CN205237867U - A clamping device for making run through coarse crack test piece - Google Patents

A clamping device for making run through coarse crack test piece Download PDF

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Publication number
CN205237867U
CN205237867U CN201521037781.8U CN201521037781U CN205237867U CN 205237867 U CN205237867 U CN 205237867U CN 201521037781 U CN201521037781 U CN 201521037781U CN 205237867 U CN205237867 U CN 205237867U
Authority
CN
China
Prior art keywords
bearing plate
test piece
anchor clamps
hand wheel
clamping
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.)
Expired - Fee Related
Application number
CN201521037781.8U
Other languages
Chinese (zh)
Inventor
姜宝凤
贺广良
方鹏飞
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.)
Shandong University of Science and Technology
Original Assignee
Shandong University of Science and Technology
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 Shandong University of Science and Technology filed Critical Shandong University of Science and Technology
Priority to CN201521037781.8U priority Critical patent/CN205237867U/en
Application granted granted Critical
Publication of CN205237867U publication Critical patent/CN205237867U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a clamping device for making run through coarse crack test piece, by anchor clamps, it constitutes with lower bearing plate to go up the bearing plate, wherein, anchor clamps include the anchor clamps seat, the hand wheel, centre gripping screw and dovetail plate, be equipped with dovetail plate above the anchor clamps seat, hand wheel and centre gripping screw, dovetail plate passes through the inside drilling depth of hand wheel, be used for the fixed bearing plate of going up, set up a rectangle recess in the anchor clamps seat, be used for placing down the bearing plate, go up the bearing plate, set up the arc recess down in the bearing plate respectively, arc recess bottom sets up the V type groove that can place thin ironbar, put into anchor clamps with the test piece, make thin ironbar aim at the straight line that the test piece tip paralleled to the axis, after the alignment is confirmed, fasten the test piece with the centre gripping screw, place the device on compression testing machine, when compression testing machine produces stress, loosen the centre gripping screw, continue the pressurization, can have the test piece that runs through the crack roughly, the utility model discloses novel structure, the easy grasp easy and simple to handle, the security is high, and the success rate is high.

Description

A kind of for making the clamping device that runs through coarse crack test specimen
Technical field
The utility model relates to civil engineering Rock Mechanics Test And field, a kind ofly specifically forms for the center splitting of cylinder test specimen a kind of clamping device that runs through coarse crack.
Background technology
Along with China drops in a large number to metro construction, make subway tunnel construction enter the gold period of high speed development, also some insoluble technical topic---rock crannies of raising difficult questions for discussion have been there are simultaneously, as everyone knows, rock mass is by sillar and structural plane (joint, crack, fault plane) composition, in rock mass, exist numerous cracks and crack coarse, bring potential safety hazard to constructing tunnel waterproof and later stage operation, therefore, need badly and carry out, solve the basic research work about crack rock mechanical property and failure mechanism thereof, but due to the complicated operation of field trial, length expends time in, cost is higher, the effects limit such as test effect is not obvious, the Related Experimental Study of crack rock roughness is undertaken by laboratory test mostly at present, in the rock mass of research crack roughness, for manufacture of intraocular runs through coarse crack test specimen, adopt improved Brazilian diametral compression test method to obtain and run through coarse crack test specimen, the present invention is based on the general principle of Brazilian splitting, for carrying out accurately the splitting of test specimen center in traditional splitting, test effect is undesirable, the problems such as mortality height, design a kind of new test fixture device, can produce the test specimen that manually runs through coarse crack.
Summary of the invention
In order to overcome the deficiency existing in traditional splitting, it is a kind of for making the clamping device that runs through coarse crack test specimen that the utility model provides, its easy grasp simple to operate, and safe, repeatable utilization rate is high, and success rate is high.
It is a kind of for making the clamping device that runs through coarse crack test specimen that the utility model provides, by fixture, upper bearing plate and lower bearing plate composition, wherein, fixture comprises clamping fixture seat, hand wheel, clamp screws and coattail board, above clamping fixture seat, be provided with coattail board, hand wheel and clamp screws, coattail board is by the inside drilling depth of hand wheel, for fixing upper bearing plate, in clamping fixture seat, offer a rectangular recess, be used for placing lower bearing plate, upper bearing plate, in lower bearing plate, arc groove is set respectively, arc groove bottom arranges the V-type groove that can place thin iron bar, test specimen is put into fixture, make thin iron bar aim at the straight line that test piece end parallels to the axis, after aligning is determined, carry out fastening to test specimen by clamp screws, this device is placed on pressure testing machine, in the time that pressure testing machine produces stress, clamp screws is unclamped, continue pressurization, can obtain the test specimen that runs through crack with coarse.
Compared with prior art, the utility model is a kind of for the advantage of making the clamping device that runs through coarse crack test specimen is.
(1) problem that has overcome traditional splitting and cannot carry out accurately the splitting of test specimen center, increases substantially success rate.
(2) the coarse crack test specimen that runs through of making has well reduced the stochastic behaviour in Test in Situ crack, makes experimental study have more significance of scientific research.
(3) this device is easy and simple to handle, easily grasps, safe and reliable.
Brief description of the drawings
Fig. 1 is front view of the present utility model.
Fig. 2 is left view of the present utility model.
In figure: 1-fixture, the upper bearing plate of 2-, bearing plate under 3-, the thin steel bar of 4-, 5-V type groove, 6-test specimen, 7-clamp screws, 8-hand wheel, 9-coattail board, 10-clamping fixture seat.
Detailed description of the invention
It is a kind of for making the clamping device that runs through coarse crack test specimen that the utility model provides, and for technical scheme that the utility model is realized, reach object and effect characteristic is more explicit, below in conjunction with accompanying drawing, its detailed description of the invention is further elaborated.
As shown in Figure 1, it is a kind of for making the clamping device that runs through coarse crack test specimen that the utility model provides, by fixture 1, upper bearing plate 2 and lower bearing plate 3 form, wherein, fixture 1 comprises clamping fixture seat 10, hand wheel 8, clamp screws 7 and coattail board 9, clamping fixture seat 10 is provided with coattail board 9 above, hand wheel 8 and clamp screws 7, coattail board 9 is by the inside drilling depth of hand wheel 8, for fixing upper bearing plate 2, in clamping fixture seat 10, offer a rectangular recess, be used for placing lower bearing plate 3, upper bearing plate 2, the interior arc groove that arranges respectively of lower bearing plate 3, arc groove bottom arranges the V-type groove 5 that can place thin iron bar 4, test specimen 6 is put into fixture 1, 6 of test specimens are to be undertaken fastening by clamp screws 7, this device is placed on pressure testing machine, in the time that pressure testing machine produces stress, clamp screws is unclamped, continue pressurization, can obtain the test specimen that runs through crack with coarse.
The mode that specifically performs of the present utility model is, at the two ends of test specimen end face diameter, respectively draw a straight line paralleling to the axis as loading baseline, test specimen 6 is put into fixture 1, allow the thin steel bar being placed in V-type groove 5 aim at loading baseline, fixedly secure by two ends clamp screws 7.

Claims (1)

1. one kind for making the clamping device that runs through coarse crack test specimen, by fixture, upper bearing plate and lower bearing plate composition, wherein, fixture comprises clamping fixture seat, hand wheel, clamp screws and coattail board, above clamping fixture seat, be provided with coattail board, hand wheel and clamp screws, coattail board is by the inside drilling depth of hand wheel, for fixing upper bearing plate, in clamping fixture seat, offer a rectangular recess, be used for placing lower bearing plate, upper bearing plate, in lower bearing plate, arc groove is set respectively, arc groove bottom arranges the V-type groove that can place thin iron bar, test specimen is put into fixture, test specimen is to be undertaken fastening by clamp screws, this device is placed on pressure testing machine, in the time that pressure testing machine produces stress, clamp screws is unclamped, continue pressurization, can obtain the test specimen that runs through crack with coarse.
CN201521037781.8U 2015-12-15 2015-12-15 A clamping device for making run through coarse crack test piece Expired - Fee Related CN205237867U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201521037781.8U CN205237867U (en) 2015-12-15 2015-12-15 A clamping device for making run through coarse crack test piece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201521037781.8U CN205237867U (en) 2015-12-15 2015-12-15 A clamping device for making run through coarse crack test piece

Publications (1)

Publication Number Publication Date
CN205237867U true CN205237867U (en) 2016-05-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201521037781.8U Expired - Fee Related CN205237867U (en) 2015-12-15 2015-12-15 A clamping device for making run through coarse crack test piece

Country Status (1)

Country Link
CN (1) CN205237867U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106153422A (en) * 2016-08-08 2016-11-23 绍兴文理学院 The method and apparatus for making multiple dimensioned Multiple Shape rock fracture that a kind of roughness is controlled
CN106706513A (en) * 2017-03-10 2017-05-24 长沙理工大学 Test method and evaluation method for testing road surface ice-road adhesion strength
CN108762115A (en) * 2018-04-18 2018-11-06 中国地质大学(武汉) A kind of automatic control device and method for realizing rock joint contact condition
CN108918262A (en) * 2018-05-17 2018-11-30 中国工程物理研究院化工材料研究所 A kind of Brazilian test device in situ suitable for X-ray CT system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106153422A (en) * 2016-08-08 2016-11-23 绍兴文理学院 The method and apparatus for making multiple dimensioned Multiple Shape rock fracture that a kind of roughness is controlled
CN106153422B (en) * 2016-08-08 2018-10-19 绍兴文理学院 A kind of method and apparatus for making multiple dimensioned Multiple Shape rock fracture that roughness is controllable
CN106706513A (en) * 2017-03-10 2017-05-24 长沙理工大学 Test method and evaluation method for testing road surface ice-road adhesion strength
CN108762115A (en) * 2018-04-18 2018-11-06 中国地质大学(武汉) A kind of automatic control device and method for realizing rock joint contact condition
CN108918262A (en) * 2018-05-17 2018-11-30 中国工程物理研究院化工材料研究所 A kind of Brazilian test device in situ suitable for X-ray CT system

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160518

Termination date: 20161215

CF01 Termination of patent right due to non-payment of annual fee