CN201106645Y - Off-centering wheel axis of electric vehicle servant brake with left outwards convex pressboard - Google Patents
Off-centering wheel axis of electric vehicle servant brake with left outwards convex pressboard Download PDFInfo
- Publication number
- CN201106645Y CN201106645Y CNU2007200423285U CN200720042328U CN201106645Y CN 201106645 Y CN201106645 Y CN 201106645Y CN U2007200423285 U CNU2007200423285 U CN U2007200423285U CN 200720042328 U CN200720042328 U CN 200720042328U CN 201106645 Y CN201106645 Y CN 201106645Y
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- CN
- China
- Prior art keywords
- straight line
- pressing plate
- evagination
- eccentric shaft
- eccentric
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- Expired - Fee Related
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Abstract
An eccentric shaft of a follow-up brake of an electric motor car, which is provided with a pressure plate with the left protruding outwards, relates to an eccentric shaft installed on the left shoe plate of the follow-up brake of the electric motor car. The bottom of the left of an eccentric wheel (2) of the eccentric shaft (1) is provided with an extended pressure plate (3) which protrudes outwards, the upper part of the eccentric wheel (2) is provided with a circular shaft (4), a square lug boss (5) and a threaded shaft (6) which are vertically connected into a whole; the included angle Beta between a left straight line edge (7) and the horizontal center line of the eccentric wheel (2) is equal to 70 to 85 DEG, and the included angle Alpha between an upper straight line edge (8) and the bottom straight line edge of the eccentric wheel (2) is equal to 4 to 10 DEG, and the upper straight line edge (8) is connected with a right straight line edge (9) in fold line. The eccentric shaft has the advantages that the eccentric shaft can prevent the right shoe plate of the follow-up brake from dumping upwards, and the security for travelling crane is ensured.
Description
Technical field:
The eccentric shaft that the utility model electric motor car servant brake has left side evagination pressing plate relates to the eccentric shaft that is installed on the shoe plate of an electric motor car servant brake left side.
Background technique:
Left shoe plate upper end at general electric motor car servant brake will install eccentric shaft additional, during brake, promotes the contact pin of right shoe plate upper end, right shoe plate is opened, drive left shoe plate then and open, realize the skidding function, but when general eccentric shaft promotes on the right shoe plate end piece, right shoe plate upper end is gone up jumps, thereby, can not promote right shoe plate and open and brake, therefore, install an evagination pressing plate additional under the eccentric wheel of the eccentric shaft that should install additional in left shoe plate upper end, jump on the right shoe plate preventing.But the geometrical form of the evagination pressing plate under the eccentric wheel of the eccentric shaft that is installed additional, should be able to be in the maximum weighted point place of jumping on the right shoe plate, rather than general position, therefore, should specialized designs have the eccentric shaft of left side evagination pressing plate, and make its lifting surface area maximum.
Summary of the invention:
The purpose of this utility model provides the eccentric shaft that a kind of electric motor car servant brake has left side evagination pressing plate, and remaining eccentric shaft structure is identical with common eccentric shaft.
A kind of electric motor car servant brake has the eccentric shaft of left side evagination pressing plate, it is characterized in that eccentric shaft (1) has the evagination pressing plate (3) of extension in eccentric wheel (2) left bottom, has the all-in-one-piece circular shaft (4) that vertically is connected, square boss (5) and thread spindle (6) on eccentric wheel (2) top.
The utility model electric motor car servant brake has the eccentric shaft of left side evagination pressing plate, with general electric motor car servant brake design difference be that eccentric wheel bottom design at eccentric shaft has the evagination pressing plate of extension to the left, rotate when promoting on the right shoe plate end piece with convenient eccentric shaft, the evagination pressing plate in its left side can pressed right shoe plate upper end, to prevent jumping, thereby having guaranteed that right shoe plate opens carries out braking brake, and right shoe plate and left shoe plate are in the same plane open, and unlikely going up jumped, and makes brake failure.
Eccentric shaft structure and shape that this electric motor car servant brake has left side evagination pressing plate are described as follows:
This electric motor car servant brake has the eccentric shaft of left side evagination pressing plate by eccentric wheel, left side evagination pressing plate, circular shaft, side's boss and thread spindle are formed integral piece, eccentric shaft is threaded onto in the eccentric shaft lining of left shoe plate, its left side evagination pressing plate is positioned at the eccentric wheel bottom, be connected with the evagination extension of eccentric wheel bottom, on eccentric wheel top the all-in-one-piece circular shaft that vertically is connected is arranged, side's boss and thread spindle, circular shaft is installed in the servant brake fuse-box eccentric shaft lining, at the square boss that the circular shaft upper vertical links to each other is to match with the square hole of crank throw on the servant brake, when the line pulling crank throw of stopping rotates, eccentric shaft is rotated, brake; Be connected with thread spindle on square boss top, be used for installing nut, so that the square hole end of crank throw is positioned on the eccentric shaft.
Be in when its left side evagination pressing plate of the eccentric shaft of evagination pressing plate was worked on the left of the utility model electric motor car servant brake had and jump the force bearing point place on the right shoe plate, can prevent from effectively to jump the assurance safe driving on the right shoe plate of servant brake.
Description of drawings:
Fig. 1: eccentric shaft (1) schematic three dimensional views that has left side evagination pressing plate for this electric motor car servant brake.
Fig. 2: the main schematic representation of looking of eccentric shaft (1) that has left side evagination pressing plate for this electric motor car servant brake.
Fig. 3: schematic representation is looked on eccentric shaft (a 1) left side that has left side evagination pressing plate for this electric motor car servant brake.
Fig. 4: eccentric shaft (1) schematic top plan view that has left side evagination pressing plate for this electric motor car servant brake.
Embodiment:
Referring to Fig. 1 and Fig. 2:
The eccentric shaft (1) of evagination pressing plate had the evagination pressing plate (3) of extension on the left of the utility model electric motor car servant brake had in eccentric wheel (2) left bottom, evagination pressing plate (3) is a surface plate, evagination pressing plate (3) is gone up side bottom circular arc limit by eccentric wheel (2), the bottom straight line, the left straight line (7) of evagination pressing plate (3), top straight line (8) and right straight line (9) enclose structure and form, the horizontal center line angle β of left side straight line (7) and eccentric wheel (2)=70 °～85 °, angle α=4 ° between the straight line of top straight line (8) and eccentric wheel (2) bottom～10 °, the left straight line (7) of evagination pressing plate (3) is connected by transition arc with top straight line (8), and top straight line (8) is broken line with right straight line (9) and is connected.
Referring to Fig. 3, eccentric wheel (2) is with circular shaft (4), square boss (5) and thread spindle (6) is vertical mutually is connected, place the horizontal center line both sides symmetrically, constitute the eccentric shaft (1) that this electric motor car servant brake has left side evagination pressing plate with evagination pressing plate (3).
Claims (3)
1, a kind of electric motor car servant brake has the eccentric shaft of left side evagination pressing plate, it is characterized in that eccentric shaft (1) has the evagination pressing plate (3) of extension in eccentric wheel (2) left bottom, has the all-in-one-piece circular shaft (4) that vertically is connected, square boss (5) and thread spindle (6) on eccentric wheel (2) top.
2, a kind of electric motor car servant brake according to claim 1 has the eccentric shaft of left side evagination pressing plate, it is characterized in that evagination pressing plate (3) is a surface plate, evagination pressing plate (3) encloses structure by left straight line (7), top straight line (8) and the right straight line (9) of side bottom circular arc limit, bottom straight line, evagination pressing plate (3) on the eccentric wheel (2) and forms.
3, a kind of electric motor car servant brake according to claim 1 has the eccentric shaft of left side evagination pressing plate, it is characterized in that the horizontal center line angle β of left straight line (7) and eccentric wheel (2)=70 °～85 °, angle α=4 ° between the straight line of top straight line (8) and eccentric wheel (2) bottom～10 °, the left straight line (7) of evagination pressing plate (3) is connected by transition arc with top straight line (8), and top straight line (8) is broken line with right straight line (9) and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200423285U CN201106645Y (en) | 2007-11-19 | 2007-11-19 | Off-centering wheel axis of electric vehicle servant brake with left outwards convex pressboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200423285U CN201106645Y (en) | 2007-11-19 | 2007-11-19 | Off-centering wheel axis of electric vehicle servant brake with left outwards convex pressboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201106645Y true CN201106645Y (en) | 2008-08-27 |
Family
ID=39958446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200423285U Expired - Fee Related CN201106645Y (en) | 2007-11-19 | 2007-11-19 | Off-centering wheel axis of electric vehicle servant brake with left outwards convex pressboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201106645Y (en) |
-
2007
- 2007-11-19 CN CNU2007200423285U patent/CN201106645Y/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: 20080827 Termination date: 20101119 |