Trundle height adjusting device for high-load AGV (Automatic Guided Vehicle)

Abstract

The utility model relates to a caster height adjusting device for a high-load AGV (automatic guided vehicle), which belongs to the technical field of AGV carrying equipment and comprises a caster seat, a plurality of casters are arranged on one side of the lower end of the caster seat, caster shafts connected with the caster seat in an inserted manner are arranged on the casters, an upper pressure plate is arranged at the upper end of the caster seat, and a lower pressure plate is arranged at the lower end of the upper pressure plate. A connecting disc fixedly connected with the trundle seat through a bolt is arranged between the upper pressing disc and the trundle seat, a height adjusting block extending into the trundle seat is arranged in the connecting disc, and a height adjusting bolt connected with the height adjusting block in a pressing mode is arranged on the upper pressing disc. And an adjusting nut which is in threaded sleeve connection with the height adjusting bolt is arranged between the height adjusting bolt and the upper pressure plate. The device has the characteristics of compact structure, good operation stability and good use universality. The AGV can be in highly perfect butt joint with the equipment, and the stability and the success rate of transferring are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of AGV handling equipment structure, in particular to a caster height adjustment device for a high-load AGV. Background Art

[0002] In the current AGV market, there is a huge potential market for large-load AGVs of about 6 tons. The large-load AGV independently developed by our company adopts a diagonally installed caster mechanism. The AGV has a large body size and uses general industrial casters. Since the height is relatively fixed, there will be height deviations after assembly. Usually, additional gaskets are used to adjust it, which is time-consuming and labor-intensive. Summary of the invention

[0003] The utility model mainly solves the deficiencies in the prior art and provides a caster height adjustment device for high-load AGV, which has the characteristics of compact structure, good running stability and good versatility. It enables the AGV to perfectly dock with the height of the equipment, and improves the stability and success rate of transfer.

[0004] The above technical problems of the utility model are mainly solved by the following technical solutions:

[0005] A caster height adjustment device for a high-load AGV comprises a caster seat, a plurality of casters are arranged on one side of the lower end of the caster seat, a caster shaft is arranged on the caster and is plugged into the caster seat, an upper pressure plate is arranged on the upper end of the caster seat, a connecting plate is arranged between the upper pressure plate and the caster seat and is bolted and fixed to the caster seat, a height adjustment block extending into the caster seat is arranged in the connecting plate, a height adjustment bolt is arranged on the upper pressure plate and is pressed into contact with the height adjustment block, and an adjustment nut is arranged between the height adjustment bolt and the upper pressure plate and is threadedly sleeved with the height adjustment bolt.

[0006] Preferably, the caster seat includes a top plate, a pair of fixed inner plates which are inserted into the caster shaft at the lower end of the top plate, a pair of fixed outer plates are provided on both sides of the rear of the fixed inner plates, a support shaft which passes through the fixed inner plates is provided at the rear end of the fixed outer plates, an upper limit shaft which is inserted into the fixed outer plates is provided at the upper end of the rear of the fixed inner plates, and a lower limit shaft rod which is inserted into the fixed outer plates is provided at the lower end of the rear of the fixed inner plates.

[0007] Preferably, a locking nut is provided on one side of the caster shaft, upper limit shaft, support shaft and lower limit shaft rod, and the locking nut is used to limit and fix the caster shaft, upper limit shaft, support shaft and lower limit shaft rod.

[0008] Preferably, a spring suspension assembly flexibly connected to the top plate is provided between the support shaft and the caster.

[0009] Preferably, the spring suspension assembly comprises a supporting bottom plate which is integrally welded and fixed to the fixed inner plate, and a spring is provided between the supporting bottom plate and the top plate.

[0010] Preferably, a guide column which is sleeved with the lower part of the spring is provided at the upper end of the support base plate, and the guide column is fixed to the support base plate by screws.

[0011] Preferably, sleeves are provided between the height adjustment block and the top plate, and between the height adjustment block and the connecting plate, and a support rod is provided between the lower end of the height adjustment block and the fixed inner plate, which is slot-connected with the fixed inner plate.

[0012] Preferably, a rotating disk movably sleeved with the connecting disk is provided on the outer side of the connecting disk, and a rotating bearing is provided between the rotating disk and the connecting disk.

[0013] The utility model can achieve the following effects:

[0014] The utility model provides a caster height adjustment device for high-load AGV, which has the characteristics of compact structure, good operation stability and good versatility compared with the prior art, so that the AGV can be perfectly docked with the height of the equipment, and the stability and success rate of transfer are improved.

[0015] A compression spring is set on the caster, and a blocking bolt that can limit the expansion and contraction of the spring is installed on its upper end. The compressible stroke of the caster is adjusted by tightening and loosening the bolt, thereby changing the height of the AGV. The height of the AGV is adjusted according to the height of the equipment docking with the AGV to meet the transportation requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a side structural schematic diagram of the utility model.

[0018] Figure 3 It is a front view structural schematic diagram of the utility model.

[0019] Figure 4 It is a schematic diagram of the structure of the utility model when viewed from above.

[0020] Figure 5 It is a side structural sectional view of the utility model.

[0021] In the figure: slewing plate 1, slewing bearing 2, height adjustment bolt 3, adjusting nut 4, upper pressure plate 5, connecting plate 6, caster seat 7, caster 8, caster shaft 9, upper limit shaft 10, locking nut 11, support shaft 12, fixed outer plate 13, lower limit shaft rod 14, top plate 15, spring suspension assembly 16, fixed inner plate 17, height adjustment block 18, sleeve 19, support rod 20, support bottom plate 21, guide column 22, spring 23. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0023] Example: Figure 1-5 As shown, a caster height adjustment device for a high-load AGV includes a caster seat 7, a pair of casters 8 are provided on one side of the lower end of the caster seat 7, a caster shaft 9 plugged into the caster seat 7 is provided on the caster 8, an upper pressure plate 5 is provided on the upper end of the caster seat 7, a connecting plate 6 fixedly connected to the caster seat 7 with bolts is provided between the upper pressure plate 5 and the caster seat 7, a rotating plate 1 movably sleeved with the connecting plate 6 is provided on the outer side of the connecting plate 6, and a rotating bearing 2 is provided between the rotating plate 1 and the connecting plate 6. A height adjustment block 18 extending into the caster seat 7 is provided in the connecting plate 6, a height adjustment bolt 3 pressed against the height adjustment block 18 is provided on the upper pressure plate 5, and an adjustment nut 4 threadedly sleeved with the height adjustment bolt 3 is provided between the height adjustment bolt 3 and the upper pressure plate 5. A locking nut 11 is provided on one side of the caster shaft 9, the upper limit shaft 10, the support shaft 12 and the lower limit shaft rod 14, and the locking nut 11 is used to limit and fix the caster shaft 9, the upper limit shaft 10, the support shaft 12 and the lower limit shaft rod 14. A sleeve 19 is provided between the height adjustment block 18 and the top plate 15, and between the height adjustment block 18 and the connecting plate 6. A support rod 20 is provided between the lower end of the height adjustment block 18 and the fixed inner plate 17, which is slot-connected with the fixed inner plate 17.

[0024] The caster seat 7 includes a top plate 15, a pair of fixed inner plates 17 are provided at the lower end of the top plate 15 and are plugged into the caster shaft 9, a pair of fixed outer plates 13 are provided at both sides of the rear of the fixed inner plate 17, a support shaft 12 is provided at the rear end of the fixed outer plate 13 and passes through the fixed inner plate 17, an upper limit shaft 10 is provided at the upper end of the rear of the fixed inner plate 17 and is plugged into the fixed outer plate 13, and a lower limit shaft rod 14 is provided at the lower end of the rear of the fixed inner plate 17 and is plugged into the fixed outer plate 13. A spring suspension assembly 16 flexibly connected to the top plate 15 is provided between the support shaft 12 and the caster 8. The spring suspension assembly 16 includes a support bottom plate 21 that is integrally welded and fixed to the fixed inner plate 17, and a spring 23 is provided between the support bottom plate 21 and the top plate 15. A guide column 22 that is sleeved with the lower part of the spring 23 is provided at the upper end of the support bottom plate 21, and the guide column 22 is screwed and fixed to the support bottom plate 21.

[0025] By tightening the height adjustment bolt 3, the height adjustment block 18 generates a thrust acting on the support rod 20, so that the caster 8 is lowered around the support shaft 12, thereby lowering the height of the AGV. By loosening the height adjustment bolt 3, the caster 8 is subjected to the reaction force of the vehicle body when it touches the ground, and the support rod 20 generates a thrust on the height adjustment block 18, so that the caster 8 is raised around the support shaft 12, thereby raising the height of the AGV.

[0026] In summary, the caster height adjustment device for high-load AGV has the characteristics of compact structure, good operation stability and good versatility, which enables the AGV to perfectly dock with the height of the equipment and improves the stability and success rate of transfer.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numerals in the claims should not be regarded as limiting the claims involved.

[0028] In summary, the above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. A caster height adjustment device for a high-load AGV, characterized in that: The invention comprises a caster seat (7), wherein a plurality of casters (8) are provided on one side of the lower end of the caster seat (7), a caster shaft (9) plugged into the caster seat (7) is provided on the caster (8), an upper pressure plate (5) is provided on the upper end of the caster seat (7), a connecting plate (6) bolted to the caster seat (7) is provided between the upper pressure plate (5) and the caster seat (7), a height adjustment block (18) extending into the caster seat (7) is provided in the connecting plate (6), a height adjustment bolt (3) pressed into contact with the height adjustment block (18) is provided on the upper pressure plate (5), and an adjustment nut (4) threadedly sleeved with the height adjustment bolt (3) is provided between the height adjustment bolt (3) and the upper pressure plate (5).

2. The caster height adjustment device for a high-load AGV according to claim 1, characterized in that: The caster seat (7) comprises a top plate (15), the lower end of the top plate (15) is provided with a pair of fixed inner plates (17) which are inserted into the caster shaft (9), the two sides of the rear of the fixed inner plate (17) are provided with a pair of fixed outer plates (13), the rear end of the fixed outer plate (13) is provided with a support shaft (12) which passes through the fixed inner plate (17), the upper end of the rear of the fixed inner plate (17) is provided with an upper limit shaft (10) which is inserted into the fixed outer plate (13), and the lower end of the rear of the fixed inner plate (17) is provided with a lower limit shaft rod (14) which is inserted into the fixed outer plate (13).

3. The caster height adjustment device for a high-load AGV according to claim 2, characterized in that: The caster shaft (9), the upper limit shaft (10), the support shaft (12) and the lower limit shaft rod (14) are all provided with a locking nut (11) on one side, and the caster shaft (9), the upper limit shaft (10), the support shaft (12) and the lower limit shaft rod (14) are fixed in position by using the locking nut (11).

4. The caster height adjustment device for a high-load AGV according to claim 2, characterized in that: A spring suspension assembly (16) flexibly connected to the top plate (15) is provided between the support shaft (12) and the caster (8).

5. The caster height adjustment device for a high-load AGV according to claim 4, characterized in that: The spring suspension assembly (16) comprises a supporting bottom plate (21) which is integrally welded and fixed to the fixed inner plate (17), and a spring (23) is provided between the supporting bottom plate (21) and the top plate (15).

6. The caster height adjustment device for a high-load AGV according to claim 5, characterized in that: The upper end of the support base plate (21) is provided with a guide column (22) sleeved with the lower part of the spring (23), and the guide column (22) is fixedly connected to the support base plate (21) by screws.

7. The caster height adjustment device for a high-load AGV according to claim 2, characterized in that: A sleeve (19) is provided between the height adjustment block (18) and the top plate (15), and between the height adjustment block (18) and the connecting plate (6). A support rod (20) is provided between the lower end of the height adjustment block (18) and the fixed inner plate (17), and is slot-connected with the fixed inner plate (17).

8. The caster height adjustment device for a high-load AGV according to claim 1, characterized in that: A rotating disk (1) movably sleeved with the connecting disk (6) is provided on the outer side of the connecting disk (6), and a rotating bearing (2) is provided between the rotating disk (1) and the connecting disk (6).

Images