CN210118401U - Locking sleeve for adjusting arm - Google Patents
Locking sleeve for adjusting arm Download PDFInfo
- Publication number
- CN210118401U CN210118401U CN201920931779.7U CN201920931779U CN210118401U CN 210118401 U CN210118401 U CN 210118401U CN 201920931779 U CN201920931779 U CN 201920931779U CN 210118401 U CN210118401 U CN 210118401U
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- hole
- locking
- cylindrical sleeve
- adjustment arm
- sleeve
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Abstract
The utility model discloses an adjustment arm locking cover, its characterized in that: for metal cold heading spare, including cylindrical sleeve, cylindrical sleeve's excircle surface is equipped with a semicircle cylindric lock arch, and cylindrical sleeve's hole divide into upper, middle and lower three-section, and lower section hole has the biggest unthreaded hole aperture, and the interlude hole has minimum unthreaded hole aperture, and the unthreaded hole pore wall of upper segment hole is equipped with interior flower tooth, and the number of teeth of interior flower tooth is not less than 12. The utility model is used for locking of brake adjustment arm after brake clearance adjustment accomplishes, simple structure, locking is reliable fast, and the brake clearance change is little during locking.
Description
Technical Field
The utility model relates to an auto-parts, concretely relates to adjustment arm locking cover of using in brake adjustment arm.
Background
The function of the brake adjusting arm is to accurately record the increase of the clearance due to the wear of the friction lining and to adjust the brake clearance to a normal working range. After the worm in the brake adjusting arm is used for adjusting the adjusting arm, the worm shaft needs to be locked through the locking sleeve, so that the gap change of a brake is prevented. The lock adjusting arm stop sleeve in the prior art cannot realize the quick and reliable locking of the worm shaft, and the brake clearance can be greatly changed during the locking.
Disclosure of Invention
In view of the not enough of background art, the utility model aims at providing a locking that is used for brake adjustment arm after brake clearance adjustment accomplishes, simple structure, locking is reliable fast, and the little adjustment arm locking cover of brake clearance change during locking.
The utility model adopts the following technical proposal to complete:
adjustment arm locking cover, its characterized in that: for metal cold heading spare, including cylindrical sleeve, cylindrical sleeve's excircle surface is equipped with a semicircle cylindric lock arch, and cylindrical sleeve's hole divide into upper, middle and lower three-section, and lower section hole has the biggest unthreaded hole aperture, and the interlude hole has minimum unthreaded hole aperture, and the unthreaded hole pore wall of upper segment hole is equipped with interior flower tooth, and the number of teeth of interior flower tooth is not less than 12.
Above-mentioned technical scheme's adjustment arm locking cover, the movable worm shaft hole of business turn over adjustment arm after the installation, worm shaft hole is equipped with the semicircle pinhole that matches with locking cover semicircle round pin arch on the circumference, guarantee that the locking cover can not produce circumferential direction after getting into worm shaft hole, the worm axle activity of adjustment arm passes locking cover hole, the axle diameter of worm axle matches the interlude hole of locking cover, the outside axle head of worm axle is equipped with the interior flower tooth that the outer flower tooth corresponds the locking cover, the lower section hole spring of packing into of locking cover. The utility model discloses a concrete application method of adjustment arm locking cover is: when the brake clearance needs to be adjusted, the locking sleeve is pushed inwards to enable the locking sleeve to be away from the shaft end of the worm shaft, so that the inner spline teeth and the outer spline teeth are separated from meshing, the worm shaft can be rotated to adjust the brake clearance at the moment, after the adjustment is completed, the worm shaft is rotated at a small angle to enable the outer spline teeth at the shaft end of the worm shaft to be aligned with the inner spline teeth of the locking sleeve, the locking sleeve is loosened, the locking sleeve can be automatically ejected out under the action of the spring, the inner spline teeth and the outer spline teeth are meshed again, and the locking sleeve can quickly and reliably lock the worm; in the process, the number of the internal spline teeth is large, and the worm shaft can be aligned with the external spline teeth of the locking sleeve only by small circumferential rotation after adjustment is completed, so that the braking gap change is small during locking.
Preferably, the height of the semi-cylindrical pin protrusion is equal to the height of the cylindrical sleeve, and the upper end surface and the lower end surface of the semi-cylindrical pin protrusion are inclined surfaces.
Preferably, the height of the internal spline is equal to the depth of the internal hole of the upper section, and the top surface of the internal spline is of an inclined design.
Drawings
The utility model discloses there is following figure:
figure 1 is a top view in the direction of the present invention,
fig. 2 is a view a-a of fig. 1.
Detailed Description
As shown in the figure, the utility model discloses an adjustment arm locking cover, for the metal cold-heading piece, including cylindrical sleeve 1, cylindrical sleeve 1's excircle surface is equipped with a semicircle round pin arch 2, semicircle round pin arch 2 corresponds with the semicircle pinhole that adjustment arm worm shaft hole was equipped with on the circumference, cylindrical sleeve 1's hole divide into upper, middle and lower three-section, lower section hole 6 has the biggest unthreaded hole aperture, a spring for packing into, interlude hole 5 has the minimum unthreaded hole aperture, in order to match the axle footpath of adjustment arm worm shaft, the unthreaded hole pore wall of upper segment hole 4 is equipped with interior flower tooth 3, in order to match the outer flower tooth that adjustment arm shaft outside axle head was equipped with, the number of teeth of interior flower tooth 3 is not less than twelve. Protruding 2 highly equals cylindrical sleeve 1's height of semicircle cylindric lock, and the bellied upper and lower terminal surface of semicircle cylindric lock is the inclined plane, and interior flower tooth 3 highly equals the degree of depth of section hole 4 above, and the top surface of interior flower tooth 3 has the slope design.
Claims (3)
1. Adjustment arm locking cover, its characterized in that: for metal cold heading spare, including cylindrical sleeve, cylindrical sleeve's excircle surface is equipped with a semicircle cylindric lock arch, and cylindrical sleeve's hole divide into upper, middle and lower three-section, and lower section hole has the biggest unthreaded hole aperture, and the interlude hole has minimum unthreaded hole aperture, and the unthreaded hole pore wall of upper segment hole is equipped with interior flower tooth, and the number of teeth of interior flower tooth is not less than 12.
2. The adjustment arm locking sleeve as set forth in claim 1, wherein: the height of the semi-cylindrical pin is equal to that of the cylindrical sleeve, and the upper end face and the lower end face of the semi-cylindrical pin are inclined planes.
3. The adjustment arm locking sleeve as set forth in claim 1, wherein: the height of the inner spline teeth is equal to the depth of the inner hole of the upper section, and the top surfaces of the inner spline teeth are designed in an inclined mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920931779.7U CN210118401U (en) | 2019-06-20 | 2019-06-20 | Locking sleeve for adjusting arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920931779.7U CN210118401U (en) | 2019-06-20 | 2019-06-20 | Locking sleeve for adjusting arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210118401U true CN210118401U (en) | 2020-02-28 |
Family
ID=69615965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920931779.7U Active CN210118401U (en) | 2019-06-20 | 2019-06-20 | Locking sleeve for adjusting arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210118401U (en) |
-
2019
- 2019-06-20 CN CN201920931779.7U patent/CN210118401U/en active Active
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