CN215910275U - Pressure high temperature fatigue performance detection testing machine in bellows compensator - Google Patents
Pressure high temperature fatigue performance detection testing machine in bellows compensator Download PDFInfo
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- CN215910275U CN215910275U CN202121631389.1U CN202121631389U CN215910275U CN 215910275 U CN215910275 U CN 215910275U CN 202121631389 U CN202121631389 U CN 202121631389U CN 215910275 U CN215910275 U CN 215910275U
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Abstract
The utility model discloses a testing machine for detecting the internal pressure high-temperature fatigue performance of a corrugated pipe compensator, which comprises an upper cover plate and a lower cover plate which are connected through a plurality of stand columns, wherein a fatigue testing device is arranged between the upper cover plate and the lower cover plate, and a temperature control device is arranged outside the fatigue testing device; the fatigue testing device comprises two fixed chucks which are oppositely arranged, the two fixed chucks are respectively connected with one ends of two tested corrugated pipes, the other ends of the two tested corrugated pipes are connected with a push plate of the push-pull device, and the two fixed chucks are fixedly connected through a connecting rod; the fixed chuck at the lower part is connected with the free end of the lower platform lifting fixing device; the push-pull device is matched with a main oil cylinder fixed on the upper cover plate; the pressure testing system is used for providing medium pressure to the interior of the tested corrugated pipe. The utility model has simple structure, convenient installation and wide application range, and effectively solves the problem that no special equipment for carrying out corresponding high-temperature test exists in the prior art.
Description
Technical Field
The utility model belongs to the technical field of detection devices, and particularly relates to a testing machine for detecting internal pressure high-temperature fatigue performance of a corrugated pipe compensator.
Background
According to the related requirements of the latest 'general technical conditions for metal corrugated pipe expansion joints', the corrugated pipe with the temperature within the material creep temperature range is designed, and when the fatigue test is carried out, the fatigue test is carried out on a special high-temperature fatigue test device. However, at present, no special internal pressure high temperature fatigue performance testing machine exists in China, and the testing can only be performed on original common equipment, so that the testing result is inaccurate, and the use and the design of the metal corrugated pipe are influenced. Therefore, it is necessary to design a testing machine for testing the internal pressure and high temperature fatigue performance of a bellows compensator to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a testing machine for detecting the internal pressure high-temperature fatigue performance of a corrugated pipe compensator, which aims to solve the problems in the prior art.
In order to achieve the purpose, the technical scheme of the utility model is as follows: the utility model provides a pressure high temperature fatigue performance testing machine in bellows compensator which characterized in that: the device comprises an upper cover plate and a lower cover plate which are connected through a plurality of stand columns, wherein a fatigue testing device is arranged between the upper cover plate and the lower cover plate, and a temperature control device is arranged outside the fatigue testing device; the fatigue testing device comprises two fixed chucks which are oppositely arranged, the two fixed chucks are respectively connected with one ends of two tested corrugated pipes, the other ends of the two tested corrugated pipes are connected with a push plate of the push-pull device, and the two fixed chucks are fixedly connected through a connecting rod; the fixed chuck at the lower part is connected with the free end of the lower platform lifting fixing device; the push-pull device is matched with a main oil cylinder fixed on the upper cover plate;
the temperature control device comprises a heat preservation cover, and a heating device and a temperature sensor are arranged in the heat preservation cover; the pressure testing system is used for providing medium pressure to the interior of the tested corrugated pipe and communicated with the interior of the corrugated pipe.
Further: the heat preservation cover is of a two-petal structure and is connected in a matched mode through a lock catch, a support is arranged on each petal of heat preservation cover, and the supports are matched with the guide rails on the lower cover plate in a sliding connection mode.
Further: the fixed chuck is provided with radial T-shaped grooves, the T-shaped grooves are arranged in a shape like a Chinese character 'mi', clamping jaws are connected in the T-shaped grooves in a sliding mode, and the clamping jaws are driven by a servo motor with a lead screw.
Further: the hydraulic lifting platform is characterized by further comprising a pump station with a hydraulic valve, wherein the pump station is respectively communicated with the main oil cylinder and the lower platform lifting fixing device through oil pipes.
Further: a fan is also arranged in the heat-insulating cover.
Further: and a displacement sensor is arranged on the push-pull device.
The beneficial effects of the structure of the utility model are: the utility model has simple structure, convenient installation and wide application range. In the whole testing process, the temperature is well controlled, the temperature environment during fatigue testing is ensured, and the technical problem that no corresponding testing equipment exists in the prior art is solved. The evaluation accuracy of the performance of the corrugated pipe is improved, and the quality of the product and the basis during design are improved conveniently.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention.
Description of reference numerals:
the device comprises a main oil cylinder 1, a push-pull device 2, a corrugated pipe 3, a heating device 4, a heat-insulating cover 6, a temperature sensor 7, a lower platform lifting fixing device 8, an upper cover plate 9, an upright post 10, a pressure testing system 11, a lower cover plate 12, a fan 13, a support 14, a displacement sensor 15, a hydraulic valve 16, a pump station 17, a fixing chuck 18 and a guide rail 19.
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, but the following examples are only illustrative of the present invention and do not represent the scope of the present invention as defined by the claims.
Detailed Description
As shown in figure 1, the utility model discloses a testing machine for detecting the internal pressure high-temperature fatigue performance of a corrugated pipe compensator, which is characterized in that: the device comprises an upper cover plate 9 and a lower cover plate 12 which are connected through a plurality of upright posts 10, wherein the lower cover plate is fixed on a rack or the ground, a fatigue testing device is arranged between the upper cover plate 9 and the lower cover plate 12, and a temperature control device is arranged outside the fatigue testing device; the fatigue testing device comprises two fixed chucks 18 which are oppositely arranged, the two fixed chucks 18 are respectively connected with one ends of two tested corrugated pipes 3, the other ends of the two tested corrugated pipes 3 are connected with a push plate of the push-pull device 2, the push plate is in a flange shape, the middle of the push plate is provided with a hole so as to be beneficial to the stable hydraulic pressure in the two corrugated pipes, and the two fixed chucks 18 are fixedly connected through a connecting rod; the fixed chuck 18 at the lower part is connected with the free end of the lower platform lifting fixing device 8, and the lower platform lifting fixing device 8 is fixed on the rack or the ground; the push-pull device 2 is matched with a main oil cylinder 1 fixed on an upper cover plate 9, and a push plate on the push-pull device is driven to move up and down through the extension and contraction of the main oil cylinder; the temperature control device is used for controlling the temperature of the fatigue testing device so as to realize performance detection under the high-temperature condition, and comprises a heat preservation cover 6, wherein a heating device 4 and a temperature sensor 7 are arranged in the heat preservation cover; the device also comprises a pressure test system 11 for providing medium pressure to the interior of the tested corrugated pipe, and the pressure test system is communicated with the interior of the corrugated pipe.
Preferably: the heat preservation cover 6 is of a two-piece structure and is connected in a matched mode through a lock catch, a support is arranged on each heat preservation cover 6, the supports are matched with guide rails on the lower cover plate in a sliding mode, and the supports are fixedly connected or hinged to the heat preservation cover.
Preferably: the fixed chuck 18 is provided with radial T-shaped grooves, the T-shaped grooves are arranged in a shape like a Chinese character 'mi', clamping jaws are connected in the T-shaped grooves in a sliding mode, and the clamping jaws are driven by a servo motor with a lead screw, so that the end portion of the corrugated pipe or the fatigue testing device is clamped.
Preferably: the device also comprises a pump station 17 with a hydraulic valve 16, wherein the pump station 17 is respectively communicated with the main oil cylinder 1 and the lower platform lifting fixing device 8 through oil pipes.
Preferably: a fan 13 is arranged in the heat-insulating cover 6, so that the temperature in the heat-insulating cover can be kept uniform and can be reduced when needed.
Preferably: a displacement sensor 15 is provided on the push-pull arrangement.
The working process of the structure of the utility model is as follows:
firstly, mounting a pressing blind plate at one end of two corrugated pipe test pieces, respectively mounting the other end of the two corrugated pipe test pieces at two sides of a push plate of a push-pull device 2 to enable the two corrugated pipes to form a closed structure with communicated inner parts, finally putting the whole on a lower platform lifting fixing device 8, clamping the whole by a chuck, then connecting the push-pull device 2 with a main oil cylinder 1, transmitting the power of the main oil cylinder 1 to the push plate by the push-pull device 2 to enable the push plate to lift and operate to drive the two corrugated pipes to alternatively compress or stretch, adjusting the fatigue reciprocating operation state of the corrugated pipes in no-load, moving a bracket 14 to the corrugated pipes after the state is adjusted, moving the bracket back and forth on a guide rail 19 (namely, inwards or outwards perpendicular to the paper surface in the drawing), closing a heat-insulation pressure-resistant shell 6 to form a sealing shape, starting a temperature control system, controlling the operation of a heater and a fan, and heating the interior of the heat-insulation pressure-resistant shell 6 to a required temperature, and starting the pressure testing system 11, passing gas or liquid in the corrugated pipe to the required testing pressure, and starting timing or counting fatigue times through a counter until the test is finished after the push plate runs, the temperature control system and the pressure testing system meet the requirements.
Claims (6)
1. The utility model provides a pressure high temperature fatigue performance testing machine in bellows compensator which characterized in that: the device comprises an upper cover plate (9) and a lower cover plate (12) which are connected through a plurality of upright posts (10), wherein a fatigue testing device is arranged between the upper cover plate (9) and the lower cover plate (12), and a temperature control device is arranged outside the fatigue testing device;
the fatigue testing device comprises two fixed chucks (18) which are oppositely arranged, the two fixed chucks (18) are respectively connected with one ends of two tested corrugated pipes (3), the other ends of the two tested corrugated pipes (3) are connected with a push plate of the push-pull device (2), and the two fixed chucks (18) are fixedly connected through a connecting rod;
the fixed chuck (18) at the lower part is connected with the free end of the lower platform lifting fixing device (8); the push-pull device (2) is matched with a main oil cylinder (1) fixed on an upper cover plate (9);
the temperature control device comprises a heat preservation cover (6), and a heating device (4) and a temperature sensor (7) are arranged in the heat preservation cover;
the device also comprises a pressure test system (11) for providing medium pressure to the interior of the tested corrugated pipe, and the pressure test system is communicated with the interior of the corrugated pipe.
2. The bellows compensator internal pressure high temperature fatigue performance detection testing machine of claim 1, characterized in that: the heat-insulating cover (6) is of a two-petal structure and is connected in a matched mode through a lock catch, a support is arranged on each petal of heat-insulating cover (6), and the supports are matched with a guide rail on the lower cover plate in a sliding connection mode.
3. The bellows compensator internal pressure high temperature fatigue performance detection testing machine of claim 1, characterized in that: the fixed chuck (18) is provided with radial T-shaped grooves, the T-shaped grooves are arranged in a shape like a Chinese character 'mi', clamping jaws are connected in the T-shaped grooves in a sliding mode, and the clamping jaws are driven by a servo motor with a lead screw.
4. The bellows compensator internal pressure high temperature fatigue performance detection testing machine of claim 1, characterized in that: the device is characterized by further comprising a pump station (17) with a hydraulic valve (16), wherein the pump station (17) is communicated with the main oil cylinder (1) and the lower platform lifting fixing device (8) through oil pipes.
5. The bellows compensator internal pressure high temperature fatigue performance detection testing machine of claim 1, characterized in that: a fan (13) is also arranged in the heat-preserving cover (6).
6. The bellows compensator internal pressure high temperature fatigue performance detection testing machine of claim 1, characterized in that: a displacement sensor (15) is arranged on the push-pull device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121631389.1U CN215910275U (en) | 2021-07-19 | 2021-07-19 | Pressure high temperature fatigue performance detection testing machine in bellows compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121631389.1U CN215910275U (en) | 2021-07-19 | 2021-07-19 | Pressure high temperature fatigue performance detection testing machine in bellows compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215910275U true CN215910275U (en) | 2022-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121631389.1U Active CN215910275U (en) | 2021-07-19 | 2021-07-19 | Pressure high temperature fatigue performance detection testing machine in bellows compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215910275U (en) |
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2021
- 2021-07-19 CN CN202121631389.1U patent/CN215910275U/en active Active
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