CN105806702B - For the fixture on horizontal the steel strand relaxation test machine - Google Patents
For the fixture on horizontal the steel strand relaxation test machine Download PDFInfo
- Publication number
- CN105806702B CN105806702B CN201610216296.XA CN201610216296A CN105806702B CN 105806702 B CN105806702 B CN 105806702B CN 201610216296 A CN201610216296 A CN 201610216296A CN 105806702 B CN105806702 B CN 105806702B
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- sleeve
- endoporus
- diameter
- automatic centering
- centering plate
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
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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 a kind of fixtures on horizontal the steel strand relaxation test machine.Including be connected on fixed cross beam load sensor, matched by frusto-conical collet and the sleeve to match with the collet, the inner surface of sleeve and the circular conical surface of collet that at least two pieces of grip blocks are combined into, the center of collet has holding holes；Automatic centering plate is equipped between sleeve and load sensor, one end of automatic centering plate is equipped with the ball-and-socket of indent, the spherical outside surface being correspondingly arranged with sleeve one end is adapted；The other end of sleeve is threaded with clamp nut so that each grip block uniform force is not easy clamping stagnation, damage, and sample is not easy to clamping stagnation in tapered sleeve, facilitates taking-up；While internal conical surface axial movement of each grip block along sleeve, sleeve can rotate on automatic centering plate, further improve accuracy of alignment, also be improved the accuracy of test result；The fixture of the present invention is additionally provided with protective jacket, the safety of the experiment of guarantee.
Description
Technical field
The present invention relates to a kind of testing machine fixture, a kind of specifically folder for horizontal the steel strand relaxation test machine
Tool.
Background technology
During the foundation constructions such as bridge, highway, especially in prestressed concrete construction, steel strand is largely used
Line, due to steel strand wires pulling force and stress for construction quality have conclusive effect, usually before construction and
In work progress, to the steel strand wires that use carry out the tensile properties parameters such as tensile strength, stretching force, maximum, force, percentage of total elongation with
And stress relaxation forces, relaxation stress, relaxation force iso-stress relaxation property parameter are tested, existing stretching relaxation testing machine can
It needs the both ends of steel strand wires to be clamped to be measured these performances, before test, wire-clamping device is generally only common folder
Head has a small amount of skidding when steel strand wires under tension between steel strand wires and wire-clamping device, influence the standard of last measurement result
True property.Someone improves existing fixture thus, as State Intellectual Property Office disclosed on 2 6th, 2013 by Ruan
Hai Xiang, Ruan Weixin, Xu Feng design, a kind of entitled clamp dress stretching relaxation testing machine of Patent No. 201220300332.8
The utility model patent set, including a frusto-conical collet being combined into of several pieces of small fixture blocks and one match with it
Sleeve there is on the circular conical surface of collet external screw thread, the inner surface of sleeve and the circular conical surface of collet to match, the inner surface of sleeve
With internal thread, external screw thread matches with internal thread, and the center of collet has holding holes, has on the inner surface of holding holes several
Item and the perpendicular anti-sliding rib of collet axis line.The wire-clamping device is matched with the screw thread on the conical surface of sleeve by collet, makes rotation
Each small fixture block is moved to the center of collet when rotaring sleeve, to which steel strand wires are clamped, and anti-sliding rib is provided in holding holes,
It can prevent skidding of the steel strand wires when under tension acts on.But due to prestress wire by more steel wires in wire stranding machine
High speed rotation under be twisted together and form, outer surface is not the cylindrical surface of rule, and due to having circumferential gap between each small fixture block
Presence, after sample is inserted into the holding holes of fixture, each small fixture block of fixture and non-concurrent to collet when turnbarrel
Center is moved, and is reduced so as to cause accuracy of alignment, and test result is inaccurate；Sample contacts bad, each small fixture block with small fixture block
Stress is also uneven, is easily damaged, and sample clamping stagnation is not easily taken out in tapered sleeve；And unshielded device, sample is broken or other
When maloperation, sleeve, small fixture block can fall or fly out from equipment, cause the accident.
Invention content
It is an object of the invention to overcome the deficiencies of the prior art and provide one kind to neutral good, chucking power uniformly, not rapid wear
Bad, the quick detachable taking-up of sample and the fixture being used on horizontal the steel strand relaxation test machine with protective device.
Present invention technical solution used for the above purpose is：
A kind of fixture on horizontal the steel strand relaxation test machine, including the load sensing that is connected on fixed cross beam
Device, by frusto-conical collet that at least two pieces of grip blocks are combined into and the sleeve to match with the collet, the inner surface of sleeve
Match with the circular conical surface of collet, there are holding holes, the inner surface of holding holes to be equipped with anti-sliding rib at the center of collet, and feature exists
In：Be equipped with automatic centering plate between the sleeve and load sensor, one end of automatic centering plate be equipped with indent ball-and-socket, with
The spherical outside surface that sleeve one end is correspondingly arranged is adapted；The other end of sleeve is threaded with clamp nut, the inner end of clamp nut
Face pressure leans against the end of grip block larger diameter end, and clamp nut is equipped with the centre bore that diameter is more than sample outer diameter；Automatic centering plate
It is more than the outer diameter of sample equipped with diameter and more than the centre bore of grip block smaller diameter end outer diameter；The outside of automatic centering plate is placed in fixed
In first endoporus of position set, sleeve is placed in the second endoporus of positioning sleeve；Positioning sleeve is fixed on fixed cross beam.
In order to facilitate the installation of, the load sensor selects it to be carried the sensor of boss by pressure end, and described is automatic
The other end of centering plate is equipped with positioning compatible with boss rim of the mouth.
Sleeve rotates therewith when rotating clamp nut in order to prevent, and the side wall of the positioning sleeve is equipped with rotation stop pin through-hole, set
Rotation stop pin blind hole is correspondingly provided on cylinder, rotation stop pin passes through rotation stop pin through-hole to can be inserted into rotation stop pin blind hole.
In order to test safety, the wall outer surface far from its first endoporus is threaded with protection on the positioning sleeve
Set, protective jacket are equipped with the centre bore that diameter is more than sample outer diameter.
In order to initial easy for installation, the end of the larger diameter end of the grip block is equipped with card slot.
As the preferred structure of the present invention, the grip block is three, is uniformly distributed circumferentially.
In the present invention, the diameter of the first endoporus and the second female coaxial of the positioning sleeve, the first endoporus is more than in second
The diameter in hole；The outer diameter of the sleeve is less than the diameter of the second endoporus；The outer diameter of the automatic centering plate is less than the first endoporus
Diameter.
In the present invention, the depth of second endoporus is more than the thickness of the height and automatic centering plate of load sensor boss
The sum of.
To facilitate installation, there is the positioning sleeve one end of the first endoporus to be equipped with outer boss flange, set on outer boss flange
There are through-hole corresponding with the mounting hole of load sensor, screw to pass through the mounting hole of the through-hole and load sensor by load sensing
Device and positioning sleeve are fixed on fixed cross beam.
The course of work of the present invention is as follows：
Applying mould oil in sleeve before starting experiment, when installing collet prevents grip block clamping stagnation, in the rotation stop pin of positioning sleeve
It is inserted into rotation stop pin in the rotation stop pin blind hole of through-hole and sleeve, sample is inserted into the holding holes of collet, then revolves clamp nut
It is connected on sleeve, clamp nut compression clamping block is made to clamp sample, then transfer to rotation stop pin；Protective jacket is screwed in positioning sleeve
On can proceed by experiment.
The present invention has the advantages that compared with the prior art：
The fixture of the present invention being used on horizontal the steel strand relaxation test machine, which is provided with automatic centering plate, when sample is inserted
After entering in the holding holes of collet, when rotatably compressing nut each grip block of collet by clamp nut inner face and meanwhile be pressed against
The end of grip block larger diameter end, promotes each grip block axially simultaneously mobile and then sample is pressed from both sides in generation radial displacement
Tightly, sample contacts well with grip block, each grip block uniform force, is not easy clamping stagnation, damage, and sample is not easy to clamping stagnation in tapered sleeve
It is interior, facilitate taking-up；While internal conical surface axial movement of each grip block along sleeve, sleeve can be in the ball on automatic centering plate
Rotation in nest, it is not coaxial caused by adjust processing or installation etc., accuracy of alignment is further improved, the standard of test result is also made
True property is improved；The fixture of the present invention is additionally provided with protective jacket, the safety of the experiment of guarantee.
Description of the drawings
Fig. 1 is the schematic diagram of the present invention.
Fig. 2 is the A-A schematic cross-sectional views in Fig. 1.
Fig. 3 is the schematic front view of the positioning sleeve in the present invention.
Fig. 4 is that the right side of the positioning sleeve in the present invention regards schematic diagram.
Fig. 5 is the schematic front view of the automatic centering plate in the present invention.
Fig. 6 is that the right side of the automatic centering plate in the present invention regards schematic diagram.
Fig. 7 is the schematic front view of the sleeve in the present invention.
Fig. 8 is that the right side of the sleeve in the present invention regards schematic diagram.
In figure：1- protective jackets, 2- clamp nuts, 3- grip blocks, 4- sleeves, 5- positioning sleeves, 6- rotation stop pins, 7- automatic centerings
Plate, 8- screws, 9- load sensors, 10- fixed cross beams, 11- holding holes, 12- card slots, the outer boss flanges of 13-, 14- rotation stop pins are logical
Hole, 15- through-holes, the first endoporus of 16-, the second endoporus of 17-, 18- positioning rim of the mouth, 19- ball-and-sockets, 20- spherical outside surfaces, 21- rotation stop pins are blind
Hole.
Specific implementation mode
In order to clarify the technical characteristics of the invention, below by specific implementation mode, and in conjunction with attached drawing, to the present invention
It is described further.
With reference to figure 1, Fig. 2, a kind of fixture on horizontal the steel strand relaxation test machine, fixed cross beam is equipped with locator
Mouthful, the non-stress end of load sensor is placed in the positioning rim of the mouth；Positioning sleeve has the first endoporus and the second endoporus, positions tackling
There is one end of the first endoporus to be equipped with outer boss flange, outer boss flange is equipped with through-hole corresponding with the mounting hole of load sensor, spiral shell
Load sensor and positioning sleeve are fixed on fixed cross beam by the mounting hole followed closely across the through-hole and load sensor；Load sensing
Device is carried boss, the ectosphere that one end of automatic centering plate is equipped with the ball-and-socket of indent and sleeve one end is correspondingly arranged by pressure end
Face is adapted；Automatic centering plate between sleeve and load sensor, the other end of automatic centering plate be equipped with it is described convex
The compatible positioning rim of the mouth of platform, the outside of automatic centering plate are placed in the first endoporus of positioning sleeve, and sleeve is placed in the of positioning sleeve
In two endoporus；The frusto-conical collet that the grip block being uniformly distributed circumferentially by 3 pieces is combined into matches with sleeve, sleeve
The circular conical surface of inner surface and collet matches, and there are holding holes, the inner surface of holding holes to be equipped with anti-sliding rib, folder at the center of collet
The end for holding the larger diameter end of block is equipped with card slot, and each grip block of inserting spring card or the avoidable collet of O-ring dissipates in card slot
It opens, is picked and placeed convenient for management and entirety；The other end of sleeve is threaded with clamp nut, and the inner face of clamp nut is pressed against folder
The end of block larger diameter end is held, clamp nut is equipped with the centre bore that diameter is more than sample outer diameter；It is big that automatic centering plate is equipped with diameter
Outer diameter in sample and the centre bore more than grip block smaller diameter end outer diameter；The first endoporus and the second female coaxial of positioning sleeve,
The diameter of first endoporus is more than the diameter of the second endoporus, and the outer diameter of sleeve is less than the diameter of the second endoporus, automatic centering plate it is outer
Diameter is less than the diameter of the first endoporus, and the depth of the second endoporus is more than the thickness of the height and automatic centering plate of load sensor boss
The sum of；The side wall of positioning sleeve is equipped with rotation stop pin through-hole, and rotation stop pin blind hole is correspondingly provided on sleeve, and rotation stop pin passes through rotation stop pin through-hole
It can be inserted into rotation stop pin blind hole；The wall outer surface far from its first endoporus is threaded with protective jacket, protective jacket on positioning sleeve
It is more than the centre bore of sample outer diameter equipped with diameter.
The course of work of the present embodiment is as follows：
Applying mould oil in sleeve 4 before starting experiment, when installing collet prevents 3 clamping stagnation of grip block, in the rotation stop of positioning sleeve 5
It sells and is inserted into rotation stop pin 6 in the rotation stop pin blind hole 21 of through-hole 14 and sleeve 4, sample is inserted into the holding holes 11 of collet, then will
Clamp nut 2 is screwed on sleeve 4, makes 4 compression clamping block 3 of clamp nut, then transfers to rotation stop pin 6；Protective jacket 1 is screwed in
On positioning sleeve 5, you can proceed by experiment.
Claims (3)
1. a kind of fixture on horizontal the steel strand relaxation test machine, including be connected on fixed cross beam load sensor,
By frusto-conical collet that at least two pieces of grip blocks are combined into and the sleeve to match with the collet, the inner surface and folder of sleeve
The circular conical surface of head matches, and there are holding holes, the inner surface of holding holes to be equipped with anti-sliding rib at the center of collet, it is characterised in that：
Automatic centering plate is equipped between the sleeve and load sensor, one end of automatic centering plate is equipped with the ball-and-socket and set of indent
The spherical outside surface that cylinder one end is correspondingly arranged is adapted；The other end of sleeve is threaded with clamp nut, the inner face of clamp nut
It is pressed against the end of grip block larger diameter end, clamp nut is equipped with the centre bore that diameter is more than sample outer diameter；Automatic centering plate is set
There is diameter to be more than the outer diameter of sample and the centre bore more than grip block smaller diameter end outer diameter；The outside of automatic centering plate is placed in positioning
In first endoporus of set, sleeve is placed in the second endoporus of positioning sleeve；Positioning sleeve is fixed on fixed cross beam；
The load sensor is carried boss by pressure end, and the other end of the automatic centering plate is equipped with mutually fits with the boss
The positioning rim of the mouth matched；
The side wall of the positioning sleeve is equipped with rotation stop pin through-hole, and rotation stop pin blind hole is correspondingly provided on sleeve, and rotation stop pin passes through rotation stop pin
Through-hole can be inserted into rotation stop pin blind hole；
The end of the larger diameter end of the grip block is equipped with card slot；
The first endoporus and the second female coaxial of the positioning sleeve, the diameter of the first endoporus are more than the diameter of the second endoporus；It is described
The outer diameter of sleeve is less than the diameter of the second endoporus；The outer diameter of the automatic centering plate is less than the diameter of the first endoporus；
The depth of second endoporus is more than the sum of the thickness of the height and automatic centering plate of load sensor boss；
There is the positioning sleeve one end of the first endoporus to be equipped with outer boss flange, and outer boss flange is equipped with the peace with load sensor
The corresponding through-hole in hole is filled, screw passes through the mounting hole of the through-hole and load sensor to be fixed on load sensor and positioning sleeve
Determine on crossbeam.
2. the fixture according to claim 1 on horizontal the steel strand relaxation test machine, it is characterised in that：Described determines
Position puts on the wall outer surface far from its first endoporus and is threaded with protective jacket, and protective jacket is equipped with diameter and is more than sample outer diameter
Centre bore.
3. the fixture according to claim 1 on horizontal the steel strand relaxation test machine, it is characterised in that：The folder
It is three to hold block, is uniformly distributed circumferentially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610216296.XA CN105806702B (en) | 2016-04-10 | 2016-04-10 | For the fixture on horizontal the steel strand relaxation test machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610216296.XA CN105806702B (en) | 2016-04-10 | 2016-04-10 | For the fixture on horizontal the steel strand relaxation test machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105806702A CN105806702A (en) | 2016-07-27 |
| CN105806702B true CN105806702B (en) | 2018-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610216296.XA Active CN105806702B (en) | 2016-04-10 | 2016-04-10 | For the fixture on horizontal the steel strand relaxation test machine |
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| CN (1) | CN105806702B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111238926B (en) * | 2020-03-23 | 2022-04-15 | 浙江义宇仪器设备有限公司 | Clamp for steel strand testing machine |
| CN112033791A (en) * | 2020-08-03 | 2020-12-04 | 马鞍山市顺泰稀土新材料有限公司 | Pressing mechanism of prestressed clip type anchor working clip |
| CN112255089A (en) * | 2020-11-10 | 2021-01-22 | 中国矿业大学(北京) | Card formula minor diameter reinforcing bar tensile fixture and clamping structure |
| CN113176139A (en) * | 2021-06-11 | 2021-07-27 | 深圳万测试验设备有限公司 | Self-adaptive coaxial adjusting mechanism |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2331718Y (en) * | 1998-08-11 | 1999-08-04 | 江苏神威集团有限公司 | Anchoring device special for stretching steel twisted line |
| CN201031468Y (en) * | 2007-05-21 | 2008-03-05 | 邵培森 | Novel prestressing force cable anchorage |
| CN101654958A (en) * | 2009-09-04 | 2010-02-24 | 赵正义 | Post-tensioning no-cohesive prestressed reinforcement pre-tensioning structure and method |
| CN202562808U (en) * | 2012-05-07 | 2012-11-28 | 长春新试验机有限责任公司 | Sample prestress clamping device |
| CN203132856U (en) * | 2013-04-04 | 2013-08-14 | 黑龙江科技学院 | Static-load anchoring experiment device |
| CN203270945U (en) * | 2013-04-19 | 2013-11-06 | 安徽金星预应力工程技术有限公司 | Self-centering vector-type anchorage device |
| CN204919994U (en) * | 2015-08-21 | 2015-12-30 | 北京市巧力神液压机具厂 | Swivel nut adjustment formula ground tackle |
| CN205506555U (en) * | 2016-04-10 | 2016-08-24 | 济南天辰试验机制造有限公司 | A anchor clamps for on horizontal steel strand wires relaxation testing machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO931702D0 (en) * | 1993-05-10 | 1993-05-10 | Svein Ove Johnsen | Self-drilling blind nails as well as device for use in blind nailing |
-
2016
- 2016-04-10 CN CN201610216296.XA patent/CN105806702B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2331718Y (en) * | 1998-08-11 | 1999-08-04 | 江苏神威集团有限公司 | Anchoring device special for stretching steel twisted line |
| CN201031468Y (en) * | 2007-05-21 | 2008-03-05 | 邵培森 | Novel prestressing force cable anchorage |
| CN101654958A (en) * | 2009-09-04 | 2010-02-24 | 赵正义 | Post-tensioning no-cohesive prestressed reinforcement pre-tensioning structure and method |
| CN202562808U (en) * | 2012-05-07 | 2012-11-28 | 长春新试验机有限责任公司 | Sample prestress clamping device |
| CN203132856U (en) * | 2013-04-04 | 2013-08-14 | 黑龙江科技学院 | Static-load anchoring experiment device |
| CN203270945U (en) * | 2013-04-19 | 2013-11-06 | 安徽金星预应力工程技术有限公司 | Self-centering vector-type anchorage device |
| CN204919994U (en) * | 2015-08-21 | 2015-12-30 | 北京市巧力神液压机具厂 | Swivel nut adjustment formula ground tackle |
| CN205506555U (en) * | 2016-04-10 | 2016-08-24 | 济南天辰试验机制造有限公司 | A anchor clamps for on horizontal steel strand wires relaxation testing machine |
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| Publication number | Publication date |
|---|---|
| CN105806702A (en) | 2016-07-27 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Clamp used for horizontal relaxation testing machine of steel strands Effective date of registration: 20191212 Granted publication date: 20180918 Pledgee: Qilu bank, Limited by Share Ltd, Ji'nan Jigang branch Pledgor: Jinan Tianchen Testing Machine Manufacturing Co., Ltd. Registration number: Y2019370000116 |
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