CN100368706C - Automobile main decelerator assembly shim pre-selection method, pre-selecting machine measuring mechanism and control method thereof - Google Patents
Automobile main decelerator assembly shim pre-selection method, pre-selecting machine measuring mechanism and control method thereof Download PDFInfo
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- CN100368706C CN100368706C CNB2004100660239A CN200410066023A CN100368706C CN 100368706 C CN100368706 C CN 100368706C CN B2004100660239 A CNB2004100660239 A CN B2004100660239A CN 200410066023 A CN200410066023 A CN 200410066023A CN 100368706 C CN100368706 C CN 100368706C
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Abstract
The present invention relates to a preselecting method, a preselecting machine measuring mechanism and an operating and controlling method of a vehicle main speed reducer assembly shim. The present invention is characterized in that on a bearing base provided with an upper taper roller bearing, a lower taper roller bearing and a separating sleeve, the distance A1 between inner rings of the upper and the lower taper roller bearings and the actual height A2 of the separating sleeve are measured, and the thickness size of the shim required to be shimmed can be obtained by a formula Gt=A1-A2+F. The present invention can improve the assembly quality of the main speed reducer of a vehicle drive axle by the accurate preselection of the shim thickness.
Description
Technical field:
The present invention relates to the preselector of automobile drive axle main reducing gear assembling pad.
Background technique:
Automobile drive axle is the important big assembly of automobile, it is positioned at the end of automotive transmission, it is to increase by transmission shaft or the direct torque of being transmitted by speed changer that its basic training is used, it is distributed to the left and right driving wheel, and make the left and right driving wheel have the desired differential function of automobile running kinology; Simultaneously, bearing loading and ground give through suspension through wheel, vehicle frame or monocoque body on the fully loaded spring of automobile vertical force, longitudinal force, transverse force and moment thereof, and impulsive load.In general vehicle structure, ransaxle comprises parts such as the transmission device of main reducing gear, differential mechanism, driving wheel and axle housing.Wherein the effect of main reducing gear is that power with gearbox further slows down and changes its direction of transfer and passes to left and right wheel, and the effect of differential mechanism is to satisfy driving wheels inharmonic requirement on the kinology of travelling, the whole automobile drive axle performance of influence that their assembly quality is direct.
The restricted factor of the assembly quality of ransaxle main reducing gear is a lot, one of them important factor is, must control the support stiffness of drive bevel gear axle, and the steering resistance square of bearing support, i.e. the pretightening force of a pair of tapered roller bearing of drive bevel gear axle is supported in control.At present generally be to adopt the method for plus-minus adjustment pad between a pair of tapered roller bearing of supporting drive bevel gear axle to solve.Therefore, correctly selecting used spacer thickness, is the key that improves the main reducing gear assembly quality.
At present, the chip select method adopts the method for examination pad more, detects the pre-fastening moment size after the main gearbox assembly assembling is finished and whether meets the assembly technology requirement, does not meet then to take apart again to increase and decrease spacer thickness accordingly according to experience, ressembles again.Repeated disassembled and assembled like this, till satisfying matching requirements, its process is loaded down with trivial details, adjust that precision is low, rework rate is high, and when taking a lot of work, labor strength is big.
Summary of the invention:
The present invention is for avoiding above-mentioned existing in prior technology deficiency, a kind of automobile main reducer assembling shim pre-selection machine measuring mechanism is provided, by the accurate preliminary election of thickness to pad, improving the assembly quality of automobile drive axle main reducing gear.
The technological scheme that technical solution problem of the present invention is adopted is:
The pre-selection method of automobile main reducer assembling pad of the present invention is:
Tapered roller bearing, following tapered roller bearing on being equipped with, and on the bearing support of spacer are measured the distance A 1 between the upper and lower tapered roller bearing inner ring and the actual height A2 of spacer, and the spacer thickness that needs when then assembling is:
Gt＝A1-A2+F
F in the formula: the spacer thickness offset, F=F (LW, P, DP)
LW: the accuracy of thread of main teeth nut;
P: after the main tooth general assembly, the axial force that main teeth nut screw-down torque produces is after distributing between spacer and the bearing, and main pinion holds actual thrust load of bearing;
DP: the actual size deviation that is encased inside between pad and the preliminary election spacer thickness.
The structural feature of automobile main reducer assembling shim pre-selection machine measuring mechanism of the present invention is vertically to be provided with from bottom to top: following measuring system, measuring disk, spacer seat and last measuring system;
Described measuring system down has liftable jack-up slide-bar, and the top of jack-up slide-bar is the bearing pallet, is placed with the bearing support adjusting washer (disk) on described bearing pallet, and inductance displacement sensor is set down in the center through hole of bearing pallet;
Described measuring disk is made of the measuring disk spring that descends measuring disk, last measuring disk, support vertically to rise betwixt, fit in the inner ring upper-end surface of the get out of a predicament or an embarrassing situation end face and the tested tapered roller bearing down of following measuring disk, the top bar end face and the tested inner ring lower end surface applying of going up tapered roller bearing of last measuring disk; The contact of following inductance displacement sensor runs through the center through hole of measuring disk down, and the bottom end face of above measuring disk is a sensitive face;
Described spacer seat is placed on the inner ring of tested upward tapered roller bearing, and tested spacer is sleeved on the spacer seat;
The described measuring system that goes up has liftable assistor seat, the assistor slide-bar that is slidingly matched is arranged in the assistor seat, the assistor spring that is arranged in assistor slide-bar inner chamber is pressed on the bottom end face of assistor slide-bar, last inductance displacement sensor is provided with vertically, its contact runs through the bottom end face of assistor slide-bar, and is sensitive face with the top end face of spacer seat.
The characteristics of pre-selecting machine measuring mechanism of the present invention also are on described in the measuring system, the below that is positioned at the assistor slide-bar is provided with the assistor base plate, between the bottom end face of described assistor base plate and assistor slide-bar, spherical ball is set, fits with the top end face of assistor base plate and tested spacer.
The control mode of the above-mentioned measuring mechanism of the present invention is:
A, be placed on down successively from bottom to top with calibrating block I, measuring disk, calibrating block II, spacer seat, calibrating block III on the bearing support adjusting washer (disk) of bearing pallet of measuring system, measuring system is demarcated, obtain calibration value; Described calibrating block I is the simulating piece of bearing support, following tapered roller bearing and last tapered roller bearing outer ring assembly, and described calibrating block II is the inner ring simulating piece of last tapered roller bearing; Described calibrating block III is the spacer simulating piece;
B, each member in the measured workpiece bearing support assembly is assembled with measuring system successively, records the difference between measured workpiece and the calibration value, again with the size of simulating piece relatively, can obtain the actual numerical value A1 and the A2 of measured workpiece;
C, by formula Gt=A1-A2+F can obtain the spacer thickness size that need be encased inside.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, pre-selection method advanced person of the present invention, reliable, good stability.
2, the pre-machine of the present invention selects that measuring mechanism is simple and reasonable, multiplicity is high, error is less than 0.005mm, has the flexible assembly function.
3, preliminary election machine of the present invention is controlled and is handled fast, directly uses choosing pad efficient height on assembling line.
4, because the measurement error of inductive displacement transducer in its range has bigger nonlinearity, measuring mechanism control mode of the present invention can increase substantially its measuring accuracy effectively by the reasonable use to inductive displacement transducer.
Description of drawings:
Fig. 1 (a) measures the position schematic representation for the tested spacer of the present invention.
Fig. 1 (b) is a tested shaft bearing measurement in a closed series of the present invention position schematic representation.
Fig. 1 (c) is tested spacer of the present invention and bearing support composite structure schematic representation.
Fig. 2 is a measuring mechanism structural representation of the present invention.
Fig. 3 is measuring system structural representation on the measuring mechanism of the present invention.
Fig. 4 is a measuring mechanism spacer stand structure schematic representation of the present invention.
Fig. 5 is a measuring mechanism measuring disk structural representation of the present invention.
Fig. 6 is measuring system structural representation under the measuring mechanism of the present invention.
Fig. 7 is a calibrating block III structural representation of the present invention.
Fig. 8 is a calibrating block II structural representation of the present invention.
Fig. 9 is a calibrating block I structural representation of the present invention.
Figure 10 is a calibration measurements schematic representation of the present invention.
Number in the figure: 1 jack-up slide-bar, 2 bearing pallets, 3 bearing pallet lower covers, 4 lower sensor retainer springs, 5 lower sensor retainers, 6 bearing support adjusting washer (disk)s, 7 times inductance displacement sensors, 8 times measuring disk, 9 measuring disk springs, measuring disk on 10,11 measuring disk handles, 12 spacer seats, 13 assistor seats, 14 assistor base plates, 15 spherical ball, 16 assistor slide-bars, 17 assistor springs, inductance displacement sensor retainer on 18,19 assistor loam cakes, inductance displacement sensor on 20,21 extension bars, 22 spacers, tapered roller bearing on 23,24 bearing supports, 25 times tapered roller bearings, 26 calibrating block I, 27 calibrating block II, 28 calibrating block III.
Embodiment:
About the automobile drive axle main reducing gear being assembled the preliminary election of pad:
Referring to Fig. 1 (a), Fig. 1 (b), Fig. 1 (c), on being equipped with tapered roller bearing 23, down on the bearing support 24 of tapered roller bearing 25 and spacer 22, measure the distance A 1 between the inner ring of upper and lower tapered roller bearing and the actual height A2 of spacer 22, then assemble spacer thickness and be:
Gt＝A1-A2+F
F is the spacer thickness offset in the formula,
F＝F(LW，P，DP)
LW: the accuracy of thread of main teeth nut;
P: after the main tooth general assembly, the axial force that main teeth nut produces is after distributing between spacer and the bearing, and main pinion holds actual thrust load of bearing;
DP: the actual size deviation that is encased inside between pad and the preliminary election spacer thickness.
About pre-selecting machine measuring mechanism:
Referring to Fig. 2, what the measuring mechanism in the present embodiment vertically was provided with from bottom to top has: following measuring system, measuring disk, spacer seat and last measuring system.
Referring to Fig. 2, Fig. 6, following measuring system has liftable jack-up slide-bar 1, and the top of jack-up slide-bar 1 is a bearing pallet 2, and inductance displacement sensor 7 is set down in the center through hole of bearing pallet 2.Shown in the figure, for adapting to the requirement of different product, at bearing pallet 2 upper ends bearing support Adjusting rings 6.
Jack-up cylinder supports below jack-up slide-bar 1, to descend measuring system to rise during measurement, bearing pallet 2 is fixed by bolts to the top of jack-up slide-bar 1, bearing pallet lower cover 3 usefulness bolts wherein are connected the lower end of bearing pallet 2, be used to support lower sensor and keep spring 4, keep inductance displacement sensor retainer 5 under spring 4 jack-up by lower sensor, and by inductance displacement sensors 7 under inductance displacement sensor retainer 5 is fixed down.
Referring to Fig. 2, Fig. 5, measuring disk is by descending measuring disk 8, go up measuring disk 10 and support the measuring disk spring 9 that rises betwixt vertically to constitute, the inner ring upper-end surface of the get out of a predicament or an embarrassing situation end face and the following tapered roller bearing 25 of following measuring disk 8 fits, and the inner ring lower end surface of the top bar end face and the last tapered roller bearing 23 of last measuring disk 10 fits; The contact of following inductance displacement sensor 7 runs through the center through hole of measuring disk 8 down, and touches the bottom end face of measuring disk 10, and the bottom end face that following inductance displacement sensor 7 is above measuring disk 10 is a sensitive face.
For the ease of operation, last measuring disk 10 is provided with measuring disk handle 11, and measuring disk spring 9 will descend measuring disk 8 and last measuring disk 10 to strut, and its upper and lower surface is coincide with the end face of tested tapered roller bearing inner ring up and down all the time paste mutually.
Referring to Fig. 2, Fig. 4, spacer seat 12 is used to be placed on the tested inner ring of going up tapered roller bearing 23, and tested spacer 22 is sleeved on the spacer seat 12.
Referring to Fig. 2, Fig. 3, last measuring system has liftable assistor seat 13, the assistor slide-bar 16 that is slidingly matched is arranged in the assistor seat 13, the assistor spring 17 that is arranged in assistor slide-bar 16 inner chambers is pressed on the bottom end face of assistor slide-bar 16, last inductance displacement sensor 20 is provided with vertically, its contact runs through assistor slide-bar bottom end face, and touches the top end face of spacer seat 12, and last inductance displacement sensor 20 is that the top end face with spacer seat 12 is a sensor.
Fig. 3 illustrates, in concrete the enforcement, in last measuring system, the below that is positioned at assistor slide-bar 16 is provided with assistor base plate 14, between the bottom end face of assistor base plate 14 and assistor slide-bar 16, spherical ball 15 is set, fits with assistor base plate 14 and tested spacer end face.
About measuring control mode:
Referring to Fig. 7, Fig. 8, Fig. 9 and Figure 10, the concrete operating steps of measurement is as follows:
A, be placed on down successively from bottom to top with calibrating block I 26, measuring disk, calibrating block II 27, spacer seat 12, calibrating block III 28 on the bearing support adjusting washer (disk) 6 of bearing pallet 2 of measuring system, measuring system is demarcated, obtain calibration value; Described calibrating block I is the simulating piece of bearing support, following tapered roller bearing and last tapered roller bearing outer ring assembly, and described calibrating block II is the inner ring simulating piece of last tapered roller bearing; Described calibrating block III is the spacer simulating piece;
B, each member in the measured workpiece bearing support assembly is assembled with measuring system successively, records the difference between measured workpiece and the calibration value, again with the size of simulating piece relatively, can obtain the actual numerical value A1 and the A2 of measured workpiece;
Each member in the measured workpiece bearing support assembly and the concrete assembly process between the measuring system are:
With inner ring, the lower bearing tapered roller retainer of following tapered roller bearing 25, be pressed with the bearing support of upper and lower tapered roller bearing outer ring, and upper bearing (metal) tapered roller retainer is placed on the bearing support adjusting washer (disk) 6 successively; Subsequently, placing measuring disk, last tapered roller bearing inner ring, spacer seat and spacer successively gets final product.
C, by formula Gt=A1-A2+F can obtain the spacer thickness size that need be encased inside.
Claims (2)
1. automobile main reducer assembling shim pre-selection machine measuring mechanism is characterized in that vertically being provided with from bottom to top: following measuring system, measuring disk, spacer seat and last measuring system;
Described measuring system down has liftable jack-up slide-bar (1), the top of jack-up slide-bar (1) is bearing pallet (2), on described bearing pallet (2), be placed with bearing support adjusting washer (disk) (6), inductance displacement sensor (7) is set down in the center through hole of bearing pallet (2);
Described measuring disk is by descending measuring disk (8), go up measuring disk (10), supportting measuring disk spring (9) formation that rises betwixt vertically, fit in the inner ring upper-end surface of the get out of a predicament or an embarrassing situation end face and the tested tapered roller bearing (25) down of following measuring disk (8), the top bar end face and the tested inner ring lower end surface applying of going up tapered roller bearing (23) of last measuring disk (10); The contact of following inductance displacement sensor (7) runs through the center through hole of measuring disk (8) down, and the bottom end face of above measuring disk (10) is a sensitive face;
Described spacer seat (12) is placed on the inner ring of tested upward tapered roller bearing, and tested spacer (22) is sleeved on the spacer seat (12);
The described measuring system that goes up has liftable assistor seat (13), the assistor slide-bar (16) that is slidingly matched is arranged in the assistor seat (13), the assistor spring (17) that is arranged in assistor slide-bar (16) inner chamber is pressed on the bottom end face of assistor slide-bar (16), last inductance displacement sensor (20) is provided with vertically, its contact runs through the bottom end face of assistor slide-bar (16), and is sensitive face with the top end face of spacer seat (12).
2. according to the described automobile main reducer assembling of claim 1 shim pre-selection machine measuring mechanism, it is characterized in that the below that is positioned at assistor slide-bar (16) is provided with assistor base plate (14), between the bottom end face of described assistor base plate (14) and assistor slide-bar (16), spherical ball (15) is set, fits with the top end face of assistor base plate (14) with tested spacer (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100660239A CN100368706C (en) | 2004-12-09 | 2004-12-09 | Automobile main decelerator assembly shim pre-selection method, pre-selecting machine measuring mechanism and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100660239A CN100368706C (en) | 2004-12-09 | 2004-12-09 | Automobile main decelerator assembly shim pre-selection method, pre-selecting machine measuring mechanism and control method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN1632350A CN1632350A (en) | 2005-06-29 |
| CN100368706C true CN100368706C (en) | 2008-02-13 |
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| CNB2004100660239A Expired - Fee Related CN100368706C (en) | 2004-12-09 | 2004-12-09 | Automobile main decelerator assembly shim pre-selection method, pre-selecting machine measuring mechanism and control method thereof |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393185B (en) * | 2011-12-09 | 2014-02-05 | 南昌航空大学 | Automatic wrong pad detection device of metal sealing gasket |
| CN102564379B (en) * | 2011-12-30 | 2014-04-09 | 北京泰诚信测控技术股份有限公司 | Method and device for measuring and selecting gasket of taper bearing |
| CN102798900A (en) * | 2012-07-23 | 2012-11-28 | 吴江市金澜机械制造有限公司 | Gasket detection device |
| CN105606050B (en) * | 2015-09-28 | 2019-05-21 | 北京泰诚信测控技术股份有限公司 | A kind of transmission bearing gasket survey screening device |
| CN106595545B (en) * | 2016-12-22 | 2019-05-14 | 长沙锐博特科技有限公司 | Flat shim and circlip detection device for the production of automobile micromotor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5070621A (en) * | 1991-02-25 | 1991-12-10 | Federal-Mogul Corporation | Apparatus for measuring wheel end play |
| US5224377A (en) * | 1992-08-12 | 1993-07-06 | Gei Systems, Inc. | Rigid test table for gear sets |
| CN2763792Y (en) * | 2004-12-09 | 2006-03-08 | 合肥工业大学 | Measuring mechanism of pre-selection unit for assembling washer of main speed reducer of car |
-
2004
- 2004-12-09 CN CNB2004100660239A patent/CN100368706C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5070621A (en) * | 1991-02-25 | 1991-12-10 | Federal-Mogul Corporation | Apparatus for measuring wheel end play |
| US5224377A (en) * | 1992-08-12 | 1993-07-06 | Gei Systems, Inc. | Rigid test table for gear sets |
| CN2763792Y (en) * | 2004-12-09 | 2006-03-08 | 合肥工业大学 | Measuring mechanism of pre-selection unit for assembling washer of main speed reducer of car |
Non-Patent Citations (2)
| Title |
|---|
| 汽车后桥主减速器壳体垫片预选机的研制. 何元祥，林巨广，任永强.合肥工业大学学报，第25卷第3期. 2002 * |
| 汽车后桥主齿轮轴总成隔套垫片预选机的研制. 何元祥.合肥工业大学学报，第24卷第6期. 2001 * |
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| CN1632350A (en) | 2005-06-29 |
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Granted publication date: 20080213 Termination date: 20101209 |