CN210347362U - Compensator constant pressure fatigue testing machine - Google Patents
Compensator constant pressure fatigue testing machine Download PDFInfo
- Publication number
- CN210347362U CN210347362U CN201920767532.6U CN201920767532U CN210347362U CN 210347362 U CN210347362 U CN 210347362U CN 201920767532 U CN201920767532 U CN 201920767532U CN 210347362 U CN210347362 U CN 210347362U
- Authority
- CN
- China
- Prior art keywords
- compensator
- vertical plate
- plate
- sealing
- movable plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a compensator constant pressure fatigue testing machine, which comprises a guide pillar, wherein a vertical plate is arranged on the guide pillar, an oil cylinder is fixed on a first vertical plate, a mandrel of the oil cylinder is connected with a push plate, the compensator is arranged oppositely, a sealing movable plate is arranged between two groups of compensators, and the sealing movable plate is connected with the push plate through a connecting rod; one end of the compensator is connected with the second vertical plate or the third vertical plate through a connecting flange, and the other end of the compensator is connected with the sealing movable plate through a sealing flange; and the sealing flange and the sealing movable plate are provided with through holes which are matched with each other. The utility model discloses the device is whole volume unchangeable in the in-process sample that tests the compensator, and pressure does not have the change, has improved the accuracy of test. When the compensator is compressed, the pressure is not required to be overcome to do work, so that the energy is saved, and the service life of the equipment is prolonged. When the compensator is stretched, the compensator cannot be damaged by atmospheric pressure due to the fact that the volume is increased and the pressure is reduced. The pulley reduces the effect of the specimen sagging under the action of gravity.
Description
Technical Field
The utility model belongs to the technical field of the measurement of compensator and specifically relates to a compensator constant voltage fatigue testing machine.
Background
In order to prevent the pipeline from deforming or breaking due to thermal elongation or temperature stress when the heating pipeline is heated, a compensator is required to be arranged on the pipeline to compensate the thermal elongation of the pipeline, so that the stress of the pipeline wall and the acting force acting on the valve member or the bracket structure are reduced. Since the heating compensator is a key component for maintaining continuous heating in the pipeline, and it is usually located at the pipeline joint, and the external situation is complicated, it is important to test each performance index. At present, a series of products such as domestic heat supply compensators and waveform expansion joints are subjected to fatigue detection tests without a special detection testing machine, and only relevant data detection is carried out through general detection equipment such as a universal testing machine. In the actual use process, the compensator is mostly transversely arranged, the interior of the compensator is water pressure, the pressure is basically stable, in the existing test process, the distance between two ends of the compensator is usually increased and reduced through mechanical force, in the process, because water is not easy to compress, the interior of the compensator usually maintains air pressure or normal pressure, and the air pressure can also change when the volume of the compensator changes, so that the accuracy of measurement is influenced. Meanwhile, when the compensator is driven to stretch, the internal pressure of the compensator needs to be overcome to do work, and the energy consumption is large.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a compensator constant voltage fatigue testing machine to solve the problem among the prior art.
The utility model discloses a realize through following technical scheme: a constant-pressure fatigue testing machine for a compensator comprises a guide post, three vertical plates are arranged on the guide post at intervals, an oil cylinder is fixed on a first vertical plate, a mandrel of the oil cylinder penetrates through the first vertical plate and is connected with a push plate positioned between the first vertical plate and a second vertical plate,
the two groups of compensators are symmetrically arranged between the second vertical plate and the third vertical plate, a sealing movable plate is arranged between the two groups of compensators, the sealing movable plate is connected with the push plate through a connecting rod, and the connecting rod penetrates through the second vertical plate;
one end of the compensator is connected with the second vertical plate or the third vertical plate through a connecting flange, and the other end of the compensator is connected with the sealing movable plate through a sealing flange;
and the sealing flange and the sealing movable plate are provided with through holes which are matched with each other.
Further: a pulley is arranged at the lower end of the sealing movable plate; the pulley is provided with a fixed groove matched with the sealing movable plate.
Further: the guide post is provided with threads, and the vertical plate is limited on the guide post through a bolt.
Further: four guide posts are arranged and are positioned at four corners of the vertical plate.
The utility model has the advantages that: 1. the utility model discloses the device is carrying out the in-process that tests to the compensator, and sealed movable plate drives two compensators and compresses or stretch, but holistic volume does not change, and consequently, internal pressure does not have the change, has improved the accuracy of test. 2. When the compensator is compressed, the compensator does not need to overcome pressure to do work, energy is saved, meanwhile, the force reacting on the equipment is also reduced, and the service life of the equipment is prolonged. 3. When the compensator is stretched, the pressure inside the compensator is still unchanged, and the compensator is prevented from being damaged due to extra atmospheric pressure caused by volume increase and pressure reduction. 4. Due to the arrangement of the pulley, the weight of a sample in the testing device is balanced, and the sagging influence of the gravity on the sample is reduced.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural view of the sealing plate of the present invention.
The sequence numbers in the figures illustrate: compensator 1, sealed movable plate 2, connecting rod 3, first riser 4, second riser 5, third riser 6, connecting flange 7, sealed flange 8, coaster 9, guide pillar 10, bolt 11, control system 12, hydro-cylinder 13, dabber 14, push pedal 15, through-hole 16.
Detailed Description
Referring to the attached drawings 1 and 2, the utility model relates to a compensator constant pressure fatigue testing machine, which comprises a guide pillar 10, wherein three vertical plates are arranged on the guide pillar at intervals, the vertical plates can be fixed at different positions of the guide pillar, and the three vertical plates are respectively a first vertical plate 4, a second vertical plate 5 and a third vertical plate 6 from left to right; an oil cylinder 13 is fixed on the first vertical plate, the free end of the oil cylinder, namely a mandrel 14, penetrates through the first vertical plate and is connected with a push plate 15 positioned between the first vertical plate and the second vertical plate, and the oil cylinder is connected with a hydraulic station of a control system 12;
the two groups of compensators 1 are symmetrically arranged between the second vertical plate and the third vertical plate, a movable sealing plate 2 is arranged between the two groups of compensators 1, the movable sealing plate is connected with the push plate through a connecting rod 3, the connecting rod penetrates through the second vertical plate, and the second vertical plate is provided with a through hole 16 matched with the connecting rod;
one end of the compensator is connected with the second vertical plate or the third vertical plate through a connecting flange 7, and the other end of the compensator is connected with the sealing movable plate through a sealing flange 8;
the sealing flange and the sealing movable plate are provided with through holes which are matched with each other, and the through holes enable the interiors of the two compensators to be communicated into a whole.
Preferably: the lower end of the sealing movable plate is provided with a pulley 9 for bearing the weight of the sealing movable plate; the pulley is provided with a fixed groove matched with the edge of the lower part of the sealing movable plate.
Preferably: the guide post is provided with threads, the guide post is connected with a bolt 11 for limiting in a threaded manner, and the vertical plate is limited on the guide post through the bolt.
Preferably: four guide posts are arranged and are positioned at four corners of the vertical plate.
Preferably: and a stress sensor is arranged on the mandrel and used for testing the pushing force or the pulling force of the oil cylinder, namely the stress of the compensator.
The utility model discloses a compensator includes ripple expansion joint compensator, sleeve compensator etc.. The utility model discloses in, flange and compensator be connected, control system, stress transducer, to the examination sample that awaits measuring in pour into hydraulic structure and method etc. be prior art, no longer give unnecessary details in this application. The utility model discloses the connection, including but not limited to modes such as spiro union, welding, sliding connection.
The utility model is used in the process that a workpiece to be tested, namely the two ends of the compensator 1, are respectively connected with a connecting flange 7 and a sealing flange 8, the connecting mode of the flange and the compensator is the same as the prior art, and a through hole is arranged in the middle of the sealing flange, so that the two groups of compensators are communicated into a whole; after the connection, the sealing flanges are respectively fixed on the second vertical plate and the third vertical plate, the sealing flange is positioned between the two sealing flanges, the sealing movable plate is placed between the two sealing flanges, the position of the third vertical plate is adjusted, fastening is carried out simultaneously, and the installation is finished. And after finishing, injecting water pressure into the interior to simulate real working conditions. And after the compensator is installed, the sealing movable plate is connected with the push plate through the connecting rod and fastened by using bolts, and the installation is finished. The reciprocating motion of the oil cylinder is controlled by the control system, and then the reciprocating motion of the sealing movable plate is driven by the push plate, so that the compression and the stretching of the compensator are realized, and the fatigue test is carried out. During installation, the two compensators are usually in a free state (or intermediate state, i.e. in a stretchable and compressible state) or in a stretched state and in a compressed state, so that when the sealing movable plate moves, any one compensator can realize the process from compression to stretching, and the two compensators are in an opposite state of stretching one and compressing the other.
The utility model has the advantages that: 1. in the process of testing the compensator, the sealing movable plate drives the two compensators to compress or stretch, but the whole volume is basically unchanged; therefore, the pressure in the compensator is unchanged, the influence of the reciprocating motion on the sample can be accurately measured, and the test accuracy is improved. 2. When the compensator is compressed, the compensator does not need to overcome pressure to do work, energy is saved, meanwhile, the force reacting on the equipment is also reduced, and the service life of the equipment is prolonged. 3. When the compensator is stretched, the pressure inside the compensator is still unchanged, and the compensator is prevented from being damaged due to extra atmospheric pressure caused by volume increase and pressure reduction. 4. Due to the arrangement of the pulley, the weight of a sample in the testing device is balanced, and the influence of the sagging of the sample under the action of gravity on a testing result is reduced. 5. The test sample is transversely placed and is the same as the real working condition, and the test result is more accurate.
Claims (4)
1. The utility model provides a compensator constant voltage fatigue testing machine which characterized in that: the compensator comprises a guide pillar, three vertical plates are arranged on the guide pillar at intervals, an oil cylinder is fixed on the first vertical plate, a mandrel of the oil cylinder penetrates through the first vertical plate and is connected with a push plate positioned between the first vertical plate and the second vertical plate, two groups of compensators are arranged and are symmetrically arranged between the second vertical plate and the third vertical plate, a sealing movable plate is arranged between the two groups of compensators, the sealing movable plate is connected with the push plate through a connecting rod, and the connecting rod penetrates through the second vertical plate; one end of the compensator is connected with the second vertical plate or the third vertical plate through a connecting flange, and the other end of the compensator is connected with the sealing movable plate through a sealing flange; and the sealing flange and the sealing movable plate are provided with through holes which are matched with each other.
2. The compensator constant voltage fatigue testing machine as claimed in claim 1, wherein: a pulley is arranged at the lower end of the sealing movable plate; the pulley is provided with a fixed groove matched with the sealing movable plate.
3. The compensator constant voltage fatigue testing machine as claimed in claim 1, wherein: the guide post is provided with threads, and the vertical plate is limited on the guide post through a bolt.
4. The compensator constant voltage fatigue testing machine as claimed in claim 1, wherein: four guide posts are arranged and are positioned at four corners of the vertical plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920767532.6U CN210347362U (en) | 2019-05-27 | 2019-05-27 | Compensator constant pressure fatigue testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920767532.6U CN210347362U (en) | 2019-05-27 | 2019-05-27 | Compensator constant pressure fatigue testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210347362U true CN210347362U (en) | 2020-04-17 |
Family
ID=70183238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920767532.6U Active CN210347362U (en) | 2019-05-27 | 2019-05-27 | Compensator constant pressure fatigue testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210347362U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110132771A (en) * | 2019-05-27 | 2019-08-16 | 沈阳仪表科学研究院有限公司 | Compensator constant pressure fatigue tester |
| CN113188888A (en) * | 2021-04-21 | 2021-07-30 | 西安恒热热力技术有限责任公司 | Detection equipment and detection method for detecting pressure resistance of compensator |
-
2019
- 2019-05-27 CN CN201920767532.6U patent/CN210347362U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110132771A (en) * | 2019-05-27 | 2019-08-16 | 沈阳仪表科学研究院有限公司 | Compensator constant pressure fatigue tester |
| CN113188888A (en) * | 2021-04-21 | 2021-07-30 | 西安恒热热力技术有限责任公司 | Detection equipment and detection method for detecting pressure resistance of compensator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107607390B (en) | Variable-temperature tension-torsion composite load material mechanical property in-situ test device and method | |
| CN104132805A (en) | Multifunctional pneumatic reciprocating sealing performance test bench | |
| CN210347362U (en) | Compensator constant pressure fatigue testing machine | |
| CN108519291B (en) | High-temperature stretching-fatigue mechanical property tester and method based on electric cylinder driving | |
| CN203551383U (en) | In-situ testing instrument for micromechanical property of material under multi-load and multi-physical field coupling action | |
| CN110243513A (en) | Ball screw assembly, efficiency detection device | |
| CN102269675B (en) | Biaxial tensile testing device with thirdly directional stress provided by fluid pressure and application thereof | |
| CN209878482U (en) | Device for testing fatigue mechanical properties of material under tensile-bending composite load | |
| CN103175743A (en) | Multifunctional shear apparatus for asphalt pavement | |
| CN105136356A (en) | Testing machine of interface pressure of cable accessory | |
| CN103234834B (en) | Loading device used in road seam filling material low-temperature performance test | |
| CN103196758A (en) | Device and method for testing forming property of sheet material under effect of fluid pressure | |
| CN111780957B (en) | Test platform for testing static and dynamic mechanical properties of L-shaped pipeline of aircraft engine | |
| CN113358487A (en) | Device and method for testing high-temperature low-cycle fatigue performance of rotor blade | |
| CN206378363U (en) | Tension compression bidirectional test fixture and queen post dynamometer check system | |
| CN113686524B (en) | Testing device for flexible joint of steel catenary riser and using method of testing device | |
| CN205404143U (en) | Hydraulic system components and parts reliability test device containing environment field | |
| CN104181053A (en) | Device and method for testing plate wrinkling performance under thickness-direction stress | |
| CN112326476A (en) | Testing method and device for rock multi-field coupling rheological test under action of dynamic load | |
| CN111948077A (en) | High-temperature high-pressure composite fretting wear test device | |
| CN103499440A (en) | Multifunctional testing loading detecting machine for horizontal sleeve compensator | |
| CN203595603U (en) | Multifunctional test loading detection machine of horizontal sleeve compensator | |
| CN203587454U (en) | Vertical multi-cylinder loading testing machine | |
| CN105784396A (en) | Hydraulic system component reliability test device and method including environment field | |
| CN203101195U (en) | Multifunctional shear apparatus for bituminous pavement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |