CN103673952A - Device and method for measuring raceway of one-way overrunning clutch directional sleeve - Google Patents
Device and method for measuring raceway of one-way overrunning clutch directional sleeve Download PDFInfo
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- CN103673952A CN103673952A CN201310754881.1A CN201310754881A CN103673952A CN 103673952 A CN103673952 A CN 103673952A CN 201310754881 A CN201310754881 A CN 201310754881A CN 103673952 A CN103673952 A CN 103673952A
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Abstract
The invention provides a device and a method for measuring a raceway of a one-way overrunning clutch directional sleeve and belongs to the technical field of measurement. The invention solves the problem of low measurement accuracy of existing one-way sleeve raceway size measuring method and measuring instrument. The device for measuring the raceway of the one-way overrunning clutch directional sleeve comprises a working table with a columnar positioning core and a base; the base is provided with a datum rod in parallel to the axis of the positioning core and the datum rod is positioned at one side of the positioning core; the base is also provided with a feeding mechanism capable of driving the datum rod to horizontally move and a rod-shaped measuring bar; the axis of the measuring bar is in parallel to the axis of the positioning core and the lower end of the measuring bar is connected with a first guide rod capable of axially moving; the working table is also provided with a measuring meter; and a measuring head of the measuring meter is abutted against the rear end of the first guide rod. The method for measuring the raceway of the one-way overrunning clutch directional sleeve comprises the following steps: A, installing a workpiece; B, determining the datum; and C, carrying out measurement. The device and the method for measuring the raceway of the one-way overrunning clutch directional sleeve have higher accuracy.
Description
Technical field
The invention belongs to field of measuring technique, relate to a kind of directed sleeve rolling way measuring device and method, particularly measurement mechanism and the method for the raceway of the directed sleeve of a kind of mono-directional overrun clutch.
Background technology
Actuating motor mono-directional overrun clutch; its effect is that actuating motor output torque is delivered on the ring gear of engine; the rotation of drive ring gear; when after engine start, rotating speed reaches certain limit; one-way clutch is realized and being surmounted; being that proverb is said oppositely skids, and plays the effect of protection starting motor, finally exits engagement.The size of the directed sleeve raceway of mono-directional overrun clutch (eccentric arc) has been determined the ability of carry-over moment, raceway is bigger than normal occurs that gear and roller-contact cylindrical produce sliding friction, at the lower generation high temperature that runs up, cause spring to follow the string, there is two-way skidding in isolator; Raceway less than normal to isolator to surmount performance unfavorable, reduce equally overrunning clutch serviceable life.
A kind of one-way-sleeve raceway dimension measurement method and the measuring instrument [application number: 201010608354.6 that openly propose as Chinese patent literature data, Granted publication number: CN102564254A], this measuring method comprises following step: first supporting base is arranged on base plate, again special-shaped centring ring is connected on supporting base with joint bolt, then locating core is inserted in special-shaped centring ring, measuring oscillating bar is fixed on supporting base with having strong market potential, finally dial framework and dial gauge are together installed and be fixed on base plate, during measurement, first use calibrated bolck (calibrated bolck is accomplished product size) calibration dial gauge, make its position to zero, then be placed on measuring instrument product is as shown below, measuring instrument only has 3 special-shaped inner chambers of contact of decile, with have gentle hands, gently rotate product and find minimum value, it is the relation of l:2 that measuring oscillating bar shown in figure below is utilized the lever principle arm of force, so the value shown in dial gauge is the twice of actual value, the position of seeing dial gauge pointer is on the left side of zero-bit or the right side, according to actual conditions, half of this value and the numerical value of calibrated bolck are superposeed or subtracted each other.This measuring instrument comprises: locating core, and special-shaped centring ring, joint bolt, supporting base, has strong market potential, measuring oscillating bar, base plate, dial framework, dial gauge; Supporting base is arranged on base plate, and special-shaped centring ring is connected on supporting base with joint bolt, and locating core is inserted in special-shaped centring ring, and measuring oscillating bar is fixed on supporting base with having strong market potential, and dial framework and dial gauge are together installed and are fixed on base plate.But this measuring instrument is usingd locating core as benchmark, can not measure accurately the relative position at the dead point between different unidirectional raceways, therefore measure not accurate enough.
Summary of the invention
The object of the invention is to have the problems referred to above for existing technology, proposed measurement mechanism and the method for the raceway of the directed sleeve of mono-directional overrun clutch that a kind of measuring accuracy is higher.
Object of the present invention can realize by following technical proposal: the measurement mechanism of the raceway of the directed sleeve of mono-directional overrun clutch, comprise worktable, described worktable is provided with the locating core of column, it is characterized in that, on described worktable, be also provided with base, described base is provided with baseline rod, described baseline rod is positioned at a side of described locating core and be arranged in parallel with the axis of described locating core, on described base, be also provided with the feed mechanism that can drive described baseline rod to move horizontally, on described base, be also provided with the axis of the sounding rod that is shaft-like and described sounding rod and the axis of described locating core be arranged in parallel, the lower end of described sounding rod is connected with guide pole one, described guide pole one can move axially, on described worktable, be also provided with meter, the rear end of the measuring head of described meter and described guide pole one leans.
When measuring, first by adjusting meter and make sounding rod in reference position, again abutment sleeve is enclosed within on locating core, by feed mechanism, the sidewall of baseline rod is resisted against on the dead point of raceway of abutment sleeve, and on the dead point of the sidewall that makes sounding rod near another raceway of abutment sleeve.By regulating meter that the sidewall of sounding rod is resisted against on the dead point of another raceway of abutment sleeve, by the relative position of reading dead point of meter.By usining a dead point as reference point, measure another dead point, have and measure accurately, the advantage that measuring accuracy is high.
In the measurement mechanism of the raceway of the directed sleeve of above-mentioned mono-directional overrun clutch, between described base and described guide pole one, be provided with spring one, one end of described spring one is connected with described guide pole one, and the other end of described spring one is connected with described guide pole one.By the elastic force of spring one, guide pole one can be resetted, there is use advantage comparatively easily.
In the measurement mechanism of the raceway of the directed sleeve of above-mentioned mono-directional overrun clutch, on described base, level is provided with spacing sliding sleeve one, described guide pole one is embedded on described spacing sliding sleeve one, the sidepiece of described guide pole one is fixed with handle one, the sidepiece of described spacing sliding sleeve one is provided with strip through-hole, and described handle one is through described strip through-hole.By handle one, can drive guide pole one relative limit sliding sleeve one slip, there is convenient operation.
In the measurement mechanism of the raceway of the directed sleeve of above-mentioned mono-directional overrun clutch, the lower end of described baseline rod is fixed with and is horizontally disposed guide pole two, on described base, level is provided with spacing sliding sleeve two, and described guide pole two is embedded on described spacing sliding sleeve two.By guide pole two, be embedded on spacing sliding sleeve two, the movement of sounding rod is play the guiding role, there is mobile advantage accurately.
In the measurement mechanism of the raceway of the directed sleeve of above-mentioned mono-directional overrun clutch, described feed mechanism comprises the screw one being threaded on described base, and the inner of described screw one is axially connected with described guide pole two.By screw one, be connected with the screw thread of base, the lower end of screw one and guide pole two are axially connected, and make screw one can drive guide pole two to make horizontal reciprocating movement.
In the measurement mechanism of the raceway of the directed sleeve of above-mentioned mono-directional overrun clutch, described feed mechanism is the handle two that is connected in described guide pole 21 sides, between described base and described guide pole two, be provided with spring two, one end of described spring two is connected with described guide pole two, and the other end of described spring two is connected with described guide pole two.By the elastic force of spring two, guide pole two can be resetted, there is use advantage comparatively easily, by handle, can directly drive guide pole two to move back and forth.
In the measurement mechanism of the raceway of the directed sleeve of above-mentioned mono-directional overrun clutch, between described base and described worktable, be also provided with the elevating mechanism that can drive the relative described worktable of described base to do elevating movement, described elevating mechanism comprises the support being arranged on described worktable, the screw two that has been threaded on described support, the lower end of described screw two with described datum axle to being connected.By screw two, be connected with the screw thread of support, the lower end of screw and datum axle, to being connected, make screw two can drive base to do elevating movement.As another kind of mode, elevating mechanism is the bar-shaped trough that is arranged on support and is vertical setting, and base is provided with the bar shaped convex body matching with bar-shaped trough, and bar shaped convex body is embedded in bar-shaped trough, the outside of bar-shaped trough is provided with screw, and the inner of screw can be pushed up and is pressed on bar shaped convex body.
In the measurement mechanism of the raceway of the directed sleeve of above-mentioned mono-directional overrun clutch, the sidewall of described locating core is provided with annular convex shoulder, on described locating core, be also provided with the locating sleeve of tubular, the nut that has been threaded on described locating core, the lower surface of described nut is resisted against on the upper surface of described locating sleeve.By locating sleeve, workpiece top is pressed on annular convex shoulder, makes workpiece axial location, there is dismounting advantage comparatively easily.
In the measurement mechanism of the raceway of the directed sleeve of above-mentioned mono-directional overrun clutch, between described locating core and described worktable, be provided with back-moving spring, one end of described back-moving spring is connected with described worktable, and the other end of described back-moving spring is connected with described locating core.
Utilize the measurement mechanism of the raceway of the directed sleeve of above-mentioned mono-directional overrun clutch to measure a measuring method for the raceway of the directed sleeve of mono-directional overrun clutch, it is characterized in that, the method comprises the steps:
A, workpiece are installed: tested orienting cover cylinder is nested on locating core, and the cavity that makes abutment sleeve down, and locating sleeve is pressed in abutment sleeve top on locating core, and baseline rod and sounding rod are all positioned at the cavity of described abutment sleeve, and a dead point of baseline rod and abutment sleeve faces;
B, determine benchmark: feed mechanism drives baseline rod to move, a sidewall of baseline rod is resisted against on the dead point of the unidirectional raceway of correspondence of directed sleeve;
C, measurement: the handwheel by wheel measuring table is resisted against sounding rod at the dead point of another raceway of described abutment sleeve.
At the above-mentioned measurement mechanism that utilizes the raceway of the directed sleeve of above-mentioned mono-directional overrun clutch, measure in the measuring method of raceway of the directed sleeve of mono-directional overrun clutch, before steps A, first proofread and correct: the calibrated bolck of first making abutment sleeve, meter is measured to rectification, make the measuring head contacting with the measuring junction of meter in initial position.
At the above-mentioned measurement mechanism that utilizes the raceway of the directed sleeve of above-mentioned mono-directional overrun clutch, measure in the measuring method of raceway of the directed sleeve of mono-directional overrun clutch, in step B, by rotating screw one, screw one drives guide pole two side shifting outward, and the sidewall of baseline rod is resisted against on the dead point of the unidirectional raceway of correspondence of directed sleeve.By rotating screw one, drive the translation of guide pole two, there is operation for convenience and the comparatively simple advantage of structure.
At the above-mentioned measurement mechanism that utilizes the raceway of the directed sleeve of above-mentioned mono-directional overrun clutch, measure in the measuring method of raceway of the directed sleeve of mono-directional overrun clutch, after step C, by elevating mechanism, drive base to another different height, the handwheel by wheel measuring table is resisted against sounding rod at the dead point of another raceway of described abutment sleeve.By elevating mechanism, drive base to differing heights, can measure differing heights raceway, there is comparatively comprehensively advantage of measurement.
Compared with prior art, the measuring method of the raceway of the directed sleeve of measurement mechanism measurement mono-directional overrun clutch of the raceway of the directed sleeve of this mono-directional overrun clutch has the following advantages:
1, by regulating meter that the sidewall of sounding rod is resisted against on the dead point of another raceway of abutment sleeve, by the relative position of reading dead point of meter, using a dead point as reference point, measure another dead point, have and measure accurately, the advantage that measuring accuracy is high;
2, by the elastic force of spring one, guide pole one can be resetted, make abutment sleeve easy for removal and installation, there is use advantage comparatively easily;
3, by screw two, be connected with the screw thread of support, the lower end of screw and datum axle, to being connected, make screw two can drive base to do elevating movement, have advantages of simple in structure, easy to operate.
Accompanying drawing explanation
Fig. 1 is the schematic top plan view of measurement mechanism of the raceway of the directed sleeve of this mono-directional overrun clutch.
Fig. 2 is that the master of measurement mechanism of the raceway of the directed sleeve of this mono-directional overrun clutch looks schematic diagram.
In figure, 1, worktable; 1a, support; 2, locating core; 3, base; 4, baseline rod; 5, feed mechanism; 5a, screw one; 6, sounding rod; 7, guide pole one; 8, spacing sliding sleeve one; 9, meter; 10, spring one; 11, handle one; 12, guide pole two; 13, spacing sliding sleeve two; 14, elevating mechanism; 14a, screw two; 15, locating sleeve; 16, back-moving spring; 17, directed sleeve.
Embodiment
Be below specific embodiments of the invention by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
As illustrated in fig. 1 and 2, the measurement mechanism of the raceway of the directed sleeve of mono-directional overrun clutch, comprise worktable 1, worktable 1 is provided with the locating core 2 of column, is also provided with base 3 on worktable 1, and base 3 is provided with baseline rod 4, baseline rod 4 is positioned at a side of locating core 2 and be arranged in parallel with the axis of locating core 2, the lower end of baseline rod 4 is fixed with and is horizontally disposed guide pole 2 12, and on base 3, level is provided with spacing sliding sleeve 2 13, and guide pole 2 12 is embedded on spacing sliding sleeve 2 13.By guide pole 2 12, be embedded on spacing sliding sleeve 2 13, the movement of sounding rod 6 is play the guiding role, there is mobile advantage accurately.
On base 3, be also provided with the feed mechanism 5 that can drive baseline rod 4 to move horizontally, feed mechanism 5 comprises screw one 5a being threaded on base 3, and the inner of screw one 5a is axially connected with guide pole 2 12.As another kind of mode, feed mechanism 5, for being connected in the handle two of described guide pole 2 12 1 sides, is provided with spring two between base 3 and guide pole 2 12, and one end of spring two is connected with guide pole 2 12, and the other end of spring two is connected with guide pole 2 12.By the elastic force of spring two, guide pole 2 12 can be resetted, there is use advantage comparatively easily, by handle, can directly drive guide pole 2 12 to move back and forth.
On base 3, be in addition shaft-like sounding rod 6 and the axis of sounding rod 6 and the axis of locating core 2 and be arranged in parallel, the lower end of sounding rod 6 is connected with guide pole 1.On base 3, level is provided with spacing sliding sleeve 1, and guide pole 1 is embedded in spacing sliding sleeve 1, and the sidepiece of guide pole 1 is fixed with handle 1, and the sidepiece of spacing sliding sleeve 1 is provided with strip through-hole, and handle 1 is through strip through-hole.On worktable 1, be also provided with meter 9, the rear end of the measuring head of meter 9 and guide pole 1 leans.Between base 3 and guide pole 1, be provided with spring 1, one end of spring 1 is connected with guide pole 1, and the other end of spring 1 is connected with described guide pole 1.By the elastic force of spring 1, guide pole 1 can be resetted, there is use advantage comparatively easily.
Between base 3 and described worktable 1, be also provided with the elevating mechanism 14 that can drive the relative worktable 1 of base 3 to do elevating movement, elevating mechanism 14 comprises the support 1a being arranged on worktable 1, screw two 14a that have been threaded on support 1a, the lower end of screw two 14a is axially connected with base 3.By screw two 14a, be connected with the screw thread of support 1a, lower end and the base 3 of screw two 14a are axially connected, and make screw two 14a can drive base 3 to do elevating movement.As another kind of mode, elevating mechanism 14 is the bar-shaped trough that is arranged on support 1a and is vertical setting, and base 3 is provided with the bar shaped convex body matching with bar-shaped trough, and bar shaped convex body is embedded in bar-shaped trough, the outside of bar-shaped trough is provided with screw, and the inner of screw can be pushed up and is pressed on bar shaped convex body.
The sidewall of locating core 2 is provided with annular convex shoulder, is also provided with the locating sleeve 15 of tubular on locating core 2, the nut that has been threaded on locating core 2, and the lower surface of nut is resisted against on the upper surface of locating sleeve 15.Between locating core 2 and worktable 1, be provided with back-moving spring 16, one end of back-moving spring 16 is connected with worktable 1, and the other end of back-moving spring 16 is connected with locating core 2.
Utilize the measurement mechanism of the raceway of the directed sleeve of above-mentioned mono-directional overrun clutch to measure the measuring method of the raceway of the directed sleeve of mono-directional overrun clutch, the method comprises the steps: the installation of directed sleeve 17 and the step of determining benchmark, measurement.
First, when directed sleeve 17 is installed, tested directed sleeve 17 is nested on locating core 2, and the cavity that makes abutment sleeve 17 down, and locating sleeve 15 is pressed in abutment sleeve 17 tops on locating core 2, baseline rod 4 and sounding rod 6 are all positioned at the cavity of abutment sleeve 17, and baseline rod 4 faces with a dead point of abutment sleeve 17; By locating sleeve 15, workpiece top is pressed on annular convex shoulder, makes workpiece axial location, there is dismounting advantage comparatively easily.
While determining benchmark, by rotating screw one 5a, make guide pole 2 12 drive baseline rods 4 to move, a sidewall of baseline rod 4 is resisted against on the dead point of the unidirectional raceway of correspondence of directed sleeve 17;
During measurement: the handwheel by wheel measuring table 9 is resisted against sounding rod 6 at the dead point of another raceway of abutment sleeve 17, thereby read the relative position at two dead points, by usining a dead point as reference point, measure another dead point, have and measure accurately, the advantage that measuring accuracy is high.
In the time need to measuring the raceway of above-mentioned directed sleeve differing heights, during measurement, also can drive bases 3 to another different height by rotating screw two 14a, the handwheel by wheel measuring table 9 be resisted against sounding rod 6 at the dead point of another raceway of described abutment sleeve 17.When measuring end, can drive guide pole one 7 relative limit sliding sleeves 1 to slide by handle 1, sounding rod 6 is departed from from dead point, abutment sleeve 17 is taken off from locating core 2, there is convenient operation.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although more used the terms such as worktable 1, support 1a, locating core 2, base 3, baseline rod 4, feed mechanism 5, screw one 5a, sounding rod 6, guide pole 1, spacing sliding sleeve 1, meter 9, spring 1, handle 1, guide pole 2 12, spacing sliding sleeve 2 13, elevating mechanism 14, screw two 14a, locating sleeve 15, back-moving spring 16, directed sleeve 17 herein, do not got rid of the possibility of using other term.Use these terms to be only used to describe more easily and explain essence of the present invention; They are construed to any additional restriction is all contrary with spirit of the present invention.
Claims (10)
1. the measurement mechanism of the raceway of the directed sleeve of mono-directional overrun clutch, comprise worktable (1), described worktable (1) is provided with the locating core (2) of column, it is characterized in that, on described worktable (1), be also provided with base (3), described base (3) is provided with baseline rod (4), described baseline rod (4) is positioned at a side of described locating core (2) and be arranged in parallel with the axis of described locating core (2), on described base (3), be also provided with the feed mechanism (5) that can drive described baseline rod (4) to move horizontally, on described base (3), be also provided with the axis of the sounding rod (6) that is shaft-like and described sounding rod (6) and the axis of described locating core (2) be arranged in parallel, the lower end of described sounding rod (6) is connected with guide pole one (7), described guide pole one (7) can move axially, on described worktable (1), be also provided with meter (9), the rear end of the measuring head of described meter (9) and described guide pole one (7) leans.
2. the measurement mechanism of the raceway of the directed sleeve of mono-directional overrun clutch according to claim 1, it is characterized in that, between described base (3) and described guide pole one (7), be provided with spring one (10), one end of described spring one (10) is connected with described guide pole one (7), the other end of described spring one (10) is connected with described guide pole one (7), the upper level of described base (3) is provided with spacing sliding sleeve one (8), described guide pole one (7) is embedded in described spacing sliding sleeve one (8), the sidepiece of described guide pole one (7) is fixed with handle one (11), the sidepiece of described spacing sliding sleeve one (8) is provided with strip through-hole, described handle one (11) is through described strip through-hole.
3. the measurement mechanism of the raceway of the directed sleeve of mono-directional overrun clutch according to claim 1, it is characterized in that, the lower end of described baseline rod (4) is fixed with and is horizontally disposed guide pole two (12), the upper level of described base (3) is provided with spacing sliding sleeve two (13), and described guide pole two (12) is embedded on described spacing sliding sleeve two (13).
4. according to the measurement mechanism of the raceway of the directed sleeve of the mono-directional overrun clutch described in claim 1 or 2 or 3, it is characterized in that, described feed mechanism (5) comprises the screw one (5a) being threaded on described base (3), and the inner of described screw one (5a) is axially connected with described guide pole two (12).
5. according to the measurement mechanism of the raceway of the directed sleeve of the mono-directional overrun clutch described in claim 1 or 2 or 3, it is characterized in that, between described base (3) and described worktable (1), be also provided with the elevating mechanism (14) that can drive the relative described worktable (1) of described base (3) to do elevating movement, described elevating mechanism (14) comprises the support (1a) being arranged on described worktable (1), the screw two (14a) that has been threaded on described support (1a), the lower end of described screw two (14a) is axially connected with described base (3).
6. according to the measurement mechanism of the raceway of the directed sleeve of the mono-directional overrun clutch described in claim 1 or 2 or 3, it is characterized in that, the sidewall of described locating core (2) is provided with annular convex shoulder, on described locating core (2), be also provided with the locating sleeve (15) of tubular, the nut that has been threaded on described locating core (2), the lower surface of described nut is resisted against on the upper surface of described locating sleeve (15).
7. utilize the measurement mechanism of the raceway of the directed sleeve of above-mentioned mono-directional overrun clutch to measure a measuring method for the raceway of the directed sleeve of mono-directional overrun clutch, it is characterized in that, the method comprises the steps:
A, directed sleeve are installed: tested directed sleeve (17) is nested on locating core (2), and the cavity that makes abutment sleeve (17) down, and locating sleeve (15) is pressed in abutment sleeve (17) top on locating core (2), the cavity of the abutment sleeve (17) described in baseline rod (4) is all positioned at sounding rod (6), baseline rod (4) faces with a dead point of abutment sleeve (17);
B, determine benchmark: feed mechanism (5) drives baseline rod (4) mobile, a sidewall of baseline rod (4) is resisted against on the dead point of the unidirectional raceway of correspondence of directed sleeve (17);
C, measurement: the handwheel by wheel measuring table (9) is resisted against sounding rod (6) at the dead point of another raceway of described abutment sleeve (17).
8. the measurement mechanism that utilizes the raceway of the directed sleeve of above-mentioned mono-directional overrun clutch according to claim 7 is measured the measuring method of the raceway of the directed sleeve of mono-directional overrun clutch, it is characterized in that, before steps A, first proofread and correct: first use calibrated bolck, meter (9) is measured to rectification, make the measuring head contacting with the measuring junction of meter (9) in initial position.
9. the measurement mechanism that utilizes the raceway of the directed sleeve of above-mentioned mono-directional overrun clutch according to claim 7 is measured the measuring method of the raceway of the directed sleeve of mono-directional overrun clutch, it is characterized in that, in step B, by rotating screw two (14a), screw two (14a) drives guide pole two (12) side shifting outward, and the sidewall of baseline rod (4) is resisted against on the dead point of the unidirectional raceway of correspondence of directed sleeve (17).
10. according to the measurement mechanism of the raceway that utilizes the directed sleeve of above-mentioned mono-directional overrun clutch described in claim 7 or 8 or 9, measure the measuring method of the raceway of the directed sleeve of mono-directional overrun clutch, it is characterized in that, after step C, by elevating mechanism (14), drive base (3) to another different height, the handwheel by wheel measuring table (9) is resisted against sounding rod (6) at the dead point of another raceway of described abutment sleeve (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310754881.1A CN103673952B (en) | 2013-12-31 | 2013-12-31 | Device and method for measuring raceway of one-way overrunning clutch directional sleeve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310754881.1A CN103673952B (en) | 2013-12-31 | 2013-12-31 | Device and method for measuring raceway of one-way overrunning clutch directional sleeve |
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| CN103673952A true CN103673952A (en) | 2014-03-26 |
| CN103673952B CN103673952B (en) | 2017-01-25 |
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| CN110307768A (en) * | 2019-08-02 | 2019-10-08 | 大连民族大学 | A kind of the screw path dimension detecting device and its application method of ball-screw |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307768A (en) * | 2019-08-02 | 2019-10-08 | 大连民族大学 | A kind of the screw path dimension detecting device and its application method of ball-screw |
| CN110953972A (en) * | 2019-11-05 | 2020-04-03 | 新乡航空工业(集团)有限公司 | Inner hole coaxiality measuring device |
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| CN103673952B (en) | 2017-01-25 |
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