CN203672725U - Torsional shear type high-strength bolt fastening and pretension force testing device - Google Patents
Torsional shear type high-strength bolt fastening and pretension force testing device Download PDFInfo
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- CN203672725U CN203672725U CN201320855390.1U CN201320855390U CN203672725U CN 203672725 U CN203672725 U CN 203672725U CN 201320855390 U CN201320855390 U CN 201320855390U CN 203672725 U CN203672725 U CN 203672725U
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Abstract
The utility model discloses a torsional shear type high-strength bolt fastening and pretension force testing device which comprises an electric torsional shear spanner, an axial force sensor and a test bed, wherein the test bed comprises a fixing plate and a mounting support, wherein the fixing plate is provided with a plurality of screw holes in different dimensions, the upper end of the mounting support is fixedly connected with the fixing plate, and the lower end of the mounting support is pre-buried in a terrace. The torsional shear type high-strength bolt fastening and pretension force testing device can ensure that the nut end of a torsional shear type high-strength bolt sample can be fixed steadily without combining a steel structure matter on a construction site, and testing requirements are met.
Description
Technical field
The utility model relates to the fastening pretension test unit of a kind of torsion shear type high tensile bolt, belongs to building materials performance test apparatus technical field.
Background technology
At the torsion shear type high tensile bolt of the building field application such as Steel Structure Installation, need to carry out fastening pretension test to ensure the reliability of its performance quality to it, the method of fastening pretension test mainly comprises the following steps: the nut end of torsion shear type high tensile bolt sample is fixed, with the wabbler of electric torsional shearing wrench rotation torsion shear type high tensile bolt, whether test wabbler can come off under predetermined moment of torsion or the anglec of rotation.Because torsion shear type high tensile bolt physical strength is large, the installation requirement that the electric torsional shearing wrench of torsion shear type high tensile bolt need to possess very large torque power and just can reach torsion shear type high tensile bolt is installed, is required the wabbler of torsion shear type high tensile bolt is come off.Therefore in the prior art,, while carrying out above-mentioned fastening pretension test, conventionally need can firmly to be fixed in conjunction with the nut end of steel construction guarantee torsion shear type high tensile bolt in kind sample at the construction field (site).Not only affect construction speed but also have potential safety hazard but test at the construction field (site), the dismounting difficulty of defective torsion shear type high tensile bolt after test is large.
Utility model content
The deficiency that the utility model exists for prior art just, provide a kind of torsion shear type high tensile bolt fastening pretension test unit, without guaranteeing that in conjunction with steel construction material object the nut end of torsion shear type high tensile bolt sample can firmly be fixed at the construction field (site), meet testing requirements.
For addressing the above problem, technical solution adopted in the utility model is as follows:
The fastening pretension test unit of a kind of torsion shear type high tensile bolt, comprise: electric torsional shearing wrench, axial force sensor, testing table, described testing table comprises fixed head and installation foot, described fixed head is provided with the screw of multiple different sizes, described installation foot upper end is fixedly connected with described fixed head, and described installation foot lower end is embedded in terrace.
As the improvement of technique scheme, described fixed head comprises screw mounting groove and movable screw, and described movable screw is arranged in described screw mounting groove.
As the improvement of technique scheme, described screw mounting groove is regular hexagon, and described movable screw is also the regular hexagon mating with described screw mounting groove.
As the improvement of technique scheme, it is protruding that described screw mounting groove inwall bottom is provided with spacing ring, and described movable screw is arranged at the protruding top of described spacing ring.
Compared with prior art, implementation result of the present utility model is as follows for the utility model:
The fastening pretension test unit of torsion shear type high tensile bolt described in the utility model, (1), installation process are convenient, easy and simple to handle; (2), firm in structure durable, not fragile, meet corresponding code requirement; (3) duty, under completely can simulated field execution conditions, effective technical support is provided therefore can to on-the-spot practical operation, and the method is applicable to corresponding national standard and industry standard; (4), in process of the test, there will not be dangerous situation; (5), temperature requirement is low, substantially can meet all kinds of testing requirementss; (6), without any pollution and corrosivity, to human body without any harmfulness.
Accompanying drawing explanation
Fig. 1 is the fastening pretension test unit of the torsion shear type high tensile bolt described in embodiment mono-cross-sectional view;
Fig. 2 is the fixed head plan structure schematic diagram described in embodiment mono-;
Fig. 3 is the testing table cross-sectional view described in embodiment bis-;
Fig. 4 is the fixed head plan structure schematic diagram described in embodiment bis-.
Embodiment
Content of the present utility model is described below in conjunction with specific embodiments.
Embodiment mono-
As depicted in figs. 1 and 2, the fastening pretension test unit of torsion shear type high tensile bolt described in the utility model, comprise: electric torsional shearing wrench 1, axial force sensor 2, testing table, described testing table comprises fixed head 31 and installation foot 32, described fixed head 31 is provided with the screw of multiple different sizes, described installation foot 32 upper ends are fixedly connected with described fixed head 31, and described installation foot 32 lower ends are embedded in terrace.Particularly, described installation foot 32 adopts the steel pipe of four φ 48 mm × 3.75 mm, it is that 800 mm × 500 mm, thickness are the steel plate of 18 mm that described fixed head 31 adopts long × wide, by described installation foot 32 by being welded to connect on described fixed head 31, four steel pipes are embedded in terrace, on steel plate, be evenly arranged the corresponding bolt hole of M16-M30 torsion shear type high tensile bolt, steel plate is through the processing of ball blast sandblast iso-scallop, and derusting grade reaches Sa2.5.
Using method: (1), torsion shear type high tensile bolt sample found on fixed head 31 to the screw of corresponding specification and pass, and make nut one end below, wabbler one end up, again axial force sensor 2 is sleeved on the screw rod of torsion shear type high tensile bolt sample, and then the nut coordinating with torsion shear type high tensile bolt sample is screwed on torsion shear type high tensile bolt sample and is positioned at axial force sensor 2 tops and contacts with axial force sensor 2.(2), electric torsional shearing wrench 1 is inserted on the wabbler of torsion shear type high tensile bolt sample, and block and make it firm.(3), open the page that preheated testing machine finds corresponding torsional shear type bolt to detect, check whether the axial force sensor 2 of joint test machine and the electric torsional shearing wrench 1 being sleeved on torsion shear type high tensile bolt sample are connected firmly, after inspection, pressing the switch of electric torsional shearing wrench 1 tests, until the wabbler of torsion shear type high tensile bolt sample is twisted into two parts rear off-test, read test figure.(4), after off-test, carry out the dismounting of torsion shear type high tensile bolt sample.Above-mentioned testing machine refers to the equipment that connects and control described axial force sensor 2, and is provided with chip in described testing machine, and described chip has the program of automatic calculating test findings.
Embodiment bis-
As shown in Figure 3 and Figure 4, the fastening pretension test unit of torsion shear type high tensile bolt described in the utility model, comprising:.Electric torsional shearing wrench 1, axial force sensor 2, testing table, described testing table comprises fixed head 31 and installation foot 32, described fixed head 31 is provided with the screw of multiple different sizes, and described installation foot 32 upper ends are fixedly connected with described fixed head 31, and described installation foot 32 lower ends are embedded in terrace; And described fixed head 31 comprises screw mounting groove 311 and movable screw 312, described movable screw 312 is arranged in described screw mounting groove 311.Particularly, described screw mounting groove 311 is regular hexagon, and described movable screw 312 is the regular hexagon for mating with described screw mounting groove 311 also.Further, it is protruding 313 that described screw mounting groove 311 inwalls bottoms are provided with spacing ring, and described movable screw 312 is arranged at protruding 313 tops of described spacing ring.
The screw mounting groove 311 of described structure is set, be convenient to the processing of testing table, and can select according to actual operation requirements the movable screw 312 of all size, and the movable screw 312 of a certain specification damages the movable screw 312 that only needs to change that specification of damaging, when the torsion shear type high tensile bolt sample of multiple same specifications need to be tested, the movable screw 312 of multiple same specifications can be installed, thereby improve test efficiency; And movable screw 312 can adopt the wear-resisting steel of high-intensity high-quality, and other positions of fixed head 31 only need be used common iron, thereby has saved manufacturing cost.The using method of embodiment bis-is with embodiment mono-.
Above content is the detailed description of in conjunction with specific embodiments the utility model being done, and can not assert that the concrete enforcement of the utility model only limits to these explanations.For the utility model person of ordinary skill in the field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to the scope of the utility model protection.
Claims (4)
1. the fastening pretension test unit of torsion shear type high tensile bolt, it is characterized in that, comprise: electric torsional shearing wrench (1), axial force sensor (2), testing table, described testing table comprises fixed head (31) and installation foot (32), described fixed head (31) is provided with the screw of multiple different sizes, described installation foot (32) upper end is fixedly connected with described fixed head (31), and described installation foot (32) lower end is embedded in terrace.
2. the fastening pretension test unit of torsion shear type high tensile bolt as claimed in claim 1, it is characterized in that, described fixed head (31) comprises screw mounting groove (311) and movable screw (312), and described movable screw (312) is arranged in described screw mounting groove (311).
3. the fastening pretension test unit of torsion shear type high tensile bolt as claimed in claim 2, is characterized in that, described screw mounting groove (311) is regular hexagon, and described movable screw (312) is also the regular hexagon mating with described screw mounting groove (311).
4. the fastening pretension test unit of torsion shear type high tensile bolt as claimed in claim 2, it is characterized in that, described screw mounting groove (311) inwall bottom is provided with spacing ring protruding (313), and described movable screw (312) is arranged at described spacing ring protruding (313) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320855390.1U CN203672725U (en) | 2013-12-23 | 2013-12-23 | Torsional shear type high-strength bolt fastening and pretension force testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320855390.1U CN203672725U (en) | 2013-12-23 | 2013-12-23 | Torsional shear type high-strength bolt fastening and pretension force testing device |
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| Publication Number | Publication Date |
|---|---|
| CN203672725U true CN203672725U (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320855390.1U Expired - Fee Related CN203672725U (en) | 2013-12-23 | 2013-12-23 | Torsional shear type high-strength bolt fastening and pretension force testing device |
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| Country | Link |
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| CN (1) | CN203672725U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007797A (en) * | 2017-12-29 | 2018-05-08 | 珠海中航艾维检测技术有限公司 | One kind twists de- frock |
| CN109490101A (en) * | 2018-12-20 | 2019-03-19 | 中国航空综合技术研究所 | Bolt driver slot twisting performance test apparatus and its test method |
-
2013
- 2013-12-23 CN CN201320855390.1U patent/CN203672725U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007797A (en) * | 2017-12-29 | 2018-05-08 | 珠海中航艾维检测技术有限公司 | One kind twists de- frock |
| CN109490101A (en) * | 2018-12-20 | 2019-03-19 | 中国航空综合技术研究所 | Bolt driver slot twisting performance test apparatus and its test method |
| CN109490101B (en) * | 2018-12-20 | 2023-09-08 | 中国航空综合技术研究所 | Bolt screwing tool groove turning and screwing performance test device and test method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20141223 |
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| EXPY | Termination of patent right or utility model |