Anti-deflection double-wheel heavy-load AGV damping device

Abstract

The invention relates to an anti-deflection double-wheel heavy-load AGV damping device, and solves the problem that abnormal sound and deflection can also occur under the heavy-load condition of an existing AGV. Comprising a gear train, a connecting plate, a spring guide cover, a pre-tightening bolt, a guide column, a damping spring, a guide sleeve and a gear train fixing block. The wheel train is installed below the wheel train fixing block, the guide sleeve is fixedly connected to the wheel train fixing block, the spring guide cover is fixedly connected to the lower portion of the connecting plate, the guide column is sleeved with the damping spring, the upper end of the guide column is fixed in the spring guide cover, the lower end of the guide column is installed in the guide sleeve, and the pre-tightening bolt is connected between the connecting plate and the wheel train fixing block. A supporting face formed by the spring guide cover, the guide column, the damping spring, the guide sleeve and the pre-tightening bolt is located over the gear train. The AGV is reasonable and compact in structure and convenient to assemble, and the carrying capacity and stability of the AGV are improved.

Description

Technical Field

[0001] The invention belongs to the field of assembly, and in particular relates to an anti-deviation double-wheel heavy-load AGV shock absorbing device, which can increase the load capacity of the AGV and reduce the requirements of the AGV vehicle on the flatness of the ground. Background Art

[0002] With the continuous advancement of industrial automation and the increasing popularity of less-manned or even unmanned manufacturing, the use of AGVs in industry is becoming more and more common. At present, the types and functions of AGVs on the market are relatively comprehensive, but many AGVs do not consider the shock absorption needs during AGV operation. Even if shock absorption is considered, abnormal noise and deviation will occur under heavy load. Therefore, the invention of an anti-deflection heavy-load AGV shock absorption device is an urgent problem to be solved. Summary of the invention

[0003] The present invention solves the problem that abnormal noise and deviation may occur in the current AGV vehicle even when it is heavily loaded by providing an anti-deflection double-wheel heavy-load AGV shock absorbing device.

[0004] The present invention is achieved by the following technical solutions:

[0005] An anti-deflection double-wheel heavy-load AGV shock absorbing device, comprising a wheel train 12, a connecting plate 2, a spring guide cover 1, a pre-tightening bolt 3, a guide column 4, a shock absorbing spring 5, a guide sleeve 14 and a wheel train fixing block 15;

[0006] The gear train 12 is installed below the gear train fixing block 15, the guide sleeve 14 is fixedly connected to the gear train fixing block 15, the spring guide cover 1 is fixedly connected below the connecting plate 2, the shock-absorbing spring 5 is sleeved on the guide column 4, the upper end of the guide column 4 is fixed in the spring guide cover 1, and the lower end is installed in the guide sleeve 14, the pre-tightening bolt 3 is connected between the connecting plate 2 and the gear train fixing block 15, and the supporting surface formed by the spring guide cover 1, the guide column 4, the shock-absorbing spring 5, the guide sleeve 14 and the pre-tightening bolt 3 is located directly above the gear train 12.

[0007] The gear train 12 is mounted on the gear train fixing block 15 via the connecting shaft 10 and the bearing 11 .

[0008] The gear train 12 is divided into two groups.

[0009] The spring guide cover 1, the guide column 4, the damping spring 5 and the guide sleeve 14 are evenly distributed in four groups.

[0010] There are two groups of pre-tightening bolts 3, which are distributed on both sides of the axial direction of the gear train 12.

[0011] The connecting shaft 10 is connected to the coupling 9 and drives the gear train 12 through the transmission of the reducer 7 and the motor 8.

[0012] The motor 8 , the reducer 7 and the coupling 9 are fixedly connected to the gear train fixing block 15 via the drive mounting plate 6 .

[0013] The present invention has a reasonable and compact structure and is easy to assemble, and can greatly save costs, improve the carrying capacity and stability of the AGV, and reduce the occurrence of safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the anti-deviation double-wheel heavy-load shock absorbing device of the present invention;

[0015] Figure 2 It is a schematic diagram of the shock absorbing structure;

[0016] Figure 3 This is a schematic diagram of the driver installation board;

[0017] Figure 4 Schematic diagram of the connecting shaft.

[0018] Figure numbers: 1. Spring guide cover; 2. Connecting plate; 3. Pre-tightening bolt; 4. Guide column; 5. Shock-absorbing spring; 6. Drive mounting plate; 7. Reducer; 8. Motor; 9. Coupling; 10. Connecting shaft; 11. Bearing; 12. Gear train; 13. Bearing end cover; 14. Guide sleeve; 15. Gear train fixing block. DETAILED DESCRIPTION

[0019] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 The wheel train 12 of the anti-biased double-wheel heavy-duty AGV shock absorber is symmetrically assembled on the wheel train fixing block 15 through the connecting shaft 10, the bearing 11, and the bearing end cover 13, so that the load-bearing capacity of the entire shock absorber is doubled. The guide sleeve 14 is fixed on the wheel train fixing block 15, and the spring guide cover 1 and the guide column 4 are fixed on the connecting plate 2. The two are connected through the shock absorber spring 5. This method provides anti-biasing ability on the one hand, and on the other hand, provides guidance for the four groups of shock absorber springs 5 ​​through the guide sleeve 14 and the guide column 4 and ensures the shock absorption effect of the shock absorber spring 5. The drive system of the anti-biased double-wheel heavy-duty AGV shock absorber fixes the motor 8, the reducer 7, and the coupling 9 through the drive mounting plate 6 installed on the wheel train fixing block 15, and finally drives the operation of the wheel train 12 through the transmission of the coupling 9 and the connecting shaft 10. One end of the pre-tightening bolt 3 is fixed on the connecting plate 2 and the other end passes through the wheel train fixing block 15 and adjusts the preload of the shock-absorbing spring 5 through the nut at the lower end, so that each set of wheel trains of the AGV vehicle can fully contact the ground and maintain the stability of the vehicle body, so as to reduce the AGV vehicle's requirements for ground flatness.

[0020] The pre-tightening bolts 3, guide pillars 4, shock-absorbing springs 5 ​​and other components are assembled directly above the two sets of wheel trains 12 to ensure that each set of wheel trains 12 is evenly stressed to prevent the AGV from turning outward during operation. The connecting plate 12 of the shock-absorbing device is connected to the corresponding vehicle body by bolts.

[0021] According to the requirements of AGV operation, all parts fixed under the connecting plate 2 are connected to the vehicle body by bolts. After fixation, the anti-deviation double-wheel heavy-duty AGV shock-absorbing device needs to make the preload of all shock-absorbing springs 5 ​​consistent by adjusting the pre-tightening bolts 3 just above the wheel train 12, so that each set of wheel trains of the vehicle body shock-absorbing device can fully contact the ground and maintain the stability of the vehicle body, so as to reduce the requirements of the AGV vehicle for the flatness of the ground.

[0022] The double-wheel heavy-load AGV shock absorbing device of the present invention is designed with two sets of wheel trains and four sets of guide columns and guide sleeves. The shock absorbing springs of the designed four sets of guide columns and guide sleeves are assembled just above the wheel trains, which can provide vertical guiding and anti-eccentric load functions for the heavy-load AGV. The preload of each set of wheel trains is made equal by adjusting the pre-tightening bolts to ensure that each set of wheel trains is in stable contact with the ground, thereby reducing the requirements of the AGV vehicle on the flatness of the ground and prolonging the service life of the AGV vehicle.

[0023] The wheel train is fixed on both sides of the wheel train fixing block through a connecting shaft, and this method can multiply the carrying capacity of the AGV.

[0024] The guide column, guide sleeve and spring guide cover can provide guidance for the shock-absorbing spring and also have the ability to resist unbalanced load, so that the shock-absorbing spring will not be unevenly stressed due to slippage.

[0025] The shock absorbing spring, the wheel train fixing block and the connecting shaft can provide good transmission and support functions for the entire shock absorbing device while meeting the shock absorbing requirements for the AGV.

[0026] The pre-tightening bolts are fixed to the connecting plate, and can adjust the pre-tightening force of the entire shock absorbing device, thereby ensuring that the pre-tightening force of each group of shock absorbing springs is equal and the running stability of the AGV vehicle can be ensured.

[0027] The present invention has the following beneficial effects:

[0028] 1. The present invention can meet the requirements of rapid disassembly and assembly of two sets of wheel trains and improve the load-bearing capacity of the entire wheel train through the designed connecting shaft and wheel train fixing block.

[0029] 2. The present invention can ensure the vertical guidance of the device while having a high anti-eccentric load function by designing 4 groups of guide columns and guide sleeves located just above the wheel train, thereby ensuring the smooth operation of the AGV vehicle.

[0030] 3. The present invention can meet the consistency of pre-tightening of the entire AGV vehicle by designing pre-tightening bolts, thereby reducing the requirements of the AGV vehicle on the flatness of the ground.

[0031] 4. The present invention has a reasonable and compact structure, is easy to assemble, can greatly save costs, improves the carrying capacity and stability of AGV, and reduces the occurrence of safety accidents.

Claims

1. An anti-biased double-wheel heavy-load AGV shock-absorbing device, characterized by: It comprises a gear train (12), a connecting plate (2), a spring guide cover (1), a pre-tightening bolt (3), a guide column (4), a shock absorbing spring (5), a guide sleeve (14) and a gear train fixing block (15); The gear train (12) is mounted below a gear train fixing block (15), the guide sleeve (14) is fixedly connected to the gear train fixing block (15), the spring guide cover (1) is fixedly connected to the below of the connecting plate (2), the damping spring (5) is sleeved on the guide column (4), the upper end of the guide column (4) is fixed in the spring guide cover (1), and the lower end is mounted in the guide sleeve (14), the pre-tightening bolt (3) is connected between the connecting plate (2) and the gear train fixing block (15), and the supporting surface formed by the spring guide cover (1), the guide column (4), the damping spring (5), the guide sleeve (14) and the pre-tightening bolt (3) is located directly above the gear train (12).

2. The anti-deviation double-wheel heavy-load AGV shock absorbing device according to claim 1 is characterized by: The gear train (12) is mounted on the gear train fixing block (15) via a connecting shaft (10) and a bearing (11).

3. The anti-deviation double-wheel heavy-load AGV shock absorbing device according to claim 1 is characterized by: The gear train (12) consists of two groups.

4. The anti-deviation double-wheel heavy-load AGV shock absorbing device according to claim 1 is characterized by: The spring guide cover (1), the guide column (4), the shock absorbing spring (5) and the guide sleeve (14) are evenly distributed in four groups.

5. The anti-deviation double-wheel heavy-load AGV shock absorbing device according to claim 1 is characterized by: The pre-tightening bolts (3) are divided into two groups and are distributed on both axial sides of the gear train (12).

6. The anti-deviation double-wheel heavy-load AGV shock absorbing device according to claim 2 is characterized by: The connecting shaft (10) is connected to the coupling (9) and drives the gear train (12) through the transmission of the reducer (7) and the motor (8).

7. The anti-deviation double-wheel heavy-load AGV shock absorbing device according to claim 6 is characterized by: The motor (8), the reducer (7) and the coupling (9) are fixedly connected to the gear train fixing block (15) via the driving mounting plate (6).

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