CN113267400A - Horizontal pressure torsion testing device and system - Google Patents
Horizontal pressure torsion testing device and system Download PDFInfo
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- CN113267400A CN113267400A CN202110576077.3A CN202110576077A CN113267400A CN 113267400 A CN113267400 A CN 113267400A CN 202110576077 A CN202110576077 A CN 202110576077A CN 113267400 A CN113267400 A CN 113267400A
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- 238000012360 testing method Methods 0.000 title claims abstract description 52
- 238000003825 pressing Methods 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims description 15
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000002783 friction material Substances 0.000 abstract description 15
- 239000000463 material Substances 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000013522 software testing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/22—Investigating strength properties of solid materials by application of mechanical stress by applying steady torsional forces
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a horizontal pressure torsion testing device, which comprises a pressure applying mechanism and a pressure bearing mechanism which are positioned on the same axial direction; a bearing area of the workpiece to be tested is arranged between the pressure applying mechanism and the pressure bearing mechanism; the pressure-bearing mechanism is provided with a rotating mechanism which can drive the pressure-bearing mechanism to rotate around the axial direction; the axial position of the pressing mechanism is provided with a pressure sensor, and the position of the axial end part contacting with the workpiece is provided with a torsion sensor. The invention simulates the test environment of the fan with heavy load and low speed, can directly give different stress and torsion conditions to the workpiece to be tested, and can detect the material performance of the friction material under various working conditions by matching with software calculation without placing the workpiece to be tested in an actually operated product for testing, thereby improving the test efficiency and avoiding the actually operated product from being influenced by the test.
Description
Technical Field
The invention relates to a force application testing device, in particular to a horizontal pressure torsion testing device and system.
Background
At present, the wind power industry enters the critical period of fan maintenance, and the friction material plays a key role in stabilizing the whole load of the fan, particularly in the process of starting and stopping the fan and yawing the fan. Most of the early fans are made of friction materials imported from foreign countries, and due to the protection of key technologies, domestic substitute products are difficult to approach or reach the imported friction materials in the aspects of material strength, self-lubrication and other properties. As one of the products with the largest consumption in fan maintenance parts, the imported friction material has high price, and although the price of a domestic substitute product is low, the product performance and quality cannot meet the requirements.
In the development of new friction material products, their performance must be verified. And the nominal performance parameters of the friction material generally cannot directly reflect the actually required performance of the fan friction material.
If a new product containing the friction material is directly used for testing the fan unit, on one hand, the performance of the friction material is uncertain, which brings hidden danger to the safe operation of the unit, and the fan owner is difficult to recognize the friction material which can not obtain related data; on the other hand, the manpower, financial resources and experimental period can not meet the requirements: because the process of the experiment is a continuous process, data needs to be frequently replaced and tested, other hidden dangers of the fan unit can be caused by artificial factors, abnormal operation of the fan and the like, the test effect cannot be expected, and the economic loss can be brought to an owner.
Disclosure of Invention
The invention aims to provide horizontal pressure torsion testing equipment and a horizontal pressure torsion testing platform, which are used for simulating a testing environment with heavy load and low speed of a fan, can directly give different stress and torsion conditions to a workpiece to be tested, and can detect basic performance data of a friction material by matching with software calculation so as to solve the technical problems.
The invention adopts the following technical scheme:
a horizontal pressure torsion testing device comprises a pressure applying mechanism 3 and a pressure bearing mechanism 2 which are positioned on the same axial direction; a bearing area of the workpiece to be tested is arranged between the pressure applying mechanism 3 and the pressure bearing mechanism 2; the pressure-bearing mechanism 2 is provided with a rotating mechanism 21 which can drive the pressure-bearing mechanism 2 to rotate around the axial direction; a pressure sensor 33 is provided at a certain axial position of the pressing mechanism 3, and a torsion sensor 36 is provided at a position where an axial end portion contacts the workpiece.
In the technical scheme, a workpiece to be tested is supported by a pressure applying platform, and the pressure applying platform is driven to move towards a pressure bearing platform on the left side of the pressure applying platform leftwards by a hydraulic assembly so as to extrude the workpiece to be tested arranged between the pressure applying platform and the pressure bearing platform, so that test pressure is provided for the workpiece to be tested; the rotating mechanism transmits torque to the pressure-bearing platform through the main shaft, so that the pressure-bearing platform is twisted. At the moment, the tester can obtain the performance of the workpiece to be tested under different stress and torsion conditions, the workpiece to be tested does not need to be placed in a product which is actually operated for testing, the testing efficiency is improved, and the product which is actually operated is prevented from being influenced by the test.
Preferably, the pressing mechanism 3 includes a hydraulic assembly 32, the pressure sensor 33 is disposed on an output shaft of the hydraulic assembly 32, a terminal of the output shaft is vertically connected to the connecting plate 31, and the connecting plate 31 is connected to the pressing platform 34 through a planar thrust bearing 35.
Further, the torque sensor 36 is disposed between the outer convex side of the pressing platform 34 and the convex side of the connecting plate 31.
Further, the pressure-bearing mechanism 2 includes a pressure-bearing platform 22 opposite to the pressure-bearing platform 34, and the normal direction of the pressure-bearing platform 22 is connected with the rotating mechanism 21 through a main shaft 24.
Furthermore, the device also comprises a support frame 1 which is in threaded connection with the lower ends of the pressure applying mechanism 3 and the pressure bearing mechanism 2.
Furthermore, the device also comprises a sliding rod 4 which is parallel to the axial direction, and two ends of the sliding rod 4 are connected with the pressure bearing mechanism 2 and the pressure applying mechanism 3 to play a role in guiding.
Furthermore, the device also comprises a fixing block 41, wherein the fixing block 41 is fixedly connected with two ends of the sliding rod 4.
Furthermore, the pressure sensor 33 is disposed in a gap between the connecting plate 31 and the hydraulic assembly 32, two ends of the pressure sensor 33 are respectively screwed with the connecting plate 31 and the hydraulic assembly 32, and the connecting plate 31 is connected with the hydraulic assembly 32 through the pressure sensor 33.
Further, the main shaft 24 is fixedly connected to the inner side of the pressure bearing platform 22.
Further, the hydraulic assembly 32 includes: the hydraulic shell 327 is fixedly connected with a mechanism part of the pressure applying mechanism 3, and a liquid passage 325, a liquid passage 326 and a sliding cavity which are mutually communicated are arranged on the hydraulic shell 327; the hydraulic ejector rod 323 is arranged in the sliding cavity in a sliding mode and fixedly connected with the pressure sensor 33, and one end of the hydraulic ejector rod 323 extends out of the hydraulic shell 327; the first sealing ring 322 and the second sealing ring 324 are wound on the peripheral wall of the sliding cavity and used for sealing a gap between the sliding cavity and the hydraulic ejector rod 323; and a seal ring stopper 321 that is disposed outside the first seal ring 322 and screwed to the inside of the hydraulic housing 327.
A horizontal pressure torsion measuring system further comprises a control system which is respectively in signal connection with the torque sensor 36, the pressure sensor 33, the rotating mechanism 21 and the hydraulic assembly 32.
The invention has the beneficial effects that: the test environment of the fan heavy load low speed can be directly given to the work piece that awaits measuring different atress and torsion condition, and cooperation software calculates and then can detect the material performance under the various operating modes of friction material, and need not to test the work piece that awaits measuring in the product of actual operation, improves efficiency of software testing, avoids the product of actual operation to receive the influence of test.
Drawings
FIG. 1 is a schematic structural diagram of a horizontal pressure torsion testing apparatus according to the present invention;
fig. 2 is a partial structural schematic view of the rotating mechanism;
fig. 3 is a schematic diagram of a hydraulic assembly.
In the figure:
32. a hydraulic assembly; 327. a hydraulic housing; 325. a liquid passage; 326. a liquid passage; 323. a hydraulic ejector rod; 322. a first seal ring; 324. a second seal ring; 321. a sealing ring baffle ring;
1. a support frame; 2. a pressure-bearing mechanism; 3. a pressure applying mechanism; 4. a slide bar; 21. a rotation mechanism; 22. a pressure-bearing platform; 23. a planar thrust bearing; 24. a main shaft; 31. a connecting plate; 33. a pressure sensor; 34. a pressure-bearing platform; 35. a planar thrust bearing; 36. a torque sensor 41 and a fixed block.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
As shown in fig. 1-3, the present embodiment provides a horizontal pressure torsion testing apparatus for providing a testing pressure to a workpiece to be tested, so that a tester can obtain the performance of the workpiece to be tested under different stress and torsion conditions, in the present embodiment, the workpiece to be tested is a friction material product in a wind turbine generator.
The horizontal pressure torsion testing device comprises a supporting frame 1, a pressure bearing mechanism 2, a pressure applying mechanism 3 and a hydraulic assembly 32. The hydraulic assembly 32 is arranged on the pressing mechanism 3, the output end of the hydraulic assembly 32 is horizontally arranged leftwards, the connecting plate 31 is in transmission connection with the output end of the hydraulic assembly 32, the pressure bearing platforms 22 are arranged on the left side of the pressing platform 34 at intervals, a workpiece to be tested can be arranged between the pressing platform 34 and the pressure bearing platforms 22, and the hydraulic assembly 32 can drive the pressing platform 34 to extrude the workpiece to be tested leftwards so as to provide testing pressure for the workpiece to be tested; wherein, rotary mechanism 21 sets up in the left side of pressure-bearing mechanism 2, is fixed in on the pressure-bearing mechanism, and rotary mechanism 21 drive main shaft 24 realizes the torsion with pressure-bearing platform 22 to provide the test torsional force for the work piece that awaits measuring. The performance of the friction material is detected by the workpiece to be detected under different pressures and torques.
Specifically, the horizontal pressure torsion testing device provided by this embodiment supports the workpiece to be tested through the pressure applying platform 34, and drives the pressure applying platform 34 to move towards the pressure bearing platform 22 on the left side thereof through the hydraulic assembly 32, so as to extrude the workpiece to be tested placed between the pressure applying platform 34 and the pressure bearing platform 22, so as to provide testing pressure for the workpiece to be tested, after the pressure meets the setting requirement, the rotating mechanism 21 transmits the torsion force of the pressure bearing platform 22 through the main shaft 24, at this time, a tester can obtain the performance of the workpiece to be tested under different stress and torsion conditions, and does not need to place the workpiece to be tested in a product in actual operation for testing, so as to improve the testing efficiency, and avoid the product in actual operation from being influenced by the testing.
In this embodiment, referring to fig. 1, the horizontal compression torsion testing apparatus further includes: the device comprises a sliding rod 4, a fixed block 41 and a connecting plate 31, wherein the sliding rod 4 is arranged along the horizontal direction, and two ends of the sliding rod 4 are fixedly connected with a pressure-bearing mechanism 2 and a pressure-applying mechanism 3 through the fixed block 41; the connecting plate 31 is connected with the sliding rod 4 in a sliding mode, the plane thrust bearing 35 is arranged between the pressing platform 34 and the connecting plate 31, and the output end of the hydraulic assembly 32 is in transmission connection with the pressing platform 34 through the connecting plate 31.
With continued reference to fig. 1, four sliding rods 4 are arranged in parallel and respectively arranged at four corners of the connecting plate 31.
Referring to fig. 2, the pressure platform 22 is divided into two halves, a fixed surface and a wear surface, the two halves are detachably connected through bolts, and when the pressure platform 22 needs to be replaced or maintained, the fixed bolts on the pressure platform 22 can be detached, and the wear surface of the pressure platform 22 can be detached and directly taken out. Through the detachable design, the pressure-bearing platform 22 is convenient to take, place and maintain, the replacement and maintenance efficiency is effectively improved compared with the prior art, the service life of the horizontal pressure torsion testing device is prolonged, and the normal use of the horizontal pressure torsion testing device is guaranteed.
Referring to fig. 1, the horizontal pressure torsion testing device further includes a connecting plate 31, a pressure applying platform 34, a pressure sensor 33 and a torsion sensor 36, the connecting plate 31 is slidably connected with the sliding rod 4, the pressure sensors 33 are arranged on the right side of the pressure applying platform 34 at intervals, and the pressure sensor 33 is connected with an output end of the hydraulic assembly 32; the torsion sensor 36 is arranged in a gap between the outer boss side of the pressing platform 34 and the boss of the connecting plate 31, and two ends of the torsion sensor 36 are respectively and vertically connected with the pressing platform 34 and the boss of the connecting plate 31. Specifically, the upper end and the lower end of the torsion sensor 36 are respectively connected with the pressure platform 34 and the connecting plate 31 through bolts, and the torsion sensor 36 is used for measuring the real-time torsion force applied to the workpiece to be measured by the rotating mechanism 21.
As an optional scheme, the horizontal pressure torsion testing device further comprises a guide plate and a position sensor, wherein the guide plate and the slide rod 4 extend in the same direction, and the guide plate is arranged on one side of the slide rod 4; the position sensor is disposed on the guide plate, can slide along the guide plate and is fixed to the guide plate, and the position sensor is used for detecting the elongation of the output end of the hydraulic assembly 32. Specifically, the object to be measured by the position sensor is the pressing platform 34, and by measuring the position of the pressing platform 34, it can be accurately determined whether the hydraulic assembly 32 is actually pressed against the workpiece to be measured by the pressing platform 34, so that the output end of the hydraulic assembly 32 is slowly and stably pressed.
As an alternative, referring to fig. 3, the hydraulic assembly 32 includes a hydraulic housing 327, a hydraulic ejector rod 323, a sealing ring baffle 321, a first sealing ring 322 and a second sealing ring 324, the hydraulic ejector rod 323 is fixedly connected to the pressure sensor 33 through a bolt, and the hydraulic housing 327 is provided with liquid passages 325 and 326 and a sliding cavity which are communicated with each other; the hydraulic ejector rod 323 is arranged in the sliding cavity in a sliding mode, and one end of the hydraulic ejector rod 323 extends out of the hydraulic shell 327; the first sealing ring 322 and the second sealing ring 324 are wound on the peripheral wall of the sliding cavity and used for sealing the gap between the sliding cavity and the hydraulic ejector rod 323; the seal ring retainer 321 is disposed outside the first seal ring 322, and is connected to the hydraulic housing 327 by a thread, so as to enhance the fixation of the first seal ring 322.
In this embodiment, referring to FIG. 1, the hydraulic assembly 32 employs an oil hydraulic cylinder.
In this embodiment, referring to fig. 1, the horizontal pressure torsion testing device further includes a supporting frame 1, the supporting base 1 is disposed at the lower ends of the pressure bearing mechanism 2 and the pressure applying mechanism 3 and is used for supporting the pressure bearing mechanism 2 and the pressure applying mechanism 3, and the supporting frame 1 is fixedly connected with the ground through bolts, so that the stability of the horizontal pressure torsion testing device is improved.
The above are only alternative embodiments of the present invention, and those skilled in the art may make various changes or modifications without departing from the general concept of the present invention, and such changes or modifications should fall within the scope of the appended claims.
Claims (11)
1. The utility model provides a test device is twistd reverse to horizontal pressure which characterized in that:
comprises a pressure applying mechanism (3) and a pressure bearing mechanism (2) which are positioned on the same axial direction;
a bearing area of the workpiece to be tested is arranged between the pressure applying mechanism (3) and the pressure bearing mechanism (2);
the pressure-bearing mechanism (2) is provided with a rotating mechanism (21) which can drive the pressure-bearing mechanism (2) to rotate around the axial direction;
and a pressure sensor (33) is arranged at a certain axial part of the pressing mechanism (3), and a torsion sensor (36) is arranged at the part of the axial end part, which is contacted with the workpiece.
2. The horizontal compression torsion test apparatus of claim 1, wherein: the pressing mechanism (3) comprises a hydraulic assembly (32), the pressure sensor (33) is arranged on an output shaft of the hydraulic assembly (32), the tail end of the output shaft is vertically connected with the connecting plate (31), and the connecting plate (31) is connected with a pressing platform (34) through a plane thrust bearing (35).
3. The horizontal compression torsion test apparatus of claim 2, wherein: the torsion sensor (36) is arranged between the outer boss side of the pressing platform (34) and the boss of the connecting plate (31).
4. The horizontal compression torsion test apparatus of claim 2, wherein: the pressure-bearing mechanism (2) comprises a pressure-bearing platform (22) opposite to the pressure-applying platform (34), and the normal direction of the pressure-bearing platform (22) is connected with the rotating mechanism (21) through a main shaft (24).
5. The horizontal compression torsion test apparatus of claim 4, wherein: the device also comprises a support frame (1) which is in threaded connection with the lower ends of the pressure applying mechanism (3) and the pressure bearing mechanism (2).
6. The horizontal compression torsion test apparatus of claim 2, wherein: the device is characterized by further comprising a sliding rod (4) parallel to the axial direction, wherein two ends of the sliding rod (4) are connected with the pressure bearing mechanism (2) and the pressure applying mechanism (3) to play a role in guiding.
7. The horizontal compression torsion test apparatus of claim 6, wherein: the sliding rod fixing device is characterized by further comprising a fixing and connecting block (41), wherein the fixing and connecting block (41) is fixedly connected with the two ends of the sliding rod (4).
8. A horizontal compression torsion test apparatus according to claim 3, wherein: the pressure sensor (33) is arranged in a gap between the connecting plate (31) and the hydraulic assembly (32), two ends of the pressure sensor (33) are respectively in threaded connection with the connecting plate (31) and the hydraulic assembly (32), and the connecting plate (31) is connected with the hydraulic assembly (32) through the pressure sensor (33).
9. The horizontal compression torsion test apparatus of claim 4, wherein: the main shaft (24) is fixedly connected to the inner side of the pressure-bearing platform (22).
10. The horizontal compression torsion test apparatus of claim 2, wherein:
the hydraulic assembly (32) includes:
the hydraulic shell (327) is fixedly connected with a mechanism part of the pressure mechanism 3, and a liquid passage (325), a liquid passage (326) and a sliding cavity which are communicated with each other are arranged on the hydraulic shell (327);
the hydraulic ejector rod (323) is arranged in the sliding cavity in a sliding mode and fixedly connected with the pressure sensor 33, and one end of the hydraulic ejector rod (323) extends out of the hydraulic shell (327);
the first sealing ring (322) and the second sealing ring (324) are wound on the peripheral wall of the sliding cavity and are used for sealing a gap between the sliding cavity and the hydraulic ejector rod (323);
and the sealing ring retaining ring (321) is arranged on the outer side of the first sealing ring (322) and is in threaded connection with the inner side of the hydraulic shell (327).
11. A horizontal torquement testing system, comprising the horizontal torquement testing device of any one of claims 1-10, and further comprising a control system in signal connection with the torsion sensor (36), the pressure sensor (33), the rotating mechanism (21), and the hydraulic assembly (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110576077.3A CN113267400A (en) | 2021-05-26 | 2021-05-26 | Horizontal pressure torsion testing device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110576077.3A CN113267400A (en) | 2021-05-26 | 2021-05-26 | Horizontal pressure torsion testing device and system |
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| CN113267400A true CN113267400A (en) | 2021-08-17 |
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| CN202110576077.3A Pending CN113267400A (en) | 2021-05-26 | 2021-05-26 | Horizontal pressure torsion testing device and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117450255A (en) * | 2023-12-26 | 2024-01-26 | 沈阳仪表科学研究院有限公司 | Testing device and testing method for double-sided horizontal pressurized sealing |
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| CN108982212A (en) * | 2018-06-05 | 2018-12-11 | 东北大学 | A kind of composite shaft tension and compression, bending, torsion, vibration integrated Testing Platform |
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| CN211453189U (en) * | 2019-11-08 | 2020-09-08 | 杭州应敏科技有限公司 | Insulating rod torsion testing machine |
| CN111811719A (en) * | 2020-08-10 | 2020-10-23 | 昆山赛瑞斯自动化科技有限公司 | Ball screw friction test equipment |
-
2021
- 2021-05-26 CN CN202110576077.3A patent/CN113267400A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012104627A2 (en) * | 2011-01-31 | 2012-08-09 | University Of Leeds | Evaluation apparatus and method |
| CN103528887A (en) * | 2013-10-24 | 2014-01-22 | 吉林大学 | In-situ pull/press-torque combined load material micromechanics test platform |
| CN108332978A (en) * | 2018-02-02 | 2018-07-27 | 昆山万马五金有限公司 | A kind of tension-torsion fatigue test board for Automobile flywheel disk |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117450255A (en) * | 2023-12-26 | 2024-01-26 | 沈阳仪表科学研究院有限公司 | Testing device and testing method for double-sided horizontal pressurized sealing |
| CN117450255B (en) * | 2023-12-26 | 2024-03-15 | 沈阳仪表科学研究院有限公司 | Testing device and testing method for double-sided horizontal pressurized sealing |
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Application publication date: 20210817 |
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