CN202790413U - Hydraulic pump gear - Google Patents
Hydraulic pump gear Download PDFInfo
- Publication number
- CN202790413U CN202790413U CN 201220358120 CN201220358120U CN202790413U CN 202790413 U CN202790413 U CN 202790413U CN 201220358120 CN201220358120 CN 201220358120 CN 201220358120 U CN201220358120 U CN 201220358120U CN 202790413 U CN202790413 U CN 202790413U
- Authority
- CN
- China
- Prior art keywords
- hydraulic pump
- gear
- teeth
- transmission
- pump gear
- 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 discloses a hydraulic pump gear which comprises a cylinder. The cylinder is provided with an outside disk which is flawless and is subjected to rust-proof treatment, a plurality of teeth are arranged at the peripheral edge of the disk respectively, a toothed groove is arranged between each two adjacent teeth, and arced chamfers are arranged on two sides of the bottom of each toothed groove respectively; and the cylinder is provided with a stepped axial through hole, and the disk is provided with a plurality of holes. The hydraulic pump gear is compact in structure, high in precision, high in transmission efficiency and long in service life, and normal operation of a hydraulic pump is guaranteed. Weight of the gear is reduced by providing the holes, and accordingly the hydraulic pump gear is small in load, low in vibration, low in noise and stable in rotation speed in transmission operation process. In addition, the arced chamfers are arranged in the toothed grooves, and accordingly meshing compactness among the teeth is enhanced, transmission is improved and transmission is more stable and reliable.
Description
Technical field
The utility model relates to the part field of oil hydraulic pump, specifically a kind of hydraulic pump gear.
Background technique
Oil hydraulic pump is the dynamical element of hydraulic system, and its effect is the pressure energy that the mechanical energy of prime mover is converted to liquid, refers to the oil pump in the hydraulic system, and it provides power to whole hydraulic system.The structural type of oil hydraulic pump generally has gear pump, vane pump and plunger pump.
Gear is the inner common gearing parts of oil hydraulic pump.The gear of existing oil hydraulic pump mounted inside vibrates larger in the course of the work, produces a large amount of noises when causing work, for a long time can be so that the wearing and tearing between the gear be larger, and transmission occurs loosening, thereby has influence on the normal operation of oil hydraulic pump.
The model utility content
The purpose of this utility model provides a kind of hydraulic pump gear, alleviates the weight of gear, makes its load in the transmission operation process little, vibrates littlely, and rotating speed is steady; In addition, arc angling is set in teeth groove, strengthens the tightness that meshes between the gear, to improve the transmission effect.
The technical solution of the utility model is as follows:
A kind of hydraulic pump gear, include cylindrical shell, it is characterized in that: the outside of described cylindrical shell has by surperficial zero defect and carries out antirust processing wheel disc, edge, surrounding around wheel disc has respectively a plurality of gear teeth, have teeth groove between adjacent two gear teeth, the both sides of described teeth groove bottom land are respectively equipped with arc angling; Described cylindrical shell is provided with step-like axial hole, and described wheel disc is provided with a plurality of perforates.
Described hydraulic pump gear is characterized in that: described a plurality of perforates be distributed in radially step-like axial hole around.
The beneficial effects of the utility model:
The utility model compact structure, precision is high, and transmission efficiency is high, long service life, gear and axle assembling are fixed on the axle, and are installed in the gear chamber, have guaranteed the normal operation of oil hydraulic pump; And a plurality of perforates on it have alleviated the weight of gear, make its load in the transmission operation process little, vibrate littlely, and noise is low, and rotating speed is steady; In addition, arc angling is set in teeth groove, has strengthened the tightness that meshes between the gear, improved the transmission effect, so that transmission more steadily, reliably.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the sectional view of the utility model structure.
Embodiment
Referring to accompanying drawing, a kind of hydraulic pump gear, include cylindrical shell 1, the outside of cylindrical shell 1 has by surperficial zero defect and carries out antirust processing wheel disc 2, edge, surrounding around wheel disc 2 has respectively a plurality of gear teeth 3, have teeth groove 4 between adjacent two gear teeth, the both sides of teeth groove 4 bottom lands are respectively equipped with arc angling 5; Cylindrical shell 1 is provided with step-like axial hole 6, and wheel disc 2 is provided with a plurality of perforates 7.
In the utility model, a plurality of perforates 7 be distributed in radially step-like axial hole 6 around.
Claims (2)
1. hydraulic pump gear, include cylindrical shell, it is characterized in that: the outside of described cylindrical shell has by surperficial zero defect and carries out antirust processing wheel disc, edge, surrounding around wheel disc has respectively a plurality of gear teeth, have teeth groove between adjacent two gear teeth, the both sides of described teeth groove bottom land are respectively equipped with arc angling; Described cylindrical shell is provided with step-like axial hole, and described wheel disc is provided with a plurality of perforates.
2. hydraulic pump gear according to claim 1 is characterized in that: described a plurality of perforates be distributed in radially step-like axial hole around.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220358120 CN202790413U (en) | 2012-07-23 | 2012-07-23 | Hydraulic pump gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220358120 CN202790413U (en) | 2012-07-23 | 2012-07-23 | Hydraulic pump gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202790413U true CN202790413U (en) | 2013-03-13 |
Family
ID=47817679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220358120 Expired - Fee Related CN202790413U (en) | 2012-07-23 | 2012-07-23 | Hydraulic pump gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202790413U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488744A (en) * | 2018-12-30 | 2019-03-19 | 江阴市科安传动机械有限公司 | Space flight and aviation fuel pump mirror surface gear and its processing technology |
-
2012
- 2012-07-23 CN CN 201220358120 patent/CN202790413U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488744A (en) * | 2018-12-30 | 2019-03-19 | 江阴市科安传动机械有限公司 | Space flight and aviation fuel pump mirror surface gear and its processing technology |
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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: 20130313 Termination date: 20130723 |