CN111141242A - Vehicle brake drum surface full run-out detection device - Google Patents
Vehicle brake drum surface full run-out detection device Download PDFInfo
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- CN111141242A CN111141242A CN202010100722.XA CN202010100722A CN111141242A CN 111141242 A CN111141242 A CN 111141242A CN 202010100722 A CN202010100722 A CN 202010100722A CN 111141242 A CN111141242 A CN 111141242A
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- block
- brake drum
- mandrel
- support plate
- vehicle brake
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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
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Abstract
The invention discloses a vehicle brake drum surface full-run-out detection device, which comprises a base, a fixed seat, a mandrel, a brake drum fixing device, a V-shaped block fastening device, a distance measuring sensor rotating device and a distance measuring sensor moving device, wherein the base is fixedly arranged on the base; the fixed seat is arranged on the base, the mandrel is arranged on the fixed seat, the brake drum fixing device, the V-shaped block fastening device and the ranging sensor rotating device are all arranged on the mandrel, and the ranging sensor moving device is arranged on the ranging sensor rotating device; according to the invention, through the arrangement of the distance measuring sensor moving device and the distance measuring sensor rotating device, the synchronization of the rotation and the movement of the sensor is realized, the stable track of the sensor is ensured, the operation is simple, and the data error is reduced.
Description
Technical Field
The invention relates to the technical field of vehicle detection, in particular to a device for detecting full surface runout of a vehicle brake drum.
Background
With the progress of society, the automobile industry in China develops rapidly, and the requirement on safety performance of the automobile after being put into use is higher. Safety index inspection is carried out on each vehicle before the vehicle enters the market, in a brake system of the vehicle, a brake drum is a key safety part, and the machining precision of the brake drum determines the braking effect, so that the quality detection of the brake drum becomes an indispensable link for checking the safety performance of the vehicle.
In the prior art, the detection part of the full run-out of the surface of the brake drum is manually checked, and the mode has the defects of large error of the detection result and low working efficiency. Part of the detection devices for the brake drum have poor structural stability, the detection result has large error, the detection method is too complex, and the detection device has high cost.
In view of the above-mentioned drawbacks, the inventors of the present invention have finally obtained the present invention through a long period of research and practice.
Disclosure of Invention
In order to solve the technical defects, the invention adopts the technical scheme that the device for detecting the full run-out of the surface of the vehicle brake drum comprises a base, a fixed seat, a mandrel, a brake drum fixing device, a V-shaped block fastening device, a distance measuring sensor rotating device and a distance measuring sensor moving device; the fixing base sets up on the base, the dabber sets up on the fixing base, brake drum fixing device V type piece fastener with range finding sensor rotating device all sets up on the dabber, range finding sensor mobile device sets up range finding sensor rotating device is last.
Preferably, the fixing seats comprise a first fixing seat and a second fixing seat, and the first fixing seat and the second fixing seat are respectively arranged at two ends of the mandrel; the first fixing seat comprises a first lower supporting seat and a first upper pressing cover, the second fixing seat comprises a second upper pressing cover and a second lower supporting seat, the first lower supporting seat is connected with the first upper pressing cover, the second lower supporting seat is connected with the second upper pressing cover, and the mandrel is fixedly arranged in two circle center through holes respectively formed by the first lower supporting seat and the first upper pressing cover, the second lower supporting seat and the second upper pressing cover.
Preferably, the brake drum fixing device comprises a pressing shaft sleeve and a first conical block; the first conical block is fixedly arranged on the mandrel through the compressing shaft sleeve, a second conical block is arranged on the mandrel, the first conical block is reversely placed relative to the second conical block, a first tapered roller bearing and a second tapered roller bearing are respectively arranged on the first conical block and the second conical block on the mandrel, the first tapered roller bearing and the second tapered roller bearing are simultaneously in contact connection with the inner wall of the hub, the brake drum is connected with the hub, and the axes of the brake drum, the hub and the mandrel are on the same straight line.
Preferably, the mandrel is provided with a thread line and a stepped shaft; the compression shaft sleeve is in threaded connection with the thread line of the mandrel, and the first conical block is axially and tightly fixed on the stepped shaft of the mandrel through the compression shaft sleeve.
Preferably, the V-shaped block fastening device comprises an upper V-shaped block, a lower V-shaped block, an elastic rubber sheet, a V-shaped block connecting rod and a V-shaped block bottom supporting plate, the upper V-shaped block is connected with the V-shaped block bottom supporting plate through the V-shaped block connecting rod, the lower V-shaped block is connected with the V-shaped block bottom supporting plate through the elastic rubber sheet, and a distance measuring sensor is arranged on the upper V-shaped block.
Preferably, the opposite end surfaces of the upper V-shaped block and the lower V-shaped block are provided with V-shaped grooves, and the V-shaped grooves of the upper V-shaped block and the lower V-shaped block are tightly attached to the mandrel.
Preferably, a boss is arranged on the end face, far away from the lower V-shaped block, of the upper V-shaped block, the distance measuring sensor is fixed on the boss, the elastic rubber sheet is fixedly connected to the end face, far away from the upper V-shaped block, of the lower V-shaped block, and the support plate at the bottom of the V-shaped block is in contact with the elastic rubber sheet.
Preferably, the sensor rotating device comprises a first motor, a gear, a slewing bearing and a rotating support plate, wherein two protruding rods are arranged at one end, close to the upper V-shaped block, of the rotating support plate, the gear is connected with an output shaft of the first motor, the gear is meshed with the slewing bearing, an inner ring of the slewing bearing is fixedly connected with the mandrel, an outer ring of the slewing bearing is fixedly connected with the rotating support plate, the upper V-shaped block is arranged in a movable groove formed between the two protruding rods, and the rotating support plate rotates around the axis of the mandrel through the transmission of the gear by the first motor.
Preferably, a square hole is formed in the fixed seat, and the first motor is fixedly arranged in the square hole in the second lower supporting seat.
The preferred, the sensor mobile device includes hold-in range switching flange, second motor, first synchronous pulley, second synchronous pulley and hold-in range, rotatory backup pad is close to the one end of V type piece is provided with the bottom plate down, the second motor the second synchronous pulley is all fixed on the bottom plate, first synchronous pulley is fixed on the output shaft of second motor, the hold-in range with first synchronous pulley the cooperation of second synchronous pulley sets up, the hold-in range passes through hold-in range switching flange with V type piece bottom sprag board fixed connection.
Compared with the prior art, the invention has the beneficial effects that: the invention realizes the rotation and movement of the sensor through the arrangement of the sensor moving device and the sensor rotating device and through the gear transmission of the first motor and the belt wheel transmission of the second motor, thereby ensuring the stable track of the sensor, having simple operation and reducing the data error; 2, the V-shaped grooves of the upper V-shaped block and the lower V-shaped block are tightly attached to the mandrel, and the two pairs of brake drums fixed by the conical blocks are reversely placed, so that the measurement error is correspondingly reduced; 3. when the measurement accuracy has different actual requirements, the output rotating speed of the motor is changed, so that different accuracy requirements are met.
Drawings
FIG. 1 is a schematic view of the vehicle brake drum surface full run-out detection apparatus;
FIG. 2 is a block diagram of the vehicle brake drum surface full run-out detection apparatus;
FIG. 3 is a structural view of the V-block fastening device;
fig. 4 is a structural view of the sensor rotating means and the sensor moving means.
The figures in the drawings represent:
1-a first lower bearing support; 2-a first upper hold down cap; 3-a hub; 4-brake drum; 5-rotating the support plate; 6-a second upper compression cover; 7-a second lower bearing block; 8, pressing the shaft sleeve; 9-pulling the button; 10-a first tapered roller bearing outer race; 11-a first conical block; 12-a second tapered roller bearing outer race; 13-a mandrel; 14-upper V-shaped block; 15-lower V-shaped block; 16-an elastic rubber sheet; 17-a V-block bottom support plate; 18 synchronous belt adapter flanges; 19 a ranging sensor; a 20V-shaped block connecting rod; 21-a slewing bearing; 22 gears; 23-a first motor; 24-motor fixing seat; 25-a second motor; 26-a first synchronous pulley; 27-a synchronous belt; 28-pulley holders; 29 a second timing pulley; 30 base.
Detailed Description
The above and further features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, fig. 1 is a schematic diagram of the vehicle brake drum surface full run-out detection device, and fig. 2 is a structural diagram of the vehicle brake drum surface full run-out detection device; the invention relates to a vehicle brake drum surface full-run-out detection device, which comprises a base 30, a fixed seat, a mandrel 13, a brake drum fixing device, a V-shaped block fastening device, a distance measuring sensor rotating device and a distance measuring sensor moving device, wherein the fixed seat is fixedly connected with the base; the dabber 13 passes through the fixing base is fixed to be set up on the base 30, brake drum fixing device, V type piece fastener and range finding sensor rotating device all fix on dabber 13, range finding sensor mobile device is fixed range finding sensor rotating device is last.
Preferably, the fixing seats include a first fixing seat and a second fixing seat, and the first fixing seat and the second fixing seat are respectively arranged at two ends of the mandrel 13; the fixing seats are composed of a lower supporting seat and an upper pressing cover, namely the first fixing seat comprises a first lower supporting seat 1 and a first upper pressing cover 2, the second fixing seat comprises a second upper pressing cover 6 and a second lower supporting seat 7, the lower supporting seat is connected with the upper pressing cover through a hinge and a lock catch, the mandrel 13 is fixedly installed in a circle center through hole formed by the lower supporting seat and the upper pressing cover, and a square hole is formed in the second lower supporting seat 7.
The brake drum fixing device comprises a hub 3, a brake drum 4, a pressing shaft sleeve 8, a first conical block 11 and a pull buckle 9; generally, the mandrel 13 is provided with a thread line, a stepped shaft and a second taper block; the pulling buckle 9 is closely matched with a threaded hole on the first tapered block 11 through an external thread, the first tapered block 11 is convenient to detach by arranging the pulling buckle 9, the pressing shaft sleeve 8 is installed on a threaded line position of the mandrel 13 through threaded matching, the first tapered block 11 is axially attached and fixed on a stepped shaft of the mandrel 13 through the pressing shaft sleeve 8, the first tapered block 11 is reversely placed relative to the second tapered block position on the mandrel 13, a first tapered roller bearing 10 and a second tapered roller bearing 12 are respectively installed on the first tapered block 11 and the second tapered block on the mandrel 13, the first tapered roller bearing 10 and the second tapered roller bearing 12 are simultaneously in contact connection with the inner wall of the hub 3 so as to fix the hub 3 on the mandrel 13 through the first tapered block 11 and the second tapered block, the brake drum 4 is connected to the hub 3 by bolts so that the axes of the brake drum 4, the hub 3 and the spindle 13 are aligned. The brake drum 4 and the hub 3 are kept stable in position on the spindle 13 by the first conical block 11 and the second conical block.
As shown in fig. 3, fig. 3 is a structural view of the V-block fastening device; v type piece fastener includes V type piece 14, V type piece 15, range finding sensor 19, elastic rubber piece 16, V type piece connecting rod 20 and V type piece bottom sprag board 17 down, it passes through to go up V type piece 14V type piece connecting rod 20 with V type piece bottom sprag board 17 is connected, V type piece 15 passes through elastic rubber piece 16 with V type piece bottom sprag board 17 is connected down, V type piece 15 sets up V type piece bottom sprag board 17 with go up between the V type piece 14.
Preferably, the upper V-shaped block 14 and the lower V-shaped block 15 are both single-opening V-shaped blocks, a V-shaped groove is formed in the lower end face of the upper V-shaped block 14, a V-shaped groove is formed in the upper end face of the lower V-shaped block 15, and the V-shaped grooves of the upper V-shaped block 14 and the lower V-shaped block 15 are tightly attached to the mandrel 13. The elastic rubber sheet 16 provides elasticity, so that the V-shaped grooves of the upper V-shaped block 14 and the lower V-shaped block 15 are attached to the mandrel 13 more tightly.
Go up V type piece 14's upper mounting plate and be provided with activity groove and boss, just the four corners of upper mounting plate is provided with the screw through-hole, range sensor 19 passes through the bolt fastening go up V type piece 14 upper mounting plate on the boss, V type piece connecting rod 20 pass through the bolt with go up the screw through-hole connection of V type piece 14, V type piece bottom sprag board 17 with V type piece connecting rod 20 is connected, elastic rubber piece 16 fixed connection is in on the lower terminal surface of V type piece 15 down, just V type piece bottom sprag board 17 with elastic rubber piece 16 contact sets up. The movable groove is arranged on the boss and used for placing the distance measuring sensor 19.
Preferably, set up first through-hole on the V type piece bottom sprag board 17, set up the second through-hole on the elastic rubber piece 16, V type piece connecting rod 20 bottom sets up the screw hole, with the bolt pass in proper order first through-hole the second through-hole and in screw hole threaded connection, thereby it is fixed V type piece bottom sprag board 17 with relative position between the elastic rubber piece 16 fixed connection is in under the prerequisite of the lower terminal surface of V type piece 15 down, V type piece bottom sprag board 17 elastic rubber piece 16 with V type piece 15 relative position is fixed down.
As shown in fig. 4, fig. 4 is a structural view of the sensor rotating means and the sensor moving means; the sensor rotating device comprises a first motor 23, a gear 22, a slewing bearing 21 and a rotary supporting plate 5; the upper end of the rotating support plate 5 is provided with two extending protruding rods, the lower end of the rotating support plate is provided with an extending bottom plate, the first motor 23 is fixedly installed in a square hole in the second lower support seat, the gear 22 is in fit connection with an output shaft of the first motor 23 through a flat key, the gear 22 is in meshed connection with the slewing bearing 21, an inner ring of the slewing bearing 21 is fixedly connected with the mandrel 13 through a bolt, an outer ring of the slewing bearing 21 is fixedly connected with the rotating support plate 5 through a bolt, the two protruding rods at the upper end of the rotating support plate 5 clamp front and rear end faces of the upper V-shaped block 14 so as to fix the position of the upper V-shaped block 14, and the first motor 23 drives the rotating support plate 5 to rotate around the axis of the mandrel 13 through the transmission of the gear 22 so as to push the upper V-shaped block 14 to rotate, the distance measuring sensor 19 on the upper V-block 14 is set in rotational motion.
The sensor moving device comprises a synchronous belt switching flange 18, a second motor 25, a motor fixing seat 24, a belt wheel fixing seat 28, a first synchronous belt wheel 26, a second synchronous belt wheel 29 and a synchronous belt 27, wherein the motor fixing seat 24 and the belt wheel fixing seat 28 are fixed on a bottom plate at the lower end of the rotary supporting plate 5, the first synchronous belt wheel 26 is fixed on an output shaft of the second motor 25, the first synchronous belt wheel 26 is installed on the belt wheel fixing seat 28, the synchronous belt 27 is installed in a matching manner with the first synchronous belt wheel 26 and the second synchronous belt wheel 29, the synchronous belt 27 is fixedly connected with a square block at the bottom of the V-shaped block bottom supporting plate 17 through the synchronous belt switching flange 18 and a bolt, the second motor 25 drives the second synchronous belt wheel 29 to rotate, and transmits motion to the upper V-shaped block 14 through the synchronous belt 27, the distance measuring sensor 19 on the upper V-block 14 is caused to perform a translational movement.
According to the invention, through the arrangement of the sensor moving device and the sensor rotating device, the rotation and the movement of the sensor are realized through the gear transmission of the first motor and the belt wheel transmission of the second motor, the stable track of the sensor is ensured, the operation is simple, and the data error is reduced.
The foregoing is merely a preferred embodiment of the invention, which is intended to be illustrative and not limiting. It will be understood by those skilled in the art that various changes, modifications and equivalents may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A vehicle brake drum surface full run-out detection device is characterized by comprising a base, a fixed seat, a mandrel, a brake drum fixing device, a V-shaped block fastening device, a distance measuring sensor rotating device and a distance measuring sensor moving device; the fixing base sets up on the base, the dabber sets up on the fixing base, brake drum fixing device V type piece fastener with range finding sensor rotating device all sets up on the dabber, range finding sensor mobile device sets up range finding sensor rotating device is last.
2. The vehicle brake drum surface full run-out detection device according to claim 1, wherein the fixing seats comprise a first fixing seat and a second fixing seat, and the first fixing seat and the second fixing seat are respectively arranged at two ends of the mandrel; the first fixing seat comprises a first lower supporting seat and a first upper pressing cover, the second fixing seat comprises a second upper pressing cover and a second lower supporting seat, the first lower supporting seat is connected with the first upper pressing cover, the second lower supporting seat is connected with the second upper pressing cover, and the mandrel is fixedly arranged in two circle center through holes respectively formed by the first lower supporting seat and the first upper pressing cover, the second lower supporting seat and the second upper pressing cover.
3. The vehicle brake drum surface full runout detecting device according to claim 1, wherein the brake drum fixing device includes a pressing boss, a first tapered block; the first conical block is fixedly arranged on the mandrel through the compressing shaft sleeve, a second conical block is arranged on the mandrel, the first conical block is reversely placed relative to the second conical block, a first tapered roller bearing and a second tapered roller bearing are respectively arranged on the first conical block and the second conical block on the mandrel, the first tapered roller bearing and the second tapered roller bearing are simultaneously in contact connection with the inner wall of the hub, the brake drum is connected with the hub, and the axes of the brake drum, the hub and the mandrel are on the same straight line.
4. The vehicle brake drum surface full run-out detection apparatus of claim 3, wherein the spindle is provided with a thread and a stepped shaft; the compression shaft sleeve is in threaded connection with the thread line of the mandrel, and the first conical block is axially and tightly fixed on the stepped shaft of the mandrel through the compression shaft sleeve.
5. The vehicle brake drum surface full run-out detection apparatus as claimed in claim 1, wherein the V-block fastening means includes an upper V-block, a lower V-block, an elastic rubber sheet, a V-block connecting rod and a V-block bottom support plate, the upper V-block is connected to the V-block bottom support plate through the V-block connecting rod, the lower V-block is connected to the V-block bottom support plate through the elastic rubber sheet, and a distance measuring sensor is provided on the upper V-block.
6. The vehicle brake drum surface full run-out detection device according to claim 5, wherein the opposite end surfaces of the upper V-shaped block and the lower V-shaped block are provided with V-shaped grooves, and the V-shaped grooves of the upper V-shaped block and the lower V-shaped block are tightly attached to the mandrel.
7. The apparatus for detecting the full run-out of a vehicle brake drum according to claim 6, wherein a boss is provided on an end surface of the upper V-block remote from the lower V-block, the distance measuring sensor is fixed to the boss, the elastic rubber sheet is fixedly connected to an end surface of the lower V-block remote from the upper V-block, and the V-block bottom support plate is disposed in contact with the elastic rubber sheet.
8. The apparatus for detecting full runout of a vehicle brake drum according to claim 5, wherein the sensor rotating means includes a first motor, a gear, a slewing bearing, and a rotary support plate, the rotary support plate is provided with two projecting rods near one end of the upper V-shaped block, the gear is connected to an output shaft of the first motor, the gear is engaged with the slewing bearing, an inner ring of the slewing bearing is fixedly connected to the spindle, an outer ring of the slewing bearing is fixedly connected to the rotary support plate, the upper V-shaped block is disposed in a movable groove formed between the two projecting rods, and the first motor rotates the rotary support plate around the axis of the spindle by means of the gear transmission.
9. The apparatus for detecting full surface runout of a vehicle brake drum according to claim 8, wherein a square hole is formed in the fixing base, and the first motor is fixedly disposed in the square hole in the second lower supporting base.
10. The apparatus as claimed in claim 8, wherein the sensor moving means includes a timing belt adapter flange, a second motor, a first timing pulley, a second timing pulley and a timing belt, a bottom plate is disposed at one end of the rotary support plate near the lower V-shaped block, the second motor and the second timing pulley are both fixed to the bottom plate, the first timing pulley is fixed to an output shaft of the second motor, the timing belt is engaged with the first timing pulley and the second timing pulley, and the timing belt is fixedly connected to the V-shaped block bottom support plate through the timing belt adapter flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010100722.XA CN111141242B (en) | 2020-02-18 | 2020-02-18 | Vehicle brake drum surface full run-out detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010100722.XA CN111141242B (en) | 2020-02-18 | 2020-02-18 | Vehicle brake drum surface full run-out detection device |
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| CN111141242A true CN111141242A (en) | 2020-05-12 |
| CN111141242B CN111141242B (en) | 2021-11-19 |
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| CN202010100722.XA Active CN111141242B (en) | 2020-02-18 | 2020-02-18 | Vehicle brake drum surface full run-out detection device |
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