CN201235895Y - Camshaft integrated member for front hub brake of electric vehicle - Google Patents
Camshaft integrated member for front hub brake of electric vehicle Download PDFInfo
- Publication number
- CN201235895Y CN201235895Y CNU2008200405563U CN200820040556U CN201235895Y CN 201235895 Y CN201235895 Y CN 201235895Y CN U2008200405563 U CNU2008200405563 U CN U2008200405563U CN 200820040556 U CN200820040556 U CN 200820040556U CN 201235895 Y CN201235895 Y CN 201235895Y
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- shaft
- cam
- circular
- front hub
- electric vehicle
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Abstract
A camshaft integration member for a front hub brake of an electric motor car belongs to the field of a compounding camshaft which is arranged in a brake cover of a front hub brake of an electric motor car. A central shaft line of the camshaft integration member (1) is axially connected with a threaded shaft (2), a square shaft (3), a circular shaft (4), a kidney circular two-way cam (5) and a circular cover plate (7), wherein the diameter of the circular cover plate (7) is equal to the distance between both end parts of two ends of the kidney circular two-way cam (5), and the inner lateral surface of the circular cover plate (7) is connected with the kidney circular two-way cam (5). Furthermore, one end of the circular shaft (4) is connected with the outer lateral surface of the kidney circular two-way cam (5), the other end of the circular shaft (4) is connected with the square shaft (3), and the outer lateral surface of the square shaft (3) is connected with the inner lateral surface of the threaded shaft (2). The camshaft integration member for a front hub brake of an electric motor car has simple structure and reliable installation work, and can prevent shoe plates from run-up.
Description
Technical field:
The utility model integrated camshaft member for electric vehicle front hub brake relates to the combined camshaft field of installing in the electric vehicle front hub brake sluice cover.
Background technology:
Contact pin on left shoe plate and the right shoe plate in the hub lock before in electric vehicle front hub brake, often needing cam with two-way oval shape to go to promote, it is opened, but when the contact pin on the left and right shoe plate of two-way push, at this moment left and right shoe plate may upwards takeoff, and just can not reach the function of friction braking.Be to install pad by the riveted joint sheet additional to double-track cam in the past, and prevent to jump on the left and right shoe plate with pad, but this method need install the riveted joint sheet additional, and pad was riveted on the bidirectional cam, the time-consuming material that takes at camshaft one end; Another kind method is in the direct cold-heading of bidirectional cam one end pad to be arranged, but because the diameter of pad is less than the distance at bidirectional cam two ends, therefore, when bidirectional cam is pushed left and right shoe plate open, because the pad diameter is little, contact pin top that can not the left and right shoe plate both-end of gland, therefore, do not have the effect of jumping on the left and right shoe plate of preventing, promptly be equivalent on bidirectional cam, install additional pad, for overcoming above-mentioned defective, should design new integrated camshaft member for electric vehicle front hub brake.
Summary of the invention:
The purpose of this utility model provides a kind of integrated camshaft member for electric vehicle front hub brake, it is by threaded shaft, square shaft, circular shaft, oval shape bidirectional cam, the dome sheet is formed integrated camshaft member, and dome sheet diameter equals end, oval shape bidirectional cam two ends distance, can prevent to jump on the left and right shoe plate.
A kind of integrated camshaft member for electric vehicle front hub brake, integrated camshaft member is by threaded shaft, square shaft, circular shaft, oval shape bidirectional cam and dome sheet are formed, threaded shaft, square shaft, circular shaft, oval shape bidirectional cam and dome sheet vertically are disposed on the integrated camshaft member central axis, axially connect into integrated camshaft member, the diameter of described dome sheet equals the distance of end, oval shape bidirectional cam two ends, the dome sheet medial surface of outer end is connected with oval shape bidirectional cam, circular shaft one end is connected with oval shape bidirectional cam lateral surface, the other end is connected with the square shaft medial surface, and the square shaft lateral surface is connected with the threaded shaft medial surface.
The circular shaft of the utility model integrated camshaft member for electric vehicle front hub brake is installed in the lining of hub lock sluice cover, there is the circular arc cam of the identical balanced configuration of shape at the two ends of the oval shape bidirectional cam that circular shaft one side is connected, the circular arc cam at two ends is connected by the cam rectangular block of centre, constitute oval shape bidirectional cam, the semicircular arc cam at two ends can promote a left side when rotating simultaneously under crank throw drives, left side on the right shoe plate, right contact pin, make a left side, right shoe plate opens, a left side, friction lining on the fixed plate of right shoe plate rubs mutually with the motor wheel hub inwall, realization is to the braking of battery-driven car, a left side when preventing that cam from promoting contact pin, right shoe plate swashes, then should equal end, oval shape bidirectional cam two ends distance at its diameter of the inboard bonded assembly dome of oval shape bidirectional cam sheet, when guaranteeing that integrated camshaft member rotates in lining, its dome sheet just in time is pressed in a left side, the contact pin top of right shoe plate, thus a left side do not caused, right shoe plate swashes and loses the function of drag.
The circular shaft opposite side is connected with square shaft, square shaft is the square piece, and its four jiaos have the camshaft square hole of circular arc, crank throw to be sleeved on the square shaft of integrated camshaft member respectively, after crank throw rotates, the drive square shaft rotates, and then the oval shape bidirectional cam on the integrated camshaft member rotates thereupon; For crank throw one end is fitted on the described square shaft, be connected with threaded shaft in the square shaft outside, on threaded shaft, can install flange surface nut additional, crank throw one end is matched and unlikely skidding off with square shaft.
The utility model electric vehicle front hub brake is simple in structure with the cam integral piece, can be by cold-heading, milling and tapping machine-shaping, guarantee the integrated camshaft member rotation after, it is reliable and stable to brake, and does not cause left and right shoe plate to swash.
Description of drawings:
Fig. 1: be integrated camshaft member for electric vehicle front hub brake 1 schematic three dimensional views.
Fig. 2: be the cam rectangular block 6 outside schematic three dimensional views that show of the oval shape bidirectional cam 5 in the integrated camshaft member for electric vehicle front hub brake 1.
Fig. 3: be the integrated camshaft member for electric vehicle front hub brake 1 main scheme drawing of looking.
Fig. 4: for looking scheme drawing in integrated camshaft member for electric vehicle front hub brake 1 left side.
Fig. 5: be integrated camshaft member for electric vehicle front hub brake 1 schematic top plan view.
The specific embodiment:
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, in each accompanying drawing, 1 is integrated camshaft member, and 2 is threaded shaft, and 3 is square shaft, 4 is circular shaft, 5 is oval shape bidirectional cam, and 6 is the cam rectangular block, and 7 is the dome sheet, cam rectangular block 6 is positioned at the centre of oval shape bidirectional cam 5, and oval shape bidirectional cam 5 two ends are the circular arc cam of balanced configuration.
Threaded shaft 2, square shaft 3, circular shaft 4, oval shape bidirectional cam 5 and 7 balanced configurations of dome sheet are in integrated camshaft member 1 central axis both sides, and axially connect into integrated camshaft member 1.
Threaded shaft 2 has the outside thread axle of chamfering for the outer end, and threaded shaft 2 external diameters are slightly less than square shaft 3 length of sides.
Oval shape bidirectional cam 5 is made of the cam rectangular block 6 of centre and the circular arc cam at two ends, the circular arc cam equal and opposite in direction at two ends, and shape is identical, the configuration that is mutually symmetrical, the thickness of the circular arc cam at two ends equals the thickness of cam rectangular block 6.
This integrated camshaft member for electric vehicle front hub brake 1 is processed into blank through cold-heading earlier, two of milling cam rectangular block 6 rectangular surfaces that are parallel to each other again, and the cylinder axis external threading of end become threaded shaft 2, can constitute described integrated camshaft member for electric vehicle front hub brake.
Claims (5)
1, a kind of integrated camshaft member for electric vehicle front hub brake, integrated camshaft member (1) is by threaded shaft (2), square shaft (3), circular shaft (4), oval shape bidirectional cam (5) and dome sheet (7) are formed, it is characterized in that threaded shaft (2), square shaft (3), circular shaft (4), oval shape bidirectional cam (5) and dome sheet (7) vertically are disposed on integrated camshaft member (1) central axis, axially connect into integrated camshaft member (1), the diameter of described dome sheet (7) equals the distance of oval shape bidirectional cam (5) end, two ends, dome sheet (7) medial surface of outer end is connected with oval shape bidirectional cam (5), circular shaft (4) one ends are connected with oval shape bidirectional cam (5) lateral surface, the other end is connected with square shaft (3) medial surface, and square shaft (3) lateral surface is connected with threaded shaft (2) medial surface.
2, integrated camshaft member for electric vehicle front hub brake according to claim 1, it is characterized in that oval shape bidirectional cam (5) is made of the cam rectangular block (6) and the two terminal circle arc-shaped cam of centre, two terminal circle arc-shaped cam equal and opposite in direction, shape is identical, the configuration that is mutually symmetrical, the thickness of two terminal circle arc-shaped cam equals the thickness of cam rectangular block (6).
3, integrated camshaft member for electric vehicle front hub brake according to claim 1 is characterized in that square shaft (3) is the square piece, and Si Jiaochu is rounded down.
4, integrated camshaft member for electric vehicle front hub brake according to claim 1 is characterized in that circular shaft (4) is a cylindrical shaft, and circular shaft (4) external diameter is greater than the square length of side of square shaft (3).
5, integrated camshaft member for electric vehicle front hub brake according to claim 1 is characterized in that dome sheet (7) is a pancake dome sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200405563U CN201235895Y (en) | 2008-07-11 | 2008-07-11 | Camshaft integrated member for front hub brake of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200405563U CN201235895Y (en) | 2008-07-11 | 2008-07-11 | Camshaft integrated member for front hub brake of electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201235895Y true CN201235895Y (en) | 2009-05-13 |
Family
ID=40648633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200405563U Expired - Fee Related CN201235895Y (en) | 2008-07-11 | 2008-07-11 | Camshaft integrated member for front hub brake of electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201235895Y (en) |
-
2008
- 2008-07-11 CN CNU2008200405563U patent/CN201235895Y/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: 20090513 Termination date: 20120711 |