Passive multi-rotation constant torque loading test device
Through the design of the passive multi-rotation constant torque loading test device, constant torque loading is achieved using turntables, traction ropes and counterweights, solving the problem of low efficiency of large-angle slewing and torque testing in the existing technology, providing a low cost and flexibility Testing scheme, suitable for a variety of slewing structures.
Patent Information
- Application Number
- CN202323473184.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-20
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2033-12-20
AI Technical Summary
The existing robot joint testing device is difficult to achieve constant torque loading when rotating at large angles, and the cinder on the conveyor belt affects the testing efficiency.
A passive multi-rotation constant torque loading test device is designed, using a combination structure of a turntable, traction rope, counterweight and ladder hole. A constant torque is generated through the traction rope and counterweight, and the test of long torque stroke and multi-rotation angle is realized. .
It realizes effective testing of the maximum torque output capability and rated torque output capability of the robot arm, reduces the testing cost, and supports the loading of different torque gradients, and is suitable for a variety of slewing structures.
Smart Images
Figure CN222135024U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of robot joint testing, in particular to a passive multi-rotation constant torque loading test device. Background Art
[0002] In the field of robot joints, the rotation angle of the robot arm is generally more than 90 degrees, or even larger. After the product design is completed, the actual object needs to be loaded and tested, which requires the loading test device to be able to rotate at a large angle and have high rigidity. During the test, different torque gradient loading can be performed to determine the maximum torque output capacity and rated torque output capacity of the robot arm. Utility Model Content
[0003] In order to make up for the above deficiencies, the utility model provides a passive multi-rotation constant torque loading test device, which aims to improve the problem in the prior art that when the sample coal is transported to the inside of the analyzer through the conveyor belt for a long time, some coal slag often adheres to the surface of the conveyor belt, and as the coal slag on the conveyor belt becomes thicker and thicker, it often affects the moving speed of the conveyor belt and needs to be cleaned.
[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a passive multi-rotation constant torque loading test device includes a base plate, and a turntable on the base plate arranged by a supporting bracket and a mounting bracket, the turntable is connected to the supporting bracket and the mounting bracket through bearings respectively, the turntable is located on one side of the supporting bracket, and a mounting bracket is also arranged on the other side of the turntable, a traction rope is wrapped around the outer extension of the turntable, one end of the traction rope is fixed to the turntable, and the other end of the traction rope is connected to a counterweight, and the mounting bracket is provided with a stepped hole for installing a test product, and the stepped hole corresponds to the rotating shaft of the turntable.
[0005] Through the above technical solution: a stable load torque can be formed, a relatively long torque stroke and an arbitrary rotation angle can be achieved.
[0006] As a further description of the above technical solution: the traction rope is a steel wire rope or a metal chain.
[0007] Through the above technical solution: the steel wire rope and the metal chain have no elasticity, and the continuity of resistance during the test is long-lasting and constant.
[0008] As a further description of the above technical solution: retaining rings are respectively arranged on both sides of the outer axial direction of the rotating disk. Through the above technical solution: the retaining rings can stabilize the path of the traction rope.
[0009] As a further description of the above technical solution: there are multiple counterweights.
[0010] Through the above technical solution: multiple weights can cover a wider range of resistance values.
[0011] As a further description of the above technical solution: the multiple installation surfaces of the stepped hole are provided with installation screw holes. Through the above technical solution: many installation stations can install drive devices of different models, and the screw holes are convenient for fixing.
[0012] The utility model has the following beneficial effects:
[0013] Through the function of this device, the driving mechanism of the test can be tested with a long resistance stroke and a large rotation angle. And for the current structure multi-rotation test, a simple and feasible test solution is provided, and the cost of the entire device is low. By designing multiple mounting holes, it can be used for multiple rotating structures; the product of force and lever arm is constant, so the tested product is always in a constant torque loading state, which can better test the performance of the product; the torque is calculated according to the product of force and lever arm, and the test torque gradient can be changed by changing the weight of different mass blocks, and different torque gradient tests can be easily realized. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a three-dimensional diagram of the utility model;
[0015] Figure 2 This is a schematic diagram of the turntable structure of the utility model;
[0016] Figure 3 This is a schematic diagram of the mounting bracket structure of the utility model.
[0017] Legend:
[0018] 1. Base plate; 2. Bearing; 3. Turntable; 4. Test product; 5. Retaining ring; 6. Support bracket; 7. Traction rope; 8. Counterweight; 9. Mounting bracket; 10. Step hole. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] Reference Figure 1 , Figure 2 and Figure 3The utility model provides an embodiment: a passive multi-turn constant torque loading test device, comprising a base plate 1, and a turntable 3 on the base plate 1 arranged by a support bracket 6 and a mounting bracket 9, the turntable 3 is connected to the support bracket 6 and the mounting bracket 9 respectively through a bearing 2, the turntable 3 is located on one side of the support bracket 6, and a mounting bracket 9 is also arranged on the other side of the turntable 3, a traction rope 7 is wrapped around the outer extension of the turntable 3, one end of the traction rope 7 is fixed to the turntable 3, and the other end of the traction rope 7 is connected to a counterweight 8, and the mounting bracket 9 is provided with a stepped hole 10 for installing a test object 4, and the stepped hole 10 corresponds to the rotating shaft of the turntable 3. The traction rope 7 is a steel wire rope or a metal chain. Retaining rings 5 are respectively arranged on both sides of the outer extension axis of the turntable 3. There are multiple counterweights 8. Multiple mounting surfaces of the stepped hole 10 are provided with mounting screw holes.
[0021] The specific connection method is: the support bracket 6 and the mounting bracket 9 are fixedly installed on the bottom plate 1 by bolts to form the support part of the structure. The support bracket 6 and the mounting bracket 9 are designed with bearing holes for mounting the bearing 2 for mounting the bearing 2. The turntable 3 is designed with a mounting shaft for the bearing 2, such as Figure 2 As shown. In this way, the turntable 3 can rotate a full circle under the support of the bearing 2 and the two brackets. The outer circle of the turntable 3 is designed with a wire rope installation and fixing hole, which can be used to fix the traction rope 7. At the same time, the outer circumference of the turntable 3 is designed with a retaining ring 5, which mainly forms a track on the outer circle of the turntable 3 so that the traction rope 7 can move around the outer circle. The other end of the traction rope 7 is used to install the counterweight 8. The counterweight 8 is designed with a mounting hole. The center of the turntable is designed with a mounting hole for the output shaft of the tested product 4. The support bracket 6 is designed with a shell mounting hole for the tested product 4.
[0022] Main working principle: For the product loading test process - install the test product 4 in the stepped hole 10 of the mounting bracket 9 by bolts, and the output shaft of the test product 4 is plugged into the center of the turntable 3. When the output shaft of the test product 4 rotates, the turntable 3 is driven to rotate. The torque of the output shaft can be obtained according to the product of the weight of the counterweight 8 and the radius of the turntable 3. The stability and power output performance of the test product can be obtained by observing the state of the counterweight 8 and the turntable 3.
[0023] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A passive multi-turn constant torque loading test device, characterized in that: The invention comprises a base plate (1), and a turntable (3) on the base plate (1) arranged via a support bracket (6) and a mounting bracket (9); the turntable (3) is connected to the support bracket (6) and the mounting bracket (9) respectively via a bearing (2); the turntable (3) is located on one side of the support bracket (6); a mounting bracket (9) is further arranged on the other side of the turntable (3); a traction rope (7) is arranged around the outer extension of the turntable (3); one end of the traction rope (7) is fixed to the turntable (3); the other end of the traction rope (7) is connected to a counterweight (8); the mounting bracket (9) is provided with a stepped hole (10) for mounting a test object (4); the stepped hole (10) corresponds to the rotating shaft of the turntable (3).
2. A passive multi-turn constant torque loading test device according to claim 1, characterized in that: The traction rope (7) is a steel wire rope or a metal chain.
3. A passive multi-turn constant torque loading test device according to claim 1, characterized in that: Securing rings (5) are respectively arranged on both sides of the outer axial direction of the rotating disk (3).
4. A passive multi-turn constant torque loading test device according to claim 1, characterized in that: The counterweight (8) is multiple.
5. A passive multi-turn constant torque loading test device according to claim 2, characterized in that: A plurality of mounting surfaces of the stepped hole (10) are provided with mounting screw holes.