CN205593721U - Test device - Google Patents
Test device Download PDFInfo
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- CN205593721U CN205593721U CN201521108551.6U CN201521108551U CN205593721U CN 205593721 U CN205593721 U CN 205593721U CN 201521108551 U CN201521108551 U CN 201521108551U CN 205593721 U CN205593721 U CN 205593721U
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- leading screw
- test equipment
- screw
- structural member
- sleeve pipe
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Abstract
The utility model relates to a test technical field discloses one kind and has been used for the test device that goes on testing to the ability of structure resistance to deformation. Test device includes screw jack structure, force transducer and displacement sensor, screw jack constructs the lead screw including the rectilinear movement that can reciprocate, the removal of lead screw drives the one end of lead screw can be right the effort is applyed to the structure, force transducer is used for measuring the size of effort is applyed to the lead screw to the structure, displacement sensor is used for measuring the structure is in deformation volume under the effort that the lead screw was applyed is surveyed the ability of structure resistance to deformation according to the aassessment with this two item number. The screw jack structure has advantages such as the effort is steady, small, the function is many, light in weight, noiselessness, compact structure, simple to operate, use flexibility, power supply guangZhou, high transmission efficiency, long service life to the structure.
Description
Technical field
This utility model relates to technical field of measurement and test, particularly relates to a kind of test equipment for testing the ability of structural member resistance to deformation.
Background technology
For elastic structure, before it is applied on product, need the ability of its resistance to deformation is tested, to ensure the performance of product.In prior art, directly apply active force to structural member by the driving such as hydraulic pressure, air pressure source, and obtain the size of described active force, and structural member occurs elastically-deformable size under described active force, tests the ability of structural member resistance to deformation.But, the active force of above-mentioned test equipment is relatively big and unstable, is well over the maximum flexibility deformation quantity of structural member, and cannot restore to the original state.
Utility model content
This utility model provides a kind of for testing the ability of structural member resistance to deformation and active force tests equipment smoothly.
For solving above-mentioned technical problem, this utility model embodiment provides a kind of test equipment, for the ability of structural member resistance to deformation is tested, described test equipment includes drive mechanism, described drive mechanism is for applying active force to described structural member, described drive mechanism is spiral lifting mechanism, and including the leading screw reciprocally moved linearly, one end of the described leading screw of mobile drive of described leading screw can apply active force to described structural member；
Described test equipment also includes force transducer and displacement transducer, and described force transducer applies the size of active force for measuring described leading screw to structural member, and institute's displacement sensors is for measuring described structural member deformation quantity under the active force that described leading screw applies.
Testing equipment as above, it is preferred that one end of described leading screw is provided with force application board, the described force application board of mobile drive of described leading screw applies active force to described structural member, and described force transducer is arranged between described leading screw and force application board.
Testing equipment as above, it is preferred that one end of described leading screw has external screw thread, described force transducer is connected with described threads of lead screw.
Test equipment as above, it is preferred that described test equipment also includes that sleeve pipe, described casing pipe sleeve are located at outside described leading screw, and institute's displacement sensors is arranged on described sleeve pipe.
Test equipment as above, it is preferred that described test equipment also includes that clamping device, institute's displacement sensors are fixed on the end of described sleeve pipe by described clamping device.
Testing equipment as above, it is preferred that described clamping device is fixed on the end of described sleeve pipe, described clamping device includes:
Cylindrical body, fixes with described sleeve pipe and is connected, and be coaxially disposed；
Being fixed on the fixed plate on described cylindrical body inwall, it is semi-circular shape that described fixed plate is perpendicular to the cross section of described casing axis；
The arcuation pressure strip being oppositely arranged with described fixed plate, described pressure strip has the push rod through described cylindrical body away from the one side at its center, described push rod has, with described cylindrical body, the screw thread coordinated, and can be pressed on the end face of described fixed plate by institute's displacement sensors by screwing described push rod.
Test equipment as above, it is preferred that the end of described push rod has handle, screw described push rod by described handle.
Testing equipment as above, it is preferred that described spiral lifting mechanism also includes housing, described leading screw passes described housing；
Described spiral lifting mechanism also includes worm screw and the worm gear being arranged in described housing, and described worm screw passes described housing, and vertical with described leading screw, and described worm screw is installed with described worm gear, and described leading screw is installed with described worm gear；
Described force transducer and displacement transducer are positioned at the both sides of described housing.
Test equipment as above, it is preferred that described sleeve pipe is structure as a whole with described housing.
Test equipment as above, it is preferred that described spiral lifting mechanism also includes that power source, the outfan of described power source are connected with one end of described worm screw, drives described worm screw to rotate.
Having the beneficial effect that of technique scheme of the present utility model:
In technique scheme, test equipment uses spiral lifting mechanism that structural member is applied active force, owing to lead screw transmission has the stable advantage of active force, structural member will not cause expendable damage.And spiral lifting mechanism has that volume is little, function is many, lightweight, noiselessness, compact conformation, easy for installation, use flexibly, the advantage such as power source is wide, transmission efficiency is high, length in service life.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 represents the structural representation testing equipment in this utility model embodiment；
Fig. 2 represents the axial, cross-sectional view of clamping device in this utility model embodiment；
Fig. 3 represents the top view of clamping device in this utility model embodiment.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is described in further detail.Following example are used for illustrating this utility model, but are not limited to scope of the present utility model.
As it is shown in figure 1, this utility model embodiment provides a kind of test equipment, for the ability of structural member resistance to deformation is tested.Described test equipment includes drive mechanism 1, force transducer 2 and displacement transducer 3, drive mechanism 1 is for applying active force to described structural member, force transducer 2 applies the size of active force for measuring drive mechanism 1 to structural member, displacement transducer 3, for measuring described structural member deformation quantity under the active force that drive mechanism 1 applies, carrys out the ability of evaluation structure part resistance to deformation according to the size of described active force and deformation quantity.
Drive mechanism 1 is spiral lifting mechanism, and including the leading screw 10 reciprocally moved linearly, one end of the mobile drive leading screw 10 of leading screw 10 can apply active force to described structural member.
Above-mentioned test equipment uses spiral lifting mechanism that structural member is applied active force, owing to lead screw transmission has the stable advantage of active force, structural member will not cause expendable damage.And spiral lifting mechanism has that volume is little, function is many, lightweight, noiselessness, compact conformation, easy for installation, use flexibly, the advantage such as power source is wide, transmission efficiency is high, length in service life.
Wherein, force transducer 2 can select to carry the sensor of amplifier and display, the SH series produced such as Wenzhou Shan Du company limited, it is possible to directly read data；A sensor for band bare wire can also be selected, the S40A type produced such as HBM, then its bare wire is connected on data acquisition unit, it is achieved the reading of data.Displacement transducer 3 can select the pointer type displacement transducer of resiliency, such as LVDT type.
Spiral lifting mechanism 1 also includes housing 4, worm screw 20 and the worm gear (not shown) being arranged in housing 4, and leading screw 10 is through housing 4.Worm screw 20 is through housing 4 and vertical with leading screw 10, and worm screw 20 is installed with described worm gear, installing with described worm gear of leading screw 10.Specifically can manually or use power source to drive worm screw 20 to rotate, worm screw 20 drives described worm gear reducer to rotate, and the embedded SMA actuators of described worm gear is female thread, and driving leading screw 10 moves up and down, and presses, push-and-pull or jacking under reaching.Described worm gear and the decelerating effect of leading screw 10, it is possible to amplify the thrust of spiral lifting mechanism 1.When using power source to drive worm screw 20 to rotate, the outfan of described power source is connected with one end of worm screw 20, drives worm screw 20 to rotate, and wherein, described power source can select motor.
In the present embodiment, one end of leading screw 10 is provided with force application board 11, and the mobile drive force application board 11 of leading screw 10 applies active force to described structural member, to increase the contact area with described structural member, active force is uniformly applied on described structural member, improves test reliability of structure.
Further, force transducer 2 is arranged between leading screw 10 and force application board 11, it is possible to the fine leading screw 10 that must obtain applies the size of active force to described structural member.Concrete, external screw thread can be formed in one end of leading screw 11, force transducer 2 has the female thread coordinated with leading screw 11, it is achieved threaded, easy for installation, uses flexibly.
And for displacement transducer 3, sleeve 12 can be set, and sleeve pipe 12 is set in outside leading screw 10, displacement transducer 3 is arranged on sleeve pipe 12, when leading screw 10 facing sleeve 12 is moved, displacement transducer 3 can measure the displacement of leading screw 10, and the displacement of leading screw 10 is the deformation quantity of described structural member, it is achieved the measurement to described structural member deformation quantity under the active force that leading screw 10 applies.Preferably, sleeve pipe 12 is structure as a whole with the housing 4 of spiral lifting mechanism 1, simplifies the structure of equipment so that structure is compacter.
For the ease of installing, displacement transducer 3 can be arranged on the end of sleeve pipe 12.Concrete, described test equipment also includes that clamping device, displacement transducer 3 are fixed on the end of sleeve pipe 12 by clamping device 5.
In the present embodiment, clamping device 5 is fixed on the end of sleeve pipe 12.Shown in Fig. 2 and Fig. 3, clamping device 5 includes cylindrical body 6, and cylindrical body 6 is fixing with sleeve pipe 12 to be connected, and is coaxially disposed.Clamping device 5 also includes the arcuation pressure strip 14 being fixed on the fixed plate 13 on cylindrical body 6 inwall and being oppositely arranged with fixed plate 13.It is semi-circular shape that fixed plate 13 is perpendicular to the cross section of sleeve pipe 12 axis.Pressure strip 14 has the push rod 15 through cylindrical body 6 away from the one side at its center, and push rod 15 has, with cylindrical body 6, the screw thread coordinated, specifically, sleeve pipe 12 has the female thread that the external screw thread with cylindrical body 6 coordinates.Displacement transducer 3 can be pressed on the end face of fixed plate 13 by screwing push rod 15, thus displacement transducer 3 is arranged on the end of sleeve pipe 12.Further, screw push rod 15 for convenience, it is also possible to handle 16 is set in the end of push rod 15, screw push rod 15 by handle 16.
Wherein, fixed plate 13 can be fixed by the bolt 17 through cylindrical body 6.
It should be noted that displacement transducer 3 is not limited to by clamping device and has the clamping device of said structure and be arranged on sleeve pipe 12, it is also possible to be arranged on sleeve pipe 12 by the clamping device of other modes such as screw thread, welding or other versions.
Shown in Fig. 1-Fig. 3, in this utility model embodiment, the test equipment for testing the ability of structural member resistance to deformation specifically includes:
Spiral lifting mechanism 1, force transducer 2, displacement transducer 3, force application board 11, sleeve pipe 12 and clamping device 5；
Spiral lifting mechanism 1 includes:
Housing 4, sleeve pipe 12 is structure as a whole with housing 4；
Leading screw 10, through housing 4；
Worm screw 20, through housing 4, vertical with leading screw 10；
Worm gear, is arranged in housing 4, and the external screw thread of worm screw 20 coordinates the screw-internal thread fit of installation, the external screw thread of leading screw 10 and worm gear to install with the external screw thread of worm gear；
One end of leading screw 10 has external screw thread, and force transducer 2 has the female thread that the external screw thread with leading screw 10 coordinates, and the threaded one end of leading screw 10 and force transducer 2 connects.
Force application board 11 is arranged on the other end of force transducer 2, for structural member is applied active force；
Clamping device 5 is fixed on the end of sleeve pipe 12, including:
Cylindrical body 6, fixes with sleeve pipe 12 and is connected, and be coaxially disposed；
Being fixed on the fixed plate 13 on cylindrical body 6 inwall, it is semi-circular shape that fixed plate 13 is perpendicular to the cross section of sleeve pipe 12 axis；
The arcuation pressure strip 14 being oppositely arranged with fixed plate 13, pressure strip 14 has the push rod 15 through cylindrical body 6 away from the one side at its center, and the end of push rod 15 is provided with handle 16.
Cylindrical body 6 has the female thread that the external screw thread with push rod 15 coordinates, and can be pressed on the end face of fixed plate 13 by displacement transducer 3 by screwing push rod 15, thus displacement transducer 3 is arranged on the end of sleeve pipe 12.
The detailed process that structural member is tested by above-mentioned test equipment is:
Another side relative with force transducer 2 for force application board 11 is fixed with tested structural member and is rigidly connected；
Drive worm screw 20 to rotate, drive leading screw 10 to move, thus drive force application board 11 that tested structural member is applied pressure or pulling force；
Active force that tested structural member is subject to and the deformation quantity under described active force thereof is read respectively, by the ability of this two item data tested structural member resistance to deformation of assessment by force transducer 2 and displacement transducer 3.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; on the premise of without departing from this utility model know-why; can also make some improvement and replacement, these improve and replace and also should be regarded as protection domain of the present utility model.
Claims (10)
1. a test equipment, for testing the ability of structural member resistance to deformation, described test equipment includes drive mechanism, and described drive mechanism is for applying active force to described structural member, it is characterised in that
Described drive mechanism is spiral lifting mechanism, and including the leading screw reciprocally moved linearly, one end of the described leading screw of mobile drive of described leading screw can apply active force to described structural member；
Described test equipment also includes force transducer and displacement transducer, and described force transducer applies the size of active force for measuring described leading screw to structural member, and institute's displacement sensors is for measuring described structural member deformation quantity under the active force that described leading screw applies.
Test equipment the most according to claim 1, it is characterised in that one end of described leading screw is provided with force application board, the described force application board of mobile drive of described leading screw applies active force to described structural member, and described force transducer is arranged between described leading screw and force application board.
Test equipment the most according to claim 2, it is characterised in that one end of described leading screw has external screw thread, described force transducer is connected with described threads of lead screw.
Test equipment the most according to claim 2, it is characterised in that described test equipment also includes that sleeve pipe, described casing pipe sleeve are located at outside described leading screw, and institute's displacement sensors is arranged on described sleeve pipe.
Test equipment the most according to claim 4, it is characterised in that described test equipment also includes that clamping device, institute's displacement sensors are fixed on the end of described sleeve pipe by described clamping device.
Test equipment the most according to claim 5, it is characterised in that described clamping device is fixed on the end of described sleeve pipe, described clamping device includes:
Cylindrical body, fixes with described sleeve pipe and is connected, and be coaxially disposed；
Being fixed on the fixed plate on described cylindrical body inwall, it is semi-circular shape that described fixed plate is perpendicular to the cross section of described casing axis；
The arcuation pressure strip being oppositely arranged with described fixed plate, described pressure strip has the push rod through described cylindrical body away from the one side at its center, described push rod has, with described cylindrical body, the screw thread coordinated, and can be pressed on the end face of described fixed plate by institute's displacement sensors by screwing described push rod.
Test equipment the most according to claim 6, it is characterised in that the end of described push rod has handle, screws described push rod by described handle.
Test equipment the most according to claim 4, it is characterised in that described spiral lifting mechanism also includes housing, described leading screw passes described housing；
Described spiral lifting mechanism also includes worm screw and the worm gear being arranged in described housing, and described worm screw passes described housing, and vertical with described leading screw, and described worm screw is installed with described worm gear, and described leading screw is installed with described worm gear；
Described force transducer and displacement transducer are positioned at the both sides of described housing.
Test equipment the most according to claim 8, it is characterised in that described sleeve pipe is structure as a whole with described housing.
Test equipment the most according to claim 8, it is characterised in that described spiral lifting mechanism also includes that power source, the outfan of described power source are connected with one end of described worm screw, drives described worm screw to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521108551.6U CN205593721U (en) | 2015-12-28 | 2015-12-28 | Test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521108551.6U CN205593721U (en) | 2015-12-28 | 2015-12-28 | Test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205593721U true CN205593721U (en) | 2016-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521108551.6U Active CN205593721U (en) | 2015-12-28 | 2015-12-28 | Test device |
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| Country | Link |
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| CN (1) | CN205593721U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403374A (en) * | 2015-12-28 | 2016-03-16 | 北京汽车研究总院有限公司 | Test device |
-
2015
- 2015-12-28 CN CN201521108551.6U patent/CN205593721U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403374A (en) * | 2015-12-28 | 2016-03-16 | 北京汽车研究总院有限公司 | Test device |
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| GR01 | Patent grant |