CN201461397U - Transmission structure of hydraulic gear pump and motor - Google Patents
Transmission structure of hydraulic gear pump and motor Download PDFInfo
- Publication number
- CN201461397U CN201461397U CN2009200904284U CN200920090428U CN201461397U CN 201461397 U CN201461397 U CN 201461397U CN 2009200904284 U CN2009200904284 U CN 2009200904284U CN 200920090428 U CN200920090428 U CN 200920090428U CN 201461397 U CN201461397 U CN 201461397U
- Authority
- CN
- China
- Prior art keywords
- gear pump
- motor
- shaft
- hydraulic
- transmission structure
- 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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- Hydraulic Motors (AREA)
- Rotary Pumps (AREA)
Abstract
The utility model discloses a transmission structure of a hydraulic gear pump and a motor and aims to provide a transmission structure of a hydraulic gear pump and a motor respectively provided with a gear pump shaft and a motor shaft with high concentricity and stable operation. The gear pump shaft is a spline shaft matched with an axial spline hole of a motor rotor; a shell at the end of the gear pump provided with a shaft is provided with a flange which is connected with a flange at one end of the motor; and key slots matched with splines are arranged on the axial hole walls of the gear pump and the motor rotor. Compared with the prior art, the gear pump shaft and the motor shaft have high concentricity and stable operation, and the utility model is suitable for hydraulic pumps.
Description
Technical field:
The utility model relates to a kind of shaft joint, the drive mechanism of particularly a kind of hydraulic gear pump and motor.
Background technique:
The mode that is in transmission connection of hydraulic gear pump and motor, what adopt at present is that shaft joint connects, its shortcoming is that the concentricity of motor and gear pump shaft should not guarantee that run stability is relatively poor.
Summary of the invention:
The purpose of this utility model provides concentricity high and the turn round stable hydraulic gear pump and the drive mechanism of motor between a kind of gear pump shaft and the motor shaft.The technical solution of the utility model is, the drive mechanism of a kind of hydraulic gear pump and motor, comprise gear pump shaft, it is characterized in that: gear pump shaft is that the axial Hua Jian hole of splined shaft and rotor matches, and the housing that gear pump is established axle one end is provided with flange and is connected by the flange of screw with motor one end.Be equipped with keyway on the gear pump axis body and on the axial hole wall of rotor and spline matches.The utility model has the advantage that coaxality is high and running is stable of gear pump shaft and motor shaft compared with the prior art.
Description of drawings:
Accompanying drawing is the structural representation of the drive mechanism of the utility model hydraulic gear pump and motor.
Embodiment:
In conjunction with above accompanying drawing the utility model is described, existing gear pump shaft connects by shaft joint with motor shaft, the shortcoming of this connecting structure is, coaxality is difficult for guaranteeing, run stability is relatively poor, and occupation area is big, for addressing the above problem, motor 1 rotor center is an axial bore, end at this axial bore is provided with a step hole, the inner that hydraulic gear pump is 3 has the step hole cunning in a step and the axial hole of above-mentioned rotor to join, and a termination of this mekydro pump shaft places the axial bore of rotor, and spline 2 places the spline in hydraulic pump shaft and the axial hole of rotor.The mekydro pump shaft is that splined shaft and rotor spline axial bore match.One end of motor and an end of hydraulic gear pump respectively are provided with a flange, are connected by screw.Another embodiment of the present utility model is that the mekydro pump shaft is that the splined hole of splined shaft and rotor matches.
Claims (2)
1. the drive mechanism of hydraulic gear pump and motor, comprise gear pump shaft, it is characterized in that: gear pump shaft is that the axial Hua Jian hole of splined shaft and rotor matches, and the housing that gear pump is established axle one end is provided with flange and is connected by the flange of screw with motor one end.
2. the drive mechanism of a kind of hydraulic gear pump as claimed in claim 1 and motor is characterized in that: be equipped with keyway on the gear pump axis body and on the axial hole wall of rotor and spline matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200904284U CN201461397U (en) | 2009-05-13 | 2009-05-13 | Transmission structure of hydraulic gear pump and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200904284U CN201461397U (en) | 2009-05-13 | 2009-05-13 | Transmission structure of hydraulic gear pump and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201461397U true CN201461397U (en) | 2010-05-12 |
Family
ID=42388751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200904284U Expired - Fee Related CN201461397U (en) | 2009-05-13 | 2009-05-13 | Transmission structure of hydraulic gear pump and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201461397U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256220A (en) * | 2013-05-07 | 2013-08-21 | 中联重科股份有限公司 | Gear pump and engineering machine |
| CN106015167A (en) * | 2016-07-13 | 2016-10-12 | 哈威油液压技术（上海）有限公司 | Hydraulic pump station of gear pump |
-
2009
- 2009-05-13 CN CN2009200904284U patent/CN201461397U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256220A (en) * | 2013-05-07 | 2013-08-21 | 中联重科股份有限公司 | Gear pump and engineering machine |
| CN103256220B (en) * | 2013-05-07 | 2016-04-20 | 中联重科股份有限公司 | Gear pump and engineering machinery |
| CN106015167A (en) * | 2016-07-13 | 2016-10-12 | 哈威油液压技术（上海）有限公司 | Hydraulic pump station of gear pump |
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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: 20100512 Termination date: 20120513 |