CN219532793U - Sealing material sliding friction wear performance detection device - Google Patents
Sealing material sliding friction wear performance detection device Download PDFInfo
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- CN219532793U CN219532793U CN202222256790.2U CN202222256790U CN219532793U CN 219532793 U CN219532793 U CN 219532793U CN 202222256790 U CN202222256790 U CN 202222256790U CN 219532793 U CN219532793 U CN 219532793U
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Abstract
The utility model relates to the technical field of gas sealing parts, in particular to a device for detecting sliding friction and wear properties of a sealing material. The device comprises a frame, a linear speed control assembly and a pressure control assembly, wherein the linear speed control assembly comprises a driving motor, a rotating speed torque measuring instrument and a test ring, the driving motor is fixedly connected to the frame, the rotating speed torque measuring instrument is arranged at the output end of the driving motor, and the test ring is fixedly connected to the output end of the driving motor; the pressure control assembly comprises a control frame and a weight piece, wherein the control frame is arranged on the frame, the weight piece is arranged on the control frame, the weight piece forces the control frame to be abutted to the test ring, and an experiment area for placing the block-shaped sealing piece is formed between the control frame and the test ring. The utility model has the effect of improving the accuracy of detecting the wear resistance of the sealing element.
Description
Technical Field
The utility model relates to the technical field of gas sealing parts, in particular to a device for detecting sliding friction and wear properties of a sealing material.
Background
The seal is a material or part of a component part that prevents leakage of fluid or solid particles from between adjacent joint surfaces and prevents intrusion of foreign matter such as dust and moisture into the interior of the machine. The sealing elements are of two types, namely dynamic sealing and static sealing. For dynamic seals, the sliding frictional wear properties of the seal material are critical.
The existing testing method standard GB/T3960 is relatively fixed in pressure and speed, and can only test the sliding friction and wear performance of a material under one condition, so that the sliding friction and wear performance overall of the material cannot be measured. The test method standard GB/T3960 is characterized in that the outer diameter of the test ring is small, the test sample is long, the abrasion increases, the contact area between the test sample and the test ring increases, and the pressure intensity under the same load decreases. Thus, the sliding friction wear performance of the same sealing material can be greatly different under different working conditions, especially different pressures and speeds.
Disclosure of Invention
In order to improve the detection accuracy of the sealing material, the utility model provides a device for detecting the sliding friction and wear properties of the sealing material.
The utility model provides a device for detecting sliding friction and wear properties of a sealing material, which adopts the following technical scheme:
the device comprises a frame, a linear speed control assembly and a pressure control assembly, wherein the linear speed control assembly comprises a driving motor, a rotating speed torque measuring instrument and a test ring, the driving motor is fixedly connected to the frame, the rotating speed torque measuring instrument is arranged at the output end of the driving motor, and the test ring is fixedly connected to the output end of the driving motor;
the pressure control assembly comprises a control frame and a weight piece, the control frame is arranged on the frame, the weight piece is arranged on the control frame, the weight piece forces the control frame to be abutted to the test ring, and an experiment area for placing a block sample is formed between the control frame and the test ring.
When it is desired to test the seal, the worker may first cut the seal into pieces, then place the pieces in the test area, and then give the seal a specified pressure through the weight.
And then, the driving motor is started, and the driving motor can drive the test ring to rotate at a specified linear speed, so that the sealing element is rubbed. After the appointed time, the staff can compare the quality of the sealing piece before and after the test, and the smaller the quality difference is, the better the wear resistance is.
Compared with the abrasion-resistant testing method of the sealing element in the background art, when the abrasion-resistant testing method of the utility model is adopted, a worker can only cut the sealing element into blocks to carry out abrasion-resistant testing, the pressure of the abrasion-resistant testing is controlled by the weight part, and the linear speed of the abrasion-resistant testing is controlled by the driving motor and the rotating speed torque measuring instrument, so that the speed V and the pressure P can be regulated in a large range, and the sliding friction abrasion performance data can be measured at different speeds V and pressures P, thus the sliding friction abrasion performance overall appearance of the material can be obtained.
In addition, the outer diameter of the test ring is increased, the length of the test sample is reduced, so that the pressure acted on the test sample is basically unchanged in the test process under the same load, and the accuracy of detecting the wear resistance of the sealing element is further improved.
Optionally, the counterweight comprises a weight tray and weights, the weight tray is arranged on the control frame, and the weights are arranged on the weight tray.
Through adopting above-mentioned technical scheme, when needs provide pressure to the sealing member, the staff can place the weight of different quantity in the weight dish according to the demand to the control degree of difficulty of staff to pressure is effectively reduced.
Optionally, the counterweight further comprises a limiting shaft fixedly connected to the weight tray, a placing groove is formed in the weight in a penetrating mode, and the limiting shaft penetrates through the placing groove.
Through adopting above-mentioned technical scheme, when needs place the weight on the weight dish, the staff can be direct wears to locate the standing groove with spacing axle in to make spacing axle carry out spacingly to the weight through the standing groove, effectively reduce the weight and take place the possibility that drops.
Optionally, the control frame includes butt portion, rotary part and the counter weight portion that link to each other in proper order, rotary part rotate connect in the frame, the experimental region by butt portion with experimental ring forms, spacing axle rotate connect in on the counter weight portion.
Through adopting above-mentioned technical scheme, when needs provide pressure with the sealing member, the staff can be at first place the weight on the weight dish, and at this moment, the counter weight portion forces the butt portion to take place to rotate through rotation portion under the effect of weight to with the sealing member with certain pressure butt on experimental ring, the operation degree of difficulty when effectively reducing to place the sealing member, stability of sealing member when effectively improving test wear resistance.
Optionally, the length of the weight portion is greater than the length of the abutment portion.
Through adopting above-mentioned technical scheme, because the length of counter weight portion is greater than the length of butt portion, so when placing the weight on the weight dish, the control frame can produce leverage to impel the staff can provide great pressure to the sample under the condition of adding a small amount of weights, further reduce the operation degree of difficulty when detecting the sealing member.
Optionally, the frame includes base and liquid reserve tank, driving motor fixed connection in on the base, experimental ring with the equal holding of butt portion is in the liquid reserve tank, rotation part rotate connect in the outer wall of liquid reserve tank.
Through adopting above-mentioned technical scheme, when needs carry out wet milling test to the sample, the staff can be artifical with medium liquid filling to the liquid reserve tank in, and then the sealing member alright carry out wet milling detection operation in the medium liquid. When the dry grinding test is needed to be carried out on the sample, a worker can discharge the medium liquid out of the liquid storage tank, and then the sealing piece can carry out dry grinding operation under the air, so that the functionality of the test sample sliding friction and wear performance detection device is effectively increased.
Optionally, the lower terminal surface fixedly connected with fluid-discharge tube of liquid reserve tank, be provided with control valve on the fluid-discharge tube.
Through adopting above-mentioned technical scheme, when need carry out dry-milling operation to the sealing member, the staff can open control valve, and the medium liquid in the liquid reserve tank can directly flow out through the fluid-discharge tube under the action of gravity afterwards to effectively reduce the operation degree of difficulty with medium liquid discharge liquid reserve tank.
Optionally, a control groove is formed in the side wall of the liquid storage tank in a penetrating mode, and a cover door is arranged in the control groove.
Through adopting above-mentioned technical scheme, owing to the setting of control groove, so when needs carry out wear-resisting test to the sample, the staff can directly place the sample in the experimental region through the control groove, effectively reduces the operation degree of difficulty of the wear resistance of test sample. When the sealing element is required to be subjected to wet grinding test, a worker can fix the cover door in the control groove, so that the possibility that the medium liquid flows out of the control groove is effectively reduced.
Optionally, a thermometer is arranged in the liquid storage tank, and a measurement end of the thermometer faces the experimental area.
Through adopting above-mentioned technical scheme, when carrying out wear-resisting test to the sealing member, the device can be through the automatic real-time temperature variation who records the experiment area of thermometer.
In summary, the present utility model includes at least one of the following beneficial technical effects:
1. when the sliding friction and wear performance testing method is adopted, a worker can only cut a sample into blocks to perform the sliding friction and wear performance test, the pressure of the sliding friction and wear performance test is controlled through the weight piece, and the linear speed of the sliding friction and wear performance test is controlled through the driving motor and the rotating speed torque measuring instrument, so that the accuracy of detecting the sliding friction and wear performance of the sample is improved;
2. when the sealing element is required to be subjected to wet grinding test, a worker can manually fill the medium liquid into the liquid storage tank, and then the sealing element can be subjected to wet grinding detection operation in the medium liquid.
3. When the sealing element is required to be subjected to dry grinding test, a worker can discharge the medium liquid out of the liquid storage tank, and then the sealing element can be subjected to dry grinding operation under the air.
Drawings
Fig. 1 is a schematic structural view of a seal material sliding frictional wear performance detecting device.
Fig. 2 is a schematic view of a partial explosion of the sealing material sliding frictional wear performance detecting device.
Fig. 3 is a schematic view of the structure of the linear velocity control assembly and the pressure control assembly.
Reference numerals illustrate: 1. a frame; 2. a linear velocity control assembly; 3. a pressure control assembly; 11. a base; 12. a liquid storage tank; 21. a driving motor; 22. a rotational speed torque meter; 23. a test loop; 31. a control rack; 32. a weight member; 33. an experimental area; 121. a liquid discharge pipe; 122. a control valve; 123. a control groove; 124. a cover door; 125. a thermometer; 311. an abutting portion; 312. a rotating part; 313. a weight part; 321. a weight tray; 322. a weight; 323. a limiting shaft; 324. and (5) placing a groove.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-3.
The embodiment of the utility model discloses a device for detecting sliding friction and wear properties of a sealing material. Referring to fig. 1, the sealing material sliding frictional wear performance detecting device includes a frame 1, a linear velocity control assembly 2 and a pressure control assembly 3, and the linear velocity control assembly 2 and the pressure control assembly 3 are disposed on the frame 1.
Referring to fig. 1 and 2, the frame 1 includes a base 11 and a tank 12 fixed to each other, and the linear velocity control assembly 2 includes a driving motor 21, a rotational speed torque meter 22, and a test ring 23. The driving motor 21 and the rotational speed and torque measuring instrument 22 are fixedly connected to the upper end surface of the base 11, and the rotational speed and torque measuring instrument 22 is sleeved on an output shaft of the driving motor 21. The test ring 23 is fixedly connected to an end of an output shaft of the driving motor 21, and the test ring 23 is accommodated in the liquid storage tank 12.
Referring to fig. 2 and 3, the pressure control assembly 3 includes a control frame 31 and a weight 32, wherein the control frame 31 includes an abutment portion 311, a rotation portion 312, and a weight portion 313 fixed in order, and the length of the weight portion 313 is greater than the length of the abutment portion 311. The rotating portion 312 is rotatably connected to an outer wall of the liquid storage tank 12, and the weight 32 is disposed at an end of the weight 313 away from the rotating portion 312. The abutting portion 311 is accommodated in the liquid storage tank 12, and an experiment area 33 for placing the block seal is formed between one end of the abutting portion 311 away from the rotating portion 312 and the experiment ring 23.
The weight 32 includes a weight tray 321, a weight 322, and a limiting shaft 323, wherein one end of the limiting shaft 323 is fixedly connected to the center of the weight tray 321, and the other end of the limiting shaft 323 is rotatably connected to one end of the weight 313 away from the rotating portion 312. The weight 322 is placed on the weight tray 321, and the weight 322 is provided with a placing groove 324, and a limiting shaft 323 is arranged in the placing groove 324 in a penetrating mode.
Of course, in other embodiments, the weight 32 may further include only the weight tray 321 and the weight 322, wherein the weight tray 321 is fixedly connected to an upper end surface of the end of the weight portion 313 away from the rotating portion 312, and the weight 322 is disposed on the upper end surface of the weight tray 321.
When it is desired to perform a dry-wear test on the test specimen, the worker may cut the test specimen into pieces and then place the pieces in the test area 33. A different number of weights 322 are then placed in the weight tray 321, depending on the pressure required, at which point the weights 322 provide the specified pressure to the seal by leverage from the control frame 31.
The operator then turns on the drive motor 21 and the tachometer 22 controls the rotational speed of the drive motor 21 to cause the test loop 23 to rub the test specimen at a specified linear velocity and automatically record the coefficient of friction and its changes. Finally, after the appointed time, staff can compare the quality of the samples before and after the test, and the smaller the quality difference is, the better the dry abrasion resistance is.
When the wet abrasion resistance test is required for the sample, the staff can fill the liquid storage tank 12 with a medium liquid such as oil, water and the like according to the requirement. The sample is then polished in a medium liquid with reference to the specific step of dry grinding. Finally, after the specified time, the staff can compare the quality of the samples before and after the test, and the smaller the quality difference is, the better the wet abrasion resistance is.
With continued reference to fig. 2 and 3, there is some operational difficulty in draining the media or assembling the seal due to the placement of the tank 12. Therefore, in this embodiment, the drain pipe 121 is fixedly connected to the lower end surface of the liquid storage tank 12, and the control valve 122 is installed on the drain pipe 121, so that when the medium liquid needs to be drained, a worker can directly open the control valve 122 to control.
The sidewall of the liquid storage tank 12 is provided with a control groove 123 in a penetrating way, and a cover door 124 is detachably connected in the control groove 123, so that when a sample needs to be assembled, a worker can open the cover door 124 to assemble. In addition, when the wet abrasion resistance test is performed on the sample, the worker can close the cover door 124, so that the possibility that the medium liquid flows out of the control tank 123 is effectively reduced.
In addition, in order to know the temperature change of the sample in the test process in real time, in this embodiment, the thermometer 125 is further installed in the oil storage tank, and the temperature measuring end of the thermometer 125 faces the test area 33, and when the sample is subjected to the sliding friction wear performance test, the temperature of the test area 33 can be recorded in real time through the thermometer 125.
In this embodiment, the above-mentioned fixed connection may be implemented by conventional fixed connection methods such as integral molding, welding, and bolting. The rotary connection can be realized by adopting a conventional rotary connection mode such as pin shaft connection and the like according to actual selection. The detachable connection mode can be a conventional detachable connection mode such as embedding, clamping and the like according to actual selection.
The implementation principle of the device for detecting the sliding friction and wear properties of the sealing material provided by the embodiment of the utility model is as follows:
when a dry-wear resistance test is desired for the seal, the worker may cut the test specimen into pieces and then place the pieces in the test area 33. A different number of weights 322 are then placed in the weight tray 321, depending on the pressure required, at which point the weights 322 provide the specified pressure to the seal by leverage from the control frame 31.
The operator then turns on the drive motor 21 and the tachometer 22 controls the rotational speed of the drive motor 21 to cause the test loop 23 to rub the test specimen at a specified linear velocity and automatically record the coefficient of friction and its changes. Finally, after the specified time, the staff can compare the quality of the sealing piece before and after the test, and the smaller the quality difference is, the better the dry abrasion resistance is.
When the wet abrasion resistance test is required for the sample, the staff can fill the liquid storage tank 12 with a medium liquid such as oil, water and the like according to the requirement. The sample is then polished in a medium liquid with reference to the specific step of dry grinding. Finally, after the specified time, the staff can compare the quality of the samples before and after the test, and the smaller the quality difference is, the better the wet abrasion resistance is.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (9)
1. The utility model provides a sealing material sliding friction wear performance detection device which characterized in that: the device comprises a frame (1), a linear speed control assembly (2) and a pressure control assembly (3), wherein the linear speed control assembly (2) comprises a driving motor (21), a rotating speed torque measuring instrument (22) and a test ring (23), the driving motor (21) is fixedly connected to the frame (1), the rotating speed torque measuring instrument (22) is arranged at the output end of the driving motor (21), and the test ring (23) is fixedly connected to the output end of the driving motor (21);
the pressure control assembly (3) comprises a control frame (31) and a counterweight (32), wherein the control frame (31) is arranged on the frame (1), the counterweight (32) is arranged on the control frame (31), the counterweight (32) forces the control frame (31) to be abutted to the test ring (23), and an experimental area (33) for placing a block sample is formed between the control frame (31) and the test ring (23).
2. The sealing material sliding frictional wear performance detecting apparatus according to claim 1, wherein: the weight piece (32) comprises a weight tray (321) and weights (322), the weight tray (321) is arranged on the control frame (31), and the weights (322) are arranged on the weight tray (321).
3. The sealing material sliding frictional wear performance detecting apparatus according to claim 2, wherein: the counterweight (32) further comprises a limiting shaft (323) fixedly connected to the weight tray (321), a placing groove (324) is formed in the weight (322) in a penetrating mode, and the limiting shaft (323) penetrates through the placing groove (324).
4. The sealing material sliding frictional wear performance detecting apparatus according to claim 3, wherein: the control frame (31) comprises an abutting part (311), a rotating part (312) and a counterweight part (313) which are sequentially connected, the rotating part (312) is rotationally connected to the frame (1), the experiment area (33) is formed by the abutting part (311) and the experiment ring (23), and the limiting shaft (323) is rotationally connected to the counterweight part (313).
5. The sealing material sliding frictional wear performance detecting apparatus according to claim 4, wherein: the length of the weight portion (313) is greater than the length of the abutment portion (311).
6. The sealing material sliding frictional wear performance detecting apparatus according to claim 4, wherein: the rack (1) comprises a base (11) and a liquid storage tank (12), the driving motor (21) is fixedly connected to the base (11), the test ring (23) and the abutting part (311) are contained in the liquid storage tank (12), and the rotating part (312) is rotationally connected to the outer wall of the liquid storage tank (12).
7. The sealing material sliding frictional wear performance detecting apparatus according to claim 6, wherein: the lower end face of the liquid storage tank (12) is fixedly connected with a liquid discharge pipe (121), and a control valve (122) is arranged on the liquid discharge pipe (121).
8. The sealing material sliding frictional wear performance detecting apparatus according to claim 6, wherein: the side wall of the liquid storage tank (12) is provided with a control groove (123) in a penetrating mode, and a cover door (124) is arranged in the control groove (123).
9. The sealing material sliding frictional wear performance detecting apparatus according to claim 6, wherein: a thermometer (125) is arranged in the liquid storage tank (12), and the measuring end of the thermometer (125) faces the experiment area (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222256790.2U CN219532793U (en) | 2022-08-24 | 2022-08-24 | Sealing material sliding friction wear performance detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222256790.2U CN219532793U (en) | 2022-08-24 | 2022-08-24 | Sealing material sliding friction wear performance detection device |
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| Publication Number | Publication Date |
|---|---|
| CN219532793U true CN219532793U (en) | 2023-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222256790.2U Active CN219532793U (en) | 2022-08-24 | 2022-08-24 | Sealing material sliding friction wear performance detection device |
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| CN (1) | CN219532793U (en) |
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2022
- 2022-08-24 CN CN202222256790.2U patent/CN219532793U/en active Active
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