Trundle durability detection device

Abstract

The utility model relates to the technical field of trundle detection, in particular to a trundle durability detection device. The caster detection device mainly aims at solving the problems that a common caster detection device can only detect one caster in the detection process in order to avoid the need of being installed on a finished product for detection, the detection efficiency is greatly reduced, meanwhile, the top of the caster needs to be arranged upwards, and the caster cannot be installed in the installation process. According to the technical scheme, the device comprises a detection frame, positioning clamping seats are distributed on the wall body of the top of the detection frame in an array mode, positioning columns are connected into concave structures of the multiple positioning clamping seats, and a movable plate is arranged above the positioning columns. According to the utility model, the durability of a plurality of trundles can be detected at the same time, the trundles can be conveniently disassembled, assembled, replaced and positioned according to the pressure in the detection process, and the detection efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of caster testing technology, and in particular to a caster durability testing device. Background Technology

[0002] Casters are undriven, freely rolling wheels, typically attached to the bottom of larger objects for easy movement on floors or other hard surfaces. Casters usually have four locating holes at their connection points, allowing them to be installed on the bottom of equipment or other structures with the help of screws and nuts, providing support and facilitating movement. Currently, casters are often installed on the product during durability testing. However, this method requires frequent disassembly, making testing extremely inconvenient. Therefore, they are now mounted on movable testing equipment. Driven by a mechanism, the casters rotate and move, completing the durability test.

[0003] However, common caster testing devices, in order to avoid testing finished products, usually only test one caster at a time, which greatly reduces testing efficiency. At the same time, the top of the caster needs to be facing upwards, which requires external assistance for the caster's balance and positioning during installation. In view of this, we propose a caster durability testing device. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a caster durability testing device.

[0005] The technical solution of this utility model is as follows: A caster durability testing device includes a testing frame. Positioning brackets are arrayed on the top wall of the testing frame. Positioning columns are connected to the recessed structures of multiple positioning brackets. A movable plate is positioned above the positioning columns. A rotating assembly and a driving assembly are installed on the bottom wall of the movable plate. A controller is installed on the top wall of the movable plate. Connecting blocks are symmetrically welded to both side walls of the movable plate. Bases are welded to both outer walls of the testing frame. Cylinders are installed on the top walls of both bases. Moving plates are connected to the output ends of multiple cylinders. Reinforcing ribs are welded to the bottom walls of both moving plates.

[0006] Preferably, the rotating assembly includes a first auxiliary frame, on which first rotating holes are symmetrically opened on both side walls, and a first bearing is arranged in each of the two first rotating holes.

[0007] Preferably, the first auxiliary frame is provided with a roller, a rubber sleeve is fitted in the groove of the roller, and first rotating shafts are symmetrically welded on the two side walls of the roller, and two first bearings are fitted on the first rotating shafts at corresponding positions.

[0008] Preferably, the drive assembly includes a second auxiliary frame, which is N-shaped. A motor is mounted on one outer wall of the second auxiliary frame, and the output end of the motor is connected to a second rotating shaft. A worm gear is sleeved on the outer surface wall of the second rotating shaft.

[0009] Preferably, a worm gear is fitted onto the outer surface wall of one of the first rotating shafts, the worm gear being located below the worm and meshing with the worm.

[0010] Preferably, a bearing seat is installed on one inner wall of the second auxiliary frame, and the rotating end of the bearing seat is connected to the end of the second rotating shaft.

[0011] Preferably, guide grooves are symmetrically provided on both sides of the testing frame, and multiple connecting blocks are respectively embedded in the guide grooves corresponding to their positions.

[0012] Compared with the prior art, the present invention has the following beneficial technical effects:

[0013] This invention achieves initial positioning of casters by placing them on positioning brackets and utilizing positioning pins in conjunction with pre-drilled positioning holes on the casters. This eliminates the need for external assistance during the positioning process. Simultaneously, a cylinder lowers a moving plate, causing a movable plate, connected by a connecting block, to follow the moving plate and lower the rotating and driving components. This allows the rollers to apply pressure to the positioned casters, facilitating pressure adjustment during testing. Furthermore, driven by a motor, a second rotating shaft rotates a worm gear, which, in conjunction with multiple rotating components including worm wheels, drives the rollers. This allows for simultaneous durability testing of multiple casters, simplifies the disassembly and assembly speed during testing, and improves testing efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a caster durability testing device;

[0015] Figure 2 yes Figure 1 A schematic diagram of the unfolded three-dimensional structure of the rotating component;

[0016] Figure 3 yes Figure 1 A schematic diagram of the three-dimensional structure of the back.

[0017] Reference numerals: 1. Detection frame; 2. Positioning bracket; 3. Positioning column; 4. Movable plate; 5. Rotating assembly; 51. First auxiliary frame; 52. Roller; 53. First rotating shaft; 54. Worm gear; 55. Rubber sleeve; 6. Drive assembly; 61. Second auxiliary frame; 62. Motor; 63. Second rotating shaft; 64. Worm; 65. Bearing seat; 7. Connecting block; 8. Moving plate; 9. Base; 10. Cylinder; 11. Reinforcing rib; 12. Controller. Detailed Implementation

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. Example

[0019] like Figures 1 to 3 As shown, the present invention proposes a caster durability testing device, comprising a testing frame 1, multiple positioning brackets 2 fixedly installed in a horizontal array on the inner wall of the testing frame 1, multiple positioning posts 3 in groups of four, with the bottom ends of the four positioning posts 3 in each group fixedly connected to the inner wall of the recessed structure at the top of the positioning bracket 2, facilitating insertion into the pre-drilled positioning holes on the caster, and cooperating with the positioning brackets 2 to complete the initial positioning of the caster, which is simple to operate; two bases 9 are symmetrically welded to the outer walls of both sides of the testing frame 1, and multiple cylinders 10 are respectively installed on the top walls of the two bases 9, using the bases 9 to support the cylinders 10; two moving plates 8 are symmetrically arranged on the outer walls of both sides of the testing frame 1, and the output ends of the multiple cylinders 10 are respectively aligned with the position... The bottom wall of the movable plate 8 is connected to the cylinder 10, which facilitates the adjustment of the position of the movable plate 8 under the drive of the cylinder 10. Multiple connecting blocks 7 are inserted into the guide grooves symmetrically opened on the two side walls of the detection frame 1. The two sets of connecting blocks 7 are fixedly connected to the side walls of the movable plate 4 set in the detection frame 1, which facilitates the adjustment of its height under the drive of the cylinder 10, and is conducive to the subsequent pressure test of the casters placed on the positioning card seat 2. Two reinforcing ribs 11 are symmetrically welded to the bottom walls of the two movable plates 8, and their vertical surfaces are close to the outer walls of the fish detection frame 1, which facilitates the improvement of the stability of the movable plate 8 during the lifting process. The controller 12 is fixedly installed on the top wall of the movable plate 4, which facilitates the subsequent operation of the equipment.

[0020] Furthermore, multiple sets of rotating components 5 are installed on the bottom wall of the movable plate 4. Each rotating component 5 includes a first auxiliary frame 51, a roller 52, a first rotating shaft 53, a worm gear 54, and a rubber sleeve 55. The roller 52 is located inside the first auxiliary frame 51. The same-direction ends of the two first rotating shafts 53 pass through the first rotating holes symmetrically opened on both sides of the first auxiliary frame 51 and are connected to the outer walls of both sides of the roller 52. This allows the first bearings arranged in the first rotating holes to be sleeved on the outer surface wall of the first rotating shaft 53, which is used to assist the roller 52 in rotating on the first auxiliary frame 51. The rubber sleeve 55 is sleeved in the pre-reserved rotating groove on the outer wall of the roller 52, which is beneficial for driving the caster's rotating structure to rotate during rotation and increasing the friction during the contact process. This helps reduce wear on the contact points of the caster's rotating structure during durability testing and provides protection. The worm gear 54 is sleeved on the outer surface wall of one of the first rotating shafts 53, which facilitates the subsequent rotation of the roller 52.

[0021] Furthermore, the drive assembly 6 is installed on the bottom wall of the movable plate 4. The drive assembly 6 includes a second auxiliary frame 61, a motor 62, a second rotating shaft 63, a worm gear 64, and a bearing seat 65. The second auxiliary frame 61 is N-shaped and is fixedly installed on the bottom wall of the movable plate 4, just like the first auxiliary frame 51. The motor 62 is fixedly installed on the outer wall of the second auxiliary frame 61. A second rotating hole is opened on one side wall of the second auxiliary frame 61. The position of the second rotating hole corresponds to the position of the bearing seat 65 installed on the inner surface wall of the second auxiliary frame 61, so that one end of the second rotating shaft 63 connected to the rotating end of the bearing seat 65 is inserted into the second rotating hole and connected to the output end of the motor 62, which facilitates rotation under the drive of the motor 62. The worm gear 64 is set inside the second auxiliary frame 61 and is fixedly sleeved on the outer surface wall of the second rotating shaft 63. It also meshes with the worm wheel 54, which facilitates the simultaneous rotation of the rollers 52 included in multiple sets of rotating assemblies 5, enabling simultaneous durability testing of multiple casters and improving testing efficiency.

[0022] In this embodiment, when the caster needs to be tested, the pre-drilled positioning hole at the caster mounting location is aligned with the positioning post 3 and placed on the positioning bracket 2 to achieve initial installation limitation of the caster. The starting cylinder 10 drives the moving plate 8 to descend, and the connecting block 7 pulls the movable plate 4 to descend. The roller 52 applies pressure to the caster's rotating wheel for positioning, which allows the staff to adjust the pressure on the caster according to the testing requirements, so as to simulate different pressure scenarios and improve the flexibility of the testing. When the durability of the caster needs to be tested, the starting motor 62 drives the second rotating shaft 63 to rotate the worm gear 64, so that the worm wheel 54 meshing with the worm gear 64, in conjunction with the first rotating shaft 53, drives the roller 52 to rotate, thereby driving the caster in contact with it to rotate, so as to achieve the purpose of simultaneously testing the rotational durability of multiple casters and improving the testing efficiency. After the test is completed, the starting cylinder 10 pushes the moving plate 8 to rise, so that the roller 52 moves away from the caster and releases the limitation, so that the staff can directly remove the caster from the positioning bracket 2 for replacement, which is simple and easy to operate.

[0023] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A caster durability detection device comprising a detection frame (1), characterized in that: The top wall of the detection frame (1) is provided with an array of positioning sockets (2), the recessed structure of each positioning socket (2) is connected with a positioning column (3), the upper part of the positioning column (3) is provided with a movable plate (4), the bottom wall of the movable plate (4) is provided with a rotating assembly (5) and a driving assembly (6), the top wall of the movable plate (4) is provided with a controller (12), the two side walls of the movable plate (4) are symmetrically welded with a connecting block (7), the two side walls of the detection frame (1) are welded with a base (9), the top wall of the base (9) is provided with a cylinder (10), the output end of the cylinder (10) is connected with a moving plate (8), and the bottom wall of the moving plate (8) is welded with a reinforcing rib (11).

2. The caster durability testing device of claim 1, wherein, The rotating assembly (5) comprises a first auxiliary frame (51), and the two side walls of the first auxiliary frame (51) are symmetrically provided with a first rotating hole.

3. The caster durability testing device of claim 2, wherein, The first auxiliary frame (51) is provided with a roller (52), the rotating groove of the roller (52) is sleeved with a rubber sleeve (55), the two side walls of the roller (52) are symmetrically welded with a first rotating shaft (53), and the two first bearings are sleeved on the position corresponding first rotating shaft (53).

4. The caster durability testing device of claim 3, wherein, The driving assembly (6) comprises a second auxiliary frame (61), the second auxiliary frame (61) is provided with a N-shaped structure, the side wall of the second auxiliary frame (61) is provided with a motor (62), the output end of the motor (62) is connected with a second rotating shaft (63), and the outer surface wall of the second rotating shaft (63) is sleeved with a worm (64).

5. The caster durability testing device of claim 4, wherein, The outer surface wall of the first rotating shaft (53) is sleeved with a worm wheel (54), the worm wheel (54) is located below the worm (64), and the worm wheel (54) is engaged with the worm (64).

6. The caster durability testing device of claim 5, wherein, The side wall of the second auxiliary frame (61) is provided with a bearing seat (65), and the rotating end of the bearing seat (65) is connected with the end of the second rotating shaft (63).

7. The caster durability testing device of claim 1, wherein, The two side walls of the detection frame (1) are symmetrically provided with a guide groove, and the connecting block (7) is embedded in the position corresponding guide groove.

Images