CN201622206U - Jig mechanism for large-sized bolt tensile tester - Google Patents
Jig mechanism for large-sized bolt tensile tester Download PDFInfo
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- CN201622206U CN201622206U CN2010201391531U CN201020139153U CN201622206U CN 201622206 U CN201622206 U CN 201622206U CN 2010201391531 U CN2010201391531 U CN 2010201391531U CN 201020139153 U CN201020139153 U CN 201020139153U CN 201622206 U CN201622206 U CN 201622206U
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Abstract
The utility model relates to a jig mechanism which makes it possible to test bolt of various sizes on a large-sized bolt tensile tester. The jig mechanism for large-scale bolt tensile tester comprises two stretching bars (1) on the left and right side of the tensile tester and a blot to be tested (4), and works in such a manner that the testing jigs (2) are fixedly connected to the left and right stretching bars (1), the bolt head and nut of the bolt to be tested (4), passing through circular holes (2a4) of the left and right testing jigs (2), are inversely fixed on the baffle plates (2a1) of the left and right testing jigs (2) respectively or inversely fixed on the baffle plates (2a1)of the left and right testing jigs (2) through a elongated sleeve (3) and a transitional bolt (5). The jig mechanism is simple in structure and easy in operation, and ensures the correctness and accuracy of the testing results. Bolts that can be tested on the large-sized bolt tensile tester with such a jig mechanism range from M 30 to M 90 and the length thereof ranges from 300 to 500 mm. The utility model makes contributions to the quality control of large-sized bolts in engineering field and further benefits to the fast economic development.
Description
Technical field
The utility model relates to a kind of appurtenance of big specification bolt performance test, specifically relates to a kind of clamp mechanism that can the big stove bolt of universal test all size on large-scale bolt tension performance aircraft.
Background technology
Along with rapid development of economy, the demand of the energy also increases day by day, and simultaneously, for the living environment of protecting us and limited energy resources, the development of new and renewable sources of energy has become the developing direction of countries in the world energy production.As world important energy production and consumption big country, China pays much attention to the development of new and renewable sources of energy in recent years.Wind energy more and more is subjected to the attention of countries in the world as a kind of regenerative resource of cleaning.The Chinese feature energy storage capacity is very big, distribution is wide, and the wind-power electricity generation industry develops rapidly, becomes one of global wind-power electricity generation principal market after Europe, the U.S. and India, and wind-power electricity generation has become an important directions of China's new forms of energy development.The wind-power electricity generation installed capacity of China at present realized " double growth " in continuous 3 years, and total installation of generating capacity has occupied the 4th in the world at present.
The high speed development of wind-power electricity generation has also proposed higher requirement to the quality of wind power plant.Safe and reliable wind power plant efficiently is the favourable assurance of wind-power electricity generation development.The quality testing of wind power plant plays crucial effects.Key components and parts as wind power plant---the Performance Detection of wind-powered electricity generation bolt, the important step that guaranteed of wind power equipment quality especially.
Simultaneously, along with going deep into of reform and opening-up, development of economic construction, large foundation construction, capital construction project start, in these large-engineerings, use big specification bolt in a large number, how to detect, controlling this big specification bolt, comprising the performance and the quality of pulling strengrth aspect, the success or failure of these engineerings will be related to, great society and economic benefit will be involved.
At present, the bolt specification of the general bolt tension test board test of using is as below the M30, the test clamp tool is to be respectively the wedge-shaped slot that is dovetail groove at the two that stretches, embed wheel chock in the groove, offer circular hole on the wheel chock, bolt penetrates in the circular hole, and the wheel chock at two ends stretches to nut and spiral shell head, the tensile property of test bolt.
But the specification of major diameter wind-powered electricity generation bolt even reaches M80 more than M45, and common bolt tension testing machine can not adapt to and use fully, does not also more have the clamping fixture of suitable big specification bolt test usefulness.
At present, the domestic and international performance detection apparatus of large diameter bolt though form is different, carries out to the two ends of bolt by power that stretching in the other direction tests.
The scope of big specification bolt is generally between M30 to M80, and the length of bolt is between 300 to 500mm.Large-scale bolt performance detection apparatus, power is big, complex structure, volume is big, costly, how on a big specification bolt test board, to provide suitable, convenient, reliably, test fixture accurately, how on a testing apparatus, can the bigger big specification bolt of test size range changing be a great technical barrier, be provided on the testing apparatus and have bigger versatility, the anchor clamps of applicability, reduce testing expense, enlarge and universal power of the test, operate nimblely, test is correct, a difficult problem of guaranteeing the clamp structure of construction quality presses for scientific and technical personnel and solves.
Summary of the invention
The purpose of this utility model provides a kind of auxiliary clamp structure of using at big specification bolt tension testing apparatus stretching two ends, reaches to use the scope that enlarges test bolt size dimension behind the auxiliary clamp, and is easy for operation, the purpose that measuring accuracy is high.
The purpose of this utility model is achieved by following technical scheme:
A kind of clamp mechanism of big specification bolt tension testing machine comprises left and right two stretching bars of extension test equipment and tested bolt, it is characterized in that:
The fixedly connected test fixture of difference on left and right stretching bar,
Tested bolt penetrates in the circular hole of left and right test fixture, and bolt head and nut be the baffle plate of back-off both sides test fixture respectively;
Perhaps, tested bolt overlaps and the transition bolt through lengthening, respectively the baffle plate of back-off both sides test fixture.
Further, described test fixture comprises pulling seat, arm-tie and centering pad;
Described pulling seat is the cuboid of top opening, and segmentum laterale contains internal thread hole, matches with the external thread of stretching bar, and the inboard is a baffle plate, offers circular hole on the baffle plate, and the circular hole top is an open slot, and the centre is the empty hollow cavity of thread;
Described arm-tie is for embedding the plate of pulling seat hollow cavity, and prominent groove of plate projection embeds in the open slot, and connect with circular hole and offer through hole, at the through hole rear portion sphere hole;
Described centering pad, the evagination sphere that a side and sphere hole match, a side is the plane.
Further again, the diameter of described circular hole and through hole is the 50-90 millimeter.
Further, described lengthening cover is cup-shaped, and bolt hole is offered at the cup end, and open side is an internal thread.
Further again, the diameter of described bolt hole is the 35-70 millimeter.
Further, described transition bolt is that an end is the thread head that matches with lengthening cover internal thread, and an end is the plain bolt thread segment.
Further again, the total length of described transition bolt is the 300-450 millimeter.
Further, described stretching bar is connected threadably with test fixture.
Adopt the technical program, can the big length of extension test on same big specification bolt tension testing apparatus and the big specification bolt of diameter, wherein can be divided into two big classes.For the tested bolt of large-size wherein, can directly be clamped on the test fixture, and, then can pass in the bolt hole of lengthening cover for the tested bolt of reduced size wherein, be clamped on the test fixture again through the transition bolt and test.
Superiority of the present utility model and beneficial effect, the technical program is simple in structure, and is easy to operate, in the bolt strength field tests, designed and produced the clamping fixture of standard first, can guarantee the correctness and the accuracy of test result.On a big specification bolt tension testing apparatus, can realize the bolt of the specification greatly test that large-size changes first.The small size bolt specification is numerous, but variation range is limited eventually, take into account than being easier to size, but BIG SIZE BOLTS, its length, big young pathbreaker alter a great deal the variation of absolute value, on a testing apparatus, if not having the utility model is to be difficult to realize that the fund of having high input of will having to designs and produces many test machines, the utility model has demonstrated fully its advantage.Having realized first can be to big specification bolt, between M30 to M90, bolt length is the strength character test of bolt between 300 to 500mm, for needing big specification bolt, the large-scale environmental protection of state key, field such as energy-conservation make the contribution of quality assurance aspect as occasion fastening, web member, the project of vital and lasting importance of favourable engineering, the high speed development of favourable economic construction.
Description of drawings
Fig. 1 is a kind of embodiment of auxiliary clamp of the big specification bolt tension of the utility model testing apparatus, looks the broken section structural drawing the master of the big specification bolt that stretches;
Fig. 2 is the A-A cut-open view of Fig. 1;
Fig. 3 is a kind of embodiment of auxiliary clamp of the big specification bolt tension of the utility model testing apparatus, overlooks the broken section structural drawing than the small dimension bolt stretching;
Fig. 4 is the right view of pulling seat parts;
Fig. 5 is that the master of pulling seat parts looks cut-open view;
Fig. 6 is the left view of pulling seat parts;
Fig. 7 is the vertical view cutaway drawing of pulling seat parts;
Fig. 8 is the cut-open view of lengthening cover parts;
Fig. 9 is the cut-open view of transition bolt member;
Figure 10 is the right view of arm-tie parts;
Figure 11 is that the master of arm-tie parts looks cut-open view;
Figure 12 is the left view of arm-tie parts;
Figure 13 is the vertical view of arm-tie parts;
Figure 14 is the cut-open view of centering pad parts.
Among the figure:
The 1st, the stretching bar, the 2nd, test fixture, 2a are pulling seats, 2a1 is a baffle plate, 2a2 is an internal thread hole, and 2a3 is an open slot, and 2a4 is a circular hole, and 2a5 is a hollow cavity, 2b is an arm-tie, and 2b1 is prominent groove, and 2b2 is a through hole, and 2b3 is a sphere hole, 2c is the centering pad, the 3rd, at the bottom of lengthening cover, 3a be glass, 3b is a bolt hole, and 3c is an internal thread, the 4th, and tested bolt, the 5th, transition bolt, the 6th, nut, the 7th, shellproof pin.
Embodiment
In conjunction with the accompanying drawings the utility model content is being described further down.
A kind of clamp mechanism of big specification bolt tension testing machine comprises left and right two stretching bars 1 of extension test equipment and tested bolt 4,
The fixedly connected test fixture 2 of difference on left and right stretching bar 1,
Tested bolt 4 penetrates among the circular hole 2a4 of left and right test fixture 2, and bolt head and nut be the baffle plate 2a1 of back-off both sides test fixture 2 respectively;
Perhaps, tested bolt 4 process lengthening cover 3 and transition bolts 5, the baffle plate 2a1 of back-off both sides test fixture 2 respectively.
Described test fixture 2 comprises pulling seat 2a, arm-tie 2b and centering pad 2c; Tested bolt 4 or transition bolt 5 penetrate in the hole of arm-tie 2b and centering pad 2c, insert jointly among the hollow cavity 2a5 of pulling seat 2a again, and 2a1 stops by baffle plate, just can test the pulling strengrth of bolt when being subjected to the pulling force of the left and right sides.Arm-tie 2b is that sphere contacts with centering pad 2c between the two, therefore, can guarantee pulling force thus on the axis of bolt automatically towards circle centre position centering when being subjected to lateral pull, improves measuring accuracy and correctness.
Described pulling seat 2a is the cuboid of top opening, and segmentum laterale contains internal thread hole 2a2, matches with the external thread of stretching bar 1, and the inboard is a baffle plate 2a1, offers circular hole 2a4 on the baffle plate 2a1, and circular hole 2a4 top is open slot 2a3, and the centre is the empty hollow cavity 2a5 of thread; The action that stretches to be threaded of structure thus, the stretching bar 1 that both can realize the bolt tension testing apparatus can provide the restrained force that stops that bolt is drawn out by the baffle plate 2a1 on the pulling seat 2a again, realizes the tensile strength test axial to the rod member of bolt.
Described arm-tie 2b is for embedding the plate of pulling seat 2a hollow cavity 2a5, and prominent groove 2b1 of plate projection embeds in the open slot 2a3, and connect with circular hole 2a4 and offer through hole 2b2, be a sphere hole 2b3 at through hole 2b2 rear portion; Prominent groove 2b1 embeds in the open slot 2a3, can guarantee that tested bolt position is difficult for deflection in the test process, and test is correct, and having placed restrictions on bolt can only move up and down, and adds aforesaid sphere contact mechanism, guarantees that test position is more accurate, strict.
Described centering pad 2c, the evagination sphere that a side and sphere hole 2b3 match, a side is the plane.So structure simultaneously provides the automatic centering effect of sphere, and one side adapts to the fixation of bolt in test, and when needs were tested other specification bolt, the centering pad 2c that only changes different size just can realize, and was flexible, convenient, motor-driven, low-cost.
The diameter of described circular hole 2a4 and through hole 2b2 is the 50-90 millimeter.This is the big specification bolt size of at present general large usage quantity.
It is 3 cup-shaped that described lengthening overlaps, and a cup end 3a offers bolt hole 3b, and open side is internal thread 3c.So structure disposes transition bolt 5, just can realize the lengthening function of test fixture, and the bolt that adapts to more range of size is tested.
The diameter of described bolt hole 3b is the 35-70 millimeter.This is the big specification bolt size of at present general large usage quantity.
Described transition bolt 5 is that an end is the thread head that matches with lengthening cover 3 internal thread 3c, and an end is the plain bolt thread segment.
The total length of described transition bolt 5 is the 300-450 millimeter, has comprised the two sections screw threads in two ends, by for providing and satisfy the test needs of various big specification bolts.
Described stretching bar 1 is connected threadably with test fixture 2.Can realize both having connected reliably with this structure, processing and fabricating is convenient again, reduces cost, and satisfies test request.
Claims (8)
1. the clamp mechanism of one kind big specification bolt tension testing machine comprises left and right two stretching bars of extension test equipment (1) and tested bolt (4), it is characterized in that:
Go up fixedly connected test fixture (2) respectively at left and right stretching bar (1),
Tested bolt (4) penetrates in the circular hole (2a4) of left and right test fixture (2), and bolt head and nut be the baffle plate (2a1) of back-off both sides test fixtures (2) respectively;
Perhaps, tested bolt (4) is through lengthening cover (3) and transition bolt (5), the baffle plate (2a1) of back-off both sides test fixtures (2) respectively.
2. according to the clamp mechanism of the described big specification bolt tension testing machine of claim 1, it is characterized in that described test fixture (2) comprises pulling seat (2a), arm-tie (2b) and centering pad (2c);
Described pulling seat (2a) is the cuboid of top opening, segmentum laterale contains internal thread hole (2a2), match with the external thread of stretching bar (1), the inboard is a baffle plate (2a1), offer circular hole (2a4) on the baffle plate (2a1), circular hole (2a4) top is open slot (2a3), and the centre is the empty hollow cavity (2a5) of thread;
Described arm-tie (2b) is for embedding the plate of pulling seat (2a) hollow cavity (2a5), and a prominent groove of plate projection (2b1) embeds in the open slot (2a3), and connect with circular hole (2a4) and offer through hole (2b2), be a sphere hole (2b3) at through hole (2b2) rear portion;
Described centering pad (2c), the evagination sphere that a side and sphere hole (2b3) match, a side is the plane.
3. according to the clamp mechanism of the described big specification bolt tension testing machine of claim 2, it is characterized in that the diameter of described circular hole (2a4) and through hole (2b2) is the 50-90 millimeter.
4. according to the clamp mechanism of the described big specification bolt tension testing machine of claim 1, it is characterized in that described lengthening cover (3) is cup-shaped, the cup end (3a) is offered bolt hole (3b), and open side is internal thread (3c).
5. according to the clamp mechanism of the described big specification bolt tension testing machine of claim 4, the diameter that it is characterized in that described bolt hole (3b) is the 35-70 millimeter.
6. according to the clamp mechanism of the described big specification bolt tension testing machine of claim 1, it is characterized in that described transition bolt (5) is that an end is the thread head that matches with lengthening cover (3) internal thread (3c), an end is the plain bolt thread segment.
7. according to the clamp mechanism of the described big specification bolt tension testing machine of claim 6, the total length that it is characterized in that described transition bolt (5) is the 300-450 millimeter.
8. according to the clamp mechanism of the described big specification bolt tension testing machine of claim 1, it is characterized in that described stretching bar (1) is connected threadably with test fixture (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201391531U CN201622206U (en) | 2010-03-03 | 2010-03-03 | Jig mechanism for large-sized bolt tensile tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201391531U CN201622206U (en) | 2010-03-03 | 2010-03-03 | Jig mechanism for large-sized bolt tensile tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201622206U true CN201622206U (en) | 2010-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201391531U Expired - Lifetime CN201622206U (en) | 2010-03-03 | 2010-03-03 | Jig mechanism for large-sized bolt tensile tester |
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| Country | Link |
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| CN (1) | CN201622206U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175520A (en) * | 2011-03-09 | 2011-09-07 | 西安交通大学 | Device and method for testing tensile strength of coating |
| CN102192854A (en) * | 2010-03-03 | 2011-09-21 | 上海宝冶工程技术有限公司 | Fixture structure of large-specification bolt stretching test equipment |
| ITTO20130134A1 (en) * | 2013-02-18 | 2014-08-19 | Skf Ab | EQUIPMENT AND PROCEDURE FOR TESTING THE RESISTANCE TO RIPPED THREADED HOLES |
| CN104111191A (en) * | 2013-04-18 | 2014-10-22 | 汉达精密电子(昆山)有限公司 | Nut drawing force test structure |
-
2010
- 2010-03-03 CN CN2010201391531U patent/CN201622206U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192854A (en) * | 2010-03-03 | 2011-09-21 | 上海宝冶工程技术有限公司 | Fixture structure of large-specification bolt stretching test equipment |
| CN102175520A (en) * | 2011-03-09 | 2011-09-07 | 西安交通大学 | Device and method for testing tensile strength of coating |
| CN102175520B (en) * | 2011-03-09 | 2013-02-06 | 西安交通大学 | Device for testing tensile strength of coating and using method thereof |
| ITTO20130134A1 (en) * | 2013-02-18 | 2014-08-19 | Skf Ab | EQUIPMENT AND PROCEDURE FOR TESTING THE RESISTANCE TO RIPPED THREADED HOLES |
| CN104111191A (en) * | 2013-04-18 | 2014-10-22 | 汉达精密电子(昆山)有限公司 | Nut drawing force test structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101103 Effective date of abandoning: 20130529 |
|
| RGAV | Abandon patent right to avoid regrant |