CN109211667A - A kind of safety protection jacket of the steel strand relaxation test machine - Google Patents
A kind of safety protection jacket of the steel strand relaxation test machine Download PDFInfo
- Publication number
- CN109211667A CN109211667A CN201811068405.3A CN201811068405A CN109211667A CN 109211667 A CN109211667 A CN 109211667A CN 201811068405 A CN201811068405 A CN 201811068405A CN 109211667 A CN109211667 A CN 109211667A
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- CN
- China
- Prior art keywords
- ontology
- counterbore
- steel strand
- safety protection
- test machine
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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
- G01N3/08—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
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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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 safety protection jackets of the steel strand relaxation test machine, including ontology, the ontology is the cylindrical structure that L shape is formed around the circle of body central axis one, and the inside of cylindrical body is equipped with hollow blind hole, annular base is extended to form around in the bottom edge horizontal direction of cylindrical body, and the bottom of pedestal is equipped with the counterbore being recessed upwards, the inner sidewall of counterbore is equipped with internal screw thread, and the medial end of counterbore is equipped with carrying end face；The outboard end of the blind hole sets Packed press plane, and the hatching knurling convenient for hand-held installation is uniformly provided on the upper end side wall of the ontology.The present invention is small in size, is not take up space；The present invention uses the structure of hand screw type, is fixed by internal screw thread, practical, and dress takes convenient and efficient；The configuration of the present invention is simple, production easy to produce；After testing test specimen, it is convenient to clean.
Description
Technical field
The present invention relates to relaxation test equipment technical field, the safety for being related specifically to a kind of the steel strand relaxation test machine is anti-
Sheath.
Background technique
The steel strand relaxation test machine is dedicated steel strand wires, the examination of the relaxation test of the materials such as zinc-coated wire and spiral
Equipment is tested, is widely used in scientific research institutions, quality testing department, building unit, Mechanical Manufacturing Enterprises are the examinations of modern architecture mechanics
The new test equipment tested.Meet GB/T 5224-2014 " steel strand wires for prestressed concrete " GBT 10120-2013 " metal
Material means of constant strain-tensile test method " and GB/T20065 " reinforcing bar for prestressed concrete " requirement, have it is boundless
Market prospects.
Relaxation test is the initial load for applying 70% or 80% maximum, force to test test specimen on testing machine, is guaranteeing to deform
Under conditions of, the relaxation rate of test specimen is measured after 120 hours.It, may be due to test specimen manufacturing process in long-time test process
In cause to be broken there are material internal defect.It is disconnected that the mechanical characteristic of test specimen as relaxation test determines that brittleness is presented in it
It splits, fracture occurs and splashes.If be not protected, it is easy to produce the damage of personnel casualty accidents and equipment.
The safeguard measure that relaxation testing machine majority currently on the market uses places protection for the head-on direction in splashing direction
Plank protects the methods of sandbag or fender pile.Such method has following major defect: not being the protection of enclosure space, exists
Still there is the hidden danger of accident in the space of splashing；Volume is big, occupies the use space of testing machine, becomes the installation of test specimen
It is difficult；Test specimen relic after splashing is difficult to clear up after penetrating protective plate, bag and stake.
Therefore, to defect existing for the above existing issue, it is necessary to be improved.
Summary of the invention
It is anti-it is an object of the invention to aiming at the shortcomings in the prior art, provide a kind of safety of the steel strand relaxation test machine
Sheath, to solve problems of the prior art.
Technical problem solved by the invention can be realized using following technical scheme:
A kind of safety protection jacket of the steel strand relaxation test machine, including ontology, the ontology are L shape around body central axis
The cylindrical structure that one circle is formed, and the inside of cylindrical body is equipped with hollow blind hole, in the bottom edge horizontal direction of cylindrical body
Annular base is extended to form around, and the bottom of pedestal is equipped with the counterbore being recessed upwards, the side wall of counterbore is equipped with internal screw thread,
The medial end of counterbore is equipped with carrying end face；The outboard end of the blind hole sets Packed press plane, the upper end of the ontology
The hatching knurling convenient for hand-held installation is uniformly provided on lateral wall.
Further, the carrying end face is covered in the end of counterbore, and the inside of the edge fitting counterbore of loaded section
Wall.
Further, the material of the ontology uses structural alloy steel.
Further, the blind hole is the sealing space among body interior.
Further, the press plane, pedestal and this body by integral forming.
Further, the press plane is the alloy steel products using selective quenching and hardening.
Compared with prior art, beneficial effects of the present invention are as follows:
The present invention is small in size, is not take up space；The present invention uses the structure of hand screw type, is fixed by internal screw thread, practicability
By force, dress takes convenient and efficient；The configuration of the present invention is simple, production easy to produce；After testing test specimen, it is convenient to clean.
Detailed description of the invention
Fig. 1 is a kind of structure chart of the safety protection jacket of the steel strand relaxation test machine of the present invention.
Fig. 2 is a kind of effect picture of the safety protection jacket of the steel strand relaxation test machine of the present invention.
Fig. 3 is the structure chart of test specimen of the present invention.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
Referring to Fig. 1 to Fig. 3, a kind of safety protection jacket of the steel strand relaxation test machine of the present invention, including ontology 1,
The ontology 1 is the cylindrical structure that L shape is formed around the circle of body central axis one, and the inside of cylindrical body is equipped with hollow blind hole
11, extend to form annular base 12 in the bottom edge horizontal direction of cylindrical body around, and the bottom of pedestal 12 be equipped with it is upward
The counterbore 13 of recess, the side wall of counterbore 13 are equipped with internal screw thread 14, and the medial end of counterbore 13 is equipped with carrying end face 15；It is described blind
The outboard end in hole 11 sets Packed press plane 16, is uniformly provided on the upper end lateral wall of the ontology 1 convenient for hand-held installation
Hatching knurling 17, increasing friction force.
The carrying end face 14 is covered in the end of counterbore 13, and the inside of the edge fitting counterbore 13 of loaded section 14
Wall.
The material of the ontology 1 uses structural alloy steel.
The press plane 16, pedestal 12 and this body by integral forming.
The press plane 16 is that the alloy steel products using selective quenching and hardening have height as the surface of calibration compression
Intensity high rigidity.
Present invention is mainly used for test specimens in the relaxation test of the materials such as steel strand wires, zinc-coated wire and spiral to be broken
It security protection when splashing and is demarcated in machine.
The steel strand relaxation test machine includes sensor module 21, electronic type charging assembly 22, head cover plate 23, from load frame
Frame 24, support leg 26, in machine demarcates reaction frame 27, horizontal frames 28 and test specimen 3 at deck plate 25.The test specimen 3 includes test specimen sheet
Body 31, anchor ring 32 and anchors 33, the test specimen 31 are penetrated and are positioned from the installation through-hole that the steel strand relaxation test machine is equipped with, from
Both ends installation anchor ring 32 and anchors 33 simultaneously make 31 pretension of test specimen, and the protective case 1 is set to by 14 hand rotation set of internal screw thread respectively
The both ends of test specimen 3.
The operating process of the steel strand relaxation test machine is: placing test specimen ontology 31 → installation anchor ring 32 and anchors 33 → installation
Safety protection jacket 1 → starting testing machine → application given load → starts to test and record (SERVO CONTROL test piece deformation) → test
End → disassembly test specimen ontology 31.
The course of work of the steel strand relaxation test machine: horizontal frames 28 and deck plate 25 are each function zero of matrix arrangement
Part；The counter-force that test (load) power is born from load-bearing frame 24, referred to as from load.The examination of 22 pairs of electronic type charging assembly installations
Part 3 applies test force, and carries out SERVO CONTROL, remains unchanged deformation of the test specimen 33 under ordinance load during test.It passes
The effect of sensor component 21 is real-time measurement test force, and positions test specimen 3.It is to sensor in the machine calibration effect of reaction frame 27
Load sensor in component 21 is demarcated according to measurement Law.The metering mark of load sensor in shown sensor module 21
It surely is that numeric ratio pair is carried out by the standard and load sensor of metrological service, load is implemented by electronic type charging assembly 22,
Counter-force is loaded by bearing in machine calibration 27 frame of counter-force.
The present invention is small in size, is not take up space；The present invention uses the structure of hand screw type, is fixed by internal screw thread, practicability
By force, dress takes convenient and efficient；The configuration of the present invention is simple, production easy to produce；After testing test specimen, it is convenient to clean.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (6)
1. a kind of safety protection jacket of the steel strand relaxation test machine, it is characterised in that:
Including ontology (1), the cylindrical structure that the ontology (1) is formed for L shape around the circle of body central axis one, and cylindrical body
Inside is equipped with hollow blind hole (11), extends to form annular base (12) around in the bottom edge horizontal direction of cylindrical body,
And the bottom of pedestal (12) is equipped with the counterbore (13) being recessed upwards, the side wall of counterbore (13) is equipped with internal screw thread (14), counterbore
(13) medial end is equipped with carrying end face (15)；The outboard end of the blind hole (11) sets Packed press plane (16), institute
State the hatching knurling (17) being uniformly provided on the upper end lateral wall of ontology (1) convenient for hand-held installation.
2. a kind of safety protection jacket of the steel strand relaxation test machine according to claim 1, it is characterised in that: the carrying
End face (15) is covered in the end of counterbore (13), and the inner sidewall of edge fitting counterbore (13) of loaded section (15).
3. a kind of safety protection jacket of the steel strand relaxation test machine according to claim 1, it is characterised in that: the ontology
(1) material uses structural alloy steel.
4. a kind of safety protection jacket of the steel strand relaxation test machine according to claim 1, it is characterised in that: the blind hole
(11) for set on the sealing space of ontology (1) bosom.
5. a kind of safety protection jacket of the steel strand relaxation test machine according to claim 1, it is characterised in that: the press
Plane (16), pedestal (12) and ontology (1) are integrally formed.
6. a kind of safety protection jacket of the steel strand relaxation test machine according to claim 1, it is characterised in that: the press
Plane (16) is the alloy steel products using selective quenching and hardening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811068405.3A CN109211667A (en) | 2018-09-13 | 2018-09-13 | A kind of safety protection jacket of the steel strand relaxation test machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811068405.3A CN109211667A (en) | 2018-09-13 | 2018-09-13 | A kind of safety protection jacket of the steel strand relaxation test machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109211667A true CN109211667A (en) | 2019-01-15 |
Family
ID=64983646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811068405.3A Pending CN109211667A (en) | 2018-09-13 | 2018-09-13 | A kind of safety protection jacket of the steel strand relaxation test machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109211667A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4343122A (en) * | 1980-01-26 | 1982-08-10 | Dyckerhoff & Widmann Aktiengesellschaft | System for anchoring a tendon in a structural concrete unit |
| CN2434665Y (en) * | 2000-05-18 | 2001-06-13 | 冶金工业部北京冶金设备研究院 | Steel material stress loose testing machine |
| JP2001355312A (en) * | 2000-06-14 | 2001-12-26 | Anderson Technology Kk | Socket protecting tool for prestressing steel strand coupler |
| CN202672749U (en) * | 2012-06-06 | 2013-01-16 | 宁波市政工程建设集团股份有限公司 | Prestress stretch-draw safety protection device connected through thread |
| CN106812252A (en) * | 2015-12-01 | 2017-06-09 | 衡阳市新德力预应力有限公司 | The anti-skidding prestressing force pull end anchorage of one kind sealing |
| CN206495421U (en) * | 2016-12-27 | 2017-09-15 | 北京巧力神金属结构有限公司 | It is anti-to burst out anchorage |
-
2018
- 2018-09-13 CN CN201811068405.3A patent/CN109211667A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4343122A (en) * | 1980-01-26 | 1982-08-10 | Dyckerhoff & Widmann Aktiengesellschaft | System for anchoring a tendon in a structural concrete unit |
| CN2434665Y (en) * | 2000-05-18 | 2001-06-13 | 冶金工业部北京冶金设备研究院 | Steel material stress loose testing machine |
| JP2001355312A (en) * | 2000-06-14 | 2001-12-26 | Anderson Technology Kk | Socket protecting tool for prestressing steel strand coupler |
| CN202672749U (en) * | 2012-06-06 | 2013-01-16 | 宁波市政工程建设集团股份有限公司 | Prestress stretch-draw safety protection device connected through thread |
| CN106812252A (en) * | 2015-12-01 | 2017-06-09 | 衡阳市新德力预应力有限公司 | The anti-skidding prestressing force pull end anchorage of one kind sealing |
| CN206495421U (en) * | 2016-12-27 | 2017-09-15 | 北京巧力神金属结构有限公司 | It is anti-to burst out anchorage |
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Application publication date: 20190115 |
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