CN102004034A - Device and method for measuring rigidity of wheel hub bearing - Google Patents
Device and method for measuring rigidity of wheel hub bearing Download PDFInfo
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- CN102004034A CN102004034A CN 201010127532 CN201010127532A CN102004034A CN 102004034 A CN102004034 A CN 102004034A CN 201010127532 CN201010127532 CN 201010127532 CN 201010127532 A CN201010127532 A CN 201010127532A CN 102004034 A CN102004034 A CN 102004034A
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- bearing
- hub bearing
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Abstract
The invention relates to a bearing measuring technology, in particular to a device and method for professionally measuring the rigidity of an automotive wheel hub bearing. The method is characterized by comprising the following steps: a pressing part and a supporting part which are parallel to each other are designed; the inner ring of one wheel hub bearing is fixed on the supporting parts along the vertical direction of the pressing parts and the supporting parts; the height for accommodating the wheel hub bearing and an enough space for generating deformation after pressing are formed between the pressing parts and the supporting parts; two measuring points are respectively arranged on the pressing parts and the supporting parts in the maximum wheel hub circumference of the wheel hub bearing; a pressing point is arranged at a position which has the distance of the wheel radius away from the center of the wheel hub bearing; data variables after pressing are obtained from the four measuring points; the deformation angle of the wheel hub bearing under a stress state is calculated; and finally the rigidity of the wheel hub bearing is obtained.
Description
Technical field
The present invention relates to the bearing measuring technology, especially relate to a kind of stiffness means and method of professional measured automobiles hub bearing.
Background technology
In manufacturing parts detect, the accuracy requirement of pick-up unit is high, when the rigidity of parts is measured, the rigidity of device own and computing method are very big to the measurement data influence, the rigidity that possibly can't correctly reflect unit under test sometimes, in the bearing rigidity context of detection, mainly be how only to the measurement of bearing rigidity, the influence of being measured system rigidity less as far as possible.
Summary of the invention
The objective of the invention is provides a kind of reasonable in design in order to solve the problem that bearing rigidity is measured, and it is convenient to measure, and the precision height calculates simply the measurement mechanism of professional measured automobiles rigidity of hub bearings.
Above-mentioned technical matters of the present invention is mainly solved by following technical proposals: this rigidity of hub bearings measurement mechanism and method, comprise base, pressing plate, reach the hub of forming by wheel hub, hub bearing, fastening pivot pin, it is characterized in that the wheel hub in the described hub is fixed on the base, the ring flange of hub bearing is fixed in the pressing plate by set bolt, is provided with on the pressing plate at a radius of wheel place of distance hub bearing and is subjected to pressing steel balls.On the base of the maximum gauge position of hub bearing, pressing plate, respectively establish two measurement points, exert pressure on the pressing steel balls to being subjected to, calculate the rigidity of bearing by the change in location of measurement point.
As preferably, described pressing plate is provided with through hole in the hub bearing position, and the aperture of its through hole is greater than the big end external diameter of fastening pivot pin.The upper end of fastening pivot pin is provided with the device for tightening tool such as the spanner location and the degree of tightness application of force, and as the profile of hexagonal nut, or interior hexagonal blind hole, fastening pivot pin passes hole on the pressing plate to the location of hub bearing on flange.
As preferably, described wheel hub is provided with two place's test desks, and test desk is in the maximum circumference of hub range of size of hub bearing.Measurement point required for the present invention is established 2 points altogether everywhere above the wheel hub, there is displacement measurement point its position after being subjected to the pressing steel balls application of force, so test desk herein can not directly be close to base, should leave certain distance.The location of measurement point all is located within the hub bearing largest circumference everywhere, can avoid the influence of pressing plate and base self rigidity to measurement result like this.
As preferably, described base is provided with two place's test desks, and test desk is in the maximum circumference of hub range of size of hub bearing.A same claim of this version, test desk can be provided with a support and be fixed on the base, and measurement point wherein and base will have certain distance, provide the back measurement mechanism of exerting pressure to produce the needed displacement of angle θ.
As preferably, described a kind of rigidity of hub bearings measuring method, it is characterized in that designing one group of pressing piece that is parallel to each other and supporting member, with pressing piece and supporting member vertical direction one hub bearing is fixed on pressing piece and the supporting member, has the height that holds hub bearing between pressing piece and the supporting member and enough spaces of the back generation deflection of exerting pressure, on pressing piece within the maximum circumference of hub of hub bearing and supporting member, establish two measurement points respectively, a radius of wheel distance is established a compression point apart from the hub bearing center, from then on compression point on-load pressure F
t, measure the distance between two measurement points on the pressing piece, obtain the back gained data variable of exerting pressure from the four measuring point, calculate the deformation angle under the hub bearing stress, by calculating formula: bearing rigidity=F
t* R/ θ (Nm/ °) tries to achieve the bearing rigidity of hub bearing, and R is that bearing center is to the load(ing) point distance.
As preferably, described compression point is with adopting steel ball to load.The employing steel ball loads, and guarantees to load radius all the time and does not change with the variation of system.
Therefore, the present invention is a kind of reasonable in design, and is easy to operate, and its measurement result can fully reflect the measurement mechanism and the method for rigidity of hub bearings.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Among the figure: 1. base, 2. wheel hub, 3. hub bearing, 4. pressing plate, 5. be subjected to pressing steel balls, 6. fastening pivot pin, 7. set bolt, 8, test desk.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, technical scheme of the present invention is described in further detail.
Referring to Fig. 1, present embodiment is established the hub that will be made up of wheel hub 2, hub bearing 3, fastening pivot pin 6 and is fixed on the base 1, the outer hub of hub bearing 3 is fixed on the pressing plate 4 by 4 set bolts 7, on the pressing plate 4 of 3 one radius of wheel positions of distance hub bearing, establish a steel ball locating slot, place in the steel ball locating slot and be subjected to pressing steel balls 5, by changing base plate and pressing plate, can satisfy the measurement requirement of different model hub bearing.
Establish two place's test desks 8 on the flange plate-like base of hub wheel hub 2 bottoms, test desk 8 is arranged on the wheel hub 2 at distance between bearing 3 maximum outside diameter positions.
As shown in the figure, establish A, B, C, D four measuring point, the four measuring point is located on the line that is subjected to pressing steel balls 5 and hub bearing 3 centers, promptly in the position, point of crossing of hub bearing 3 maximum wheel hub external diameters and this line.During measurement, need to measure the change in location of four measuring point, calculate the angle theta of the top of the bottom of pressing plate 4 and base 1 again.
Try to achieve the bearing rigidity of hub bearing 3 according to calculating formula:
Bearing rigidity=F
t* R/ θ (Nm/ °)
In the formula: F
tFor being applied to the pressure that is subjected on the pressing steel balls 5, the distance of the R load(ing) point that is bearing center to the pressing plate 4, θ is the angle of the top of its following and base 1 behind pressing plate 4 pressurizeds, this angle theta is to be determined by the changing value of four meters.
The acquisition at the data variation of four measuring point and θ angle all can be by being provided with optoelectronic device, and be connected with computing machine and obtain, to realize robotization.
Claims (6)
1. rigidity of hub bearings measurement mechanism and method, comprise base (1), pressing plate (4), reach the hub of forming by wheel hub (2), hub bearing (3), fastening pivot pin (6), it is characterized in that the wheel hub (2) in the described hub is fixed on the base (1), the ring flange of hub bearing (3) is fixed in the pressing plate (4) by set bolt (7), is provided with on the pressing plate (4) at (3) radius of wheel places of distance hub bearing and is subjected to pressing steel balls (5).
2. rigidity of hub bearings measurement mechanism according to claim 1 and method is characterized in that described pressing plate (4) is provided with through hole in hub bearing (3) position, and the aperture of its through hole is held external diameter greatly greater than fastening pivot pin (6).
3. rigidity of hub bearings measurement mechanism according to claim 1 and method is characterized in that described wheel hub (2) is provided with two place's test desks (8), and test desk (8) is in the maximum circumference of hub range of size of hub bearing.
4. rigidity of hub bearings measurement mechanism according to claim 1 and method is characterized in that described base (1) is provided with two place's test desks (8), and test desk (8) is in the maximum circumference of hub range of size of hub bearing.
5. rigidity of hub bearings measuring method, it is characterized in that designing one group of pressing piece that is parallel to each other and supporting member, being fixed on the supporting member with pressing piece and supporting member vertical direction a hub bearing, has the height that holds hub bearing between pressing piece and the supporting member and enough spaces of the back generation deflection of exerting pressure, on pressing piece within the maximum circumference of hub of hub bearing and supporting member, establish two measurement points respectively, a radius of wheel distance is established a compression point apart from the hub bearing center, from then on compression point on-load pressure F
t, measure the distance between two measurement points on the pressing piece, obtain the back gained data variable of exerting pressure from the four measuring point, calculate the deformation angle under the hub bearing stress, by calculating formula: bearing rigidity=F
t* R/ θ (Nm/ °) tries to achieve the bearing rigidity of hub bearing, and R is that bearing center is to the load(ing) point distance.
6. a kind of rigidity of hub bearings measuring method according to claim 5 is characterized in that described compression point is with adopting steel ball to load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010127532 CN102004034A (en) | 2009-08-28 | 2010-03-19 | Device and method for measuring rigidity of wheel hub bearing |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910306254 | 2009-08-28 | ||
| CN200910306254.5 | 2009-08-28 | ||
| CN 201010127532 CN102004034A (en) | 2009-08-28 | 2010-03-19 | Device and method for measuring rigidity of wheel hub bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102004034A true CN102004034A (en) | 2011-04-06 |
Family
ID=43811584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010127532 Withdrawn CN102004034A (en) | 2009-08-28 | 2010-03-19 | Device and method for measuring rigidity of wheel hub bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102004034A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092583A (en) * | 2016-08-12 | 2016-11-09 | 浙江万向精工有限公司 | Hub bearing unit torque rigidity test system and method |
-
2010
- 2010-03-19 CN CN 201010127532 patent/CN102004034A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092583A (en) * | 2016-08-12 | 2016-11-09 | 浙江万向精工有限公司 | Hub bearing unit torque rigidity test system and method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Open date: 20110406 |