge seat 1.

[0065] In one embodiment, see Figure 1 and Figure 2 , also includes a first sleeve 7 and a second sleeve 8, the first sleeve 7 is assembled at one end of the shaft hole 211, the second sleeve 8 is assembled at the other end of the shaft hole 211, and the rotating shaft 6 is rotatably assembled in the first sleeve 7 and the second sleeve 8 to reduce the friction of the rotating shaft 6, reduce the wear of the rotating shaft 6, and extend the service life of the rotating shaft 6.

[0066] In one embodiment, see Figure 1 and Figure 2 The articulated seat 1 includes a base plate 11, a first mounting plate 12 and a second mounting plate 13, the first mounting plate 12 and the second mounting plate 13 are vertically connected to the base plate 11, and the base plate 11 is suitable for being fixed to the frame, for example, being fixed to the frame by bolts; a first mounting hole 121 is provided on the first mounting plate 12, and a second mounting hole 131 is provided on the second mounting plate 13; the articulated end 21 is located between the first mounting plate 12 and the second mounting plate 13, and the rotating shaft 6 passes through the first mounting hole 121, the shaft hole 211 and the second mounting hole 131.

[0067] In one embodiment, see Figure 1 and Figure 2 The first sleeve 7 includes a first sleeve body 71 and a first sleeve flange 72 connected to one end of the first sleeve body 71, the first sleeve body 72 is cylindrical, the first sleeve flange 72 is annular, and the first sleeve flange 72 protrudes from the outer periphery of the first sleeve body 71 along its radial direction; the second sleeve 8 includes a second sleeve body 81 and a second sleeve flange 82 connected to one end of the second sleeve body 81, and the second sleeve flange 82 protrudes from the outer periphery of the second sleeve body 81 along its radial direction; the first sleeve body 71 is assembled at one end of the shaft hole 211, and the second sleeve body 81 is assembled at the other end of the shaft hole 211. The first sleeve flange 72 is clamped between a side surface of the first mounting plate 12 facing the second mounting plate 13 and a side surface of the hinged end 21 away from the second mounting plate 13, and the second sleeve flange 82 is clamped between a side surface of the second mounting plate 13 facing the first mounting plate 12 and a side surface of the hinged end 21 away from the first mounting plate 12.

[0068] In one embodiment, see Figure 1 and Figure 2The rotating shaft 6 includes a rotating shaft head 61, a rotating shaft smooth axis section 62 and a rotating shaft threaded section 63 which are connected in sequence and have gradually decreasing diameters. The rotating shaft smooth axis section 62 passes through the first mounting hole 121, the shaft hole and the second mounting hole 131 and is rotatably assembled in the first shaft sleeve 7 and the second shaft sleeve 8, and the rotating shaft threaded section 63 passes through the second mounting hole 131; the rotating shaft head 61 is attached to the side surface of the first mounting plate 12 away from the second mounting plate 13; and also includes a locking nut 9, which is threadedly connected to the rotating shaft threaded section 63 to clamp the second shaft sleeve flange 82 between the side surface of the second mounting plate 13 facing the first mounting plate 12 and the side surface of the hinged end 23 away from the first mounting plate 12.

[0069] In one embodiment, see Figure 2 , further comprising at least one gasket 10 , wherein the gasket 10 is disposed between the locking nut 9 and the second mounting plate 13 .

[0070] In one embodiment, see Figure 2 The hinge end 21 includes a hinge plate 212 and a boss 213. One end of the hinge plate 212 is connected to the drive wheel mounting position 23, and the other end is provided with a first through hole. The boss 213 is connected to the other end of the hinge plate 121 away from the surface of the first mounting plate 12. A second through hole is provided in the boss 213. The first through hole and the second through hole are connected to each other to form the shaft hole 211. Compared with only providing the first through hole on the hinge plate 212, providing the boss 213 and connecting the second through hole with the first through hole is equivalent to lengthening the length of the shaft hole 211. The use of the lengthened integrated shaft hole 211 replaces the rotating flange and screw fixing structure in the prior art, reduces the number of parts matching the same shaft and the coaxial error, reduces the axial movement of the shock absorber arm 2, and improves the connection strength and stability at the hinge end 21.

[0071] In another embodiment, a guide tube may be used instead of the guide rod, and the guide tube is sleeved on the outside of the spring, that is, the guide tube is in contact with the outer peripheral surface of the spring for guidance.

[0072] On the other hand, an embodiment of the utility model further provides a vehicle, comprising the above-mentioned shock-absorbing suspension device.

[0073] The vehicle is, for example, an AGV or an AMR.

[0074] The vehicle provided by the embodiment of the utility model has all the advantages of the above-mentioned shock-absorbing suspension device.

[0075] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A shock-absorbing suspension device, characterized in that: The vehicle comprises an articulated seat, a shock absorbing arm, a driving wheel and a shock absorbing mechanism, wherein the two ends of the shock absorbing arm in the length direction respectively form an articulated end and a shock absorbing mechanism mounting end, a driving wheel mounting position is arranged in the middle part of the shock absorbing arm in the length direction, the articulated end is articulated to the articulated seat around a first axis, the shock absorbing mechanism is arranged at the shock absorbing mechanism mounting end, the driving wheel mounting position is suitable for fixing the driving wheel, and the articulated seat is suitable for being fixed on a vehicle frame; The vibration reduction mechanism includes a spring and a spring guide structure for guiding the deformation of the spring, and the spring can be extended and retracted when the driving wheel jumps up and down; The spring guide structure includes a guide rod and a limiter, the spring is sleeved on the guide rod, and the limiter is arranged at the top end of the guide rod and abuts against the top end of the spring; A limiting groove is provided at the mounting end of the vibration damping mechanism, the limiting groove has a top opening, a through hole is provided on the bottom wall of the limiting groove, the bottom end of the spring is accommodated in the limiting groove, and the bottom end surface of the spring abuts against the bottom wall of the limiting groove.

2. The shock-absorbing suspension device according to claim 1, characterized in that: The bottom end of the guide rod passes through the mounting end of the vibration reduction mechanism and is suitable for being fixed on the vehicle frame.

3. The shock-absorbing suspension device according to claim 2, characterized in that: The limiting groove is a long groove, the through hole is a long hole, the length direction of the limiting groove and the through hole is the front-rear direction of the vehicle, the length of the limiting groove is greater than the outer diameter of the spring, the outer diameter of the spring is greater than the length of the through hole, and the bottom end of the guide rod can move in the through hole along the front-rear direction of the vehicle.

4. The shock-absorbing suspension device according to claim 3, characterized in that: The guide rod comprises a guide rod body and a first guide rod threaded section connected to the bottom end of the guide rod body, the guide rod body is cylindrical, the spring is sleeved on the guide rod body, and the first guide rod threaded section is suitable for being threadedly connected to the frame; The outer diameter of the guide rod body is smaller than the length of the through hole.

5. The shock-absorbing suspension device according to claim 4, characterized in that: The limiting member includes an adjusting nut and a spring washer, the guide rod also includes a second threaded section of the guide rod, the adjusting nut is threadedly connected to the second threaded section and presses the spring washer against the top end surface of the spring.

6. The shock-absorbing suspension device according to claim 1, characterized in that: The driving wheel comprises a driving wheel body and a driving wheel shaft arranged at the center of the driving wheel body; It also includes a mounting block, the driving wheel mounting position is provided with a mounting block receiving groove, the bottom of the mounting block is provided with a first half groove, the bottom wall of the mounting block receiving groove is provided with a second half groove, the mounting block is fixed in the mounting block receiving groove, and the first half groove and the second half groove are connected to form a driving wheel axle mounting groove, and the driving wheel axle is fixedly penetrated through the driving wheel axle mounting groove.

7. The shock-absorbing suspension device according to claim 6, characterized in that: The driving wheel shaft is provided with a notch, the bottom surface of the notch is a first rotation limiting plane, the two axial surfaces of the notch along the driving wheel shaft are respectively a first axial limiting surface and a second axial limiting surface, and the bottom of the first half groove is provided with a second rotation limiting plane; The first rotation limiting plane is in contact with the second rotation limiting plane to limit the relative rotation between the driving wheel shaft and the shock absorbing arm; The first axial limiting surface is in contact with the surface of the mounting block and the driving wheel mounting position on one side close to the driving wheel body, and the second axial limiting surface is in contact with the surface of the mounting block and the driving wheel mounting position on one side away from the driving wheel body to limit the axial displacement of the driving wheel.

8. The shock-absorbing suspension device according to claim 6, characterized in that: A plurality of threaded holes are arranged on the bottom wall of the mounting block receiving groove, and a plurality of through holes corresponding to the plurality of threaded holes are arranged on the mounting block; It also includes a plurality of mounting bolts, each of which passes through the corresponding through hole and is threadedly connected in the corresponding threaded hole.

9. The shock-absorbing suspension device according to claim 8, characterized in that: The length direction of the shock absorbing arm is the front-rear direction of the vehicle.

10. The shock-absorbing suspension device according to claim 1, characterized in that: It also includes a rotating shaft, the hinged end is provided with an axial hole, and the rotating shaft is rotatably accommodated in the axial hole around the first axis; wherein the axis of the rotating shaft coincides with the first axis.

11. The shock-absorbing suspension device according to claim 10, characterized in that: It also includes a first sleeve and a second sleeve, wherein the first sleeve is fitted on one end of the shaft hole, and the second sleeve is fitted on the other end of the shaft hole, and the rotating shaft is rotatably fitted in the first sleeve and the second sleeve.

12. The shock-absorbing suspension device according to claim 11, characterized in that: The hinge seat comprises a bottom plate, a first mounting plate and a second mounting plate, wherein the first mounting plate and the second mounting plate are vertically connected to the bottom plate, and the bottom plate is suitable for being fixed on the frame; a first mounting hole is provided on the first mounting plate, and a second mounting hole is provided on the second mounting plate; The hinged end is located between the first mounting plate and the second mounting plate, and the rotating shaft passes through the first mounting hole, the shaft hole and the second mounting hole.

13. The shock-absorbing suspension device according to claim 12, characterized in that: The first sleeve comprises a first sleeve body and a first sleeve flange connected to one end of the first sleeve body, the first sleeve flange protrudes from the outer circumference of the first sleeve body in a radial direction; the second sleeve comprises a second sleeve body and a second sleeve flange connected to one end of the second sleeve body, the second sleeve flange protrudes from the outer circumference of the second sleeve body in a radial direction; the first sleeve body is assembled at one end of the shaft hole, and the second sleeve body is assembled at the other end of the shaft hole; The first sleeve flange is clamped between a side surface of the first mounting plate facing the second mounting plate and a side surface of the hinged end away from the second mounting plate, and the second sleeve flange is clamped between a side surface of the second mounting plate facing the first mounting plate and a side surface of the hinged end away from the first mounting plate.

14. The shock-absorbing suspension device according to claim 13, characterized in that: The rotating shaft comprises a rotating shaft head, a rotating shaft optical axis section and a rotating shaft threaded section which are connected in sequence and have gradually decreasing diameters, the rotating shaft optical axis section passes through the first mounting hole, the shaft hole and the second mounting hole and is rotatably assembled in the first shaft sleeve and the second shaft sleeve, and the rotating shaft threaded section passes through the second mounting hole; The rotating shaft head is attached to a surface of the first mounting plate on a side away from the second mounting plate; It also includes a locking nut, which is threadedly connected to the threaded section of the rotating shaft to clamp the second sleeve flange between a side surface of the second mounting plate facing the first mounting plate and a side surface of the hinged end away from the first mounting plate.

15. The shock-absorbing suspension device according to claim 12, characterized in that: The hinged end includes a hinge plate and a boss, one end of the hinge plate is connected to the driving wheel mounting position, and the other end is provided with a first through hole, the boss is connected to a side surface of the other end of the hinge plate away from the first mounting plate, and a second through hole is provided in the boss, and the first through hole and the second through hole are interconnected to form the shaft hole.

16. A vehicle, characterized in that: A shock absorbing suspension device comprising any one of claims 1-15.

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