CN201173264Y - Cam combined shaft for electric motor vehicle front drum brake - Google Patents
Cam combined shaft for electric motor vehicle front drum brake Download PDFInfo
- Publication number
- CN201173264Y CN201173264Y CNU2008200333230U CN200820033323U CN201173264Y CN 201173264 Y CN201173264 Y CN 201173264Y CN U2008200333230 U CNU2008200333230 U CN U2008200333230U CN 200820033323 U CN200820033323 U CN 200820033323U CN 201173264 Y CN201173264 Y CN 201173264Y
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- CN
- China
- Prior art keywords
- cam
- combined shaft
- boss
- vehicle front
- positive stop
- 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 relates to a cam combined shaft used for the front hub brake of an electric vehicle, which belongs to the field of the cam combining shaft installed on the front hub brake of the electric vehicle. The cam combined shaft (6) is formed into an integrated part with a cam (1), a limiting dummy club (2), a cylindrical shaft (3), a square dummy club (4) and a threaded shaft (5), wherein, the upper part of the limiting dummy club (2) is connected with the cam (1), and the lower part of the limiting dummy club (2) is connected with the cylindrical shaft (3); the cylindrical shaft (3) is connected with the square dummy club (4) at the lower part of the cylindrical shaft (3); the square dummy club (4) is connected with the threaded shaft (5) at the lower part of the square dummy club (4), and all parts are symmetrically arranged on the vertical centre shaft line of the cam combined shaft (6). The cam combined shaft has the advantages that the positioning is precise, the disordering motion can not occur, and the manufacture is easy.
Description
Technical field:
The utility model cam combined shaft for electric vehicle front hub brake relates to the cam combined shaft field that is installed on the electric motor car front hub.
Background technique:
The structure of its cam of camshaft of in the past installing on electric vehicle front hub brake often directly is connected with cylinder axis, and like this, camshaft just may produce play in lining, thereby, make camshaft can not promote contact pin on the drum lock shoe plate effectively, influence braking effect.
Summary of the invention:
The purpose of this utility model provides a kind of cam combined shaft for electric vehicle front hub brake, and cam combined shaft is made into the integral cam built-up shaft by cam, positive stop lug boss, cylinder axis, square boss and thread spindle.
A kind of cam combined shaft for electric vehicle front hub brake, cam combined shaft is formed integral piece by cam, positive stop lug boss, cylinder axis, square boss and thread spindle, it is characterized in that positive stop lug boss top is connected with cam, and the positive stop lug boss bottom is connected with cylinder axis; Cylinder axis is connected with the square boss of bottom; Side's boss is connected with the thread spindle of bottom, and the equal balanced configuration of described each several part is on cam combined shaft vertical centre axis.
The utility model cam combined shaft for electric vehicle front hub brake is after drive side's boss rotates under the rocking arm rotation, then the cam on top just can promote the contact pin on the left and right hoof piece of electric vehicle front hub brake, the outer friction material of hoof piece is directly rubbed mutually with the wheel hub inwall, the electric motor car front-wheel is braked.
The utility model cam combined shaft for electric vehicle front hub brake structure and shape are described as follows:
This cam combined shaft for electric vehicle front hub brake is formed integral piece by cam, positive stop lug boss, cylinder axis, square boss and thread spindle, the cam on top is connected with the positive stop lug boss of bottom, positive stop lug boss is connected with cylinder axis, and cylinder axis is connected with square boss, and square boss is connected with thread spindle.
Cam is flat cuboid piece, both sides are circular arc, be that section is an oval shape, under driving, the rocking arm on the side's of being installed in boss rotates, the circular arc-like block of cam both sides promotes the contact pin on the preceding drum of the electric motor car lock hoof piece, left and right hoof piece is opened to both sides, and then left and right friction material is braked the electric vehicle hub inwall, wheel brake before realizing.
Positive stop lug boss is connected with the cam bottom vertical, and positive stop lug boss is the sheet round boss, and left and right contact pin is being held in the palm on positive stop lug boss top, and the bottom places the lining upper end of electric vehicle front hub brake, makes the unlikely upper and lower displacement play that has of cam combined shaft.
Vertical being connected of positive stop lug boss on cylinder axis and top, cylinder axis is installed in the lining of electric vehicle front hub brake, can rotate in lining.
Side's boss is a square block, and square boss top is connected with cylinder axis is vertical, and the bottom is connected with thread spindle, the square hole of rocking arm one end can be installed on square boss, behind the line pulling rocking arm of stopping, can be under rocking arm rotates, drive whole cam combined shaft and rotate, make cam promote two side tabs and rotate.
Vertical being connected of square boss on thread spindle and top, tightening nut is installed on thread spindle, the side's of making boss is fastened in the square hole of electric vehicle front hub brake rocker arm.
Above-mentioned cam, positive stop lug boss, cylinder axis, square boss and thread spindle all are on same the axis, and balanced configuration constitutes cam combined shaft on axis.
This cam combined shaft for electric vehicle front hub brake advantage is a compact structure, and the location accurately can play, makes easily.
Description of drawings:
Fig. 1: be this cam combined shaft for electric vehicle front hub brake 6 schematic three dimensional views.
Fig. 2: be this cam combined shaft for electric vehicle front hub brake 6 main schematic representation of looking.
Fig. 3: for looking schematic representation in this cam combined shaft for electric vehicle front hub brake 6 left sides.
Fig. 4: be this cam combined shaft for electric vehicle front hub brake 6 schematic top plan view.
Embodiment:
Referring to Fig. 1, Fig. 2 and Fig. 3, this cam combined shaft for electric vehicle front hub brake 6 is made up of cam 1, positive stop lug boss 2, cylinder axis 3, square boss 4 and thread spindle 5, and the each part mentioned above balanced configuration is in cam combined shaft 6 vertical centre axis both sides.
As shown in Figure 1, cam 1 is flat cuboid, and its both sides are circular arc, and its cross section is the oval tee section.2 vertical being connected of positive stop lug boss on cam 1 and top, the diameter between the cam 1 both sides circular arc equals the diameter of positive stop lug boss 2, and positive stop lug boss 2 is a round boss, cam 1 both sides arc surface and tangent the linking into an integrated entity of positive stop lug boss 2 outer peripheral surfaces.
As Fig. 1, Fig. 2 and shown in Figure 3, cylinder axis 3 is connected with positive stop lug boss 2 bottom vertical, and the diameter of cylinder axis 3 is less than the diameter of positive stop lug boss 2.
Referring to Fig. 1, Fig. 2 and Fig. 3, square boss 4 and 3 vertical being connected of cylinder axis, and, be connected to the bottom nose circle face of cylinder axis 3 on the square boss 4 in the bottom plane.
The lower bottom plane is vertical is connected for thread spindle 5 and square boss 4.
Claims (6)
1, a kind of cam combined shaft for electric vehicle front hub brake, cam combined shaft (6) is formed integral piece by cam (1), positive stop lug boss (2), cylinder axis (3), square boss (4) and thread spindle (5), it is characterized in that positive stop lug boss (2) top is connected with cam (1); Positive stop lug boss (2) bottom is connected with cylinder axis (3); Cylinder axis (3) is connected with the square boss (4) of its underpart; Side's boss (4) is connected with the thread spindle (5) of its underpart, and the equal balanced configuration of described each several part is on the vertical centre axis of cam combined shaft (6).
2, a kind of cam combined shaft for electric vehicle front hub brake according to claim 1 is characterized in that cam (1) is flat cuboid, and both sides are arc-shaped surface, and cam (1) cross section is the oval tee section.
3, a kind of cam combined shaft for electric vehicle front hub brake according to claim 1, vertical being connected of positive stop lug boss (2) that it is characterized in that cam (1) and bottom, positive stop lug boss (2) is a round boss, cam (1) both sides arc surface and tangent the linking into an integrated entity of positive stop lug boss (2) outer peripheral surface.
4, a kind of cam combined shaft for electric vehicle front hub brake according to claim 1 is characterized in that the diameter of the diameter of the cylinder axis (3) that is connected with positive stop lug boss (2) bottom vertical less than positive stop lug boss (2).
5, a kind of cam combined shaft for electric vehicle front hub brake according to claim 1 is connected to the bottom nose circle face of cylinder axis (3) in the side's of it is characterized in that boss (4) bottom plane, top.
6, a kind of cam combined shaft for electric vehicle front hub brake according to claim 1 is characterized in that thread spindle (5) and square boss (4) vertical being connected of lower bottom plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200333230U CN201173264Y (en) | 2008-03-20 | 2008-03-20 | Cam combined shaft for electric motor vehicle front drum brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200333230U CN201173264Y (en) | 2008-03-20 | 2008-03-20 | Cam combined shaft for electric motor vehicle front drum brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201173264Y true CN201173264Y (en) | 2008-12-31 |
Family
ID=40200383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200333230U Expired - Fee Related CN201173264Y (en) | 2008-03-20 | 2008-03-20 | Cam combined shaft for electric motor vehicle front drum brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201173264Y (en) |
-
2008
- 2008-03-20 CN CNU2008200333230U patent/CN201173264Y/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081231 Termination date: 20100320 |