CN218066410U

CN218066410U - Automobile wheel hub bearing dynamic clearance measuring device

Info

Publication number: CN218066410U
Application number: CN202222437527.3U
Authority: CN
Inventors: 牛荣军; 马继业; 张慧; 马福庆; 董传福; 杜国峰; 张春玲
Original assignee: Shandong Halin Group Co ltd
Current assignee: Shandong Halin Group Co ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2022-12-16
Anticipated expiration: 2032-09-15

Abstract

The utility model discloses an automobile wheel hub bearing developments play measuring device, including lower location pedestal, go up the location pedestal, lower load ring, go up the load ring, it is first, second displacement sensor subassembly, first drive unit, second drive unit and third drive unit, down location pedestal and last location pedestal set up relatively and under the effect of first drive unit respectively with the upper and lower terminal surface butt of bearing inner race, the second drive unit can transmit rotary motion to down location pedestal and go up the location pedestal rotatory with the drive bearing inner race, lower load ring and last load ring set up relatively and can respectively with the upper and lower terminal surface butt of bearing outer lane, first displacement sensor subassembly is used for monitoring the axial runout of load ring down and can send signal to controller, second displacement sensor subassembly is used for monitoring the axial runout of load ring and can send signal to controller. The utility model discloses rational in infrastructure, production low in manufacturing cost, but dynamic response axial play and flexible operation are convenient.

Description

Automobile wheel hub bearing dynamic clearance measuring device

Technical Field

The utility model relates to an automotive production technical field specifically is an automobile wheel hub bearing developments play measuring device.

Background

The bearing play is the clearance between the bearing rollers and the inner and outer race shells of the bearing. The bearing play refers to that when the bearing is in a normal state and has no extra load, the bearing inner ring (or the bearing outer ring) is fixed, and the bearing outer ring (or the bearing inner ring) moves in the axial direction or the radial direction, wherein the moving distance between two limit positions of the inner ring relative to the outer ring in the radial direction or the axial direction is the radial play and the axial play. Wherein, axial play has a great influence on the bearing capacity, service life and the like of the bearing. The axial clearance is too small, the heating is easy, and the temperature difference between the inner ring and the outer ring is large; the axial clearance is too large, and the vehicle body shakes greatly when the automobile runs at high speed. Therefore, the automobile hub bearing needs to be measured and overhauled regularly. The existing axial clearance detector has the disadvantages of complex structure, high use cost, incapability of accurately reflecting the axial clearance during dynamic, and inconvenience for popularization and application.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an automobile wheel hub bearing developments play measuring device, it has solved the technical problem that the structure that bearing axial play measuring device exists is complicated among the prior art, use cost is high and axial play when unable accurate reflection developments, has rational in infrastructure, production low in manufacturing cost, can dynamically reflect axial play and the nimble convenient technological effect of operation and use. The adopted technical scheme is as follows:

the utility model provides an automobile wheel hub bearing developments play measuring device, includes down the location pedestal, goes up the location pedestal, down the load ring, goes up the load ring, first displacement sensor subassembly, second displacement sensor subassembly, first drive unit, second drive unit and third drive unit, down the location pedestal with go up the location pedestal and set up relatively and be in under the first drive unit effect respectively with the upper and lower terminal surface butt of bearing inner circle, the second drive unit can transmit rotary motion to down the location pedestal with last location pedestal rotatory with the drive bearing inner circle, down the load ring with go up the load ring set up relatively and can be under the third drive unit effect respectively with the upper and lower terminal surface butt of bearing outer circle, first displacement sensor subassembly is used for monitoring down the axial runout of load ring and can send signal to the controller, the second displacement sensor subassembly is used for monitoring the axial runout of last load ring and can send signal to the controller.

On the basis of the technical scheme, the lower loading ring and the upper loading ring are identical in structure and are arranged oppositely, the lower loading ring comprises a lower plate surface, the outer edge of the lower plate surface vertically extends towards the bearing outer ring and forms a lower compression ring, the upper loading ring comprises an upper plate surface, the outer edge of the upper plate surface vertically extends towards the bearing outer ring and forms an upper compression ring, and the third driving unit can drive the lower compression ring and the upper compression ring to be close to or far away from each other so as to compress or loosen the bearing outer ring.

On the basis of the technical scheme, the first driving unit comprises a first hydraulic cylinder, and a piston rod of the first hydraulic cylinder is downwards and coaxially and fixedly connected with the upper positioning pedestal.

On the basis of the technical scheme, the lower positioning table is coaxially and fixedly connected with a lower transmission shaft, the lower transmission shaft downwards penetrates through the lower loading ring and is rotatably connected with an axle box where the bearing is located, the upper positioning table is coaxially and fixedly connected with an upper transmission shaft, the transmission shaft downwards extends into the bearing inner ring and is in clearance fit with the bearing inner ring, the transmission shaft upwards penetrates through the upper loading ring, and the second driving unit is fixedly arranged on the axle box and can transmit rotary motion to the upper transmission shaft.

On the basis of the technical scheme, the first displacement sensor assembly comprises a first probe and a second probe, the first probe is fixedly arranged on the side wall of the axle box where the bearing is located, the second probe is fixedly arranged on the lower loading ring, and the first probe can transmit a first signal parallel to the axis of the bearing and receive a first reflected signal reflected by the second probe; the second displacement sensor assembly comprises a third probe and a fourth probe, the third probe is fixedly arranged on the other side wall of the axle box where the bearing is located, the fourth probe is fixedly arranged on the upper loading ring, and the third probe can emit a second signal parallel to the axis of the bearing and receive a second reflection signal reflected by the fourth probe.

On the basis of the technical scheme, the number of the first displacement sensor assemblies is multiple and is distributed circumferentially around the bearing, and the number of the second displacement sensor assemblies is multiple and is distributed circumferentially around the bearing.

On the basis of the technical scheme, the second probe is fixedly arranged on the lower loading ring through a connecting piece, and the fourth probe is fixedly arranged on the upper loading ring through a connecting piece.

Advantageous effects

The utility model discloses rational in infrastructure, adopt vertical structure, lower location pedestal is in with last location pedestal the effect of first drive unit down respectively with bearing inner race's upper and lower terminal surface butt, the second drive unit can transmit rotary motion to location pedestal from top to bottom, lower load ring and last load ring under the effect of third drive unit with bearing inner race's upper and lower terminal surface butt, so can simulate the operational environment of bearing and measure the axial internal clearance dynamically, be favorable to improving measuring result's accuracy.

The utility model discloses in, loading ring is the U-shaped structure from top to bottom, so can make the bearing inner race bear even two-way packing force, stability when being favorable to improving the measurement is favorable to simulating the real operational environment of bearing, in addition, first displacement sensor subassembly quantity is a plurality of and distributes around bearing circumference, and the measurement mean value of a plurality of first displacement sensor subassemblies can reflect axial play size more accurately, second displacement sensor subassembly quantity is a plurality of and distributes around bearing circumference, and the measurement mean value of a plurality of second displacement sensor subassemblies can reflect axial play size more accurately.

Drawings

In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below. It is to be understood that the drawings in the following description are merely exemplary of the invention and that other embodiments may be derived by those skilled in the art without inventive step from the drawings provided.

FIG. 1: the utility model discloses a sectional structure schematic diagram of a front view;

FIG. 2: the structural schematic diagram of the top view of the lower loading ring;

Detailed Description

The following description and the drawings sufficiently illustrate specific embodiments herein to enable those skilled in the art to practice them. Portions and features of some embodiments may be included in or substituted for those of others. The scope of the embodiments herein includes the full ambit of the claims, as well as all available equivalents of the claims. The terms "first," "second," and the like, herein are used solely to distinguish one element from another without requiring or implying any actual such relationship or order between such elements. In fact, a first element could be termed a second element, and vice versa. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a structure, apparatus, or device that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such structure, apparatus, or device. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of other like elements in a structure, device, or apparatus that comprises the element. The various embodiments are described in a progressive manner, with each embodiment focusing on differences from the other embodiments, and with like parts being referred to one another.

The terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like herein, as used herein, are defined as orientations or positional relationships based on the orientation or positional relationship shown in the drawings, and are used for convenience in describing and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. In the description herein, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, mechanical or electrical connections, communications between two elements, direct connections, and indirect connections via intermediary media, where the specific meaning of the terms is understood by those skilled in the art as appropriate.

Herein, the term "plurality" means two or more, unless otherwise specified.

Herein, the character "/" indicates that the preceding and following objects are in an "or" relationship. For example, A/B represents: a or B.

Herein, the term "and/or" is an associative relation describing an object, and means that there may be three relations. For example, a and/or B, represents: a or B, or A and B.

A device for measuring the dynamic clearance of a bearing of an automobile hub as shown in fig. 1 and 2 comprises a lower positioning pedestal 1, an upper positioning pedestal 2, a lower loading ring 3, an upper loading ring 4, a first displacement sensor assembly 5, a second displacement sensor assembly 6, a first driving unit (not shown), a second driving unit (not shown) and a third driving unit (not shown). Lower location pedestal 1 and last location pedestal 2 set up relatively and be in under the effect of first drive unit respectively with bearing inner race 9 upper and lower terminal surface butt, specifically be, first drive unit includes the first pneumatic cylinder with axle box 12 rigid coupling, the piston rod of first pneumatic cylinder and the coaxial rigid coupling of last location pedestal 2, first pneumatic cylinder can drive and go up location pedestal 2 and move from top to bottom in order to be close to or keep away from down location pedestal 1, so can press from both sides tightly or loosen bearing inner race 9. In addition, the coaxial rigid coupling of lower location pedestal 1 has lower transmission shaft 7, lower transmission shaft 7 passes through lower load ring 3 downwards and is connected with axle box 12 rotation at bearing place, the coaxial rigid coupling of last location pedestal 2 has last transmission shaft 8, last transmission shaft 8 can stretch into downwards to bearing inner race 9 and with bearing inner race 9 clearance fit, so can guide and go up location pedestal 2 and the butt of bearing inner race 9 down, go up transmission shaft 8 and pass through last load ring 4 upwards, second drive unit includes and sets firmly the second motor at last transmission shaft through the motor cabinet, the second motor can transmit rotary motion to last transmission shaft 8 and last location pedestal 2, and under the effect of friction, bearing inner race 9, lower location pedestal 1 and last location pedestal 2 synchronous rotation simultaneously.

Lower load ring 3 and last load ring 4 set up relatively, lower load ring 3 is the same with last load ring 4 structure, load ring 3 includes face 31 down, the outer fringe of face 31 is vertical to be extended and form lower clamp ring 32 towards bearing inner race 10 down, it includes the face to go up load ring 4, the outer fringe of going up the face is vertical to be extended and is formed upper clamp ring towards bearing inner race 10, third drive unit includes third pneumatic cylinder and the fourth pneumatic cylinder of avoiding the rigid coupling with axle box 12, the piston rod of third pneumatic cylinder and the coaxial rigid coupling of face 31 down, the third pneumatic cylinder can drive down clamp ring 32 upwards with bearing inner race 10 bottom surface butt, the piston rod of fourth pneumatic cylinder and the coaxial rigid coupling of last face, the clamp ring can be driven down with bearing inner race 10 top surface butt to the fourth pneumatic cylinder, so the third drive unit can drive lower load ring 3 and last load ring 4 and be close to or keep away from to compress tightly or loosen bearing inner race 10.

The first displacement sensor assembly 5 is used for monitoring axial runout of the lower loading ring 3 and sending signals to the controller, the number of the first displacement sensor assemblies 5 is two, and the first displacement sensor assemblies 5 are circumferentially distributed around the bearing, specifically, the first displacement sensor assembly 5 comprises a first probe 51 and a second probe 52, the first probe 51 and the second probe 52 are both electrically connected with the controller, the first probe 51 is fixedly arranged on the side wall of the axle box 12 where the bearing is located, the second probe 52 is fixedly arranged on the lower loading ring 3 through a bolt assembly, the first probe 51 can emit a first signal parallel to the axis of the bearing and receive a first reflection signal reflected by the second probe 52, so as to obtain a time interval from emitting the first signal to receiving the first reflection signal; the second displacement sensor assemblies 6 are used for monitoring axial runout of the upper loading ring 4 and sending signals to the controller, the number of the second displacement sensor assemblies 6 is two, and the second displacement sensor assemblies 6 are distributed circumferentially around the bearing, specifically, the second displacement sensor assemblies 6 comprise a third probe and a fourth probe, the third probe is fixedly arranged on the other side wall of the axle box 12 where the bearing is arranged, the fourth probe is fixedly arranged on the upper loading ring 4 through a bolt assembly, and the third probe can emit second signals parallel to the axis of the bearing and receive second reflection signals reflected by the fourth probe so as to obtain a time interval from emission of the second signals to reception of the second reflection signals.

Working process

The bearing that will wait to detect is placed on lower location pedestal 1, later first drive unit action orders about location pedestal 2 downward displacement, go up transmission shaft 8 and stretch into to bearing inner race 9, simultaneously down location pedestal 1 and last location pedestal 2 respectively with bearing inner race 9 about terminal surface butt, later the action of third drive unit, third pneumatic cylinder and fourth pneumatic cylinder respectively with bearing inner race 10 about terminal surface butt, later the action of second drive unit, the second motor transmits rotary motion to last transmission shaft 8 and drive bearing inner race 9 and rotates, first sensor subassembly 5 and second sensor subassembly 6 send signal to controller simultaneously, the controller judges whether axial internal clearance is in the settlement scope value according to sending signal processing.

The present invention has been described above by way of example, but the present invention is not limited to the above-mentioned embodiments, and any modification or variation based on the present invention is within the scope of the present invention.

Claims

1. The utility model provides an automobile wheel hub bearing dynamic clearance measuring device, characterized in that, but including lower location pedestal (1), go up location pedestal (2), lower load ring (3), go up load ring (4), first displacement sensor subassembly (5), second displacement sensor subassembly (6), first drive unit, second drive unit and third drive unit, down location pedestal (1) and last location pedestal (2) set up relatively and be in first drive unit effect down respectively with the upper and lower terminal surface butt of bearing inner race (9), the second drive unit can transmit rotary motion to down location pedestal (1) and last location pedestal (2) with drive bearing inner race (9) rotation, but lower load ring (3) and last load ring (4) set up relatively and can be under the third drive unit effect respectively with the upper and lower terminal surface butt of bearing outer race (10), first displacement sensor subassembly (5) are used for monitoring the axial butt of lower load ring (3) and can send the signal to the controller, but second displacement sensor subassembly (6) are used for monitoring the axial runout of last load ring (4) and send the signal to the controller.

2. The automobile hub bearing dynamic clearance measuring device according to claim 1, characterized in that the lower load ring (3) and the upper load ring (4) are identical in structure and are arranged oppositely, the lower load ring (3) comprises a lower plate surface (31), the outer edge of the lower plate surface (31) vertically extends towards the bearing outer ring (10) and forms a lower compression ring (32), the upper load ring (4) comprises an upper plate surface, the outer edge of the upper plate surface vertically extends towards the bearing outer ring (10) and forms an upper compression ring, and the third drive unit can drive the lower compression ring (3) and the upper compression ring (4) to be close to or far away from each other so as to compress or loosen the bearing outer ring (10).

3. The automobile hub bearing dynamic clearance measuring device according to claim 2, wherein the first driving unit comprises a first hydraulic cylinder, and a piston rod of the first hydraulic cylinder is downward coaxially and fixedly connected with the upper positioning pedestal (2).

4. The automobile hub bearing dynamic clearance measuring device according to claim 2, wherein the lower positioning pedestal (1) is coaxially and fixedly connected with a lower transmission shaft (7), the lower transmission shaft (7) penetrates through the lower loading ring (3) downwards and is rotatably connected with an axle box (12) where the bearing is located, the upper positioning pedestal (2) is coaxially and fixedly connected with an upper transmission shaft (8), the upper transmission shaft (8) extends downwards into the bearing inner ring (9) and is in clearance fit with the bearing inner ring (9), the upper transmission shaft (8) penetrates through the upper loading ring (4) upwards, and the second driving unit is fixedly arranged on the axle box (12) and can transmit the rotary motion to the upper transmission shaft (8).

5. The automobile hub bearing dynamic clearance measuring device according to any one of claims 1 to 4, wherein the first displacement sensor assembly (5) comprises a first probe (51) and a second probe (52), the first probe (51) is fixedly arranged on the side wall of the axle box (12) where the bearing is located, the second probe (52) is fixedly arranged on the lower loading ring (3), and the first probe (51) can transmit a first signal parallel to the axis of the bearing and receive a first reflected signal reflected by the second probe (52); the second displacement sensor assembly (6) comprises a third probe and a fourth probe, the third probe is fixedly arranged on the other side wall of the axle box (12) where the bearing is located, the fourth probe is fixedly arranged on the upper loading ring (4), and the third probe can emit a second signal parallel to the axis of the bearing and receive a second reflection signal reflected by the fourth probe.

6. The automobile hub bearing dynamic clearance measuring device according to claim 5, wherein the number of the first displacement sensor assemblies (5) is plural and is circumferentially distributed around the bearing, and the number of the second displacement sensor assemblies (6) is plural and is circumferentially distributed around the bearing.

7. The automobile hub bearing dynamic clearance measuring device according to claim 5, wherein the second probe (52) is fixed on the lower loading ring (3) through a connecting piece, and the fourth probe is fixed on the upper loading ring (4) through a connecting piece.