CN2859073Y - Worm shaft one-way clutch assembly of automatic adjusting arm for automobile brake clearance - Google Patents
Worm shaft one-way clutch assembly of automatic adjusting arm for automobile brake clearance Download PDFInfo
- Publication number
- CN2859073Y CN2859073Y CN 200520077306 CN200520077306U CN2859073Y CN 2859073 Y CN2859073 Y CN 2859073Y CN 200520077306 CN200520077306 CN 200520077306 CN 200520077306 U CN200520077306 U CN 200520077306U CN 2859073 Y CN2859073 Y CN 2859073Y
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- China
- Prior art keywords
- worm shaft
- gear
- clutch
- spring
- bearing
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 229910000831 Steel Inorganic materials 0.000 abstract description 21
- 239000010959 steel Substances 0.000 abstract description 21
- 239000000463 material Substances 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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Abstract
The utility model provides an automobile brake clearance automatic adjustment arm worm axle one way clutch assembly relates to a one way clutch. The clutch is formed by sequentially sleeving a bearing, a round steel wire spring, a gear and a clutch ring on the left side of a worm on a worm shaft, wherein the bearing is tightly matched with the worm shaft, the gear is in clearance fit with the worm shaft, one end of the round steel wire spring is pressed against the end surface of the bearing, the other end of the round steel wire spring is pressed against the end surface of an inner hole of the gear, the round steel wire spring is in clearance fit with the worm shaft, the inner end surface of the clutch ring is connected with the worm shaft through a conical jaw clutch, and saw-shaped teeth are respectively arranged on the contact surfaces of the clutch ring and the gear to form. The utility model discloses because do not use the square steel spring meshing, but utilize saw-shaped tooth freewheel separation and reunion on the contact surface of separation and reunion ring sum gear, consequently avoided a series of not enough that design problem, material problem and the quality problems brought by square steel spring. Just the utility model discloses simple structure, stable performance, processing convenience.
Description
Technical field
The utility model relates to a kind of overrunning clutch, more particularly, is a kind of overrunning clutch that is applied on the arm for adjusting automobile brake clearance automatically.
Background technique
Arm for automatically regulating clearance of brake is just extensively promoted the use of on automobile at present, its technological scheme is: have the air-leg attachment hole at an end of adjusting arm, the other end connects firmly camshaft, on described camshaft, be fixedly connected with the transmission worm gear, and there are the worm screw that is meshed with described transmission worm gear, worm shaft to be bearing on the sidewall of adjusting arm.The gap automatic adjusting mechanism adopts driving mechanism and overrunning clutch, in braking process, the gap increase is measured, in the return process by driving mechanism and overrunning clutch, the transmission worm shaft, thereby transmission worm screw, worm gear, make camshaft rotate corresponding angle, eliminate the gap that is increased, realize the automatic compensation of brake clearance.For reaching the purpose of transmission and one-way clutch, existing arm for adjusting automobile brake clearance automatically worm shaft free-wheeling assembly comprises the clutch ring, the square steel spring, gear, bearing, worm shaft, worm shaft is provided with worm screw, bearing, gear, the square steel spring, the clutch ring is enclosed within the left side of worm screw on the worm shaft successively, bearing and worm shaft closely cooperate, gear and worm shaft Spielpassung, square steel spring and worm shaft interference fit, square steel spring one end is enclosed within the bore, the other end is enclosed within the clutch ring endoporus, clutch ring interior edge face is connected by cone dog clutch with worm shaft, on the inner hole wall of clutch ring and gear, be respectively arranged with reverse each other saw shape teeth, they and square steel spring form and surmount meshing relation.This structure is proved in practice and has following defective: 1, when the square steel spring hardness is hard partially, it will produce slip with the engagement of gear, clutch ring, and engagement does not live, and can not reach self-adjusting purpose; 2, when the square steel spring hardness is on the low side, easily by plucking, cause engagement incessantly during the clutch of square steel spring, can not reach the self-regulated purpose; 3, as square steel spring material deviation is arranged, cause the square steel spring breakage easily; 4, less than normal as square steel spring external diameter, it is less than normal to produce torsion, and also can cause can not self-regulated.This shows that the design problem of square steel spring, material problem and quality problems have become the key factor that influences the arm for adjusting automobile brake clearance automatically quality.
Summary of the invention
The purpose of this utility model is to provide a kind of not user steel spring, can fundamentally stop above-mentioned defective, features simple structure, stable performance, arm for adjusting automobile brake clearance automatically worm shaft free-wheeling assembly easy to process.
Technical solution of the present utility model is: arm for adjusting automobile brake clearance automatically worm shaft free-wheeling assembly is by the clutch ring, spring, gear, bearing, worm shaft is formed, worm shaft is provided with worm screw, bearing, spring, gear, the clutch ring is enclosed within the left side of worm screw on the worm shaft successively, bearing and worm shaft closely cooperate, gear and worm shaft Spielpassung, clutch ring interior edge face is connected by cone dog clutch with worm shaft, it is characterized in that: described spring is the Round Steel Wire spring, Round Steel Wire spring one end withstands on the bearing face, withstand on the bore end face at end in addition, Round Steel Wire spring and worm shaft Spielpassung, on the surface of contact of clutch ring and gear, be respectively arranged with saw shape teeth, form overdrive clutch.
Use the utility model, in braking process, the compression of the main spring of arm for adjusting automobile brake clearance automatically, the clutch ring separates with worm shaft, and the clutch ring separates under the effect of sawtooth deboost with gear; In the return process, under the thrust of the main spring of arm for adjusting automobile brake clearance automatically, clutch ring and worm shaft engagement, under the coil component spring thrust, clutch ring and gear engagement.
The utility model since not user's steel spring respectively with the engagement of gear and clutch ring, but on the surface of contact of clutch ring and gear, saw shape teeth are set respectively, form overdrive clutch, therefore avoided a series of deficiencies of bringing by design problem, material problem and the quality problems of square steel spring.And the utility model features simple structure, stable performance, easy to process.
Description of drawings
Accompanying drawing is the utility model structural representation.
Among the figure: 1, clutch ring, 2, the Round Steel Wire spring, 3, gear, 4, bearing, 5, worm screw, 6, worm shaft.
Specific embodiments
Arm for adjusting automobile brake clearance automatically worm shaft free-wheeling assembly is by clutch ring (1), Round Steel Wire spring (2), gear (3), bearing (4), worm shaft (6) is formed, worm shaft (6) is provided with worm screw (5), bearing (4), Round Steel Wire spring (2), gear (3), clutch ring (1) is enclosed within worm screw (5) left side on the worm shaft (6) successively, bearing (4) closely cooperates with worm shaft (6), Round Steel Wire spring (2) one ends withstand on bearing (4) end face, the other end withstands on the interior hole end surface of gear (3), Round Steel Wire spring (2) and worm shaft (6) Spielpassung, gear (3) and worm shaft (6) Spielpassung, clutch ring (1) interior edge face is connected by cone dog clutch with worm shaft (6), on the surface of contact of clutch ring (1) and gear (3), be respectively arranged with saw shape teeth, form overdrive clutch.
Claims (1)
1, arm for adjusting automobile brake clearance automatically worm shaft free-wheeling assembly, it is by the clutch ring, spring, gear, bearing, worm shaft is formed, worm shaft is provided with worm screw, bearing, spring, gear, the clutch ring is enclosed within the left side of worm screw on the worm shaft successively, bearing and worm shaft closely cooperate, gear and worm shaft Spielpassung, clutch ring interior edge face is connected by cone dog clutch with worm shaft, it is characterized in that: described spring is the Round Steel Wire spring, Round Steel Wire spring one end withstands on the bearing face, withstand on the bore end face at end in addition, Round Steel Wire spring and worm shaft Spielpassung, on the surface of contact of clutch ring and gear, be respectively arranged with saw shape teeth, form overdrive clutch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520077306 CN2859073Y (en) | 2005-11-10 | 2005-11-10 | Worm shaft one-way clutch assembly of automatic adjusting arm for automobile brake clearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520077306 CN2859073Y (en) | 2005-11-10 | 2005-11-10 | Worm shaft one-way clutch assembly of automatic adjusting arm for automobile brake clearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2859073Y true CN2859073Y (en) | 2007-01-17 |
Family
ID=37611932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520077306 Expired - Fee Related CN2859073Y (en) | 2005-11-10 | 2005-11-10 | Worm shaft one-way clutch assembly of automatic adjusting arm for automobile brake clearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2859073Y (en) |
-
2005
- 2005-11-10 CN CN 200520077306 patent/CN2859073Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |