CN204213300U - A kind of engine air pump gear - Google Patents
A kind of engine air pump gear Download PDFInfo
- Publication number
- CN204213300U CN204213300U CN201420637370.1U CN201420637370U CN204213300U CN 204213300 U CN204213300 U CN 204213300U CN 201420637370 U CN201420637370 U CN 201420637370U CN 204213300 U CN204213300 U CN 204213300U
- Authority
- CN
- China
- Prior art keywords
- gear
- air pump
- axis hole
- hub
- ring
- 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
Links
- 238000009434 installation Methods 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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- Rotary Pumps (AREA)
Abstract
The utility model discloses a kind of engine air pump gear, comprise gear and gear ring, described gear ring and gear are integral type structure, the middle part of described gear raises up the gear hub be formed higher than gear ring end face, an axially through axis hole is provided with at the center of gear hub, the hole wall of described axis hole offers keyway, be provided with the circular groove communicated with axis hole in the bottom of gear hub, described gear has equally distributed four through holes of ring-type in the arranged outside of gear hub.The utility model when mounted, the through hole can holding gear makes circular groove towards air pump rotating shaft, and make axis hole aim at air pump rotating shaft, speed and convenience for gear is installed in air pump rotating shaft, and keyway and key coordinate the installation more firm stable made between gear and air pump rotating shaft.
Description
Technical field
The utility model relates to gear technique field, more particularly, particularly relates to a kind of engine air pump gear.
Background technique
At present, motor because of joined vehicle and machinery needs and be equipped with air pump, along with the development of engine technology, gear-driven air pump is gradually adopted to replace the air pump of conventional belt transmission, gear transmission technology assembles air pump gear in the rotating shaft of air pump, air pump gear usually engages each other with air pump driving gear, by air pump driving gear by transmission of power to air pump gear thus the work of driving air pump.But existing engine air pump gear ubiquity installs the problem of inconvenience.
Model utility content
The purpose of this utility model is for above-mentioned the deficiencies in the prior art, provides a kind of engine air pump gear easy for installation.
For achieving the above object, engine air pump gear provided by the utility model, comprise gear and gear ring, described gear ring and gear are integral type structure, the middle part of described gear raises up the gear hub be formed higher than gear ring end face, an axially through axis hole is provided with at the center of gear hub, the hole wall of described axis hole offers keyway, be provided with the circular groove communicated with axis hole in the bottom of gear hub, described gear has equally distributed four through holes of ring-type in the arranged outside of gear hub.
The utility model when mounted, the through hole can holding gear makes circular groove towards air pump rotating shaft, and make axis hole aim at air pump rotating shaft, speed and convenience for gear is installed in air pump rotating shaft, and keyway and key coordinate the installation more firm stable made between gear and air pump rotating shaft.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the sectional view along A-A line in Fig. 1.
In figure: 1-gear; 11-through hole; 2-gear ring; 3-gear hub; 31-axis hole; 32-keyway; 33-circular groove.
Embodiment
Below in conjunction with the embodiment in accompanying drawing, the utility model is described in further detail, but do not form any restriction of the present utility model.
Consult shown in Fig. 1 and Fig. 2, a kind of engine air pump gear provided by the utility model, comprises gear 1 and gear ring 2, and described gear ring 2 is integral type structure with gear 1, and the thickness of the Thickness Ratio gear 1 of gear ring 2 is large.
The middle part of described gear 1 raises up the gear hub 3 be formed higher than gear ring 2 end face, an axially through axis hole 31 is provided with at the center of gear hub 3, the hole wall of described axis hole 31 offers keyway 32, the circular groove 33 communicated with axis hole 31 is provided with in the bottom of gear hub 3, the shaft axis of described circular groove 33 overlaps with the shaft axis of axis hole 31, and the radius of circular groove 33 is greater than the radius of axis hole 31.
Described gear 1 has equally distributed four through holes 11 of ring-type in the arranged outside of gear hub 3, the design of through hole 11 not only can alleviate the weight of gear itself, and axis hole 31, keyway 32, circular groove 33 and gear ring 2 can be processed as the datum hole of locating and machining, ensure the processing of gear and the precision of installation.
When mounted, the through hole 11 that installation personnel can hold gear makes circular groove 33 towards air pump rotating shaft, and make axis hole 31 aim at air pump rotating shaft, speed and convenience for gear is installed in air pump rotating shaft, and keyway 32 and key coordinate the installation more firm stable made between gear and air pump rotating shaft.
Claims (3)
1. an engine air pump gear, comprise gear and gear ring, described gear ring and gear are integral type structure, it is characterized in that: the middle part of described gear raises up the gear hub be formed higher than gear ring end face, an axially through axis hole is provided with at the center of gear hub, the hole wall of described axis hole offers keyway, be provided with the circular groove communicated with axis hole in the bottom of gear hub, described gear has equally distributed four through holes of ring-type in the arranged outside of gear hub.
2. engine air pump gear according to claim 1, is characterized in that: the thickness of the Thickness Ratio gear of described gear ring is large.
3. engine air pump gear according to claim 1, it is characterized in that: the shaft axis of the circular groove bottom described gear hub overlaps with the shaft axis of axis hole, and the radius of circular groove is greater than the radius of axis hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420637370.1U CN204213300U (en) | 2014-10-30 | 2014-10-30 | A kind of engine air pump gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420637370.1U CN204213300U (en) | 2014-10-30 | 2014-10-30 | A kind of engine air pump gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204213300U true CN204213300U (en) | 2015-03-18 |
Family
ID=52981973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420637370.1U Expired - Fee Related CN204213300U (en) | 2014-10-30 | 2014-10-30 | A kind of engine air pump gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204213300U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864394A (en) * | 2016-06-22 | 2016-08-17 | 陈开� | Gear with dust storage function |
| CN107725729A (en) * | 2017-11-14 | 2018-02-23 | 北京大圣格尔冶金设备有限公司 | A kind of gear |
-
2014
- 2014-10-30 CN CN201420637370.1U patent/CN204213300U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864394A (en) * | 2016-06-22 | 2016-08-17 | 陈开� | Gear with dust storage function |
| CN107725729A (en) * | 2017-11-14 | 2018-02-23 | 北京大圣格尔冶金设备有限公司 | A kind of gear |
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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: 20150318 |