Electronic scale durability testing device

Abstract

The utility model relates to an electronic scale durability testing device, and belongs to the field of durability testing devices.The electronic scale durability testing device comprises a testing platform, a support and a load frame, the support is erected on the outer side of the testing platform, the load frame is rotationally connected to the support, the support is rotationally connected with a driving disc, and the support is provided with a driving assembly used for controlling the driving disc; a guide hole is formed in the driving disc, a movable column is slidably connected into the guide hole and connected with the load frame through a connecting piece, a plurality of groups of load assemblies used for applying loads to the electronic scales are arranged on the load frame, and each load assembly corresponds to one electronic scale. Under the matching action of the guide hole, the moving column and the connecting piece, the load frame can conveniently drive the load assembly to repeatedly apply a load to the electronic scale, the step of reversely rotating the driving disc and the driving unit of the driving assembly is reduced, the possibility of damage to the driving assembly is reduced, and the durability of the electronic scale can be stably tested by the testing device.

Description

Technical Field

[0001] The present application relates to the field of durability testing devices, and in particular to a durability testing device for an electronic scale. Background Art

[0002] With the development of electronic weighing technology, the market demand for electronic scales with high precision, high stability, and long life is increasing. To meet these demands, it is necessary to simulate actual usage of electronic scales before they leave the factory to test their service life.

[0003] Current testing devices primarily consist of a testing platform, a load structure, and a movable mechanism. The testing platform is used to place the electronic scale to be tested, while the movable mechanism controls the load structure to repeatedly apply a load to the scale, simulating actual use scenarios. To achieve linear motion, the movable mechanism typically uses a linear module or electric cylinder.

[0004] In actual use, since the electronic scale needs to be repeatedly loaded, the motor used to drive the electric cylinder and linear module needs to repeatedly rotate forward and reverse. After long-term use, it is easy to be damaged, which can easily affect the overall detection stability of the detection device, so it needs to be improved. Utility Model Content

[0005] In order to improve the above problems, the present application provides an electronic scale durability testing device.

[0006] This application provides an electronic scale durability testing device, which adopts the following technical solutions:

[0007] A durability testing device for an electronic scale comprises a test platform, a bracket and a load frame, wherein the bracket is mounted on the outside of the test platform, the load frame is rotatably connected to the bracket, a drive disk is rotatably connected to the bracket, a drive assembly for controlling the drive disk is provided on the bracket, a guide hole is provided on the drive disk, a moving column is slidably connected in the guide hole, the moving column is connected to the load frame via a connecting piece, and the load frame is provided with several groups of load assemblies for applying loads to several electronic scales, each of the load assemblies corresponding to an electronic scale.

[0008] By employing the above technical solution, the drive assembly controls the rotation of the drive disc, which, guided by the guide holes, drives the movable column. The movable column, driven by the connecting member, controls the rotation of the load frame, which in turn drives the load assembly to repeatedly apply a load to the electronic scale, thereby automatically testing the durability of the electronic scale. The coordinated action of the guide holes, movable column, and connecting member reduces the number of reverse rotations required for the drive disc and the drive assembly, reducing the likelihood of damage to the drive assembly from repeated forward and reverse rotations. This allows the test device to more reliably test the durability of the electronic scale.

[0009] Preferably, the connecting member includes a connecting rod, one end of the connecting rod is connected to the first joint bearing and the other end is connected to the second joint bearing, the movable column is connected to the first joint bearing, and a connecting column is provided on the load frame, and the connecting column is connected to the second joint bearing.

[0010] By adopting the above technical solution, during the movement of the moving column, the moving column drives the first joint bearing, the connecting rod and the second joint bearing to move in sequence, the second joint bearing then drives the connecting column and the load frame to move in sequence, and the load frame then drives the load assembly to move back and forth, thereby providing convenience for the durability test of the electronic scale.

[0011] Preferably, a cushion block is sleeved on the movable column, one side of the cushion block abuts against the driving disc, and the other side of the cushion block abuts against the first joint bearing.

[0012] By adopting the above technical solution, under the action of the pad, the possibility of friction between the first joint bearing and the connecting rod and the drive disk is reduced, and the possibility of damage to the first joint bearing and the connecting rod during use is reduced, so that the connecting part can more stably realize the transmission function.

[0013] Preferably, the drive assembly includes a motor and a reducer, both of which are arranged on a bracket, the output end of the motor is coaxially connected to the input end of the reducer, and the drive disc is coaxially connected to the output end of the reducer.

[0014] By adopting the above technical solution, the motor transmits kinetic energy to the reducer, and the reducer then transmits the kinetic energy to the drive disk to control the rotation of the drive disk, thereby facilitating the subsequent reciprocating rotation of the load frame.

[0015] Preferably, the load assembly includes a first load rod, a second load rod and a load member, the first load rod is rotatably connected to the load frame, one end of the second load rod is rotatably connected to the first load rod, and the other end is connected to the load member.

[0016] By adopting the above technical solution, during the rotation of the load frame, the load frame drives the first load rod, the second load rod and the load member to move in sequence, so that the load member repeatedly abuts against the electronic scale, thereby realizing the function of automatically and repeatedly applying load to the electronic scale, and providing convenience for the test device to test the durability of the electronic scale.

[0017] Preferably, a plurality of shaft sleeves are embedded in the bracket, each of the shaft sleeves corresponds to a second load rod, and the second load rod is slidably connected to the shaft sleeve at the corresponding position.

[0018] By adopting the above technical solution, during the movement of the second load rod, the shaft sleeve provides guidance for the second load rod, thereby improving the stability of the second load rod during movement and facilitating the second load rod to move the load element to the electronic scale more stably.

[0019] Preferably, the load member includes a hook, an anti-slip plate and a load medium, the hook is arranged on the side of the second load rod away from the first load rod, the anti-slip plate is connected to the hook, the load medium is hung on the hook, and the anti-slip plate is used to separate the load medium from the hook.

[0020] By adopting this technical solution, when testing the durability of an electronic scale, a worker selects a load medium suitable for the scale model and attaches it to the hook. The worker then secures the anti-slip plate to the hook. This plate acts as a stopper for the load medium, reducing the likelihood of the load medium separating from the hook during movement. This allows the load medium to more stably apply load to the electronic scale.

[0021] Preferably, two oppositely arranged stop blocks are provided in the guide hole, a connecting groove is provided on the stop block, a connecting block is slidably connected to the connecting groove, a fixing groove is provided on the inner wall of the guide hole, the connecting block extends into the fixing groove, a spring is provided in the connecting groove, one end of the spring is connected to the bottom of the connecting groove, and the other end is connected to the connecting block.

[0022] Using this technical solution, a worker aligns the stopper with the guide hole and then snaps the stopper into place. When the connecting block contacts the inner wall of the guide hole, it is squeezed and retracts into the connecting groove, compressing the spring. When the connecting block aligns with the fixing groove, the spring's rebound force snaps the block into place, securing the stopper. This provides a stopper for the movable column, reducing the possibility of the movable column separating from the drive disc during movement.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By arranging a drive disc, a moving column, and a connecting piece, the drive disc sequentially drives the moving column and the connecting piece to move, and the connecting piece then drives the load frame to rotate, the load assembly can be controlled to repeatedly apply a load to the electronic scale. This reduces the steps of repeated forward and reverse rotation of the drive disc and the drive assembly, and reduces the possibility of damage to the drive disc and the drive assembly, thereby improving the stability of the test device when testing the durability of the electronic scale;

[0025] 2. By providing a shaft sleeve, the shaft sleeve provides a guide for the movement of the second load rod, so that the load member can be moved more accurately to the corresponding position of the electronic scale, thereby further improving the stability of the test device when testing the durability of the electronic scale;

[0026] 3. By setting the stopper, the stopper provides a limit for the moving column, reducing the possibility of the moving column separating from the driving disk during movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present application;

[0028] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure of the middle part A;

[0029] Figure 3 This is a structural diagram of the second embodiment of the present application for illustrating the positional relationship between the drive disk and the connecting member;

[0030] Figure 4 yes Figure 2 Schematic diagram of the enlarged structure of part B in the middle.

[0031] Explanation of the accompanying drawings: 1. Test platform; 2. Bracket; 21. Drive assembly; 211. Motor; 212. Reducer; 22. Bushing; 3. Load frame; 31. Load assembly; 311. First load rod; 312. Second load rod; 313. Hook; 314. Anti-slip plate; 32. Connecting column; 4. Drive disk; 41. Guide hole; 411. Fixed groove; 42. Moving column; 421. Pad; 5. Connecting rod; 51. First joint bearing; 52. Second joint bearing; 6. Stop block; 61. Connecting groove; 62. Connecting block; 63. Spring. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] Example 1:

[0034] The embodiment of the present application discloses an electronic scale durability testing device. Figure 1 and Figure 2A device for testing the durability of an electronic scale includes a test platform 1, a bracket 2, and a load frame 3. The test platform 1 is used to place the electronic scale. The bracket 2 is mounted outside the test platform 1, and the load frame 3 is rotatably connected to the bracket 2. A drive disk 4 is rotatably connected to the bracket 2, and a drive assembly 21 for driving the drive disk 4 is provided on the bracket 2. The drive disk 4 has a guide hole 41, in which a movable column 42 is slidably connected. The movable column 42 is connected to the load frame 3 via a connector. The load frame 3 is provided with several groups of load assemblies 31. During the durability testing of the electronic scale, the guide holes 41 in the drive disk 4 provide guidance for the movable column 42, allowing the movable column 42 to move back and forth. Under the transmission action of the connector, the movable column 42 drives the load frame 3 to rotate back and forth, thereby automatically applying a load to the electronic scale. At the same time, the repeated forward and reverse rotation of the drive disk 4 and the drive assembly 21 is reduced, reducing the possibility of damage to the drive assembly 21 and the drive disk 4, thereby improving the stability of the test device when testing the durability of the electronic scale.

[0035] Reference Figure 1 and Figure 2 The connecting member includes a connecting rod 5, a first spherical bearing 51 is provided at one end of the connecting rod 5, and a second spherical bearing 52 is provided at the other end, and the first spherical bearing 51 is connected to the movable column 42. A connecting column 32 is provided on the load frame 3, and the second spherical bearing 52 is connected to the connecting column 32. In order to improve the stability of the first spherical bearing 51 during operation, a pad 421 is provided on the movable column 42, and one side of the pad 421 abuts against the drive disk 4, and the other side abuts against the first spherical bearing 51. The pad 421 makes it difficult for the first spherical bearing 51 and the connecting rod 5 to directly contact the drive disk 4, thereby reducing the possibility of damage to the drive disk 4, the first spherical bearing 51 and the connecting rod 5.

[0036] The driving assembly 21 includes a motor 211 and a reducer 212 , both of which are fixed on the bracket 2 , the output end of the motor 211 is coaxially fixed with the input end of the reducer 212 , and the output end of the reducer 212 is coaxially fixed with the driving disk 4 .

[0037] When load frame 3 needs to be rotated, motor 211 activates reducer 212, which in turn drives drive plate 4. Drive plate 4 drives movable column 42 along guide hole 41. This in turn drives first spherical bearing 51, connecting rod 5, and second spherical bearing 52. Second spherical bearing 52 in turn activates connecting column 32 and load frame 3. Load frame 3 can now stably control load assembly 31 to repeatedly apply load to the electronic scale, simulating actual electronic scale usage.

[0038] Reference Figure 1 and Figure 2The load assembly 31 includes a first load rod 311, a second load rod 312 and a load member. The first load rod 311 is rotatably connected to the load frame 3, the second load rod 312 is rotatably connected to the end of the first load rod 311 away from the load frame 3, and the load member is arranged at the end of the second load rod 312 away from the first load rod 311.

[0039] The load element includes a hook 313, an anti-drop plate 314, and a load medium (shown in the figure). The hook 313 is fixed to the end of the second load rod 312 facing away from the first load rod 311. The load medium is attached to the hook 313, and the anti-drop plate 314 is bolted to the hook 313. In this embodiment, the load medium is configured as a sandbag, which contains sand suitable for electronic scale detection.

[0040] When the durability of the electronic scale needs to be tested, the worker hangs the load medium on the hook 313, and then uses bolts to fix the anti-slip plate 314 on the hook 313. At this time, the anti-slip plate 314 can provide a limit for the load medium, reducing the possibility of the load medium separating from the hook 313 during use.

[0041] When the load frame 3 rotates, the load frame 3 sequentially drives the first load rod 311 and the second load rod 312 to move, and the second load rod 312 drives the load medium to move, so that the load medium repeatedly applies load to the electronic scale.

[0042] Reference Figure 2 To improve the stability of the load medium during movement, bracket 2 is equipped with several sleeves 22. Each sleeve 22 corresponds to a second load rod 312, and each second load rod 312 is slidably connected to the corresponding sleeve 22. The sleeves 22 provide guidance for the second load rod 312 during movement, reducing the possibility of deviation during movement, allowing the load medium to be more stably transferred to the electronic scale.

[0043] The implementation principle of Example 1 of the present application is as follows: When the durability of the electronic scale needs to be tested, the drive assembly 21 controls the rotation of the drive disk 4, and the guide hole 41 on the drive disk 4 guides the movable column 42. The movable column 42 drives the load frame 3 to rotate under the transmission action of the connecting member, and the load frame 3 can control the synchronous movement of each group of load components 31 to simulate the actual use scenario of the electronic scale. At this time, under the action of the drive disk 4, movable column 42 and connecting member, the repeated forward and reverse rotation steps of the drive disk 4 and the drive assembly 21 are reduced, the possibility of damage to the drive disk 4 and the drive assembly 21 is reduced, and the stability of the test device during testing is improved.

[0044] Example 2:

[0045] Reference Figure 3 and Figure 4, which is different from the first embodiment of the present application in that: in order to improve the stability of the movable column 42 during movement, two opposite stoppers 6 are detachably connected in the guide hole 41 .

[0046] The stopper 6 has a connecting groove 61, into which a connecting block 62 is slidably connected. A fixing groove 411 is defined on the inner wall of the guide hole 41, into which the connecting block 62 extends. A spring 63 is disposed within the connecting groove 61, one end of which is secured to the bottom of the connecting groove 61 and the other end to the connecting block 62. The ends of the connecting block 62 are arc-shaped. This arc-shaped end facilitates the insertion of the connecting block 62 into the corresponding fixing groove 411 and reduces the possibility of damage to the drive disk 4 caused by the connecting block 62.

[0047] The working principle of Example 2 of the present application is as follows: When controlling the movement of the movable column 42, a worker engages the stopper 6 in the guide hole 41. When the connecting block 62 contacts the inner wall of the guide hole 41, it is squeezed and retracts into the fixing groove 411, at which point the spring 63 is compressed. When the connecting block 62 is aligned with the fixing groove 411, the spring 63's rebound force forces the connecting block 62 into the fixing groove 411, securing the stopper 6. The stopper 6 thus provides a position limit for the movable column 42, reducing the possibility of separation between the movable column 42 and the drive disk 4, thereby improving the stability of the testing device during use.

[0048] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An electronic scale durability testing device, characterized by: The invention comprises a test platform (1), a bracket (2) and a load frame (3), wherein the bracket (2) is mounted outside the test platform (1), the load frame (3) is rotatably connected to the bracket (2), a driving disk (4) is rotatably connected to the bracket (2), a driving component (21) for controlling the driving disk (4) is provided on the bracket (2), a guide hole (41) is provided on the driving disk (4), a moving column (42) is slidably connected in the guide hole (41), the moving column (42) is connected to the load frame (3) through a connecting piece, and a plurality of groups of load components (31) for applying loads to a plurality of electronic scales are provided on the load frame (3), and each of the load components (31) corresponds to an electronic scale.

2. The electronic scale durability testing device according to claim 1, characterized in that: The connecting member comprises a connecting rod (5), one end of the connecting rod (5) is connected to a first joint bearing (51), and the other end is connected to a second joint bearing (52), the movable column (42) is connected to the first joint bearing (51), and the load frame (3) is provided with a connecting column (32), and the connecting column (32) is connected to the second joint bearing (52).

3. The electronic scale durability testing device according to claim 2, characterized in that: A cushion block (421) is sleeved on the movable column (42), one side of the cushion block (421) abuts against the driving disc (4), and the other side abuts against the first joint bearing (51).

4. The electronic scale durability testing device according to claim 1, characterized in that: The drive assembly (21) comprises a motor (211) and a reducer (212), wherein the motor (211) and the reducer (212) are both arranged on a bracket (2), the output end of the motor (211) is coaxially connected to the input end of the reducer (212), and the drive disc (4) is coaxially connected to the output end of the reducer (212).

5. The electronic scale durability testing device according to claim 1, characterized in that: The load assembly (31) comprises a first load rod (311), a second load rod (312) and a load member, wherein the first load rod (311) is rotatably connected to the load frame (3), and one end of the second load rod (312) is rotatably connected to the first load rod (311) and the other end is connected to the load member.

6. The electronic scale durability testing device according to claim 5, characterized in that: A plurality of shaft sleeves (22) are embedded on the bracket (2), each shaft sleeve (22) corresponds to a second load rod (312), and the second load rod (312) is slidably connected to the shaft sleeve (22) at the corresponding position.

7. The electronic scale durability testing device according to claim 5, characterized in that: The load member comprises a hook (313), an anti-slip plate (314) and a load medium; the hook (313) is arranged on a side of the second load rod (312) away from the first load rod (311); the anti-slip plate (314) is connected to the hook (313); the load medium is hung on the hook (313); and the anti-slip plate (314) is used to separate the load medium from the hook (313).

8. The electronic scale durability testing device according to claim 1, characterized in that: Two oppositely arranged stoppers (6) are provided in the guide hole (41), a connecting groove (61) is provided on the stopper (6), a connecting block (62) is slidably connected in the connecting groove (61), a fixing groove (411) is provided on the inner wall of the guide hole (41), the connecting block (62) extends into the fixing groove (411), a spring (63) is provided in the connecting groove (61), one end of the spring (63) is connected to the bottom of the connecting groove (61), and the other end is connected to the connecting block (62).

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