CN214036092U - Durable combination gear pump - Google Patents
Durable combination gear pump Download PDFInfo
- Publication number
- CN214036092U CN214036092U CN202023108093.XU CN202023108093U CN214036092U CN 214036092 U CN214036092 U CN 214036092U CN 202023108093 U CN202023108093 U CN 202023108093U CN 214036092 U CN214036092 U CN 214036092U
- Authority
- CN
- China
- Prior art keywords
- pump
- gear
- oil
- cavity
- durable
- 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.)
- Active
Links
Images
Landscapes
- Rotary Pumps (AREA)
Abstract
The utility model relates to a durable combination gear pump, including the casing, be equipped with the strip cavity in the casing, be equipped with a plurality of balanced baffles in the strip cavity, balanced baffle package rubbing board body, the plate body just separates into a plurality of pump chambeies with the strip cavity with the inner wall fixed connection of strip cavity, is equipped with a pair of gear in every pump intracavity respectively, has set firmly the motor on the tip outer wall of the housing, and the output shaft of motor links to each other with the action wheel, and the both sides of casing are equipped with oil inlet and oil-out respectively, and oil inlet and oil-out are continuous from both sides pump chamber respectively. The utility model discloses a balancing tank makes oil pumping chamber and the end that produces oil communicate in advance at the oil pumping in-process, makes oil pumping chamber pressure boost to the same with the end pressure that produces oil to offset that some gear shafts bear, by the power that the end that produces oil pressed to the oil feed end, reduce the radial load of gear shaft, reduced the wearing and tearing of gear shaft to pump chamber lateral wall, improved gear revolve's equilibrium, reduced the emergence of vibration, oil leak phenomenon, prolonged the life of combination gear pump.
Description
Technical Field
The utility model relates to a hydraulic equipment technical field especially relates to a durable combination gear pump.
Background
At present, only one gear pump often cannot meet the application requirement when a plurality of hydraulic systems work, and a combined gear pump driven by one driving mechanism is generally required to be used. When the existing combined gear pump works, the pressure of an oil outlet end is high, the gear shaft needs to bear the resultant force of a plurality of pump cavities, and the radial pressure of the gear shaft is high, so that the gear shaft seriously abrades the joint of the side wall of the pump cavity and the gear shaft, the rotating balance of the gear is reduced, the phenomena of vibration and oil leakage easily occur, and the service life of the combined gear pump is shortened.
Disclosure of Invention
The utility model discloses aim at solving prior art not enough, and provide a durable combination gear pump.
The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:
a durable combination gear pump comprises a shell, a strip-shaped cavity is arranged in the shell, a plurality of balance clapboards are arranged in the strip-shaped cavity,
the balance baffle comprises a plate body, the plate body is fixedly connected with the inner wall of the strip-shaped cavity and divides the strip-shaped cavity into a plurality of pump cavities, the surfaces of the plate body positioned in the pump cavities at two sides are respectively provided with a 3-shaped balance groove, the gap of the balance groove faces to the oil inlet end,
a pair of gears which are meshed with each other is respectively arranged in each pump cavity, two ends of a shaft of each gear are respectively rotatably connected with the side walls at two ends of each pump cavity, the shafts of the gears are respectively concentrically arranged with two sections of circular arcs of the balance groove, the gears which are positioned above the two pairs of gears are both driving wheels and share one power shaft, the outer edge of the top tooth surface of the gear positioned above is attached to the inner wall at the top of each pump cavity, the outer edge of the bottom tooth surface of the gear positioned below is attached to the inner wall at the bottom of each pump cavity, the side walls at two ends of each gear are respectively attached to the side walls at two ends of each pump cavity,
the motor is fixedly arranged on the outer wall of the end part of the shell, an output shaft of the motor is fixedly connected with a power shaft of the driving wheel, an oil inlet and an oil outlet are respectively arranged on two sides of the shell, and the oil inlet and the oil outlet are respectively connected with the pump cavity from two sides.
Preferably, the number of the balance partition plates is one, and the strip-shaped cavity is divided into two pump cavities with equal sizes.
Preferably, the gear engaged with the driving wheel is a driven wheel, and the two driven wheels are coaxially arranged.
Preferably, the shafts of the gears are rotatably connected with the side walls of the two ends of the pump cavity through sealed bearings.
Preferably, both ends of the shell positioned in the strip-shaped cavity are provided with end covers convenient to detach, and the motor is fixedly connected with the end covers.
Preferably, the number of the oil inlets is one, the oil inlets are respectively connected with each pump cavity through a horizontally arranged oil inlet pipe, and the oil inlet pipes are positioned in the shell.
Preferably, each pump chamber is provided with an oil outlet.
The utility model has the advantages that: the utility model discloses a balancing tank makes oil pumping chamber and the end that produces oil communicate in advance at the oil pumping in-process, makes oil pumping chamber pressure boost to the same with the end pressure that produces oil to offset that some gear shafts bear, by the power that the end that produces oil pressed to the oil feed end, reduce the radial load of gear shaft, reduced the wearing and tearing of gear shaft to pump chamber lateral wall, improved gear revolve's equilibrium, reduced the emergence of vibration, oil leak phenomenon, prolonged the life of combination gear pump.
Drawings
Fig. 1 is a top view of the present invention;
FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken at B-B of FIG. 1;
in the figure: 1-a shell; 2-pump cavity; 3-a balance baffle; 4-a gear; 5, a motor; 6-oil inlet; 7-an oil outlet; 11-end cap; 31-a plate body; 32-a balancing tank; 33-sealed bearings;
the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.
Detailed Description
The invention will be further explained with reference to the following figures and examples:
as shown in the figure, the durable combined gear pump comprises a shell 1, a strip-shaped cavity is arranged in the shell 1, a plurality of balance clapboards 3 are arranged in the strip-shaped cavity,
the balance partition board 3 comprises a board body 31, the board body 31 is fixedly connected with the inner wall of the strip-shaped cavity and divides the strip-shaped cavity into a plurality of pump cavities 2, 3-shaped balance grooves 32 are respectively arranged on the surfaces of the board body 31 positioned in the pump cavities 2 at two sides, the gaps of the balance grooves 32 face the oil inlet end,
a pair of gears 4 which are meshed with each other are respectively arranged in each pump cavity 2, two ends of a shaft of each gear 4 are respectively connected with the side walls of two ends of the pump cavity 2 in a rotating way, the shafts of the gears 4 are respectively arranged concentrically with two sections of circular arcs of the balance groove 32, the gears 4 which are positioned above the two pairs of gears 4 are both driving wheels and share one power shaft, the outer edge of the top tooth surface of the gear 4 positioned above is attached to the inner wall of the top of the pump cavity 2, the outer edge of the bottom tooth surface of the gear 4 positioned below is attached to the inner wall of the bottom of the pump cavity 2, the side walls of two ends of the gear 4 are respectively attached to the side walls of two ends of the pump cavity 2,
the motor 5 is fixedly arranged on the outer wall of the end part of the shell 1, an output shaft of the motor 5 is fixedly connected with a power shaft of the driving wheel, an oil inlet 6 and an oil outlet 7 are respectively arranged on two sides of the shell 1, and the oil inlet 6 and the oil outlet 7 are respectively connected with the pump cavity 2 from two sides.
Preferably, the number of the balance partition plates 3 is one, and the strip-shaped cavity is divided into two pump cavities 2 with equal size.
Preferably, the gear 4 meshing with the driving wheel is a driven wheel, the two driven wheels being arranged coaxially.
Preferably, the shafts of the gears 4 are rotatably connected with the side walls of the two ends of the pump cavity 2 through sealed bearings 33.
Preferably, both ends of the housing 1 located in the strip-shaped cavity are provided with end covers 11 convenient to detach, and the motor 5 is fixedly connected with the end covers 11.
Preferably, the number of the oil inlets 6 is one, the oil inlets are respectively connected with the pump cavities 2 through a horizontally arranged oil inlet pipe, and the oil inlet pipe is positioned in the shell 1.
Preferably, each pump chamber 2 is provided with an oil outlet 7.
The utility model discloses during the use, hydraulic oil gets into and flows in each pump chamber 2 respectively through the oil inlet pipe from oil inlet 6, motor 5 drives the action wheel and rotates, the action wheel drives through the intertooth meshing effect and takes out to the oil outlet end from the oil inlet end with hydraulic oil from rotating from the driving wheel, take out the back from the oil inlet end of the oil pumping chamber that in-process gear 4's tooth clearance and the 2 inner walls of pump chamber formed, pass through balancing tank 32 and oil outlet end intercommunication immediately, make the pressure boost of oil pumping chamber to the same with oil outlet end pressure, thereby offset that some gear shafts bear, by the power that the oil outlet end pressed to the oil inlet end, reduce the radial load of gear shaft, the wearing and tearing of gear shaft to pump chamber 2 lateral walls have been reduced, gear 4 pivoted equilibrium has been improved, vibration has been reduced, the emergence of oil leak phenomenon, the life of composite gear pump has been prolonged.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and various improvements made by the method concept and technical solution of the present invention or directly applied to other occasions without improvement are all within the protection scope of the present invention.
Claims (7)
1. A durable combination gear pump comprises a shell (1) and is characterized in that a strip-shaped cavity is arranged in the shell (1), a plurality of balance clapboards (3) are arranged in the strip-shaped cavity,
the balance partition board (3) comprises a board body (31), the board body (31) is fixedly connected with the inner wall of the strip-shaped cavity and divides the strip-shaped cavity into a plurality of pump cavities (2), 3-shaped balance grooves (32) are respectively arranged on the surfaces of the board body (31) positioned in the pump cavities (2) at the two sides, the gaps of the balance grooves (32) face the oil inlet end,
a pair of gears (4) which are meshed with each other is respectively arranged in each pump cavity (2), two ends of a shaft of each gear (4) are respectively rotatably connected with the side walls at two ends of each pump cavity (2), the shaft of each gear (4) is respectively concentrically arranged with two sections of circular arcs of the balance groove (32), the gears (4) which are positioned above the two pairs of gears (4) are respectively driving wheels and share one power shaft, the outer edge of the top tooth surface of the gear (4) positioned above the gear (4) is attached to the inner wall at the top of each pump cavity (2), the outer edge of the bottom tooth surface of the gear (4) positioned below the gear (4) is attached to the inner wall at the bottom of each pump cavity (2), the side walls at two ends of each gear (4) are respectively attached to the side walls at two ends of each pump cavity (2),
the motor (5) is fixedly arranged on the outer wall of the end part of the shell (1), an output shaft of the motor (5) is fixedly connected with a power shaft of the driving wheel, an oil inlet (6) and an oil outlet (7) are respectively arranged on two sides of the shell (1), and the oil inlet (6) and the oil outlet (7) are respectively connected with the pump cavity (2) from two sides.
2. Durable gear pump according to claim 1, characterized in that the number of balancing diaphragms (3) is one and divides the strip-shaped cavity into two pump chambers (2) of equal size.
3. Durable gear pump according to claim 2, characterized in that the gear wheel (4) engaging with the driving wheel is a driven wheel, the two driven wheels being arranged coaxially.
4. Durable gear pump unit according to claim 1, characterized in that the shafts of the gears (4) are each rotatably connected to the side walls of both ends of the pump chamber (2) by means of a sealed bearing (33).
5. Durable gear pump according to claim 1, characterised in that the housing (1) is provided with end caps (11) at both ends of the bar-shaped cavity for easy removal, and the motor (5) is fixedly connected to the end caps (11).
6. Durable gear pump unit according to claim 1, characterized in that the number of oil inlets (6) is one, which are connected to the respective pump chambers (2) via a horizontally arranged oil inlet pipe, which is located in the housing (1).
7. Durable gear pump combination according to claim 1, characterized in that one oil outlet (7) is provided for each pump chamber (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023108093.XU CN214036092U (en) | 2020-12-22 | 2020-12-22 | Durable combination gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023108093.XU CN214036092U (en) | 2020-12-22 | 2020-12-22 | Durable combination gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214036092U true CN214036092U (en) | 2021-08-24 |
Family
ID=77340780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023108093.XU Active CN214036092U (en) | 2020-12-22 | 2020-12-22 | Durable combination gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214036092U (en) |
-
2020
- 2020-12-22 CN CN202023108093.XU patent/CN214036092U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20220220959A1 (en) | Pump integrated with two independently driven prime movers | |
| US11512695B2 (en) | External gear pump integrated with two independently driven prime movers | |
| EP2837827B1 (en) | Hydraulic device | |
| CN214036092U (en) | Durable combination gear pump | |
| CN218816950U (en) | Oil pump device and vehicle | |
| CN100383392C (en) | Axial housing type gear pump mounted with rolling bearing and gear motor | |
| CN213684502U (en) | Novel compact small gear pump suitable for aviation aircraft | |
| CN113250951A (en) | Hydraulic drive gear pump and application method thereof | |
| US3563679A (en) | Pressure-compensated gear-rotor hydraulic motor or pump | |
| CN106401864B (en) | A kind of shell turns cycloid hydraulic motor | |
| CN117780635A (en) | Oil pump device and vehicle | |
| CN214403970U (en) | Inner gearing cycloid rotor pump or motor with compensation | |
| CN220687480U (en) | Cycloid hydraulic motor rear cover and cycloid hydraulic motor | |
| CN117780634A (en) | Oil pump device and vehicle | |
| CN212130784U (en) | Centrifugal vacuum type self-unloading pump body end cover | |
| CN212376786U (en) | Axial flow distribution cycloid hydraulic motor | |
| CN213870113U (en) | Large-eccentricity low-speed large-torque line hydraulic motor | |
| CN117780630A (en) | Oil pump device and vehicle | |
| CN214403962U (en) | Large-traffic low noise type fuel pump | |
| CN117780632A (en) | Oil pump device and vehicle | |
| CN117780631A (en) | Oil pump device and vehicle | |
| WO2000061947A1 (en) | Dual path hydraulic pump | |
| CN201407171Y (en) | Pump | |
| CN115929622A (en) | Combined gear pump of shape modification gear and dynamic and static pressure sliding bearing | |
| CN117780633A (en) | Oil pump device and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 301800 No.1 Tianxing Road, energy saving and environmental protection industrial zone, Baodi District, Tianjin Patentee after: Hailink hydraulic technology (Tianjin) Co.,Ltd. Address before: 301800 No.1 Tianxing Road, energy saving and environmental protection industrial zone, Baodi District, Tianjin Patentee before: JINMAISI HYDRAULIC EQUIPMENT (TIANJIN) CO.,LTD. |