Vacuum spiral track friction-wear testing machine

Abstract

The utility model provides a vacuum spiral track friction wear testing machine, which relates to the technical field of wear testing machines, and comprises a machine body, a vacuum cabin arranged on the top surface of the machine body, an electric control cabinet arranged in the machine body, a display arranged on the top surface of the machine body, and an industrial personal computer arranged on the surface of the machine body, a temperature measuring terminal is arranged on the back face of the vacuum chamber, an air inlet and outlet angle valve is arranged on the back face of the vacuum chamber, an ionization gauge is arranged on the surface of the air inlet and outlet angle valve, a resistance gauge is arranged on the surface of the air inlet and outlet angle valve, and a mechanical pump is arranged on the back face of the machine body. The test ball can be tested in a vacuum state, the test effect of lubricating oil in the vacuum state can be conveniently tested, the base, the locking nut and the guide disc are arranged, the guide disc can be conveniently replaced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wear testing machines, in particular to a vacuum spiral track friction and wear testing machine. Background Art

[0002] The vacuum spiral track friction and wear testing machine, also known as a lubricating oil anti-wear testing machine, is a high-quality portable anti-wear testing machine. This testing machine uses standard weights for loading and utilizes the principle of a lever to make a high-hardness steel ring at the friction point rub against steel balls. Two different lubricating oils are filled into the oil boxes equipped with the machine respectively for friction comparison tests. The anti-wear performance of the lubricating oil can be clearly judged according to the weight of the weights, the current displayed by the ammeter, and the size of the wear marks on the steel ring and steel balls.

[0003] In the existing design, common vacuum spiral track friction and wear testing machines can usually only be tested under single environmental conditions, such as dry air under atmospheric pressure, etc., and it is not convenient to test the performance changes under extreme conditions, such as high temperature and high vacuum.

[0004] Therefore, a vacuum spiral track friction and wear testing machine is designed to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the technical problems put forward in the above background art.

[0006] The utility model adopts the following technical scheme: a vacuum spiral track friction and wear testing machine, including a machine body, a vacuum chamber is arranged on the top surface of the machine body, an electrical control cabinet is arranged inside the machine body, a display is arranged on the top surface of the machine body, and an industrial control computer is arranged on the surface of the machine body;

[0007] A temperature measurement terminal is arranged on the back surface of the vacuum chamber, an air inlet and outlet angle valve is arranged on the back surface of the vacuum chamber, an ionization gauge is arranged on the surface of the air inlet and outlet angle valve, a resistance gauge is arranged on the surface of the air inlet and outlet angle valve, a mechanical pump is arranged on the back surface of the machine body, a connecting pipe is installed at the output end of the mechanical pump, the top end of the connecting pipe is connected to a molecular pump, the top end of the molecular pump is connected to a connecting cylinder, a vacuum gate valve is arranged on the surface of the connecting cylinder, and a pressure gauge is arranged on the back surface of the vacuum chamber.

[0008] The top surface of the vacuum chamber is provided with a magnetic sealing shaft, the top end of the magnetic sealing shaft is provided with a speed reduction device, the top end of the inner wall of the vacuum chamber is provided with an upper specimen fixture, the bottom end of the upper specimen fixture is provided with an upper rotating disk, the inside of the vacuum chamber is provided with a fixed block, the top surface of the fixed block is provided with a friction force testing mechanism, the bottom end of the inner wall of the vacuum chamber is provided with a lower specimen fixture, the top end of the lower specimen fixture is provided with a lower rotating disk, the bottom end of the lower specimen fixture is provided with a loading device, and a test ball is arranged between the upper rotating disk and the lower rotating disk;

[0009] The friction force testing mechanism includes a sliding guide rail fixed on the top surface of the fixed block, a base is arranged on the top surface of the sliding guide rail, a piezoelectric sensor is arranged on the surface of the base, a guiding disk is arranged at one end of the piezoelectric sensor, a setscrew is arranged inside the base, and a locking nut is arranged at the top end of the guiding disk.

[0010] As an optimization of the vacuum spiral track friction and wear testing machine of the present utility model, the speed reduction device is driven by a servo motor, and the loading device is driven by a loading motor.

[0011] As an optimization of the vacuum spiral track friction and wear testing machine of the present utility model, a displacement knob is arranged on the surface of the sliding guide rail, and a displacement scale line is arranged on the surface of the displacement knob.

[0012] As an optimization of the vacuum spiral track friction and wear testing machine of the present utility model, the track inside the sliding guide rail is spiral in shape, and an observation window is opened on the surface of the vacuum chamber.

[0013] As an optimization of the vacuum spiral track friction and wear testing machine of the present utility model, the diameters of the upper rotating disk and the lower rotating disk are both 50.8 mm, and the guiding disk is a cylinder with a diameter of 12.7 mm.

[0014] As an optimization of the vacuum spiral track friction and wear testing machine of the present utility model, the surface of the guiding disk is in contact with the surface of the test ball, and the diameter of the test ball is 12.7 mm.

[0015] As an optimization of the vacuum spiral track friction and wear testing machine of the present utility model, the materials of the upper rotating disk, the lower rotating disk, the guiding disk and the test ball are all G102Cr18M stainless steel.

[0016] Compared with the prior art, the advantages and positive effects of the present utility model are that,

[0017] 1. In the present utility model, by providing a vacuum chamber and a friction force testing mechanism, tests can be conducted on the test ball in a vacuum state, facilitating the testing of the lubricating oil in a vacuum state. A base, a locking nut, and a guiding disk are also provided, facilitating the replacement of the guiding disk, so as to obtain data through multiple tests, thereby reducing errors and improving work efficiency. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the vacuum spiral track friction and wear testing machine proposed by the present utility model;

[0019] Figure 2 It is a side view of the vacuum spiral track friction and wear testing machine proposed by the present utility model;

[0020] Figure 3 It is a schematic diagram of the friction force testing mechanism of the vacuum spiral track friction and wear testing machine proposed by the present utility model;

[0021] Figure 4 It is a top view of the vacuum spiral track friction and wear testing machine diagram proposed by the present utility model.

[0022] Legend Explanation:

[0023] 1. Machine body; 101. Temperature measurement terminal; 102. Inlet and outlet gas angle valve; 103. Ionization gauge; 104. Resistance gauge; 105. Mechanical pump; 106. Connecting pipe; 107. Molecular pump; 108. Connecting cylinder; 109. Vacuum gate valve; 110. Pressure gauge;

[0024] 2. Vacuum chamber; 201. Magnetic seal shaft; 203. Reduction device; 204. Upper specimen clamp; 205. Upper rotating disk; 206. Fixed block; 207. Lower specimen clamp; 208. Lower rotating disk; 209. Loading device; 210. Test ball; 211. Servo motor; 212. Loading motor; 213. Observation window;

[0025] 3. Electrical control cabinet; 4. Display; 5. Industrial control computer;

[0026] 6. Friction force testing mechanism; 601. Sliding guide rail; 602. Displacement knob; 603. Base; 604. Piezoelectric sensor; 605. Guiding disk; 606. Set screw; 607. Locking nut; 608. Displacement scale line. Detailed Embodiment

[0027] In order to more clearly understand the above-mentioned objects, features, and advantages of the present utility model, the following further describes the present utility model 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 can be combined with each other.

[0028] In the following description, many specific details are set forth in order to provide a thorough understanding of the present utility model. However, the present utility model may also 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.

[0029] Embodiment

[0030] Please refer to Figures 1-4 , the present utility model provides a technical solution: a vacuum spiral track friction and wear testing machine, which includes a machine body 1. A vacuum chamber 2 is provided on the top surface of the machine body 1. An electrical control cabinet 3 is provided inside the machine body 1. A display 4 is provided on the top surface of the machine body 1. An industrial control computer 5 is provided on the surface of the machine body 1;

[0031] A temperature measurement terminal 101 is provided on the back surface of the vacuum chamber 2. An air inlet and outlet angle valve 102 is provided on the back surface of the vacuum chamber 2. An ionization gauge 103 is provided on the surface of the air inlet and outlet angle valve 102. A resistance gauge 104 is provided on the surface of the air inlet and outlet angle valve 102. A mechanical pump 105 is provided on the back surface of the machine body 1. A connecting pipe 106 is installed at the output end of the mechanical pump 105. The top end of the connecting pipe 106 is connected to a molecular pump 107. The top end of the molecular pump 107 is connected to a connecting cylinder 108. A vacuum gate valve 109 is provided on the surface of the connecting cylinder 108. A pressure gauge 110 is provided on the back surface of the vacuum chamber 2. An observation window 213 is provided on the surface of the vacuum chamber 2;

[0032] A magnetic seal shaft 201 is provided on the top surface of the vacuum chamber 2. A reduction device 203 is provided at the top end of the magnetic seal shaft 201. The reduction device 203 is driven by a servo motor 211. An upper specimen fixture 204 is provided at the top end of the inner wall of the vacuum chamber 2. A lower rotating disk 205 is provided at the bottom end of the upper specimen fixture 204. The diameters of both the upper rotating disk 205 and the lower rotating disk 208 are 50.8 mm. The guide disk 605 is a cylinder with a diameter of 12.7 mm. A fixed block 206 is provided inside the vacuum chamber 2. A friction force testing mechanism 6 is provided on the top surface of the fixed block 206. A lower specimen fixture 207 is provided at the bottom end of the inner wall of the vacuum chamber 2. An upper rotating disk 208 is provided at the top end of the lower specimen fixture 207. A loading device 209 is driven by a loading motor 212. The loading device 209 is provided at the bottom end of the lower specimen fixture 207. A test ball 210 is provided between the upper rotating disk 205 and the lower rotating disk 208;

[0033] The friction force testing mechanism 6 includes a sliding guide rail 601 fixed on the top surface of the fixed block 206. The track inside the sliding guide rail 601 is spiral. A displacement knob 602 is provided on the surface of the sliding guide rail 601, and a displacement scale line 608 is provided on the surface of the displacement knob 602. A base 603 is provided on the top surface of the sliding guide rail 601. A piezoelectric sensor 604 is provided on the surface of the base 603. One end of the piezoelectric sensor 604 is provided with a guide disk 605. The surface of the guide disk 605 is in contact with the surface of the test ball 210. The diameter of the test ball 210 is 12.7 mm. A setscrew 606 is provided inside the base 603. A locking nut 607 is provided at the top end of the guide disk 605. The upper rotating disk 205, the lower rotating disk 208, the guide disk 605 and the test ball 210 are all made of G102Cr18M stainless steel.

[0034] Working principle: In the first test, first lubricate the test ball 210. After lubricating the test ball 210, open the door of the vacuum chamber 2, place the test ball 210 between the upper rotating disk 205 and the lower rotating disk 208, and make the surface of the test ball 210 contact with the guide disk 605. Then drive the loading system through the loading motor 212 to apply the test load. Rotate the rotating disk to make the test ball 210 not contact the guide disk 605. Then close the door of the vacuum chamber 2, and then turn on the mechanical pump 105 to evacuate the vacuum chamber 2. By observing the pressure gauge 110, wait for the vacuum degree in the vacuum chamber 2 to drop. Then the test can be started. After the test is completed, record the number of rotation circles of the test ball 210, and prepare for the second test operation. Reopen the door of the vacuum chamber 2, unload the pressure, remove the test ball 210, place the test ball 210 on the processing tool, then remove the base 603. Then take out the guide disk 605 from the base 603, place the used guide disk 605 on a special fixing rack, and then reinstall a new guide disk 605 into the base 603. Place a gasket at the locking nut 607 to increase the extension length of the guide disk 605, make the guide disk 605 contact the piezoelectric sensor 604, and tighten the base 603. Then place a new lubricated test ball 210 between the upper rotating disk 205 and the lower rotating disk 208 and make it contact the guide disk 605. Then drive the loading system through the loading motor 212 to apply the test load. Rotate the upper rotating disk 205 and the lower rotating disk 208 to make the test ball 210 not contact the guide disk 605. Then close the door of the vacuum chamber 2, turn on the mechanical pump 105 to evacuate the vacuum chamber 2, and then observe the value on the pressure gauge 110 to make the vacuum degree in the vacuum chamber 2 drop. When the test is completed, record the number of rotation circles of the test ball 210 again.

[0035] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model in other forms. Any person skilled in the relevant art may use the technical content disclosed above 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 solution content of the present utility model, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. Vacuum spiral track friction and wear testing machine, comprising a machine body (1), characterized in that: A vacuum chamber (2) is provided on the top surface of the body (1), an electrical control cabinet (3) is provided inside the body (1), a display (4) is provided on the top surface of the body (1), and an industrial control computer (5) is provided on the surface of the body (1); A temperature measurement terminal (101) is provided on the back surface of the vacuum chamber (2), an inlet and outlet angle valve (102) is provided on the back surface of the vacuum chamber (2), an ionization gauge (103) is provided on the surface of the inlet and outlet angle valve (102), a resistance gauge (104) is provided on the surface of the inlet and outlet angle valve (102), a mechanical pump (105) is provided on the back surface of the body (1), a connecting pipe (106) is installed at the output end of the mechanical pump (105), the top end of the connecting pipe (106) is connected to a molecular pump (107), the top end of the molecular pump (107) is connected to a connecting cylinder (108), a vacuum gate valve (109) is provided on the surface of the connecting cylinder (108), and a pressure gauge (110) is provided on the back surface of the vacuum chamber (2); A magnetic sealing shaft (201) is provided on the top surface of the vacuum chamber (2), a reduction device (203) is provided at the top end of the magnetic sealing shaft (201), an upper specimen clamp (204) is provided at the top end of the inner wall of the vacuum chamber (2), an upper rotating disk (205) is provided at the bottom end of the upper specimen clamp (204), a fixed block (206) is provided inside the vacuum chamber (2), a friction force testing mechanism (6) is provided on the top surface of the fixed block (206), a lower specimen clamp (207) is provided at the bottom end of the inner wall of the vacuum chamber (2), a lower rotating disk (208) is provided at the top end of the lower specimen clamp (207), a loading device (209) is provided at the bottom end of the lower specimen clamp (207), and a test ball (210) is provided between the upper rotating disk (205) and the lower rotating disk (208); The friction force testing mechanism (6) includes a sliding guide rail (601) fixed on the top surface of the fixed block (206), a base (603) is provided on the top surface of the sliding guide rail (601), a piezoelectric sensor (604) is provided on the surface of the base (603), a guide disk (605) is provided at one end of the piezoelectric sensor (604), a setscrew (606) is provided inside the base (603), and a locking nut (607) is provided at the top end of the guide disk (605).

2. The vacuum spiral track friction and wear testing machine according to claim 1, characterized in that: The reduction device (203) is driven by a servo motor (211), and the loading device (209) is driven by a loading motor (212).

3. The vacuum spiral orbit friction and wear testing machine according to claim 2, characterized in that: A displacement knob (602) is provided on the surface of the sliding guide rail (601), and a displacement scale line (608) is provided on the surface of the displacement knob (602).

4. The vacuum spiral track friction and wear testing machine according to claim 3, wherein: The track inside the sliding guide rail (601) is spiral-shaped, and an observation window (213) is opened on the surface of the vacuum chamber (2).

5. The vacuum spiral track friction and wear testing machine according to claim 4, characterized in that: The diameters of the upper rotating disk (205) and the lower rotating disk (208) are both 50.8 mm, and the guide disk (605) is a cylinder with a diameter of 12.7 mm.

6. The vacuum spiral orbit friction and wear testing machine according to claim 5, characterized in that: The surface of the guiding disc (605) is in contact with the surface of the test ball (210), and the diameter of the test ball (210) is 12.7 mm.

7. The vacuum spiral track friction and wear testing machine according to claim 6, characterized in that: The materials of the upper rotating disc (205), the lower rotating disc (208), the guiding disc (605), and the test ball (210) are all G102Cr18M stainless steel.

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