CN210533718U - Flat plate type automobile brake inspection bench - Google Patents
Flat plate type automobile brake inspection bench Download PDFInfo
- Publication number
- CN210533718U CN210533718U CN201921702478.3U CN201921702478U CN210533718U CN 210533718 U CN210533718 U CN 210533718U CN 201921702478 U CN201921702478 U CN 201921702478U CN 210533718 U CN210533718 U CN 210533718U
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- Prior art keywords
- ball
- cover ring
- groove
- ball seat
- guide
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Abstract
The utility model discloses a flat plate type automobile brake inspection bench, which comprises a rack and a brake bedplate, wherein a guide mechanism is arranged on the rack, the guide mechanism comprises a fixed support, small balls, a connecting bolt, a blocking bolt, a ball seat, guide balls and a cover ring, the fixed support is connected with the rack, one end of the ball seat is connected with the fixed support, the other end of the ball seat is provided with a hemispherical groove, and the cover ring and the ball seat are both provided with annular grooves; through grooves are formed in the mutually opposite surfaces of the cover ring and the ball seat; the cover ring is connected with the ball seat through a connecting bolt, the annular grooves are spliced to form annular groove bodies, and the through grooves are spliced to form threaded holes; the small balls are arranged in the annular groove body in a first-to-last contact manner in sequence; the blocking bolt is in threaded connection with the threaded hole body; one end of the guide ball is positioned in the groove, and the other end of the guide ball penetrates through the central hole of the cover ring and then is contacted with the side wall of the brake bedplate. The utility model discloses the installation of the little ball of being convenient for has improved the efficiency of its assembly, has reduced the production degree of difficulty.
Description
Technical Field
The utility model relates to an automobile inspection technical field, concretely relates to flat car braking checkout stand.
Background
The flat plate brake test bench for automobile is used to test the brake performance of motor vehicle and is one dynamic test equipment. The test process of the vehicle on the flat plate type brake inspection bench of the automobile is carried out dynamically, so that the brake performance of the vehicle can be reflected actually, and compared with a drum type brake inspection bench, the test time is shorter and the efficiency is higher.
The prior art CN203688235U discloses an automobile flat plate brake inspection bench, wherein a guiding mechanism arranged on the platform comprises a fixed support, a guiding ball seat and a small ball, and the small ball is tightly arranged in the guiding ball seat; the guide ball is arranged on the small balls, and the cover plate is arranged on the guide ball seat. When actually assembling this guiding mechanism, need earlier the vertical placing of direction ball seat to the axis that is used for installing the ring channel of little ball on it is perpendicular to the horizontal plane, say each little ball assembly after that on the direction ball seat, in the inner chamber that encloses little ball with direction ball card again, establish the apron lid on the direction ball at last again. In the assembly, in order to install the small ball into the annular groove, the cross section of the annular groove is semicircular, the center of the small ball is positioned at the opening of the annular groove, and part of the small ball always falls from the annular groove in the whole assembly process; particularly, when the last small ball is installed, the small ball around the last small ball is always extruded out of the annular groove due to the fact that the last small ball needs to be clamped in the annular groove, and installation is difficult.
Disclosure of Invention
The utility model aims to provide a: the flat plate type automobile brake inspection table solves the problem that part of small balls always fall from an annular groove in the whole assembly process of the conventional automobile flat plate type brake inspection table; especially, when the last small ball is installed, the small ball around the last small ball is always extruded out of the annular groove due to the fact that the last small ball needs to be clamped in the annular groove, and the installation is difficult. The utility model discloses a flat car braking checkout stand from the newly-designed guiding mechanism that flat car braking checkout stand adopted to the installation of little ball has improved the efficiency of its assembly, has reduced the production degree of difficulty.
The utility model adopts the technical scheme as follows:
a flat plate type automobile brake inspection bench comprises a bench, a brake bedplate arranged above the bench, a detection assembly arranged between the brake bedplate and the bench and used for detecting the braking force of wheels, guide mechanisms arranged on the bench and at two sides of the running direction of the brake bedplate, wherein each guide mechanism comprises a fixed support, a small ball, a connecting bolt, a blocking bolt, a ball seat, a guide ball and a cover ring which are coaxial with each other,
the bottom of the fixed support is connected with the rack, one end of the ball seat is connected with the fixed support, the other end of the ball seat is provided with a hemispherical groove, the cover ring is positioned on one side of the ball seat far away from the fixed support, annular grooves are arranged on the opposite surfaces of the cover ring and the ball seat and on one sides close to the axis of the cover ring, the cross sections of the annular grooves are arc-shaped, the opposite central angles of the annular grooves are α, and the central angles are more than 90 degrees and less than α degrees and less than 180 degrees;
through grooves with semicircular cross sections are arranged on the opposite surfaces of the cover ring and the ball seat, one end of each through groove is communicated with the annular groove, the other end of each through groove is communicated with the outside, and threads are arranged on the groove walls of the through grooves along the axis of the annular groove;
the cover ring is connected with the ball seat through a connecting bolt, the opposite surfaces of the cover ring and the ball seat are mutually contacted, the annular groove on the cover ring and the annular groove on the ball seat are spliced to form an annular groove body with a preferred arc-shaped cross section, and the through groove on the cover ring and the through groove on the ball seat are spliced to form a threaded hole with a circular cross section;
the radii of the cross sections of the small balls and the annular groove and the radius of the cross section of the through groove are consistent, and a plurality of small balls are arranged in the annular groove body in an end-to-end contact manner in sequence; the blocking bolt is in threaded connection with the threaded hole body, and the tail end of the rod part of the blocking bolt is in contact with a small ball which is positioned in the annular groove body and is opposite to the threaded hole;
one end of the guide ball is positioned in the groove, the other end of the guide ball penetrates through the central hole of the cover ring and then is in contact with the side wall of the braking bedplate, the guide ball is tangent to the small ball, and the center of the guide ball is positioned on one side, close to the ball seat, of the center of the small ball.
And furthermore, a mounting groove is formed in the bottom of the groove, a copper block with the shape and size consistent with the size of the mounting groove is arranged in the mounting groove, a hemispherical positioning groove is formed in one end, far away from the mounting groove, of the copper block, a positioning steel ball with the ball diameter consistent with that of the positioning groove is arranged in the positioning groove, and the positioning steel ball is tangent to the guide ball.
Further, the inner ring surface of the cover ring is concavely provided with a spherical concave surface around the spherical center of the guide ball.
Further, the connecting bolt and the blocking bolt are both countersunk bolts.
Further, the detection assembly is fixed on a weighing sensor on the rack and a rotating body which is arranged on the weighing sensor and is in contact with the bottom of the brake bedplate.
Due to the adoption of the technical scheme, the beneficial effects of the utility model are that:
1. the utility model relates to a flat car braking checkout stand, the installation of the little ball of being convenient for has improved the efficiency of its assembly, has reduced the production degree of difficulty: when the guide mechanism is assembled, firstly, the guide ball is arranged in the groove, then the cover ring is contacted with one side of the ball seat far away from the fixed support, and then the tail end of the rod part of the connecting bolt sequentially penetrates through the cover ring and then is inserted into a threaded hole matched with the cover ring on the ball seat and is in threaded connection with the threaded hole so as to fix the cover ring on the ball seat; then, small balls are placed in the annular groove body formed by splicing the annular grooves in the threaded holes formed by splicing the through grooves, the axis of each threaded hole is perpendicular to the ground, one end, far away from the annular groove, of each threaded hole is located at the top, the balls move to the lowest end along the groove wall of each annular groove after entering the threaded holes under the action of gravity, after the last small ball is placed in each threaded hole, the blocking bolt is matched with the threaded hole, and the last small ball is pressed into the annular groove, so that the small balls are in a circumferential tight contact state, and the guide balls can rotate towards all directions under the support of the small balls;
2. the utility model relates to a flat plate type automobile brake inspection bench, the arrangement of a positioning steel ball reduces the friction force between a guide ball and a groove, and the positioning steel ball rolls towards any direction together with the guide ball, and the external force required by triggering is smaller, the reaction time is shorter, thus being beneficial to improving the accuracy of each parameter measurement;
3. the utility model relates to a flat car braking checkout stand, the setting of brass piece has prevented that the condition that the ball seat is fixed a position the steel ball wearing and tearing from appearing to during later maintenance, guaranteed the good quality of ball seat, it can not produce wearing and tearing.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, for those skilled in the art, other related drawings can be obtained according to the drawings without creative efforts, and the proportional relationship of each component in the drawings in the present specification does not represent the proportional relationship in the actual material selection design, and is only a schematic diagram of the structure or the position, in which:
fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of a guide mechanism;
FIG. 3 is a schematic view of the structure of the cover ring;
FIG. 4 is a schematic view of the ball seat;
fig. 5 is a schematic structural view of a copper block.
Reference numerals in the drawings indicate:
1-bench, 2-brake bench, 3-fixed support, 4-ball seat, 5-small ball, 6-guide ball, 7-cover ring, 8-connecting bolt, 9-blocking bolt, 10-groove, 11-annular groove, 12-through groove, 13-mounting groove, 14-copper block, 15-positioning groove, 16-positioning steel ball, 17-weighing sensor and 18-rotator.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
The term "connected" as used herein is intended to mean a conventional connection, such as integrally formed, welded, riveted, etc., if not specifically emphasized, and the specific connection is preferably adapted according to conventional technical knowledge in the art. All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
The present invention will be described in detail with reference to fig. 1 to 5.
Example 1
As shown in figures 1-5, the flat plate type automobile brake inspection bench of the utility model comprises a rack 1, a brake platen 2 arranged above the rack 1, a detection component for detecting the braking force of a wheel arranged between the brake platen 2 and the rack 1, and guide mechanisms arranged on the rack and at two sides of the brake platen 2 in the driving direction, wherein the guide mechanisms comprise a fixed support 3, a small ball 5, a connecting bolt 8, a blocking bolt 9, a ball seat 4, a guide ball 6 and a cover ring 7 which are coaxial with each other,
the bottom of the fixed support 3 is connected with the rack 1, one end of the ball seat 4 is connected with the fixed support 3, the other end of the ball seat is provided with a hemispherical groove 10, the cover ring 7 is positioned on one side of the ball seat 4 far away from the fixed support 3, annular grooves 11 are respectively arranged on the mutually opposite surfaces of the cover ring 7 and the ball seat 4 and on one side close to the axis of the cover ring 7, the cross sections of the annular grooves 11 are arc-shaped, the opposite central angles are α, the 90 degrees are more than α and less than 180 degrees, and the preferred angle is 100 degrees;
through grooves 12 with semicircular cross sections are arranged on the opposite surfaces of the cover ring 7 and the ball seat 4, one end of each through groove 12 is communicated with the annular groove 11, the other end of each through groove 12 is communicated with the outside, and threads are arranged on the groove walls of the through grooves 12 along the axis of the annular groove;
the cover ring 7 is connected with the ball seat 4 through a connecting bolt 8, the opposite surfaces of the cover ring are contacted with each other and then contacted with the side wall of the brake bedplate 2, an annular groove body with a good arc-shaped cross section is formed by splicing the annular groove 11 on the cover ring 7 and the annular groove 11 on the ball seat 4, and a threaded hole with a circular cross section is formed by splicing the through groove 12 on the cover ring 7 and the through groove 12 on the ball seat 4;
the radii of the cross sections of the small balls 5 and the annular groove 11 and the radius of the cross section of the through groove 12 are the same, and a plurality of small balls 5 are arranged in the annular groove body in an end-to-end contact manner in sequence; the blocking bolt 9 is in threaded connection with the threaded hole body, and the tail end of the rod part of the blocking bolt is in contact with a small ball which is positioned in the annular groove body and is opposite to the threaded hole;
one end of the guide ball 6 is positioned in the groove 10, the other end of the guide ball penetrates out of the center hole of the cover ring 7, the guide ball 6 is tangent to the small ball 5, and the center of the guide ball 6 is positioned on one side, close to the ball seat 4, of the center of the small ball 5.
Further, the inner ring surface of the cover ring 7 is concavely formed into a spherical concave surface around the center of the guide ball 6.
Further, the connecting bolt 8 and the blocking bolt 9 are both countersunk bolts.
Further, the detection assembly is fixed on a load cell 17 on the table frame 1, and a rotating body 18 which is arranged on the load cell 17 and contacts with the bottom of the brake table plate 2.
In the utility model, when the guiding mechanism is assembled, the guiding ball 6 is firstly installed in the groove 10, then the cover ring 7 is contacted with one side of the ball seat 4 far away from the fixed support 3, then the rod end of the connecting bolt 8 is inserted into the screw hole matched with the cover ring 7 after sequentially passing through the cover ring 7 and is in threaded connection with the screw hole, so as to fix the cover ring 7 on the ball seat 4; then, a small ball is placed in the annular groove body assembled into the annular groove 11 through the threaded hole assembled into the through groove 12, the axis of the threaded hole is perpendicular to the ground, one end, far away from the annular groove, of the threaded hole is located at the top, under the action of gravity, the ball moves to the lowest end along the groove wall of the annular groove 11 after entering the threaded hole, after the last small ball is placed into the threaded hole, the blocking bolt 9 is matched with the threaded hole, the last small ball is pressed into the annular groove, so that the small ball is in a circumferential tight contact state, and the guide ball can rotate towards all directions under the support of the small balls.
The centre of the guide ball 6 is positioned on one side of the centre of the small ball 5 close to the ball seat 4, so that the guide ball 6 can be fixed in the groove through the small ball 5, and can be prevented from being withdrawn from the groove.
The utility model discloses a flat car braking checkout stand is convenient for the installation of little ball, has improved the efficiency of its assembly, has reduced the production degree of difficulty.
Example 2
In this embodiment, the rolling of the guide ball 6 is further optimized in addition to embodiment 1.
In embodiment 1, the guiding ball needs to contact with the bottom of the groove 10, the friction between the guiding ball and the groove is large, and in order to reduce the friction force between the guiding ball and the groove, the guiding ball rolls conveniently, preferably, a mounting groove 13 is arranged at the bottom of the groove 10, a copper block 14 with the shape and the size consistent with the size of the mounting groove 13 is arranged in the mounting groove 13, the copper block 14 is preferably a brass block, a hemispherical positioning groove 15 is arranged at one end of the copper block 14 far away from the mounting groove 13, a positioning steel ball 16 with the ball diameter consistent with the ball diameter of the positioning groove 15 is arranged in the positioning groove 15, and the positioning steel ball 16 is tangent to the guiding ball 6. The arrangement of the positioning steel ball 16 reduces the friction between the guide ball and the groove 10, and the guide ball rolls in any direction, and the external force required by triggering is smaller, the reaction time is shorter, and the accuracy of measuring each parameter is improved.
The arrangement of the brass blocks prevents the condition that the ball seat is abraded by the positioned steel balls, thereby ensuring the good quality of the ball seat during later maintenance without abrasion. The ball seat and the part of the cover ring which is matched with the small balls are also preferably provided with corresponding brass anti-abrasion layers.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can be covered within the protection scope of the present invention without the changes or substitutions conceived by the inventive work within the technical scope disclosed by the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (5)
1. The utility model provides a flat car braking checkout stand, includes rack (1), is located braking platen (2) of rack (1) top be provided with the detection subassembly that is used for detecting the braking force of wheel between braking platen (2) and rack (1), just be located braking platen (2) both sides of driving a vehicle the direction on the rack and all be provided with guiding mechanism, its characterized in that: the guide mechanism comprises a fixed support (3), a small ball (5), a connecting bolt (8), a blocking bolt (9), a ball seat (4), a guide ball (6) and a cover ring (7) which are coaxial with each other,
the bottom of the fixed support (3) is connected with the rack (1), one end of the ball seat (4) is connected with the fixed support (3), the other end of the ball seat is provided with a hemispherical groove (10), the cover ring (7) is positioned on one side of the ball seat (4) far away from the fixed support (3), annular grooves (11) are arranged on the opposite surfaces of the cover ring (7) and the ball seat (4) and on one side close to the axis of the cover ring (7), the cross sections of the annular grooves (11) are arc-shaped, the opposite central angles are α, and 90 degrees is more than α degrees and less than 180 degrees;
through grooves (12) with semicircular cross sections are formed in the opposite surfaces of the cover ring (7) and the ball seat (4), one end of each through groove (12) is communicated with the annular groove (11), the other end of each through groove is communicated with the outside, and threads are arranged on the groove walls of the through grooves (12) along the axis of the annular groove;
the cover ring (7) is connected with the ball seat (4) through a connecting bolt (8), opposite surfaces of the cover ring and the ball seat are mutually contacted, an annular groove body with a good arc-shaped cross section is formed by splicing an annular groove (11) on the cover ring (7) and an annular groove (11) on the ball seat (4), and a threaded hole with a circular cross section is formed by splicing a through groove (12) on the cover ring (7) and a through groove (12) on the ball seat (4);
the radii of the cross sections of the small balls (5) and the annular groove (11) and the radii of the cross sections of the through grooves (12) are the same, and a plurality of small balls (5) are arranged in the annular groove body in an end-to-end contact manner in sequence; the blocking bolt (9) is in threaded connection with the threaded hole body, and the tail end of the rod part of the blocking bolt is in contact with a small ball which is positioned in the annular groove body and is opposite to the threaded hole;
one end of the guide ball (6) is positioned in the groove (10), the other end of the guide ball penetrates through a center hole of the cover ring (7) and then is in contact with the side wall of the brake bedplate (2), the guide ball (6) and the small ball (5) are tangent, and the center of the guide ball (6) is positioned on one side, close to the ball seat (4), of the center of the small ball (5).
2. The flatbed automobile brake inspection station of claim 1, wherein: the tank bottom of recess (10) is provided with mounting groove (13), is provided with the copper billet (14) that the size of shape size and mounting groove (13) is unanimous in mounting groove (13) the one end that mounting groove (13) were kept away from in copper billet (14) is provided with hemispherical constant head tank (15) set up the constant head ball (16) of the footpath of sphere and constant head tank (15) in constant head tank (15), location steel ball (16) are tangent with direction ball (6).
3. The flatbed automobile brake inspection station of claim 1, wherein: the inner ring surface of the cover ring (7) is concavely provided with a spherical concave surface around the spherical center of the guide ball (6).
4. The flatbed automobile brake inspection station of claim 1, wherein: the connecting bolt (8) and the blocking bolt (9) are both countersunk bolts.
5. A flat plate type automobile brake inspection platform according to any one of claims 1-4, wherein: the detection assembly comprises a weighing sensor (17) fixed on the rack (1) and a rotating body (18) arranged on the weighing sensor (17) and contacted with the bottom of the brake bedplate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921702478.3U CN210533718U (en) | 2019-10-12 | 2019-10-12 | Flat plate type automobile brake inspection bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921702478.3U CN210533718U (en) | 2019-10-12 | 2019-10-12 | Flat plate type automobile brake inspection bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210533718U true CN210533718U (en) | 2020-05-15 |
Family
ID=70607549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921702478.3U Expired - Fee Related CN210533718U (en) | 2019-10-12 | 2019-10-12 | Flat plate type automobile brake inspection bench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210533718U (en) |
-
2019
- 2019-10-12 CN CN201921702478.3U patent/CN210533718U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200515 Termination date: 20211012 |