一种大排量的单向摆线油泵

Abstract

本实用新型涉及单向摆线油泵技术领域，公开了一种大排量的单向摆线油泵，包括泵体和盖板，所述泵体的顶部螺纹连接有独立调压机构，所述泵体的后端插接有前油封，所述前油封的后端卡接有油封垫片，所述泵体的后端插接有后轴承一，所述泵体的后端插接有后轴承二。本实用新型通过设置油泵带有独立调压机构，可调节控制油泵输出的压力和内部压力，降低高速运行时因内部压力过大而引起的温升，提高油泵使用寿命，泵轴两头采用双轴承承载结构，泵轴中部两侧采用单个无油衬套承载结构，跟小排量单向摆线油泵泵轴两头用单轴承承载，泵轴中部无承载的结构对比，此大排量单向摆线油泵大大提高了泵轴的承载性，使得油泵稳定性更强，提高了油泵使用寿命。

Claims

1. A large displacement unidirectional gerotor pump characterized by, Including pump body (1) and cover plate (16), the top of the pump body (1) is threadedly connected with an independent pressure regulating mechanism (2), the rear end of the pump body (1) is inserted with a front oil seal (3), the rear end of the front oil seal (3) is clamped with an oil seal gasket (4), the rear end of the pump body (1) is inserted with a rear bearing one (5), the rear end of the pump body (1) is inserted with a rear bearing two (6), the rear end of the rear bearing two (6) is clamped with a hole stop ring (7); The front of the pump body (1) is inserted with an oilless bushing one (8), the front of the pump body (1) is inserted with a positioning pin (9), the front of the pump body (1) is inserted with an O-shaped ring (10), the inside of the O-shaped ring (10) is inserted with an outer rotor (11), the inside of the outer rotor (11) is engaged with an inner rotor (12), the surface of the inner rotor (12) is fixedly connected with a pump shaft (13), the top of the inner rotor (12) is inserted with a flat key (14), the front of the inner rotor (12) is inserted with a shaft stop ring (15), the front of the pump body (1) is threadedly connected with a bolt one (17), the surface of the bolt one (17) is threadedly connected with a bolt one (17), the front of the cover plate (16) is inserted with a rear oil seal (18), the front of the rear oil seal (18) is inserted with a front bearing one (19), the front of the bolt one (17) is inserted with a front bearing two (20), the front of the cover plate (16) is clamped with a bearing gasket (21), the inside of the bearing gasket (21) is threadedly connected with a bolt two (23), the surface of the bolt two (23) is threadedly connected with a rear cover (22).

2. A large capacity one-way gerotor pump as claimed in claim 1, characterized in that: The oil seal gasket (4) is located in the inside of the pump body (1), the rear bearing one (5) is located in the inside of the pump body (1), and the rear bearing two (6) is located at the rear end of the oil seal gasket (4).

3. A large capacity one-way gerotor pump as claimed in claim 1, characterized in that: The number of the positioning pin (9) is two, the two positioning pins (9) are symmetrically distributed above and below with the oilless bushing one (8) as the center, and the inner rotor (12) is located in the inside of the pump body (1).

4. A large capacity one-way gerotor pump as claimed in claim 1, characterized in that: The number of the flat key (14) is two, the two flat keys (14) are symmetrically distributed front and back with the inner rotor (12) as the center, and the flat key (14) is located in the inside of the pump body (1).

5. A large capacity one-way gerotor pump as claimed in claim 1, characterized in that: The bolt one (17) extends to the inside of the pump body (1) through the cover plate (16), and the number of the bolt one (17) is several, and the several bolt ones (17) are symmetrically distributed with the cover plate (16) as the center.

6. A large capacity one-way gerotor pump as claimed in claim 1, characterized in that: The rear oil seal (18) is located on the front of the pump body (1), the front bearing two (20) is located on the front of the cover plate (16), and the rear end of the bearing gasket (21) is in surface contact with the front surface of the front bearing two (20).

7. A large capacity one-way gerotor pump as claimed in claim 1, characterized in that: The bolt two (23) extends to the inside of the cover plate (16) through the rear cover (22) and the bearing gasket (21), and the rear cover (22) is located on the front of the cover plate (16).

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