CN203414366U - Testing apparatus for measuring rubbing wear of seal ring - Google Patents
Testing apparatus for measuring rubbing wear of seal ring Download PDFInfo
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- CN203414366U CN203414366U CN201320302750.5U CN201320302750U CN203414366U CN 203414366 U CN203414366 U CN 203414366U CN 201320302750 U CN201320302750 U CN 201320302750U CN 203414366 U CN203414366 U CN 203414366U
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Abstract
A testing apparatus for measuring rubbing wear of a seal ring comprises a baseframe, a medium tank, an upper clamp, a lower clamp, a temperature control console, a horizontal reciprocating device, a two-dimensional mobile station and a data acquisition control system, wherein the two-dimensional adjustable mobile station is fixed at the upper part of the baseframe, and a two-dimensional mechanical sensor is mounted at the lower part of the two-dimensional adjustable mobile station; the upper clamp for clamping an upper test piece is fixed on the two-dimensional mechanical sensor; the medium tank is mounted above the horizontal reciprocating device, the lower clamp for clamping a lower test piece is fixed in the medium tank, and the medium tank is filled with a test medium; the horizontal reciprocating device is fixed on the baseframe; the two-dimensional adjustable mobile station, the horizontal reciprocating device and the temperature control console are all electrically connected with the data acquisition control system. The testing apparatus for measuring rubbing wear of the seal ring has the benefits of truly simulating the working condition of the seal ring, synchronously and dynamically acquiring friction force in the test process and accurately analyzing the evolution property and influence rule of the friction interface damage of the seal ring.
Description
Technical field
The utility model relates to a kind of test unit of measuring O-ring seal rubbing wear.
Background technology
The reliability and stability of Sealing Technology have become the key factor of modern flow industrial equipment safety, stable operation.According to having or not relative motion between sealing coupled face, sealing can be divided into two kinds of static seal and motive seals; And press seal role in packoff, there is again dividing of main sealing and auxiliary seal.But no matter as main sealing or auxiliary seal, motive seal, except bearing pressure medium, also must tolerate friction, the wearing and tearing that relative motion causes, to guarantee certain sealing property and the requirements that meets exercise performance.For example, as in the spool of the hydraulic pressure of main sealing, piston in pneumatic linear actuator and the sealing between cylinder barrel, piston rod and cylinder cap and guiding valve and the sealing between valve body and mechanical seal as the O-ring seal of auxiliary seal, these seal elements are often because friction causes surface in contact excessive wear and become the main cause of seal failure.
In mechanical seal, there is the sealing ring of nose balance ability and the auxiliary seal between correlated parts and be in sealing system most important parts except butt-end packing secondary (being primary seal).Along with improving constantly of primary seal performance, as the O-ring seal contact interface friction and wear failure problem of auxiliary seal critical elements, day by day highlight, and directly affect tracing ability and the floatability of sealing ring.At present, it has become the sealing of restriction modern mechanical to the key factor of high reliability, long-life future development.
Friction and wear behavior is an important indicator evaluating encapsulant combination property, and the material property of friction and wear behavior and friction pair, contact condition, interfacial characteristics, lubricating condition and environmental factor etc. are closely related.Yet overwhelming majority research is at present all to utilize finite element simulation calculation or planar line contact to investigate the friction and wear behavior of O-ring seal, these methods have certain limitation.How to carry out exactly the experimental study of O-ring seal rubbing wear, under the military service operating mode that more gears to actual circumstances, the system inner link of study various factors and ring wear characteristic in depth, is the key that discloses O-ring seal tribology micromechanism of damage, controls or slow down harmful wearing and tearing.But at present less from the work of Tribological Test angle research O-ring seal friction and wear behavior, this is the friction and wear behavior under cannot the real working condition of real simulation O-ring seal and lack the testing equipment of a kind of energy rational evaluation O-ring seal rubbing wear owing to existing standard type Tribological Test equipment mainly.
Summary of the invention
In order to solve the problem of the rubbing wear of existing standard type Tribological Test equipment under cannot the real working condition of real simulation O-ring seal, the utility model proposes a kind of can real simulation O-ring seal real working condition and in process of the test synchronous dynamic gather friction force, can analyze more exactly O-ring seal frictional interface Damage Evolution characteristic and affect the test unit of the mensuration O-ring seal rubbing wear of rule.
A kind of test unit of measuring O-ring seal rubbing wear described in the utility model, it is characterized in that: comprise support, media slot, upper fixture, lower clamp, temperature control desk, horizontal reciprocating movement device, two-dimentional adjustable moving platform and data acquisition control system, described two-dimentional adjustable moving platform is fixed on the top of described support, and two-dimentional mechanics sensor is installed in described two-dimentional adjustable moving platform bottom; The upper fixture of test specimen in fixed clamp on described two-dimentional mechanics sensor; Described media slot is arranged on described horizontal reciprocating movement device top, and the lower clamp of test specimen under fixed clamp in described media slot, filling test medium in described media slot; Described horizontal reciprocating movement device is fixed on described support; Described two-dimentional adjustable moving platform, described horizontal reciprocating movement device, described temperature control desk are all electrically connected to described data acquisition control system.
Described upper fixture comprises clamping fixture seat, clamp cap and adjusting bolt, described upper clamping fixture seat and clamp cap are that equal diameter is half-cylindrical by the described adjusting bolt lower surface forming that interfixes, described upper clamping fixture seat is provided with ledge structure at half-cylindrical end face, coordinates form the arc holding tank mating with O-ring seal as upper test specimen with described clamp cap; Described lower test specimen has the perforation semi-cylindrical recesses of mating with upper test specimen vertically.
Described two-dimentional adjustable moving platform comprises vertical slipper, vertical guide rail, down-feed screw, motor vertical, horizontal motor, cross sliding clock, horizontal screw lead and horizontal guide rail, described motor vertical and described horizontal motor are all fixed on the top of described support, and described motor vertical is electrically connected to described data acquisition control system with described horizontal motor; The output terminal of described motor vertical connects the upper end of down-feed screw, and the lower end of described down-feed screw and described vertical slipper are spirally connected; The rear portion of described vertical slipper arranges the guide groove coordinating with described vertical guide rail; Described horizontal guide rail is fixed on described support; The output shaft of described horizontal motor is connected with one end of described horizontal screw lead, and the other end of described horizontal screw lead and described cross sliding clock are spirally connected, and the guide groove that the top of described cross sliding clock arranges coordinates with the horizontal guide rail being fixed on vertical slipper.
Described horizontal reciprocating movement device comprises drive motor, toggle, slide block and side horizontal slide rail, and described drive motor is vertically arranged on support bottom, and described drive motor is connected with described slide block by toggle; Above-mentioned lower clamp is fixed on described slide block by described media slot; Described slide block both sides coordinate with the side horizontal slide rail being fixed on support.
Described temperature control desk built-in heating unit and temperature sensor, heating power supply, described temperature sensor are electrically connected to data acquisition control system respectively, and described temperature control desk is fixed on above-mentioned slide block.
The shape of cross section of described arc holding tank is rectangular, the wire diameter of test specimen is determined and be less than to the size of groove depth and upper test specimen to be measured.
Described lower clamp is placed in the interior central through hole that also passes temperature control desk of described media slot and is fixed on described horizontal reciprocating movement device.
The test method of utilizing test unit of the present utility model to carry out, comprises the following steps:
1) lower test specimen is fixed on lower clamp, and the direction of motion of the central axis of the semi-cylindrical recesses of lower test specimen and horizontal reciprocating movement device is consistent;
2) upper test specimen is embedded after the arc holding tank between upper clamping fixture seat and clamp cap, by adjusting adjusting bolt, control the axial compression rate of upper test specimen and it is fixed on upper fixture; The position of adjusting two-dimentional adjustable moving platform makes the half-cylindrical end face central axis of fixture and the semi-cylindrical recesses central axis of lower test specimen in same vertical plane;
3) in media slot, add test(ing) medium and set test temperature, normal load and friction frequency by control system;
4) the upper test specimen in two-dimentional mechanics sensor dynamic acquisition real-time analysis process of the test and normal load and the tangential force between lower test specimen, and send data to control system, control system is carried out real-time feedback control to the vertical position of two-dimentional adjustable moving platform on the one hand, on guaranteeing, between lower test specimen, remain constant normal load, control system level of control reciprocator is done periodically to-and-fro movement with shift reciprocately and the frequency set on the other hand, make, lower test specimen produces reciprocal rubbing wear, and synchronometer is counted the friction factor between test specimen and lower test specimen in.
The beneficial effects of the utility model are: its surrounding medium of the friction-wear test that this technology completes, test temperature are controlled, between upper and lower test specimen, adopt the camberline way of contact, during test, the axial compression rate of O-ring seal regulates the distance between clamping fixture seat and clamp cap to realize by adjusting bolt, and its compressibility can regulate arbitrarily between 1%～40%; The radial compression rate of O-ring seal is controlled by normal load.Like this, can real simulation O-ring seal and the contact condition of fitted seal parts, simultaneously, normal load and tangential force in two dimension mechanics sensor Real-Time Monitoring process of the test, and send data control system to, and by control system, real-time feedback control is carried out in the vertical position of two-dimentional adjustable moving platform, guarantee to remain between upper and lower test specimen constant normal load, control system by horizontal reciprocating movement device band dynamic seal ring to grinding secondary accurately controlled to-and-fro movement, can realize O-ring seal and the normal load of setting grinding pair, shift reciprocately, sliding speed, fricting movement under the condition such as test temperature and frequency, and synchronous dynamic gathers friction force in process of the test, can analyze more exactly O-ring seal frictional interface Damage Evolution characteristic and affect rule, to disclose the rubbing wear damage mechanism of O-ring seal, for controlling and slowing down the excessive wear that O-ring seal causes because of friction, usability and the life-span of improving water-tight equipment provide more unfailing test foundation.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model.
Fig. 2 is friction pair and adjacent component plan structure schematic diagram in test unit of the present utility model.
Fig. 3 is friction pair and the left TV structure schematic diagram of adjacent component (arrow represents the direction of motion of horizontal reciprocating movement device) in test unit of the present utility model.
Fig. 4 is the three-dimensional exploded perspective view of upper and lower test specimen and upper fixture in test unit of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, further illustrate the utility model
With reference to accompanying drawing:
Embodiment 1 a kind of test unit of measuring O-ring seal rubbing wear described in the utility model, comprise support 1, media slot 2, upper fixture 3, lower clamp 4, temperature control desk 5, horizontal reciprocating movement device 6, two-dimentional adjustable moving platform 7 and data acquisition control system, described two-dimentional adjustable moving platform 7 is fixed on the top of described support 1, and two-dimentional mechanics sensor 71 is installed in described two-dimentional adjustable moving platform 7 bottoms; The upper fixture 3 of test specimen 31 in fixed clamp on described two-dimentional mechanics sensor 71; Described media slot 2 is arranged on described horizontal reciprocating movement device 6 tops, and the lower clamp 4 of test specimen 41 under the described interior fixed clamp of media slot 2, the interior filling test medium 21 of described media slot 2; Described horizontal reciprocating movement device 6 is fixed on described support 1; Described two-dimentional adjustable moving platform 7, described horizontal reciprocating movement device 6, described temperature control desk 5 are all electrically connected to described data acquisition control system.
Described upper fixture 3 comprises clamping fixture seat 32, clamp cap 33 and adjusting bolt 34, described upper clamping fixture seat 32 and clamp cap 33 are that equal diameter is half-cylindrical by described adjusting bolt 34 lower surface forming that interfixes, described upper clamping fixture seat 32 is provided with ledge structure 321 at half-cylindrical end face, coordinates form the arc holding tank mating with O-ring seal as upper test specimen with described clamp cap 33; Described lower test specimen 41 has the perforation semi-cylindrical recesses 411 of mating with upper test specimen 31 vertically.
Described two-dimentional adjustable moving platform 7 comprises vertical slipper 72, vertical guide rail 73, down-feed screw 74, motor vertical 75, horizontal motor 76, cross sliding clock 77, horizontal screw lead 78 and horizontal guide rail 79, described motor vertical 75 and described horizontal motor 76 are all fixed on the top of described support 1, and described motor vertical 75 is electrically connected to described data acquisition control system with described horizontal motor 76; The output terminal of described motor vertical 75 connects the upper end of down-feed screw 74, and the lower end of described down-feed screw 74 and described vertical slipper 72 are spirally connected; The rear portion of described vertical slipper 72 arranges the guide groove coordinating with described vertical guide rail 73; Described horizontal guide rail 79 is fixed on described support 1; The output shaft of described horizontal motor 76 is connected with one end of described horizontal screw lead 78, the other end of described horizontal screw lead 78 and described cross sliding clock 77 are spirally connected, and the guide groove that the top of described cross sliding clock 77 arranges coordinates with the horizontal guide rail 79 being fixed on vertical slipper 72.
Described horizontal reciprocating movement device 6 comprises drive motor 61, toggle 62, slide block 63 and side horizontal slide rail 64, described drive motor 61 is vertically arranged on support 1 bottom, and described drive motor 61 is connected with described slide block 63 by toggle 62; Above-mentioned lower clamp 4 is fixed on described slide block 63 by described media slot 2; Described slide block 63 both sides coordinate with the side horizontal slide rail 64 being fixed on support 1.
Described temperature control desk 5 built-in heating unit and temperature sensors, heating power supply, described temperature sensor are electrically connected to data acquisition control system respectively, and described temperature control desk 5 is fixed on above-mentioned slide block 63.
The shape of cross section of described arc holding tank 34 is rectangular, the wire diameter of test specimen 31 is determined and be less than to the size of groove depth and upper test specimen 31 to be measured.
Described lower clamp 4 is placed in the interior central through hole that also passes temperature control desk 5 of described media slot 2 and is fixed on described horizontal reciprocating movement device 6.
The assay method that embodiment 1 utilizes the test unit of embodiment 1 to carry out, comprises the following steps:
1) lower test specimen is fixed on lower clamp, and the direction of motion of the central axis of the semi-cylindrical recesses of lower test specimen and horizontal reciprocating movement device is consistent;
2) upper test specimen is embedded after the arc holding tank between upper clamping fixture seat and clamp cap, by adjusting adjusting bolt, control the axial compression rate of upper test specimen and it is fixed on upper fixture; The position of adjusting two-dimentional adjustable moving platform makes the half-cylindrical end face central axis of fixture and the semi-cylindrical recesses central axis of lower test specimen in same vertical plane;
3) in media slot, add test(ing) medium and set test temperature, normal load and friction frequency by control system;
4) the upper test specimen in two-dimentional mechanics sensor dynamic acquisition real-time analysis process of the test and normal load and the tangential force between lower test specimen, and send data to control system, control system is carried out real-time feedback control to the vertical position of two-dimentional adjustable moving platform on the one hand, on guaranteeing, between lower test specimen, remain constant normal load, control system level of control reciprocator is done periodically to-and-fro movement with shift reciprocately and the frequency set on the other hand, make, lower test specimen produces reciprocal rubbing wear, and synchronometer is counted the friction factor between test specimen and lower test specimen in.
Content described in this instructions embodiment is only enumerating the way of realization of utility model design; protection domain of the present utility model should not be regarded as only limiting to the concrete form that embodiment states, protection domain of the present utility model is also forgiven those skilled in the art's equivalent technologies means that design can be expected according to the utility model.
Claims (7)
1. a test unit of measuring O-ring seal rubbing wear, it is characterized in that: comprise support, media slot, upper fixture, lower clamp, temperature control desk, horizontal reciprocating movement device, two-dimentional adjustable moving platform and data acquisition control system, described two-dimentional adjustable moving platform is fixed on the top of described support, and two-dimentional mechanics sensor is installed in described two-dimentional adjustable moving platform bottom; The upper fixture of test specimen in fixed clamp on described two-dimentional mechanics sensor; Described media slot is arranged on described horizontal reciprocating movement device top, and the lower clamp of test specimen under fixed clamp in described media slot, filling test medium in described media slot; Described horizontal reciprocating movement device is fixed on described support; Described two-dimentional adjustable moving platform, described horizontal reciprocating movement device, described temperature control desk are all electrically connected to described data acquisition control system.
2. test unit as claimed in claim 1, it is characterized in that: described upper fixture comprises clamping fixture seat, clamp cap and adjusting bolt, described upper clamping fixture seat and clamp cap are that equal diameter is half-cylindrical by the described adjusting bolt lower surface forming that interfixes, described upper clamping fixture seat is provided with ledge structure at half-cylindrical end face, coordinates form the arc holding tank mating with O-ring seal as upper test specimen with described clamp cap; Described lower test specimen has the perforation semi-cylindrical recesses of mating with upper test specimen vertically.
3. test unit as claimed in claim 2, it is characterized in that: described two-dimentional adjustable moving platform comprises vertical slipper, vertical guide rail, down-feed screw, motor vertical, horizontal motor, cross sliding clock, horizontal screw lead and horizontal guide rail, described motor vertical and described horizontal motor are all fixed on the top of described support, and described motor vertical is electrically connected to described data acquisition control system with described horizontal motor; The output terminal of described motor vertical connects the upper end of down-feed screw, and the lower end of described down-feed screw and described vertical slipper are spirally connected; The rear portion of described vertical slipper arranges the guide groove coordinating with described vertical guide rail; Described horizontal guide rail is fixed on described support; The output shaft of described horizontal motor is connected with one end of described horizontal screw lead, and the other end of described horizontal screw lead and described cross sliding clock are spirally connected, and the guide groove that the top of described cross sliding clock arranges coordinates with the horizontal guide rail being fixed on vertical slipper.
4. test unit as claimed in claim 3, it is characterized in that: described horizontal reciprocating movement device comprises drive motor, toggle, slide block and side horizontal slide rail, described drive motor is vertically arranged on support bottom, and described drive motor is connected with described slide block by toggle; Above-mentioned lower clamp is fixed on described slide block by described media slot; Described slide block both sides coordinate with the side horizontal slide rail being fixed on support.
5. test unit as claimed in claim 4, it is characterized in that: described temperature control desk built-in heating unit and temperature sensor, heating power supply, described temperature sensor are electrically connected to data acquisition control system respectively, and described temperature control desk is fixed on above-mentioned slide block.
6. test unit as claimed in claim 2, is characterized in that: the shape of cross section of described arc holding tank is rectangular, the wire diameter of test specimen is determined and be less than to the size of groove depth and upper test specimen to be measured.
7. test unit as claimed in claim 4, is characterized in that: described lower clamp is placed in the interior central through hole that also passes temperature control desk of described media slot and is fixed on described horizontal reciprocating movement device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320302750.5U CN203414366U (en) | 2013-05-29 | 2013-05-29 | Testing apparatus for measuring rubbing wear of seal ring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320302750.5U CN203414366U (en) | 2013-05-29 | 2013-05-29 | Testing apparatus for measuring rubbing wear of seal ring |
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| CN203414366U true CN203414366U (en) | 2014-01-29 |
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| CN201320302750.5U Expired - Fee Related CN203414366U (en) | 2013-05-29 | 2013-05-29 | Testing apparatus for measuring rubbing wear of seal ring |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458468A (en) * | 2014-12-04 | 2015-03-25 | 宁波大学 | Abrasion testing device for boundary surface of mechanical part |
| CN106370539A (en) * | 2016-09-21 | 2017-02-01 | 浙江工业大学 | Testing device with controllable friction interface temperature and quick response function |
| CN107063908A (en) * | 2017-04-11 | 2017-08-18 | 西南交通大学 | A kind of magnetic environment Tribological Test device in controllable horizontal direction magnetic field |
| CN107219137A (en) * | 2017-05-31 | 2017-09-29 | 上海交通大学 | The wear resistance test device of fine blanking die material |
-
2013
- 2013-05-29 CN CN201320302750.5U patent/CN203414366U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458468A (en) * | 2014-12-04 | 2015-03-25 | 宁波大学 | Abrasion testing device for boundary surface of mechanical part |
| CN106370539A (en) * | 2016-09-21 | 2017-02-01 | 浙江工业大学 | Testing device with controllable friction interface temperature and quick response function |
| CN107063908A (en) * | 2017-04-11 | 2017-08-18 | 西南交通大学 | A kind of magnetic environment Tribological Test device in controllable horizontal direction magnetic field |
| CN107063908B (en) * | 2017-04-11 | 2019-09-17 | 西南交通大学 | A kind of magnetic environment tribological test device in controllable horizontal direction magnetic field |
| CN107219137A (en) * | 2017-05-31 | 2017-09-29 | 上海交通大学 | The wear resistance test device of fine blanking die material |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20170529 |