CN101799011A - Vehicle vacuum pump - Google Patents
Vehicle vacuum pump Download PDFInfo
- Publication number
- CN101799011A CN101799011A CN200910028266A CN200910028266A CN101799011A CN 101799011 A CN101799011 A CN 101799011A CN 200910028266 A CN200910028266 A CN 200910028266A CN 200910028266 A CN200910028266 A CN 200910028266A CN 101799011 A CN101799011 A CN 101799011A
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- CN
- China
- Prior art keywords
- vacuum pump
- vehicle
- rotating shaft
- rotor
- vehicle vacuum
- 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.)
- Pending
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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a vehicle vacuum pump, which belongs to a brake system device of a motor vehicle. The vehicle vacuum pump solves the problem of a vacuum pump used in a motor vehicle brake system that the common gear fit connection between the rotor and a driving rotating shaft makes an inner gear ring in the centre of the rotator and an outer gear ring on the periphery of the power rotating shaft susceptible to wear and therefore causes drive failure and the problem of an improved patent that the technical scheme that the matched and connected section of the rotor and the drive rotating shaft is an equilateral polygon leads to high manufacturing process requirements, difficult alignment in processing and consequently low qualification rate and inconvenient assembly or disassembly. The vehicle vacuum pump is characterized in that a flat key connection mode is adopted between the rotator of the vacuum pump and the power rotating shaft thereof. The vehicle vacuum pump adopts an optimal technical scheme that a common A-shaped flat key with two semi-round ends is used for connection. The vehicle vacuum pump achieves the effects of high yield of manufacturing and process and convenient assembly and disassembly.
Description
Technical field
The invention belongs to a kind of motor vehicle braking systems device, particularly a kind of vehicle vacuum pump.
Background technique
Existing motor vehicle braking systems with the rotor of vacuum pump with mostly be gear matched being connected of power shaft and connect, pointed in Chinese patent CN 200620099288.3, be arranged at the ring gear of rotor center and the external toothing of power shaft periphery and wear and tear easily, finally cause transmission failure.And the section that is connected of the rotor of Chinese patent CN 200620099288.3 disclosed vacuum pumps and power shaft is the technological scheme of regular polygon, though reached preferable transmission efficiency and less wear rate in force, but the periphery fabrication and processing technological requirement to the regular polygon endoporus of rotor center and supporting with it power shaft is quite high, difficult in the processing to neutrality, thereby up-to-standard rate is low; And this be connected in concrete assembling or the dismounting also inconvenient.This shows that design a kind of fabrication and processing up-to-standard rate height, assembly and disassembly vehicle vacuum pump easily is necessary.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, design a kind of fabrication and processing up-to-standard rate height, assembly and disassembly is vehicle vacuum pump easily.
The object of the present invention is achieved like this: a kind of vehicle vacuum pump, comprise the rotor of being located in the pump housing, and it is characterized in that vacuum pump rotor and its power shaft employing flat key connecting mode that is connected.The flat key connecting mode is to be widely used in highi degree of accuracy, high-speed and variable load and impact occasion in the present Machine Design, and course of working is good to neutrality, and simple load and unload typical case connects.
In order to reach fabrication and processing up-to-standard rate height, assembly and disassembly is effect easily, and best-of-breed technology scheme of the present invention is: adopt the key two ends to be the common A type flat key and the supporting with it corresponding keyway of being located on rotor center and the power shaft of half garden shape.
Description of drawings
Fig. 1 is the schematic representation that meets thematic structure of the present invention; Fig. 2 is the schematic representation of the common A type flat key of half garden shape for two ends.
Embodiment
As shown in Figure 1, a kind of vehicle vacuum pump comprises the rotor of being located in the pump housing (1), it is characterized in that vacuum pump rotor and its power shaft (2) the employing flat key connecting mode that is connected.Employing key two ends as shown in Figure 2 are the common A type flat key of half garden shape and the supporting with it corresponding keyway connection of being located on rotor center and the power shaft is the best-of-breed technology scheme.
Claims (2)
1. vehicle vacuum pump comprises the rotor of being located in the pump housing (1), it is characterized in that vacuum pump rotor and its power shaft (2) the employing flat key connecting mode that is connected.
2. a kind of vehicle vacuum pump according to claim 1 is characterized in that one of described flat key connecting mode adopts the key two ends to be the common A type flat key and the supporting with it corresponding keyway of being located on rotor center and the power shaft of half garden shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910028266A CN101799011A (en) | 2009-02-05 | 2009-02-05 | Vehicle vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910028266A CN101799011A (en) | 2009-02-05 | 2009-02-05 | Vehicle vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101799011A true CN101799011A (en) | 2010-08-11 |
Family
ID=42594824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910028266A Pending CN101799011A (en) | 2009-02-05 | 2009-02-05 | Vehicle vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101799011A (en) |
-
2009
- 2009-02-05 CN CN200910028266A patent/CN101799011A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Deng Shude Document name: Notification that Application Deemed to be Withdrawn |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100811 |