CN205806288U - Resistance worm screw and the braking adjusting-arm of composition thereof - Google Patents
Resistance worm screw and the braking adjusting-arm of composition thereof Download PDFInfo
- Publication number
- CN205806288U CN205806288U CN201620621769.XU CN201620621769U CN205806288U CN 205806288 U CN205806288 U CN 205806288U CN 201620621769 U CN201620621769 U CN 201620621769U CN 205806288 U CN205806288 U CN 205806288U
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- CN
- China
- Prior art keywords
- worm screw
- locking
- gear
- worm
- housing
- Prior art date
- 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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Abstract
The utility model discloses a kind of resistance worm screw and the braking adjusting-arm of composition thereof, resistance worm screw includes that worm screw, the end face of described worm screw are resistance area, and described resistance area is provided with locking teeth, the rotation direction of described locking teeth is oppositely oriented with described worm screw, and described locking teeth includes several chisel teeths；Braking adjusting-arm includes that housing, worm screw bearing pin, worm gear, locking device, described worm screw bearing pin are arranged in described pin shaft hole, and described housing is provided with locking hole, and described locking hole is connected with described pin shaft hole, and described locking device is installed in described locking hole；Being arranged with Flos Mume gear and worm screw on described worm screw bearing pin, described Flos Mume gear is positioned at and the described pin shaft hole of described locking hole intersection, and described worm screw is connected with described worm-drive.The resistance area of worm screw helps solve the problem that the reversion of worm screw bearing pin retreats, further by locking device and the cooperation of Flos Mume gear so that the worm pin axial length time is in locking state.
Description
Technical field
This utility model relates to auto parts machinery, a kind of resistance worm screw and the braking adjusting-arm of composition thereof.
Background technology
Automobile is during using, and braking can cause the continuous abrasion of braking member frequently, so that brake drum
And the gap between friction plate increases, cause pedal travel instability, skidding sensitivity decrease, face when wearing clearance exceedes
Resulting even in brake failure during boundary's point, this is accomplished by needing to adjust this gap according to driving by braking adjusting-arm.The most often
Way be by worm gearing drive adjust axial adjustment gap, adjust complete by extruding hoodle extruding locking
Hoodle locking worm screw.But this pair of pearl adjusts mode and there is the loosening skidding of hoodle, can not lock worm screw completely, and worm shaft is easily because coming
The external force of self-adjusting axis hole and the phenomenon that retreats, it is impossible to the problem solving not tight screw shaft well.
Utility model content
For the shortcoming of prior art, this utility model provides a kind of resistance worm screw and the braking adjusting-arm of composition thereof.
For achieving the above object, the technical solution of the utility model is resistance worm screw, including worm screw, the end face of described worm screw
For resistance area, described resistance area being provided with locking teeth, the rotation direction of described locking teeth is oppositely oriented with described worm screw, described anti-
Pine tooth includes that several chisel teeths, described chisel teeth include domatic, the wedge shape flank of tooth, Caused by Sloping Surfaces, described domatic, the wedge shape flank of tooth
Pass sequentially through upper seamed edge with Caused by Sloping Surfaces by seamed edge and lower seamed edge is connected in space and sprawls.
In this utility model one embodiment, described locking teeth is radially sent out to the direction away from worm screw axle center along described worm screw
Dissipate.
In this utility model one embodiment, the Caused by Sloping Surfaces of chisel teeth intersects at basal edge with the upper domatic of adjacent chisel teeth
Limit, the level height on described basal edge limit is successively decreased along worm screw radially away from worm screw axis direction.
In this utility model one embodiment, the level height of the described wedge shape flank of tooth along worm screw radially away from worm screw axle center
Direction is incremented by.
Braking adjusting-arm, including adjusting the housing of arm, worm screw bearing pin, worm gear, locking device, described worm screw bearing pin is with described
Housing is detachably fixed connection, and described worm gear fixedly mounts on the housing, and described housing is provided with pin shaft hole, described snail
Lever pin axle is arranged in described pin shaft hole, and described housing is provided with locking hole, and described locking hole is connected with described pin shaft hole,
Described locking device is installed in described locking hole；Flos Mume gear and worm screw, described Flos Mume tooth it is arranged with on described worm screw bearing pin
Wheel is positioned at and the described pin shaft hole of described locking hole intersection, and described worm screw is connected with described worm-drive.
In this utility model one embodiment, described locking device includes locking pearl, Flexible Connector, fixture successively,
Described fixture is detachably fixed and is installed on described locking hole, and described locking hole is arranged on the institute the most perpendicular with pin shaft hole
State on housing.
In this utility model one embodiment, one end of described worm screw bearing pin is provided with nut, on described worm screw bearing pin also
Being arranged with ring washer, described ring washer is between described nut and described Flos Mume gear.
In this utility model one embodiment, described housing being provided with adjustment axis hole, described worm gear is positioned at adjustment axis hole
In, the housing at the two ends of described adjustment axis hole is all installed with dust-proof fixing cover.
This utility model has the advantages that
Help solve the problem that the reversion of worm screw bearing pin retreats, by the tooth to chisel teeth by arranging resistance area on worm screw
Shape and the design of angle so that worm screw when locking state and adjust between arm housing relatively rotate and become difficulty,
Increase the resistance of reversion；Further by locking device and the cooperation of Flos Mume gear so that the worm pin axial length time is in lock
Tight state, locking pearl can firmly snap in the arc groove of Flos Mume tooth between cog, will not occur because of matter of time locking pearl displacement
The problem skidded is until adjustment next time.
Accompanying drawing explanation
Fig. 1 is the front view of this utility model worm gear；
Fig. 2 is the sectional view of this utility model worm gear；
Fig. 3 is the front view of this utility model worm gear；
Fig. 4 is the enlarged drawing in this utility model Fig. 3 at B；
Fig. 5 is the front view of this utility model worm screw bearing pin；
Fig. 6 is the sectional view at this utility model worm screw bearing pin A-A；
Fig. 7 is the assembling schematic diagram of this utility model Flos Mume gear and locking pearl；
Fig. 8 is the sectional view of this utility model Flos Mume gear；
Fig. 9 is the sectional view of this utility model housing；
Figure 10 is a kind of upward view of this utility model housing；
Figure 11 is the axonometric chart of this utility model housing；
Figure 12 is explosive view of the present utility model.
1, housing；2, worm screw bearing pin；3, worm gear；200, pin shaft hole；400, locking hole；500, axis hole is adjusted；4, locking pearl；
5, spring；6, fixture；7, Flos Mume gear；8, worm screw；9, nut；10, ring washer；11, dust-proof fixing cover.800, resistance
Face；22, chisel teeth；201, upper domatic；203, Caused by Sloping Surfaces；202, the wedge shape flank of tooth；33, upper seamed edge；44, lower seamed edge；55, basal edge
Limit.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing (1 to 11), the utility model will be further described.
Resistance worm screw, including worm screw 8, the end face of described worm screw 8 is resistance area 800, described resistance area 800 is provided with anti-
Pine tooth, the rotation direction of described locking teeth is oppositely oriented with described worm screw 8, described locking teeth along described worm screw 8 radial direction to away from snail
The directional divergence in bar 8 axle center.Described locking teeth includes that several chisel teeths 22, described chisel teeth 22 include domatic 201, wedge shape
The flank of tooth 202, Caused by Sloping Surfaces 203, described domatic 201, the wedge shape flank of tooth 202 and Caused by Sloping Surfaces 203 pass sequentially through upper seamed edge by seamed edge
33 and lower seamed edge 44 be connected in three dimensions and sprawl.
The Caused by Sloping Surfaces 203 of chisel teeth 22 intersects at basal edge limit 55, described basal edge limit with upper domatic the 201 of adjacent chisel teeth 22
The level height of 55 is successively decreased along worm screw radially away from worm screw 8 axis direction；The level height of the described wedge shape flank of tooth 202 is along worm screw 8
Direction radially away from worm screw 8 axle center is incremented by.The a height of 0.2-0.4mm of chisel teeth described in this enforcement, preferably 0.3mm, can not
Damage the surface of housing, can effectively act as again increasing the purpose of resistance.
Braking adjusting-arm involved by this utility model, including adjusting the housing 1 of arm, worm screw bearing pin 2, worm gear 3, locking dress
Putting, described housing 1 is provided with pin shaft hole 200, described worm screw bearing pin 2 is detachably fixed and is arranged in described pin shaft hole 200, institute
State and on position the most perpendicular with pin shaft hole 200 on housing 1, be provided with locking hole 400, the axis of described locking hole 400 and institute
The axis stating pin shaft hole is vertical, and described worm screw bearing pin 2 is co-axially mounted with described pin shaft hole 200, described locking hole 400 and described pin
Axis hole 200 is connected, and described locking device is installed in described locking hole 400.
Described locking device includes locking pearl 4, spring 5, fixture 6 successively, and described fixture 6 is threadably secured installation
On described locking hole 400；Be arranged with Flos Mume gear 7 and worm screw 8 on described worm screw bearing pin 2, described Flos Mume gear 7 be arranged on
In the described pin shaft hole 200 of described locking hole 400 intersection, described Flos Mume gear 7 and described worm screw bearing pin 2 matched in clearance, join
Conjunction gap is 0.1-0.15mm.One end of described worm screw bearing pin 2 is provided with nut 9, and described worm screw bearing pin 2 is also arranged with annular
Packing ring 10, described ring washer 10 is between described nut 9 and described Flos Mume gear 7.
Described locking pearl 4 by spring 5 by firm compression at adjacent two between cog of described Flos Mume gear 7 so that described lock
Tight phase inscribe between pearl 4 with described Flos Mume gear 7 arbitrary neighborhood two tooth, i.e. locks the circular arc of pearl 4 between cog adjacent with Flos Mume gear 7
Structure division is tangent.The number of teeth of described Flos Mume gear is 4-40, in the present embodiment, the number of teeth selects 10, now Flos Mume gear 7
Tip diameter is 23.5mm, and a diameter of 19.5mm of root circle, i.e. root circle are mutually circumscribed with locking pearl, the diameter of locking pearl 4
For 6.3mm.
Described worm gear 3 is fixedly mounted in the adjustment axis hole 500 of described housing 1, the shell at the two ends of described adjustment axis hole 500
All being installed with dust-proof fixing cover 11 on body 1, described worm screw 8 is in transmission connection with described worm gear 3.During operation, by rotating snail
Lever pin axle 2 drives worm screw 8 to rotate, thus drives worm gear 3 to rotate being arranged on the adjustment axle adjusted on axis hole 500, and then to system
Gap between dynamic drum and friction plate is adjusted so that the braking distance of pedal is sensitive, stable.
The two ends of described spring 5 polish respectively and tightly, and one end end face of spring 5 is in close contact with described fixture 6, another
End end face tightly offsets with locking pearl 4, and the internal diameter of described spring 5 spring eye is less than the diameter of described locking pearl 4, in order to locking pearl
4 are firmly positioned at locked position.
This utility model uses Flos Mume gear 7 and the combination of locking pearl 4, by the special setting to Flos Mume gear 7, it is achieved
Lock the purpose of worm screw bearing pin 2 while ensureing worm gear bearing pin mechanical property, existing hoodle can be prevented effectively from and skid, use
The problem that life-span is low.This utility model not only makes the step adjusting gap easier, also easily facilitates associated components more
Change, reduce maintenance cost, have a wide range of applications meaning.
Above-mentioned specific embodiment is used only to illustrate this utility model, rather than is to limit this utility model,
In objective of the present utility model and scope of the claims, that makes this utility model any does not pay creative labor
Dynamic replacement and change, fall within the protection domain of this utility model patent.
Claims (8)
1. a resistance worm screw, it is characterised in that include that worm screw, the end face of described worm screw are resistance area, described resistance area sets
Being equipped with locking teeth, the rotation direction of described locking teeth is oppositely oriented with described worm screw, and described locking teeth includes several chisel teeths, institute
State chisel teeth and include that domatic, the wedge shape flank of tooth, Caused by Sloping Surfaces, described domatic, the wedge shape flank of tooth and Caused by Sloping Surfaces are led to successively by seamed edge
Cross seamed edge and lower seamed edge is connected in space and sprawls.
2. resistance worm screw as claimed in claim 1, it is characterised in that described locking teeth along described worm screw radially to away from worm screw
The directional divergence in axle center.
3. resistance worm screw as claimed in claim 1, it is characterised in that the Caused by Sloping Surfaces of chisel teeth is upper domatic with adjacent chisel teeth
Intersecting at basal edge limit, the level height on described basal edge limit is successively decreased along worm screw radially away from worm screw axis direction.
4. resistance worm screw as claimed in claim 1, it is characterised in that the level height of the described wedge shape flank of tooth is the most remote along worm screw
It is incremented by from the direction in worm screw axle center.
5. include a braking adjusting-arm for the arbitrary described resistance worm screw of claim 1-4, including adjusting the housing of arm, worm pin
Axle, worm gear, locking device, described worm screw bearing pin is detachably fixed with described housing and is connected, and described worm gear is fixedly mounted on described
On housing, it is characterised in that being provided with pin shaft hole on described housing, described worm screw bearing pin is arranged in described pin shaft hole, described
Being provided with locking hole on housing, described locking hole is connected with described pin shaft hole, and described locking device is installed on described locking hole
In；Being arranged with Flos Mume gear and worm screw on described worm screw bearing pin, described Flos Mume gear is positioned at and the institute of described locking hole intersection
Stating in pin shaft hole, described worm screw is connected with described worm-drive.
6. braking adjusting-arm as claimed in claim 5, it is characterised in that described locking device includes locking pearl, elasticity successively
Connector, fixture, described fixture is detachably fixed and is installed on described locking hole, and described locking hole is arranged on and pin shaft hole
On the most perpendicular described housing.
7. braking adjusting-arm as claimed in claim 5, it is characterised in that one end of described worm screw bearing pin is provided with nut, institute
Stating and be also arranged with ring washer on worm screw bearing pin, described ring washer is between described nut and described Flos Mume gear.
8. the braking adjusting-arm as described in claim 5-7 is arbitrary, it is characterised in that be provided with adjustment axis hole on described housing,
Described worm gear is positioned at adjustment axis hole, and the housing at the two ends of described adjustment axis hole is all installed with dust-proof fixing cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620621769.XU CN205806288U (en) | 2016-06-22 | 2016-06-22 | Resistance worm screw and the braking adjusting-arm of composition thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620621769.XU CN205806288U (en) | 2016-06-22 | 2016-06-22 | Resistance worm screw and the braking adjusting-arm of composition thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205806288U true CN205806288U (en) | 2016-12-14 |
Family
ID=57506003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620621769.XU Expired - Fee Related CN205806288U (en) | 2016-06-22 | 2016-06-22 | Resistance worm screw and the braking adjusting-arm of composition thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205806288U (en) |
-
2016
- 2016-06-22 CN CN201620621769.XU patent/CN205806288U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161214 Termination date: 20190622 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |