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A motor built-in gear pump

A built-in, gear pump technology, applied in the field of oil pumps and gear pumps, can solve the problems of shaft vibration, large volume of oil pumps, high coaxiality requirements, etc., and achieve the effect of avoiding energy loss, more compact structure, reasonable and perfect structure

Active Publication Date: 2020-05-08
ZHE JIANG CHEERING SEWING MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such an oil pump has a large volume and requires high coaxiality between the motor and the driving gear, which is prone to shaft vibration and damage to the pump

Method used

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  • A motor built-in gear pump
  • A motor built-in gear pump
  • A motor built-in gear pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1: as figure 1 As shown, a pair of rotary gears are installed in the pump body 1 of the oil pump, one is the active rotary gear 2, and the other is the passive rotary gear 6. The two rotary gears mesh with each other, and the entire working chamber in the pump is divided into two independent parts. A is the suction chamber 5, and B is the discharge chamber 7. When the gear oil pump is in operation, the active rotary gear 2 drives the passive rotary gear 6 to rotate.

[0013] Such as figure 2 , 3 As shown, the side body of the pump body 1 is provided with a non-penetrating shaft hole, the driving rotary gear 2 is tubular, and the side is closed with a side plate 10 to make it a barrel shape. The outer central axis of the side plate 10 is provided with The protruding shaft 11 is used as a fulcrum, so that it can cooperate with the non-penetrating shaft hole on the inner wall of the pump body 1 shell to become a fulcrum of rotation. The inner side of the side...

Embodiment 2

[0017] Embodiment 2: as Figure 5 As shown, a pair of rotary gears are installed in the pump body 1 of the oil pump, one is the active rotary gear 2, and the other is the passive rotary gear 6. The two rotary gears mesh with each other, and the entire working chamber in the pump is divided into two parts—suction Chamber 5 and discharge chamber 7, when the gear oil pump is running, the active rotary gear 2 drives the passive rotary gear 6 to rotate.

[0018] A shaft hole is arranged on the side of the pump body 1 corresponding to the driving rotary gear 2, and the shaft hole is used for fixing and installing the motor shaft 8.

[0019] The inner cavity of the driving rotary gear 2 is processed into a barrel shape, the bottom wall is provided with a shaft hole, and the magnetic steel 3 is pasted on the peripheral wall of the inner cavity, and the rotating shaft of the motor passes through the shaft hole of the bottom wall of the driving rotary gear 2, and is connected to the pum...

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Abstract

The invention discloses a gear pump internally provided with a motor. In the gear pump constituted by two rotating gears, the external rotor motor is placed into an inner cavity of the driving gear, so that the motor of the gear pump and a pump body are combined into a whole, and the structure of the gear pump is more compact, reasonable and perfect. The size is reduced, so that the requirements for using the gear pump in certain specific narrow spaces are met, and the extra energy loss, the part loss, the pressure pulse and noise which are caused when a power system is connected with input radial force are completely avoided.

Description

technical field [0001] The invention relates to an oil pump, in particular to a gear pump, which belongs to the field of mechanical tools. Background technique [0002] The gear pump is an oil pump that uses two gears to rotate with each other. The gear pump is equipped with a pair of rotary gears in the pump body, one is active and the other is passive. Depending on the mutual meshing of the two gears, the entire working chamber in the pump is divided into two parts. Separate parts: A is the suction chamber, B is the discharge chamber. When the gear oil pump is running, the driving gear drives the passive gear to rotate, and when the gear is engaged to disengaged, a partial vacuum is formed on the suction side (A), and the liquid is sucked. The sucked liquid is filled with each tooth valley of the gear and brought to the discharge side (B). When the gears are engaged, the liquid is squeezed out to form a high-pressure liquid and is discharged out of the pump through the pu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C2/18F04C11/00
CPCF04C2/18F04C11/008
Inventor 赵乾麟柳文
Owner ZHE JIANG CHEERING SEWING MASCH CO LTD
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