CN104458423A - 50-ton closed loop measurement and control wood tensile test device - Google Patents
50-ton closed loop measurement and control wood tensile test device Download PDFInfo
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- CN104458423A CN104458423A CN201410815660.5A CN201410815660A CN104458423A CN 104458423 A CN104458423 A CN 104458423A CN 201410815660 A CN201410815660 A CN 201410815660A CN 104458423 A CN104458423 A CN 104458423A
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- clamp system
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- tensile test
- closed loop
- rack body
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Abstract
The invention discloses a 50-ton closed loop measurement and control wood tensile test device, belonging to the technical field of wood detection, and aiming at solving the problem that synchronous clamping force and tensile force regulation cannot be realized by the existing wood tensile test device, and the longitudinal loading tensile force and the loading force on the end part of the transverse test sample are not synchronous. A left clamping mechanism and a right clamping mechanism are arranged on a rack body in a sliding manner, a stretching oil cylinder is fixedly arranged at each of left and right sides of the rack body; output ends of the stretching oil cylinders are connected to the left clamping mechanism and the right clamping mechanism through thrust joint bearings; the stretching direction of the stretching oil cylinder at the left side is the same as the sliding direction of the left clamping mechanism, the stretching direction of the stretching oil cylinder at the right side is the same as the sliding direction of the right clamping mechanism; a tension sensor is further arranged on the output shafts of the stretching oil cylinders; displacement sensors are arranged on the left clamping mechanism and the right clamping mechanism. The 50-ton closed loop measurement and control wood tensile test device is used for a wood stretching test.
Description
Technical field
The present invention relates to a kind of timber tensile test apparatus, particularly relate to a kind of 50 tons of closed loop measurement and control timber tensile test apparatus, belong to log detection technical field.
Background technology
At present, the timber tensile test apparatus of 50 tons that generally adopt both at home and abroad, can only test pulling force by controlled loading, but can not while increase pulling force, control the clamping force of fixture, namely cannot realize synchronous clamping power and pulling force adjustment, longitudinal loading tensile is asynchronous with horizontal sample end load power.Its in test, if the constant clamping force of fixture is less than normal, because timber deflection variation range is large, can cause in timber tension test process, wood sample comes off from fixture; If the constant clamping force of fixture is bigger than normal, can cause clamp edges directly by wood sample when not arriving theoretic tension stress, just to break in advance, thus can not effectively and reliably carry out timber tension test.
Summary of the invention
The present invention cannot realize synchronous clamping power and pulling force adjustment, longitudinal loading tensile and the nonsynchronous problem of horizontal sample end load power to solve existing timber tensile test apparatus, and then provides a kind of 50 tons of closed loop measurement and control timber tensile test apparatus.
The present invention in order to solve the problems of the technologies described above taked technical scheme is:
50 tons of closed loop measurement and control timber tensile test apparatus of the present invention, comprise Rack Body, left clamp system, right clamp system, stretching oil cylinder, displacement transducer and pulling force sensor; Described left clamp system and right clutch mechanism slip are arranged on Rack Body, Rack Body be each side installed with a stretching oil cylinder, the output terminal of stretching oil cylinder is connected with left clamp system and right clamp system by thrust articulated bearing, the draw direction of the stretching oil cylinder in left side is identical with the glide direction of left clamp system, the draw direction of the stretching oil cylinder on right side is identical with the glide direction of right clamp system, the output shaft of described stretching oil cylinder is also provided with pulling force sensor, left clamp system and right clamp system are provided with displacement transducer.
Preferred: described left clamp system and right clamp system include front end-plate, end plate, strap, dynamic clamping plate, multiple pressure transducer, multiple angle sheave and multiple clamping cylinder, be arranged in parallel before and after described front end-plate and end plate, strap is arranged between front end-plate and end plate, dynamic clamping plate are arranged on the below of strap, multiple clamping cylinder is arranged on Rack Body, the output shaft of clamping cylinder is connected with dynamic clamping plate, the output shaft of clamping cylinder is provided with pressure transducer, front end-plate and end plate are symmetrically installed with multiple angle sheave, described angle sheave slides on Rack Body.
Preferred: described left clamp system and right clamp system all also comprise guide frame and guide roller, described guide frame is arranged on the wood sample charging side of clamp system, the bottom of guide frame is provided with guide roller, and the top of guide roller is concordant with the upper surface of dynamic clamping plate.Setting like this, is convenient to wood sample and is installed.
Preferred: described left clamp system and right clamp system all also comprise Turbogrid plates, described front end-plate, region between end plate and strap are provided with Turbogrid plates.Setting like this, strengthens the structural strength of clamp system.
Preferred: described left clamp system and right clamp system all also comprise prelocalization frame and rear locating rack, described front end-plate are provided with prelocalization frame, end plate are provided with rear locating rack, described prelocalization frame and rear locating rack are symmetrical arranged.Setting like this, is convenient to the location and installation of clamp system.
Preferred: described Rack Body comprises two portal frames and four crossbeams, be set up in parallel about described two portal frames, four crossbeams are equipped with in portal frame, four crossbeams form rectangular frame, crossbeam is fixed on portal frame, left clamp system and right clamp system are arranged in rectangular frame, and slide on rectangular frame.
Preferred: left end and the right-hand member of described rectangular frame are provided with shrouding.Setting like this, prevents clamp system from skidding off rectangular frame, ensure that the security of test.
Preferred: described Rack Body also comprises broken line type reinforcement, described broken line type reinforcement is arranged between two portal frames.Setting like this, structural stability is strong.
Preferred: described Rack Body also comprises backplate, described backplate is arranged on the trailing flank of two portal frames.Setting like this, structure is more reasonable.
The present invention compared with prior art has following effect: the present invention can while controlled loading tests pulling force, control the clamping force of fixture, realize synchronous clamping and stretching, efficiently solve the nonsynchronous technical barrier due to longitudinal loading tensile and horizontal sample end load power in timber tension test process, test is completed smoothly.The tradition that the present invention changes 50 tons of timber cupping machines loads and clamping mode, solves and is different from wood sample, cause when constant voltage clamps under different loading tensile conditions, and test is difficult to the problem of effectively carrying out.Operation is simple in the present invention, improves experiment work efficiency.
Accompanying drawing explanation
Fig. 1 is the structural drawing of 50 tons of closed loop measurement and control timber tensile test apparatus of the present invention;
Fig. 2 is the front view of 50 tons of closed loop measurement and control timber tensile test apparatus of the present invention;
Fig. 3 is the main cut-open view of 50 tons of closed loop measurement and control timber tensile test apparatus of the present invention;
Fig. 4 is the stereographic map of clamp system.
In figure: 1-Rack Body; The left clamp system of 2-; The right clamp system of 3-; 4-stretching oil cylinder; 5-displacement transducer; 6-pulling force sensor; 7-portal frame; 8-crossbeam; 9-shrouding; 10-broken line type reinforcement; 11-front end-plate; 12-end plate; 13-strap; 14-moves clamping plate; 15-angle sheave; 16-clamping cylinder; 17-guide frame; 18-guide roller; 19-Turbogrid plates; 20-prelocalization frame; Locating rack after 21-; 22-backplate.
Embodiment
Embodiment: in conjunction with the accompanying drawings, 50 tons of closed loop measurement and control timber tensile test apparatus of present embodiment comprise Rack Body 1, left clamp system 2, right clamp system 3, stretching oil cylinder 4, displacement transducer 5 and pulling force sensor 6, described left clamp system 2 and right clamp system 3 are slidably mounted on Rack Body 1, Rack Body 1 be each side installed with a stretching oil cylinder 4, the output terminal of stretching oil cylinder 4 is connected with left clamp system 2 and right clamp system 3 by thrust articulated bearing, the draw direction of the stretching oil cylinder in left side is identical with the glide direction of left clamp system 2, the draw direction of the stretching oil cylinder on right side is identical with the glide direction of right clamp system 3, the output shaft of described stretching oil cylinder is also provided with pulling force sensor 6, left clamp system 2 and right clamp system 3 are provided with displacement transducer 5.Described left clamp system 2 and right clamp system 3 structure identical (see Fig. 4), include front end-plate 11, end plate 12, strap 13, dynamic clamping plate 14, multiple pressure transducer, multiple angle sheave 15 and multiple clamping cylinder 16, be arranged in parallel before and after described front end-plate 11 and end plate 12, strap 13 is arranged between front end-plate 11 and end plate 12, dynamic clamping plate 14 are arranged on the below of strap 13, multiple clamping cylinder 16 is arranged on Rack Body 1, the output shaft of clamping cylinder 16 is connected with dynamic clamping plate 14, the output shaft of clamping cylinder 16 is provided with pressure transducer, front end-plate 11 and end plate 12 are symmetrically installed with multiple angle sheave 15, described angle sheave 15 slides on Rack Body 1.Described left clamp system 2 and right clamp system 3 all also comprise guide frame 17 and guide roller 18, described guide frame 17 is arranged on the wood sample charging side of clamp system, the bottom of guide frame 17 is provided with guide roller 18, and the top of guide roller 18 is concordant with the upper surface of dynamic clamping plate 14.Described left clamp system 2 and right clamp system 3 all also comprise Turbogrid plates 19, and described front end-plate 11, region between end plate 12 and strap 13 are provided with Turbogrid plates 19.Described left clamp system 2 and right clamp system 3 all also comprise prelocalization frame 20 and rear locating rack 21, and described front end-plate 11 is provided with prelocalization frame 20, end plate 12 are provided with rear locating rack 21, and described prelocalization frame 20 is symmetrical arranged with rear locating rack 21.Described Rack Body 1 comprises two portal frames 7 and four crossbeams 8, described two portal frames about 7 are set up in parallel, four crossbeams 8 are equipped with in portal frame 7, four crossbeams 8 form rectangular frame, crossbeam 8 is fixed on portal frame 7, left clamp system 2 and right clamp system 3 are arranged in rectangular frame, and slide on rectangular frame.The left end of described rectangular frame and right-hand member are provided with shrouding 9.Described Rack Body 1 also comprises broken line type reinforcement 10, and described broken line type reinforcement 10 is arranged between two portal frames 7.Described Rack Body 1 also comprises backplate 22, and described backplate 22 is arranged on the trailing flank of two portal frames 7.
Wood sample is put on timber tensile test apparatus of the present invention and clamps in advance, then wood sample tension test is carried out, stretching oil cylinder 4 pressurizes setting in motion to wood sample continuous pressure, pulling force and the displacement of wood sample is detected in real time by sensor, and increase the pressure of clamp device in real time according to pulling force and displacement, until timber is pulled off off-test.
The exemplary illustration of present embodiment just to this patent, does not limit its protection domain, and those skilled in the art can also change, as long as no the Spirit Essence exceeding this patent, in the protection domain of this patent its local.
Claims (9)
1.50 tons of closed loop measurement and control timber tensile test apparatus, is characterized in that: comprise Rack Body (1), left clamp system (2), right clamp system (3), stretching oil cylinder (4), displacement transducer (5) and pulling force sensor (6), described left clamp system (2) and right clamp system (3) are slidably mounted on Rack Body (1), Rack Body (1) be each side installed with a stretching oil cylinder (4), the output terminal of stretching oil cylinder (4) is connected with left clamp system (2) and right clamp system (3) by thrust articulated bearing, the draw direction of the stretching oil cylinder in left side is identical with the glide direction of left clamp system (2), the draw direction of the stretching oil cylinder on right side is identical with the glide direction of right clamp system (3), the output shaft of described stretching oil cylinder is also provided with pulling force sensor (6), left clamp system (2) and right clamp system (3) are provided with displacement transducer (5).
2. 50 tons of closed loop measurement and control timber tensile test apparatus according to claim 1, it is characterized in that: described left clamp system (2) and right clamp system (3) include front end-plate (11), end plate (12), strap (13), dynamic clamping plate (14), multiple pressure transducer, multiple angle sheave (15) and multiple clamping cylinder (16), be arranged in parallel before and after described front end-plate (11) and end plate (12), strap (13) is arranged between front end-plate (11) and end plate (12), dynamic clamping plate (14) are arranged on the below of strap (13), multiple clamping cylinder (16) is arranged on Rack Body (1), the output shaft of clamping cylinder (16) is connected with dynamic clamping plate (14), the output shaft of clamping cylinder (16) is provided with pressure transducer, front end-plate (11) and end plate (12) are symmetrically installed with multiple angle sheave (15), described angle sheave (15) is in the upper slip of Rack Body (1).
3. 50 tons of closed loop measurement and control timber tensile test apparatus according to claim 2, it is characterized in that: described left clamp system (2) and right clamp system (3) all also comprise guide frame (17) and guide roller (18), described guide frame (17) is arranged on the wood sample charging side of clamp system, the bottom of guide frame (17) is provided with guide roller (18), and the top of guide roller (18) is concordant with the upper surface of dynamic clamping plate (14).
4. 50 tons of closed loop measurement and control timber tensile test apparatus according to claim 3, it is characterized in that: described left clamp system (2) and right clamp system (3) all also comprise Turbogrid plates (19), described front end-plate (11), region between end plate (12) and strap (13) are provided with Turbogrid plates (19).
5. 50 tons of closed loop measurement and control timber tensile test apparatus according to claim 4, it is characterized in that: described left clamp system (2) and right clamp system (3) all also comprise prelocalization frame (20) and rear locating rack (21), described front end-plate (11) is provided with prelocalization frame (20), end plate (12) is provided with rear locating rack (21), described prelocalization frame (20) and rear locating rack (21) are symmetrical arranged.
6. 50 tons of closed loop measurement and control timber tensile test apparatus according to claim 5, it is characterized in that: described Rack Body (1) comprises two portal frames (7) and four crossbeams (8), described two portal frames (7) left and right is set up in parallel, four crossbeams (8) are equipped with in portal frame (7), four crossbeams (8) form rectangular frame, crossbeam (8) is fixed on portal frame (7), left clamp system (2) and right clamp system (3) are arranged in rectangular frame, and slide on rectangular frame.
7. 50 tons of closed loop measurement and control timber tensile test apparatus according to claim 6, is characterized in that: the left end of described rectangular frame and right-hand member are provided with shrouding (9).
8. 50 tons of closed loop measurement and control timber tensile test apparatus according to claim 7, it is characterized in that: described Rack Body (1) also comprises broken line type reinforcement (10), described broken line type reinforcement (10) is arranged between two portal frames (7).
9. 50 tons of closed loop measurement and control timber tensile test apparatus according to claim 8, it is characterized in that: described Rack Body (1) also comprises backplate (22), described backplate (22) is arranged on the trailing flank of two portal frames (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410815660.5A CN104458423B (en) | 2014-12-24 | 2014-12-24 | 50 tons of closed loop measurement and control timber tensile test apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410815660.5A CN104458423B (en) | 2014-12-24 | 2014-12-24 | 50 tons of closed loop measurement and control timber tensile test apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104458423A true CN104458423A (en) | 2015-03-25 |
| CN104458423B CN104458423B (en) | 2017-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410815660.5A Expired - Fee Related CN104458423B (en) | 2014-12-24 | 2014-12-24 | 50 tons of closed loop measurement and control timber tensile test apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN104458423B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112816327A (en) * | 2021-02-03 | 2021-05-18 | 济南恒瑞金试验机有限公司 | Tensile and compressive testing machine and testing method for structural wood laminated wood |
Citations (7)
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|---|---|---|---|---|
| US20060259252A1 (en) * | 2003-10-27 | 2006-11-16 | Hans-Peter Leitinger | Method for quality assurance of long timber |
| CN101000292A (en) * | 2006-12-15 | 2007-07-18 | 清华大学 | Large 3D multifunction soil tester |
| CN101655431A (en) * | 2009-09-13 | 2010-02-24 | 威海市试验机制造有限公司 | Tensile test machine horizontal sliding hydraulic clamp |
| CN101692027A (en) * | 2009-08-27 | 2010-04-07 | 哈尔滨工业大学 | Universal material testing machine for variable rotating speed pump control hydraulic servo loading system |
| CN202383014U (en) * | 2011-09-29 | 2012-08-15 | 中国矿业大学 | Flexible clamping system |
| CN102778393A (en) * | 2012-06-06 | 2012-11-14 | 美特斯工业系统（中国）有限公司 | Full-automatic tension testing machine |
| JP2013064658A (en) * | 2011-09-19 | 2013-04-11 | Yuasa System Kiki Kk | Twist testing apparatus of planar body |
-
2014
- 2014-12-24 CN CN201410815660.5A patent/CN104458423B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060259252A1 (en) * | 2003-10-27 | 2006-11-16 | Hans-Peter Leitinger | Method for quality assurance of long timber |
| CN101000292A (en) * | 2006-12-15 | 2007-07-18 | 清华大学 | Large 3D multifunction soil tester |
| CN101692027A (en) * | 2009-08-27 | 2010-04-07 | 哈尔滨工业大学 | Universal material testing machine for variable rotating speed pump control hydraulic servo loading system |
| CN101655431A (en) * | 2009-09-13 | 2010-02-24 | 威海市试验机制造有限公司 | Tensile test machine horizontal sliding hydraulic clamp |
| JP2013064658A (en) * | 2011-09-19 | 2013-04-11 | Yuasa System Kiki Kk | Twist testing apparatus of planar body |
| CN202383014U (en) * | 2011-09-29 | 2012-08-15 | 中国矿业大学 | Flexible clamping system |
| CN102778393A (en) * | 2012-06-06 | 2012-11-14 | 美特斯工业系统（中国）有限公司 | Full-automatic tension testing machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112816327A (en) * | 2021-02-03 | 2021-05-18 | 济南恒瑞金试验机有限公司 | Tensile and compressive testing machine and testing method for structural wood laminated wood |
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| Publication number | Publication date |
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| CN104458423B (en) | 2017-03-08 |
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| CB03 | Change of inventor or designer information |
Inventor after: Wang Ziqi Inventor after: Yu Dawei Inventor after: He Xiaodong Inventor after: Zhao Xiu Inventor after: Wang Hongdai Inventor after: Huang Zaihua Inventor after: Shi Lancui Inventor after: Guan Shuai Inventor after: Meng Xiangpeng Inventor before: Wang Ziqi Inventor before: Yu Dawei Inventor before: He Xiaodong Inventor before: Zhao Xiu Inventor before: Su Yun |
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Granted publication date: 20170308 Termination date: 20201224 |
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| CF01 | Termination of patent right due to non-payment of annual fee |