CN205533188U - A new energy-saving hydraulic pump - Google Patents

Abstract

The utility model discloses a novel energy-conserving hydraulic pump, including pump case, rotor, stator, blade, pump case one side is provided with the hydraulic fluid port, the pump case opposite side is provided with the oil absorption mouth, the inside oil absorption oil circuit that is provided with of pump case, the inside oil pressing circuit that is provided with of pump case, pump case internally mounted has the hydraulic pump shaft, install above the hydraulic pump shaft the stator, install above the hydraulic pump shaft the rotor, the inside blade oil groove that is provided with of rotor, the blade oil groove is installed the blade, install the parallel key in the keyway of hydraulic pump shaft, the pump cover is installed to pump case one side, the inside blade hydraulic fluid port that is provided with of pump cover, independent gear pump is installed to blade hydraulic. Has the advantages that: simple structure, long service life, steady pressure, easy oil absorption, low rotating speed pressure maintaining, low operation noise, less overflow and energy conservation.

Description

A new energy-saving hydraulic pump

technical field

The utility model belongs to the field of hydraulic equipment, in particular to a novel energy-saving hydraulic pump.

Background technique

The hydraulic pump is the power component of the hydraulic system. It is driven by an engine or an electric motor. It sucks oil from the hydraulic oil tank to form a pressure oil discharge and sends it to the actuator. The hydraulic pump is mainly divided into gear pumps and vane pumps according to the structure. , plunger pump, gear pump, small size, simple structure, but serious wear, large leakage, plunger pump, small leakage, can work under high pressure, mostly used in high-power hydraulic systems, but complex structure, material And machining accuracy is high, the price is expensive, and the cleanliness of the oil is high. Therefore, the vane pump is widely used, but the ordinary vane pump has a large impact on the vane, short life, unstable oil supply pressure, and high operating noise. The overflow is relatively large. Therefore, a hydraulic pump with simple structure, long service life, stable pressure, easy oil suction, low operating noise, less overflow and energy saving is required.

Utility model content

The purpose of this utility model is to provide a novel energy-saving hydraulic pump in order to solve the above problems.

The utility model realizes above-mentioned purpose through following technical scheme:

A new type of energy-saving hydraulic pump, including a pump casing, a rotor, a stator, and vanes. One side of the pump casing is provided with an oil pressure port, the other side of the pump casing is provided with an oil suction port, and the inside of the pump casing is provided with an oil suction port. The inside of the pump casing is provided with a pressure oil circuit, the inside of the pump casing is installed with a hydraulic pump shaft, the stator is installed on the hydraulic pump shaft, and the rotor is installed on the hydraulic pump shaft. The inside of the rotor is provided with a blade oil groove, the blade oil groove is installed with the blade, a flat key is installed in the key groove of the hydraulic pump shaft, a pump cover is installed on one side of the pump casing, and the inside of the pump cover is provided with a blade Oil port, an independent gear pump is installed on one side of the vane oil port.

In the above structure, the internal curve of the stator adopts a special design, which can effectively reduce the impact of pressure oil on the blade and effectively improve the service life of the blade. Through the independent gear pump, the oil port of the blade and the The vane oil groove provides pressure oil to the bottom of the vane, which can keep the vane in contact with the inner cavity of the stator all the time, so that the oil supply pressure is stable and the running noise is low.

In order to further improve its working performance, the pump casing and the pump cover are fixedly connected by bolts, and the vane oil ports inside the pump cover are connected to the independent gear pump through oil pipes.

In order to further improve its working performance, the inside of the pump housing is fixedly connected to the hydraulic pump shaft through bearings, and the hydraulic pump shaft is fixedly connected to the stator through bearings.

In order to further improve its working performance, the hydraulic pump shaft is fixedly connected to the rotor through bearings, the hydraulic pump shaft is connected with the rotor through the flat key, and the blade oil groove inside the rotor is placed with the blade.

In order to further improve its working performance, the oil suction circuit is connected to the oil suction port, and the oil pressure circuit is connected to the oil pressure port.

The beneficial effect is that the structure is simple, the service life is long, the pressure is stable, the oil is easy to absorb, the running noise is small, the overflow is small, and the energy is saved.

Description of drawings

Fig. 1 is the front view of a novel energy-saving hydraulic pump described in the utility model;

Fig. 2 is a side view of a novel energy-saving hydraulic pump described in the utility model.

1. Pump casing; 2. Pressure oil circuit; 3. Flat key; 4. Oil suction circuit; 5. Oil suction port; 6. Rotor; 7. Stator; 8. Hydraulic pump shaft; 9. Vane; 10. Vane oil tank ; 11. Pressure oil port; 12. Pump cover; 13. Vane oil port; 14. Independent gear pump.

detailed description

Below in conjunction with accompanying drawing, the utility model is further described:

As shown in Figure 1 and Figure 2, a new type of energy-saving hydraulic pump includes a pump casing 1, a rotor 6, a stator 7, and vanes 9. There is an oil pressure port 11 on one side of the pump casing 1, which can pressurize the hydraulic pump. The oil is pressed out of the hydraulic pump, and the other side of the pump housing 1 is provided with an oil suction port 5, which can provide hydraulic oil for the hydraulic pump. The pump housing 1 is provided with an oil suction circuit 4, which can cooperate with the oil suction port 5 to provide hydraulic oil for the hydraulic pump. The inside of the pump casing 1 is provided with a pressure oil circuit 2, which can cooperate with the pressure oil port 11 to send the hydraulic oil pressurized by the hydraulic pump out of the hydraulic pump. To provide kinetic energy, the stator 7 is installed on the hydraulic pump shaft 8, which can cooperate with the rotor 6 to complete the pressurization of the hydraulic oil. The rotor 6 is installed on the hydraulic pump shaft 8, which can cooperate with the stator 7 to complete the pressurization of the hydraulic oil. 6. There is a vane oil groove 10 inside, which can provide pressure oil for the vane 9 to ensure that the vane 9 is always in contact with the inner cavity of the stator 7. The vane oil groove 10 is installed with the vane 9, which can pressurize the hydraulic oil. Inside the keyway of the hydraulic pump shaft 8 A flat key 3 is installed, a pump cover 12 is installed on one side of the pump casing 1, and the pump casing 1 is used to seal the inside of the hydraulic pump. A vane oil port 13 is installed inside the pump cover 12, and an independent gear pump is installed on the side of the vane oil port 13. 14. Provide pressure oil for the bottom of blade 9.

In the above structure, the internal curve of the stator 7 adopts a special design, which can effectively reduce the impact of the pressure oil on the vane 9 and effectively improve the service life of the vane 9. Through the independent gear pump 14, the vane oil port 13 and the vane oil groove 10 are connected to the vane 9 Pressure oil is provided at the bottom, which can keep the vane 9 in constant contact with the inner cavity of the stator 7, so that the oil supply pressure is stable and the running noise is low.

In order to further improve its working performance, the pump casing 11 and the pump cover 14 are fixedly connected by bolts to seal the interior of the hydraulic pump. The vane oil port 13 inside the pump cover 1 is connected to the independent gear pump 14 through the oil pipe to provide the bottom of the vane 9. Pressure oil, pump casing 1 is fixedly connected to hydraulic pump shaft 8 through bearings to provide kinetic energy for rotor 6, hydraulic pump shaft 8 is fixedly connected to stator 7 through bearings, and hydraulic pump shaft 8 is fixedly connected to rotor 6 through bearings. For pressurization, the hydraulic pump shaft 8 is connected with the rotor 6 through the flat key 3. The vane 9 is placed in the vane oil groove 10 inside the rotor 6. The oil suction circuit 4 is connected with the oil suction port 5, and the oil suction and oil pressure circuit can be carried out. 2 It is connected with the pressure oil port 11, and the pressure oil can be pressed out of the hydraulic pump.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their effects.

Claims (5)

1. A new type of energy-saving hydraulic pump, characterized in that: it includes a pump casing, a rotor, a stator, and vanes. One side of the pump casing is provided with an oil pressure port, and the other side of the pump casing is provided with an oil suction port. There is an oil suction circuit inside the casing, an oil pressure circuit is arranged inside the pump casing, a hydraulic pump shaft is installed inside the pump casing, the stator is installed on the hydraulic pump shaft, and the stator is installed on the hydraulic pump shaft. The rotor is provided with a blade oil groove inside the rotor, the blade oil groove is installed with the blade, a flat key is installed in the key groove of the hydraulic pump shaft, a pump cover is installed on one side of the pump casing, and the A vane oil port is arranged inside the pump cover, and an independent gear pump is installed on one side of the vane oil port. 2. A new type of energy-saving hydraulic pump according to claim 1, characterized in that: the pump casing and the pump cover are fixedly connected by bolts, and the vane oil port inside the pump cover is connected to the pump cover through an oil pipe. Independent gear pump is connected. 3. A new type of energy-saving hydraulic pump according to claim 1, characterized in that: the inside of the pump housing is fixedly connected to the hydraulic pump shaft through a bearing, and the hydraulic pump shaft is fixedly connected to the stator through a bearing. 4. A new type of energy-saving hydraulic pump according to claim 1, characterized in that: the hydraulic pump shaft is fixedly connected to the rotor through a bearing, and the hydraulic pump shaft is mated with the rotor through the flat key , the vane is placed in the vane oil groove inside the rotor. 5. A new type of energy-saving hydraulic pump according to claim 1, characterized in that: the oil suction circuit is connected to the oil suction port, and the oil pressure circuit is connected to the oil pressure port.