CN218629319U - Prestress anchor plate strength static load bearing testing machine - Google Patents
Prestress anchor plate strength static load bearing testing machine Download PDFInfo
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- CN218629319U CN218629319U CN202222884464.6U CN202222884464U CN218629319U CN 218629319 U CN218629319 U CN 218629319U CN 202222884464 U CN202222884464 U CN 202222884464U CN 218629319 U CN218629319 U CN 218629319U
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- 238000012360 testing method Methods 0.000 title claims abstract description 20
- 230000003068 static effect Effects 0.000 title claims abstract description 15
- 238000006073 displacement reaction Methods 0.000 claims abstract description 17
- 238000003825 pressing Methods 0.000 claims description 7
- 238000012546 transfer Methods 0.000 claims description 7
- 239000006185 dispersion Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 11
- 238000005259 measurement Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 210000002435 tendon Anatomy 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
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Abstract
The utility model relates to an anchorage device anchor plate intensity detection technical field, concretely relates to prestressing force anchor plate intensity static load bearing testing machine, including base and travelling car, the travelling car is installed on the dolly support, be provided with corresponding guide rail on base and the dolly support, the travelling car is provided with the walking wheel that cooperates the guide rail, and the travelling car reciprocates between dolly support and base; the guide rail is provided with a limiting hole matched with the travelling wheel, a lifting block is matched in the limiting hole, and the lifting block is driven by a lifting oil cylinder to lift so as to limit the movable trolley; the movable trolley is provided with an anchor plate mounting assembly, the anchor plate mounting assembly comprises a bearing seat, a supporting base plate is mounted on the bearing seat and used for mounting an anchor plate to be tested, and the movable trolley further comprises a displacement sensor and a force measuring sensor for detecting the anchor plate to be tested. The utility model discloses it is accurate, easy and simple to handle, swift to detect data.
Description
Technical Field
The utility model relates to an anchorage device anchor slab strength testing technical field, concretely relates to prestressed anchorage slab strength static load bearing testing machine.
Background
The information disclosed in the background of the invention is only for the purpose of increasing an understanding of the general background of the invention and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art that is already known to a person of ordinary skill in the art.
The application of the prestress technology in China is increasingly wide, particularly, the construction scale of infrastructures such as roads, railway bridges, water conservancy facilities, electric power facilities and the like is continuously enlarged, the number of anchor plate products of the steel strand anchor clamp assembly part anchor is increased day by day, and the yield is continuously increased; therefore, the mechanical property test of the anchor plate of the anchorage device is more and more concerned by people; the static load bearing performance of the anchor plate is an important performance index related to the use condition of the anchor plate, so that the static load bearing test of the strength of the anchor plate of the prestressed anchor is an important detection item in the detection index of the prestressed anchor, the standard is that the load is released after the load reaches 95% of the standard strength of the prestressed tendon, and the deflection residual deformation of the anchor plate is not more than 1/600.
The quality of the anchor plate of the steel strand anchor fixture assembly part anchor is related to the quality of the building engineering, and the manufacturing process can be effectively improved and the product quality can be improved by a scientifically improved detection method.
In the prior art, the patent document of application No. 201922092474.4 discloses a pre-stressed anchor device anchor plate strength test device, which is used for solving the problem of inaccurate deflection measurement of the central position of an anchor device and comprises a base, wherein two upright posts are symmetrically arranged on the base, and are provided with footstock; according to the method, the anchor is driven to rise by the jack, a probe of the dynamometer is abutted to the lower end of the top seat, when the force detected by the dynamometer reaches 95% of the standard strength of the prestressed tendon, the anchor is driven to fall by the jack, the upper end of the dynamometer is separated from the lower end of the top seat, then the reading of the dial indicator is observed, the residual deflection of the anchor can be detected, the position of the connecting piece is adjusted, the deflection measurement of other positions of the anchor can be completed by the dial indicator, and the deflection of the edge and the central position of the anchor can be realized by the circulation; has the advantages of simple structure and convenient measurement of the edge and the central position of the anchorage device.
However, the deflection measurement of the anchorage device is completed through the dial indicator, the reading needs to be observed for multiple times manually, errors cannot be avoided, the measurement precision cannot be guaranteed, and the automation is poor.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model aims to provide a prestressed anchorage board intensity static load bearing testing machine.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a static load pressure-bearing testing machine for the strength of a prestressed anchor plate comprises a rack, wherein the rack comprises a base, four stand columns are arranged on the base, and top seats are arranged at the top ends of the stand columns;
a moving trolley is arranged outside the rack, the moving trolley is mounted on a trolley support, corresponding guide rails are arranged on the base and the trolley support, the moving trolley is provided with a travelling wheel matched with the guide rail, and the moving trolley drives the travelling wheel through a driving motor so as to enable the moving trolley to reciprocate between the trolley support and the base;
the guide rail is provided with a limiting hole matched with the travelling wheel, a lifting block is matched in the limiting hole, a lifting oil cylinder is arranged below the lifting block, and the lifting block is driven by the lifting oil cylinder to perform lifting motion, so that the movable trolley is limited;
the movable trolley is provided with an anchor plate mounting assembly, the anchor plate mounting assembly comprises a bearing seat, a supporting base plate is mounted on the bearing seat and used for mounting a tested anchor plate, a displacement sensor is arranged below the tested anchor plate, and a load transfer plate is arranged above the tested anchor plate;
the hydraulic cylinder is installed at the bottom of the top seat, the output end of the hydraulic cylinder faces downwards and is connected with the pressing plate, and a force measuring sensor is arranged between the output end of the hydraulic cylinder and the pressing plate.
Preferably, a load dispersion plate is arranged between the load transfer plate and the tested anchor plate; the load dispersion plate is a metal plate with rigidity smaller than that of the tested anchor plate.
Preferably, the displacement sensor comprises three sensors arranged at the center position and two side edge positions of the tested anchor plate.
Preferably, the displacement sensor is arranged in the bearing seat, and the upper end of the displacement sensor penetrates through the supporting base plate and is in contact with the tested anchor plate.
Preferably, the lifting oil cylinder drives the lifting block to fall, so that the travelling wheel of the moving trolley falls into the limiting hole, and the main body of the moving trolley is in close contact with the base; the lifting oil cylinder drives the lifting block to lift, so that the limit of the movable trolley is cancelled.
Preferably, the limiting hole is formed in the guide rail close to one side of the base, and the lifting oil cylinder is fixedly connected with the base.
Preferably, travel switches are arranged at two ends of the guide rail, and a limiting plate is arranged at one end, far away from the base, of the trolley support.
Has the advantages that: the utility model measures the stress of the tested anchor plate through the force transducer, measures the deformation of the tested anchor plate through the displacement transducer when the tested anchor plate is stressed, and then transmits the data of the load value of the tested anchor plate, the deformation values of three parts and the like to the computer system for data processing and analysis; the reading error is avoided, the automatic operation of detection is improved, and the detection data is accurate, simple and convenient to operate and quick.
Drawings
Fig. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic diagram of the movable trolley moving to the base during the test;
FIG. 4 is a schematic view of the fitting of the traveling carriage on the carriage bracket;
FIG. 5 is a schematic structural view of the limiting hole for limiting the movable trolley;
in the figure, 1 — base; 2, a column; 3, pressing a plate; 4-a force sensor; 5, a hydraulic cylinder; 6-a top seat; 7-load transfer steel plate; 8-load dispersing plate; 9-tested anchor plate; 10-supporting the backing plate; 11-a displacement sensor; 12-a lift cylinder; 13-moving the trolley; 14-trolley support; 15-driving the motor; 16-a travelling wheel; 17-a guide rail; 18-a travel switch; 19-limiting plate; 20-limiting holes; 21-lifting block.
Detailed Description
The invention will be further described with reference to the following specific embodiments and the accompanying drawings.
Fig. 1 to 5 show a pre-stressed anchor plate strength static load bearing tester, which comprises a frame, wherein the frame comprises a base, four upright posts are arranged on the base, and top seats are arranged at the top ends of the upright posts;
a moving trolley is arranged outside the rack, the moving trolley is mounted on a trolley support, corresponding guide rails are arranged on the base and the trolley support, the moving trolley is provided with a travelling wheel matched with the guide rail, and the moving trolley drives the travelling wheel through a driving motor so as to enable the moving trolley to reciprocate between the trolley support and the base;
the guide rail is provided with a limiting hole matched with the travelling wheel, a lifting block is matched in the limiting hole, a lifting oil cylinder is arranged below the lifting block, and the lifting block is driven by the lifting oil cylinder to perform lifting motion, so that the movable trolley is limited;
the movable trolley is provided with an anchor plate mounting assembly, the anchor plate mounting assembly comprises a bearing seat, a supporting base plate is mounted on the bearing seat and used for mounting a tested anchor plate, a displacement sensor is arranged below the tested anchor plate, and a load transfer plate is arranged above the tested anchor plate;
the hydraulic cylinder is installed at the bottom of the top seat, the output end of the hydraulic cylinder faces downwards and is connected with the pressing plate, and a force measuring sensor is arranged between the output end of the hydraulic cylinder and the pressing plate.
In another preferred embodiment, a load dispersion plate is arranged between the load transfer plate and the tested anchor plate, and the load is dispersed to make the load uniform; the load dispersion plate is a metal plate with rigidity smaller than that of the tested anchor plate, and is beneficial to the uniformity of stress in the detection process.
In a preferred embodiment, the displacement sensor comprises three sensors arranged at the center and two side edges of the tested anchor plate, and the three deformation detection points enable deformation detection to be more accurate.
In another preferred embodiment, as shown in fig. 2, the displacement sensor is disposed in the bearing seat, and the upper end of the displacement sensor penetrates through the supporting base plate and contacts with the anchor plate to be tested.
In another preferred embodiment, during the test, the lifting oil cylinder drives the lifting block to fall, so that the travelling wheel of the moving trolley falls into the limiting hole to limit the moving trolley, and meanwhile, the whole moving trolley falls into the limiting hole along with the travelling wheel and integrally moves downwards, so that the main body of the moving trolley is in close contact with the base to bear higher pressure, the travelling wheel is prevented from bearing load, the moving trolley is prevented from being deformed and damaged, and the adverse effect on the test is avoided; after the test is finished, the lifting oil cylinder drives the lifting block to rise, so that the lifting block base is parallel and level, the limit on the movable trolley is cancelled, and the trolley can move.
In another preferred embodiment, the limiting hole is arranged on a guide rail close to one side of the base, and the lifting oil cylinder is fixedly connected with the base; the test bed is more beneficial to the pause of the movable trolley on the base so as to carry out the test.
In another preferred embodiment, travel switches are arranged at two ends of the guide rail, so that automatic stopping is facilitated, and a limit plate is arranged at one end, away from the base, of the trolley support and used for limiting the stopping of the moving trolley on the trolley support; the computer system receives data signals of the force measuring sensor and the displacement sensor, receives stop signals of the travel switch, and controls the motor and the lifting oil cylinder to act.
The utility model measures the stress of the tested anchor plate through the force transducer, measures the deformation of the tested anchor plate through the displacement transducer when the tested anchor plate is stressed, and then transmits the data of the load value of the tested anchor plate, the deformation values of three parts and the like to the computer system for data processing and analysis; the reading error is avoided, the automatic operation of detection is improved, and the detection data is accurate, simple and convenient to operate and quick.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (7)
1. A static load bearing tester for the strength of a prestressed anchor plate comprises a frame, wherein the frame comprises a base, four upright posts are arranged on the base, and top seats are arranged at the top ends of the upright posts,
a moving trolley is arranged outside the rack, the moving trolley is mounted on a trolley support, corresponding guide rails are arranged on the base and the trolley support, the moving trolley is provided with a travelling wheel matched with the guide rail, and the moving trolley drives the travelling wheel through a driving motor so as to enable the moving trolley to reciprocate between the trolley support and the base;
the guide rail is provided with a limiting hole matched with the travelling wheel, a lifting block is matched in the limiting hole, a lifting oil cylinder is arranged below the lifting block, and the lifting block is driven by the lifting oil cylinder to perform lifting motion, so that the movable trolley is limited;
the movable trolley is provided with an anchor plate mounting assembly, the anchor plate mounting assembly comprises a bearing seat, a supporting base plate is mounted on the bearing seat and used for mounting a tested anchor plate, a displacement sensor is arranged below the tested anchor plate, and a load transfer plate is arranged above the tested anchor plate;
the hydraulic cylinder is installed at the bottom of the top seat, the output end of the hydraulic cylinder faces downwards and is connected with the pressing plate, and a force measuring sensor is arranged between the output end of the hydraulic cylinder and the pressing plate.
2. The pre-stressed anchor plate strength static load bearing testing machine of claim 1, wherein a load dispersion plate is arranged between the load transfer plate and the tested anchor plate; the load dispersion plate is a metal plate with rigidity smaller than that of the tested anchor plate.
3. The pre-stressed anchor plate strength static load bearing tester as claimed in claim 1, wherein the displacement sensor comprises three sensors disposed at the center and two side edges of the tested anchor plate.
4. The machine of claim 1, wherein the displacement sensor is disposed in the load-bearing seat, and the upper end of the displacement sensor penetrates through the support pad plate and contacts with the anchor plate to be tested.
5. The pre-stressed anchor plate strength static load bearing testing machine as claimed in any one of claims 1 to 4, wherein the lifting cylinder drives the lifting block to fall, so that the travelling wheel of the travelling car falls into the limiting hole, and the main body of the travelling car is in close contact with the base; the lifting oil cylinder drives the lifting block to lift, so that the limit of the movable trolley is cancelled.
6. The pre-stressed anchor plate strength static load bearing testing machine as claimed in claim 5, wherein the limiting hole is disposed on a guide rail near one side of the base, and the lift cylinder is fixedly connected with the base.
7. The pre-stressed anchor plate strength static load bearing testing machine as claimed in claim 6, wherein travel switches are arranged at two ends of the guide rail, and a limit plate is arranged at one end of the trolley bracket far away from the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222884464.6U CN218629319U (en) | 2022-10-31 | 2022-10-31 | Prestress anchor plate strength static load bearing testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222884464.6U CN218629319U (en) | 2022-10-31 | 2022-10-31 | Prestress anchor plate strength static load bearing testing machine |
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| Publication Number | Publication Date |
|---|---|
| CN218629319U true CN218629319U (en) | 2023-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222884464.6U Expired - Fee Related CN218629319U (en) | 2022-10-31 | 2022-10-31 | Prestress anchor plate strength static load bearing testing machine |
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| CN (1) | CN218629319U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117929140A (en) * | 2024-01-25 | 2024-04-26 | 徐闻县粤水电能源有限公司 | Drawing test method and device for photovoltaic bracket anchor-pulling structure |
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2022
- 2022-10-31 CN CN202222884464.6U patent/CN218629319U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117929140A (en) * | 2024-01-25 | 2024-04-26 | 徐闻县粤水电能源有限公司 | Drawing test method and device for photovoltaic bracket anchor-pulling structure |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20230314 |