Friction-wear testing machine
By designing a friction wear tester including a rotating assembly and a reciprocating movement mechanism, the shortcomings of existing equipment in terms of force transmission stability and motion forms are solved, and the continuity and accuracy of multiple friction experiments are achieved, thus reducing the complexity and cost of equipment.
Patent Information
- Application Number
- CN202420809837.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-18
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-04-18
AI Technical Summary
The existing friction and wear test machines are prone to losses due to vibration during the transmission process, and cannot guarantee the stability of the transmission of force, and cannot complete various forms of motion, with complex structure and high cost.
A friction wear tester including a rotating assembly and a reciprocating movement mechanism is designed to reduce frictional loss between components through a column structure, and use a torque sensor to read torque data to realize two friction experiments: reciprocating and slewing.
In the friction experiments of reciprocating and slewing, the data transmission continuity of force is achieved, which reduces measurement errors, meets the experimental needs of various forms of motion, and reduces the complexity and cost of the equipment.
Smart Images
Figure CN222599431U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of test devices, and particularly relates to a friction and wear testing machine. Background Art
[0002] Friction and wear phenomena are common in mechanical equipment. The friction and wear performance of key moving parts therein will seriously affect the service performance and life of the equipment. It is very necessary to test the friction and wear performance of the friction pair materials of these parts.
[0003] In the prior art, during the operation of common testing machines, the process of transmitting force will be lost due to vibration, which cannot ensure the stability of force transmission, and cannot complete various motion forms. The structure is complex and the cost is expensive. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a friction and wear testing machine, and its advantages are as follows: The testing machine in the utility model can perform two friction experiments of reciprocating and rotating. The columnar structure reduces the loss of friction force between components and reduces the measurement error of the force sensor.
[0005] The above technical purpose of the utility model is achieved through the following technical solutions: A friction and wear testing machine includes four foot cups and a base arranged on the four foot cups. A rotating component and a reciprocating moving mechanism are symmetrically arranged on the base. A lower column is threadedly connected between the rotating component and the reciprocating moving mechanism on the base, and a friction experiment component is arranged on the lower column;
[0006] The friction experiment component includes a torque sensor connected to the lower column. A support frame in a "C" shape is arranged on the top side of the torque sensor. A friction rod is hinged on the support frame. One end of the friction rod is threadedly connected with a weight through a threaded rod. A friction head is connected through a connecting rod near the other end of the friction rod;
[0007] When the weight is above the rotating component, the friction head is above the reciprocating moving mechanism.
[0008] Through the above technical solution, when a friction experiment needs to be carried out on a square specimen, the square specimen is fixed by a reciprocating moving mechanism, weights are installed on the threaded rod, so that the friction head is in contact with the square specimen, the reciprocating moving mechanism is driven, the reciprocating moving mechanism drives the square specimen to move left and right reciprocally, the friction head and the square specimen form a point contact, a certain magnitude of force is applied vertically, and a number of long strip-shaped abrasion marks are formed on the surface of the square specimen; similarly, when a friction experiment needs to be carried out on a circular specimen, the lower column is disassembled, rotated 180° and reinstalled, the rotating assembly is driven, the rotating assembly drives the circular specimen to rotate, and then a number of circular abrasion marks are formed on the surface of the circular specimen. During the above experimental process, the torque data is directly read through the torque sensor, so as to ensure the continuity of the force data transmission and meet the requirements of friction experiments in both reciprocating and rotating forms.
[0009] The present utility model is further provided that: the rotating assembly includes a stepping motor fixedly connected to the base, a rotating shaft is coaxially connected to the output end of the stepping motor, and a ball plate clamp is connected to the end of the rotating shaft, and the ball plate clamp is used for clamping circular objects.
[0010] The present utility model is further provided that: the ball plate clamp is a fixed cylinder.
[0011] The present utility model is further provided that: the reciprocating moving mechanism includes a linear motor fixedly connected to the base, and a square clamp is arranged on the linear motor, and the square clamp is used for clamping square objects.
[0012] The present utility model is further provided that: the square clamp is a clamping seat having a "C" - shaped structure.
[0013] The present utility model is further provided that: an anti - slip pad is connected to the bottom of the foot cup, and anti - slip lines are densely arranged on the bottom side of the anti - slip pad.
[0014] In summary, when a friction experiment needs to be carried out on a square specimen, the square specimen is fixed by a reciprocating moving mechanism, weights are installed on the threaded rod, so that the friction head is in contact with the square specimen, the reciprocating moving mechanism is driven, the reciprocating moving mechanism drives the square specimen to move left and right reciprocally, the friction head and the square specimen form a point contact, a certain magnitude of force is applied vertically, and a number of long strip - shaped abrasion marks are formed on the surface of the square specimen; similarly, when a friction experiment needs to be carried out on a circular specimen, the lower column is disassembled, rotated 180° and reinstalled, the rotating assembly is driven, the rotating assembly drives the circular specimen to rotate, and then a number of circular abrasion marks are formed on the surface of the circular specimen. During the above experimental process, the torque data is directly read through the torque sensor, so as to ensure the continuity of the force data transmission and meet the requirements of friction experiments in both reciprocating and rotating forms. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1It is a schematic diagram of the overall structure of this embodiment;
[0016] Figure 2 It is a side view of this embodiment;
[0017] Figure 3 It is a top view of this embodiment.
[0018] Reference numerals: 1, foot cup; 2, base; 3, stepper motor; 4, ball plate fixture; 5, threaded rod; 6, weight; 7, friction rod; 8, support frame; 9, connecting rod; 10, friction head; 11, square fixture; 12, linear motor; 13, torque sensor; 14, lower column. Detailed implementation manners
[0019] The present utility model will be further described in detail below with reference to the accompanying drawings.
[0020] Embodiment: Referring to Figure 1-3 As shown, a friction and wear testing machine includes four foot cups 1 and a base 2 provided on the four foot cups 1. A rotating assembly and a reciprocating movement mechanism are symmetrically provided on the base 2. A lower column 14 is threadedly connected between the rotating assembly and the reciprocating movement mechanism on the base 2. A friction experiment assembly is provided on the lower column 14. The friction experiment assembly includes a torque sensor 13 connected to the lower column 14. A support frame 8 in a "C" - shaped structure is provided on the top side of the torque sensor 13. A friction rod 7 is hinged on the support frame 8. One end of the friction rod 7 is threadedly connected with a weight 6 through a threaded rod 5. A friction head 10 is connected through a connecting rod 9 near the other end of the friction rod 7. When the weight 6 is above the rotating assembly, the friction head 10 is above the reciprocating movement mechanism. The rotating assembly includes a stepper motor 3 fixedly connected to the base 2. A rotating shaft is coaxially connected to the output end of the stepper motor 3. A ball plate fixture 4 is connected to the end of the rotating shaft. The ball plate fixture 4 is used for clamping circular objects. The reciprocating movement mechanism includes a linear motor 12 fixedly connected to the base 2. A square fixture 11 is provided on the linear motor 12. The square fixture 11 is used for clamping square objects;
[0021] Specifically, when a friction experiment needs to be carried out on a square specimen, the square specimen is fixed by the square fixture 11. Weights 6 are installed on the threaded rod 5 so that the friction head 10 is in contact with the square specimen. Then, the linear motor 12 is driven. The linear motor 12 drives the square specimen to move left and right reciprocally. The friction head 10 forms a point contact with the square specimen, and a certain amount of force is applied vertically to form several long strip-shaped abrasion marks on the surface of the square specimen. Similarly, when a friction experiment needs to be carried out on a circular specimen, the lower column 14 is removed, rotated 180° and reinstalled. The circular object is fixed by the ball disc fixture 4. The stepping motor 3 is driven. The stepping motor 3 drives the rotating shaft to rotate, and the rotating shaft drives the circular specimen to rotate, thereby forming several circular abrasion marks on the surface of the circular specimen. During the above experimental process, the torque data is directly read through the torque sensor 13, thus ensuring the continuity of the force data transmission and meeting the requirements of friction experiments in two forms of reciprocating and rotating.
[0022] Furthermore, the ball disc fixture 4 is a fixed cylinder, and the square fixture 11 is a clamping seat with a "C" - shaped structure. The circular specimen is firmly fixed by the fixed cylinder, and the clamping seat can quickly and conveniently clamp the square specimen.
[0023] Furthermore, an anti - slip pad is connected to the bottom of the foot cup 1. The bottom side of the anti - slip pad is densely covered with anti - slip lines. The anti - slip pad and the anti - slip lines cooperate with each other to increase the friction between the foot cup 1 and the ground, and thus place the friction experiment device more stably, improving the accuracy of the experimental results.
[0024] Operation steps: When a friction experiment needs to be carried out on a square specimen, the square specimen is fixed by the square fixture 11. Weights 6 are installed on the threaded rod 5 so that the friction head 10 is in contact with the square specimen. Then, the linear motor 12 is driven. The linear motor 12 drives the square specimen to move left and right reciprocally. The friction head 10 forms a point contact with the square specimen, and a certain amount of force is applied vertically to form several long strip - shaped abrasion marks on the surface of the square specimen. Similarly, when a friction experiment needs to be carried out on a circular specimen, the lower column 14 is removed, rotated 180° and reinstalled. The circular object is fixed by the ball disc fixture 4. The stepping motor 3 is driven. The stepping motor 3 drives the rotating shaft to rotate, and the rotating shaft drives the circular specimen to rotate, thereby forming several circular abrasion marks on the surface of the circular specimen. During the above experimental process, the torque data is directly read through the torque sensor 13, thus ensuring the continuity of the force data transmission and meeting the requirements of friction experiments in two forms of reciprocating and rotating. The circular specimen is firmly fixed by the fixed cylinder, the clamping seat can quickly and conveniently clamp the square specimen, the anti - slip pad and the anti - slip lines cooperate with each other to increase the friction between the foot cup 1 and the ground, and thus place the friction experiment device more stably, improving the accuracy of the experimental results.
[0025] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.
Claims
1. A friction and wear testing machine, characterized in that: It includes four feet cups (1) and a base (2) provided on the four feet cups (1). A rotating assembly and a reciprocating movement mechanism are symmetrically provided on the base (2). A lower upright column (14) is threadedly connected between the rotating assembly and the reciprocating movement mechanism on the base (2). A friction experiment assembly is provided on the lower upright column (14). The friction experiment assembly includes a torque sensor (13) connected to the lower upright column (14). A support frame (8) in a "C" - shaped structure is provided on the top side of the torque sensor (13). A friction rod (7) is hinged on the support frame (8). One end of the friction rod (7) is threadedly connected with a weight (6) through a threaded rod (5). A friction head (10) is connected through a connecting rod (9) near the other end of the friction rod (7). When the weight (6) is above the rotating assembly, the friction head (10) is above the reciprocating movement mechanism.
2. A friction and wear testing machine according to claim 1, characterized in that: The rotating assembly includes a stepping motor (3) fixedly connected to the base (2). A rotating shaft is coaxially connected to the output end of the stepping motor (3). A ball - disc fixture (4) is connected to the end of the rotating shaft. The ball - disc fixture (4) is used for clamping circular objects.
3. A friction and wear testing machine according to claim 2, characterized in that: The ball - disc fixture (4) is a fixed cylinder.
4. A friction and wear testing machine according to claim 1, characterized in that: The reciprocating movement mechanism includes a linear motor (12) fixedly connected to the base (2). A square fixture (11) is provided on the linear motor (12). The square fixture (11) is used for clamping square objects.
5. A friction and wear testing machine according to claim 4, characterized in that: The square fixture (11) is a clamping seat in a "C" - shaped structure.
6. A friction and wear testing machine according to claim 1, characterized in that: The bottom of the feet cup (1) is connected with an anti - slip pad, and the bottom side of the anti - slip pad is densely covered with anti - slip lines.