CN105318813A - Keyway symmetry measuring device - Google Patents
Keyway symmetry measuring device Download PDFInfo
- Publication number
- CN105318813A CN105318813A CN201510764758.7A CN201510764758A CN105318813A CN 105318813 A CN105318813 A CN 105318813A CN 201510764758 A CN201510764758 A CN 201510764758A CN 105318813 A CN105318813 A CN 105318813A
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- fluting
- measuring
- measurer body
- sounding rod
- groove
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention relates to the mechanical measurement device technical field, especially to a keyway symmetry measuring device. The central section of a measuring instrument body is provided with a groove; the upper end of the groove is in a reversed U shape; two sides of the reversed U shape extend downwards and form a circular part on the bottom of the groove; V-shaped projections are oppositely arranged on two sides of the groove above the circular part. The top end of the measuring instrument body is provided with a measuring device; the bottom end of the measuring instrument body is provided with a support device. The measuring device comprises a measuring rod penetrating the top surface of the measuring instrument body, and extending into the groove, a locknut sleeving the measuring rod in the groove, a spring sleeving the measuring rod between the locknut and the measuring instrument body, a lever indicator connected to the bottom end of the measuring rod, and a rotary handwheel arranged on the top of the measuring rod. The keyway symmetry measuring device is convenient to measure, and has high measuring precision.
Description
Technical field
The present invention relates to mechanical measuring device technical field, particularly relate to key-groove symmetry tester.
Background technology
Keyway processes a groove matched with key on axle or in hole, is used for fitting key, with transmitting torque; Due to keyway need with key with the use of, therefore to keyway symmetry require higher; Current measurement keyway symmetry is generally the distance measuring keyway two sides cutter center line; But because keyway is opened on axle, be subject to the restriction of measured axis structure, therefore measure comparatively difficulty.
Summary of the invention
The object of this invention is to provide a kind of measurement conveniently, and the key-groove symmetry tester that measuring accuracy is higher.
Technical scheme of the present invention is as follows:
Key-groove symmetry tester, comprises measurer body, and described measurer body central authorities are provided with fluting, and this fluting upper end is in falling " U " shape, and fluting falls two sides of " U " shape and converges to downward-extension and in fluting bottom and form semicircular part; Fluting both sides above described semicircular part are provided with " V " shape projection relatively; Described measurer body top is provided with measurement mechanism, and measurer body bottom is provided with bracing or strutting arrangement; Described measurement mechanism comprises and runs through measurer body end face and the sounding rod stretched in fluting, set nut sheathed on sounding rod in fluting, spring sheathed on sounding rod between set nut and measurer body, the lever indicator that sounding rod bottom connects, and the rotation hand wheel that sounding rod top is arranged.
Described bracing or strutting arrangement comprises and runs through measurer body bottom surface and the bolt stretched in fluting half-round.By arranging bolt in measurer body bottom surface, in order to realization to the support of tested shaft with key way and fixing effect.
Described bracing or strutting arrangement comprises and runs through measurer body bottom surface and the bolt stretched in fluting half-round, and the motor that bolt bottom surface connects.By arranging motor, when measuring, when tightening fastening bolt, only need starter motor, convenient and swift, mechanization degree is high.
Also comprise the locating piece to keyway bottom surface centering.For before measuring to the keyway centering on tested shaft with key way, to improve measuring accuracy.
The invention has the beneficial effects as follows: by bolt and lever indicator with the use of, to realize the measurement to keyway symmetry; When measuring, after only need first utilizing locating piece centering, then change lever indicator, rotating lever dial gauge, the change of observed reading, can realize the measurement of symmetry, this measuring process is simple and convenient, and it is comparatively accurate to measure structure.
Accompanying drawing explanation
By the detailed description below in conjunction with accompanying drawing, aforesaid and other object, the feature and advantage of the present invention will become apparent.
Wherein: Fig. 1 is structural representation of the present invention;
Fig. 2 is electric machine structure schematic diagram of the present invention;
Fig. 3 is positioning block structure schematic diagram of the present invention;
In accompanying drawing, 1 is measurer body, and 2 is fluting, and 3 is side, and 4 is semicircular part, 5 is sounding rod, and 6 is set nut, and 7 is spring, and 8 is lever indicator, and 9 is rotation hand wheel, 10 is bolt, and 11 is motor, and 12 is tested shaft with key way, and 13 is " V " shape projection, and 14 is locating piece.
Embodiment
Embodiment 1
Shown in Fig. 1-Fig. 3, key-groove symmetry tester, comprises measurer body 1, and described measurer body central authorities are provided with fluting 2, and this fluting upper end is in falling " U " shape, and fluting falls two sides 3 of " U " shape and converges to downward-extension and in fluting bottom and form semicircular part 4; Fluting both sides above described semicircular part are provided with " V " shape projection 13 relatively; Described measurer body top is provided with measurement mechanism, and measurer body bottom is provided with bracing or strutting arrangement; Described measurement mechanism comprises and runs through measurer body end face and the sounding rod 5 stretched in fluting, set nut 6 sheathed on sounding rod in fluting, spring 7 sheathed on sounding rod between set nut and measurer body, the lever indicator 8 that sounding rod bottom connects, and the rotation hand wheel 9 that sounding rod top is arranged; Described bracing or strutting arrangement comprises and runs through measurer body bottom surface and the bolt 10 stretched in fluting half-round; Also comprise for the locating piece 14 to keyway bottom surface centering.
During measurement, tested shaft with key way is put into the rounded portions of measurer body, rotate tested shaft with key way, the locating piece be arranged on sounding rod is made to enter in keyway, under Compress Spring effect on sounding rod, the bottom surface of locating piece and the bottom surface close contact of tested shaft with key way, then tighten trip bolt, makes " V " shape projection internal fixtion of tested shaft with key way in measurer body; Due to the certralizing ability of " V " shape projection and the centering certralizing ability of locating piece, therefore, the center of the central axis of sounding rod in keyway bottom surface also by tested shaft with key way, subsequently, take off center bridge, change lever indicator, and with holding screw, it is locked.The gauge head of adjustment sounding rod and lever indicator, makes it contact a side of keyway, rotation measuring bar gently, reads the reading on dial gauge; Make sounding rod turn over 180 °, use the same method and measure the another side of keyway, read reading, the difference of twice survey measurements is exactly the symmetry error of keyway; 2 points in the same key slot side of keyway length direction direction finding, the difference of its reading is exactly long to symmetry error.
Embodiment 2
On the basis of embodiment 1, described bracing or strutting arrangement comprises and runs through measurer body bottom surface and the bolt 10 stretched in fluting half-round, and the motor 11 that bolt bottom surface connects.By arranging motor, when measuring, when tightening fastening bolt, only need starter motor, convenient and swift, mechanization degree is high.
Embodiment 3
On the basis of embodiment 1, described measurer body and bolt all adopt the stainless steel material of plating nickel on surface.During owing to measuring, " V " shape projection, bolt need and tested shaft with key way Long Term Contact, by stainless steel surfaces nickel plating, and anti-wear performance with bolt concrete with recruitment, the serviceable life of prolongation key-groove symmetry tester.
The above is only preferred embodiment of the present invention, not does any pro forma restriction to the present invention, every according in technical spirit of the present invention to any simple modification, equivalent variations that above embodiment is done, all fall within protection scope of the present invention.
Claims (4)
1. key-groove symmetry tester, is characterized in that, comprises measurer body, and described measurer body central authorities are provided with fluting, and this fluting upper end is in falling " U " shape, and fluting falls two sides of " U " shape and converges to downward-extension and in fluting bottom and form semicircular part; Fluting both sides above described semicircular part are provided with " V " shape projection relatively; Described measurer body top is provided with measurement mechanism, and measurer body bottom is provided with bracing or strutting arrangement; Described measurement mechanism comprises and runs through measurer body end face and the sounding rod stretched in fluting, set nut sheathed on sounding rod in fluting, spring sheathed on sounding rod between set nut and measurer body, the lever indicator that sounding rod bottom connects, and the rotation hand wheel that sounding rod top is arranged.
2. key-groove symmetry tester according to claim 1, is characterized in that, described bracing or strutting arrangement comprises and runs through measurer body bottom surface and the bolt stretched in fluting half-round.
3. key-groove symmetry tester according to claim 1, is characterized in that, described bracing or strutting arrangement comprises and runs through measurer body bottom surface and the bolt stretched in fluting half-round, and the motor that bolt bottom surface connects.
4. key-groove symmetry tester according to claim 1, is characterized in that, also comprises the locating piece to keyway bottom surface centering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510764758.7A CN105318813A (en) | 2015-11-11 | 2015-11-11 | Keyway symmetry measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510764758.7A CN105318813A (en) | 2015-11-11 | 2015-11-11 | Keyway symmetry measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105318813A true CN105318813A (en) | 2016-02-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510764758.7A Pending CN105318813A (en) | 2015-11-11 | 2015-11-11 | Keyway symmetry measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105318813A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990813A (en) * | 2017-11-24 | 2018-05-04 | 四川凌峰航空液压机械有限公司 | The detection method of shaft end rectangle keyway plane symmetry site error |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2034677U (en) * | 1988-09-07 | 1989-03-22 | 北京二七机车工厂 | Keygroove inspection device for level reverse rotation type shaft |
| CN202119375U (en) * | 2011-05-27 | 2012-01-18 | 上海东方泵业(集团)有限公司 | Gauge for symmetry degree of shaft key slot |
| CN202119376U (en) * | 2011-06-10 | 2012-01-18 | 上海东方泵业(集团)有限公司 | Key groove symmetry measuring instrument for shaft |
| CN202836484U (en) * | 2012-08-30 | 2013-03-27 | 陈硕 | Symmetry gauge for both sides of axis pair keyway of fast roll shaft |
| CN204064213U (en) * | 2014-08-06 | 2014-12-31 | 潍柴动力股份有限公司 | A kind of key-groove symmetry tester |
| CN104390570A (en) * | 2014-11-29 | 2015-03-04 | 常州格瑞特车灯有限公司 | Symmetry degree measuring device for shaft keyway |
| CN104457522A (en) * | 2014-11-28 | 2015-03-25 | 盛瑞传动股份有限公司 | Method for measuring keyway symmetry degree of shaft part |
| CN204404975U (en) * | 2014-12-31 | 2015-06-17 | 山西省机电设计研究院 | The symmetry degree gauge of the convex key of a kind of automobile valve core |
-
2015
- 2015-11-11 CN CN201510764758.7A patent/CN105318813A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2034677U (en) * | 1988-09-07 | 1989-03-22 | 北京二七机车工厂 | Keygroove inspection device for level reverse rotation type shaft |
| CN202119375U (en) * | 2011-05-27 | 2012-01-18 | 上海东方泵业(集团)有限公司 | Gauge for symmetry degree of shaft key slot |
| CN202119376U (en) * | 2011-06-10 | 2012-01-18 | 上海东方泵业(集团)有限公司 | Key groove symmetry measuring instrument for shaft |
| CN202836484U (en) * | 2012-08-30 | 2013-03-27 | 陈硕 | Symmetry gauge for both sides of axis pair keyway of fast roll shaft |
| CN204064213U (en) * | 2014-08-06 | 2014-12-31 | 潍柴动力股份有限公司 | A kind of key-groove symmetry tester |
| CN104457522A (en) * | 2014-11-28 | 2015-03-25 | 盛瑞传动股份有限公司 | Method for measuring keyway symmetry degree of shaft part |
| CN104390570A (en) * | 2014-11-29 | 2015-03-04 | 常州格瑞特车灯有限公司 | Symmetry degree measuring device for shaft keyway |
| CN204404975U (en) * | 2014-12-31 | 2015-06-17 | 山西省机电设计研究院 | The symmetry degree gauge of the convex key of a kind of automobile valve core |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990813A (en) * | 2017-11-24 | 2018-05-04 | 四川凌峰航空液压机械有限公司 | The detection method of shaft end rectangle keyway plane symmetry site error |
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Application publication date: 20160210 |
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| RJ01 | Rejection of invention patent application after publication |