Salt spray environment high-speed pin disc testing machine

Abstract

The utility model provides a salt spray environment high-speed pin disc testing machine, which relates to the technical field of pin disc testing machines, and comprises a base, a motor seat is fixedly arranged on the top surface of the base, a high-speed servo motor is arranged on the surface of the motor seat, a main shaft is arranged at the output end of the high-speed servo motor, a shaft seat is arranged on the surface of the main shaft, and the shaft seat is arranged on the surface of the main shaft. A loading device A is arranged on the top face of the base, a weight is arranged at one end of the loading device A, a lever arm is arranged at the other end of the loading device A. A loading device B is arranged on the top face of the base, and a strain gauge is arranged in the loading device B. The equipment is formed by vertically installing the base, a motor base, a shaft base and other components. The occupied area is reduced, the space utilization rate is improved, friction force is measured through the strain gauges, namely, the friction force drives the strain gauges to deform to obtain data, and friction force and corrosion resistance tests can be conducted on the pin disc through the salt spray box.

Description

Technical Field

[0001] The utility model relates to the technical field of pin - disk testing machines, in particular to a high - speed pin - disk testing machine in a salt - spray environment. Background Technique

[0002] With the progress of technology, the tribology problems of materials under special working conditions have gradually become the key technical problems restricting the development of many important fields such as aerospace, military equipment, and high - speed rail equipment. Among them, the tribology problems under extreme working conditions in special environmental atmospheres are the frontier research contents of the intersection of multiple disciplines such as tribology, materials science, physical chemistry, etc.;

[0003] Chinese Patent Publication No. CN207379898U discloses a pin - disk friction testing machine, which includes a test bench. On the table surface of the test bench, there are a friction disk and a friction pin for carrying out friction tests; the friction disk is driven to rotate by a driving device arranged inside the test bench, and the friction pin is connected to an adjusting device fixed on the test bench and used for adjusting the pressure and position between the friction pin and the friction disk;

[0004] In this existing design, on the one hand, the cross - beam can move along the radial direction of the friction disk, driving the friction pin fixed at the end of the cross - beam to contact different positions on the friction disk, so that the entire disk body of the friction disk can be in contact with the friction pin for pin - disk friction tests, improving the utilization rate of the friction disk. On the other hand, the pressure between the friction pin and the friction disk during the friction test can be controlled by adding or reducing weights in the weight box fixed on the top of the friction pin, and it has a more realistic cutting test simulation function. However, the functions of traditional pin - disk testing machines are relatively single, and it is not convenient to test the data of bearing parts in a salt - spray environment;

[0005] Therefore, a high - speed pin - disk testing machine in a salt - spray environment is designed to solve the above problems. Content of the Utility Model

[0006] The purpose of the utility model is to solve the technical problems put forward in the above - mentioned background technique.

[0007] The utility model adopts the following technical scheme: A high - speed pin - disk testing machine in a salt - spray environment, which includes a base. On the top surface of the base, a motor seat is fixedly installed. On the surface of the motor seat, a high - speed servo motor is arranged. The output end of the high - speed servo motor is provided with a main shaft. On the surface of the main shaft, a shaft seat is arranged. On the top surface of the base, a loading device A is arranged. One end of the loading device A is provided with a weight, and the other end of the loading device A is provided with a lever arm. On the top surface of the base, a loading device B is arranged, and a strain gauge is arranged inside the loading device B.

[0008] Preferably, for a high-speed pin-on-disc testing machine in a salt spray environment of the present utility model, a salt spray box is provided on the top surface of the base. A circulation fan and a heating pipe are arranged inside the salt spray box. A salt spray sprinkler is arranged inside the salt spray box. A salt spray collector is arranged inside the salt spray box. A salt spray purger is arranged inside the salt spray box.

[0009] Preferably, for a high-speed pin-on-disc testing machine in a salt spray environment of the present utility model, the lever arm is inserted into the salt spray box through a groove, and the groove is made of rubber.

[0010] Preferably, for a high-speed pin-on-disc testing machine in a salt spray environment of the present utility model, the loading device A and the loading device B are symmetrically distributed on the top surface of the base, and the loading device A and the loading device B are 2000N and 20N respectively.

[0011] Preferably, for a high-speed pin-on-disc testing machine in a salt spray environment of the present utility model, the salt spray box is sealed by a combination of dynamic sealing with a lip seal and static sealing with an O-ring. One end of the main shaft away from the high-speed servo motor is located inside the salt spray box.

[0012] Preferably, for a high-speed pin-on-disc testing machine in a salt spray environment of the present utility model, the main shaft is made of duplex stainless steel, and the main shaft is connected to the high-speed servo motor through a coupling.

[0013] Preferably, for a high-speed pin-on-disc testing machine in a salt spray environment of the present utility model, the brine outlet of the salt spray sprinkler is a small hole, and the small holes are evenly arranged on the surface of the salt spray sprinkler.

[0014] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.

[0015] 1. In the present utility model, the testing machine equipment is vertically installed by components such as a base, a motor base, and a shaft base, reducing the floor area and improving the space utilization rate. The main shaft is processed from duplex stainless steel, which has good acid and alkali corrosion resistance, meets the requirements of mechanical comprehensive performance, has high machining accuracy, and reliable mechanical performance. The salt spray box is sealed by a combination of dynamic sealing with a lip seal and static sealing with an O-ring, effectively avoiding the impact on the environment caused by salt spray leakage. At the same time, the weight loading method is adopted, divided into two types of loading: 20N and 2000N, reducing the use cost and being convenient to operate. The friction force is measured through a strain gauge, that is, the data is obtained by driving the strain gauge to deform through the friction force. The brine outlet of the salt spray sprinkler is The small holes are evenly arranged in a porous manner to ensure the uniformity of the brine. The test requirements are achieved through the spraying method. The salt mist blower uses a tower sprayer, is equipped with a purification device, and is equipped with a constant temperature device. The salt mist is transported to the salt mist collector through the pressure difference. A heating device is adopted, and the temperature of the salt mist cavity is controlled by circulating the fan and the salt mist cavity. The sealing ring of the lever arm extending into the cavity is a customized sealing ring, which can allow the lever to move up, down, left and right while ensuring good sealing, and ensure the loading of the test force and the measurement of the friction force. Description of the Drawings

[0016] Figure 1 FIG. is a schematic diagram of a high-speed pin-on-disc testing machine in a salt mist environment proposed by the present utility model;

[0017] Figure 2 FIG. is a side view of a high-speed pin-on-disc testing machine in a salt mist environment proposed by the present utility model.

[0018] Legend:

[0019] 1. Base; 2. Motor base; 3. High-speed servo motor; 4. Main shaft; 5. Shaft seat; 6. Loading device A; 7. Weight; 8. Lever arm; 9. Loading device B; 10. Strain gauge; 11. Salt mist chamber; 1101. Circulating fan; 1102. Heating tube; 1103. Salt mist sprayer; 1104. Salt mist collector; 1105. Salt mist blower; 12. Groove. Detailed Embodiment

[0020] In order to more clearly understand the above objects, features and advantages of the present utility model, the present utility model will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0021] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model may be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0022] Embodiment

[0023] Please refer to Figure 1-2 , the present utility model provides a technical solution: a high-speed pin-on-disc testing machine in a salt mist environment, including a base 1, a salt mist chamber 11 is arranged on the top surface of the base 1. The salt mist chamber 11 is sealed by a combination of a lip seal dynamic seal and an O-ring static seal, effectively avoiding the impact on the environment caused by salt mist leakage. One end of the main shaft 4 away from the high-speed servo motor 3 is located inside the salt mist chamber 11. A circulating fan 1101 and a heating tube 1102 are arranged inside the salt mist chamber 11. A salt mist sprayer 1103 is arranged inside the salt mist chamber 11. The brine outlet of the salt mist sprayer 1103 is Small holes are evenly distributed on the surface of the salt sprayer 1103. The porous structure is evenly distributed to ensure the uniformity of the brine. The test requirements are met through the spraying method. A salt mist collector 1104 is arranged inside the salt fog chamber 11, and a salt mist purger 1105 is arranged inside the salt fog chamber 11. A motor base 2 is fixedly installed on the top surface of the base 1. A high-speed servo motor 3 is arranged on the surface of the motor base 2. The output end of the high-speed servo motor 3 is equipped with a main shaft 4. The main shaft 4 is made of duplex stainless steel, which has good acid and alkali corrosion resistance, meets the requirements of mechanical comprehensive performance, has high machining accuracy, and reliable mechanical performance. The main shaft 4 is connected to the high-speed servo motor 3 through a coupling 13. A shaft seat 5 is arranged on the surface of the main shaft 4. A loading device A6 is arranged on the top surface of the base 1. The loading device A6 and the loading device B9 are symmetrically distributed on the top surface of the base 1. The loading device A6 and the loading device B9 are 2000N and 20N respectively. One end of the loading device A6 is provided with a weight 7, and the other end of the loading device A6 is provided with a lever arm 8. The lever arm 8 is inserted into the salt fog chamber 11 through a groove 12. The sealing ring of the lever arm 8 extending into the cavity is a customized sealing ring, which can allow the lever arm 8 to move up, down, left and right while ensuring good sealing, so as to ensure the loading of the test force and the measurement of the friction force. The groove 12 is made of rubber. A loading device B9 is arranged on the top surface of the base 1, and a strain gauge 10 is arranged inside the loading device B9.

[0024] Working principle: When in use, firmly connect the lower specimen disk to the main shaft 4, fix the upper test pin to the lever arm 8, hang weights 7 on the loading device A6 and the loading device B9, so that the lever arm 8 drops, and the upper and lower specimens come into contact. Different test force requirements are achieved by hanging weights 7 of different weights. At the same time, the high-speed servo motor 3 drives the main shaft 4 to rotate, and the lower specimen disk rotates with the main shaft 4. The generated frictional force acts on the upper specimen pin, causing the upper specimen pin to have a tendency to move and driving the strain gauge 10 to deform, so as to measure the frictional force. During this period, the temperature is controlled to the required temperature through the circulation fan 1101 and the heating tube 1102. The salt mist purger 1105 blows continuously, and at the same time, the salt sprayer 1103 sprays once every once in a while. Then the data of the pin and disk can be measured.

[0025] The above is only a preferred embodiment of the present invention, and it is not intended to limit the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A high-speed pin-on-disc testing machine for salt spray environment, comprising a base (1), characterized in that: A motor base (2) is fixedly installed on the top surface of the base (1). A high-speed servo motor (3) is arranged on the surface of the motor base (2). A main shaft (4) is installed at the output end of the high-speed servo motor (3). A shaft seat (5) is arranged on the surface of the main shaft (4). A loading device A (6) is arranged on the top surface of the base (1). One end of the loading device A (6) is provided with a weight (7), and the other end of the loading device A (6) is provided with a lever arm (8). A loading device B (9) is arranged on the top surface of the base (1), and a strain gauge (10) is arranged inside the loading device B (9).

2. The salt spray environment high-speed pin-on-disc testing machine according to claim 1, wherein: A salt spray box (11) is arranged on the top surface of the base (1). A circulation fan (1101) and a heating pipe (1102) are arranged inside the salt spray box (11). A salt spray sprinkler (1103) is arranged inside the salt spray box (11). A salt spray collector (1104) is arranged inside the salt spray box (11). A salt spray purger (1105) is arranged inside the salt spray box (11).

3. The high-speed pin-on-disc testing machine in a salt spray environment according to claim 2, characterized in that: The lever arm (8) is inserted into the salt spray box (11) through a groove (12), and the groove (12) is made of rubber material.

4. The high-speed pin-on-disc testing machine in a salt spray environment according to claim 3, wherein: The loading device A (6) and the loading device B (9) are symmetrically distributed on the top surface of the base (1), and the loading device A (6) and the loading device B (9) are 2000N and 20N respectively.

5. The salt spray environment high-speed pin-on-disc testing machine according to claim 4, characterized in that: The salt spray box (11) is sealed by a combination of dynamic lip seal and static O-ring seal. One end of the main shaft (4) away from the high-speed servo motor (3) is located inside the salt spray box (11).

6. The salt spray environment high-speed pin-on-disc testing machine according to claim 5, characterized in that: The main shaft (4) is made of duplex stainless steel, and the main shaft (4) is connected to the high-speed servo motor (3) through a coupling (13).

7. The high-speed pin-on-disc testing machine for salt spray environment according to claim 6, wherein: The brine outlet of the salt sprayer (1103) is a small hole, and the small holes are evenly arranged on the surface of the salt sprayer (1103).

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