CN2784904Y - Machine for testing mechanical property of steel pipe scaffold fastener - Google Patents
Machine for testing mechanical property of steel pipe scaffold fastener Download PDFInfo
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- CN2784904Y CN2784904Y CN 200420075379 CN200420075379U CN2784904Y CN 2784904 Y CN2784904 Y CN 2784904Y CN 200420075379 CN200420075379 CN 200420075379 CN 200420075379 U CN200420075379 U CN 200420075379U CN 2784904 Y CN2784904 Y CN 2784904Y
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- pressing
- testing machine
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Abstract
The utility model relates to a machine for testing mechanical property of a steel pipe scaffold fastener. The utility model comprises a force generator which is arranged on a machine frame (18) and is used for driving a pressing frame device and a soft rope (14) to move, and a workbench (9), wherein the pressing frame device comprises a pressing frame base board (20), a pressing frame body (6) installed on the pressing frame base board and a pressing head (5) installed on the pressing frame body. The upper part of the working table (9) is provided with a clamping and holding device and an upper frame (2). The clamping and holding device comprises a fast clamp (8) and a clamp board (29) which is connected with the fast clamp (8). The upper frame (2) is provided with a digital measuring implement I (3) and a digital measuring implement III (35). The lower part of the workbench is connected with the force testing device and both sides are respectively provided with a later wing. One end of one of the lateral wings is provided with a digital measuring implement II (30) and the other lateral wing and the workbench are provided with setting wheel groups (13). One end of the soft rope (14) is used for connecting a test assembly and the other end orderly rounds the setting wheel groups (13) and setting wheels (19) fixed on the pressing frame body and then is folded reversely and upwards and is fixed on a soft rope fixing board (16).
Description
(1) technical field
The utility model relates to the mechanical property test device, relates to a kind of steel tube scaffold clasp testing machine for mechanical properties specifically.
(2) background technology
Steel tube fastener formula framing scaffold is the requisite a kind of framing scaffold that is widely used on various buildingss, the infrastructure construction site.Therefore, the quality of steel tube fastener quality is directly connected to build labourer's personal safety problem.Country has formulated " steel tube scaffold clasp " national standard specially GB15831-1995 number for this reason for this reason.But up to now, also still do not have special-purpose steel tube scaffold clasp mechanical property test equipment and be used to steel tube scaffold clasp is carried out mechanical property test.And be mostly to adopt hydraulic universal material testing machine and dial gauge to carry out mechanical property test, all the mechanical property test project must adopt multimachine to finish in different places.
In addition because mostly existing testing equipment is to adopt artificial manual mode to carry out loading, be difficult to guarantee constant loading speed, and the fastener mechanical property test is very responsive to the requirement of loading speed, so prior art is difficult to this basic demand of loading speed of reaching constant.
Moreover, because the test unit automaticity of prior art is lower, and four kinds of pattern seven classes tests need making are by a conventional sample size, need do time test of 80 classes altogether, also need during this time to carry out artificial loading, manual read's power taking and shift value, manual record, this need expend a large amount of manpowers and time again.
(3) summary of the invention
The purpose of this utility model provides a kind of novel structure, reasonable, the steel tube scaffold clasp testing machine for mechanical properties that energy consumption is low, efficient is high just at existing weak point in the above-mentioned prior art.
The purpose of this utility model can realize by following measure:
Testing machine described in the utility model comprises frame, is arranged on the power generating means that is used for drive pressure rack device and gentle Suo Yundong on the frame, and the worktable that is positioned at the frame top; Described pressure rack device comprises the pressure frame base plate that combines with the power generating means, be installed in and press the pressing frame body on the frame base plate and be installed in pressure head on the pressing frame body; Described worktable top is provided with clamping device and upper frame, and this clamping device comprises quick-speed jigs, the clamping plate that link to each other with quick-speed jigs; Described upper frame is provided with upper lift ring, be provided with lower lift ring in the pressing frame body middle and upper part, upper frame is provided with digital measurer one and digital measurer three, the bottom of described worktable is connected with force checking device, its both sides respectively are provided with a flank, wherein an end of a flank is provided with digital measurer two, the wheels excessively that are provided with worktable on another flank; One end of described gentle rope is used to connect test assembly, and other end pile warp is successively crossed wheels, is fixed on the third wheel on the pressing frame body, upwards turns back then to be fixed on the gentle rope fixed head on the frame.
Force checking device described in the utility model comprises upper mounted plate, force transducer and bottom plate, and upper mounted plate top links to each other with worktable, and the bottom links to each other with force transducer; Bottom plate top links to each other with force transducer, and the bottom links to each other with total fixed head.
The utility model is equipped with a linear axis in the end of the horizontal-extending section of pressing the frame base plate by linear bearing, and described linear axis upper end combines with total fixed head, and its lower end is fixed on the end fixed head.
Also the Suo Yiduan that softens can be fixed on described in the utility model on the suspension member of pressing on the rack device, the other end passed the end that wheels are hooked in the transverse tube of right-angle coupler torsional properties test assembly.
Pressing connection one crossbeam on the rack device described in the utility model, crossbeam is provided with the crossbeam pressure head.
The generating means of power described in the utility model comprises torque motor, ball-screw, ball screw, the lower end of described ball-screw is passed end fixed head and is linked to each other with reduction gear, reduction gear links to each other with torque motor, the upper end of ball-screw combines with total fixed head, and total fixed head is fixed on the frame; Pressure frame base plate in the described pressure rack device connects by web member and described ball wire parent phase.
The generating means of power described in the utility model also can adopt hydraulicefficiency elevation structure to realize, also can adopt the mechanism of the described pressure rack device of driving of other any known upper and lower displacement to realize certainly.
But steel tube scaffold clasp testing machine for mechanical properties unit of the present utility model is finished whole steel tube scaffold clasp mechanical property test projects automatically; Especially constant loading speed is more suitable for the requirement of fastener test to the loading speed sensitivity.
Principle of work of the present utility model and advantage are as follows:
Open electric-controlled switch, enter the required test page by the touch LCD display screen, the clamping test assembly touches [beginning] button, and test begins automatically.After CPU detects the power value by force transducer, according to test method torque motor is carried out PWM control, constantly adjust torque motor output torque, the torque motor torque changes into the straight line pressure of pressure head or the pulling force of gentle rope by reduction gear and ball-screw transmission.Pressure or pulling force constant loading speed in accordance with regulations increases, and CPU gathers needed shift value in different working points from digital measurer, and test findings is printed by liquid crystal touch screen and mini-printer demonstration.Manual read's power taking and shift value, manual record have been save, the efficient height.Adopt torque motor PWM control technology and rational pid control algorithm, advanced in performance, contactless, low in energy consumption.Peak power only is 0.1kW.Loading speed is stable, and the fastener mechanical property test is responsive to loading speed, and constant loading speed is the basic demand of fastener mechanical property test.
(4) description of drawings
Fig. 1 is a front view of the present utility model.
Fig. 2 is a clamping device of the present utility model.
Fig. 3 is an observing and controlling schematic diagram of the present utility model.
Fig. 4 is the structure schematic diagram when adopting testing machine of the present utility model to do the test of right-angle coupler torsional properties.
Fig. 5 is the structure schematic diagram of second kind of embodiment when adopting testing machine of the present utility model to do the test of right-angle coupler torsional properties.
Fig. 6 is the structure schematic diagram of the third embodiment when adopting testing machine of the present utility model to do the test of right-angle coupler torsional properties.
Fig. 7 is the structure schematic diagram of the 4th kind of embodiment when adopting testing machine of the present utility model to do the test of right-angle coupler torsional properties.
Fig. 8 is the structure schematic diagram of the 5th kind of embodiment when adopting testing machine of the present utility model to do the test of right-angle coupler torsional properties.
Fig. 9 is the structure schematic diagram of the 6th kind of embodiment when adopting testing machine of the present utility model to do the test of right-angle coupler torsional properties.
Figure 10 is the structure schematic diagram of the 7th kind of embodiment when adopting testing machine of the present utility model to do the test of right-angle coupler torsional properties.
Figure 11, Figure 11 the-the 1st, a kind of conversion comparison diagram of the third embodiment when adopting testing machine of the present utility model to do the test of right-angle coupler torsional properties.
Figure 12 is serial connection force checking device two method synoptic diagram when adopting testing machine of the present utility model to do the test of right-angle coupler torsional properties.
Figure 13 is serial connection force checking device two method synoptic diagram when adopting testing machine of the present utility model to do the test of right-angle coupler torsional properties.
1 is upper lift ring among the figure, the 2nd, and upper frame, the 3rd, digital measurer one, 4th, lower lift ring, the 5th, pressure head, the 6th, pressing frame body, the 7th, test assembly, the 8th, quick-speed jigs, the 9th, worktable, the 10th, upper mounted plate, the 11st, rocking handle, the 12nd, force transducer, the 13rd, wheels, the 14th, gentle rope, the 15th, flank, the 16th, gentle rope fixed head, the 17th, bottom plate, the 18th, frame, the 19th, third wheel, the 20th, press the frame base plate, the 21st, ball-screw, the 22nd, reduction gear, the 23rd, end fixed head, the 24th, torque motor, the 25th, linear axis, the 26th, linear bearing, the 27th, ball screw, the 28th, total fixed head, the 29th, clamping plate, the 30th, digital measurer two, 31st, electrical control cubicles, the 32nd, mini-printer, the 33rd, electric-controlled switch, the 34th, LCDs, the 35th, digital measurer three, the 36th, assembly---the transverse tube of right-angle coupler torsional properties test, the 37th, cable, the 38th, suspension member, the 39th, power generating means two, 40th, web member, the 41st, crossbeam, the 42nd, crossbeam pressure head, the 43rd, application of force casting die, the 44th, force checking device two.
(5) embodiment
The utility model is further described below with reference to embodiment (accompanying drawing):
As shown in Figure 1, steel tube scaffold clasp testing machine for mechanical properties of the present utility model comprises power generating means, worktable 9, force checking device, electrical control cubicles 31.Described power generating means comprises torque motor 24, ball-screw 21, ball screw 27, the pressure rack device that links to each other with ball screw 27 and gentle rope 14; The lower end of described ball-screw 21 is passed end fixed head 23 and is linked to each other with reduction gear 22, and reduction gear 22 links to each other with torque motor 24, and the upper end of ball-screw 21 combines with total fixed head 28, and total fixed head 28 is fixed on the frame 18; Described pressure rack device comprises the pressure frame base plate 20 that combines with ball screw 27, be installed in the pressing frame body 6 of pressing on the frame base plate 20 and be installed in pressure head 5 on the pressing frame body 6 by coupling bolt; The linear axis that play the guiding role 25 that be arranged in parallel with ball-screw is installed in the end of the horizontal-extending section of pressing frame base plate 20 by linear bearing 26, and described linear axis 25 upper ends combine with total fixed head 28, and its lower end is fixed on the end fixed head 23; Pressing moving up and down of rack device is to drive reduction gear 22 by the torque motor in the power generating means 24, and then drive ball-screw 21 rotations, thereby passing to by ball screw 27, the rotation of ball-screw 21 press 20 drives of frame base plate to press the upper and lower motion of rack devices to realize; The gentle rope 14 that is used to connect test assembly successively pile warp be fixedly installed on another flank 15 and worktable 9 on cross wheels 13, be fixed on the third wheel 19 on the pressing frame body 6, upwards turning back then is fixed on the gentle rope fixed head 16 on the frame 18.
Described worktable 9 bottoms are connected with force checking device, and both sides are connected with flank 15, and the top weldering connects clamping device (as shown in Figure 2) and upper frame 2; Described flank 15 1 ends are fixed with digital measurer 2 30, and digital measurer 2 30 is used to measure the torsional distortion of right-angle coupler torsional properties test, and the other end was fixed with wheels 13; Described clamping device comprises quick-speed jigs 8, and the clamping plate 29 that link to each other with quick-speed jigs 8 are pulled the handle of quick-speed jigs 8, drives clamping plate 29 and rotates in order to the clamping test assembly; Hook when the lower lift ring 4 that fixing upper lift ring 1 and weldering are connected in described pressing frame body 6 middle and upper parts on the described upper frame 2 is used for the clasp tensile test, fixing digital measurer 1 and digital measurer 3 35 are used to measure right-angle coupler, the test of rotary buckle cling property and the displacement when the clasp tensile property tested on the upper frame 2.Also be provided with rocking handle 11 on the worktable 9, be used to adjust test assembly and be in suitable testing position.
Described force checking device comprises upper mounted plate 10, force transducer 12 and bottom plate 17, and the power value detects when being used to test.Upper mounted plate 10 tops link to each other with worktable 9, and the bottom links to each other with force transducer 12; Bottom plate 17 tops link to each other with force transducer 12, and the bottom links to each other with total fixed head 28.Described electrical control cubicles 31 is used for process of the test data acquisition and control, and its outer setting has LCDs 34, mini-printer 32, electric-controlled switch 33, and its inner observing and controlling schematic diagram is seen Fig. 3.After the CPU of described electrical control cubicles 31 inside detects the power value by force transducer, torque motor 24 is carried out PWM control, constantly adjust torque motor 24 output torques, and gather needed shift value from digital measurer, and test findings shown by liquid crystal touch screen 34 and mini-printer 32 print in different working points.
More specifically say, the flank 15 of described worktable 9 (seeing shown in Figure 4), one end is fixed with digital measurer 2 30, the torsional distortion (can be angle value or shift value) when being used for gathering the test of right-angle coupler torsional properties automatically, and pass through cable 37 and give CPU with data transfer; The other end of flank 15 was fixed with wheels 13, gentle rope 14 1 ends are fixed on frame 18 tops by gentle rope fixed head 16, gentle rope 14 other ends pass third wheel 19 and cross the end that wheels 13 are hooked in the transverse tube 36 of right-angle coupler torsional properties test assembly, and the power that moves downward generation of pressing rack device is passed to transverse tube 36; CPU makes and presses rack device to move down by torque motor 24 being carried out PWM control, drives gentle rope 14 to transverse tube 36 application of forces, loading step by step, and gather corresponding deformation quantity step by step, and after test was finished, torque motor 24 was to running in the other direction, and gentle rope 14 pulling force are removed.Gentle rope 14 is hooked in the point of application of transverse tube 36, reversing the arm of force, decide with structure by its size apart from the distance at worktable 9 centers for this point of application, and application of force value also will change thereupon, guarantee torsional moment=the reverse arm of force * application of force value, the desired torsional moment value of Pass Test; Be not difficult to find out: if according to testing requirements, reversing the arm of force can diminish, the point of application can be directly over third wheel 19, crossing wheels 13 so can save, because crossing wheels 13 fundamental purposes is directions of change power, make the application of force both satisfy testing requirements, the unlikely again force checking device that makes produces unbalance loading, influences the dynamometry accuracy.Equally, the deformation quantity check point also can be decided with structure, but if 2 30 outputs of digital measurer be shift value, then need it is converted into the shift value of the equivalence of Pass Test requirement, if 2 30 outputs of digital measurer is angle value, then do not need to convert.
Described in the utility model also can be as shown in Figure 5 structure, the other end that is the flank 15 on the worktable 9 was fixed with wheels 13, gentle rope 14 1 ends are fixed on the suspension member 38 of pressing on the rack device, the other end passed the end that wheels 13 are hooked in the transverse tube 36 of right-angle coupler torsional properties test assembly, and the power that moves downward generation of pressing rack device is passed to transverse tube 36.
Also can adopt structure as shown in Figure 6, promptly crossing wheels 13 is fixed on the frame 18, gentle rope 14 1 ends are fixed on the suspension member 38 of pressing on the rack device, the other end passed the end that wheels 13 are hooked in the transverse tube 36 of right-angle coupler torsional properties test assembly, and the power that moves downward generation of pressing rack device is passed to transverse tube 36.
Can also adopt structure as shown in Figure 7, the other end that is the flank 15 on the worktable 9 was fixed with wheels 13, gentle rope 14 1 ends are fixed on the suspension member 38 of pressing on the rack device, the other end passed the end that wheels 13 are hooked in the transverse tube 36 of right-angle coupler torsional properties test assembly, and the power of power generating means 2 39 is passed to transverse tube 36.
Shown in Figure 8 also is one of the structure that can adopt, promptly power generating means 2 39 by web member 40 directly to transverse tube 36 application of forces of right-angle coupler torsional properties test assembly.
Equally also can adopt structure as shown in Figure 9, promptly press connection one crossbeam 41 on the rack device, crossbeam 41 is provided with crossbeam pressure head 42, presses rack device to move downward by transverse tube 36 application of forces of crossbeam pressure head 42 to right-angle coupler torsional properties test assembly.
Also can adopt structure as shown in figure 10, promptly above transverse tube 36 point of applications of right-angle coupler torsional properties test assembly, placement power generating means 2 39, power generating means 2 39 is divided into application of force casting die 43, by to the control of power generating means 2 39 to transverse tube 36 application of forces.
The utility model still can adopt in the conversion embodiment third wheel number of crossing wheels 13, and the gentle rope 14 of the conversion mode of passing third wheel changes when pressing rack device to rise to be application of force process, then to remove process for gentle rope 14 pulling force when pressing rack device to descend.Figure 11-1 is a kind of transfer pair ratio of embodiment shown in Figure 6.
Certainly adopt the structure that is connected in series force checking device 2 44 in the gentle rope 14 in said structure or above crossbeam pressure head 42, application of force casting die 43,, so will improve the power accuracy in detection as Figure 12 and shown in Figure 13.
Claims (6)
1, a kind of steel tube scaffold clasp testing machine for mechanical properties, described testing machine comprises frame (18), is arranged on the power generating means that is used for drive pressure rack device and gentle rope (14) motion on the frame (18), and the worktable (9) that is positioned at frame (18) top; Described pressure rack device comprises the pressure frame base plate (20) that combines with the power generating means, be installed in and press the pressing frame body (6) on the frame base plate (20) and be installed in pressure head (5) on the pressing frame body (6), described worktable (9) top is provided with clamping device and upper frame (2), this clamping device comprises quick-speed jigs (8), the clamping plate (29) that link to each other with quick-speed jigs (8); Described upper frame (2) is provided with upper lift ring (1), be provided with lower lift ring (4) in pressing frame body (6) middle and upper part, upper frame (2) is provided with digital measurer one (3) and digital measurer three (35), it is characterized in that: the bottom of described worktable (9) is connected with force checking device, its both sides respectively are provided with a flank (15), wherein an end of a flank (15) is provided with digital measurer two (30), the wheels (13) excessively that another flank (15) is last and worktable (9) is provided with; One end of described gentle rope (14) is used to connect test assembly, and other end pile warp is successively crossed wheels (13), is fixed on the third wheel (19) on the pressing frame body (6), upwards turns back then to be fixed on the gentle rope fixed head (16) on the frame (18).
2, steel tube scaffold clasp testing machine for mechanical properties according to claim 1, it is characterized in that: described force checking device comprises upper mounted plate (10), force transducer (12) and bottom plate (17), upper mounted plate (10) top links to each other with worktable (9), and the bottom links to each other with force transducer (12); Bottom plate (17) top links to each other with force transducer (12), and the bottom links to each other with total fixed head (28).
3, steel tube scaffold clasp testing machine for mechanical properties according to claim 1, it is characterized in that: the end in the horizontal-extending section of pressing frame base plate (20) is equipped with a linear axis (25) by linear bearing (26), described linear axis (25) upper end combines with total fixed head (28), and its lower end is fixed on the end fixed head (23).
4, steel tube scaffold clasp testing machine for mechanical properties according to claim 1, it is characterized in that: gentle rope (14) one ends are fixed on the suspension member (38) of pressing on the rack device, and the other end passed the end that wheels (13) are hooked in the transverse tube (36) of right-angle coupler torsional properties test assembly.
5, steel tube scaffold clasp testing machine for mechanical properties according to claim 1 is characterized in that: press to connect a crossbeam (41) on the rack device, crossbeam (41) is provided with crossbeam pressure head (42).
6, steel tube scaffold clasp testing machine for mechanical properties according to claim 1, it is characterized in that: described power generating means comprises torque motor (24), ball-screw (21), ball screw (27), the lower end of described ball-screw (21) is passed end fixed head (23) and is linked to each other with reduction gear (22), reduction gear (22) links to each other with torque motor (24), the upper end of ball-screw (21) combines with total fixed head (28), and total fixed head (28) is fixed on the frame (18); Pressure frame base plate (20) in the described pressure rack device links to each other with described ball screw (27) by web member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420075379 CN2784904Y (en) | 2004-12-14 | 2004-12-14 | Machine for testing mechanical property of steel pipe scaffold fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420075379 CN2784904Y (en) | 2004-12-14 | 2004-12-14 | Machine for testing mechanical property of steel pipe scaffold fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2784904Y true CN2784904Y (en) | 2006-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420075379 Expired - Fee Related CN2784904Y (en) | 2004-12-14 | 2004-12-14 | Machine for testing mechanical property of steel pipe scaffold fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2784904Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012345A (en) * | 2010-11-28 | 2011-04-13 | 贵州航天新力铸锻有限责任公司 | Universal clamping mechanism for bolt/nut mechanical test |
| CN102998112A (en) * | 2012-12-12 | 2013-03-27 | 中铁隆昌铁路器材有限公司 | Fastener fatigue test device and fastener fatigue test method |
| CN103822795A (en) * | 2014-03-06 | 2014-05-28 | 宁波工程学院 | Gantry scaffolding component mechanical property detecting device and method |
| CN105606348A (en) * | 2015-11-05 | 2016-05-25 | 浙江华电器材检测研究所 | Scaffold stability testing device and method |
-
2004
- 2004-12-14 CN CN 200420075379 patent/CN2784904Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012345A (en) * | 2010-11-28 | 2011-04-13 | 贵州航天新力铸锻有限责任公司 | Universal clamping mechanism for bolt/nut mechanical test |
| CN102998112A (en) * | 2012-12-12 | 2013-03-27 | 中铁隆昌铁路器材有限公司 | Fastener fatigue test device and fastener fatigue test method |
| CN102998112B (en) * | 2012-12-12 | 2015-01-21 | 中铁隆昌铁路器材有限公司 | Fastener fatigue test method |
| CN103822795A (en) * | 2014-03-06 | 2014-05-28 | 宁波工程学院 | Gantry scaffolding component mechanical property detecting device and method |
| CN103822795B (en) * | 2014-03-06 | 2016-02-17 | 宁波工程学院 | Door-type scaffold element mechanics device for detecting performance and detection method |
| CN105606348A (en) * | 2015-11-05 | 2016-05-25 | 浙江华电器材检测研究所 | Scaffold stability testing device and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |