CN215155012U

CN215155012U - Chassis for automatic guided vehicle and automatic guided vehicle

Info

Publication number: CN215155012U
Application number: CN202120354586.7U
Authority: CN
Inventors: 黄宗勇
Original assignee: Shenzhen Youibot Robotics Technology Co ltd
Current assignee: Shenzhen Youibot Robotics Technology Co ltd
Priority date: 2021-02-08
Filing date: 2021-02-08
Publication date: 2021-12-14
Anticipated expiration: 2031-02-08

Abstract

The utility model is suitable for the technical field of robots, and discloses a chassis for an automatic guided vehicle and the automatic guided vehicle, wherein the chassis comprises a bottom plate, a driving mechanism, a driving wheel, a driven wheel and a suspension mechanism, the driven wheel is rotationally connected with the bottom plate, and the driving mechanism is arranged on the bottom plate and is in transmission connection with the driving wheel; the suspension mechanism comprises a connecting rod member, a rotating connection assembly, an elastic connection assembly and a guiding limit support, the guiding limit support is provided with a guiding limit groove, the connecting rod member comprises a first end part which is arranged on one side of the driving wheel and is connected with the bottom plate through the rotating connection assembly, a second end part which is arranged on the other side of the driving wheel and is arranged in the guiding limit groove in a liftable penetrating mode, a first connection part which is arranged between the first end part and the second end part and stretches over the driving mechanism, and a second connection part which is arranged between the second end part and the first connection part and is elastically connected with the bottom plate through the elastic connection assembly in a liftable mode. The utility model provides a chassis removes more steadily and is difficult for the horizontal hunting.

Description

Chassis for automatic guided vehicle and automatic guided vehicle

Technical Field

The utility model relates to the technical field of robot, especially, relate to a chassis and automated guided vehicle for automated guided vehicle.

Background

With the continuous development of society, robots are widely applied to various fields such as civil affairs, military affairs and industrial production, and particularly, service robots are widely concerned by people as a new direction of the robot field. Among them, wheeled mobile robot is more suitable for the demand of service robot because of its speed and stability's advantage under indoor environment, but, in some occasions that operational environment is relatively poor, when for example ground has a slope or little barrier, the chassis appears unstable state and even takes place the horizontal hunting to can not provide a safe, stable state of marcing.

SUMMERY OF THE UTILITY MODEL

A first object of the present invention is to provide a chassis for an automated guided vehicle, which is stable in movement and not easy to swing left and right.

In order to achieve the above purpose, the utility model provides a scheme is: a chassis for an automatic guided vehicle comprises a bottom plate, a driving mechanism, a driving wheel, a driven wheel and a suspension mechanism, wherein the driven wheel is rotatably connected with the bottom plate, and the driving mechanism is arranged on the bottom plate and is in transmission connection with the driving wheel;

the suspension mechanism comprises a connecting rod member, a rotating connection assembly, an elastic connection assembly and a guiding limit support, the guiding limit support is provided with a guiding limit groove, the connecting rod member comprises a guide wheel one side and a guide rod passing through the rotating connection assembly is rotatably connected with a first end part of the bottom plate and is arranged on the other side of the guide wheel and is arranged in the guiding limit groove in a liftable and lowerable manner, and the guide rod member is arranged at the second end part of the guiding limit groove and is arranged at the first end part and the second end part between the first end part and the second end part in a spanning connection mode.

Furthermore, the guide limiting support comprises a first limiting plate, a second limiting plate and a third limiting plate, the first limiting plate and the second limiting plate are installed on the bottom plate and are oppositely arranged at intervals along the direction parallel to the axial direction of the driving wheel, the third limiting plate is arranged above the bottom plate at intervals and is connected between the first limiting plate and the second limiting plate, and the first limiting plate, the second limiting plate and the third limiting plate are enclosed to form the guide limiting groove.

Further, the connecting rod member comprises a connecting rod and a rolling part rotatably mounted at one end of the connecting rod, the end part of the connecting rod, which is far away from the rolling part, forms the first end part, the end part of the connecting rod, which is close to the rolling part, and the rolling part form the second end part, the connecting rod is provided with the first connecting part and the second connecting part, the outer side wall of the rolling part is abutted against the two inner side walls of the guide limiting groove, and a space is formed between the end part of the connecting rod, which is close to the rolling part, and the two inner side walls of the guide limiting groove.

Further, the rolling part is a bearing or a roller.

Further, the link member includes a link, one end of the link constitutes the first end portion, the other end constitutes the second end portion, the link is formed with the first connecting portion and the second connecting portion, and an end portion of the link penetrating the guide limiting groove performs a lifting motion along two inner sidewalls of the guide limiting groove.

Furthermore, guide rails are arranged on the two inner side walls of the guide limiting groove, a sliding block matched with the guide rails is arranged at the end part of the connecting rod penetrating through the guide limiting groove, and the end part of the connecting rod penetrating through the guide limiting groove slides along the two inner side walls of the guide limiting groove through the matching of the sliding block and the guide rails.

Further, first end is along being on a parallel with the axial direction of drive wheel is run through and is equipped with first through-hole, it includes axis of rotation and support frame to rotate coupling assembling, the support frame install in on the bottom plate, the axis of rotation is worn to locate first through-hole just the both ends of axis of rotation connect respectively in on the support frame.

Further, the second connecting portion are equipped with the orientation the bottom plate runs through the second through-hole that sets up, elastic connection assembly includes fixed block, direction gag lever post and at least one spring, the fixed block is located on the bottom plate, the direction gag lever post include one end with the body of rod and the protruding locating that the fixed block is connected the spacing boss of the other end of the body of rod, the part of the body of rod is worn to locate in the second through-hole, the second connecting portion with between the spacing boss and/or the second connecting portion with be equipped with between the fixed block the spring, the periphery at the body of rod is established to the spring housing.

Further, the second connecting portion are equipped with the orientation the bottom plate runs through the second through-hole that sets up, elastic connection assembly includes direction gag lever post and at least one spring, the direction gag lever post include one end with the body of rod and the protruding locating that the bottom plate is connected the spacing boss of the body of rod other end, the part of the body of rod is worn to locate in the second through-hole, the second connecting portion with between the spacing boss and/or the second connecting portion with be equipped with between the bottom plate the spring, the periphery at the body of rod is established to the spring housing.

Further, the driving mechanism comprises a driving motor and a speed reduction transmission assembly in transmission connection between the driving motor and the driving wheel, and the first connecting portion is fixedly connected with the speed reduction transmission assembly.

Furthermore, the speed reduction transmission assembly comprises a shell, a transmission part and an output shaft, the transmission part is arranged in the shell and is in transmission connection between the driving motor and the output shaft, one end of the output shaft penetrates through the shell and is connected with the transmission part, the other end of the output shaft extends out of the shell and is connected with the driving wheel, and the first connecting part is fixedly connected with the shell.

Furthermore, the number of the driving mechanisms and the number of the driving wheels are two, the number of the driven wheels is four, the two driving wheels are symmetrically arranged on two opposite sides of the bottom plate respectively, the four driven wheels are symmetrically arranged on two opposite sides of the bottom plate respectively in pairs, the two driven wheels located on the same side of the bottom plate are symmetrically arranged on two opposite sides of the driving wheels, and one driving mechanism is correspondingly connected with one driving wheel in a transmission manner.

A second object of the present invention is to provide an automatic guided vehicle, the present invention provides a scheme: an automatic guided vehicle comprises a battery module, a controller and the chassis for the automatic guided vehicle, wherein the battery module and the controller are respectively installed on a bottom plate, and the controller is respectively electrically connected with the battery module and the driving mechanism.

The utility model provides a chassis for an automatic guided vehicle, which is provided with a driving mechanism for providing power for a driving wheel to rotate so as to drive the chassis to move; by arranging the suspension mechanism, when the ground has an obstacle, the driving wheel can be lifted, the height of the chassis is kept unchanged, and the driving wheel can be prevented from swinging left and right, so that the chassis is safer and more reliable, and the motion is more stable; the driving mechanism, the driving wheel, the driven wheel and the suspension mechanism are favorably arranged on the bottom plate by arranging the bottom plate; by arranging the elastic connecting assembly, when the ground is uneven, the second connecting part can perform elastic lifting motion relative to the bottom plate through the elastic connecting assembly; by arranging the rotating connecting assembly, when the second connecting part performs elastic lifting motion relative to the bottom plate, the first end part rotates relative to the bottom plate; the first connecting part is connected with the driving mechanism in a crossing manner, and the driving wheel is in transmission connection with the driving mechanism, so that the connection between the driving wheel and the connecting rod member is realized, and therefore, when an obstacle exists, the connecting rod member lifts the driving wheel through relative rotation and relative elastic lifting motion with the bottom plate, so that the height of the bottom plate is kept unchanged, and the stability of the chassis is ensured; through setting up the spacing support of direction, the second end portion is worn to locate the direction spacing inslot with liftable to play the guide effect to the motion of connecting rod member when not influencing the elevating movement of connecting rod member, prevent that the drive wheel from carrying out the horizontal hunting. Therefore, the utility model provides a chassis for automated guided vehicle removes more steadily and is difficult for the horizontal hunting.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an angle of a chassis according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a schematic structural diagram of another angle of the chassis according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a link member according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a guiding and limiting bracket according to an embodiment of the present invention;

fig. 6 is an exploded view of a chassis according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a reduction transmission assembly according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a chassis according to a second embodiment of the present invention.

The reference numbers illustrate: 100. a chassis; 1. a base plate; 11. avoiding holes; 2. a drive mechanism; 21. a drive motor; 22. a speed reduction transmission assembly; 221. a housing; 222. an output shaft; 223. a fixed flange; 3. a drive wheel; 4. a driven wheel; 5. a suspension mechanism; 51. a link member; 511. a connecting rod; 5111. a first end portion; 5112. a second end portion; 5113. a first connection portion; 5114. a second connecting portion; 5115. a first through hole; 5116. a second through hole; 5117. a third through hole; 512. a rolling member; 52. rotating the connecting assembly; 521. A rotating shaft; 522. a support frame; 53. an elastic connection assembly; 531. a fixed block; 532. guiding a limiting rod; 5321. a main rod body; 5322. a limiting boss; 533. a spring; 54. a guide limit bracket; 540. a guide limit groove; 541. a first limit plate; 542. a second limiting plate; 543. and a third limiting plate.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture, if the specific posture is changed, the directional indicator is changed accordingly.

It will also be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1 to 4, a chassis 100 for an automatic guided vehicle according to an embodiment of the present invention includes a bottom plate 1, a driving mechanism 2, a driving wheel 3, a driven wheel 4 and a suspension mechanism 5, wherein the driven wheel 4 is rotatably connected to the bottom plate 1, and the driving mechanism 2 is mounted on the bottom plate 1 and is in transmission connection with the driving wheel 3; the suspension mechanism 5 comprises a connecting rod member 51, a rotating connection assembly 52, an elastic connection assembly 53 and a guiding limit bracket 54, wherein the guiding limit bracket 54 is provided with a guiding limit groove 540, the connecting rod member 51 comprises a first end part 5111 which is arranged on one side of the driving wheel 3 and is rotatably connected with the bottom plate 1 through the rotating connection assembly 52, a second end part 5112 which is arranged on the other side of the driving wheel 3 and is liftably arranged in the guiding limit groove 540 in a penetrating manner, a first connection part 5113 which is arranged between the first end part 5111 and the second end part 5112 and spans the driving mechanism 2, and a second connection part 5114 which is arranged between the second end part 5112 and the first connection part 5113 and is liftably and elastically connected with the bottom plate 1 through the elastic connection assembly 53. The driving mechanism 2 is arranged for providing power for the driving wheel 3 to rotate so as to drive the chassis 100 to move; by arranging the suspension mechanism 5, when the ground has an obstacle, the driving wheel 3 can be lifted, the height of the chassis 100 is kept unchanged, and the driving wheel 3 can be prevented from swinging left and right, so that the chassis 100 is safer and more reliable, and the motion is more stable; by arranging the bottom plate 1, the driving mechanism 2, the driving wheel 3, the driven wheel 4 and the suspension mechanism 5 are favorably arranged on the bottom plate 1; by providing the elastic connection assembly 53, when the ground is uneven, the second connection part 5114 can perform elastic lifting movement relative to the base plate 1 through the elastic connection assembly 53; by providing the rotation connection assembly 52, when the second connection portion 5114 performs elastic lifting movement with respect to the base plate 1, the first end portion 5111 rotates with respect to the base plate 1; the first connecting part 5113 is connected with the driving mechanism 2 in a crossing manner, the driving wheel 3 is in transmission connection with the driving mechanism 2, and the connection between the driving wheel 3 and the connecting rod member 51 is realized, so that when an obstacle exists, the connecting rod member 51 lifts the driving wheel 3 through relative rotation and relative elastic lifting movement with the bottom plate 1, the height of the bottom plate 1 is kept unchanged, and the stability of the chassis 100 is ensured; by providing the guide limit bracket 54, the second end 5112 is disposed in the guide limit groove 540 in a liftable and lowerable manner, so that the movement of the link member 51 is guided without affecting the lifting movement of the link member 51, and the driving wheel 3 is prevented from swinging left and right. Therefore, the chassis 100 for the automated guided vehicle provided by the present invention moves more stably and is less prone to horizontal swing.

Preferably, the base plate 1 is provided with a relief hole 11, and the driving wheel 3 is accommodated in the relief hole 11. It is understood that in other embodiments, no relief holes 11 may be provided.

Referring to fig. 1 and 5, the guiding limiting bracket 54 includes a first limiting plate 541, a second limiting plate 542 and a third limiting plate 543, the first limiting plate 541 and the second limiting plate 542 are both installed on the bottom plate 1 and are oppositely disposed at intervals along a direction parallel to the axial direction of the driving wheel 3, the third limiting plate 543 is disposed above the bottom plate 1 at intervals and connected between the first limiting plate 541 and the second limiting plate 542, and the first limiting plate 541, the second limiting plate 542 and the third limiting plate 543 surround to form a guiding limiting groove 540. It is understood that, in other embodiments, when the first and

second restriction plates

541 and 542 are sufficiently high, it is possible to provide no third restriction plate 543. In this embodiment, by providing the third limiting plate 543, the stability of the first limiting plate 541 and the second limiting plate 542 is improved, and the guiding and limiting effect on the second end 5112 is improved.

Preferably, the link member 51 includes a link 511 and a rolling member 512 rotatably mounted at one end of the link 511, an end of the link 511 remote from the rolling member 512 constitutes a first end 5111, an end of the link 511 close to the rolling member 512 and the rolling member 512 constitute a second end 5112, the link 511 is formed with a first connection portion 5113 and a second connection portion 5114, an outer side wall of the rolling member 512 abuts against opposite inner side walls of the guide limiting groove 540, and a space is provided between the end of the link 511 close to the rolling member 512 and the opposite inner side walls of the guide limiting groove 540. By providing the rolling member 512, when the second end 5112 moves up and down with respect to the base plate 1, the friction between the second end 5112 and the guide limit bracket 54 is reduced.

Preferably, the rolling members 512 are bearings. Of course, as another alternative embodiment, it is also possible that the rolling member 512 is a roller.

As another embodiment, the link member 51 includes a link 511, one end of the link 511 is configured as a first end 5111, and the other end thereof is configured as a second end 5112, and the link 511 is formed with a first connection portion 5113 and a second connection portion 5114, and the ends of the link 511 inserted into the guide-limiting groove 540 perform an ascending and descending motion along the inner sidewalls of the guide-limiting groove 540. Preferably, the two inner sidewalls of the guiding-limiting groove 540 are provided with guide rails (not shown), the end of the connecting rod 511 penetrating through the guiding-limiting groove 540 is provided with a sliding block (not shown) engaged with the guide rails, and the end of the connecting rod 511 penetrating through the guiding-limiting groove 540 slides along the two inner sidewalls of the guiding-limiting groove 540 through the engagement of the sliding block and the guide rails. It is understood that, in other embodiments, the sliding block and the guide rail are not provided, and the end of the connecting rod 511 penetrating the guide-limiting groove 540 may abut against two inner sidewalls of the guide-limiting groove 540.

Referring to fig. 1, 4 and 6, the first end portion 5111 is provided with a first through hole 5115 extending through in a direction parallel to the axial direction of the driving wheel 3, the rotating connection assembly 52 includes a rotating shaft 521 and a supporting frame 522, the supporting frame 522 is mounted on the bottom plate 1, the rotating shaft 521 is disposed through the first through hole 5115, and two ends of the rotating shaft 521 are respectively connected to the supporting frame 522. It is understood that in other embodiments, the rotational connection assembly 52 includes other components, and it is also possible to have the first end 5111 and the base plate 1 be hingedly connected.

Referring to fig. 1, 2, 4 and 6 again, the second connecting portion 5114 is provided with a second through hole 5116 penetrating toward the bottom plate 1, the elastic connection assembly 53 includes a fixing block 531, a guiding limiting rod 532 and a spring 533, the fixing block 531 is disposed on the bottom plate 1, the guiding limiting rod 532 includes a main rod 5321 having one end connected to the fixing block 531 and a limiting boss 5322 protruding from the other end of the main rod 5321, a part of the main rod 5321 penetrates the second through hole 5116, and the spring 533 is sleeved on the periphery of the main rod 5321; one spring 533 is disposed between the second connecting portion 5114 and the limiting boss 5322, that is, one end of the spring 533 abuts against the second connecting portion 5114, and the other end abuts against the limiting boss 5322. It is understood that, as another embodiment, one spring 533 is provided and is disposed between the second connecting portion 5114 and the fixing block 531, that is, one end of the spring 533 abuts against the second connecting portion 5114, and the other end abuts against the fixing block 531; alternatively, two springs 533 may be provided, one of the springs is disposed between the second connecting portion 5114 and the limiting boss 5322, and the other is disposed between the second connecting portion 5114 and the fixing block 531, that is, one end of one spring 533 abuts against the second connecting portion 5114, and the other end abuts against the limiting boss 5322, and one end of the other spring 533 abuts against the second connecting portion 5114, and the other end abuts against the fixing block 531.

Referring to fig. 1, 4, 6 and 7, the driving mechanism 2 includes a driving motor 21 and a speed reduction assembly 22 drivingly connected between the driving motor 21 and the driving wheel 3, and the first connecting portion 5113 is fixedly connected to the speed reduction assembly 22. The arrangement of the reduction transmission assembly 22 can adjust the rotating speed output by the driving motor 21 to a proper rotating speed and transmit the rotating speed to the driving wheel 3, so that the moving speed of the driving wheel 3 is not too fast or too slow; on the other hand, the transmission direction of the variable force may be changed so that the output shaft 222 of the drive motor 21 does not necessarily have to be coaxial with the drive shaft of the drive wheel 3.

Preferably, the reduction transmission assembly 22 includes a housing 221, a transmission member (not shown) and an output shaft 222, the transmission member is disposed in the housing 221 and is connected between the driving motor 21 and the output shaft 222 in a transmission manner, one end of the output shaft 222 is disposed in the housing 221 in a penetrating manner and is connected with the transmission member, the other end of the output shaft extends out of the housing 221 and is connected with the driving wheel 3, and the second connecting portion 5114 is fixedly connected with the housing 221. In this embodiment, the first connecting portion 5113 is provided with a third through hole 5117 extending in a direction parallel to the axial direction of the driving wheel 3, the housing 221 is provided with a fixing flange 223, and the reduction transmission assembly 22 is fixedly connected to the second connecting portion 5114 through the fixing flange 223.

Referring to fig. 1 and 3, the number of the driving mechanisms 2, the driving wheels 3 and the avoiding holes 11 is two, four driven wheels 4 are provided, the two driving wheels 3 are respectively symmetrically arranged on two opposite sides of the bottom plate 1, the four driven wheels 4 are respectively symmetrically arranged on two opposite sides of the bottom plate 1 in pairs, the two driven wheels 4 located on the same side of the bottom plate 1 are symmetrically arranged on two opposite sides of the driving wheels 3, one driving mechanism 2 is correspondingly connected with one driving wheel 3 in a transmission manner, and one driving wheel 3 is accommodated in one avoiding hole 11. One driving mechanism 2 is correspondingly connected with one driving wheel 3 in a transmission mode, so that flexible control over each driving wheel 3 is achieved, for example, one driving wheel 3 can be controlled to move forwards while the other driving wheel 3 can be controlled to move backwards, and steering is achieved. Of course, in other embodiments, it is also possible for two drive wheels 3 to correspond to one drive mechanism 2. In addition, the number of the driving wheels 3 and the driven wheels 4 is not limited to the embodiment and the drawings, and the number of the driving wheels 3 may be one or three or four or five, and the like, and the number of the driven wheels 4 may be two or three or five or six, and the like.

The embodiment of the utility model provides an automatic guided vehicle (not shown) is still provided, including battery module (not shown), controller (not shown) and the above-mentioned chassis 100 that is used for automatic guided vehicle, battery module and controller are installed respectively on bottom plate 1, and the controller respectively with battery module and 2 electric connection of actuating mechanism. By adopting the chassis 100, the automatic guided vehicle can move more stably and is not easy to swing left and right.

Example two:

referring to fig. 1 and fig. 8, the chassis 100 for the automated guided vehicle according to the first embodiment is different from the chassis 100 according to the first embodiment mainly in that the structure of the elastic connection assembly 53 is different, and specifically, the structure is as follows: in the first embodiment, the elastic connection assembly 53 includes a fixing block 531, a guide limiting rod 532, and a spring 533; in this embodiment, the elastic connection assembly 53 includes a guide limiting rod 532 and a spring 533, and no fixing block is disposed.

Referring to fig. 2, 6 and 8, the guiding limiting rod 532 includes a main rod 5321 having one end connected to the bottom plate 1 and a limiting boss 5322 protruding from the other end of the main rod 5321, the main rod 5321 partially penetrates the second through hole 5116, and the spring 533 is sleeved on the periphery of the main rod 5321; one spring 533 is disposed between the second connecting portion 5114 and the limiting boss 5322, that is, one end of the spring 533 abuts against the second connecting portion 5114, and the other end abuts against the limiting boss 5322. It is understood that, as another embodiment, one spring 533 is provided and is disposed between the second connecting portion 5114 and the bottom plate 1, and it is also possible that one end of the spring 533 abuts against the second connecting portion 5114 and the other end abuts against the bottom plate 1; alternatively, two springs 533 may be provided, one of the springs is disposed between the second connecting portion 5114 and the limiting boss 5322, and the other is disposed between the second connecting portion 5114 and the bottom plate 1, that is, one end of one spring 533 abuts against the second connecting portion 5114, and the other end abuts against the limiting boss 5322, and one end of the other spring 533 abuts against the second connecting portion 5114, and the other end abuts against the bottom plate 1.

In addition to the above differences, other structures of the chassis 100 for the automated guided vehicle provided in the present embodiment can be optimized with reference to the first embodiment, and will not be described in detail herein.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. A chassis for an automatic guided vehicle is characterized by comprising a bottom plate, a driving mechanism, a driving wheel, a driven wheel and a suspension mechanism, wherein the driven wheel is rotatably connected with the bottom plate, and the driving mechanism is arranged on the bottom plate and is in transmission connection with the driving wheel;

2. The chassis for the automated guided vehicle of claim 1, wherein the guiding and limiting bracket comprises a first limiting plate, a second limiting plate and a third limiting plate, the first limiting plate and the second limiting plate are both mounted on the bottom plate and are oppositely arranged at intervals along a direction parallel to an axial direction of the driving wheel, the third limiting plate is arranged above the bottom plate at intervals and is connected between the first limiting plate and the second limiting plate, and the first limiting plate, the second limiting plate and the third limiting plate enclose to form the guiding and limiting groove.

3. The chassis for an automated guided vehicle according to claim 1 or 2, wherein the link member includes a link and a rolling member rotatably mounted at one end of the link, an end of the link remote from the rolling member constitutes the first end portion, an end of the link close to the rolling member and the rolling member constitute the second end portion, the link is formed with the first connecting portion and the second connecting portion, an outer side wall of the rolling member abuts against the opposite inner side walls of the guide limit groove, and a space is provided between the end of the link close to the rolling member and the opposite inner side walls of the guide limit groove.

4. The chassis for automated guided vehicle of claim 3, wherein the rolling elements are bearings or rollers.

5. The chassis for an automated guided vehicle according to claim 1 or 2, wherein the link member includes a link, one end of the link is configured as the first end portion, the other end thereof is configured as the second end portion, and the link is formed with the first connecting portion and the second connecting portion, and an end portion of the link penetrating the guide limiting groove performs a lifting motion along both inner side walls of the guide limiting groove.

6. The chassis for an automated guided vehicle according to claim 5, wherein the two inner sidewalls of the guide limiting groove are provided with guide rails, the end of the connecting rod penetrating the guide limiting groove is provided with a sliding block engaged with the guide rails, and the end of the connecting rod penetrating the guide limiting groove slides along the two inner sidewalls of the guide limiting groove by the engagement of the sliding block and the guide rails.

7. The chassis for the automated guided vehicle according to claim 1 or 2, wherein the first end has a first through hole extending therethrough along a direction parallel to an axial direction of the driving wheel, the rotation connecting assembly includes a rotating shaft and a supporting frame, the supporting frame is mounted on the bottom plate, the rotating shaft is inserted through the first through hole, and two ends of the rotating shaft are respectively connected to the supporting frame.

8. The chassis for the automatic guided vehicle according to claim 1 or 2, wherein the second connecting portion is provided with a second through hole penetrating toward the bottom plate, the elastic connection assembly includes a fixing block, a guiding limiting rod and at least one spring, the fixing block is disposed on the bottom plate, the guiding limiting rod includes a main rod body having one end connected to the fixing block and a limiting boss protruding from the other end of the main rod body, a part of the main rod body is disposed in the second through hole, the spring is disposed between the second connecting portion and the limiting boss and/or between the second connecting portion and the fixing block, and the spring is sleeved on the periphery of the main rod body.

9. The chassis for the automated guided vehicle according to claim 1 or 2, wherein the second connecting portion is provided with a second through hole penetrating toward the bottom plate, the elastic connection assembly comprises a guiding limiting rod and at least one spring, the guiding limiting rod comprises a main rod body with one end connected with the bottom plate and a limiting boss protruding from the other end of the main rod body, a part of the main rod body penetrates through the second through hole, the spring is provided between the second connecting portion and the limiting boss and/or between the second connecting portion and the bottom plate, and the spring is sleeved on the periphery of the main rod body.

10. The chassis for the automated guided vehicle of claim 1 or 2, wherein the driving mechanism comprises a driving motor and a reduction transmission assembly in transmission connection between the driving motor and the driving wheel, and the first connecting portion is fixedly connected with the reduction transmission assembly.

11. The chassis for an automated guided vehicle of claim 10, wherein the reduction transmission assembly comprises a housing, a transmission member and an output shaft, the transmission member is disposed in the housing and is drivingly connected between the driving motor and the output shaft, one end of the output shaft is disposed in the housing and is connected to the transmission member, the other end of the output shaft extends out of the housing and is connected to the driving wheel, and the first connecting portion is fixedly connected to the housing.

12. The chassis for the automated guided vehicle of claim 1, wherein the number of the driving mechanism and the driving wheels is two, the number of the driven wheels is four, the two driving wheels are symmetrically disposed on two opposite sides of the bottom plate, the four driven wheels are symmetrically disposed on two opposite sides of the bottom plate, the two driven wheels located on the same side of the bottom plate are symmetrically disposed on two opposite sides of the driving wheels, and one driving mechanism is correspondingly connected to one driving wheel in a transmission manner.

13. An automated guided vehicle, comprising a battery module, a controller and the chassis for an automated guided vehicle according to any one of claims 1 to 12, wherein the battery module and the controller are respectively mounted on the bottom plate, and the controller is respectively electrically connected with the battery module and the driving mechanism.