CN102564379B - Method and device for measuring and selecting gasket of taper bearing - Google Patents
Method and device for measuring and selecting gasket of taper bearing Download PDFInfo
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- CN102564379B CN102564379B CN201110458027.1A CN201110458027A CN102564379B CN 102564379 B CN102564379 B CN 102564379B CN 201110458027 A CN201110458027 A CN 201110458027A CN 102564379 B CN102564379 B CN 102564379B
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Abstract
The invention relates to the field of mechanical assembly, disclosing to a method for measuring and selecting a gasket of a taper bearing. The method comprises the following steps of: 1, assembling all workpieces except the gasket to be measured according to the normal work state of a taper bearing drive system; 2, simulating the pressure and the speed during the normal work of the taper bearing drive system, and measuring the overall dimension under actual working conditions; and 3, comparing the dimension measured in the step 2 with the dimensions of the bearing inner rings of an upper taper bearing and a lower taper bearing and spacer bushes in static states, wherein the difference value is the thickness of the gasket to be measured. According to the method, the actual operation conditions of the workpieces can be completely simulated for measuring, the measurement accuracy is high, and the real value of the thickness of the actually required gasket can be measured. Meanwhile, the invention also provides a gasket measuring device, which can ensure that the assembled gasket conforms to the actual needs of pretightening the bearings. The detection can be completed by means of the device, and the production efficiency is greatly improved.
Description
Technical field
The present invention relates to mechanical assembling field, particularly a kind of cone bearing pad measuring and selecting method and device.
Background technology
China is at automobile, engineering machinery, and agricultural machinery etc. are manufactured field in batches, have huge spread with external ratio, and main gap reason does not lie in the profile factor such as seat, but three large power parts: the inherent gap of engine, wheel box and vehicle bridge.In the power trains such as wheel box, vehicle bridge, there is the application of a large amount of cone bearings and angular contact bearing, and control axial pre tightening force, be crucial, control the bad problems such as bearing damage, oil sealing leakage of oil, gear noise that cause, make power train load-bearing capacity have a greatly reduced quality and reduction in serviceable life simultaneously, also cause made in China to rest in the level of low-quality in international impression.In fast development, in process technology, these those skilled in the art do a lot of work in the past few decades, be improved, but really all do not deal with problems, the poor bottleneck that becomes power train development of assembly quality, and axial pretightening becomes key problem.
How to survey and select the size of pad with the axial pre tightening force of cone bearing and angular contact bearing in assurance power train, thereby make bearing and gear drive in optimum Working, avoid occurring in transmission process oil sealing leakage of oil, beat the problems such as tooth, further increasing the load-bearing capacity of power train and increasing the service life is the bottleneck problem running in prior art.Become made in China into China's creation, eager need to develop axial pretightening digitizing mounting technology, and this is the only way of current China's manufacturing industry.
Summary of the invention
(1) technical matters that will solve
The technical problem to be solved in the present invention is the measuring and selecting method that a kind of cone bearing kinematic train assembling pad need to be provided, and also needs to provide a kind of cone bearing pad to survey screening device simultaneously.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of cone bearing pad measuring and selecting method, comprise step:
S1: except tested pad, each workpiece is assembled according to cone bearing kinematic train normal operating conditions;
S2: pressure and rotating speed when simulation cone bearing kinematic train is normally worked, record the overall dimensions under actual operating mode;
S3: inner ring length and the L2 size of measurement spacer, upper cone bearing and lower cone bearing under the size recording in described step S2 and its is static are compared, the thickness that difference is tested pad.
As technique scheme preferably, described step S1 is specially: upper cone bearing, housing, lower cone bearing are assemblied on main shaft successively, and the outer ring of described upper cone bearing and lower cone bearing need to be press-fit into place in advance.
As technique scheme preferably, described step S2 is specially: take the bottom surface of described lower cone bearing is reference field, simulation cone bearing kinematic train duty, the end face of upper cone bearing is applied to downward pressure, and rotating spindle, the upper surface of upper cone bearing is to the distance L 1 of described lower cone bearing bottom surface described in kinetic measurement.
As technique scheme preferably, described step S3 is specially: calculate the thickness of assembling pad, it is E1=L1-L2, wherein L2 be upper cone bearing, spacer and lower cone bearing length and.
As technique scheme preferably, described step S2 also comprises: take the bottom surface of described lower cone bearing is reference field, measures the differential mechanism mounting hole center of housing to the distance L 3 of described reference field.
As technique scheme preferably, described step S3 also comprises: calculate main tooth spacer thickness, it is E2=|L3-N|, the practical set distance that wherein N is main drive gear.
As technique scheme preferably, described device comprises: coarse positioning frock, seaming chuck, the first displacement transducer and rotating mechanism; Described coarse positioning frock matches with the bottom shape of described housing, for the coarse positioning to housing integral body; Described seaming chuck can move and predetermined pressure can be provided by vertical direction; Described rotating mechanism is used to described main shaft that desired speed is provided, and the reference field cooperation place of the below of described main shaft and the bottom surface of described lower cone bearing is stepped; Described the first displacement transducer is for measuring the position shift momentum of the end face of described upper cone bearing.
As technique scheme preferably, described device also comprises: second displacement sensor, described second displacement sensor is for measuring the position shift momentum at the differential mechanism mounting hole center of described housing.
As technique scheme preferably, described second displacement sensor is 2, is distributed in cornerwise orientation of the differential mechanism mounting hole central lower of described housing.
As technique scheme preferably, described the first displacement transducer is arranged on seaming chuck, on upper cone bearing end face or its lead surface.
(3) beneficial effect
A kind of cone bearing pad measuring and selecting method that technique scheme provides, comprises step: S1: except tested pad, each workpiece is assembled according to cone bearing kinematic train normal operating conditions; S2: pressure and rotating speed when simulation cone bearing kinematic train is normally worked, record the overall dimensions under actual operating mode; S3: the upper cone bearing under the size recording in described step S2 and its is static adds spacer size with the bearing inner race of lower cone bearing compares, the thickness that difference is tested pad.The practical operation situation that this kind of method simulated workpiece is completely measured, and measuring accuracy is high, can measure the actual value of the thickness of actual required pad, and the present invention simultaneously also provides gasket measuring device, guarantees to assemble pad and meets bearing pre-tightened actual needs.By device, complete detection, greatly improved production efficiency.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of cone bearing kinematic train;
Fig. 2 is the tested structural representation of the cone bearing kinematic train of the embodiment of the present invention;
Fig. 3 is upper cone bearing, the axle sleeve of the embodiment of the present invention, the structural representation of lower cone bearing;
Fig. 4 is the fixation measuring schematic diagram that the cone bearing pad of the embodiment of the present invention is surveyed screening device;
Fig. 5 is location, the side schematic diagram that the cone bearing pad of the embodiment of the present invention is surveyed screening device;
Fig. 6 is bottom surface the second sensor layout schematic diagram that the cone bearing pad of the embodiment of the present invention is surveyed screening device;
Wherein, 1: assembling pad; 2: spacer; 3: main tooth pad; 4: upper cone bearing; 5: lower cone bearing; 6: main drive gear; 7: reference field; 8: differential mechanism mounting hole center; 9: main shaft; 10: housing; 21: coarse positioning frock; 22: the first displacement transducers; 23: seaming chuck; 24: rotating mechanism; 25: second displacement sensor; 26: spring.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention.
In conjunction with shown in Fig. 1 to 3, it is the tested structural representation of the cone bearing kinematic train of the embodiment of the present invention; The cone bearing pad measuring and selecting method providing in the present embodiment, the method is kinetic measurement, pressure and rotating speed when simulation cone bearing kinematic train is normally worked, record the overall dimensions under actual operating mode, the upper cone bearing 4 under static with it and the bearing inner race of lower cone bearing 5 and the thickness that spacer 2 size comparison differences are required pad.It comprises step particularly: S1: except tested pad, each workpiece is assembled according to cone bearing kinematic train normal operating conditions; S2: pressure and rotating speed when simulation cone bearing kinematic train is normally worked, record the overall dimensions under actual operating mode; S3: the upper cone bearing 4 under the size recording in described step S2 and its is static is compared with bearing inner race and spacer 2 sizes of lower cone bearing 5, the thickness that difference is tested pad.The practical operation situation that this kind of method simulated workpiece is completely measured, measuring accuracy is high, can measure the actual value of the thickness of actual required assembling pad, and the present invention simultaneously also provides gasket measuring equipment, by equipment, complete detection, greatly improved production efficiency.
For the survey choosing of assembling pad 1, step S1 is specially: upper cone bearing 4, housing 10, lower cone bearing 5 are assemblied on main shaft 9 successively, and upper cone bearing 4 need to be press-fit into place in advance with the outer ring of lower cone bearing 5.Step S2 is specially: the bottom surface of following cone bearing 5 is reference field 7, simulation cone bearing kinematic train duty, the end face of upper cone bearing 4 is applied to downward pressure, and rotating spindle 9, in kinetic measurement, the upper surface of cone bearing 4 is to the distance L 1 of lower cone bearing 5 bottom surfaces.Step S3 is specially: calculate the thickness of assembling pad 1, it is E1=L1-L2, wherein L2 be upper cone bearing 4, spacer 2 and lower cone bearing 5 length and.
The demand when value of the assembling pad 1 being drawn by this method kinetic measurement meets this cone bearing kinematic train duty completely, the selection of assembling pad 1 in each cone bearing kinematic train be for its degree body customized, make its axial pre tightening force be controlled at optimal working point, guaranteed that bearing life is long, not easy oil leakage of oil sealing.
Survey choosing for main tooth pad 3 is that step S2 also comprises: the bottom surface of following cone bearing 5 is reference field 7, measures the differential mechanism mounting hole center 8 of housing 10 to the distance L 3 of reference field 7.Step S3 also comprises: calculate main tooth pad 3 thickness, it is E2=|L3-N|, and wherein N is the practical set distance of main drive gear 6.The mounting distance that dynamically the lower thickness of measuring main tooth pad 3 can ensure main drive gear 6 is in optimum, make main drive gear 6 when work in best drive state, be difficult for the mission life that produces noise and extend main drive gear 6.
As shown in Figure 4, the present embodiment also provides a kind of cone bearing pad of applying said method to survey screening device, and this device comprises: coarse positioning frock 21, seaming chuck 23, the first displacement transducer 22 and rotating mechanism 24.
Coarse positioning frock 21 matches with the bottom shape of housing 10, for the coarse positioning to housing 10 integral body; By coarse positioning frock 21, make housing 10 coarse positionings of cone bearing kinematic train, coarse positioning work 21 has the boss corresponding with housing 10 arc grooves as shown in Figure 5, for the coarse positioning to housing 10 directions and position, and convenient operation person operation.
The first displacement transducer 22 is for measuring the position shift momentum of the end face of upper cone bearing 4.Take reference field 7 as benchmark, by the first displacement transducer 22, measure the end face position shift momentum of upper cone bearing 4.As shown in the figure, the first displacement transducer 22 directly can be arranged on seaming chuck 23, after seaming chuck 23 contacts with upper cone bearing 4 and exerts pressure, during the uniform rotation of cone bearing kinematic train, the first displacement transducer 22 is measured position shift momentum.The value recording compares with the value of demarcating in advance the overall dimensions that obtains cone bearing kinematic train under actual condition.This same first displacement transducer 22 also can be arranged at the lead surface (as shown in phantom in Figure 4) of cone bearing 4 end faces, because lead surface contacts with the end face of upper cone bearing 4, the value that the first displacement transducer 22 is measured is also the position shift momentum of the end face of upper cone bearing 4.
For measuring the thickness of assembling pad 3, this device also comprises: second displacement sensor 25, second displacement sensor 25 is for measuring the position shift momentum at the differential mechanism mounting hole center 8 of housing 10.
As shown in Figure 6, second displacement sensor 25 is 2, is distributed in cornerwise orientation of 8 belows, differential mechanism mounting hole center of housing 10.Can be by a datum plate being set below the differential mechanism mounting hole center 8 at housing 10, second displacement sensor 25 is arranged at respectively cornerwise direction, another cornerwise two ends arrange respectively spring 26, can improve the degree of accuracy of the differential mechanism mounting hole center 8 position shift momentums measurements of 25 pairs of housings 10 of sensor.The numerical value recording for two sensors 25, can draw by the method for averaging actual measured value, eliminates the error that an independent point measurement brings.
The present invention also provides a kind of method of operating that cone bearing pad is surveyed screening device of applying, and comprises the following steps:
S1, S3: demarcate, by upper cone bearing 4, housing 10, calibration element corresponding to lower cone bearing 5 sum L1, measurement mechanism is demarcated to zero point; Meanwhile, by standard, demarcate the differential mechanism mounting hole center of housing 10 to the distance L 3 of described reference field.
S2: load location, upper cone bearing 4, spacer 2, calibration element corresponding to lower cone bearing 5 sum L2 are demarcated to zero point to measurement mechanism;
By relative measurement method, guarantee that sensor accuracy affects and accomplishes minimum detection.
As can be seen from the above embodiments, the method that the embodiment of the present invention provides is kinetic measurement, pressure and rotating speed when simulation cone bearing kinematic train is normally worked, eliminate the oil clearance that cone bearing exists when rotating, record after the size under actual operating mode, then the size under static with it relatively draws the thickness of required pad.It comprises step: S1: except tested pad, each workpiece is assembled according to cone bearing kinematic train normal operating conditions; S2: pressure and rotating speed when simulation cone bearing kinematic train is normally worked, record the overall dimensions under actual operating mode; S3: the bearing inner race under the size recording in described step S2 and its is static adds spacer size compares, the thickness that difference is tested pad.The practical operation situation that this kind of method simulated workpiece is completely measured, and measuring accuracy is high, can measure the actual value of the thickness of actual required pad, and the present invention simultaneously also provides gasket measuring device, guarantees to assemble pad and meets bearing pre-tightened actual needs.By device, complete detection, greatly improved production efficiency; Complex work is become very simple simultaneously, operator's requirement is reduced greatly, homogeneity of product greatly improves; What is more important has really realized digitizing assembling, is conducive to production quality control and lifting.The present invention provides pad to survey the method for operating of screening device simultaneously.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and replacement, these improvement and replacement also should be considered as protection scope of the present invention.
Claims (8)
1. a cone bearing pad measuring and selecting method, is characterized in that, comprises step:
S1: except tested pad, each workpiece is assembled according to cone bearing kinematic train normal operating conditions;
Described step S1 is specially: upper cone bearing (4), housing (10), lower cone bearing (5) are assemblied in to main shaft (9) successively upper, described upper cone bearing (4) need to be press-fit into place in advance with lower cone bearing (5) outer ring;
S2: pressure and rotating speed when simulation cone bearing kinematic train is normally worked, record the overall dimensions under actual operating mode; Described step S2 is specially: take the bottom surface of described lower cone bearing (5) is reference field (7), simulation cone bearing kinematic train duty, end face to upper cone bearing (4) applies downward pressure, and rotating spindle (9), the upper surface of upper cone bearing (4) is to the distance L 1 of described lower cone bearing (5) bottom surface described in kinetic measurement;
S3: by the size recording in described step S2 with static under the bearing inner race of upper cone bearing (4), the bearing inner race of lower cone bearing (5), this three's of spacer (2) size sum compare, the thickness that difference is tested pad.
2. cone bearing pad measuring and selecting method as claimed in claim 1, is characterized in that, described step S3 is specially: length and the L2 of the inner ring of the inner ring of cone bearing in measurement (4), spacer (2) and lower cone bearing (5).
The thickness that calculates assembling pad (1), it is E1=L1-L2.
3. cone bearing pad measuring and selecting method as claimed in claim 1, it is characterized in that, described step S2 also comprises: take the bottom surface of described lower cone bearing (5) is reference field (7), measures the differential mechanism mounting hole center (8) of housing (10) to the distance L 3 of described reference field (7).
4. cone bearing pad measuring and selecting method as claimed in claim 3, is characterized in that, described step S3 also comprises: calculate main tooth pad (3) thickness, it is E2=│ L3-N │, and wherein N is the practical set distance of main drive gear (6).
5. application rights requires the cone bearing pad of method described in 1 to survey a screening device, it is characterized in that, described device comprises: coarse positioning frock (21), seaming chuck (23), the first displacement transducer (22) and rotating mechanism (24); Described coarse positioning frock (21) matches with the bottom shape of described housing (10), for the coarse positioning to housing (10) integral body; Described seaming chuck (23) can move and predetermined pressure can be provided by vertical direction; Described rotating mechanism (24) is used to described main shaft (9) that desired speed is provided, and reference field (7) cooperation place of the bottom surface of the below of described main shaft (9) and described lower cone bearing (5) is stepped; Described the first displacement transducer (22) is for measuring the position shift momentum of the end face of described upper cone bearing (4).
6. cone bearing pad as claimed in claim 5 is surveyed screening device, it is characterized in that, described device also comprises: second displacement sensor (25), described second displacement sensor (25) is for measuring the position shift momentum at the differential mechanism mounting hole center (8) of described housing (10)
7. cone bearing pad as claimed in claim 6 is surveyed screening device, it is characterized in that, described second displacement sensor (25) is 2, is distributed in cornerwise orientation of the below, differential mechanism mounting hole center (8) of described housing (10).
8. cone bearing pad as claimed in claim 6 is surveyed screening device, it is characterized in that, described the first displacement transducer (22) is arranged at that seaming chuck (23) is upper, upper cone bearing (4) end face, upper any one position of upper cone bearing (4) end face lead surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110458027.1A CN102564379B (en) | 2011-12-30 | 2011-12-30 | Method and device for measuring and selecting gasket of taper bearing |
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| CN201110458027.1A CN102564379B (en) | 2011-12-30 | 2011-12-30 | Method and device for measuring and selecting gasket of taper bearing |
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| CN102564379A CN102564379A (en) | 2012-07-11 |
| CN102564379B true CN102564379B (en) | 2014-04-09 |
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Address after: 101, 1st Floor, No. 2, Yard 16, Xinghai Third Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing, 100176 Patentee after: BEIJING TAICHENGXIN MEASUREMENT&CONTROL TECHNOLOGY CO.,LTD. Address before: 1 Zhanqian Road, Gonghua Street, Shahe Town, Changping District, Beijing 102206 Patentee before: BEIJING TAICHENGXIN MEASUREMENT&CONTROL TECHNOLOGY CO.,LTD. |