AGV three-fulcrum wheel train structure

Abstract

The utility model discloses an AGV three-fulcrum wheel train structure which comprises a base, two sets of installation windows are symmetrically formed in the middle of the base, a set of motors are installed in each set of installation windows in a bolting mode, the output ends of the motors are provided with driving wheels in a key connection mode, and the outer sides of the motors are provided with limiting plates in a bolting mode. A buffering supporting plate is clamped to the tail end of the limiting plate, a screw is installed in the middle of the buffering supporting plate in a locking mode, and a buffering spring is installed on the lower portion of the screw. A limiting lug plate is used for limiting rotation of a first rotating shaft, it is guaranteed that two sets of first universal wheels make stable contact with the ground when the first universal wheels on the two sides of a supporting plate are located on the inclined road surface, and the vehicle is more stable, a limiting plate and a buffering supporting plate are installed in a clamped-connection mode, and the buffering supporting plate is matched with a buffering spring through a screw; and when the buffer spring is in a buffer state, the whole buffer spring is limited by the other group of limiting lug plates and the second rotating shaft in real time.

Description

Technical Field

[0001] The utility model relates to the technical field of three-pivot wheel train structures, in particular to an AGV three-pivot wheel train structure. Background Art

[0002] In the field of material handling technology, there are currently two modes of transportation, manned handling machinery and unmanned handling machinery, unmanned handling machinery is collectively referred to as AGV. The material handling machinery involved in the utility model is a type of AGV product, and the three-pivot forklift wheel system structure in the AGV forklift. The three-pivot forklift is driven by the front two wheels and the rear wheels are steered, which can realize the vehicle turning in situ, with a small turning radius, and can operate even if the material spacing is small. Rubber tires have good wear resistance, good elasticity, and wide ground adaptability.

[0003] The Chinese utility model patent with the publication number CN 218231737 U discloses a three-pivot counterbalanced AGV forklift, including a gantry assembly, a navigation bracket, a counterweight, a frame, a steering wheel assembly, a driving wheel assembly, etc. The gantry assembly includes an inner gantry, an outer gantry, a fork frame, and a fork. The bottom of the gantry assembly is fixedly connected to the connecting shaft at the front end of the frame by welding. A gantry pull rod is provided on one side of the top of the gantry assembly. A navigation bracket is provided on the top of the frame. A navigation laser head is installed on the top of the navigation bracket. Three-color lights are installed on both sides of the top of the navigation bracket. The frame has a body structure. A counterweight is installed at one end of the body. Turn signals are provided on both sides of the outside of the counterweight. Laser obstacle avoidance is provided on both sides of the bottom of the counterweight. Through the installation arrangement of the steering wheel assembly and the driving wheel assembly on the frame, a stable three-pivot structure is formed. The front double wheels are driven and the rear wheels are turned. The operation is more flexible and the turning radius is small.

[0004] The three-point balancing structure in the above-mentioned public documents does not have a buffer structure, which makes the vehicle unstable when passing through uneven roads, so an AGV three-point wheel system structure is now needed. Utility Model Content

[0005] The purpose of the utility model is to provide an AGV three-point gear train structure, which can be more stable in the buffer state by rotating with a second rotating shaft and a group of limiting ear plates, and protecting the buffer support plate through the buffering limitation of screws and buffer springs, so as to solve the technical problems mentioned in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an AGV three-point wheel system structure, comprising a base, two groups of installation windows are symmetrically opened in the middle of the base, a group of motors are bolted and installed inside each group of the installation windows, a driving wheel is key-connected and installed at the output end of the motor, a limit plate is bolted and installed at the outer side of the motor, a buffer support plate is clamped and installed at the end of the limit plate, a screw is locked and installed in the middle of the buffer support plate, and a buffer spring is installed under the screw;

[0007] A reinforcement seat is fixedly installed inside the base, two groups of limiting ear plates are symmetrically installed on both sides of the reinforcement seat, a second rotating shaft is rotatably installed at the lower part of the buffer support plate, and the second rotating shaft is rotatably connected with the limiting ear plate.

[0008] Preferably, four groups of wheel mounting holes are symmetrically opened in pairs on the left and right sides of the base, a positioning plate is fitted on one side of the inner part of the base, and another group of limiting ear plates are fitted on the upper surface of the positioning plate.

[0009] Preferably, a support plate is rotatably mounted on the upper portion of the base corresponding to the position of the positioning plate, a first rotating shaft is rotatably mounted at the lower center of the support plate, and the first rotating shaft is rotatably mounted with a limiting ear plate on the upper surface of the positioning plate.

[0010] Preferably, a group of first mounting plates are respectively installed at both ends of the two groups of support plates, a group of first universal wheels are bolted to the bottom of each group of the first mounting plates, and the outer arc surface of each group of the first universal wheels extends from the inside of the corresponding side wheel mounting hole to fit the ground for rotational installation.

[0011] Preferably, a locking plate is bolted and mounted on the upper surface of the middle portion of the buffer support plate, and the buffer support plate is inserted through the center of the locking plate.

[0012] Preferably, a nut is threadedly mounted on the outer arc surface of the screw, and the lower surface of the nut is pressed tightly against the upper surface of the locking plate.

[0013] Preferably, a limit block is fixedly installed at the bottom end of the screw, the top end of the buffer spring is clamped and installed on the limit block, the bottom end of the buffer spring is clamped and installed with a connecting block, and the connecting block is fixedly installed inside the base.

[0014] Preferably, a group of second mounting plates are respectively installed at the end of each group of the buffer support plates, and a group of second universal wheels are bolted to the bottom end of the second mounting plates. The second universal wheels extend from the corresponding side wheel mounting holes and are rotatably installed in contact with the ground.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The first rotating shaft is limited by the limiting ear plate to ensure that the first universal wheels on both sides of the support plate are in stable contact with the ground when the road surface is inclined, making the vehicle more stable. At the same time, the dynamic energy of the two sets of first universal wheels is balanced when the vehicle rotates, thereby improving the stability of the vehicle.

[0017] 2. The rotation of the driving wheel is controlled by a motor to ensure stable movement of the vehicle, and the limit plate and the buffer support plate are installed by clamping. The buffer support plate can limit the up and down movement of the buffer support plate through the cooperation of screws and buffer springs. When the buffer spring is in a buffering state, it is limited by another set of limit ear plates and the second rotating shaft as a whole in real time, ensuring that the second universal wheel is more stable during the buffering process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of a top view of the overall structure of the utility model;

[0020] Figure 3 It is a cutaway schematic diagram of the utility model;

[0021] Figure 4 This is a schematic diagram of the installation structure of the first rotating shaft of the utility model;

[0022] Figure 5 This is a schematic diagram of the second rotating shaft installation structure of the utility model.

[0023] In the figure: 1. base; 2. wheel mounting hole; 3. mounting window; 4. reinforcement seat; 5. positioning plate; 6. limiting ear plate; 7. support plate; 8. first rotating shaft; 9. first mounting plate; 10. first universal wheel; 11. motor; 12. driving wheel; 13. limiting plate; 14. buffer support plate; 15. second rotating shaft; 16. locking plate; 17. screw; 18. limiting block; 19. buffer spring; 20. connecting block; 21. nut; 22. second mounting plate; 23. second universal wheel. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides: an AGV three-point gear train structure, such as Figure 1-Figure 5As shown, it includes a base 1, two groups of installation windows 3 are symmetrically opened in the middle of the base 1, a group of motors 11 are bolted and installed inside each group of installation windows 3, a driving wheel 12 is key-connected and installed at the output end of the motor 11, a limit plate 13 is bolted and installed on the outer side of the motor 11, a buffer support plate 14 is clamped and installed at the end of the limit plate 13, a screw 17 is locked and installed in the middle of the buffer support plate 14, and a buffer spring 19 is installed under the screw 17; a reinforcement seat 4 is fixedly installed inside the base 1, two groups of limiting ear plates 6 are symmetrically installed on both sides of the reinforcement seat 4, a second rotating shaft 15 is rotatably installed at the lower part of the buffer support plate 14, the second rotating shaft 15 is rotatably clamped and installed with the limiting ear plate 6, the installed reinforcement seat 4 limits the limiting ear plate 6, so that the two groups of limiting ear plates 6 can cooperate with the second rotating shaft 15 to control the rotation of the buffer support plate 14, so that the buffer support plate 14 as a whole can press on the buffer spring 19 to complete the buffering function of the structure.

[0026] Preferably, four groups of wheel mounting holes 2 are symmetrically opened on the left and right sides of the base 1, and a positioning plate 5 is fitted on one side of the interior of the base 1, and another group of limiting ear plates 6 are fitted on the upper surface of the positioning plate 5. The four groups of wheel mounting holes 2 opened through the base 1 ensure that the first universal wheel 10 and the second universal wheel 23 can stably extend from the inside of the wheel mounting holes 2, so that the overall structure can move more stably, and the positioning plate 5 fitted inside the base 1 limits the limiting ear plate 6.

[0027] Furthermore, a support plate 7 is rotatably installed on the upper part of the base 1 corresponding to the position of the positioning plate 5, and a first rotating shaft 8 is rotatably installed at the lower center of the support plate 7. The first rotating shaft 8 and the limiting ear plate 6 on the upper surface of the positioning plate 5 are rotatably installed. By rotatably installing the first rotating shaft 8 in the middle of the support plate 7 and the limiting ear plate 6, the two sets of first universal wheels 10 can be more stable when the ground is tilted, and the movement of the structure can be better guaranteed.

[0028] Furthermore, a group of first mounting plates 9 are respectively installed at both ends of the two groups of support plates 7, and a group of first universal wheels 10 are bolted and installed at the bottom of each group of first mounting plates 9, and the outer arc surface of each group of first universal wheels 10 extends from the inside of the corresponding side wheel mounting hole 2 to fit the ground for rotational installation, and the first universal wheels 10 are limited by the first mounting plates 9 to ensure stable use of the first universal wheels 10.

[0029] It is worth mentioning that a locking plate 16 is bolted and installed on the upper surface of the middle part of the buffer support plate 14, and the buffer support plate 14 is inserted through the center of the locking plate 16. The locking plate 16 bolted and installed on the upper surface of the buffer support plate 14 limits the screw 17, and the limit block 18 can be rotated to control the position of the screw 17, so that the elastic strength of the buffer spring 19 can be changed, thereby better absorbing the shock of the structure.

[0030] In addition, a nut 21 is installed on the outer arc surface of the screw 17, and the lower surface of the nut 21 is pressed against the upper surface of the locking plate 16. The motor 11 controls the rotation of the driving wheel 12 so that the device as a whole can move stably. At the same time, the limit plate 13 and the buffer support plate 14 are plugged and installed. The change of the use position of the driving wheel 12 and the second universal wheel 23 is controlled by the cooperation of the second rotating shaft 15 and the limit ear plate 6, so that the device can move better.

[0031] Specifically, a limit block 18 is fixedly installed at the bottom end of the screw 17, the top end of the buffer spring 19 is clamped and installed at the limit block 18, the bottom end of the buffer spring 19 is clamped and installed with a connecting block 20, and the connecting block 20 is fixedly installed inside the base 1. The buffer spring 19 at the bottom end of the screw 17 can adjust its strength by changing the position of the screw 17 to change the buffer strength.

[0032] In addition, a group of second mounting plates 22 are respectively installed at the end of each group of buffer support plates 14, and a group of second universal wheels 23 are bolted to the bottom end of the second mounting plates 22. The second universal wheels 23 extend from the corresponding side wheel mounting holes 2 and are installed to rotate in contact with the ground. The second mounting plates 22 limit the second universal wheels 23 so that the second universal wheels 23 can rotate in contact with the ground, thereby ensuring the movement stability of the device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An AGV three-point gear train structure, characterized in that: The invention comprises a base (1), wherein two groups of installation windows (3) are symmetrically provided in the middle of the base (1), a group of motors (11) are bolted and installed inside each group of the installation windows (3), a driving wheel (12) is key-connected and installed at the output end of the motor (11), a limit plate (13) is bolted and installed on the outer side of the motor (11), a buffer support plate (14) is clamped and installed at the end of the limit plate (13), a screw (17) is locked and installed in the middle of the buffer support plate (14), and a buffer spring (19) is installed below the screw (17); A reinforcing seat (4) is fixedly installed inside the base (1), two groups of limiting ear plates (6) are symmetrically installed on both sides of the reinforcing seat (4), a second rotating shaft (15) is rotatably installed at the lower part of the buffer support plate (14), and the second rotating shaft (15) is rotatably connected to the limiting ear plates (6).

2. The AGV three-point gear train structure according to claim 1, characterized in that: Four groups of wheel mounting holes (2) are symmetrically provided on the left and right sides of the base (1), a positioning plate (5) is fitted on one side of the interior of the base (1), and another group of limiting ear plates (6) are fitted on the upper surface of the positioning plate (5).

3. The AGV three-point gear train structure according to claim 2, characterized in that: A support plate (7) is rotatably mounted on the upper part of the base (1) corresponding to the position of the positioning plate (5); a first rotating shaft (8) is rotatably mounted on the lower center of the support plate (7); the first rotating shaft (8) is rotatably mounted on a limiting ear plate (6) on the upper surface of the positioning plate (5).

4. The AGV three-point gear train structure according to claim 3, characterized in that: A first mounting plate (9) is respectively installed at both ends of the two groups of support plates (7), and a first universal wheel (10) is bolted to the bottom of each group of the first mounting plates (9), and the outer arc surface of each group of the first universal wheel (10) extends from the inside of the wheel mounting hole (2) on the corresponding side to fit the ground for rotational installation.

5. The AGV three-point gear train structure according to claim 4, characterized in that: A locking plate (16) is bolted and mounted on the middle upper surface of the buffer support plate (14), and the buffer support plate (14) is inserted through the center of the locking plate (16).

6. The AGV three-point gear train structure according to claim 5, characterized in that: The outer arc surface of the screw (17) is threadedly mounted with a nut (21), and the lower surface of the nut (21) is pressed tightly against the upper surface of the locking plate (16).

7. The AGV three-point gear train structure according to claim 6, characterized in that: A limit block (18) is fixedly mounted on the bottom end of the screw (17), the top end of the buffer spring (19) is clamped and mounted on the limit block (18), the bottom end of the buffer spring (19) is clamped and mounted with a connecting block (20), and the connecting block (20) is fixedly mounted inside the base (1).

8. The AGV three-point gear train structure according to claim 7, characterized in that: A group of second mounting plates (22) are respectively installed at the end of each group of buffer support plates (14), and a group of second universal wheels (23) are bolted to the bottom end of the second mounting plates (22). The second universal wheels (23) extend from the inside of the wheel mounting holes (2) on the corresponding side and are rotatably installed in contact with the ground.

Images