Lifting device and automatic guided vehicle

Abstract

The utility model is suitable for the technical field of automatic guided vehicles, and discloses a lifting device and an automatic guided vehicle, the lifting device is applied to the automatic guided vehicle, the lifting device comprises a guide seat, a transmission part and a follow-up part, the guide seat is installed on a vehicle body of the automatic guided vehicle, and the transmission part is connected to the guide seat; the transmission part is used for moving relative to the guide seat under the action of external force; the follow-up part is connected to the transmission part and is driven by the transmission part to move so as to push the mounting plate body of the automatic guided vehicle to rotate relative to the vehicle body in the direction away from the supporting face, and the moving wheel assembly of the automatic guided vehicle is lifted away from the supporting face. According to the lifting device, when the automatic guided vehicle stops working, the moving wheel assembly can be lifted away from the supporting face, the automatic guided vehicle can be conveniently and manually pushed away, and the carrying difficulty of the automatic guided vehicle is reduced.

Description

Technical Field

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

[0002] Automated Guided Vehicles (AGVs) are often used in combination with different functional mechanisms to form different robots. AGVs are mainly used to provide driving traction for the robot's walking.

[0003] It is understood that in some application scenarios, the automated guided vehicle needs to be moved. For example, in the project implementation scenario, the automated guided vehicle needs to be moved to the workplace; in the maintenance scenario, the automated guided vehicle with faults such as power failure and demagnetization needs to be moved away for maintenance. However, when the automated guided vehicle stops working, the moving wheels in the moving wheel assembly are in a brake state, and the automated guided vehicle cannot be pushed manually.

[0004] In the related art, a reduction motor is used on the automatic guided vehicle to lift the moving wheel (such as the steering wheel) off the ground, so that the automatic guided vehicle can be pushed manually. However, this solution can only be executed when the automatic guided vehicle is in a powered state. However, when the automatic guided vehicle fails, it is often in a power-off state or an inoperable state, and the electric lifting solution cannot be executed. In addition, the automatic guided vehicle is in a battery-free state or a stopped operating state, and the electric lifting solution cannot be executed. All of the above will make it difficult to transport the automatic guided vehicle. Utility Model Content

[0005] The first object of the present application is to provide a lifting device, which is intended to solve the technical problem of difficulty in carrying an automatic guided vehicle when it stops working.

[0006] To achieve the above objectives, the solution provided by this application is:

[0007] A lifting device is applied to an automatic guided vehicle, the automatic guided vehicle comprises a vehicle body, a moving wheel assembly and a mounting plate body, the mounting plate body is rotatably connected to the vehicle body, the moving wheel assembly is mounted on the mounting plate body, and the lifting device comprises:

[0008] A guide seat, mounted on the vehicle body;

[0009] A transmission component connected to the guide seat, the transmission component is used to move relative to the guide seat under the action of an external force;

[0010] The follower component is connected to the transmission component and moves under the drive of the transmission component to push the mounting plate body to rotate relative to the vehicle body in a direction away from the support surface, thereby lifting the moving wheel assembly away from the support surface.

[0011] The second object of the present application is to provide an automatic guided vehicle, which includes a vehicle body, a moving wheel assembly, a mounting plate and the above-mentioned lifting device, wherein the mounting plate is rotatably connected to the vehicle body, the moving wheel assembly is mounted on the mounting plate, and the guide seat is mounted on the vehicle body.

[0012] The lifting device provided by the present application has the following beneficial effects:

[0013] The lifting device is installed on the vehicle body through a guide seat, and the transmission component is used to convert external force into a force for driving the follower component to move. The external force can be a manually applied force to drive the transmission component to move, so that the follower component can move relative to the guide seat under the transmission drive of the transmission component to push the mounting plate to rotate relative to the vehicle body in a direction away from the supporting surface, thereby lifting the moving wheel assembly. In this way, when the automatic guided vehicle stops operating due to a malfunction or the need for maintenance, the moving wheels of the moving wheel assembly can be lifted away from the supporting surface by the following component, making it convenient for manual pushing of the automatic guided vehicle and reducing the difficulty of carrying the automatic guided vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0015] Figure 1 It is a schematic diagram of the assembly structure of the moving wheel assembly, the mounting plate and the vehicle body in the automatic guided vehicle provided in an embodiment of the present application;

[0016] Figure 2 It is a schematic diagram of the assembly structure of the mounting plate and the vehicle body in the automatic guided vehicle provided in an embodiment of the present application;

[0017] Figure 3 is a schematic structural diagram of a lifting device provided in an embodiment of the present application at a viewing angle;

[0018] Figure 4 is a schematic structural diagram of the lifting device provided in an embodiment of the present application from another perspective;

[0019] Figure 5 It is a schematic diagram of the assembly structure of the transmission component and the guide seat in the lifting device provided in the embodiment of the present application;

[0020] Figure 6 yes Figure 5 Schematic diagram of the cross-sectional structure along the AA direction;

[0021] Figure 7 It is a structural schematic diagram of a follower component in a lifting device provided in an embodiment of the present application at a viewing angle;

[0022] Figure 8 yes Figure 7 Schematic diagram of the cross-sectional structure along the BB direction;

[0023] Fig. 9 is a schematic structural diagram of a follower component in a lifting device provided in an embodiment of the present application from another perspective;

[0024] Fig.10 It is a schematic diagram of the exploded structure of the follower component in the lifting device provided in the embodiment of the present application;

[0025] Fig.11 It is a structural schematic diagram of a guide seat in a lifting device provided in an embodiment of the present application;

[0026] Fig.12 is a structural schematic diagram of a first transmission member in a lifting device provided in an embodiment of the present application;

[0027] Fig.13 It is a schematic diagram of the structure of the second transmission member in the lifting device provided in an embodiment of the present application.

[0028] Description of Figure Numbers:

[0029] 1. Lifting device;

[0030] 10. guide seat; 11. guide portion; 111. guide groove; 112. first guide slide portion; 12. first mounting hole;

[0031] 20. Transmission component; 21. First transmission component; 211. First shaft portion; 212. Second shaft portion; 213. First connection end portion; 214. First step end surface; 215. Second connection end portion; 216. Second step end surface;

[0032] 22, second transmission member; 221, transmission part; 222, second guide slide; 223, second mounting hole; 2231, first hole section; 2232, second hole section; 2233, step end face 1; 23, first bearing; 24, second bearing; 25, first gasket; 26, locking member; 27, second gasket;

[0033] 30. Follower component; 31. Connector; 311. First connecting portion; 3111. Arc groove; 312. Second connecting portion; 32. Follower; 33. Connecting shaft; 34. Accommodating space; 35. Third gasket;

[0034] 201, vehicle body; 2011, connecting seat;

[0035] 202, moving wheel assembly;

[0036] 203, mounting plate; 2031, first side portion; 2032, second side portion; 204, abutment member. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0038] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0039] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or may be indirectly connected to the other element through an intermediate element.

[0040] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0041] like Figure 1 and Figure 3 As shown, the lifting device 1 provided in the embodiment of the present application is used to lift the moving wheel assembly 202 of the automatic guided vehicle off the supporting surface (such as the horizontal supporting surface such as the ground) to reduce the difficulty of carrying the automatic guided vehicle, thereby facilitating manual removal of the automatic guided vehicle. Specifically, the automatic guided vehicle includes a vehicle body 201, a moving wheel assembly 202 and a mounting plate 203, the mounting plate 203 is rotatably connected to the vehicle body 201, and the moving wheel assembly 202 is mounted on the mounting plate 203.

[0042] Among them, the lifting device 1 includes a guide seat 10, a transmission component 20 and a follower component 30. The guide seat 10 is installed on the vehicle body 201, and the transmission component 20 is connected to the guide seat 10. The transmission component 20 is used to move relative to the guide seat 10 under the action of external force; the follower component 30 is connected to the transmission component 20 and moves driven by the transmission component 20 to push the mounting plate 203 to rotate relative to the vehicle body 201 in a direction away from the support surface (not shown in the figure), thereby lifting the moving wheel assembly 202 away from the support surface.

[0043] In this embodiment, the lifting device 1 is installed on the vehicle body 201 through the guide seat 10, and the transmission component 20 is used to convert the external force into a force for driving the follower component 30 to move. The external force can be a manually applied force to drive the transmission component 20 to move. For example, the transmission component 20 can convert the power applied thereto into a force for driving the follower component 30 to move linearly, so that the follower component 30 can move relative to the guide seat 10 under the transmission drive of the transmission component 20 to push the mounting plate 203 to rotate relative to the vehicle body 201 away from the support surface (such as the ground) to lift the moving wheel assembly 202. In this way, when the automatic guided vehicle stops operating due to a malfunction or the need for maintenance, the moving wheel (such as a steering wheel) of the moving wheel assembly 202 can be lifted away from the supporting surface by the follower component 30, which is convenient for manual pushing of the automatic guided vehicle and reduces the difficulty of carrying the automatic guided vehicle.

[0044] The present embodiment uses a lifting device 1 to lift the moving wheel assembly 202 off the supporting surface. Compared with moving the automatic guided vehicle by using a forklift, an overhead crane or a manpower using a crowbar, the present embodiment has a wider applicability and can effectively avoid damaging the automatic guided vehicle and the supporting surface. The lifting device of the present embodiment is provided with a guide seat 10, a transmission component 20 and a follower component 30 to lift the moving wheel assembly 202 off the ground. The structure is simple and can reduce the space occupied by the automatic guided vehicle. Therefore, the lifting device 1 is installed in the limited space in the automatic guided vehicle to lift the moving wheel assembly 202.

[0045] like Figure 1 and Figure 3As shown, in some application embodiments, the moving wheel assembly 202 is a steering wheel assembly, and the automatic guided vehicle is also provided with a driven wheel assembly (not shown). When the automatic guided vehicle is operating normally, the steering wheel assembly rotates to drive the vehicle body 201 to move and the driven wheel assembly to rotate respectively. It can be understood that when the automatic guided vehicle stops operating, the steering wheel in the steering wheel assembly is in a braking state, and the automatic guided vehicle cannot be pushed manually at this time. Therefore, in this embodiment, an external force is applied to the transmission component 20 manually to drive the follower component 30 to move, so as to push the mounting plate 203 to rotate, thereby lifting the moving wheel assembly 202 as a whole off the supporting surface. Compared with the electric lifting scheme, the lifting device 1 of this embodiment can lift the entire moving wheel assembly 202 off the ground when the automatic guided vehicle fails and is in a power-off state or an inoperable state, and when the automatic guided vehicle is in a battery-free state when leaving the factory, so that the moving wheel in the moving wheel assembly 202 is off the ground, which helps to manually push the automatic guided vehicle away and reduces the difficulty of carrying the automatic guided vehicle.

[0046] like Figure 1 and Figure 4 As shown, in some embodiments, the transmission component 20 includes a first transmission component 21 and a second transmission component 22, which simplifies the structure of the transmission component 20. Specifically, the first transmission component 21 is rotatably connected to the guide seat 10, and the second transmission component 22 is sleeved on the first transmission component 21 and slidably connected to the guide seat 10; the first transmission component 21 is used to drive the second transmission component 22 to reciprocate on the guide seat 10 under the action of external force; the follower component 30 is used to move driven by the second transmission component 22 to push the mounting plate 203 to rotate relative to the vehicle body 201.

[0047] In this embodiment, the first transmission member 21 can convert external force (such as rotational power) into power that causes the second transmission member 22 to reciprocate, so that when the first transmission member 21 is rotated by external force, the first transmission member 21 can drive the second transmission member 22 to reciprocate on the guide seat 10, thereby driving the follower member 30 to move in a direction close to the mounting plate body 203 or away from the mounting plate body 203. In this way, when it is necessary to transport the automatic guided vehicle that has stopped working, the first transmission member 21 is driven to rotate by applying external force, thereby driving the second transmission member 22 to move in a direction close to the mounting plate body 203, and then driving the follower member 30 to move in a direction close to the mounting plate body 203. In this way, the follower member 30 can push the mounting plate body 203 to rotate relative to the vehicle body 201 in a direction away from the support surface, so as to lift the moving wheel assembly 202 away from the support surface, which is conducive to manually pushing the automatic guided vehicle away.

[0048] In some embodiments, in combination Fig.12 The first transmission member 21 may be a transmission shaft, which may transmit the manually applied rotational power to the second transmission member 22 .

[0049] like Figure 1 , Figure 4 and Fig.11 As shown, in some embodiments, the guide seat 10 is provided with a guide portion 11 and a first mounting hole 12, the guide portion 11 extends along the axial direction of the first transmission member 21, and in the axial direction of the first transmission member 21, the first mounting hole 12 is located on the side of the guide portion 11 away from the mounting plate body 203; the first transmission member 21 passes through the first mounting hole 12, and the second transmission member 22 is slidably connected to the guide portion 11, and the first transmission member 21 is used to drive the second transmission member 22 to reciprocate on the guide portion 11 under the action of external force.

[0050] In this embodiment, the guide portion 11 is used to guide the second transmission member 22 to move along the axial direction of the first transmission member 21, so that when an external force is used to drive the first transmission member 21 to rotate relative to the first mounting hole 12, it can effectively ensure that the second transmission member 22 drives the follower component 30 to move along the axial direction of the first transmission member 21 and push against the mounting plate 203. In some embodiments, the guide seat 10 is fixed to the vehicle body 201 by screws.

[0051] like Figure 2 and Figure 3 As shown, in some application scenarios, the mounting plate body 203 is parallel to the horizontal plane, and the mounting plate body 203 has a first side portion 2031 and a second side portion 2032. The first side portion 2031 and the second side portion 2032 are relatively arranged along the axial direction of the first transmission member 21, and the first side portion 2031 is hinged to the vehicle body 201. In this way, during the horizontal movement of the follower component 30 toward the direction close to the mounting plate body 203, the follower component 30 can contact the second side portion 2032 and gradually push and lift the second side portion 2032 to make the mounting plate body 203 rotate upward relative to the vehicle body 201.

[0052] like Figure 4 , Fig.11 and Fig.13As shown, in some embodiments, the guide portion 11 includes a guide groove 111 and two first guide slides 112, the guide groove 111 and the first guide slides 112 both extend along the axial direction of the first transmission member 21, and the two first guide slides 112 are respectively arranged on the two inner sides of the guide groove 111; the guide groove 111 is connected to the first mounting hole 12, so that the first transmission member 21 passes through the first mounting hole 12 and extends into the guide groove 111; the second transmission member 22 includes a transmission portion 221 and two second guide slides 222, The moving part 221 is sleeved on the first transmission member 21 to move under the drive of the first transmission member 21; the two second guide slides 222 are respectively arranged on both sides of the transmission part 221, and the transmission part 221 is slidably connected to the first guide slide 112 through the second guide slide 222. The first guide slide 112 guides the second guide slide 222 to move along the axial direction of the first transmission member 21, and the follower component 30 is connected to the side of the transmission part 221 away from the guide seat 10 to follow the transmission part 221 to move on the guide groove 111. Among them, one of the first guide slide 112 and the second guide slide 222 is a slide groove and the other is a protrusion, so as to improve the connection stability between the transmission part 221 and the guide groove 111. Exemplarily, the first guide slide 112 is a slide groove and the second guide slide 222 is a protrusion.

[0053] like Figure 5 , Figure 6 and Fig.11 As shown, in some embodiments, the first transmission member 21 includes a first shaft portion 211 and a second shaft portion 212, and the first shaft portion 211 and the second shaft portion 212 are connected in sequence along the same axis, which helps the first transmission member 21 to drive the second transmission member 22 to move linearly under the action of an external force; the first shaft portion 211 is rotatably connected to the first mounting hole 12, so that the first shaft portion 211 can rotate relative to the first mounting hole 12 under the action of an external force; the second transmission member 22 is sleeved on the second shaft portion 212, and the first shaft portion 211 is used to drive the second shaft portion 212 to move under the action of an external force, so as to drive the second transmission member 22 to reciprocate on the guide portion 11, thereby driving the follower component 30 to move.

[0054] like Figure 5 , Figure 6 and Fig.11As shown, in some embodiments, the first shaft portion 211 rotates relative to the first mounting hole 12, and moves telescopically relative to the first mounting hole 12 along the axial direction of the first mounting hole 12, thereby driving the second shaft portion 212 to reciprocate along the axial direction of the first mounting hole 12, and then driving the second transmission member 22 to reciprocate linearly. In specific applications, the first shaft portion 211 is provided with an external thread, and the first mounting hole 12 is provided with an internal thread adapted to the external thread. The first shaft portion 211 is connected to the first mounting hole 12 by threading, and one end of the first shaft portion 211 away from the second shaft portion 212 is used to adapt to an external tool, so that the first shaft portion 211 can be rotated by means of the external tool. The external tool can be a wrench (such as a hexagonal wrench), so that it is convenient for manual rotation of the first shaft portion 211 through the wrench, so that the first shaft portion 211 rotates relative to the first mounting hole 12, and moves telescopically relative to the first mounting hole 12 along the axial direction of the first mounting hole 12.

[0055] like Figure 5 , Figure 6 and Fig.11 As shown, in some embodiments, the first shaft portion 211 is provided with a first connecting end portion 213 at one end away from the second shaft portion 212, and the orthographic projection of the first connecting end portion 213 along the axial direction of the first shaft portion 211 is a regular polygon, such as a regular hexagon. The first connecting end portion 213 is used to adapt to a hexagonal wrench, so that the first connecting end portion 213 is compatible with an external hexagonal wrench and an internal hexagonal wrench. In one embodiment, the first transmission member 21 can be a threaded screw, and the end of the threaded screw away from the second transmission member 22 is compatible with an external hexagonal wrench and an internal hexagonal wrench.

[0056] like Figure 5 , Figure 6 and Fig.11 As shown, combined with Fig.13 In some embodiments, the transmission component 20 also includes a first bearing 23 and a second bearing 24, the second shaft portion 212 is sequentially penetrated by the first bearing 23 and the second bearing 24, the second transmission member 22 is provided with a second mounting hole 223, the second shaft portion 212 is penetrated by the second mounting hole 223, so as to penetrate the second transmission member 22; the second mounting hole 223 includes a first hole segment 2231, a second hole segment 2232 and a third hole segment (not shown), along the axial direction of the second shaft portion 212, the first hole segment 2231, the second hole segment 2232 and the third hole segment are sequentially connected; the aperture of the first hole segment 2231 and the aperture of the third hole segment are both smaller than the aperture of the second hole segment 2232; the first bearing 23 is installed in the first hole segment 2231, and the second bearing 24 is installed in the third hole segment.

[0057] It can be understood that the aperture of the first hole segment 2231 is smaller than the aperture of the second hole segment 2232, so that a step end face 2233 is formed between the first hole segment 2231 and the second hole segment 2232, and the step end face 2233 can limit the axial movement of the first bearing 23, thereby improving the stability of the first bearing 23 installed in the first hole segment 2231; the aperture of the third hole segment is smaller than the aperture of the second hole segment 2232, so that a step end face 2 (not shown) is formed between the third hole segment and the second hole segment 2232, and the step end face 2 can limit the axial movement of the second bearing 24, thereby improving the stability of the second bearing 24 installed in the third hole segment.

[0058] Moreover, the first bearing 23 and the second bearing 24 are arranged so that when the first transmission member 21 rotates under the action of an external force, the second transmission member 22 can rotate without following the first transmission member 21, so that the rotational power of the first transmission member 21 can be converted into power to drive the second transmission member 22 to move linearly. In addition, along the radial direction of the second shaft portion 212, the first bearing 23 and the second bearing 24 can separate the second transmission member 22 and the second shaft portion 212 to prevent direct contact between the second transmission member 22 and the second shaft portion 212 and cause wear. Exemplarily, the first bearing 23 and the second bearing 24 are both thrust needle bearings. In a specific application, the second mounting hole 223 is arranged on the transmission portion 221.

[0059] like Figure 5 , Figure 6 and Fig.11 As shown, combined with Fig.12 In some embodiments, the transmission component 20 further includes a first gasket 25, which is sleeved on the second shaft portion 212. The diameter of the second shaft portion 212 is smaller than the diameter of the first shaft portion 211, so that a first step end face 214 is formed between the second shaft portion 212 and the first shaft portion 211, and the first gasket 25 is located between the first bearing 23 and the first step end face 214; along the axial direction of the second shaft portion 212, the two side faces of the first gasket 25 are pressed against the first bearing 23 and the first step end face 214 respectively, so that the first gasket 25 can separate the second transmission member 22 from an axial end face of the first shaft portion 211, and prevent the second transmission member 22 and the first shaft portion 211 from direct contact and causing wear. Exemplarily, the first gasket 25 is a stainless steel gasket.

[0060] In this embodiment, in addition to setting the first bearing 23 between the second shaft portion 212 and the second transmission member 22, a first gasket 25 is also set between an axial end face of the first shaft portion 211 and the first bearing 23, which can effectively prevent the first transmission member 21 and the second transmission member 22 from direct contact and causing wear.

[0061] like Figure 5 , Figure 6 and Fig.11 As shown, combined with Fig.12In some embodiments, the transmission component 20 also includes a locking member 26 and a second gasket 27. The locking member 26 is connected to one end of the second shaft portion 212 away from the first shaft portion 211. The second gasket 27 is sleeved on one end of the second shaft portion 212 away from the first shaft portion 211 and is located between the locking member 26 and the second bearing 24. Along the axial direction of the second shaft portion 212, the two side surfaces of the second gasket 27 are pressed against the second bearing 24 and the locking member 26 respectively.

[0062] In this embodiment, on the basis of providing the second bearing 24 between the second shaft portion 212 and the second transmission member 22, a second gasket 27 is further provided between the locking member 26 and the second bearing 24, so that along the axial direction of the second shaft portion 212, the second gasket 27 and the second bearing 24 jointly separate the second transmission member 22 and the locking member 26, effectively preventing the locking member 26 from directly contacting the second transmission member 22 and causing wear. Exemplarily, the second gasket 27 is a stainless steel gasket, and the locking member 26 is a locking nut.

[0063] like Figure 5 , Figure 6 and Fig.11 As shown, combined with Fig.12 In some embodiments, a second connecting end portion 215 is extended from one end of the second shaft portion 212 away from the first shaft portion 211, and a diameter of the second connecting end portion 215 is smaller than a diameter of the second shaft portion 212, so that a second step end surface 216 is formed between the second connecting end portion 215 and the second end portion, and a second gasket 27 is sleeved on the second connecting end portion 215, and one axial end surface of the second gasket 27 is pressed against the second step end surface 216 and the second bearing 24, and the other axial end surface of the second gasket 27 is pressed against the locking member 26, effectively preventing the locking member 26 from directly contacting the second transmission member 22 and causing wear.

[0064] like Figure 1 and Figure 4 As shown, in some embodiments, the follower component 30 includes a connecting member 31 and a follower 32. The follower 32 is connected to the second transmission member 22 through the connecting member 31, so as to move with the second transmission member 22 together with the connecting member 31. The connecting member 31 drives the follower 32 to move back and forth under the action of the second transmission member 22, so that the follower 32 pushes against the mounting plate 203. In this embodiment, the first transmission member 21 drives the second transmission member 22 to move under the action of an external force, thereby driving the transmission member to move, and then drives the follower 32 to move in a direction close to the mounting plate 203, so as to push the mounting plate 203 to rotate relative to the vehicle body 201. Exemplarily, the follower 32 is a roller bearing follower 32.

[0065] like Figure 1 , Figure 4 and Fig. 9 As shown, combined with Fig.10In some embodiments, the connecting member 31 includes a first connecting portion 311, which is connected to a side of the second transmission member 22 away from the guide seat 10 and moves with the second transmission member 22; the follower component 30 also includes a connecting shaft 33, and the first connecting portion 311 extends two second connecting portions 312 along the axial direction of the first transmission member 21 to facilitate the installation of the connecting shaft 33, and the two ends of the connecting shaft 33 are respectively connected to the two second connecting portions 312; a receiving space 34 is formed between the two second connecting portions 312 and the first connecting portion 311, and the follower 32 is rotatably connected to the connecting shaft 33, and a part of the follower 32 is received in the receiving space 34.

[0066] In this embodiment, when the follower 32 contacts the mounting plate 203 and pushes the mounting plate 203 to rotate away from the supporting surface, the follower 32 is subjected to the reaction force of the mounting plate 203 and rotates relative to the connecting shaft 33, thereby reducing the friction between the follower 32 and the mounting plate 203 and reducing the generation of dust.

[0067] like Figure 2 , Figure 5 and Figure 7 As shown, in some application embodiments, the second side portion 2032 of the mounting plate 203 is fixed with a resisting member 204, the resisting member 204 having a first surface and a second surface, the first surface extending along the axial direction of the first transmission member 21, the second surface being connected to the first surface at an angle so that the second surface is inclined relative to the horizontal plane, so that when the follower 32 contacts the resisting member 204, it can roll along the second surface and gradually lift up the resisting member 204, thereby lifting up the mounting plate 203, and causing the mounting plate 203 to rotate in a direction away from the support surface. Exemplarily, the resisting member 204 is a beveled block.

[0068] like Figure 4 , Fig.10 and Fig.13 As shown, in some embodiments, the first connection portion 311 is connected to the side of the transmission portion 221 facing away from the guide seat 10, and the second connection portion 312 is a protrusion extending from the first connection portion 311 along the axial direction of the first transmission member 21 to guide the follower 32 installed on the connection shaft 33 to move along the axial direction of the first transmission member 21. In some embodiments, the first connection portion 311 is provided with an arc groove 3111 along the radial direction of the connection shaft 33 to avoid the follower 32, which can effectively prevent the outer peripheral surface of the follower 32 from contacting the first connection portion 311.

[0069] like Figure 7 and Figure 8As shown, in some embodiments, the follower component 30 also includes two third gaskets 35, and the two third gaskets 35 are both sleeved on the connecting shaft 33. The two third gaskets 35 correspond to the two second connecting parts 312 one by one, and the third gaskets 35 are located between the follower 32 and the second connecting parts 312.

[0070] In this embodiment, a third gasket 35 is disposed between the second connection portion 312 and the follower 32 along the axial direction of the connection shaft 33. The third gasket 35 can separate the second connection portion 312 and the follower 32 along the axial direction of the connection shaft 33, thereby preventing the second connection portion 312 and the follower 32 from directly contacting along the axial direction of the connection shaft 33 and causing wear, thereby effectively preventing the connection member 31 and the follower 32 from directly contacting and causing wear. Exemplarily, the third gasket 35 is a nylon gasket.

[0071] like Figure 1 and Figure 3 As shown, this embodiment also provides an automatic guided vehicle, which includes a vehicle body 201, a moving wheel assembly 202, a mounting plate 203 and the above-mentioned lifting device 1, the mounting plate 203 is rotatably connected to the vehicle body 201, the moving wheel assembly 202 is installed on the mounting plate 203, and the guide seat 10 is installed on the vehicle body 201.

[0072] In this embodiment, the mounting plate 203 is rotatably connected to the vehicle body 201, so that the mounting plate 203 can rotate relative to the vehicle body 201. In this way, when the moving wheel assembly 202 is lifted by the lifting device 1, an external force can be applied to the transmission component 20 to drive the follower component 30 to move in a direction close to the mounting plate 203, so that the follower component 30 can push the mounting plate 203 to rotate relative to the vehicle body 201 in a direction away from the support surface (such as the ground) to lift the moving wheel assembly 202. In this way, when the automatic guided vehicle stops operating due to a malfunction, the moving wheel (such as a steering wheel) of the moving wheel assembly 202 can be lifted away from the supporting surface by the follower component 30, which makes it convenient to manually push the automatic guided vehicle away and reduces the difficulty of transporting the automatic guided vehicle.

[0073] Combination Figure 1 , Figure 3 and Figure 4 In some embodiments, along the axial direction of the first transmission member 21, the mounting plate 203 and the guide seat 10 are spaced apart so that the second transmission member 22 slidably connected to the guide seat 10 can drive the follower member 30 to move along the axial direction of the first transmission member 21 under the drive of the first transmission member 21.

[0074] like Figure 2 , Figure 3 and Figure 4As shown, in some embodiments, the vehicle body 201 is provided with a connection seat 2011, and the mounting plate body 203 has a first side portion 2031 and a second side portion 2032, the first side portion 2031 and the second side portion 2032 are arranged opposite to each other along the axial direction of the first transmission member 21, the first side portion 2031 is rotatably connected to the connection seat 2011, and the second side portion 2032 is provided with a resistance member 204, and the follower member 30 will contact the resistance member 204 during the axial movement of the first transmission member 21, and gradually push and lift the resistance member 204, so that the mounting plate body 203 rotates in a direction away from the support surface, and lifts the moving wheel assembly 202. In a specific embodiment, the mounting plate body 203 is hinged to the connection seat 2011, simplifying the connection between the mounting plate body 203 and the connection seat 2011.

[0075] The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural changes made by using the contents of the present application specification and drawings under the application concept of the present application, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A lifting device, applied to an automatic guided vehicle, the automatic guided vehicle comprising a vehicle body, a moving wheel assembly and a mounting plate, the mounting plate being rotatably connected to the vehicle body, the moving wheel assembly being mounted on the mounting plate, characterized in that: The lifting device comprises: A guide seat, mounted on the vehicle body; A transmission component connected to the guide seat, the transmission component is used to move relative to the guide seat under the action of an external force; The follower component is connected to the transmission component and moves under the drive of the transmission component to push the mounting plate body to rotate relative to the vehicle body in a direction away from the support surface, thereby lifting the moving wheel assembly away from the support surface.

2. The lifting device according to claim 1, characterized in that: The transmission component comprises a first transmission member and a second transmission member, wherein the first transmission member is rotatably connected to the guide seat, and the second transmission member is sleeved on the first transmission member and slidably connected to the guide seat; The first transmission member is used to drive the second transmission member to reciprocate on the guide seat under the action of an external force; The follower component is used to move under the drive of the second transmission member to push the mounting plate body to rotate relative to the vehicle body.

3. The lifting device according to claim 2, characterized in that: The guide seat is provided with a guide portion and a first mounting hole, the guide portion extends along the axial direction of the first transmission member, and in the axial direction of the first transmission member, the first mounting hole is located on a side of the guide portion away from the mounting plate body; The first transmission member passes through the first mounting hole, the second transmission member is slidably connected to the guide portion, and the first transmission member is used to drive the second transmission member to reciprocate on the guide portion under the action of an external force.

4. The lifting device according to claim 3, characterized in that: The first transmission member includes a first shaft portion and a second shaft portion, and the first shaft portion and the second shaft portion are sequentially connected along the same axis; The first shaft portion is rotatably connected to the first mounting hole, the second transmission member is sleeved on the second shaft portion, and the first shaft portion is used to drive the second shaft portion to move under the action of an external force, so as to drive the second transmission member to reciprocate on the guide portion.

5. The lifting device according to claim 4, characterized in that: The transmission component further includes a first bearing and a second bearing, the second shaft portion passes through the first bearing and the second bearing in sequence, the second transmission component is provided with a second mounting hole, and the second shaft portion passes through the second mounting hole; The second mounting hole comprises a first hole segment, a second hole segment and a third hole segment, and along the axial direction of the second shaft portion, the first hole segment, the second hole segment and the third hole segment are connected in sequence; The aperture of the first hole segment and the aperture of the third hole segment are both smaller than the aperture of the second hole segment; The first bearing and the second bearing are sequentially passed through the second shaft portion, the first bearing is installed in the first hole section, and the second bearing is installed in the third hole section.

6. The lifting device according to claim 5, characterized in that: The transmission component further includes a first gasket, which is sleeved on the second shaft portion, and the diameter of the second shaft portion is smaller than the diameter of the first shaft portion, so that a first step end surface is formed between the second shaft portion and the first shaft portion. The first gasket is located between the first bearing and the first step end surface. Along the axial direction of the second shaft portion, two side surfaces of the first gasket are pressed against the first bearing and the first step end surface respectively; and / or, The transmission component further includes a locking member and a second gasket, wherein the locking member is connected to an end of the second shaft portion away from the first shaft portion, and the second gasket is sleeved on an end of the second shaft portion away from the first shaft portion and is located between the locking member and the second bearing. Along the axial direction of the second shaft portion, two side surfaces of the second gasket are pressed against the second bearing and the locking member respectively.

7. The lifting device according to any one of claims 2 to 6, characterized in that: The follower component includes a connecting member and a follower, wherein the follower is connected to the second transmission member through the connecting member, and the connecting member drives the follower to move back and forth under the action of the second transmission member, so that the follower pushes against the mounting plate.

8. The lifting device according to claim 7, characterized in that: The connecting member includes a first connecting portion, and the first connecting portion is connected to a side of the second transmission member away from the guide seat. The first connecting portion extends into two second connecting portions along the axial direction of the first transmission member, and the follower member further includes a connecting shaft, and two ends of the connecting shaft are respectively connected to the two second connecting portions; A receiving space is formed between the two second connecting parts and the first connecting part. The follower is rotatably connected to the connecting shaft, and a part of the follower is received in the receiving space.

9. The lifting device according to claim 8, characterized in that: The follower component also includes two third gaskets, which are both sleeved on the connecting shaft. The two third gaskets correspond to the two second connecting parts one by one, and the third gaskets are located between the follower and the second connecting parts.

10. An automatic guided vehicle, characterized in that: It comprises a vehicle body, a moving wheel assembly, a mounting plate and a lifting device according to any one of claims 1 to 9, wherein the mounting plate is rotatably connected to the vehicle body, the moving wheel assembly is mounted on the mounting plate, and the guide seat is mounted on the vehicle body.

Images