CN201285342Y - Impact height detection mechanism for impact test machine - Google Patents
Impact height detection mechanism for impact test machine Download PDFInfo
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- CN201285342Y CN201285342Y CNU2008202179088U CN200820217908U CN201285342Y CN 201285342 Y CN201285342 Y CN 201285342Y CN U2008202179088 U CNU2008202179088 U CN U2008202179088U CN 200820217908 U CN200820217908 U CN 200820217908U CN 201285342 Y CN201285342 Y CN 201285342Y
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- reel
- pulley
- shock
- rotary encoder
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Abstract
A shocking height measurement mechanism for a shock test machine is characterized by comprising a take-up pulley (1), a thread rope (2) and a rotating encoder (3), wherein the take-up pulley (1) is rotationally supported along a center shaft line; one end of the thread rope (2) is fixed on the take-up pulley (1), and the other end is a displacement measuring end (4); the take-up pulley (1) is provided with a coil spring (5) and is forced by coil spring force to rotate to wind the thread rope (2) onto the take-up pulley (1); and a code disc inside the rotating encoder (3) is connected with the take-up pulley (1) in a transmission way. The utility model converts the raising displacement amount of a test stand surface into the rotation amount of the take-up pulley (1) and then the rotation amount is converted into an electrical pulse signal by the rotating encoder to be output, thereby the utility model is convenient to realize full-automatic program control so as to greatly enhance the automation level of a lifting mechanism of the shock test machine and the precision of the shocking height measurement.
Description
Technical field
The utility model relates to the dynamic environmental test apparatus field, is specifically related to the shock height testing agency on a kind of drop type shock table.This mechanism is used to obtain to represent the electric signal of test table top and test article hoisting depth.
Background technology
Shock table is mainly used to the environment that analog equipment is impacted in use, loading and unloading and transportation, determining the adaptability of this product to various impulsive forces, and evaluate the integrity of its structure, for the quality of examining this product provides rational foundation.It is widely used in fields such as weaponry, electromechanical equipment, instrument and meter, household electrical appliance.
Drop type shock table principle of work is: will test table top and together rise to predetermined altitude, and allow the test table top fall then together with test article together with test article (being test specimen), and impact below the waveform generator of striker on produce shock pulse.At different impact acceleration requirements, the height that the test table top is scheduled to promote together with test article is different, and the mode of the table top of control test at present shock height has following two kinds:
A, manually range estimation control; Set up Vertical surveyors' staff in that shock table is other, when beginning impulse test, the operator manually boots the hoisting gear band and the test table top and rise at every turn, when the height of operator's visual test table top reaches predetermined altitude, and the manual operation test table top that stops again.This mode is comparatively backward, the operator's that places one's entire reliance upon manual operations and range estimation, shock height out of true.
B, control with travel switch; Corresponding to the test table top travel switch is set on shock table, travel switch inserts in the control system of hoisting gear, and the vertical slip of the relative shock table of the trip switch is adjustable; Before each impulse test, the operator is adjusted to predetermined height with modes such as dipstick meterings with travel switch earlier, starts hoisting gear then, just in time touch travel switch when the test table top rises to predetermined altitude, thereby hoisting gear quits work automatically.This mode is more advanced than above-mentioned a mode, but still needs the height and position of manual shift travel switch, and consumption is artificial, and automaticity is still not high enough.
Above-mentioned existing two kinds of control modes are all more backward, can expect that optimum control type is computer program controlled mode, in order to realize computer program controlled mode, the mechanism that just needs a determination test table top lifting height, the height that will test the table top rising with this mechanism is transformed into the electric signal input microprocessor and realizes program control.
Summary of the invention
The purpose of this utility model provides a kind of shock height testing agency of shock table, detects the electric signal that obtains representative test table top lifting height with it, so that it is computer program controlled to realize that the test table top promotes, improves automaticity.
For achieving the above object, the technical solution adopted in the utility model is: a kind of shock height testing agency of shock table, form by take-up reel, cotton rope and rotary encoder, described take-up reel is along the central axis rotational support, described cotton rope one end is fixed on the take-up reel, the other end is the displacement detecting end, and effect has wind spring, wind spring power to force the take-up reel rotation that cotton rope is wound on the take-up reel on the described take-up reel; Code-disc and take-up reel in the described rotary encoder are in transmission connection.
Related content in the technique scheme is explained as follows:
1, in the such scheme, " code-disc in the described rotary encoder is in transmission connection with take-up reel " is meant that the code-disc in the rotary encoder can directly be connected with take-up reel, also can connect through gear train.Preferred version is: the code-disc in the described rotary encoder is fixedlyed connected with the take-up reel concentric, is connected through shaft coupling with the center axle head of take-up reel as the central shaft with code-disc.
2, in the such scheme, described " rotary encoder " is existing general-purpose device, and it generally forms preferable employing increment type pulse encoder SPC by code-disc, photoemission and the receiving device etc. of band central shaft.
3, in the such scheme, described " displacement detecting end " is meant the end that directly is connected with tested displacement thing or draws with the motion of tested displacement thing.This displacement detecting end specifically can connect on the test table top of shock table or the shock table other with parts of test table top motion.
The utility model principle of work is: shown in accompanying drawing 1, accompanying drawing 2, take-up reel 1 of the present utility model is arranged on the bottom or the top of shock table, parts with the motion of test table top on the test table top of the displacement detecting end 4 of its cotton rope 2 and shock table or on the shock table are connected, thereby during the lifter motion of test table top, traction take-up reel 1 rotation because of cotton rope 2, this moment, this electric impulse signal promptly comprised the information of lifting displacement (highly) of the test table top of shock table by the amount of spin output electric pulse signal of rotary encoder 3 according to take-up reel 1; Then, with this electric impulse signal input microprocessor, how many displacements that can calculate each pulse representative test table top that scrambler sends by take-up reel girth, coder parameters is, thereby draw the hoisting depth of real-time test table top, and judge by software whether existing hoisting depth arrives predefined shock height value, if when reaching preset value, microprocessor outputs signal to the band-type brake locking of band-type brake mechanism, stop to output signal to hoisting gear, make the hoisting gear of control test table top stop action, thereby realize that full automatic program-control promotes.
Because the technique scheme utilization, the utility model compared with prior art has following advantage:
1, because special design of the present utility model, the lifting displacement of test table top is changed into the rotation amount of take-up reel, be translated into electric impulse signal output with rotary encoder then, made things convenient for the realization of full automatic program-control, thereby improve the automatization level of shock table hoisting gear greatly, improved the shock height control accuracy.
2, owing to special design of the present utility model, simple in structure, price economy, easy to maintenance, and measuring accuracy is guaranteed.
Description of drawings
Accompanying drawing 1 is the utility model structural representation;
Accompanying drawing 2 is for using the control principle block diagram of full automatic program-control elevator system of the present utility model.
In the above accompanying drawing: 1, take-up reel; 2, cotton rope; 3, rotary encoder; 4, displacement detecting end; 5, wind spring; 6, rolling bearing; 7, support; 8, support; 9, shaft coupling; 10, briquetting.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment: shown in accompanying drawing 1, a kind of shock height testing agency of shock table, form by take-up reel 1, cotton rope 2 and rotary encoder 3, described take-up reel 1 is supported on the bottom (the best is arranged on the striker) of shock table by support 7 along its central axis, described cotton rope 2 one ends are fixed on the take-up reel 1, the other end is a displacement detecting end 4, and this displacement detecting end 4 directly is connected with the test table top or draws with the lifter motion of test table top.And be provided with wind spring 5 in the described take-up reel 1, wind spring acts on the take-up reel, and wind spring power forces take-up reel 1 to rotate cotton rope 2 is wound on the take-up reel 1.It is other that described rotary encoder 3 is arranged on take-up reel 1 by support 8, and the central shaft of the code-disc of rotary encoder 3 is fixedlyed connected through shaft coupling 9 with take-up reel 1 concentric, and support 7 is parallel to each other with support 8.Specifically, shown in accompanying drawing 1, described take-up reel 1 center is arranged on the support 7 by rolling bearing 6, and the fixed connection structure of described cotton rope 2 one ends and take-up reel 1 is; The end of cotton rope 2 is to push down by briquetting 10, and briquetting 10 is connected with take-up reel with screw again.Described rotary encoder 3 adopts the increment type pulse encoder.
Principle of work is: see accompanying drawing 1, shown in the accompanying drawing 2, during the lifter motion of test table top, traction because of cotton rope 2, the acting force that take-up reel 1 overcomes wind spring 5 rotates unwrapping wire, this moment is by the amount of spin output electric pulse signal of rotary encoder 3 according to take-up reel 1, this electric impulse signal has promptly comprised the information of lifting displacement (highly) of the test table top of shock table, then, with this electric impulse signal input microprocessor, by the take-up reel girth, how many displacements that coder parameters can calculate each pulse representative test table top that scrambler sends is, thereby draw the hoisting depth of real-time test table top, and judge by software whether existing hoisting depth arrives predefined shock height value, if when reaching preset value, microprocessor outputs signal to the band-type brake locking of band-type brake mechanism, stop to output signal to hoisting gear, make the hoisting gear of control test table top stop action, thereby realize that full automatic program-control promotes.
The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection domain of the present utility model.
Claims (3)
1, a kind of shock height testing agency of shock table, it is characterized in that: form by take-up reel (1), cotton rope (2) and rotary encoder (3), described take-up reel (1) is along the central axis rotational support, described cotton rope (2) one ends are fixed on the take-up reel (1), the other end is displacement detecting end (4), and described take-up reel (1) effect of going up has wind spring (5), wind spring power to force take-up reel (1) rotation that cotton rope (2) is wound on the take-up reel (1); Code-disc in the described rotary encoder (3) and take-up reel (1) are in transmission connection.
2, the shock height testing agency of shock table according to claim 1 is characterized in that: the code-disc in the described rotary encoder (3) is fixedlyed connected with take-up reel (1) concentric.
3, the shock height testing agency of shock table according to claim 1 is characterized in that: described rotary encoder (3) is the increment type pulse encoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202179088U CN201285342Y (en) | 2008-11-14 | 2008-11-14 | Impact height detection mechanism for impact test machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202179088U CN201285342Y (en) | 2008-11-14 | 2008-11-14 | Impact height detection mechanism for impact test machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201285342Y true CN201285342Y (en) | 2009-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202179088U Expired - Lifetime CN201285342Y (en) | 2008-11-14 | 2008-11-14 | Impact height detection mechanism for impact test machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201285342Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994871A (en) * | 2014-03-27 | 2014-08-20 | 山东省产品质量检验研究院 | Fully automatic test machine for severity level impact capacity of fire electronic product |
| CN104655387A (en) * | 2015-03-05 | 2015-05-27 | 中国人民解放军海军工程大学 | Automatic falling type impact test bed and test method thereof |
| CN108922796A (en) * | 2018-05-14 | 2018-11-30 | 湖南柯立凯科技开发有限公司 | A kind of detection method and device that aluminium electrolutic capacitor is with a tight waist |
| CN110954418A (en) * | 2019-12-12 | 2020-04-03 | 苏州苏试试验集团股份有限公司 | Control device and control method of small impact test bed |
-
2008
- 2008-11-14 CN CNU2008202179088U patent/CN201285342Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994871A (en) * | 2014-03-27 | 2014-08-20 | 山东省产品质量检验研究院 | Fully automatic test machine for severity level impact capacity of fire electronic product |
| CN104655387A (en) * | 2015-03-05 | 2015-05-27 | 中国人民解放军海军工程大学 | Automatic falling type impact test bed and test method thereof |
| CN104655387B (en) * | 2015-03-05 | 2017-06-30 | 中国人民解放军海军工程大学 | A kind of automatic falling body type shock table and its test method |
| CN108922796A (en) * | 2018-05-14 | 2018-11-30 | 湖南柯立凯科技开发有限公司 | A kind of detection method and device that aluminium electrolutic capacitor is with a tight waist |
| CN108922796B (en) * | 2018-05-14 | 2020-08-18 | 湖南柯立凯科技开发有限公司 | Method and device for detecting girdling of aluminum electrolytic capacitor |
| CN110954418A (en) * | 2019-12-12 | 2020-04-03 | 苏州苏试试验集团股份有限公司 | Control device and control method of small impact test bed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SUZHOU GUANGBO MECHANICS ENVIRONMENT LABORATORY CO Free format text: FORMER OWNER: SUZHOU TESTING INSTRUMENT FACTORY Effective date: 20110425 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110425 Address after: 215129 55 deer Road, hi tech Development Zone, Jiangsu, Suzhou Patentee after: Suzhou Guangbo Mechanics Environment Laboratory Co., Ltd. Address before: 215129 55 deer Road, hi tech Development Zone, Jiangsu, Suzhou Patentee before: Suzhou Testing Instrument Factory |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215129 55 deer Road, hi tech Development Zone, Jiangsu, Suzhou Patentee after: Suzhou Su extensive environmental reliability laboratory Co., Ltd. Address before: 215129 55 deer Road, hi tech Development Zone, Jiangsu, Suzhou Patentee before: Suzhou Guangbo Mechanics Environment Laboratory Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090805 |