Low-noise long-life turning internal gear pump and manufacturing method thereof

An internal meshing gear pump, a long-life technology, applied in the field of gear transmission, can solve the problems of inability to turn, inconvenience, installation, use and promotion restrictions of internal meshing gear pumps, and achieve the effect of easy installation and promotion

CN104564654AInactive Publication Date: 2015-04-29上海裕顺机械厂
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2015-04-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to the technical field of gear transmission, in particular to an internal gear pump and a manufacturing method thereof. A low-noise long-life turning internal gear pump comprises a driving shaft, an oil inlet pump body, an intermediate pump body and an oil draining pump body, wherein an oil draining port in the oil draining pump body is formed in the right side surface of the oil draining pump body; an oil distributing disc is detachably arranged on the right side surface of the oil draining pump body; four oil outlet tanks are formed in the left side surface of the oil distributing disc; an oil outlet passage is further formed inside the oil distributing disc; the four oil outlet tanks are mutually communicated and then are communicated with the oil outlet passage; one of the four oil outlet tanks is communicated with the oil draining passage, and sealing rings are arranged on the other three oil outlet tanks. Due to adoption of the technical scheme, through additional arrangement of the oil distributing disc, an oil passage has the advantage: a simple unidirectional outlet becomes arbitrary outlets in four directions.
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Description

technical field

[0001] The invention relates to the technical field of gear transmission, in particular to an internal meshing gear pump and a manufacturing method thereof. Background technique

[0002] The linear conjugate internal gear pump is one of the latest technical equipment of the hydraulic system equipment. It is widely used in the industrial field because of its significant advantages such as quietness, long life, and no trapped oil.

[0003] refer to figure 1 , the existing internal gear pump generally includes a pump body with an inner hole, the pump body is connected by bolts from the oil inlet pump body 1, the middle pump body 5 and the oil discharge pump body 6, and also includes a drive shaft 15, a front cover 17, and an oil seal 18 , gear 10, ring gear 4, DU bearing 11, O-ring 20, and rear cover 21. When the gear pump is working, the hydraulic oil flows in from the oil inlet on the oil inlet pump body 1, enters the oil suction chamber, and is brought into...

Examples

Embodiment Construction

[0038] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific diagrams.

[0039] refer to figure 2 , image 3 , low noise and long life steering internal gear pump, including oil inlet pump body 1, rolling bearing 2, O-ring seal 3, ring gear 4, intermediate pump body 5, oil discharge pump body 6, oil distribution plate 7, O-ring seal 8 , Flat key 9, gear 10, DU bearing 11, shaft circlip 12, O-ring 13, screw 14, drive shaft 15, flat key 16, front cover 17, oil seal 18, screw 19.

[0040] refer to Figure 4 , Figure 5 The oil inlet pump body 1 is provided with an oil inlet and an oil inlet channel, and the oil discharge pump body 6 is provided with an oil discharge port 61 and an oil discharge channel, and the oil discharge port 61 is arranged on the right side of the oil discharge pump body 6 . The right side of the o...