CN201836148U - Low-pulsation gear pump and gear motor integrated machine - Google Patents
Low-pulsation gear pump and gear motor integrated machine Download PDFInfo
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- CN201836148U CN201836148U CN2010205707919U CN201020570791U CN201836148U CN 201836148 U CN201836148 U CN 201836148U CN 2010205707919 U CN2010205707919 U CN 2010205707919U CN 201020570791 U CN201020570791 U CN 201020570791U CN 201836148 U CN201836148 U CN 201836148U
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Abstract
The utility model discloses a low-pulsation gear pump and gear motor integrated machine. A low-pulsation gear pump (28) is composed of a second compound gear set, a fourth compound gear set, a pump cylinder body (7), a pump end cap (8) and an intermediate casing (5), a low-pulsation gear motor (29) is composed of a first compound gear set, a third compound gear set, a motor cylinder body (4), a motor end cap (3) and the intermediate casing (5), a safety valve (6) is mounted on the intermediate casing (5), and pressure oil generated from the gear pump (28) flows into an oil inlet cavity of the gear motor (29) through a pressure oil port (25) on the intermediate casing (5) so as to drive the first compound gear set and the third compound gear set of the gear motor to rotate. The low-pulsation gear pump, the low-pulsation gear motor and the safety valve are integrated to form the low-pulsation gear pump and gear motor integrated machine which has the advantages of simple structure, light weight, convenience in installation, low price, and can be applied to machine tools, automobiles and agricultural and oilfield machinery widely.
Description
Technical field
The present invention relates to a kind of low-pulsation gear pump gear motor integrated machine, be applicable to mineral oil, emulsified liquid or water to be the system of working medium, have characteristics simple in structure, that price is low, belong to the Fluid Transmission and Control field.
Background technique
In the Fluid Transmission and Control technology, gear pump has that volume is little, in light weight, simple in structure, good manufacturability,, advantage such as suction capacity strong, selflubricating ability good insensitive to the pollution of fluid, is widely used in industries such as oil, chemical industry, boats and ships, electric power, grain and oil, food, medical treatment, building materials, metallurgy and national defence scientific research; Simple in structure, good manufacturability that gear motor has, advantage such as insensitive, shock-resistant and inertia is little to the pollution of fluid is widely used in the hydraulic system in the equipment such as lathe, automobile, building machinery, injection machine and oilfield machinery.But owing to gear pump, gear motor are respectively two independently Hydraulic power units and hydraulic actuators, they need be with other hydraulic element---control valve and oil pipe etc. comes together to constitute hydraulic system, and the flow pulsation of the gear pump big defective of torque ripple big and gear motor is that problem to be solved is arranged always.
Summary of the invention
In order to overcome above deficiency, the object of the present invention is to provide a kind of hydraulic system that low-pulsation gear pump, low pulsation gear motor and safety valve are become one, it comprises the gear motor and the safety valve of low-pulsation gear pump, low torque ripple, flow pulsation output torque low, motor with pump is steady, the characteristics that noise is low are for user's installation and use brought convenience.
This research and design a kind of low-pulsation gear pump gear motor integrated machine, a kind of hydraulic system that low-pulsation gear pump, low torque ripple gear motor and safety valve are integrated has been proposed; Because the gear pump and the gear motor of this integrated machine have the gear of two pairs of mutual dislocation to be meshed respectively, so the flow pulsation of this integrated machine gear pump is lower than 5%, the pulsation of the output torque of gear motor is lower than 5%; Therefore, this integrated machine is except the general advantage with full depth tooth wheel pump, gear motor, and it is steady also to have an output torque, System noise is low, simple in structure, and is in light weight, easy for installation, advantages of cheap price can be widely used in lathe, automobile, farm machinery and oilfield machinery.
The technological scheme that the present invention solves its technical problem employing is:
This integrated machine is by first gear shaft (1), motor end cap (3), motor cylinder (4), middle casing (5), safety valve (6), pump cylinder (7), pump end cap (8), bolt assembly (9), second gear shaft (10), bearing (12,13,14,15,16,17,18,19), seal ring (20,21,23,24,22,26), the 3rd gear shaft (31), key (27,32,35,39), gear (33,34,37,38) and the 4th gear shaft (36) are formed.
The gear parameter of gear (33,34,37,38) is identical; Gear first gear shaft (1), second gear shaft (10), the 3rd gear shaft (31) are identical with the gear parameter of the 4th gear shaft (36); The gear of gear first gear shaft (1), second gear shaft (10), the 3rd gear shaft (31), the 4th gear shaft (36) and gear (33,34,37,38) are master gear, or the normal shift gear; The material of motor end cap (3) and pump end cap (8) is a cast steel; The material of motor cylinder (4), middle casing (5) and pump cylinder (7) is aluminum alloy or stainless steel; The gear of gear first gear shaft (1), second gear shaft (10), the 3rd gear shaft (31), the 4th gear shaft (36) and gear (33,34,37,38) are spur gears, or helical gear; The tooth curve of the gear of gear first gear shaft (1), second gear shaft (10), the 3rd gear shaft (31), the 4th gear shaft (36) and gear (33,34,37,38) is an involute profile, or circular arc profile.
Gear (38) is installed on first gear shaft (1) by key (39), and realizes circumferential misalignment with the gear on first gear shaft (1), forms the first composite teeth wheels; Gear (37) is installed on second gear shaft (10) by key (27), and realizes circumferential misalignment with the gear on second gear shaft (10), forms the second composite teeth wheels; Gear (33) is installed on the 3rd gear shaft (31) by key (32), and realizes circumferential misalignment with the gear on the 3rd gear shaft (31), forms the 3rd composite teeth wheels; Gear (34) is installed on the 4th gear shaft (36) by key (35), and realizes circumferential misalignment with the gear on the 4th gear shaft (36), forms the 4th composite teeth wheels.
The gear of the second composite teeth wheels and the 4th composite teeth wheels constitutes low-pulsation gear pump with pump cylinder (7), pump end cap (8) and middle casing (5), when the rotation of the motor drives second composite teeth wheels, when the 4th composite teeth wheels that promotion is engaged with rotate, the volume of the seal space of pump can change, gear pump (28) is from pump filler opening (2) oil-feed, and the pressure oil of generation is transported in the low pulsation gear motor (29) by pressure hydraulic fluid port (25); The gear of the first composite teeth wheels and the 3rd composite teeth wheels constitutes low pulsation gear motor (29) with motor cylinder (4), motor end cap (3) and middle casing (5), when the pressure oil from low-pulsation gear pump (28) enters gear motor, promote the first composite teeth wheels and the rotation of the 3rd composite teeth wheels of low pulsation gear motor (29); In order to guarantee the safety of hydraulic system, safety valve (6) is installed on middle casing (5); Bearing (12,13,14,15,16,17,18,19) is embedded in respectively in motor end cap (3), middle casing (5) and the pump end cap (8); Seal ring (20,21,23,24) is respectively hermetic motor end cap (3) and motor cylinder (4), motor cylinder (4) and middle casing (5), middle casing (5) and pump cylinder (7), pump cylinder (7) and pump end cap (8); Motor end cap (3), motor cylinder (4), middle casing (5), pump cylinder (7) and pump end cap (8) connect by bolt assembly (9); Seal ring (22) is contained on first gear shaft (1), is used for the sealing between first gear shaft (1) and motor end cap (3), and seal ring (26) is contained on second gear shaft (10), is used for the sealing between second gear shaft (10) and pump end cap (8).
A kind of low-pulsation gear pump gear motor integrated machine is shown in Figure of description 1, accompanying drawing 2 and accompanying drawing 3;
The present invention compares with background technique, and the beneficial effect that has is:
Because the present invention becomes one low-pulsation gear pump, low pulsation gear motor and safety valve, and adopted the technology of the output torque pulsation of the flow pulsation that reduces gear pump and gear motor, so it is steady that the present invention has output torque, System noise is low, simple in structure, in light weight, easy for installation, advantages of cheap price can be widely used in lathe, automobile, farm machinery and oilfield machinery.
Description of drawings
The present invention will be further described below in conjunction with Figure of description.
Fig. 1 is a structure principle chart of the present invention.
Fig. 2 is the three-dimensional blast schematic diagram of Fig. 1 of the present invention.
Fig. 3 is the hydraulic schematic diagram of Fig. 1 of the present invention.
Among Fig. 1,2,3: 1. first gear shaft, 2. pump fluid mouth, 3. motor end cap, 4. motor cylinder, 5. middle casing, 6. safety valve, 7. pump cylinder, 8. pump end cap, 9. bolt assembly, 10. second gear shaft, 11. motor liquid port, 12,13,14,15,16,17,18,19. bearings, 20,21,23,24. seal rings, 22,26. seal rings, 25. pressure hydraulic fluid port, 28. gear pump, 29. gear motors, 30. fuel tanks, 31. the 3rd gear shaft, 32,35,39,27. keys, 33,34,37,38. gears, 36. the 4th gear shafts.
Embodiment
Shown in Fig. 1,2,3,4, gear (38) is installed on first gear shaft (1) by key (39), and realizes circumferential misalignment with the gear on first gear shaft (1), forms the first composite teeth wheels; Gear (37) is installed on second gear shaft (10) by key (27), and realizes circumferential misalignment with the gear on second gear shaft (10), forms the second composite teeth wheels; Gear (33) is installed on the 3rd gear shaft (31) by key (32), and realizes circumferential misalignment with the gear on the 3rd gear shaft (31), forms the 3rd composite teeth wheels; Gear (34) is installed on the 4th gear shaft (36) by key (35), and with the 4th gear shaft on the gear of (36) realize circumferential misalignment, form the 4th composite teeth wheels.
The gear of the second composite teeth wheels and the 4th composite teeth wheels has constituted low-pulsation gear pump with pump cylinder (7), pump end cap (8) and middle casing (5), when the rotation of the motor drives second composite teeth wheels, when the 4th composite teeth wheels that promotion is engaged with rotate, low-pulsation gear pump (28) is from pump filler opening (2) oil-feed, the pressure oil that produces is transported in the low pulsation gear motor (29) by pressure hydraulic fluid port (25); The gear of the first composite teeth wheels and the 3rd composite teeth wheels has formed low pulsation gear motor with motor cylinder (4), motor end cap (3) and middle casing (5), promotes the first composite teeth wheels and the rotation of the 3rd composite teeth wheels of gear motor (29) from the pressure oil of low-pulsation gear pump (28); In order to guarantee the safety of hydraulic system, safety valve (6) is installed on middle casing (5); Bearing (12,13,14,15,16,17,18,19) is embedded in respectively in motor end cap (3), middle casing (5) and the pump end cap (8); Seal ring (20,21,23,24) is respectively hermetic motor end cap (3) and motor cylinder (4), motor cylinder (4) and middle casing (5), middle casing (5) and pump cylinder (7), pump cylinder (7) and pump end cap (8); Motor end cap (3), motor cylinder (4), middle casing (5), pump cylinder (7) and pump end cap (8) connect by bolt assembly (9); Seal ring (22) is contained on first gear shaft (1), is used for the sealing between first gear shaft (1) and motor end cap (3), and seal ring (26) is contained on second gear shaft (10), is used for the sealing between second gear shaft (10) and pump end cap (8).
The present invention has adopted the technology of gear train mutual dislocation, has realized the low systolize of gear pump and gear motor, makes the flow pulsation of gear pump and the output torque pulsation of gear motor be lower than 5%.
The present invention forms low-pulsation gear pump gear motor integrated machine because low-pulsation gear pump, low pulsation gear motor and safety valve are integrated into one; The invention provides a kind of hydraulic system that gear pump, gear motor and safety valve are become one, for user's installation and use brought convenience.
Claims (9)
1. low-pulsation gear pump gear motor integrated machine, it is characterized in that: this integrated machine is by first gear shaft (1), motor end cap (3), motor cylinder (4), middle casing (5), safety valve (6), pump cylinder (7), pump end cap (8), bolt assembly (9), second gear shaft (10), bearing (12,13,14,15,16,17,18,19), seal ring (20,21,23,24,22,26), the 3rd gear shaft (31), key (27,32,35,39), gear (33,34,37,38) and the 4th gear shaft (36) are formed; Gear (38) is installed on first gear shaft (1) by key (39), and realizes circumferential misalignment with the gear on first gear shaft (1), forms the first composite teeth wheels; Gear (37) is installed on second gear shaft (10) by key (27), and realizes circumferential misalignment with the gear on second gear shaft (10), forms the second composite teeth wheels; Gear (33) is installed on the 3rd gear shaft (31) by key (32), and realizes circumferential misalignment with the gear on the 3rd gear shaft (31), forms the 3rd composite teeth wheels; Gear (34) is installed on the 4th gear shaft (36) by key (35), and realizes circumferential misalignment with the gear on the 4th gear shaft (36), forms the 4th composite teeth wheels.
2. low-pulsation gear pump gear motor integrated machine according to claim 1 is characterized in that: the gear of the second composite teeth wheels and the 4th composite teeth wheels constitutes low-pulsation gear pump with pump cylinder (7), pump end cap (8) and middle casing (5); The gear of the first composite teeth wheels and the 3rd composite teeth wheels constitutes low pulsation gear motor (29) with motor cylinder (4), motor end cap (3) and middle casing (5).
3. low-pulsation gear pump gear motor integrated machine according to claim 1 is characterized in that: the gear parameter of gear (33,34,37,38) is identical.
4. low-pulsation gear pump gear motor integrated machine according to claim 1 is characterized in that: gear first gear shaft (1), second gear shaft (10), the 3rd gear shaft (31) are identical with the gear parameter of the 4th gear shaft (36).
5. low-pulsation gear pump gear motor integrated machine according to claim 1, it is characterized in that: the gear of gear first gear shaft (1), second gear shaft (10), the 3rd gear shaft (31), the 4th gear shaft (36) and gear (33,34,37,38) are master gear, or the normal shift gear.
6. low-pulsation gear pump gear motor integrated machine according to claim 1 is characterized in that: the material of motor end cap (3) and pump end cap (8) is a cast steel.
7. low-pulsation gear pump gear motor integrated machine according to claim 1 is characterized in that: the material of motor cylinder (4), middle casing (5) and pump cylinder (7) is aluminum alloy or stainless steel.
8. low-pulsation gear pump gear motor integrated machine according to claim 1, it is characterized in that: the gear of gear first gear shaft (1), second gear shaft (10), the 3rd gear shaft (31), the 4th gear shaft (36) and gear (33,34,37,38) are spur gears, or helical gear.
9. low-pulsation gear pump gear motor integrated machine according to claim 1, it is characterized in that: the tooth curve of the gear of gear first gear shaft (1), second gear shaft (10), the 3rd gear shaft (31), the 4th gear shaft (36) and gear (33,34,37,38) is an involute profile, or circular arc profile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205707919U CN201836148U (en) | 2010-10-12 | 2010-10-12 | Low-pulsation gear pump and gear motor integrated machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205707919U CN201836148U (en) | 2010-10-12 | 2010-10-12 | Low-pulsation gear pump and gear motor integrated machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201836148U true CN201836148U (en) | 2011-05-18 |
Family
ID=44006252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205707919U Expired - Fee Related CN201836148U (en) | 2010-10-12 | 2010-10-12 | Low-pulsation gear pump and gear motor integrated machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201836148U (en) |
-
2010
- 2010-10-12 CN CN2010205707919U patent/CN201836148U/en not_active Expired - Fee Related
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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: Huainan Botai Mining Electric Appliance Co., Ltd. Assignor: Anhui University Of Science And Technology Contract record no.: 2012340000115 Denomination of utility model: Low-pulsation gear pump and gear motor integrated machine Granted publication date: 20110518 License type: Exclusive License Record date: 20120412 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20121012 |