CN210243147U - Constant-force hanger on-site load test structure - Google Patents
Constant-force hanger on-site load test structure Download PDFInfo
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- CN210243147U CN210243147U CN201920896437.6U CN201920896437U CN210243147U CN 210243147 U CN210243147 U CN 210243147U CN 201920896437 U CN201920896437 U CN 201920896437U CN 210243147 U CN210243147 U CN 210243147U
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Abstract
The utility model discloses a constant force gallows field load test structure belongs to a pipeline gallows technical category. In the field load test process of the existing in-service constant-force hanging bracket, the chain block is generally adopted to pull the constant-force hanging bracket to run for the whole stroke, the running displacement of the chain block is not stable, the influence on the precision of load test is large, the weight of the chain block is large, a large height space is needed, the operation is laborious, and more inconvenience is brought to the test work. The utility model discloses a split type two-way plunger hydraulic jack's tensile or shrink control constant force gallows reciprocates at whole stroke within range, and the test data that combines the tensile tester obtains the load data of constant force gallows in each position. The utility model has the advantages of simple and reasonable structure, the installation is all very convenient with the dismantlement, simple operation, labour saving and time saving in the field test process, and hydraulic jack operates steadily, and the test disturbs for a short time, and the result precision is high.
Description
Technical Field
The utility model relates to a constant force gallows field load test structure belongs to a pipeline gallows technical category, and the wide application is in pipe-line systems such as electric power, petrochemical industry and relevant equipment field.
Background
The pipeline supporting and hanging bracket is a main bearing part of the pipeline, and in order to strictly ensure that the performance of the supporting and hanging bracket meets the use requirement, relevant specifications have definite regulations on the load performance of the supporting and hanging bracket, but the performance of the supporting and hanging bracket inevitably has certain degradation along with the increase of the operation time, and particularly for a constant-force hanging bracket, the output load of the constant-force hanging bracket is obviously changed along with the relaxation of a spring, so that the performance test of the supporting and hanging bracket in service is very necessary.
For the field load test of the in-service constant-force hanger, in order to obtain the load data in the whole stroke, the constant-force hanger needs to be pulled to run for the full stroke, at present, a chain block is generally adopted as a force application part, and the following defects exist in the process: 1) the operation displacement of the chain block is not stable, and particularly, during initial pulling, large impact force exists, so that the precision of a load test is greatly influenced; 2) for the hanging bracket with larger load, the required tonnage of the chain block is also larger, the corresponding weight of the chain block is very heavy, and the chain block is inconvenient to install and disassemble; 3) the chain block needs great height space when using, to the gallows that the jib is shorter, the test is comparatively inconvenient.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a structural design is simple, safe and reliable, easy and simple to handle's constant force gallows field load test structure, this test structure adopts split type two-way plunger hydraulic jack as the power unit of drive constant force gallows operation, obtains the displacement-load data in the constant force gallows full stroke in real time through the tensile tester.
The utility model provides a technical scheme that above-mentioned problem adopted is: a constant-force hanger on-site load test structure comprises a constant-force hanger, a tension tester, a split type bidirectional plunger hydraulic jack, a threaded hanger rod, an annular lug, a pipe clamp and a pipeline; the split type bidirectional plunger hydraulic jack consists of a hydraulic pump, an oil pipe and a bidirectional plunger hydraulic oil cylinder; the tension tester and the bidirectional plunger hydraulic cylinder are sequentially and rigidly connected below a turnbuckle of the constant-force hanger; the lower side of the bidirectional plunger hydraulic cylinder is connected to an annular lug of the pipe clamp through a threaded hanging rod, the pipeline is located in the pipe clamp, and the bidirectional plunger hydraulic cylinder is connected with the hydraulic pump through an oil pipe. When the device is used, the constant-force hanging bracket is controlled to move up and down in the whole stroke range through stretching or shrinking of the split type bidirectional plunger hydraulic jack, and the load data of the constant-force hanging bracket at each position can be obtained by combining the test data of the tension tester.
Furthermore, the bidirectional plunger hydraulic cylinder mainly comprises a piston rod and a cylinder barrel, the piston rod is connected with the cylinder barrel, internal threads are uniformly distributed on the outer end heads of the piston rod and the cylinder barrel, the piston rod is connected with a tension tester, and the cylinder barrel is connected with a threaded suspender.
Furthermore, the measuring range of the tension tester is larger than the design load of the constant-force hanging bracket.
Furthermore, the split type bidirectional plunger hydraulic jack has a bidirectional displacement control function, has functions of jacking and pulling back, has the minimum working load larger than the design load of the constant-force hanger, and has the effective working displacement range larger than the displacement stroke of the constant-force hanger.
Furthermore, the constant-force hanger, the turnbuckle, the tension tester and the two-way plunger hydraulic oil cylinder are sequentially and vertically connected in series, and are rigidly connected with one another.
Furthermore, the lower side of the bidirectional plunger hydraulic cylinder is vertically connected to a pipe clamp or other fixed parts through a threaded suspension rod.
Furthermore, the threaded suspender is provided with a plurality of length specifications and is used for meeting the test requirements of constant-force hangers with different space heights.
Further, the hydraulic pump is one of a manual hydraulic pump and an electric hydraulic pump. The application range is wide.
Furthermore, the tension tester is also suitable for a strain gauge or a strain gauge which is stuck on the suspension rod, and load data is obtained by obtaining strain data and calculating.
Furthermore, the constant-force hanger is also suitable for spring hangers and rigid hangers, and has a wide application range.
Compared with the prior art, the utility model, have following advantage and effect:
1. compared with a chain block, the hydraulic pump is used for controlling the displacement of the hanging bracket, so that time and labor are saved, and the field operation is convenient;
2. in the field test process, the hanger frame runs stably, the test interference is small, and the result precision is high.
Drawings
Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.
Fig. 2 is an exploded view of the main components of the embodiment of the present invention.
In the figure: the device comprises a constant force hanger 1, a tension tester 2, a bidirectional plunger hydraulic cylinder 3, a threaded hanger rod 4, an annular lug 5, a pipe clamp 6, a pipeline 7, a hydraulic pump 8, an oil pipe 9, a turnbuckle 10, a piston rod 11 and a cylinder barrel 12.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Referring to fig. 1 to 2, the constant-force hanger field load testing structure in the embodiment includes a constant-force hanger 1, a tension tester 2, a split bidirectional plunger hydraulic jack, a threaded hanger rod 4, an annular lug 5, a pipe clamp 6 and a pipeline 7; the split type bidirectional plunger hydraulic jack consists of a hydraulic pump 8, an oil pipe 9 and a bidirectional plunger hydraulic oil cylinder 3.
The tension tester 2 and the two-way plunger hydraulic oil cylinder 3 are sequentially and rigidly connected below the turnbuckle 10 of the constant-force hanger 1; the lower side of the two-way plunger hydraulic cylinder 3 is connected to an annular lug 5 of a pipe clamp 6 through a threaded suspender 4, a pipeline 7 is positioned in the pipe clamp 6, and the two-way plunger hydraulic cylinder 3 is connected with a hydraulic pump 8 through an oil pipe 9.
The bidirectional plunger hydraulic cylinder 3 mainly comprises a piston rod 11 and a cylinder 12, the piston rod 11 is connected with the cylinder 12, internal threads are uniformly arranged at the outer end heads of the piston rod 11 and the cylinder 12, the piston rod 11 is connected with the tension tester 2, and the cylinder 12 is connected with the threaded suspender 4.
The constant-force hanger 1, the turnbuckle 10, the tension tester 2 and the two-way plunger hydraulic cylinder 3 are sequentially and vertically connected in series, are all rigidly connected with one another, and the lower side of the two-way plunger hydraulic cylinder 3 is vertically connected onto the pipe clamp 6 through the threaded suspender 4.
Both ends of the tension tester 2 are provided with threaded connecting rods for connecting the testers, wherein the right threaded end of the turnbuckle 10 and all the thread specifications on the tension tester 2, the piston rod 11, the cylinder barrel 12, the threaded suspender 4 and the annular lug 5 are consistent, so that the threaded direct connection between the two parts is facilitated.
Preparation work before testing: firstly, fixing the pipeline 7, locking the hanger to be tested at the upper limit displacement position, and dismantling connecting pieces such as a suspender on the original hanger.
Installing a test instrument: firstly, connecting a tension tester 2 below a turnbuckle 10; then connecting the two-way plunger hydraulic cylinder 3 below the tension tester 2; then the structure is connected with a pipe clamp 6 through a threaded suspender 4 and an annular lug 5, and the whole structure is kept in a vertical state as much as possible; and finally, the manual hydraulic pump 8 and the bidirectional plunger hydraulic cylinder 3 are connected through an oil pipe 9.
The bidirectional plunger hydraulic oil cylinder 3 is controlled to be in a state of jacking to the maximum displacement by the manual hydraulic pump 8; contracting the turnbuckle 10 until the test structure is in a tightened state; and then the bidirectional plunger hydraulic oil cylinder 3 is controlled to be pulled back continuously through the manual hydraulic pump 8 until the locking pin of the constant force hanger 1 is just pulled out, and the reading of the tension tester 2 is recorded as the pin pulling load of the constant force hanger 1.
And (3) load testing: the bidirectional plunger hydraulic oil cylinder 3 is controlled to be pulled back and lifted through the manual hydraulic pump 8, then the constant force hanger 1 is driven to move downwards and upwards, load readings of the constant force hanger 1 in all displacement states are recorded through the tension tester 2, and accordingly the corresponding full-stroke load data of the constant force hanger 1 can be obtained.
After the test is finished, the two-way plunger hydraulic oil cylinder 3 is controlled to be jacked up until the constant force hanger 1 reaches the upper limit locking position through the manual hydraulic pump 8, and the constant force hanger 1 is locked; then loosening the turnbuckle 10 until the test structure is in a loose state; sequentially disassembling the annular lug 5, the threaded suspender 4, the two-way plunger hydraulic cylinder 3 and the tension tester 2; and finally, reinstalling the hanging bracket to a normal working state to complete all testing work.
In addition, it should be noted that the above contents described in the present specification are only illustrations of the structure of the present invention. All equivalent changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions by those skilled in the art may be made to the described embodiments without departing from the scope of the invention as defined in the accompanying claims.
Claims (7)
1. A constant-force hanger field load test structure comprises a constant-force hanger (1), a tension tester (2), a split type bidirectional plunger hydraulic jack, a threaded hanger rod (4), an annular lug (5), a pipe clamp (6) and a pipeline (7); the split type bidirectional plunger hydraulic jack consists of a hydraulic pump (8), an oil pipe (9) and a bidirectional plunger hydraulic oil cylinder (3); the tension tester is characterized in that the tension tester (2) and the two-way plunger hydraulic cylinder (3) are sequentially and rigidly connected below a turnbuckle (10) of the constant-force hanger (1); the lower side of the bidirectional plunger hydraulic cylinder (3) is connected to an annular lug (5) of the pipe clamp (6) through a threaded suspender (4), the pipeline (7) is located in the pipe clamp (6), and the bidirectional plunger hydraulic cylinder (3) is connected with the hydraulic pump (8) through an oil pipe (9).
2. The constant-force hanger on-site load testing structure according to claim 1, wherein the bidirectional plunger hydraulic cylinder (3) mainly comprises a piston rod (11) and a cylinder barrel (12), the piston rod (11) is connected with the cylinder barrel (12), internal threads are arranged on outer end heads of the piston rod (11) and the cylinder barrel (12), the piston rod (11) is connected with the tension tester (2), and the cylinder barrel (12) is connected with the threaded hanger rod (4).
3. The constant force hanger on-site load test structure according to claim 1, characterized in that the range of the tension tester (2) is larger than the design load of the constant force hanger (1).
4. The constant-force hanger on-site load testing structure as claimed in claim 1, wherein the split type bidirectional plunger hydraulic jack has a bidirectional displacement control function, namely a jacking function and a pull-back function, the minimum working load is larger than the design load of the constant-force hanger (1), and the effective working displacement range is larger than the displacement stroke of the constant-force hanger (1).
5. The constant-force hanger on-site load testing structure as claimed in claim 1, wherein the constant-force hanger (1), the turnbuckle (10), the tension tester (2) and the bidirectional plunger hydraulic cylinder (3) are vertically arranged in series in sequence and are all rigidly connected with each other.
6. The constant force hanger field load test structure according to claim 1, characterized in that the underside of the bidirectional ram hydraulic cylinder (3) is vertically connected to a pipe clamp (6) by a threaded boom (4).
7. The constant force hanger on-site load testing structure according to claim 1, wherein the threaded hanger rod (4) has a plurality of length specifications for meeting the testing requirements of constant force hangers (1) with different spatial heights.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920896437.6U CN210243147U (en) | 2019-06-14 | 2019-06-14 | Constant-force hanger on-site load test structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920896437.6U CN210243147U (en) | 2019-06-14 | 2019-06-14 | Constant-force hanger on-site load test structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111855177A (en) * | 2020-07-22 | 2020-10-30 | 广州珠江天然气发电有限公司 | Method and system for testing performance of waste heat boiler constant force spring support and hanger and storage medium |
| CN113091859A (en) * | 2021-03-18 | 2021-07-09 | 苏州热工研究院有限公司 | Method for monitoring hanger load |
| CN113739079A (en) * | 2021-09-22 | 2021-12-03 | 西安热工研究院有限公司 | Power station pipeline on-line monitoring and early warning system and method based on digital twinning technology |
| CN113803531A (en) * | 2021-09-14 | 2021-12-17 | 西安热工研究院有限公司 | Pipeline constant force cable suspension device with overload protection function |
-
2019
- 2019-06-14 CN CN201920896437.6U patent/CN210243147U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111855177A (en) * | 2020-07-22 | 2020-10-30 | 广州珠江天然气发电有限公司 | Method and system for testing performance of waste heat boiler constant force spring support and hanger and storage medium |
| CN113091859A (en) * | 2021-03-18 | 2021-07-09 | 苏州热工研究院有限公司 | Method for monitoring hanger load |
| CN113803531A (en) * | 2021-09-14 | 2021-12-17 | 西安热工研究院有限公司 | Pipeline constant force cable suspension device with overload protection function |
| CN113739079A (en) * | 2021-09-22 | 2021-12-03 | 西安热工研究院有限公司 | Power station pipeline on-line monitoring and early warning system and method based on digital twinning technology |
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