Adjustment device and guided vehicle

Abstract

The present invention relates to an adjustment device and a guide vehicle, wherein the adjustment device is used for a shock absorber of the guide vehicle, the adjustment device is installed on at least one of the two side surfaces of the guide vehicle in the vehicle width direction or the vehicle length direction, and the adjustment device comprises: a driving part, which is used to be arranged on the side of the guide vehicle; an adjustment part, one end of which is connected to the driving part along the vehicle height direction, and the other end is used to be connected to the shock absorber, and the driving part can make a circumferential motion to drive the adjustment part to move along the extension direction of the shock absorber so that the elastic element of the shock absorber is compressed or stretched. The guide vehicle uses the adjustment device of the present invention to adjust the friction force of the wheel on the ground, and is easy to use.

Description

Technical Field

[0001] The present invention relates to the technical field of guided vehicles, and in particular to an adjusting device and a guided vehicle. Background Art

[0002] The manufacturing industry will enter a new stage in the 21st century, and agile manufacturing will become the dominant mode of enterprises. AGV (Automated Guided Vehicle) is an important equipment in the logistics system of modern manufacturing enterprises. It is mainly used to store and transport various materials, providing an important guarantee for the flexibility, integration and efficient operation of the system. There are two main types of AGVs. One is a fixed-path AGV, which has a fixed running path and a track, so the guidance technology is relatively simple; the other is a free-path AGV, which provides the greatest possibility for the free operation of AGV due to the lack of a track. The traditional AGV chassis travel mechanism adopts a three-wheel, four-wheel, six-wheel or crawler chassis structure.

[0003] Among them, the three-wheel type has a simple structure and does not slip due to the installation height of the structure; the four-wheel type has a structure similar to the chassis layout of a car, in which the two wheels on the same axis are driving wheels, and the other two wheels are controlled steering wheels. The advantage is the simple structure, and the disadvantage is that the turning radius is large and it cannot achieve turning on the spot.

[0004] The six-wheel structure is the walking layout structure adopted by most AGVs now. Its advantage is that it can realize reciprocating linear motion. The drive wheels are arranged on the central axis of the vehicle body to realize on-the-spot turning, and the turning radius is relatively small.

[0005] For example, a Chinese patent document with publication number CN203786563U provides a six-wheel AGV self-guided vehicle, including a vehicle body and a guidance system. The vehicle body includes a frame and three rows of wheels located below the frame, each row of wheels has two wheels, the three rows of wheels are parallel to each other, and the two wheels contained in each row of wheels are symmetrically arranged along the center line of the frame, wherein the two wheels contained in the first row of wheels are universal wheels, the two wheels contained in the second row of wheels are driving wheels, and the two wheels contained in the third row of wheels are fixed wheels. The vehicle body adopts two universal wheels, two fixed wheels, and two driving wheels. Compared with the vehicle body with a four-wheel structure, the turning radius is smaller and the direction is easier to control.

[0006] At present, almost all AGVs on the market have shock-absorbing structures on their drive groups, in order to better protect the drive module and to have a shock-absorbing effect to ensure smooth driving. However, when the existing AGV has a large load passing over the boss or is unloaded, the friction between the drive wheel and the ground will change significantly, causing trouble for use. Summary of the invention

[0007] In order to solve the above-mentioned problems, the purpose of the present invention is to provide an adjusting device for a shock absorber of a guide vehicle, wherein the adjusting device is installed on at least one of the two side surfaces of the guide vehicle in the vehicle width direction or the vehicle length direction, and the adjusting device comprises: a driving part, which is used to be arranged on the side surface of the guide vehicle; an adjusting part, which is connected to the driving part at one end along the vehicle height direction and is used to be connected to the shock absorber at the other end, and the driving part can make circumferential motion to drive the adjusting part to move along the extension direction of the shock absorber so that the elastic element of the shock absorber is compressed or stretched.

[0008] Furthermore, the adjusting portion can be locked with the driving portion after the driving portion stops circumferential motion.

[0009] Further, the driving part comprises: a worm, the worm is provided with helical teeth, and the worm can make circumferential motion;

[0010] The adjustment unit comprises:

[0011] a gear meshing with the helical teeth;

[0012] A main body is used to connect with the shock absorber, and a rack is provided on the part of the main body facing the gear, and the rack is meshed with the gear.

[0013] Furthermore, the helical teeth include: a first helical tooth and a second helical tooth arranged on the worm at intervals; the gear includes:

[0014] a first gear meshing with the first helical tooth;

[0015] a second gear meshing with the second helical tooth;

[0016] The rack comprises:

[0017] A first rack, disposed at a portion of the body facing the first gear and meshing with the first gear;

[0018] A second rack, disposed on a portion of the body facing the second gear and meshing with the second gear;

[0019] The rotation directions of the first helical teeth and the second helical teeth satisfy that after the worm makes a circumferential motion, the movement directions of the first rack and the second rack are consistent.

[0020] Further, the first helical teeth and the second helical teeth have opposite rotation directions, and the first gear and the second gear are located on the same side of the worm.

[0021] Further, the driving unit includes: a ball screw, the ball screw having a screw;

[0022] The adjustment unit comprises:

[0023] A nut is sleeved on the lead screw, and the circumferential motion of the lead screw can be converted into the linear motion of the nut;

[0024] The body is used to move along the extension direction of the shock absorber, and the body is connected to the nut.

[0025] Further, the lead screw comprises: a first lead screw and a second lead screw parallel to each other;

[0026] The nut comprises:

[0027] A first nut, sleeved on the first lead screw;

[0028] A second nut, sleeved on the second lead screw;

[0029] The body is connected to the first nut and the second nut respectively.

[0030] Furthermore, it also includes a guide portion extending along the first direction, the adjusting portion has a through hole, the adjusting portion is slidably mounted on the guide portion through the through hole, and the movement direction of the adjusting portion is consistent with the first direction.

[0031] Furthermore, there are two or more guide parts, which are parallel to each other.

[0032] Furthermore, it also includes a fixing part, which is used to be arranged on the side of the guide vehicle, and the guiding part is fixed to the fixing part.

[0033] Furthermore, it also includes a reinforcing rib, which is arranged on a side of the fixing portion facing away from the guiding portion.

[0034] Furthermore, the reinforcing ribs are multiple and arranged at intervals.

[0035] Furthermore, the other end of the adjusting part is connected to the shock absorber through a ball joint.

[0036] The present invention also provides a guided vehicle, comprising: a vehicle body;

[0037] Wheels are provided on two side surfaces of the vehicle body in the vehicle width direction or the vehicle length direction, and at least one of the two side surfaces is equipped with any one of the above-mentioned adjustment devices;

[0038] A shock absorber, one end of which is connected to the adjusting part, and the other end of which is connected to the wheel.

[0039] Furthermore, it also includes a mounting portion, which is disposed at the bottom of the vehicle body and is rotatably connected to the vehicle body;

[0040] The mounting portion is provided with a motor, and the output shaft of the motor is connected to the wheel;

[0041] One end of the shock absorber is connected to the adjusting part, and the other end is connected to the mounting part.

[0042] Furthermore, the wheel is a driving wheel.

[0043] As described above, the shock absorber adjustment device provided by the present invention is used on the AGV, the adjustment part in the adjustment device is connected to the shock absorber, and the driving part can drive the adjustment part to move along the extension direction of the shock absorber, so that the elastic element is compressed or stretched. When the pressure of the driving wheel on the ground is too small, causing the driving wheel to "slip" in place, the driving part drives the adjustment part to move along the extension direction of the shock absorber, so that the elastic element is compressed, and then the shock absorber increases the pressure on the driving wheel of the AGV; the pressure of the driving wheel on the ground increases, which increases the friction force, thereby solving the problem of the driving wheel "slipping" in place.

[0044] When the AGV is unloaded, the weight of the vehicle body is not enough to compress the spring, causing the vehicle body to be supported by the driving wheel. The driving unit drives the adjustment unit to move along the extension direction of the shock absorber, so that the elastic element is compressed, and then the shock absorber increases the pressure on the driving wheel of the AGV; the pressure of the driving wheel on the ground increases, solving the problem of the vehicle body being supported by the driving wheel. When the AGV is loaded, in order to realize the shock absorbing function of the shock absorber, the driving unit can drive the adjustment unit to move along the extension direction of the shock absorber, so that the elastic element is stretched, and then the shock absorber reduces the pressure on the driving wheel of the AGV; the shock absorber performs its shock absorbing function.

[0045] In order to make the above contents of the present invention more clearly understood, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 The three-dimensional guide vehicle with the adjustment device installed in the embodiment of the present invention Figure 1 ;

[0047] Figure 2 A side view of a guided vehicle equipped with an adjustment device according to an embodiment of the present invention Figure 1 ;

[0048] Figure 3 A side view of a guided vehicle equipped with an adjustment device according to an embodiment of the present invention Figure 2 ;

[0049] Figure 4 The three-dimensional guide vehicle with the adjustment device installed in the embodiment of the present invention Figure 2 ;

[0050] Figure 5 The three-dimensional guide vehicle with the adjustment device installed in the embodiment of the present invention Figure 3 . DETAILED DESCRIPTION

[0051] The following specific embodiments illustrate the implementation of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this invention are limited to this implementation. On the contrary, the purpose of introducing the invention in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description.

[0052] refer to Figure 1 The present invention provides an adjustment device for the shock absorber 22 of the guide vehicle 20, and the adjustment device is installed in the vehicle width direction ( Figure 1 X direction) or vehicle length direction ( Figure 1 In this embodiment, shock absorbers 22 connected to the wheels 21 are provided on both sides of the guide vehicle 20 in the vehicle width direction, and an adjustment device is installed on each side A; in other embodiments, the adjustment device may be installed on one of the sides in the vehicle width direction.

[0053] refer to Figure 2 Combined with Figure 1 As shown, the adjusting device of this embodiment includes: a driving unit 10 and an adjusting unit 11 located on the same side of the guide vehicle 20; the driving unit 10 is used to be arranged on the side A of the guide vehicle 20, and the adjusting unit 11 is arranged along the vehicle height direction ( Figure 1 One end is connected to the driving part 10, and the other end is used to connect to the shock absorber 22. The driving part 10 can make a circumferential motion to drive the adjustment part 11 along the extension direction of the shock absorber 22 ( Figure 2 The elastic element 221 of the shock absorber 22 is compressed or stretched by the movement of the elastic element 221 (in the W direction). The elastic element 221 can be a spring made of steel with shock absorbing and shock absorbing functions, or a hydraulic spring, gas spring or metal rubber with damping function. In this embodiment, the most common spiral spring made of steel is selected.

[0054] In the prior art, the pressure exerted by the driving wheel on the ground is too small, the driving wheel's gripping ability is insufficient, and the friction generated is insufficient to carry the AGV through the boss, causing the driving wheel to "slip" on the spot. In addition, the spring tension in the shock-absorbing structure is large, and in the case of no load, the weight of the vehicle body itself is not enough to compress the spring, causing the vehicle body to be supported by the driving wheel.

[0055] When the shock absorber adjustment device provided by the present invention is used on an AGV, when the pressure of the wheel 21 on the ground is too small, causing the wheel 21 to "slip" on the spot, the adjustment part 11 is driven by the driving part 10 to move along the extension direction of the shock absorber 22, so that the elastic element 221 is compressed, and then the shock absorber 22 increases the pressure on the wheel 21 of the AGV; the pressure of the wheel 21 on the ground is increased, and the friction force is increased, thereby solving the problem of the wheel 21 "slipping" on the spot.

[0056] When the AGV is in an unloaded state, the weight of the vehicle body is not enough to compress the elastic element 221, causing the vehicle body to be supported by the wheel 21. The driving unit 10 drives the adjustment unit 11 to move along the extension direction of the shock absorber 22, so that the elastic element 221 is compressed, and then the shock absorber 22 increases the pressure on the wheel 21 of the AGV; the pressure of the wheel 21 on the ground is increased, solving the problem of the vehicle body being supported by the wheel 21.

[0057] When the AGV is loaded, in order to realize the shock absorbing function of the shock absorber 22, the driving unit 10 can drive the adjustment unit 11 to move along the extension direction of the shock absorber 22, so that the elastic element 221 is stretched, and then the shock absorber 22 reduces the pressure on the wheel 21 of the AGV; the shock absorber 22 performs the shock absorbing function.

[0058] It should be noted that the adjustment device of the present invention is installed on both sides of the guide vehicle 20 in the vehicle width direction, which can save the internal space of the guide vehicle 20 and will not interfere with the installation of internal components of the guide vehicle 20.

[0059] Specifically, refer to Figure 1 and Figure 2 The driving part 10 of this embodiment includes: a worm 100, on which are provided spiral teeth and a worm knob 103, and the worm 100 can move in a circumferential direction. The worm knob 103 can be manually rotated to make the worm 100 move in a circumferential direction, or it can be connected to an auxiliary driving device, such as a motor shaft of an auxiliary motor, as long as it can drive the worm 100 to move in a circumferential direction.

[0060] The adjusting part 11 includes: a gear, meshing with the helical teeth on the worm 100; and a body 114, the body 114 is used to connect with the shock absorber 22, and the part of the body 114 facing the gear is provided with a rack, and the rack meshes with the gear. The number of the gears, racks and helical teeth of the present invention is not limited, as long as the driving part 10 can drive the adjusting part 11 to move along the extension direction of the shock absorber 22.

[0061] For example, in this embodiment, reference Figure 2The helical teeth include: a first helical tooth 101 and a second helical tooth 102 arranged at intervals on the worm 100; the gear includes: a first gear 110 meshing with the first helical tooth 101, and a second gear 111 meshing with the second helical tooth 102. The portion of the body 114 facing the first gear 110 is provided with a first rack 112, and the first rack 112 meshes with the first gear 110; the portion of the body 114 facing the second gear 111 is provided with a second rack 113, and the second rack 113 meshes with the second gear 111. The rotation direction of the first helical tooth 101 and the second helical tooth 102 satisfies that after the worm 100 makes a circumferential motion, the movement directions of the first rack 112 and the second rack 113 are consistent.

[0062] In this embodiment, the first helical tooth 101 and the second helical tooth 102 have opposite rotation directions, and the first gear 110 and the second gear 111 are located on the same side of the worm 100. "The same side" can be understood as: taking the worm 100 as a reference, the first gear 110 and the second gear 111 are located on the upper side or the lower side of the central axis of the worm 100. Figure 2 1 shows that the first gear 110 and the second gear 111 are located on the lower side of the center axis of the worm 100 .

[0063] During use, the worm 100 is rotated to make a circumferential motion ( Figure 2 Driven by the worm 100, the first helical tooth 101 on the worm 100 drives the first gear 110 to rotate clockwise ( Figure 2 The second helical tooth 102 on the worm 100 drives the second gear 111 to rotate counterclockwise ( Figure 2 Then, the first gear 110 drives the first rack 112 to move downward ( Figure 2 The second gear 111 drives the second rack 113 to move downward (as shown in the direction C in the middle). Figure 2 Since the first rack 112 and the second rack 113 are respectively fixed on the body 114, when the first rack 112 and the second rack 113 move downward, the body 114 will also move downward ( Figure 2 (indicated by the direction C in the figure).

[0064] The body 114 is connected to the shock absorber 22 via a ball joint 220. When the body 114 moves downward, the body 114 compresses the shock absorber 22 downward via the ball joint 220, and then the shock absorber 22 pressurizes the wheel 21 of the AGV; the pressure of the wheel 21 on the ground increases, thereby increasing the friction.

[0065] In this embodiment, through the cooperation of the worm 100, the gear and the rack, the adjusting part 11 can be locked with the driving part 10 after the driving part 10 stops circumferential motion. Figure 2The driving part 10 drives the adjusting part 11 to move downward. After the driving part 10 stops the circumferential movement, the adjusting part 11 will not move upward, thereby ensuring the stability of the adjustment.

[0066] In other embodiments, a helical tooth may be processed or installed on the worm directly above the center of the adjusting part, and a rack located at the center of the adjusting part may be driven to move by a gear meshing with the helical tooth, thereby achieving the up and down movement of the main body in the adjusting part, thereby achieving the change of the pressure of the elastic element in the shock absorber.

[0067] In addition, in other embodiments, the first gear and the second gear may be located on different sides of the worm, such as the first gear is located on the upper side of the worm and the second gear is located on the lower side of the worm, as long as the worm can make circumferential motion and the movement directions of the first rack and the second rack are consistent through the transmission of the first gear and the second gear.

[0068] In addition, the specific structures of the adjustment unit 11 and the driving unit 10 are not limited to the above-mentioned forms. Figure 3 The driving part 10 includes: a ball screw having a lead screw; the adjusting part 11 includes: a nut sleeved on the lead screw, the circumferential motion of the lead screw can be converted into the linear motion of the nut; and a body 114 for adjusting the shock absorber 22 along the extension direction ( Figure 3 The body 114 moves in the direction W, and the body 114 is connected to the nut.

[0069] In this embodiment, the lead screw includes: a first lead screw 140 and a second lead screw 141 that are parallel to each other; the axial direction of the first lead screw 140 and the second lead screw 141 and the extension direction of the shock absorber 22 ( Figure 3 The first lead screw 140 and the second lead screw 141 are installed on the vehicle body through the support frame 104 and do not move in the axial direction. The support frame 104 is fixedly installed or welded on the guide vehicle 20, and the first lead screw 140 and the second lead screw 141 are both provided with a lead screw knob 142 for easy rotation. There is no restriction on the rotation method of the lead screw knob 142, which can be rotated manually or connected to an auxiliary driving device, such as connected to the motor shaft of an auxiliary motor, as long as it can drive the first lead screw 140 and the second lead screw 141 to move circumferentially.

[0070] The nut includes: a first nut 143 and a second nut 144. The first nut 143 is sleeved on the first lead screw 140, and the second nut 144 is sleeved on the second lead screw 141. The body 114 is connected to the first nut 143 and the second nut 144 respectively. The first nut 143 and the second nut 144 are fixedly installed or welded at both ends of the body 114.

[0071] During adjustment, the first screw 140 and the second screw 141 are rotated in the same direction and at the same speed. The circumferential motion of the first screw 140 and the second screw 141 is converted into the up and down linear motion of the first nut 143 and the second nut 144. Since the first nut 143 and the second nut 144 are fixedly arranged on the main body 114, the main body 114 realizes up and down linear reciprocating motion under the drive of the first screw 140 and the second screw 141, thereby realizing the change of the pressure of the elastic element 221 in the shock absorber 22.

[0072] It should be noted that the number of the lead screw and the nut of the present invention is not limited, as long as the driving unit 10 can drive the adjusting unit 11 to extend along the extension direction of the shock absorber 22 ( Figure 3 For example, a lead screw may be vertically installed on the vehicle body at the center of the main body 114, and a nut matched with the lead screw may be used to drive the main body 114 to move, thereby realizing the change of the pressure of the elastic element 221.

[0073] The shape of the body 114 of the present invention is not limited. Figure 4 Combined with Figures 1 to 3 As shown, the body 114 includes a bottom plate 116, a vertical plate 117 vertically arranged at the edge of the bottom plate 116, an end plate 118 arranged at both ends of the bottom plate 116 and the vertical plate 117, and a reinforcing rib 115 for enhancing the connection strength between the bottom plate 116 and the vertical plate 117. The bottom plate 116 is provided with a through hole 119 that can move up and down along the guide portion 120. The first rack 112 and the second rack 113 are respectively arranged on the end plates 118 located at both ends of the bottom plate 116 and the vertical plate 117.

[0074] The reinforcing ribs 115 can be welded on the bottom plate 116 and connected to the vertical plate 117. The number of reinforcing ribs 115 can be set at intervals according to the strength of the bottom plate 116 and the vertical plate 117. The manufacturing material and molding method of the body 114 are not limited. It can be an integrally formed sheet metal part or casting, or a welded part formed by welding multiple sheet metal parts, as long as it can meet the strength requirements and matching requirements of the support.

[0075] The guide portion 120 is arranged along a first direction ( Figure 4 The adjusting portion 11 is slidably mounted on the guide portion 120 through the through hole 119, and the movement direction of the adjusting portion 11 is consistent with the first direction. When the body 114 moves, the driving portion 10 drives the body 114 to move up and down along the guide portion 120 to ensure that the adjusting device works stably. The specific shape of the guide portion 120 is not limited. In this embodiment, the guide portion 120 is columnar. The number of guide portions 120 is not limited. In this embodiment, there are two guide portions 120 that are parallel to each other. In other embodiments, there may be more than two or other numbers.

[0076] Continue to refer Figure 4 Combined with Figures 1 to 3 As shown, the adjustment device further includes a fixing portion 13, which is used to be arranged on the side of the guide vehicle 20, and the guide portion 120 is fixed to the fixing portion 13. The fixing portion 13 can be fixedly installed or welded to the side A of the vehicle body. A reinforcing rib 130 is provided on the side of the fixing portion 13 facing away from the guide portion 120, and the number of the reinforcing rib 130 can be arranged in multiple intervals according to the strength of the fixing portion 13.

[0077] Continue to refer Figure 1 Combined with Figure 5 As shown, the present invention further provides a guided vehicle 20, comprising: a vehicle body, wheels 21, shock absorbers 22, mounting portions 231, and the adjusting device described in any of the above embodiments, wherein the wheels 21 are mounted on two side surfaces A of the vehicle body in the vehicle width direction X through the mounting portions 231, and the number of wheels 21 may be an even number, such as four or six, or an odd number, such as three. In this embodiment, one end of the shock absorber 22 is connected to the adjusting portion 11, and the other end is connected to the mounting portion 231.

[0078] The mounting portion 231 is disposed at the bottom of the vehicle body and is rotatably connected to the vehicle body through a connecting plate 234 and a rotating shaft 233. The connecting plate 234 is integrally formed with the vehicle body, or can be fixedly installed or welded to the vehicle body. The mounting portion can be a sheet metal structure formed by integral bending or welding, or an assembled structure of sheet metal parts. Figure 5 The mounting portion 231 includes a mounting plate 230 for mounting the motor 24 and a motor holding plate 232 for holding the motor 24. The output shaft 240 of the motor 24 is connected to the wheel 21. The motor holding plates 232 are a pair of parallel arrangements, and are connected to the connecting plates 234 through the rotating shafts 233, respectively.

[0079] The wheel 21 in this embodiment can be a driving wheel or a wheel other than the driving wheel. The adjusting device described in any of the above embodiments can be installed on both sides of the vehicle body at the same time, or can be installed on one side of the vehicle body.

[0080] When the pressure of the wheel 21 on the ground is too small, the wheel 21 has insufficient grip, and the friction generated is insufficient to move the AGV, causing the wheel 21 to "slip" in place, the drive unit 10 can drive the adjustment unit 11 to move along the extension direction W of the shock absorber 22, so that the elastic element 221 is compressed, increasing the pressure and friction of the wheel 21 on the ground, thereby solving the problem of the wheel 21 "slipping" in place. In order to prevent the elastic element 221 from returning to its original state after adjustment, the adjustment unit 11 can be locked with the drive unit 10 after the drive unit 10 stops circumferential movement.

[0081] When the AGV is in an empty load state, the weight of the vehicle body is insufficient to compress the elastic element 221, causing the vehicle body to be propped up. At this time, the driving unit 10 can drive the adjustment unit 11 to move along the extension direction W of the shock absorber 22, so that the elastic element 221 is compressed, and then the shock absorber 22 increases the pressure on the wheel 21 of the AGV; the pressure of the wheel 21 on the ground increases, solving the problem of the vehicle body 20 being propped up.

[0082] When the AGV is loaded, in order to better realize the shock absorbing function of the shock absorber 22, the driving unit 10 can drive the adjustment unit 11 to move along the extension direction of the shock absorber 22, so that the elastic element 221 is stretched, and then the shock absorber 22 reduces the pressure on the wheel 21 of the AGV; the shock absorber 22 performs the shock absorbing function.

[0083] In summary, the above embodiments provided by the present invention are only illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. An adjustment device for a shock absorber of a guide vehicle, characterized in that: The adjusting device is installed on at least one of the two side surfaces of the guided vehicle in the vehicle width direction or the vehicle length direction, and the adjusting device includes: A driving unit, used to be arranged on the side of the guide vehicle; An adjusting part, one end of which is connected to the driving part in the vehicle height direction, and the other end is used to be connected to the shock absorber, and the driving part can make a circumferential motion to drive the adjusting part to move along the extension direction of the shock absorber, so that the elastic element of the shock absorber is compressed or stretched; When the guide vehicle is unloaded, the elastic element is compressed so that the shock absorber pressurizes the wheels of the guide vehicle; When the guide vehicle is under load, the elastic element is stretched so that the shock absorber decompresses the wheels of the guide vehicle; It also includes a guide portion extending along a first direction, the adjustment portion having a through hole, the adjustment portion being slidably sleeved on the guide portion through the through hole, and the movement direction of the adjustment portion being consistent with the first direction; there are two or more guide portions, which are parallel to each other; It also includes a fixing part, the fixing part is used to be arranged on the side of the guide vehicle, and the guide part is fixed to the fixing part; It also includes a reinforcing rib, which is arranged on the side of the fixing part facing away from the guiding part; the reinforcing ribs are multiple and arranged at intervals; and the other end of the adjusting part is connected to the shock absorber through a ball joint.

2. The adjusting device according to claim 1, characterized in that: The adjusting portion can be locked with the driving portion after the driving portion stops circumferential movement.

3. The adjusting device according to claim 2, characterized in that: The driving unit comprises: A worm, wherein the worm is provided with helical teeth and is capable of circumferential motion; The adjustment unit comprises: a gear meshing with the helical teeth; A main body is used to connect with the shock absorber, and a rack is provided on the part of the main body facing the gear, and the rack is meshed with the gear.

4. The adjusting device according to claim 3, characterized in that: The helical teeth include: first helical teeth and second helical teeth arranged on the worm at intervals; The gear comprises: a first gear meshing with the first helical tooth; a second gear meshing with the second helical tooth; The rack comprises: A first rack, disposed at a portion of the body facing the first gear and meshing with the first gear; A second rack, disposed on a portion of the body facing the second gear and meshing with the second gear; The rotation directions of the first helical teeth and the second helical teeth satisfy that after the worm makes a circumferential motion, the movement directions of the first rack and the second rack are consistent.

5. The adjusting device according to claim 4, characterized in that: The first helical teeth and the second helical teeth have opposite rotation directions, and the first gear and the second gear are located on the same side of the worm.

6. The adjusting device according to claim 2, characterized in that: The driving unit includes: a ball screw having a lead screw; The adjustment unit comprises: A nut is sleeved on the lead screw, and the circumferential motion of the lead screw can be converted into the linear motion of the nut; The body is used to move along the extension direction of the shock absorber, and the body is connected to the nut.

7. The adjusting device according to claim 6, characterized in that: The lead screw comprises: a first lead screw and a second lead screw parallel to each other; The nut comprises: A first nut, sleeved on the first lead screw; A second nut, sleeved on the second lead screw; The body is connected to the first nut and the second nut respectively.

8. A guided vehicle, characterized in that: include: Vehicle body; Wheels are arranged on two side surfaces of the vehicle body in the vehicle width direction or the vehicle length direction, and at least one of the two side surfaces is installed with the adjustment device according to any one of claims 1 to 7; A shock absorber, one end of which is connected to the adjusting part, and the other end of which is connected to the wheel.

9. The guided vehicle according to claim 8, characterized in that: It also includes a mounting portion, which is disposed at the bottom of the vehicle body and is rotatably connected to the vehicle body; The mounting portion is provided with a motor, and the output shaft of the motor is connected to the wheel; One end of the shock absorber is connected to the adjusting part, and the other end is connected to the mounting part.

10. The guided vehicle according to claim 8, characterized in that: The wheels are driving wheels.

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