AGV chassis and heavy-load AGV

Abstract

The utility model relates to an AGV chassis and a heavy load AGV, the AGV chassis is provided with a steering wheel assembly, and the AGV chassis is connected with the steering wheel assembly through a hinge support; the hinge support comprises a bearing seat, a bearing and a rotating shaft, the bearing seat is fixed to the bottom of the AGV chassis, the bearing is installed on the bearing seat, the rotating shaft is rotatably installed in the bearing and is in a horizontal shape, and the two ends of the rotating shaft are fixedly connected with the steering wheel assembly; an oil injection hole leading to the bearing is formed in the rotating shaft, the rotating shaft is provided with an exposed oil injection nozzle, and the oil injection nozzle is communicated with the oil injection hole. According to the improved AGV chassis, the stability of connection between the steering wheel assembly and the chassis is enhanced, and the AGV can smoothly advance while bearing large weight.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical field especially is AGV. BACKGROUND

[0002] AGV (Automatic Guided Vehicle), automatic guided vehicle, is commonly used in manufacturing industry to assist the carrying of materials on production line, improves production efficiency, in the logistics industry, it carries out the carrying and sorting of goods in warehouse, promotes the logistics speed, in other such as food processing, chemical industry AGV is also widely used. AGV carries certain weight of goods to carry, the rudder wheel assembly installed below its chassis needs to bear the function of advancing, the existing AGV has the defect to the installation mode of rudder wheel assembly, has the negative influence to the performance of AGV bearing running. Therefore, the existing AGV has the space for improvement. SUMMARY

[0003] The technical problem solved by the present disclosure is to provide an improved AGV chassis and an AGV with the chassis.

[0004] The technical solution adopted by the utility model to solve its technical problems is: an AGV chassis, the AGV chassis is installed with a rudder wheel assembly, the AGV chassis is connected with the rudder wheel assembly through a hinge support;The hinge support includes a bearing seat, a bearing and a rotating shaft, the bearing seat is fixed to the bottom of the AGV chassis, the bearing is installed on the bearing seat, the rotating shaft is rotatably installed in the bearing, the rotating shaft is horizontal, the two ends of the rotating shaft are fixedly connected with the rudder wheel assembly;And an oil injection hole leading to the bearing is arranged on the rotating shaft, the rotating shaft is provided with an exposed oil injection nozzle, and the oil injection nozzle is in communication with the oil injection hole.

[0005] The AGV chassis as described above, the rudder wheel assembly has a main frame, the main frame is provided with a base, the base includes two oppositely arranged support plates, the upper part of the bearing seat is fixedly connected with the AGV chassis, the lower part of the bearing seat extends between the two support plates, the bearing is installed on the lower part of the bearing seat, and the two ends of the rotating shaft pass through the bearing and are respectively connected with one of the support plates.

[0006] The AGV chassis as described above, the oil injection nozzle is arranged at the end of the rotating shaft, the oil injection hole includes an axial section connected with the oil injection nozzle and a radial section connected with the axial section, one end of the radial section away from the axial section passes through the rotating shaft to reach the bearing.

[0007] As described above, in an AGV chassis, both ends of the rotating shaft are provided with oil injection nozzles, each oil injection nozzle is equipped with an oil injection plug, each oil injection nozzle is connected to an oil injection hole, the axial sections of each oil injection hole are coaxially connected, and each oil injection hole shares a radial section.

[0008] As described above, an AGV chassis has a differential wheel module installed at the front end of the bottom of the main frame, and two sets of universal wheels installed at the rear end of the bottom of the main frame. The differential wheel module and the two sets of universal wheels are arranged in a triangular layout.

[0009] As described above, in an AGV chassis, the rear end of the main frame is connected to the chassis via a tension spring.

[0010] As described above, in an AGV chassis, the end of the tension spring is equipped with an adjusting bolt to adjust its tension.

[0011] As described above, in an AGV chassis, the bearing is a sliding bearing or a rolling bearing.

[0012] As described above, an AGV chassis has a buffer pad between the AGV chassis and the steering wheel assembly.

[0013] A heavy-duty AGV having an AGV chassis as described in any of the preceding claims.

[0014] The beneficial effects of this disclosure are as follows: The improved AGV steering wheel assembly is assembled with the chassis via a hinge bracket. The hinge bracket is fixed to the chassis via a bearing housing. A bearing is installed inside the bearing housing, and then the AGV is rotatably connected to the steering wheel assembly via a rotating shaft inside the bearing. The weight carried by the AGV is transferred to the steering wheel assembly via the chassis and the hinge bracket. The connection between the hinge bracket and the steering wheel assembly uses a bearing housing and a rotating shaft, which makes the structure more stable and helps improve the load-bearing capacity of the AGV. In addition, the rotating shaft is provided with an oil injection channel leading to the bearing, which facilitates the injection of lubricating oil and reduces the friction between the bearing and the rotating shaft, helping the AGV to carry a greater weight while still maintaining good driving performance. Attached Figure Description

[0015] Some specific embodiments of the present invention will now be described in detail by way of example and not limitation, with reference to the accompanying drawings, in which the same reference numerals designate the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale.

[0016] In the attached image:

[0017] Figure 1 This is a first schematic diagram of the AGV chassis of this utility model;

[0018] Figure 2 This is a second schematic diagram of the AGV chassis of this utility model;

[0019] Figure 3 It is the assembly schematic view of the hinge support and the steering wheel assembly in the utility model;

[0020] Figure 4 It is Figure 3 The partial schematic view of A part in the middle;

[0021] Figure 5 It is the connection partial sectional view of the hinge support and the steering wheel assembly in the utility model;

[0022] The identification in the drawing is as follows:

[0023] 1, AGV chassis; 2, steering wheel assembly; 20, main frame; 201, support plate; 21, differential wheel module; 22, universal wheel; 3, hinge support; 30, bearing seat; 301, bearing; 31, rotating shaft; 32, oil injection nozzle; 320, oil injection hole; 4, tension spring; 40, adjusting bolt; 5, buffer pad. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme of the embodiments of the utility model will be described clearly and completely below in combination with the drawings of the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments.

[0025] Based on the described embodiments of the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model. Unless otherwise defined, the technical terms or scientific terms used in the disclosure should be understood as the usual meaning by those of ordinary skill in the art to which the utility model belongs.

[0026] The "first", "second" and similar words used in the disclosure do not represent any order, quantity or importance, but are only used to distinguish different components. Similarly, "one", "a" or "the" and similar words do not represent a quantity limit, but represent the existence of at least one. "Include" or "contain" and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connection" or "connected" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] Reference is made to the accompanying Figures 1-5The utility model discloses an AGV chassis 1 is shown, the AGV chassis 1 is installed with rudder wheel subassembly 2, the AGV chassis 1 is connected with rudder wheel subassembly 2 through hinged support 3, hinged support 3 includes bearing seat 30, bearing 301 and pivot 31, bearing seat 30 is fixed in the bottom of AGV chassis 1, bearing 301 is installed on bearing seat 30, pivot 31 is rotatably installed in bearing 301, pivot 31 is horizontal, both ends of pivot 31 are fixed with rudder wheel subassembly 2, and pivot 31 is equipped with the oil injection hole 320 leading to bearing 301, pivot 31 is equipped with the oil injection nozzle 32 of exposure, and oil injection nozzle 32 is communicated with oil injection hole 320.

[0028] AGV realizes the process of advancing through rudder wheel subassembly 2, and rudder wheel subassembly 2 is rotated compared with chassis through the horizontal pivot 31, to cope with different ground conditions.For example, when uphill, rudder wheel subassembly 2 is rotated and presents the state of high in front and low in back through pivot 31, when downhill, rudder wheel subassembly 2 is rotated and presents the state of low in front and high in back through pivot 31, to keep the adhesion of rudder wheel subassembly 2 and ground.A through hole is arranged on bearing seat 30, bearing 301 is installed in the through hole, and horizontal pivot 31 is rotatably installed in bearing 301, and rudder wheel subassembly 2 is fixed with pivot 31, and rudder wheel subassembly 2 is rotated compared with bearing seat 30 through pivot 31, to adapt to the ups and downs of ground in advancing.Bearing 301 and pivot 31 cooperate, and the action of rudder wheel subassembly 2 is more stable, and it is favorable for AGV to carry greater weight, and the oil injection nozzle 32 of exposure is convenient for injecting lubricating oil to bearing 301, and it is favorable for guaranteeing the stable advancing of rudder wheel subassembly 2 under the condition of greater weight load.

[0029] In some embodiments, the rudder wheel subassembly 2 has a main frame 20, the main frame 20 is provided with a base, the base includes two oppositely arranged support plates 201, the upper part of the bearing seat 30 is fixed with the AGV chassis 1, the lower part of the bearing seat 30 extends to between the two support plates 201, the bearing 301 is installed on the lower part of the bearing seat 30, and both ends of the pivot 31 pass through the bearing 301 and are connected with a support plate 201 respectively.

[0030] The main frame 20 can be connected by a plurality of rod-shaped members, and two support plates 201 are arranged in parallel to form a containing space. The upper part of the bearing seat 30 is fixed on the chassis by screws, and the lower part of the bearing seat 30 is provided with a through hole, and the lower part extends into the containing space. The bearing 301 is installed in the through hole, and the two sides are limited by the support plates 201, so that the bearing 301 is more firmly installed, and the movement of the rotating shaft 31 can be stably supported, which is beneficial to the AGV to bear greater load. The rotating shaft 31 is installed in the bearing 301, and the two ends of the rotating shaft 31 extend out of the bearing 301 and are fixed with the two support plates 201 respectively, so that the main frame 20 (rudder wheel assembly 2) rotates along the bearing 301 through the rotating shaft 31. The bearing 301 preferably adopts a sliding bearing 301, which has good bearing capacity, and a rolling bearing 301 can also be used, but the rolling bearing 301 requires a larger installation space.

[0031] In some embodiments, the oil injection nozzle 32 is arranged at the end of the rotating shaft 31, and the oil injection hole 320 includes an axial section connected with the oil injection nozzle 32, and a radial section connected with the axial section. One end of the radial section away from the axial section penetrates out of the rotating shaft 31 to reach the bearing 301. The oil injection hole 320 includes an axial section extending axially in the rotating shaft 31, and a radial section connected with the axial section and extending radially in the rotating shaft 31 and penetrating out of the rotating shaft 31. The lubricating oil enters through the oil injection nozzle 32, flows from the axial section to the radial section, and finally flows out of the radial section to the bearing 301 and the rotating shaft 31 for lubrication.

[0032] Referring to FIG. 1, Figure 5 Further, the two ends of the rotating shaft 31 are provided with the oil injection nozzle 32, and the oil injection nozzle 32 is provided with an oil injection plug. Each oil injection nozzle 32 is connected with the oil injection hole 320, the axial sections of the oil injection holes 320 are coaxially connected, and the radial sections of the oil injection holes 320 are shared. The oil injection nozzle 32 can be used to inject lubricating oil, and one or both sides can be selected, Figure 5 The continuous arrows in FIG. 1 indicate the flow direction of the lubricating oil.

[0033] In some embodiments, the front end of the bottom of the main frame 20 is provided with a differential wheel module 21, and the rear end of the bottom of the main frame 20 is provided with two groups of universal wheels 22. The differential wheel module 21 and the two groups of universal wheels 22 are arranged in a triangular shape. The differential wheel module 21 can realize the steering function, and the two groups of universal wheels 22 are arranged in a triangular shape to facilitate stable movement.

[0034] In some embodiments, the rear end of the main frame 20 is connected to the chassis by a tension spring 4. One end of the tension spring 4 is connected to the chassis, and the other end of the tension spring 4 is connected to the rear end of the main frame 20. The elastic force of the tension spring 4 helps to ensure that the differential wheel module 21 located at the front end of the main frame 20 maintains contact with the ground, avoiding slipping. Further, an adjusting bolt 40 is provided at the tail of the tension spring 4. By adjusting the adjusting bolt 40, the tension of the tension spring 4 can be adjusted to better adapt to different application scenarios, so that the differential wheel module 21 always maintains contact with the ground when moving, ensuring the stability of movement.

[0035] Further, a buffer pad 5 is provided between the AGV chassis 1 and the rudder wheel assembly 2. The buffer pad 5 serves as a buffer protection for both, which is beneficial to enhance the stability of the AGV when moving under heavy load.

[0036] A heavy-load AGV is provided, which has the AGV chassis 1 according to any one of the preceding embodiments.

[0037] For example, the AGV chassis 1 is provided with a set of rudder wheel assemblies 2 at the front and rear of the bottom, respectively. The two sets of rudder wheel assemblies 2 are mirror-imaged. The front end of each rudder wheel assembly 2 is assembled with the chassis through two hinge supports 3. The differential wheel module 21 of each rudder wheel assembly 2 faces outward from the chassis, and the universal wheel 22 of the two sets of rudder wheel assemblies 2 faces inward, which facilitates the AGV to change the forward direction at any time.

[0038] In summary, the improved AGV chassis 1 enhances the stability of the connection between the rudder wheel assembly 2 and the chassis, which helps the AGV to smoothly move while carrying a large weight.

[0039] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications, combinations and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the scope of the claims of the present application.

Claims

1. An AGV chassis, wherein the AGV chassis is equipped with a steering wheel assembly, characterized in that: The AGV chassis is connected to the steering wheel assembly via a hinge bracket; The hinge bracket includes a bearing housing, a bearing, and a rotating shaft. The bearing housing is fixed to the bottom of the AGV chassis. The bearing is mounted on the bearing housing. The rotating shaft is rotatably mounted in the bearing. The rotating shaft is horizontal. Both ends of the rotating shaft are fixedly connected to the steering wheel assembly. The rotating shaft is provided with an oil injection hole leading to the bearing. The rotating shaft is provided with an exposed oil injection nozzle, which communicates with the oil injection hole.

2. The AGV chassis as described in claim 1, characterized in that: The steering wheel assembly has a main frame with a base on the main frame. The base includes two opposing support plates. The upper part of the bearing housing is fixed to the AGV chassis. The lower part of the bearing housing extends between the two support plates. The bearing is installed in the lower part of the bearing housing. Both ends of the rotating shaft pass through the bearing and are respectively connected to one of the support plates.

3. The AGV chassis as described in claim 2, characterized in that: The grease nipple is disposed at the end of the rotating shaft. The grease hole includes an axial section connected to the grease nipple and a radial section connected to the axial section. One end of the radial section, away from the axial section, extends out of the rotating shaft to reach the bearing.

4. The AGV chassis as described in claim 3, characterized in that: Both ends of the rotating shaft are provided with oil injection nozzles, each oil injection nozzle is equipped with an oil injection plug, each oil injection nozzle is connected to an oil injection hole, the axial sections of each oil injection hole are coaxially connected, and each oil injection hole shares a radial section.

5. An AGV chassis as described in claim 2, characterized in that: A differential wheel module is installed at the front end of the bottom of the main frame, and two sets of universal wheels are installed at the rear end of the bottom of the main frame. The differential wheel module and the two sets of universal wheels are arranged in a triangular layout.

6. The AGV chassis as described in claim 5, characterized in that: The rear end of the main frame is connected to the chassis via a tension spring.

7. An AGV chassis as described in claim 6, characterized in that: The tension spring is equipped with an adjusting bolt at its tail to adjust its tension.

8. An AGV chassis as described in claim 1, characterized in that: The bearing is a sliding bearing or a rolling bearing.

9. An AGV chassis as described in claim 1, characterized in that: A buffer pad is provided between the AGV chassis and the steering wheel assembly.

10. A heavy-duty AGV, characterized in that: The heavy-duty AGV has an AGV chassis as described in any one of claims 1-9.

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