CN211924453U - Transmission shaft double-support type double gear pump - Google Patents
Transmission shaft double-support type double gear pump Download PDFInfo
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- CN211924453U CN211924453U CN202020299619.8U CN202020299619U CN211924453U CN 211924453 U CN211924453 U CN 211924453U CN 202020299619 U CN202020299619 U CN 202020299619U CN 211924453 U CN211924453 U CN 211924453U
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- gear
- driving gear
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Abstract
The utility model belongs to the hydraulic equipment in the machinery trade, in particular to transmission shaft dual bracing formula duplicate gear pump. The transmission shaft is axially arranged at the center in the front pump cover, a bearing mounting groove is formed in the left end of the front pump cover, a deep groove ball bearing is arranged in the bearing mounting groove in interference fit with the transmission shaft, the front driving gear is in meshed transmission connection with the front driven gear, the front driving gear and the front driven gear are arranged in the front pump body through a side plate and a sliding bearing, the right end shaft of the front driving gear is connected with the rear driving gear through a spline, the front pump body and the front pump cover are positioned through a cylindrical pin II and fixed through a bolt I, and the rear pump body and the front pump body, the rear pump body and the rear cover are positioned through the cylindrical pin I and fixed through the bolt. After the gear pump is connected with a power takeoff, the gear pump runs at a high speed to work and generate a certain radial load. This structure can bear certain radial load, and the dual bracing transmission shaft, transmission performance is stable, and the installation is dismantled conveniently, improves the life of gear pump.
Description
Technical Field
The utility model belongs to the hydraulic equipment in the machinery trade, in particular to transmission shaft dual bracing formula duplicate gear pump.
Background
At present, the gear pump of domestic and international application is more, and in mechanical industry, a ball bearing of installation is as supporting on the transmission shaft of gear pump usually, and the transmission shaft and the power takeoff erection joint back of gear pump have the transmission shaft unbalanced, radial bearing capacity etc. long-time work back, can make the oil blanket inner lip wearing and tearing of gear pump serious, the oil blanket inefficacy, lead to the pump oil leak and damage.
Disclosure of Invention
An object of the utility model is to overcome above-mentioned technique not enough, provide one kind and can bear radial load, transmission stable performance improves the transmission shaft double bracing formula double gear pump in the life-span of pump.
The utility model provides a technical scheme that technical problem adopted is: the transmission shaft double-support type double gear pump comprises a transmission shaft, a front driving gear, a front driven gear, a rear driving gear, a rear driven gear, a front pump cover, a front pump body, a rear pump body and a rear cover, and is characterized in that the transmission shaft is axially arranged at the center in the front pump cover, a bearing installation groove is arranged in the left end of the front pump cover, a deep groove ball bearing is arranged in the bearing installation groove in interference fit with the transmission shaft, the left end surface of the deep groove ball bearing is fixed by a shaft check ring and a hole check ring I, a framework oil seal is arranged between the inner hole of the front pump cover and the outer circumference of the transmission shaft, the left and right end surfaces of the framework oil seal are fixed by a hole check ring II and a hole check ring III, a bearing baffle is arranged on the periphery of the transmission shaft on the right side surface of the hole check ring III, a sliding bearing I is, the front driving gear is fixedly connected with the spline shaft in the spline type inner hole, the front driving gear is in meshing transmission connection with the front driven gear, the front driving gear and the front driven gear are arranged in the front pump body through a side plate and a sliding bearing, the right end shaft of the front driving gear is connected with the rear driving gear through a spline, the rear driving gear is in meshing transmission connection with the rear driven gear, the rear driving gear and the rear driven gear are arranged in the rear pump body through a seat ring, the front pump body and the front pump cover are positioned through a cylindrical pin II and fixed through a bolt I, and the rear pump body and the front pump body, the rear pump body and the rear cover are positioned through the cylindrical pin I and fixed through.
The utility model has the advantages that: the transmission shaft double-support type duplex gear pump is characterized in that a deep groove ball bearing and a sliding bearing are simultaneously installed on a transmission shaft, and after the gear pump is installed and connected with a power takeoff, the gear pump operates at a high speed to generate a certain radial load. This structure can bear certain radial load, and the dual bracing transmission shaft, transmission performance is stable, and the installation is dismantled conveniently, improves the life of gear pump.
Drawings
The following description is made in detail by way of example with reference to the accompanying drawings.
Fig. 1 is a sectional view showing a structure of a dual gear pump of a drive shaft dual support type.
Fig. 2 is an enlarged view of the structure of the propeller shaft of fig. 1.
In the figure: 1-a transmission shaft; 2-deep groove ball bearing; 3-front pump cover; 4-framework oil seal; 5-bearing baffle; 6-sliding bearing one; 7-a front drive gear; 8-a retainer ring for a shaft; 9-a first hole retainer ring; 10-a second retainer ring for holes; 11-retainer ring three for hole; 12-a front driven gear; 13-front pump body; 14-side plates; 15-bolt one; 16-a gasket; 17-sliding bearing two; 18-a rear drive gear; 19-a first cylindrical pin; 20-rear pump body; 21-a seat ring; 22-sealing barrier strip one; 23-bolt two; 24-a circlip; 25-rear cover; 26-rear driven gear; 27-a first sealing ring; 28-sealing strip one; 29-sealing barrier strip II; 30-sealing strip II; 31-a second sealing ring; 32-cylindrical pin two.
Detailed Description
In the embodiment, referring to fig. 1 and 2, a transmission shaft mounting hole is formed in the center of the inner side of a front pump cover 3 of the transmission shaft double-support type double-gear pump, a transmission shaft 1 is installed in the transmission shaft mounting hole, a bearing mounting groove is formed in the left side face of the front pump cover 3, a deep groove ball bearing 2 is installed in the bearing mounting groove and in interference fit with the transmission shaft 1, and the left end face of the deep groove ball bearing 2 is fixed through a shaft retaining ring 8 and a hole retaining ring I9. A framework oil seal 4 is arranged between an inner hole of the front pump cover 3 and the periphery of the transmission shaft 1, a hole check ring II 10 is used for positioning the left side face of the framework oil seal 4, a hole check ring III 11 and a bearing baffle 5 are used for limiting and fixing the right side face, and a sliding bearing I6 is arranged on the periphery of the right end head of the transmission shaft 1 on the right side face of the bearing baffle 5. The right end head of the transmission shaft 1 is provided with a spline type inner hole, a front driving gear 7 with a spline shaft is fixedly connected with the spline type inner hole, the front driving gear 7 is in meshing transmission connection with a front driven gear 12, the front driving gear 7 and the front driven gear 12 are arranged in inner cavities of a front pump body 13 and a front pump cover 3 through a side plate 14 and a sliding bearing II 17, the front pump cover 3 and the front pump body 13 are positioned through a cylindrical pin II 32, and are fastened together through a gasket 16 and a bolt I15. And a sealing strip II 30 and a sealing barrier strip II 29 are used for sealing between the side plates 14 on the left side and the right side and the inner cavity wall of the front pump body 13, and a sealing ring II 31 is used for sealing between the side plates 14 and the right side wall of the front pump cover 3. The rear driving gear 18 is connected with the inner hole of the right end of the shaft of the front driving gear 7 through a spline, the rear driving gear 18 is in meshed transmission connection with the rear driven gear 26, and the rear driving gear 18 and the rear driven gear 26 are arranged in the inner cavity of the rear pump body 20 through a seat ring 21. The front pump body 13 and the rear pump cover 25 are positioned by a cylindrical pin I19 and fixed by an elastic washer 24 and a bolt II 23, the left end face of the seat ring 21 and the right end face of the front pump body 13 are sealed by a sealing strip I28, the left end face of the rear pump body 20 and the right end face of the front pump body 13 are sealed by a sealing ring I27, and the right side face of the rear pump body 20 and the rear pump cover 25 are sealed by a sealing barrier strip I22.
The utility model discloses a theory of operation is: after the transmission shaft of the transmission shaft double-support type double gear pump is connected with the power takeoff, the spline shaft in the power takeoff drives the transmission shaft 1 of the gear pump to rotate, the internal spline of the transmission shaft 1 is connected with the external spline of the front driving gear 7 to rotate, and the gear pump enters a working state. The front end of the transmission shaft 1 is provided with a deep groove ball bearing 2, the rear end of the transmission shaft is provided with a sliding bearing I6, and the transmission shaft 1 rotates under the support of the two bearings. And a bearing baffle 5, a second hole retainer ring 10 and a third hole retainer ring 11 are arranged on the end surface of the bearing to prevent the bearing baffle from moving. A framework oil seal 4 is arranged in the front pump cover 3 to prevent the oil inside the pump from leaking outwards.
Claims (1)
1. A transmission shaft double-support type dual gear pump comprises a transmission shaft (1), a front driving gear (7), a front driven gear (12), a rear driving gear (18), a rear driven gear (26), a front pump cover (3), a front pump body (13), a rear pump body (20) and a rear cover (25), and is characterized in that the transmission shaft (1) is axially arranged at the center in the front pump cover (3), a bearing installation groove is arranged in the left end of the front pump cover (3), a deep groove ball bearing (2) is arranged in the bearing installation groove in interference fit with the transmission shaft (1), the left end surface of the deep groove ball bearing (2) is fixed with a hole check ring I (9) through a shaft check ring (8), a framework oil seal (4) is arranged between the inner hole of the front pump cover (3) and the outer circumference of the transmission shaft (1), the left and right end surfaces of the framework oil seal (4) are fixed with a hole check ring II (10) and a hole check ring III, a bearing baffle plate (5) is arranged on the periphery of a transmission shaft (1) on the right side surface of a hole retainer ring III (11), a sliding bearing I (6) is arranged on the periphery of the right end of the transmission shaft (1) on the right side surface of the bearing baffle plate (5), a spline type inner hole is arranged at the right end head of the transmission shaft (1), a front driving gear (7) with a spline shaft is fixedly connected with the spline type inner hole, the front driving gear (7) is in meshing transmission connection with a front driven gear (12), the front driving gear (7) and the front driven gear (12) are arranged in a front pump body (13) through a side plate (14) and a sliding bearing II (17), a rear driving gear (18) is connected in the right end shaft of the front driving gear (7) through a spline, the rear driving gear (18) is in meshing transmission connection with a rear driven gear (26), the rear driving gear (18) and the rear driven gear, the front pump body (13) and the front pump cover (3) are positioned by a second cylindrical pin (32) and fixed by a first bolt (15), and the rear pump body (20) and the front pump body (13) and the rear pump body (20) and the rear cover (25) are positioned by a first cylindrical pin (19) and fixed by a second bolt (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020299619.8U CN211924453U (en) | 2020-03-12 | 2020-03-12 | Transmission shaft double-support type double gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020299619.8U CN211924453U (en) | 2020-03-12 | 2020-03-12 | Transmission shaft double-support type double gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211924453U true CN211924453U (en) | 2020-11-13 |
Family
ID=73347875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020299619.8U Active CN211924453U (en) | 2020-03-12 | 2020-03-12 | Transmission shaft double-support type double gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211924453U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114483576A (en) * | 2022-03-01 | 2022-05-13 | 绍兴威格隆泵业有限公司 | External magnetic driving double-screw pump |
-
2020
- 2020-03-12 CN CN202020299619.8U patent/CN211924453U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114483576A (en) * | 2022-03-01 | 2022-05-13 | 绍兴威格隆泵业有限公司 | External magnetic driving double-screw pump |
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