CN105387832A - Steering tube lower transmission shaft running clearance test bench and test method - Google Patents
Steering tube lower transmission shaft running clearance test bench and test method Download PDFInfo
- Publication number
- CN105387832A CN105387832A CN201510737128.0A CN201510737128A CN105387832A CN 105387832 A CN105387832 A CN 105387832A CN 201510737128 A CN201510737128 A CN 201510737128A CN 105387832 A CN105387832 A CN 105387832A
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- China
- Prior art keywords
- steering column
- drive shaft
- lower drive
- column lower
- running clearance
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/16—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring distance of clearance between spaced objects
Abstract
The invention provides a steering tube lower transmission shaft running clearance test bench, which comprises a bottom plate, a test rod and a heavy load, wherein the bottom plate is provided with a supporting frame, a clamping frame, an auxiliary clamping frame and a displacement measurement device; the test rod comprises a transverse rod and a rotation shaft connected onto the central position of the transverse rod, the transverse rod and the rotation shaft form a T-shaped structure, two ends of the transverse rod are both provided with hooks, the rotation shaft is supported on the supporting frame in a rotation mode, and one end of the rotation shaft is fixedly provided with a clamping head. The invention also provides a steering tube lower transmission shaft running clearance test method. The cost is low, the precision is high, generality is strong, and question query is accurate.
Description
Technical field
The present invention relates to field of vehicle part detection, be specifically related to steering column lower drive shaft running clearance test table and method of testing.
Background technology
Auto steerer is ingredient important in automobile chassis system, and automotive steering is used to the mechanism keeping or change vehicle traveling direction, when motor turning travels, also will ensure coordinated angle relation between each deflecting roller.Driver, by handling steering, makes automotive be held in straight line or turning motion state, or above-mentioned two kinds of motion states is changed mutually.
Because the importance of automobile steering system, rational space is arranged and reliable and stable transmission is extremely important.At present in order to improve the comfortableness of passenger, domestic truck is all towards car future development, and steering all have employed the rack and pinion steering gear identical with car.As shown in Figure 1, what domestic truck was equipped with is mostly cab over engine, steering column 2 is positioned at the front of steering gear 6, steering column 2 cannot directly be connected with steering gear 6, the change being realized transmission direction by a kind of commutator 4 is needed between steering column 2 and steering gear 6, like this, the rotation of bearing circle 1 just can pass to steering column 2, steering column lower drive shaft 3, commutator 4, commutator transmission shaft 5 and steering gear 6 successively, and resulting belt motor car wheel rotates or keeps straight-line travelling.
In automobile steering system, parts running clearance is the important factor in order affecting the driving of driver's subjectivity, if turn to parts running clearance to cross conference cause in steering procedure the sensation having looseness, brings a kind of uneasy nervous sensation to driver.If things go on like this can cause driving fatigue, easily occur traffic hazard.The size of running clearance is generally weighed with angle.
The structure of typical steering column lower drive shaft 3 as shown in Figure 2.Steering column lower drive shaft 3 comprises the spline housing 31 being processed with female spline and the spline mandrel 32 being processed with male splines, crossed joint fork 33 is installed at the two ends of steering column lower drive shaft 3, one of them crossed joint fork is arranged on the end of spline housing 31, and another crossed joint fork 33 is arranged on the end of spline mandrel 32.In this article, using one end away from spline housing 31 and spline mandrel 32 of each crossing spline 33 as outer end.And the gap of steering column lower drive shaft produces in A, B, C tri-positions, A position is the joint spider installation site of the crossed joint fork 33 in left side, B position is the spline fitted position of spline housing 31 and spline mandrel 32, and C position is the joint spider installation site of the crossed joint fork 33 on right side.The gap of A, B, C tri-positions and constitute total body space of steering column lower drive shaft 3.Three position running clearances separately, running clearances and all need to test, thus find the problem points of undesirable steering column lower drive shaft 3 and improve, this makes test very complicated.
Current steering column lower drive shaft running clearance method of testing is: fixing steering column lower drive shaft 3 one end, from the rotating torque of other end applying ± 1Nm.Testing requirements: the windup-degree of steering column lower drive shaft 3 should be less than 10 '.This method of testing only to the running clearance of A, B, C tri-positions and can be tested, and accurately cannot find problem points.
Because steering parts running clearance requires all within 10 ', directly cannot be measured by measurement of angle, need to carry out indirect inspection by other means.In the Chinese invention patent of patent No. CN200810207211, title " constant velocity universal joint drive spindle assembly clearance test stand ", angular transducer is adopted to carry out running clearance (being called circumferential clearance in that patent) test, but the windup-degree due to required measurement reaches a point rank, the degree of accuracy of required angle sensor is very high, and this will certainly improve testing cost.
Summary of the invention
The object of this invention is to provide a kind of worktable and method of testing of mechanically carrying out the test of steering column lower drive shaft running clearance, thus reduce testing cost.
For achieving the above object, The embodiment provides following technical scheme:
A kind of steering column lower drive shaft running clearance test table, comprising:
Base plate, described base plate is provided with bracing frame, clamping support, secondary clamping support, displacement measuring device;
Reference test bar, described reference test bar comprises cross bar and is connected to the rotating shaft of center of described cross bar, described cross bar and described rotating shaft form T-shaped structure, the end positions of described cross bar is all provided with hook, described rotating shaft is rotatably supported on support frame as described above, and one end of described rotating shaft is installed with chuck;
Weight.
Preferably, institute's displacement measurement device is dial gauge or clock gauge.
Preferably, described clamping support is relatively provided with a pair adjusting handle, adjusting handle described in each drive a fixture block towards another adjusting handle near or away from.
Preferably, described chuck is provided with adjusting handle, described adjusting handle drives fixture block to move in described chuck.
Preferably, described base plate has chute, support frame as described above, described clamping support, described secondary clamping support and institute's displacement measurement device are all slidably mounted on described base plate.
A kind of steering column lower drive shaft running clearance method of testing, comprising:
A, steering column lower drive shaft is arranged on steering column lower drive shaft running clearance test table as above, make described clamping support clamp the spline housing of described steering column lower drive shaft, described chuck clamps the crossed joint fork outer end of described steering column lower drive shaft;
B, described weight is hung on the hook of described cross bar one end;
C, make the gauge head of institute's displacement measurement device contact described cross bar away from described center position, the reading S1 of record institute displacement measurement device;
D, described weight is hung on the hook of the described cross bar other end, the reading S2 of record institute displacement measurement device;
The difference of e, calculating reading S1 and S2, utilizes triangle relation to converse clearance angle.
Preferably, above-mentioned steering column lower drive shaft running clearance method of testing also comprises: f, by described clamping support from the spline housing of described steering column lower drive shaft unclamp then clamping described steering column lower drive shaft spline mandrel, then repeat b, c, d, step e.
Preferably, above-mentioned steering column lower drive shaft running clearance method of testing also comprises: g, unclamped by described clamping support, make described secondary clamping support clamp the outer end of another crossed joint fork of described steering column lower drive shaft, then repeat b, c, d, step e.
Preferably, described steering column lower drive shaft, described rotating shaft are coaxially arranged.
Embodiments of the invention utilize mechanical measurement mechanism and method, the running clearance of steering column lower drive shaft is gone out in conjunction with trigonometric function indirect calculation, and measuring accuracy can rely on and increases the length of reference test bar or the position of moving displacement measurement mechanism and improve, with low cost, applicability is stronger.
Further, clamping support adopts relative adjusting handle, coaxial with rotating shaft after the clamping of steering column lower drive shaft can be ensured, thus ensure the measuring accuracy after weight applying moment of torsion.
Further, bracing frame, clamping support, secondary clamping support and displacement measuring device and base plate adopt the mode be slidably matched, can either adjust for the steering column lower drive shaft of different length, improve the versatility of test table, when testing, clamping respectively to spline housing, spline mandrel can be realized by the position changing clamping support again, thus realize with a set of test table the gap of A, B, C tri-positions measure respectively and gap and measure.
And the method relied in the present embodiment, can measure respectively the running clearance of two of steering column lower drive shaft running clearance, spline housing and spline mandrel that joint fork is respective, and measure running clearance and, thus find the problem points of undesirable steering column lower drive shaft more exactly.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of typical automobile steering system;
Fig. 2 is a kind of stereographic map of typical steering column lower drive shaft;
Fig. 3 is the stereographic map of the steering column lower drive shaft running clearance test table of embodiments of the invention;
Fig. 4 is the stereographic map of the clamping support of embodiments of the invention;
Fig. 5 is the stereographic map of the secondary clamping support of embodiments of the invention;
Fig. 6 is the stereographic map of the reference test bar of embodiments of the invention;
Fig. 7 is the reference test bar of embodiments of the invention and the connection diagram of bracing frame;
Fig. 8 is the left side view of the steering column lower drive shaft running clearance test table of embodiments of the invention;
Fig. 9 is the operating diagram of the steering column lower drive shaft running clearance test table of embodiments of the invention;
Figure 10 is the work partial enlarged drawing of the steering column lower drive shaft running clearance test table of embodiments of the invention;
Figure 11 is the schematic diagram calculation of the steering column lower drive shaft running clearance method of testing of embodiments of the invention.
Description of symbols in figure: 1, bearing circle, 2, steering column, 3, steering column lower drive shaft, 31, spline housing, 32, spline mandrel, 33, crossed joint is pitched, 331, outer end, 4, commutator, 5, commutator transmission shaft, 6, steering gear, 7, base plate, 71, chute, 8, bracing frame, 9, clamping support, 91, the first side wall, 92, second sidewall, 93, first adjusting handle, 94, second adjusting handle, 95, first fixture block, 96, second fixture block, 10, secondary clamping support, 101, 3rd sidewall, 102, 4th sidewall, 103, 3rd adjusting handle, 104, 3rd fixture block, 11, reference test bar, 111, cross bar, 112, rotating shaft, 113, chuck, 114, 4th adjusting handle, 115, hook, 12, displacement measuring device, 13, support, 14, weight, 15, bearing.
Embodiment
With reference to figure 3, in the steering column lower drive shaft running clearance test table of the present embodiment, base plate 7 is provided with bracing frame 8, clamping support 9, secondary clamping support 10, displacement measuring device 12.Reference test bar 11 is rotatably supported on bracing frame 8.Displacement measuring device 12 can adopt electronic type or mechanical dial gauge, clock gauge.
With reference to figure 4, the main body of clamping support 9 is gantry frame type structure, has the first side wall 91 and the second sidewall 92 and a roof.On the first side wall 91, second sidewall 92, first adjusting handle 93, second adjusting handle 94 is relatively installed, rotate the first adjusting handle 93 can drive the first fixture block 95 towards the second adjusting handle 94 near or away from, rotate the second adjusting handle 94 can drive the second fixture block 96 towards the first adjusting handle 93 near or away from, the first adjusting handle 93 and the second adjusting handle 94 cooperatively interact adjustment clamped position.
With reference to figure 5, secondary clamping support 10 has the 3rd sidewall 101 and the 4th sidewall the 102, three adjusting handle 103 is arranged on the 3rd sidewall 101, rotate the 3rd adjusting handle 103 can drive the 3rd fixture block 104 keep in mind the 4th sidewall 102 near or away from.
With reference to figure 5, reference test bar 11 comprises cross bar 111 and is connected to the rotating shaft 112 of center of cross bar 111, thus makes cross bar 111 and rotating shaft 112 form T-shaped structure.In this application, cross bar 111 refers in particular to homogeneous rod member, and its center is 1/2 place of its length and is its barycenter.One end of rotating shaft 112 is installed with chuck 113.Rotate the 4th adjusting handle 114 fixture block can be driven to move in chuck 113 thus make chuck 113 realize clamping.
With reference to figure 7, rotating shaft 112 is rotatably supported on bracing frame 8.In the present embodiment, first rotating shaft 112 through the bearing on bracing frame 8, is then installed chuck 113 in the mode such as spline fitted, welding and chuck 113 can be rotated along with rotating shaft 112.
With reference to figure 8, the end positions of cross bar 111 is all provided with hook 115.And the end positions that two hooks 115 are arranged on cross bar 111 represent that two hooks 15 are equidistant with center o, this center o is rotating shaft 112 and the link position of cross bar 111.Bearing 15 supporting revolving shaft 112 on bracing frame 8 also makes rotating shaft 112 rotate.When carrying out running clearance test to steering column lower drive shaft 3, need to use weight 14, need the support 13 adjusting bracing displacement measurement mechanism 12 to make the gauge head contact cross bar 111 of displacement measuring device 12, the contact point of gauge head and cross bar 111 and the range mark of center o are R simultaneously.Conveniently calculate, the contact point of gauge head and cross bar 111 can be selected in the installation site of hook 115.Base plate 7 has chute 71, bracing frame 8, clamping support 9, secondary clamping support 10 and displacement measuring device 12 are all slidably matched with the chute 71 on base plate 7 thus regulate installation site to adapt to the steering column lower drive shaft 3 of different size, are located after position adjustments completes by the device such as pin, bolt again.
With reference to figure 9, Figure 10, when testing the running clearance of steering column lower drive shaft 3, comprise the following steps:
A, steering column lower drive shaft 3 is arranged on steering column lower drive shaft running clearance test table, make clamping support 9 clamp the spline housing 31 of steering column lower drive shaft 3, chuck 113 clamps the outer end 331 of a crossed joint fork 33 of steering column lower drive shaft 3.By rotating the first adjusting handle 93 and the second adjusting handle 94, can ensure that steering column lower drive shaft 3 and rotating shaft 112 are coaxially arranged, thus ensure weight 14 apply moment of torsion after measuring accuracy.
B, hung over by weight 14 on the hook 115 of cross bar 111 one end, now weight 14 countershaft 112 applies torque, and under the drive of chuck 113, the outer end 331 of crossed joint fork 33 can rotate by opposing inner end.
C, make displacement measuring device 12 gauge head contact cross bar 111 away from o place, center, record the reading S1 of now displacement measuring device 12.For the ease of calculating, the gauge head of displacement measuring device 12 can the integral multiple of distance center position 0 place 100mm or 100mm.
D, weight 14 is taken off after hang on the hook 115 of cross bar 111 other end, weight 14 can drive crossed joint pitch 33 outer end 331 opposing inner end rotate in the opposite direction, record the reading S2 of now displacement measuring device 12.
Poor h=|S1-S2|, the h of e, calculating reading S1 and S2 are the shift motion of the gauge head of displacement measuring device 12.
With reference to Figure 11, because the angle of the steering gap of steering column lower drive shaft 3 is very little, generally reach a point rank, therefore after acquisition h numerical value, approximate right angle triangle as shown in figure 11 can be adopted to carry out trigonometric function conversion, and running clearance angle is: a=arctan (h/R).By adjusting the length of R, i.e. the probe location of the length of cross bar 111, or adjusted position measuring system 12, can adjust measuring accuracy.As R=100mm, stage accuracy can reach 0.34 ', and as R=200mm, precision can reach 0.17 '.
From upper description, because spline housing 31 is clamped, the running clearance of the A position that what therefore above-mentioned steps was measured is in Fig. 2, the running clearances of the crossed joint fork 33 of the left end namely in Fig. 2 itself.In order to measure further, carry out following steps:
F, the spline housing 31 of clamping support 9 from steering column lower drive shaft 3 to be unclamped, then the spline mandrel 32 of clamping steering column lower drive shaft 3.When clamping support 9 is for being fixed on base plate 7, need to change worktable, and in the present embodiment, because the mechanisms such as clamping support 9 are slidably matched with base plate 7, therefore unclamp the laggard line slip of clamping support 9 to reorientate, just can realize need not changing worktable to the clamping of spline mandrel 32.Then, repeat b, c, d, step e, now due to left end crossed joint fork 33 outer end 331 is clamped by chuck 113, spline mandrel 32 is clamped frame 9 and clamps, the running clearance therefore calculating acquisition be the running clearance of A, B position in Fig. 2 and.The running clearance that the running clearance obtained in step e is B position is deducted, the running clearance namely between spline housing 31 and spline mandrel 32 with the running clearance obtained in f step.
In order to measure further, carry out following steps:
G, clamping support 9 to be unclamped, no longer clamp steering column lower drive shaft 3, and make secondary clamping support 10 clamp the outer end of another crossed joint fork 33 of steering column lower drive shaft 3, namely, make secondary clamping support 10 clamp the outer end of the crossed joint fork 33 on the right side in Fig. 2, then repeat b, c, d, step e.In the process, due to the outer end of the crossed joint fork 33 in the left side of steering column lower drive shaft 3 clamped by chuck 113, the outer end of the crossed joint on right side fork 33 clamped by secondary clamping support 10, the running clearance therefore calculating acquisition in step g be the running clearance of A, B, C tri-positions in Fig. 2 and.The running clearance that the running clearance obtained in f step is C position is deducted, i.e. the running clearance of the crossed joint fork 33 on right side with the running clearance obtained in g step.
Known by foregoing description, the present embodiment utilizes mechanical measurement mechanism and method, the running clearance of steering column lower drive shaft 3 is gone out in conjunction with trigonometric function indirect calculation, and measuring accuracy can rely on and increases the length of reference test bar or the position of moving displacement measurement mechanism and improve, with low cost, applicability is stronger.And after the steering column lower drive shaft running clearance test table relying on the present embodiment implements the method in the present embodiment, the A in Fig. 2 can be obtained, B, the running clearance of C tri-positions and running clearance and, if A position running clearance is excessive, then illustrate and need the crossed joint fork 33 to left side to adjust, if A position is qualified but B position running clearance is excessive, then illustrate and need to adjust spline housing 31 and spline mandrel 32, if A, B position is all qualified and C position running clearance is excessive, then illustrate and need to adjust right side crossed joint fork 33, if A, B, the all qualified but gap of three of C tri-position running clearances and defective, explanation needs to carry out entirety to steering column lower drive shaft 3 and redesigns, thus the problem points of undesirable steering column lower drive shaft can be found more exactly.
Although the present invention is described in conjunction with above embodiment, but the present invention is not defined to above-described embodiment, and only by the restriction of claim, those of ordinary skill in the art can easily modify to it and change, but do not leave essential idea of the present invention and scope.
Claims (9)
1. a steering column lower drive shaft running clearance test table, is characterized in that, comprising:
Base plate, described base plate is provided with bracing frame, clamping support, secondary clamping support, displacement measuring device;
Reference test bar, described reference test bar comprises cross bar and is connected to the rotating shaft of center of described cross bar, described cross bar and described rotating shaft form T-shaped structure, the end positions of described cross bar is all provided with hook, described rotating shaft is rotatably supported on support frame as described above, and one end of described rotating shaft is installed with chuck;
Weight.
2. steering column lower drive shaft running clearance test table according to claim 1, it is characterized in that, institute's displacement measurement device is dial gauge or clock gauge.
3. steering column lower drive shaft running clearance test table according to claim 1, it is characterized in that, described clamping support is relatively provided with a pair adjusting handle, adjusting handle described in each drive a fixture block towards another adjusting handle near or away from.
4. steering column lower drive shaft running clearance test table according to claim 1, is characterized in that, described chuck is provided with adjusting handle, and described adjusting handle drives fixture block to move in described chuck.
5. steering column lower drive shaft running clearance test table according to claim 1, it is characterized in that, described base plate has chute, and support frame as described above, described clamping support, described secondary clamping support and institute's displacement measurement device are all slidably mounted on described base plate.
6. a steering column lower drive shaft running clearance method of testing, is characterized in that, comprising:
A, be arranged on steering column lower drive shaft as described in any one in claim 1 to 5 steering column lower drive shaft running clearance test table on, make described clamping support clamp the spline housing of described steering column lower drive shaft, described chuck clamps the crossed joint fork outer end of described steering column lower drive shaft;
B, described weight is hung on the hook of described cross bar one end;
C, make the gauge head of institute's displacement measurement device contact described cross bar away from described center position, the reading S1 of record institute displacement measurement device;
D, described weight is hung on the hook of the described cross bar other end, the reading S2 of record institute displacement measurement device;
The difference of e, calculating reading S1 and S2, utilizes triangle relation to converse clearance angle.
7. steering column lower drive shaft running clearance method of testing according to claim 6, is characterized in that, also comprise:
F, by described clamping support from the spline housing of described steering column lower drive shaft unclamp then clamping described steering column lower drive shaft spline mandrel, then repeat b, c, d, step e.
8. steering column lower drive shaft running clearance method of testing according to claim 7, is characterized in that, also comprise:
G, described clamping support to be unclamped, make described secondary clamping support clamp the outer end of another crossed joint fork of described steering column lower drive shaft, then repeat b, c, d, step e.
9. the steering column lower drive shaft running clearance method of testing according to any one of claim 6 to 8, is characterized in that, described steering column lower drive shaft, described rotating shaft are coaxially arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510737128.0A CN105387832A (en) | 2015-11-02 | 2015-11-02 | Steering tube lower transmission shaft running clearance test bench and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510737128.0A CN105387832A (en) | 2015-11-02 | 2015-11-02 | Steering tube lower transmission shaft running clearance test bench and test method |
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| CN105387832A true CN105387832A (en) | 2016-03-09 |
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| CN201510737128.0A Pending CN105387832A (en) | 2015-11-02 | 2015-11-02 | Steering tube lower transmission shaft running clearance test bench and test method |
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Cited By (9)
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| CN107014340A (en) * | 2017-05-02 | 2017-08-04 | 天津普天单向器有限公司 | A kind of multifunctional general driving shaft detection means |
| CN108469246A (en) * | 2018-06-12 | 2018-08-31 | 安徽江淮汽车集团股份有限公司 | A kind of simple steering column rotary gap survey tool |
| CN108871816A (en) * | 2018-08-09 | 2018-11-23 | 黄滢芝 | A kind of steering column torsional moment test platform |
| CN109282992A (en) * | 2018-11-26 | 2019-01-29 | 重庆长安汽车股份有限公司 | A kind of general fixing device of automobile steering pipe column test |
| CN109341492A (en) * | 2018-11-16 | 2019-02-15 | 安徽江淮汽车集团股份有限公司 | A kind of transmission assembly gap measuring apparatus |
| CN109870091A (en) * | 2017-12-05 | 2019-06-11 | 北京自动化控制设备研究所 | A kind of servo-operated mechanism bent output shaft clearance test method |
| CN113865539A (en) * | 2021-10-11 | 2021-12-31 | 李志伟 | Measuring method for mechanism deflection angle and revolute pair clearance disassembly-free measurement |
| CN113927517A (en) * | 2021-10-29 | 2022-01-14 | 广东电网有限责任公司广州供电局 | Assembly tool for rotating shaft and crank arm of isolating switch |
| CN114608417A (en) * | 2022-02-14 | 2022-06-10 | 安徽英克尔汽车零部件有限公司 | Device and method for detecting clearance of automobile transmission shaft assembly |
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| CN107014340B (en) * | 2017-05-02 | 2023-08-11 | 天津普天单向器有限公司 | Multifunctional universal transmission shaft detection device |
| CN107014340A (en) * | 2017-05-02 | 2017-08-04 | 天津普天单向器有限公司 | A kind of multifunctional general driving shaft detection means |
| CN109870091A (en) * | 2017-12-05 | 2019-06-11 | 北京自动化控制设备研究所 | A kind of servo-operated mechanism bent output shaft clearance test method |
| CN109870091B (en) * | 2017-12-05 | 2021-02-05 | 北京自动化控制设备研究所 | Method for testing bending clearance of output shaft of servo transmission mechanism |
| CN108469246A (en) * | 2018-06-12 | 2018-08-31 | 安徽江淮汽车集团股份有限公司 | A kind of simple steering column rotary gap survey tool |
| CN108469246B (en) * | 2018-06-12 | 2019-11-05 | 安徽江淮汽车集团股份有限公司 | A kind of simple steering column rotary gap measuring tool |
| CN108871816A (en) * | 2018-08-09 | 2018-11-23 | 黄滢芝 | A kind of steering column torsional moment test platform |
| CN109341492A (en) * | 2018-11-16 | 2019-02-15 | 安徽江淮汽车集团股份有限公司 | A kind of transmission assembly gap measuring apparatus |
| CN109282992A (en) * | 2018-11-26 | 2019-01-29 | 重庆长安汽车股份有限公司 | A kind of general fixing device of automobile steering pipe column test |
| CN113865539A (en) * | 2021-10-11 | 2021-12-31 | 李志伟 | Measuring method for mechanism deflection angle and revolute pair clearance disassembly-free measurement |
| CN113865539B (en) * | 2021-10-11 | 2024-03-19 | 李志伟 | Measurement method for disassembly-free measurement of mechanism deflection angle and revolute pair clearance |
| CN113927517A (en) * | 2021-10-29 | 2022-01-14 | 广东电网有限责任公司广州供电局 | Assembly tool for rotating shaft and crank arm of isolating switch |
| CN114608417A (en) * | 2022-02-14 | 2022-06-10 | 安徽英克尔汽车零部件有限公司 | Device and method for detecting clearance of automobile transmission shaft assembly |
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Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant before: Anhui Jianghuai Automotive Co., Ltd. |
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Application publication date: 20160309 |