Motor locking force testing device
By setting guide columns and a movable platform in the motor locking force testing device, the test bench is divided into two layers, realizing the tensile and thrust tests of the motor telescopic rod. This solves the problem of simultaneous testing in existing technologies and improves testing efficiency and accuracy.
Patent Information
- Application Number
- CN202423300340.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing testing devices for motor telescopic poles are difficult to perform tensile and thrust tests simultaneously, requiring two different devices, and have limited load-bearing capacity, complex structure, and are not easy to install.
A motor locking force testing device was designed. By setting guide columns and a movable platform between the test benches, the test benches are divided into two layers using the movable platform. The upper layer is used for tensile force testing, and the lower layer is used for thrust force testing. The same device is used to perform two performance tests, and different force tests are achieved by adjusting the weight of the weights.
The device enables the testing of the tension and thrust of the motor telescopic rod, is easy to operate, low in cost, improves load-bearing capacity, and provides accurate test results.
Smart Images
Figure CN223741799U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a testing fixture, and more particularly to a motor locking force testing device. Background Technology
[0002] The description in this section provides only background information related to the disclosure of this utility model and does not constitute prior art.
[0003] There is a type of motor-driven telescopic pole, which is a support device that uses a motor to achieve telescopic and locking functions. It is commonly used in automation equipment, furniture, medical devices and other scenarios. The locking strength of the motor to the telescopic pole directly affects the safety of use. Therefore, the performance of the motor-driven telescopic pole needs to be tested with tooling before leaving the factory or during maintenance.
[0004] Existing testing fixtures are generally difficult to use the same device to test the tension and support force of the motor telescopic rod. Two different devices are required for testing, and they have limited load-bearing capacity, complex structure, and are not easy to install.
[0005] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this utility model and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this utility model. Utility Model Content
[0006] The purpose of this invention is to provide a motor locking force testing device. It can be made by setting a movable platform with guide columns through the frame and using it to place weights. The movable platform divides the frame into two layers. The upper layer can be used for tensile force testing and the lower layer can be used for thrust force testing. It has low cost and is easy to operate.
[0007] To achieve the above objectives, this utility model discloses a motor locking force testing device for testing the locking strength of a motor telescopic rod. The motor locking force testing device includes:
[0008] A platform, comprising a base, a top plate, and guide columns, wherein the base and the top plate are disposed opposite to each other, and the guide columns are connected between the base and the top plate;
[0009] An active platform having a through hole, the active platform being fitted onto the guide post, and the top surface of the active platform being used to place weights;
[0010] Four connectors are respectively disposed on the top surface of the base of the platform, the bottom surface of the top plate of the platform, and the top and bottom surfaces of the movable platform;
[0011] The connecting parts on the top surface of the base of the test stand and the connecting parts on the bottom surface of the movable platform are arranged vertically opposite each other and are used to connect to both ends of the motor telescopic rod, respectively, for testing the thrust of the motor telescopic rod when weights are placed on the movable platform; the connecting parts on the bottom surface of the top plate of the test stand and the connecting parts on the top surface of the movable platform are arranged vertically opposite each other and are used to connect to both ends of the motor telescopic rod, respectively, for testing the tension of the motor telescopic rod when weights are placed on the movable platform.
[0012] As a further description of the above technical solution, the guide columns of the platform are arranged in a rectangular pattern of four, and the four guide columns pass through the four corners of the movable platform respectively.
[0013] As a further description of the above technical solution, each of the connectors is provided with a connection hole, and each end of the motor telescopic rod is provided with a pin for passing through the connection hole.
[0014] As a further description of the above technical solution, the top surface of the active platform, where the weights are placed, is covered with a buffer plate.
[0015] As a further description of the above technical solution, the weights are configured as overlapping rubber-coated barbell plates.
[0016] As a further description of the above technical solution, the platform also includes a support column, which is connected between the base and the top plate.
[0017] As a further description of the above technical solution, the support columns are arranged in a rectangular pattern of four, with the four support columns respectively located at the four corners of the platform.
[0018] Based on the above technical solution, the beneficial effects of this utility model are as follows:
[0019] This utility model discloses a motor locking force testing device. A movable platform with guide columns inserted between the test benches serves as a holder for weights. This platform divides the test bench into two layers. Each layer has two oppositely positioned connectors for connecting the motor telescopic rod. When testing the tensile force of the motor telescopic rod, it is installed on the upper layer; when testing the thrust force, it is installed on the lower layer. This single device tests both properties of the motor telescopic rod, and weight adjustment is achieved simply by changing the weights. The device is easy to operate and has low cost.
[0020] To further understand the features and technical content of this utility model, please refer to the following detailed description and drawings of this utility model. However, the drawings provided are for reference and illustration only and are not intended to limit this utility model. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments or prior art of this specification, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of a tensile test for a motor locking force testing device provided in the embodiments of this specification;
[0023] Figure 2 This is a schematic diagram of the thrust test of a motor locking force testing device provided in the embodiments of this specification;
[0024] In the diagram: 100, motor telescopic rod; 1, platform; 11, base; 12, top plate; 13, guide column; 14, load-bearing column; 2, movable platform; 3, weight; 4, connector; 41, mounting hole; 5, buffer plate. Detailed Implementation
[0025] To enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this specification.
[0026] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can understand the advantages and effects of this utility model from the content disclosed in this specification. This utility model can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this utility model. Furthermore, the accompanying drawings of this utility model are for simple illustration only and are not depictions of actual dimensions, as stated in advance. The following embodiments will further describe the relevant technical content of this utility model in detail, but the disclosed content is not intended to limit the scope of protection of this utility model.
[0027] It should be understood that while terms such as "first," "second," and "third" may be used in this document to describe various components or signals, these components or signals should not be limited by these terms. These terms are primarily used to distinguish one component from another, or one signal from another. Furthermore, the term "or" as used herein should, as appropriate, include any combination of one or more of the related listed items.
[0028] Please see Figure 1-2 This embodiment provides a motor locking force testing device for testing the locking strength of a motor telescopic rod 100. The motor locking force testing device includes:
[0029] The platform 1 includes a base 11, a top plate 12 and a guide column 13. The base 11 and the top plate 12 are arranged opposite to each other, and the guide column 13 is connected between the base 11 and the top plate 12.
[0030] The movable platform 2 has a through hole and is used to be fitted onto the guide post 13. The top surface of the movable platform 2 is used to place the weight 3.
[0031] Four connectors 4 are respectively installed on the top surface of the base 11 of the platform 1, the bottom surface of the top plate 12 of the platform 1, and the top and bottom surfaces of the movable platform 2.
[0032] The connecting piece 4 on the top surface of the base 11 of the test stand 1 is vertically opposite to the connecting piece 4 on the bottom surface of the movable platform 2, and is used to connect to both ends of the motor telescopic rod 100 respectively, for testing the thrust of the motor telescopic rod 100 when the weight 3 is placed on the movable platform 2; the connecting piece 4 on the bottom surface of the top plate 12 of the test stand 1 is vertically opposite to the connecting piece 4 on the top surface of the movable platform 2, and is used to connect to both ends of the motor telescopic rod 100 respectively, for testing the tension of the motor telescopic rod 100 when the weight 3 is placed on the movable platform 2.
[0033] With the above structure, during use, the operator only needs to adjust the movable platform 2 to the preset height and fix it, and then, as follows: Figure 1 As shown, when testing the tensile strength of the motor telescopic rod 100, both ends of the motor telescopic rod 100 are connected to the top plate 12 of the stand 1 and the top surface of the movable platform 2, respectively. The movable platform 2 is initially pulled to a fixed state by the motor telescopic rod 100. Weights 3 can then be placed onto the movable platform 2 from one side of the stand 1 until a preset weight of weights 3 has been stacked. Ensure that the motor telescopic rod 100 does not move and maintain this position for a preset time. If the motor telescopic rod 100 remains motionless, the tensile strength test of the motor telescopic rod 100 is passed and meets the usage standards; otherwise, it does not meet the standards. Figure 2As shown, when it is necessary to test the thrust of the motor telescopic rod 100, connect both ends of the motor telescopic rod 100 to the base 11 of the stand 1 and the top surface of the movable platform 2 respectively, so that the movable platform 2 is initially lifted to a fixed state by the motor telescopic rod 100. Then, place weights 3 on the movable platform 2 from one side of the stand 1 until the preset weight of weights 3 is stacked. Ensure that the motor telescopic rod 100 does not move and maintain this position for a preset time. If the motor telescopic rod 100 does not move, the thrust test of the motor telescopic rod 100 is passed and meets the usage standard; otherwise, it does not meet the standard.
[0034] With the structure described in this embodiment, the motor telescopic rod 100 can withstand tensile force tests up to 4000N and thrust tests up to 6000N, providing a wide range of test ranges while maintaining stability.
[0035] Furthermore, the guide columns 13 of the platform 1 are arranged in a rectangular pattern, with the four guide columns 13 passing through the four corners of the movable platform 2. Through the above structure, the movable platform 2, as a regular rectangular platform, has its four corners effectively limited. Therefore, the load-bearing stability of the movable platform 2 is effectively improved, preventing the weights 3 from falling off due to tilting or swaying of the movable platform 2.
[0036] Furthermore, each connector 4 is provided with a connecting hole 41, and each end of the motor telescopic rod 100 is provided with a pin for passing through the connecting hole 41. Specifically, the pins are detachably connected to both ends of the motor telescopic rod 100. When the motor telescopic rod 100 needs to be installed in this testing device, it is only necessary to fit the pins at both ends into the mounting holes 41 of the corresponding connectors 4. This improves testing efficiency, and the structure of the pin and mounting hole 41 meeting the stability requirements can also be converted into slight force relief or installation tolerance into rotation of the pin relative to the mounting hole 41, effectively improving the service life of this product.
[0037] Furthermore, the top surface of the active platform 2, where the weight 3 is placed, is covered with a buffer plate 5. In this embodiment, the weight used for testing may be in the hundreds of kilograms range. The buffer plate 5 can effectively prevent the impact of vibration caused by the large-volume handling and placement of the weight 3 by the operator when placing it on the active platform 2, thereby indirectly improving the service life of this testing device.
[0038] Furthermore, the weights 3 are stacked rubber-coated barbell plates. Rubber-coated barbell plates are inexpensive and readily available, and their weight is precise, providing a certain degree of elastic cushioning for the moving platform 2.
[0039] Furthermore, the platform 1 also includes support columns 14, which connect the base 11 and the top plate 12. Specifically, the support columns 14 are arranged in a rectangular pattern, with the four support columns 14 respectively located at the four corners of the platform 1. With the above structure, based on the existing guide columns 13 supporting the base 11 and top plate 12 of the platform 1, and considering that the vertical movement of the movable platform 2 might damage the guide columns 13 and affect the stability of the platform 1, load-bearing columns 14 are also provided to maintain the fixed edge frame. This helps to calibrate the levelness of the base 11 and top plate 12, making the measurement results more accurate.
[0040] The above-disclosed content is only a preferred and feasible embodiment of the present utility model, and is not intended to limit the scope of the patent application of the present utility model. Therefore, all equivalent technical changes made using the contents of the present utility model specification and drawings are included in the scope of the patent application of the present utility model.
[0041] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.
[0042] Although this application has been described by way of examples, those skilled in the art will know that this application has many modifications and variations without departing from the spirit of this application, and it is intended that the appended embodiments include these modifications and variations without departing from this application.
Claims
1. A motor locking force testing device for testing the locking strength of a motor telescopic rod, characterized in that, The motor locking force testing device comprises: a rack comprising a base, a top plate and guide columns, the base and the top plate being oppositely arranged, the guide columns being connected between the base and the top plate; a movable platform having a through hole, the movable platform being used for sleeving on the guide columns, and the top surface of the movable platform being used for placing weights; four connecting members, the four connecting members being respectively arranged on the top surface of the base of the rack, the bottom surface of the top plate of the rack, the top surface and the bottom surface of the movable platform; wherein the connecting members on the top surface of the base of the rack and the connecting members on the bottom surface of the movable platform are oppositely arranged in the vertical direction and are used for being respectively connected with the two ends of the motor telescopic rod, for testing the pushing force of the motor telescopic rod in the case that the weights are placed on the movable platform; the connecting members on the bottom surface of the top plate of the rack and the connecting members on the top surface of the movable platform are oppositely arranged in the vertical direction and are used for being respectively connected with the two ends of the motor telescopic rod, for testing the pulling force of the motor telescopic rod in the case that the weights are placed on the movable platform.
2. The motor lock force testing device of claim 1, wherein: The guide columns of the rack are arranged in a rectangular array of four, and the four guide columns are respectively arranged through the four corners of the movable platform.
3. The motor lock force testing device of claim 1, wherein: Each of the connecting members is respectively provided with a connecting hole, and the two ends of the motor telescopic rod are respectively provided with a pin shaft for being arranged in the connecting hole.
4. The motor lock force testing device of claim 1, wherein: The position of the top surface of the movable platform for placing the weights is covered with a buffer plate.
5. The motor lock force testing device of claim 1, wherein: The weights are arranged as overlappingly stacked rubber-coated dumbbell pieces.
6. The motor lock force testing device of claim 1, wherein: The rack further comprises support columns, and the support columns are connected between the base and the top plate.
7. The motor lock force testing device of claim 6, wherein: The support columns are arranged in a rectangular array of four, and the four support columns are respectively arranged at the four corners of the rack.