CN105628495A - Auxiliary device used for bolt strength test - Google Patents

Auxiliary device used for bolt strength test Download PDF

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Publication number
CN105628495A
CN105628495A CN201610114108.2A CN201610114108A CN105628495A CN 105628495 A CN105628495 A CN 105628495A CN 201610114108 A CN201610114108 A CN 201610114108A CN 105628495 A CN105628495 A CN 105628495A
Authority
CN
China
Prior art keywords
card block
pull bar
shaped groove
bolt
clamping block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610114108.2A
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Chinese (zh)
Inventor
吴光武
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Hengtong Zhaoye Precision Machinery Co Ltd
Original Assignee
Chengdu Hengtong Zhaoye Precision Machinery Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chengdu Hengtong Zhaoye Precision Machinery Co Ltd filed Critical Chengdu Hengtong Zhaoye Precision Machinery Co Ltd
Priority to CN201610114108.2A priority Critical patent/CN105628495A/en
Publication of CN105628495A publication Critical patent/CN105628495A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02Details
    • G01N3/04Chucks
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/10Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The invention discloses an auxiliary device used for a bolt strength test. The auxiliary device comprises a first clamping block and a second clamping block which are fixedly connected with a first pull rod and a second pull rod respectively. The first pull rod is used for fixedly connecting the first clamping block with a hydraulic tester. The second pull rod is used for fixedly connecting the second clamping block with the hydraulic tester. T-shaped grooves are formed in the first clamping block and the second clamping block respectively. The width of the bottom end of each T-shaped groove is larger than the width of the opening end. The depth direction of the T-shaped groove in the first clamping block is parallel to the axis direction of the first pull rod. The depth direction of the T-shaped groove in the second clamping block is parallel to the axis direction of the second pull rod. The first pull rod and the first clamping block are detachably connected. The second pull rod and the second clamping block are detachably connected. Due to the adoption of the structure, compared with the process of directly connecting a bolt to the hydraulic tester, the efficiency for taking up bolts from the hydraulic tester and putting down bolts on the hydraulic tester is ten times higher than the efficiency of a traditional scheme. The adopted structure is beneficial for whole-set popularization.

Description

A kind of supplementary unit for bolt strength test
Technical field
The present invention relates to mechanical fastener experiment porch technical field, particularly relate to a kind of supplementary unit for bolt strength test.
Background technology
Bolt is a kind of mechanical component, is generally the fastening piece joined with the cylinder shape belt screw thread of nut. Bolt is made up of head and screw rod (with externally threaded right cylinder) two portions, it may also be useful to time need to coordinate with nut, and for being fastenedly connected two parts with through hole, this kind of type of attachment claims bolt to connect. Under nut is revolved from bolt, can make again these two parts separately, therefore bolt connection belongs to removably connect. Divide by the force way connected: point common and have articulation hole. Divide by nose shape: have hex hd, round end, square head, heavy head etc. Wherein hex hd is the most frequently used. At present, the bolt applying to different field or purposes emerges in an endless stream, such as require surface hardness height and heart portion has flexible self-tapping screw, for preventing the anticorrosive bolt of flow-induced corrosion, high temperature bolt etc. But, the basic purposes of bolt is the fastening needs being required to meet web member, therefore the tensile strength that bolt has satisfied utilization is the basic demand to bolt.
In prior art in the course of processing of bolt, it is necessary to carry out many roads manufacturing procedure, these manufacturing procedures generally comprise the treatment process for improving bolt mechanical property such as thermal treatment, surface cementation process. For the tensile mechanical Performance Detection of finished product bolt, in prior art, general employing hydraulic dynamometer measures, but, in prior art, the joint efficiency of bolt and hydraulic dynamometer is not high, affects the efficiency of bolt tension force test.
Summary of the invention
For tensile mechanical Performance Detection for finished product bolt in above-mentioned prior art, in prior art, general employing hydraulic dynamometer measures, but, in prior art, the joint efficiency of bolt and hydraulic dynamometer is not high, affecting the problem of the efficiency of bolt tension force test, the present invention provides a kind of supplementary unit for bolt strength test.
A kind of supplementary unit for bolt strength test provided by the invention is dealt with problems by following technical essential: a kind of supplementary unit for bolt strength test, comprise the first card block and the 2nd card block, described first card block and the 2nd card block are fixedly connected with the first pull bar and the 2nd pull bar respectively, described first pull bar is used for being fixedly connected with of the first card block and hydraulic dynamometer, and described 2nd pull bar is fixedly connected with for the 2nd card block and hydraulic dynamometer;
Described first card block and the 2nd card block are provided with a T-shaped groove, the bottom width of described T-shaped groove is greater than open end width, on first card block, the depth direction of T-shaped groove and the axis direction of the first pull bar are parallel, and on the 2nd card block, the depth direction of T-shaped groove is parallel with the axis direction of the 2nd pull bar; First pull bar and the first card block are in the relation of removably connecting; 2nd pull bar and the 2nd card block are in the relation of removably connecting.
Concrete, when using, on first card block and the 2nd card block, the open end-face opposite of T-shaped groove is arranged, like this, at screw rod to be tested or nut, it is threaded after upper each self-corresponding nut and screw rod, can forming an I-shape construction, the wider part in these I-shape construction two ends is arranged on the bottom of two T-shaped grooves respectively, in the process that the first card block and/or the 2nd card block move with hydraulic dynamometer, tensile stress can be applied on I-shape construction, reach the object of bolt rubbish experiment. Adopt this structure, it is connected to hydraulic dynamometer compared to direct joint bolt, there is the efficiency picking and placeing bolt on hydraulic dynamometer faster than traditional scheme ten times. First pull bar and the first card block are in the relation of removably connecting; 2nd pull bar and the 2nd card block are in the relation of removably connecting, can make when for the bolt of different model or size, the first card block and the 2nd card block being provided with different size T-shaped groove by changing, complete the strength trial of corresponding bolt, namely originally it is provided with to be beneficial to and adopts same first pull bar and the 2nd pull bar, supporting the first different card block and the 2nd card block, just can complete a series of bolt strength tests, be beneficial to the complete popularization of this device. First pull bar and the concrete type of attachment of the first card block, the 2nd pull bar and the 2nd card block, preferably adopt and two T-shaped grooves back-to-back are all set on the first card block and the 2nd card block, the bottom width of T-shaped groove is greater than opening end, it is set on the first pull bar and the 2nd pull bar simultaneously, for the end being connected with the first card block, the 2nd card block respectively, all there is end bulb, end bulb is arranged in the bottom of one of them T-shaped groove, just can well realize the present invention.
Further technical scheme is:
For being beneficial on the first pull bar, the first card block, screw rod or nut cross section each point by the homogeneity of power, the centerline collineation of T-shaped groove on the axis of described first pull bar and the first card block.
For being beneficial on the 2nd pull bar, the 2nd card block, screw rod or nut cross section each point by the homogeneity of power, the centerline collineation of T-shaped groove on the axis of described 2nd pull bar and the 2nd card block.
When not auxiliary screw rod or nut, for making this fixture can at least can be used for the tensile test of the screw rod that two ends are not all provided with the threaded rod of screw cap end, one end is provided with screw cap end, T-shaped groove on first card block and/or be provided with nut in the T-shaped groove on the 2nd card block, described nut is positioned at the bottom of corresponding T-shaped groove.
The present invention has following useful effect:
In this structure, on first card block and the 2nd card block, the open end-face opposite of T-shaped groove is arranged, like this, at screw rod to be tested or nut, it is threaded after upper each self-corresponding nut and screw rod, an I-shape construction can be formed, the wider part in these I-shape construction two ends is arranged on the bottom of two T-shaped grooves respectively, in the process that the first card block and/or the 2nd card block move with hydraulic dynamometer, tensile stress can be applied on I-shape construction, reach the object of bolt rubbish experiment. Adopt this structure, it is connected to hydraulic dynamometer compared to direct joint bolt, there is the efficiency picking and placeing bolt on hydraulic dynamometer faster than traditional scheme ten times.
When for the bolt of different model or size, the first card block and the 2nd card block being provided with different size T-shaped groove by changing, complete the strength trial of corresponding bolt, namely originally it is provided with to be beneficial to and adopts same first pull bar and the 2nd pull bar, supporting the first different card block and the 2nd card block, just can complete a series of bolt strength tests, be beneficial to the complete popularization of this device.
Accompanying drawing explanation
Fig. 1 is the structural representation of an a kind of supplementary unit specific embodiment for bolt strength test of the present invention.
Numbering in figure is followed successively by: 1, the first pull bar, the 2, first card block, and 3, experiment screw, the 4, the 2nd card block, 5, nut, the 6, the 2nd pull bar.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but the structure of the present invention is not limited only to following examples.
Embodiment 1:
As shown in Figure 1, a kind of supplementary unit for bolt strength test, comprise the first card block 2 and the 2nd card block 4, described first card block 2 and the 2nd card block 4 are fixedly connected with the first pull bar 1 and the 2nd pull bar 6 respectively, described first pull bar 1 is fixedly connected with for the first card block 2 and hydraulic dynamometer, and described 2nd pull bar 6 is fixedly connected with for the 2nd card block 4 and hydraulic dynamometer;
Described first card block 2 and the 2nd card block 4 are provided with a T-shaped groove, the bottom width of described T-shaped groove is greater than open end width, on first card block 2, the depth direction of T-shaped groove is parallel with the axis direction of the first pull bar 1, and on the 2nd card block 4, the depth direction of T-shaped groove is parallel with the axis direction of the 2nd pull bar 6; First pull bar 1 and the first card block 2 are in the relation of removably connecting; 2nd pull bar 6 and the 2nd card block 4 are in the relation of removably connecting.
In the present embodiment, on first card block 2 and the 2nd card block 4, the open end-face opposite of T-shaped groove is arranged, like this, at screw rod to be tested or nut 5, it is threaded after upper each self-corresponding nut 5 and screw rod, an I-shape construction can be formed, the wider part in these I-shape construction two ends is arranged on the bottom of two T-shaped grooves respectively, such as the experiment screw 3 that arranges in Fig. 1 for upper end is provided with the single ended bolt of nut 5 end, after lower end is threaded nut 5, can be held between the first card block 2 and the 2nd card block 4. In the process that the first card block 2 and/or the 2nd card block 4 move with hydraulic dynamometer, tensile stress can be applied on I-shape construction, reach the object of bolt rubbish experiment. Adopt this structure, it is connected to hydraulic dynamometer compared to direct joint bolt, there is the efficiency picking and placeing bolt on hydraulic dynamometer faster than traditional scheme ten times.
In the present embodiment, when for the bolt of different model or size, the first card block 2 and the 2nd card block 4 being provided with different size T-shaped groove by changing, complete the strength trial of corresponding bolt, namely originally it is provided with to be beneficial to and adopts same first pull bar 1 and the 2nd pull bar 6, supporting the first different card block 2 and the 2nd card block 4, just can complete a series of bolt strength tests, be beneficial to the complete popularization of this device.
Embodiment 2:
As shown in Figure 1, the present embodiment is further qualified on the basis of embodiment 1: for being beneficial on the first pull bar 1, first card block 2, screw rod or nut 5 cross section each point by the homogeneity of power, the centerline collineation of T-shaped groove on the axis of described first pull bar 1 and the first card block 2.
For being beneficial on the 2nd pull bar 6, the 2nd card block 4, screw rod or nut 5 cross section each point by the homogeneity of power, the centerline collineation of T-shaped groove on the axis of described 2nd pull bar 6 and the 2nd card block 4.
When not auxiliary screw rod or nut 5, for making this fixture can at least can be used for the tensile test of the screw rod that two ends are not all provided with the threaded rod of nut 5 end, one end is provided with nut 5 end, T-shaped groove on first card block 2 and/or be provided with nut 5 in the T-shaped groove on the 2nd card block 4, described nut 5 is positioned at the bottom of corresponding T-shaped groove.
Above content is further description the present invention done in conjunction with concrete preferred implementation, can not assert that the specific embodiment of the present invention is confined to these explanations. For general technical staff of the technical field of the invention, other enforcement modes drawn under the technical scheme not departing from the present invention, all should be included in protection scope of the present invention.

Claims (4)

1. the supplementary unit for bolt strength test, it is characterized in that, comprise the first card block (2) and the 2nd card block (4), described first card block (2) and the 2nd card block (4) are fixedly connected with the first pull bar (1) and the 2nd pull bar (6) respectively, described first pull bar (1) is fixedly connected with for the first card block (2) and hydraulic dynamometer, and described 2nd pull bar (6) is fixedly connected with for the 2nd card block (4) and hydraulic dynamometer;
Described first card block (2) and the 2nd card block (4) are provided with a T-shaped groove, the bottom width of described T-shaped groove is greater than open end width, the depth direction of the upper T-shaped groove of the first card block (2) is parallel with the axis direction of the first pull bar (1), and the depth direction of the upper T-shaped groove of the 2nd card block (4) is parallel with the axis direction of the 2nd pull bar (6); First pull bar (1) and the first card block (2) are in the relation of removably connecting; 2nd pull bar (6) and the 2nd card block (4) are in the relation of removably connecting.
2. a kind of supplementary unit for bolt strength test according to claim 1, it is characterised in that, the centerline collineation of the axis of described first pull bar (1) and the upper T-shaped groove of the first card block (2).
3. a kind of supplementary unit for bolt strength test according to claim 1, it is characterised in that, the centerline collineation of the axis of described 2nd pull bar (6) and the upper T-shaped groove of the 2nd card block (4).
4. a kind of supplementary unit for bolt strength test according to claim 1, it is characterized in that, T-shaped groove on first card block (2) and/or be provided with nut (5) in the T-shaped groove on the 2nd card block (4), described nut (5) is positioned at the bottom of corresponding T-shaped groove.
CN201610114108.2A 2016-03-01 2016-03-01 Auxiliary device used for bolt strength test Pending CN105628495A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610114108.2A CN105628495A (en) 2016-03-01 2016-03-01 Auxiliary device used for bolt strength test

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610114108.2A CN105628495A (en) 2016-03-01 2016-03-01 Auxiliary device used for bolt strength test

Publications (1)

Publication Number Publication Date
CN105628495A true CN105628495A (en) 2016-06-01

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Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105890982A (en) * 2016-06-29 2016-08-24 爱佩仪中测(成都)精密仪器有限公司 Device for testing fatigue of connecting piece of one-arm three-dimensional measurement scribing instrument

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4768895A (en) * 1987-06-08 1988-09-06 Avm, Inc. Captive ball and socket joint
CN201852741U (en) * 2010-10-29 2011-06-01 内蒙古第一机械制造(集团)有限公司 Special fixture for bolt tension test
CN102507325A (en) * 2011-11-28 2012-06-20 芜湖市中兴机械技术开发有限公司 Thread testing process device and testing method
CN202735159U (en) * 2012-06-23 2013-02-13 云南省建筑科学研究院 Detecting clamp for high strength bolt fastener load-guarantee
CN202735158U (en) * 2012-06-23 2013-02-13 云南省建筑科学研究院 Tensile strength detecting clamp of double thread screw
CN103592178A (en) * 2012-08-14 2014-02-19 天津建筑机械厂 M20*1.5 bolt tensile test clamping tool
CN203772637U (en) * 2014-02-25 2014-08-13 深圳市特种设备安全检验研究院 Minimum bolt tensile load test fixture
CN203824832U (en) * 2014-03-12 2014-09-10 潍柴动力股份有限公司 Bolt tensile test tool

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4768895A (en) * 1987-06-08 1988-09-06 Avm, Inc. Captive ball and socket joint
CN201852741U (en) * 2010-10-29 2011-06-01 内蒙古第一机械制造(集团)有限公司 Special fixture for bolt tension test
CN102507325A (en) * 2011-11-28 2012-06-20 芜湖市中兴机械技术开发有限公司 Thread testing process device and testing method
CN202735159U (en) * 2012-06-23 2013-02-13 云南省建筑科学研究院 Detecting clamp for high strength bolt fastener load-guarantee
CN202735158U (en) * 2012-06-23 2013-02-13 云南省建筑科学研究院 Tensile strength detecting clamp of double thread screw
CN103592178A (en) * 2012-08-14 2014-02-19 天津建筑机械厂 M20*1.5 bolt tensile test clamping tool
CN203772637U (en) * 2014-02-25 2014-08-13 深圳市特种设备安全检验研究院 Minimum bolt tensile load test fixture
CN203824832U (en) * 2014-03-12 2014-09-10 潍柴动力股份有限公司 Bolt tensile test tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105890982A (en) * 2016-06-29 2016-08-24 爱佩仪中测(成都)精密仪器有限公司 Device for testing fatigue of connecting piece of one-arm three-dimensional measurement scribing instrument

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Application publication date: 20160601