CN201121578Y - Circular conical surface transmission oil pump - Google Patents
Circular conical surface transmission oil pump Download PDFInfo
- Publication number
- CN201121578Y CN201121578Y CNU2007200646940U CN200720064694U CN201121578Y CN 201121578 Y CN201121578 Y CN 201121578Y CN U2007200646940 U CNU2007200646940 U CN U2007200646940U CN 200720064694 U CN200720064694 U CN 200720064694U CN 201121578 Y CN201121578 Y CN 201121578Y
- Authority
- CN
- China
- Prior art keywords
- outer end
- driving shaft
- conical
- drive shaft
- conical surface
- 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 - Lifetime
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Abstract
A conical surface transmission oil pump comprises a pump body (1), a pump bonnet (2), a drive shaft (3), a drive gear (4), a transmission gear (5) and a nut (8). The outer end of the drive shaft (3) is provided with a conical section (31) and a screw thread section (32) which are installed in the axle holes of the pump body (1) and the pump bonnet (2), the drive gear (4) is installed in the middle part of the drive shaft (3), the inner hole of the transmission gear (5) is a conical bore which is suitable for the conical section (31) at the outer end of the drive shaft (3), and the transmission gear (5) is installed at the outer end of the drive shaft (3) through a ring washer (7) and the nut (8). A conical surface transmission structure is adopted in the utility model, thereby eliminating the clearance between the shaft and the hole, improving the friction torque and the driver torque for jointing the conical hole and the cone, and improving the ability for bearing impulse load, improving the connecting strength and the shearing resistance capability by being pressed by an enlarged nut, and improving the reliability, the security and the service life for the motion of the drive shaft.
Description
Technical field
The utility model relates to a kind of gear type oil pump, particularly a kind of conical surface driver oil pump that can improve reliability, Security and the shear resistance of driving shaft motion.
Background technique
The structure of existing gear type oil pump as shown in Figure 1, it comprises the pump housing 1, pump cover 2, driving shaft 3, driving gear 4, driving gear 5 and screw 6, the outer end of driving shaft 3 is circular, it is installed in the axis hole of the pump housing 1 and pump cover 2, driving gear 4 is installed in the middle part of driving shaft 3, the endoporus of driving gear 5 is a circular hole, and it is installed in the outer end of driving shaft 3 by screw 6 and ring washer 7.When oil pump turned round, its driving torque contacted with driving shaft 3 end faces by hole end surface in the driving gear 5, and the friction torque that compresses generation by screw 6 drives.Because the roughness of hole end surface and driving shaft 3 end faces is difficult to control in the driving gear 5, and the displacement of the radial clearance between driving shaft 3 and driving gear 5 endoporus, the transverse shearing force that produces when adding transmission and the high frequency microseism that forms, add according to the generation and the expansion of screw 6 stress, when stress surpassed the ultimate strength that screw 6 can bear, screw 6 can fracture and is caused serious Accident due to quality.
Summary of the invention
The purpose of this utility model is the above-mentioned deficiency that overcomes on the prior art, and provide a kind of conical surface driver oil pump, the kind of drive of driving shaft and driving gear is improved, improves friction torque and driving torque, improve reliability, Security and the shear resistance of driving shaft motion.
The technical solution of the utility model is: a kind of conical surface driver oil pump, it comprises the pump housing, pump cover, driving shaft, driving gear and driving gear, there is conical section the outer end of driving shaft, it is installed in the axis hole of the pump housing and pump cover, driving gear is installed in the middle part of driving shaft, the conical bore that the endoporus of driving gear adapts for the conical section with the driving shaft outer end, it is installed in the outer end of driving shaft.
The further technological scheme of the utility model is: the outer end of driving shaft also has thread section, and driving gear is installed in the outer end of driving shaft by ring washer and nut.
The utility model is owing to adopt the conical surface drive mechanism, eliminated the gap between driving shaft and the driving gear endoporus, the friction torque and the driving torque of the taper hole and conical surface applying and the ability of the load that withstands shocks have been improved, use adds big nut and compresses, improve join strength and shear resistance, improved reliability, Security and the working life of driving shaft motion.
Below in conjunction with the drawings and specific embodiments structure of the present utility model is further described.
Description of drawings
Fig. 1 is the structural representation of existing gear type oil pump;
Fig. 2 is a structural representation of the present utility model.
Embodiment
As shown in Figure 2, conical surface driver oil pump comprises the pump housing 1, pump cover 2, driving shaft 3, driving gear 4, driving gear 5 and nut 8, there are conical section 31 and thread section 32 in the outer end of driving shaft 3, it is installed in the axis hole of the pump housing 1 and pump cover 2, driving gear 4 is installed in the middle part of driving shaft 3, the conical bore that the endoporus of driving gear 5 adapts for the conical section 31 with the outer end of driving shaft 3, it is installed in the outer end of driving shaft 3 by ring washer 7 and nut 8.
Claims (2)
1, a kind of conical surface driver oil pump, it comprises the pump housing, pump cover, driving shaft, driving gear and driving gear, driving shaft is installed in the axis hole of the pump housing and pump cover, driving gear is installed in the middle part of driving shaft, there is conical section the outer end that it is characterized in that driving shaft, the conical bore that the endoporus of driving gear adapts for the conical section with the driving shaft outer end, it is installed in the outer end of driving shaft.
2, conical surface driver oil pump according to claim 1 is characterized in that the outer end of driving shaft also has thread section, and driving gear is installed in the outer end of driving shaft by ring washer and nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200646940U CN201121578Y (en) | 2007-10-10 | 2007-10-10 | Circular conical surface transmission oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200646940U CN201121578Y (en) | 2007-10-10 | 2007-10-10 | Circular conical surface transmission oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201121578Y true CN201121578Y (en) | 2008-09-24 |
Family
ID=40008804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200646940U Expired - Lifetime CN201121578Y (en) | 2007-10-10 | 2007-10-10 | Circular conical surface transmission oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201121578Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113373559A (en) * | 2020-03-09 | 2021-09-10 | 卓郎纺织解决方案两合股份有限公司 | Torque transmission device |
-
2007
- 2007-10-10 CN CNU2007200646940U patent/CN201121578Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113373559A (en) * | 2020-03-09 | 2021-09-10 | 卓郎纺织解决方案两合股份有限公司 | Torque transmission device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hengshan Gear Co., Ltd. Assignor: Hunan Oil Pump Co., Ltd. Contract record no.: 2011430000248 Denomination of utility model: Circular conical surface transmission oil pump Granted publication date: 20080924 License type: Exclusive License Record date: 20111024 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080924 |
|
| CX01 | Expiry of patent term |