Wheel mechanism and latent traction AGV
By designing a wheel mechanism including a support assembly, a rotating wheel assembly, a follow-up assembly and a directional limit assembly, the problem that the existing latent traction AGV wheel mechanism cannot switch universal and directional is solved, and flexible switching of the rotating wheel assembly is achieved, extending the service life and improving the adaptability of the AGV.
Patent Information
- Application Number
- CN202510399392.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2025-05-23
AI Technical Summary
The existing wheel mechanism that lurks and pulls AGVs cannot switch universal and directional according to actual needs, resulting in sliding friction between the directional wheels and accelerate wear when turning. At the same time, the universal wheels and directional wheels cannot switch to each other, which cannot meet the actual needs of AGVs.
A wheel mechanism is designed, including a support assembly, a rotating wheel assembly, a follow-up assembly and a directional limit assembly. The directional limiting or release the limiting function of the rotating wheel assembly is realized by fixing the limiting positioning or releasing the limiting positioning assembly. The wheel mechanism realizes limiting operation of the directional limiting assembly through the mutual induction cooperation of two inductors and two inductors.
It effectively solves the problem that the wheel mechanism cannot switch universal and direction according to actual needs, extends the service life of the directional wheel and the ground contact surface, improves the flexibility and adaptability of AGV, and is characterized by simple structure and low cost.
Smart Images
Figure CN120024151A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of AGVs, and in particular to a wheel mechanism and a latent traction AGV. Background Art
[0002] The latent traction AGV cart is an automated transport device, which can be hidden at the bottom of the loading trolley. It is mainly used to tow vehicles loaded with goods, operate flexibly in limited spaces, and achieve efficient cargo handling. The latent traction AGV cart has the characteristics of intelligent navigation, flexible adaptability, safety and stability. It is suitable for scenes such as warehouses and manufacturing industries. It will be more intelligent in the future and improve the level of logistics automation.
[0003] In the prior art, the latent traction AGV generally adopts two universal wheels at the front of the vehicle, a driving mechanism in the vehicle, and two fixed wheels at the rear of the vehicle; and the wheel system of the material vehicle carried by the vehicle generally adopts two universal wheels in the front and two fixed wheels in the back; when the fixed wheels on the latent traction AGV are not flush with the fixed wheels of the material vehicle and the latent traction AGV tows the material vehicle to turn, the fixed wheels of the latent traction AGV will compete with the fixed wheels of the material vehicle, and produce sliding friction with the ground, thereby accelerating the wear of the fixed wheel surface and the ground; at the same time, the universal wheels in the prior art support 360° rolling in any direction, and the fixed wheels only support directional rolling, and the two cannot switch with each other, so as to fail to meet the actual needs of the latent traction AGV; therefore, a wheel mechanism and a latent traction AGV are provided to solve the above problems. Summary of the invention
[0004] One of the purposes of the present invention is to provide a wheel mechanism and a latent traction AGV, so as to solve the problem that the existing wheel mechanism cannot perform universal and directional switching according to actual needs.
[0005] The wheel mechanism and the latent traction AGV of the present invention can be realized by the following technical solutions: A wheel mechanism of the present invention comprises a support assembly; a rotating wheel assembly, which is rotatably arranged on the support assembly and can rotate 360 degrees relative to the support assembly; a follower assembly, which is rotatably arranged on the support assembly and meshedly connected with the rotating wheel assembly; a directional limiting assembly, which is arranged on the support assembly and can perform a fixed limiting operation on the follower assembly; Wherein, when the directional limiting assembly performs fixed limiting on the follower assembly, the follower assembly performs a clamping operation on the rotating wheel assembly to achieve a directional operation of the rotating wheel assembly.
[0006] In one embodiment, the rotating wheel assembly includes a rotating support structure, which can be rotatably disposed on the support assembly via a first bearing; a wheel body rotatably disposed on the rotating support structure; and a first gear fixedly disposed on the rotating support structure and meshingly connected to the follower assembly.
[0007] In one embodiment, the rotating support structure includes a support seat; a fixed shaft fixedly disposed on the support seat, and the wheel body is rotatably disposed on the fixed shaft; a rotating shaft fixedly disposed on the support seat and disposed in the first bearing, and the first gear is fixedly connected to the rotating shaft.
[0008] In one embodiment, the follower assembly includes a second bearing, which is fixedly mounted on the support assembly; a follower shaft rotatably mounted on the second bearing; a second gear and a limit block respectively fixedly mounted on the follower shaft, the second gear being meshingly connected with the first gear, and the directional limit assembly being capable of performing a fixed limit operation on the limit block.
[0009] In one embodiment, the directional limit assembly includes a driving device, which is fixedly mounted on the supporting assembly; a sliding structure that is transmission-connected to the driving device and can be slidably connected relative to the supporting assembly; and at least two guide wheel structures that are arranged on the sliding structure and can perform a limiting operation on the limit block.
[0010] In one embodiment, the sliding structure includes a sliding bracket, which is transmission-connected to the driving device, and at least two guide wheel structures are fixedly arranged on the sliding bracket; and a sliding seat fixedly arranged on the sliding bracket and slidably arranged on the guide rail of the support assembly.
[0011] In one embodiment, the guide wheel structure includes a guide shaft, which is fixedly disposed on the sliding bracket; and a pulley body, which is rotatably disposed on the guide shaft and can be in limiting contact with the limiting block.
[0012] In one embodiment, the support assembly includes a support structure; a guide rail fixedly disposed on the support structure, and the directional limit assembly is slidably disposed on the guide rail; and a first sensor and a second sensor are respectively fixedly disposed on the support structure.
[0013] In one embodiment, the directional limiting component is provided with a first sensing sheet and a second sensing sheet, which can respectively perform sensing operations with the first sensor and the second sensor.
[0014] A latent traction AGV of the present invention includes the wheel mechanism described in any one of the above items.
[0015] Compared with the prior art, the beneficial effects of a wheel mechanism and a latent traction AGV of the present invention are as follows: With the wheel mechanism and the latent traction AGV of the present invention, the follow-up components are respectively fixed and limited or the limit is released through the directional limiting component, so as to realize the directional or universal function of the rotating wheel component, effectively solving the problem that the existing wheel mechanism cannot perform universal and directional switching according to actual needs; through the mutual induction and cooperation of two induction sheets and two sensors, the limiting operation of the directional limiting component is effectively realized; at the same time, the wheel mechanism has the characteristics of simple structure and low cost, can easily realize the switching operation between direction and universality, and has certain market promotion potential. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.
[0017] Figure 1 is a schematic structural diagram of a wheel mechanism of the present invention in a directional state; Figure 2 is a schematic structural diagram of a wheel mechanism of the present invention in a universal state; Figure 3 is Figure 1 a schematic cross-sectional structural diagram of a wheel mechanism of the present invention shown; Figure 4 is Figure 1 an exploded structural diagram of a wheel mechanism of the present invention shown, including a support component, a rotating wheel component, a follow-up component, and a directional limiting component; Figure 5 is Figure 4 a schematic structural diagram of the support component shown; Figure 6 is Figure 4 an exploded structural diagram of the rotating wheel component shown; Figure 7 is Figure 4 an exploded structural diagram of the follow-up component shown; Figure 8 is Figure 4 a schematic structural diagram of the directional limiting component shown; Fig. 9 is a schematic structural diagram of a latent traction AGV of the present invention.
[0018] In the figure, the following are marked: 10, wheel mechanism; 11, support assembly; 111, support structure; 1111, fixing plate; 11111, fixing hole; 11112, through hole; 1112, support plate; 112, guide rail; 113, first sensor; 114, second sensor; 12, rotating wheel assembly; 121, rotating support structure; 1211, support seat; 1212, fixed shaft; 1213, rotating shaft; 122, wheel body; 123, first bearing; 124, first Gear; 13, follower assembly; 131, second bearing; 132, follower shaft; 133, second gear; 134, limit block; 14, directional limit assembly; 141, driving device; 1411, mounting hole; 142, sliding structure; 1421, sliding bracket; 1422, sliding seat; 143, guide wheel structure; 1431, guide shaft; 1432, pulley body; 144, first sensor sheet; 145, second sensor sheet. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.
[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0021] See also Figure 1-Figure 4 As shown, a wheel mechanism 10 of the present invention mainly includes a support assembly 11, a rotating wheel assembly 12, a follower assembly 13 and a directional limiting assembly 14; the support assembly 11 is a supporting body, which is fixedly arranged on the body of the latent traction AGV; the rotating wheel assembly 12 is rotatably arranged on the support assembly 11, and can rotate 360 degrees relative to the support assembly 11; the follower assembly 13 is rotatably arranged on the support assembly 11 and meshed with the rotating wheel assembly 12, and can rotate with the rotation of the rotating wheel assembly 12; the directional limiting assembly 14 is arranged on the support assembly 11 and can perform a fixed limiting operation on the follower assembly 13, so that the rotating wheel assembly 12 can achieve a directional rotation operation.
[0022] See also Figure 1-Figure 5As shown, in this embodiment, the support assembly 11 includes a support structure 111, a guide rail 112, a first sensor 113 and a second sensor 114; the support structure 111 is fixedly mounted on the body of the latent traction AGV; the guide rail 112 is fixedly mounted on the support structure 111, and the directional limit assembly 14 is slidably mounted on the guide rail 112, and the guide rail 112 guides the movement of the directional limit assembly 14; the first sensor 113 and the second sensor 114 are respectively fixedly mounted on the support structure 111, and the two of them respectively sense the movement of the directional limit assembly 14. In this embodiment, the support structure 111 includes a fixed plate 1111 and a support plate 1112; the fixed plate 1111 is fixedly mounted on the body of the latent traction AGV; the support plate 1112 is vertically fixedly mounted on the fixed plate 1111, and the directional limit assembly 14 is mounted on the support plate 1112. Specifically, the fixing plate 1111 is provided with a plurality of fixing holes 11111 and a plurality of through holes 11112, and the support structure 111 is fixedly mounted on the body of the latent traction AGV through the plurality of fixing holes 11111; the rotating wheel assembly 12 and the follower assembly 13 respectively penetrate the fixing plate 1111 through the corresponding through holes 11112. Specifically, the first sensor 113 and the second sensor 114 are both photoelectric switches.
[0023] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, in the present embodiment, the rotating wheel assembly 12 includes a rotating support structure 121, a wheel body 122, a first bearing 123 and a first gear 124; the first bearing 123 is fixedly arranged in the corresponding through hole 11112; the rotating support structure 121 is penetrated on the first bearing 123, and can be rotated 360 degrees relative to the fixed plate 1111 through the first bearing 123; the wheel body 122 is rotatably arranged on the rotating support structure 121; the first gear 124 is fixedly arranged on the rotating support structure 121 and is meshed with the follower assembly 13, and the first gear 124 rotates following the rotation of the rotating support structure 121, thereby driving the follower assembly 13 to rotate relative to the fixed plate 1111.
[0024] See also Figure 6As shown, specifically, the rotating support structure 121 includes a support seat 1211, a fixed shaft 1212 and a rotating shaft 1213; the support seat 1211 is a supporting body; the fixed shaft 1212 is fixedly arranged on the support seat 1211, and the wheel body 122 is rotatably arranged on the fixed shaft 1212; the rotating shaft 1213 is fixedly arranged on the support seat 1211 and is arranged in the first bearing 123, and it can rotate 360 degrees relative to the fixed plate 1111 through the first bearing 123, and the first gear 124 is fixedly connected to the rotating shaft 1213 through a flat key, so that the first gear 124 and the wheel body 122 can respectively realize universal rotation freely along the axial direction of the rotating shaft 1213 and can withstand axial force and radial force.
[0025] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7 As shown, in this embodiment, the follower assembly 13 includes a second bearing 131, a follower shaft 132, a second gear 133 and a limit block 134; the second bearing 131 is fixedly arranged in the corresponding through hole 11112 on the fixed plate 1111; the follower shaft 132 is rotatably arranged on the second bearing 131, and can be rotated relative to the fixed plate 1111 through the second bearing 131; the second gear 133 and the limit block 134 are fixedly arranged on the follower shaft 132 in sequence, the second gear 133 is meshed and connected with the first gear 124, the first gear 124 drives the second gear 133 to rotate, thereby driving the follower shaft 132 and the limit block 134 to rotate in turn, and the directional limit assembly 14 can perform a fixed limit operation on the limit block 134.
[0026] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 8As shown, the directional limiting assembly 14 includes a driving device 141, a sliding structure 142, at least two guide wheel structures 143, a first sensing sheet 144 and a second sensing sheet 145; the driving device 141 is fixedly mounted on the support plate 1112; the sliding structure 142 is slidably arranged on the guide rail 112 and is transmission-connected to the driving device 141, and the driving device 141 drives the sliding structure 142 to reciprocate on the guide rail 112; at least two guide wheel structures 143 are arranged on the sliding structure 142 and can perform limiting operations on the limiting block 134, thereby realizing the directional rotation of the rotating wheel assembly 12; the first sensing sheet 144 and the second sensing sheet 145 are respectively fixedly arranged on the sliding structure 142 and can respectively perform sensing operations with the first sensor 113 and the second sensor 114. In this embodiment, the driving device 141 adopts an electric push rod; two guide wheel structures 143 are symmetrically arranged on the sliding structure 142, and the two cooperate to perform a limiting operation on the limit block 134; in other embodiments, the number of guide wheel structures 143 can be three, four or other plurality, and the number can be set according to actual needs.
[0027] See also Figure 8 As shown, specifically, the sliding structure 142 includes a sliding bracket 1421 and a sliding seat 1422; the sliding bracket 1421 is transmission-connected to the driving device 141, and at least two guide wheel structures 143, a first sensing sheet 144, and a second sensing sheet 145 are fixedly disposed on the sliding bracket 1421 respectively; the sliding seat 1422 is fixedly disposed on the sliding bracket 1421 and slidably disposed on the guide rail 112. Specifically, the guide wheel structure 143 includes a guide shaft 1431 and a pulley body 1432; the guide shaft 1431 is fixedly disposed on the sliding bracket 1421; the pulley body 1432 is rotatably disposed on the guide shaft 1431 and can be contacted and connected with the limiting block 134 in a limiting manner.
[0028] See also Fig. 9 As shown, a latent traction AGV of the present invention includes any one of the wheel mechanisms 10 described above.
[0029] It should be noted that the specific working process of the wheel mechanism and the latent traction AGV of the present invention is: when the wheel mechanism 10 needs to switch from directional to universal, the driving device 141 drives the sliding structure 142 to move on the guide rail 112 in the direction away from the limit block 134, and the two guide wheel structures 143 follow the movement of the sliding structure 142 to release the fixed limit operation of the limit block 134, so that the first gear 124 and the second gear 133 can rotate relative to each other, so that the rotating support structure 121 can rotate 360 degrees relative to the fixed plate 111, completing the switching operation of the wheel mechanism 10 from directional to universal, and when the first sensor plate 144 follows the sliding structure 142 to move into the first sensor 113, the driving device 141 stops working, so that the sliding structure 142 stops moving.
[0030] When the wheel mechanism 10 needs to switch from universal to directional, the driving device 141 drives the sliding structure 142 to move on the guide rail 112 in the direction close to the limit block 134. The two guide wheel structures 143 follow the movement of the sliding structure 142 to implement the fixed limit operation of the limit block 134, so that the second gear 133 engages the first gear 124. Since the rotating support structure 121 is fixedly connected to the first gear 124, the rotating support structure 121 cannot rotate relative to the fixed plate 111, thereby completing the switching operation of the wheel mechanism 10 from universal to directional. When the second sensor plate 143 follows the sliding structure 142 to move into the second sensor 114, the driving device 141 stops working, thereby stopping the sliding structure 142 from moving.
[0031] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0032] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.
Claims
1. A wheel mechanism, characterized in that: include: Support components; A rotating wheel assembly, which is rotatably disposed on the support assembly, and the rotating wheel assembly can perform a 360-degree rotation operation relative to the support assembly; A follower assembly, which is rotatably disposed on the support assembly and meshingly connected with the rotating wheel assembly; A directional limiting assembly, which is arranged on the supporting assembly and can perform a fixed limiting operation on the following assembly; Wherein, when the directional limiting assembly performs fixed limiting on the follower assembly, the follower assembly performs a clamping operation on the rotating wheel assembly to achieve a directional operation of the rotating wheel assembly.
2. A wheel mechanism according to claim 1, characterized in that: The rotating wheel assembly includes a rotating support structure, which is rotatably arranged on the support assembly via a first bearing; a wheel body rotatably arranged on the rotating support structure; and a first gear fixedly arranged on the rotating support structure and meshingly connected to the follower assembly.
3. A wheel mechanism according to claim 2, characterized in that: The rotating support structure includes a support seat; a fixed shaft fixedly arranged on the support seat, and the wheel body is rotatably arranged on the fixed shaft; a rotating shaft fixedly arranged on the support seat and arranged through the first bearing, and the first gear is fixedly connected to the rotating shaft.
4. A wheel mechanism according to claim 2, characterized in that: The follower assembly includes a second bearing, which is fixedly arranged on the support assembly; a follower shaft rotatably arranged on the second bearing; a second gear and a limit block respectively fixedly arranged on the follower shaft, the second gear is meshingly connected with the first gear, and the directional limit assembly can perform a fixed limit operation on the limit block.
5. A wheel mechanism according to claim 4, characterized in that: The directional limiting assembly includes a driving device, which is fixedly mounted on the supporting assembly; a sliding structure that is transmission-connected to the driving device and can be slidably connected relative to the supporting assembly; and at least two guide wheel structures that are arranged on the sliding structure and can perform limiting operations on the limiting block.
6. A wheel mechanism according to claim 5, characterized in that: The sliding structure comprises a sliding bracket which is drivingly connected to the driving device, and at least two guide wheel structures are fixedly arranged on the sliding bracket; and a sliding seat which is fixedly arranged on the sliding bracket and slidably arranged on the guide rail of the support assembly.
7. A wheel mechanism according to claim 6, characterized in that: The guide wheel structure comprises a guide shaft which is fixedly arranged on the sliding bracket; and a pulley body which is rotatably arranged on the guide shaft and can be in contact with the limiting block in a limiting manner.
8. A wheel mechanism according to claim 1, characterized in that: The support assembly comprises a support structure; a guide rail fixedly arranged on the support structure, and the directional limiting assembly is slidably arranged on the guide rail; and a first sensor and a second sensor are respectively fixedly arranged on the support structure.
9. A wheel mechanism according to claim 8, characterized in that: The directional limiting component is provided with a first sensing sheet and a second sensing sheet, which can respectively perform sensing operations with the first sensor and the second sensor.
10. A latent traction AGV, characterized in that: Comprising the wheel mechanism according to any one of claims 1-9.