CN216278324U - Venturi ejector type hydraulic pump with large discharge capacity - Google Patents
Venturi ejector type hydraulic pump with large discharge capacity Download PDFInfo
- Publication number
- CN216278324U CN216278324U CN202122535371.8U CN202122535371U CN216278324U CN 216278324 U CN216278324 U CN 216278324U CN 202122535371 U CN202122535371 U CN 202122535371U CN 216278324 U CN216278324 U CN 216278324U
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- oil
- oil tank
- venturi
- venturi ejector
- hydraulic pump
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- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 238000006073 displacement reaction Methods 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 238000002347 injection Methods 0.000 claims abstract description 13
- 239000007924 injection Substances 0.000 claims abstract description 13
- 238000009792 diffusion process Methods 0.000 claims abstract description 11
- 239000003921 oil Substances 0.000 description 50
- 239000012530 fluid Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a large-displacement Venturi ejector type hydraulic pump device, which comprises a one-way valve, a transmission device, an oil tank and a Venturi ejector device, wherein the one-way valve is arranged in a path and used for preventing oil from flowing back; the transmission device comprises a cylinder body, a spring plunger and a cam mechanism, wherein the cylinder body is used for storing oil, and the cam mechanism rotates circularly so as to drive the spring plunger to reciprocate in the cylinder body and further enable the oil to enter the cylinder body from an oil tank; the venturi injection device comprises a diffusion chamber, a mixing chamber, a suction chamber, a nozzle, a liquid inlet, a liquid outlet, a check valve and an oil tank, wherein oil enters the venturi injection device from the nozzle, under the action of pressure difference, the oil in the oil tank enters the suction chamber through the check valve, contacts with the oil at the nozzle in the suction chamber to reach the mixing chamber for mixing, and is discharged from the diffusion chamber.
Description
Technical Field
The utility model relates to the field of hydraulic pressure, in particular to a large-displacement Venturi ejector type hydraulic pump device.
Background
With the development of science and technology, the increase of large-scale devices and machines, the hydraulic drive is widely applied, and meanwhile, the requirements of people on hydraulic performance are continuously improved and the scale of a hydraulic pump is continuously enlarged, so that the improvement of the hydraulic performance taking the displacement and the pressure as standards is particularly important.
Firstly, a hydraulic pump is used as a driving element of a hydraulic system, is driven by a motor or a generator, sucks oil from an oil tank, discharges the formed hydraulic oil, and then sends the hydraulic oil to executing elements such as a hydraulic cylinder, a hydraulic motor and the like; the hydraulic system is an important component of a mechanical system, wherein a hydraulic element plays an important role in the machine, so the performance of the hydraulic element directly determines the performance of the whole mechanical structure. The hydraulic pump is an important driving element in a hydraulic system and is widely applied to hydraulic systems of various engineering machines, so that the performance of the hydraulic pump directly determines the working performance of the engineering machines.
However, due to the excessive variety of hydraulic pumps, the manufacturing method and the processing technology of the hydraulic pump are very complicated, and the performance of the hydraulic pump is mainly measured in three aspects of pressure, displacement and power, wherein the displacement plays a very important role. The displacement of the hydraulic pump refers to the volume of liquid that the hydraulic pump can be exported every turn a week, and the hydraulic pump of the big discharge capacity of our country is comparatively scarce at present, and the hydraulic pump of big discharge capacity also can be accompanied by powerful loss and the phenomenon that fluid was revealed simultaneously.
Based on this, it is necessary to develop a hydraulic pump to increase the displacement of the hydraulic pump.
SUMMERY OF THE UTILITY MODEL
In order to improve the displacement of the hydraulic pump and further improve the working performance of a hydraulic transmission system, the utility model provides a large-displacement Venturi ejector type hydraulic pump.
The technical scheme adopted by the utility model for solving the technical problems is as follows: a large-displacement Venturi ejector type hydraulic pump comprises two oil tanks, three check valves, a transmission device and a Venturi ejector device, wherein the number of the oil tanks is two; the cam structure drives the spring plunger to do reciprocating motion, so that the oil suction and oil discharge processes of the hydraulic pump are realized, and the oil suction of the oil tank is realized through the pressure difference at the nozzle, so that the oil discharge capacity of the outlet is increased.
Preferably, the three check valves are common check valves, and consist of an oil inlet and an oil outlet, so that oil is prevented from flowing back in the hydraulic system.
Preferably, the two oil tanks provide oil for the device, one oil tank sucks the oil through the transmission device, and the other oil tank sucks the oil again under the action of the pressure difference in the Venturi injection device to be mixed with the crude oil and then is discharged.
Preferably, the transmission device consists of a cam mechanism, a spring plunger and a cylinder body, and provides power for the system.
Preferably, the venturi injection device consists of a venturi injector, a one-way valve and a fuel tank, wherein the venturi injector is a non-moving component, so that the sealing performance of the system is improved.
Preferably, the first venturi ejector is composed of a diffusion chamber, a mixing chamber, a suction chamber and a nozzle, and the pressure difference is formed by the rapid flow of the oil liquid at the nozzle, and the oil liquid is pressed into the mixing chamber from the suction chamber to be mixed and discharged.
The hydraulic pump has the beneficial effects that the structure is simple, the discharge capacity of the hydraulic pump is improved, the working performance of the hydraulic pump is improved, the practicability is strong, the sealing performance is good, and the green oil absorption can be realized.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic view showing the overall structure of a large discharge capacity venturi ejector type hydraulic pump according to the present invention.
FIG. 2 is a schematic structural view of a venturi jet device of the present invention.
The figure shows a check valve, 20 transmission devices, 30 check valves, 40 oil tanks and 50 Venturi injection devices.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 and 2, the present invention provides a large-displacement venturi jet type hydraulic pump, which mainly comprises a check valve 10, a check valve 30, a transmission 20, an oil tank 40 and a venturi jet device 50, wherein the check valve 10 and the check valve 30 are in the same path and are used for preventing oil from flowing back; the transmission device comprises a cylinder body 201, a spring plunger 202 and a cam mechanism 203, wherein the cylinder body 201 is used for storing oil, and the cam mechanism 203 rotates circularly so as to drive the spring plunger 202 to move in the cylinder body 201 in a reciprocating manner, so that the oil is sucked from the cylinder body to provide power for the system; the venturi injection device comprises a diffusion chamber 501, a mixing chamber 502, a suction chamber 503, a nozzle 504, a liquid inlet 505, a liquid outlet 506, a liquid inlet 507, a check valve 508 and an oil tank 509, wherein oil enters from the venturi injection device 50, under the action of pressure difference, the oil in the oil tank 509 enters the suction chamber 503 through the check valve 508, is mixed with the oil at the nozzle 504, then reaches the mixing chamber 502, and is discharged from the diffusion chamber 501.
In one embodiment of the present invention, the working oil enters the mixing chamber 502 from the horizontal direction through the nozzle 504, the working oil has a higher pressure and flow rate when entering the mixing chamber 502, the flow rate is increased dramatically when exiting the nozzle 504, so that the working oil generates a low pressure region around the nozzle 504, since the pressure of the oil injected from the liquid inlet 507 is lower than the low pressure generated by the nozzle, the oil moves from a place with high pressure to a place with low pressure according to bernoulli's equation, the oil is injected and sucked into the suction chamber 503 under the action of the pressure difference, the working oil and the injected oil join in the suction chamber 503, and the mixing and energy exchange are completed in the mixing chamber 3, enter the diffusion chamber 501, the flow rate of the mixed fluid in the diffusion chamber 501 is reduced, the pressure is increased, and the mixed fluid is discharged from the liquid outlet 506 after being higher than the atmospheric pressure.
In an embodiment of the present invention, the cam mechanism 203 rotates circularly to drive the spring plunger 202 to move reciprocally in the cylinder 201, so that the volume in the cylinder 201 changes, and then the oil is sucked from the oil tank 40, formed by the check valve 30, the transmission device 20 and the check valve 10, and discharged, and then sent to the venturi injection device 50.
In an embodiment of the present invention, the venturi injection device 50 is connected in series with the transmission device 20 by a pipeline, the connection is provided with the check valve 10, the cam mechanism 203 rotates circularly to drive the spring plunger 202 to move back and forth in the cylinder 201, so that the volume of the cylinder 201 changes, oil is sucked from the oil tank 40, the oil is sucked from the oil tank 40, passes through the check valve 30, the transmission device 20 and the check valve 10, is formed, is discharged, and is then sent to the venturi injection device 50. In the venturi injection device 50, when the oil passes through the nozzle 504, the flow velocity of the oil increases, so that a negative pressure is generated in the suction chamber 503, and the negative pressure causes the oil in another oil tank 509 to enter the suction chamber 503 through the liquid inlet 507 and be discharged through the mixing chamber 502, the diffusion chamber 501 and the liquid outlet 506 together, thereby completing the secondary suction of the oil and increasing the discharge capacity of the hydraulic pump.
In addition, the device has simple integral structure and convenient disassembly and assembly.
So far, along with the continuous development of industrialization level and the continuous expansion of industrial scale, the discharge capacity to the hydraulic pump has proposed new requirement, through venturi ejector's quiet blender, can be perfect realize the secondary absorption of fluid and the increase of discharge capacity, and can not cause the waste of the energy because of using the movable member, and then realize the greenization and absorb fluid.
Claims (3)
1. A large-displacement Venturi ejector type hydraulic pump is characterized by comprising a one-way valve, a transmission device, an oil tank and a Venturi ejector device, wherein the one-way valve is arranged in a path and used for preventing oil from flowing back; the transmission device comprises a cylinder body, a spring plunger and a cam mechanism, wherein the cylinder body is used for storing oil, the cam mechanism rotates circularly so as to drive the spring plunger to reciprocate in the cylinder body, and an oil tank is sucked into the cylinder body from an oil tank; the venturi injection device comprises a diffusion chamber, a mixing chamber, a suction chamber, a nozzle, a liquid inlet, a liquid outlet, a one-way valve and an oil tank, wherein oil enters the venturi injection device from the nozzle, under the action of pressure difference, the oil in the oil tank enters the suction chamber through the one-way valve, contacts with the oil at the nozzle, enters the mixing chamber to be mixed, and is discharged from the diffusion chamber.
2. A large displacement venturi ejector type hydraulic pump according to claim 1, wherein the transmission means comprises a cam mechanism, a spring plunger, and a cylinder, the cam mechanism rotates cyclically, and the spring plunger reciprocates in the cylinder.
3. A large displacement venturi ejector type hydraulic pump according to claim 2, wherein the venturi ejector means comprises a venturi ejector, a check valve and an oil tank; the venturi ejector is an inactive component and comprises a diffusion chamber, a mixing chamber, a suction chamber and a nozzle, the venturi ejector device is connected with the transmission device, a one-way valve is arranged at the joint, the transmission device is connected with the oil tank, the one-way valve is arranged at the joint, the venturi ejector device is connected with the oil tank, and the one-way valve is arranged at the joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122535371.8U CN216278324U (en) | 2021-10-21 | 2021-10-21 | Venturi ejector type hydraulic pump with large discharge capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122535371.8U CN216278324U (en) | 2021-10-21 | 2021-10-21 | Venturi ejector type hydraulic pump with large discharge capacity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216278324U true CN216278324U (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122535371.8U Active CN216278324U (en) | 2021-10-21 | 2021-10-21 | Venturi ejector type hydraulic pump with large discharge capacity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115069157A (en) * | 2022-06-17 | 2022-09-20 | 北京铁路物资有限公司物资供应分公司 | Preparation device and process of air conditioner radiator cleaning agent |
-
2021
- 2021-10-21 CN CN202122535371.8U patent/CN216278324U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115069157A (en) * | 2022-06-17 | 2022-09-20 | 北京铁路物资有限公司物资供应分公司 | Preparation device and process of air conditioner radiator cleaning agent |
| CN115069157B (en) * | 2022-06-17 | 2023-03-10 | 北京铁路物资有限公司物资供应分公司 | Preparation device and process of air conditioner radiator cleaning agent |
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