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Steering gear pump

A steering gear and driving gear technology, applied in the direction of rotary piston pumps, pumps, pump components, etc., can solve the problems of being in a high temperature state, affecting the service life of the oil pump, and the heat can not be dissipated normally, so as to reduce the body surface temperature and increase the use. effect of life

Inactive Publication Date: 2012-07-04
长治液压有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this design is: medium or light-duty vehicles can meet the demand, heavy-duty vehicles require a large displacement steering pump, the flow of the oil pump is only half of the output (sometimes less than half), the excess flow is stored in the oil pump, and the heat generated cannot be dissipated normally , causing the temperature of the oil pump to be in a high temperature state for a long time, affecting the service life of the oil pump

Method used

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Examples

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Embodiment Construction

[0012] Such as figure 1 , figure 2 As shown, the steering gear pump of the present invention includes: a front cover 1, an intermediate body 2, a pump body 3, a rear cover 4, a driving gear 5, a driven gear 6, a transmission shaft 7 and a transmission gear 8, a rear cover 4, a pump body 3. The intermediate body 2 and the front cover 1 are installed together in turn, the driving gear 5 and the driven gear 6 are installed inside the pump body 3 and the driving gear 5 is meshed with the driven gear 6, and the transmission shaft 7 is sleeved in the front cover 1 through the bearing , one end of the transmission shaft 7 is connected with the central axis of the driving gear 5, and the other end of the transmission shaft 7 passes through the front cover 1 and is connected with the transmission gear 8; There is a slide valve 10, a throttling valve 11 is installed through threads in the oil outlet 9, and an oil return port 12 is also arranged on the back cover 4, and the oil return ...

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Abstract

The invention relates to a steering gear pump, belongs to the technical field of steering gear pumps, and aims to provide a steering gear pump which ensures that redundant flow is refluxed to an oil tank instead of an oil inlet so as to prolong the service life of an oil pump. According to the technical scheme, a rear cover, a pump body, an intermediate and a front cover are arranged together in turn; a driving gear and a driven gear are arranged in the pump body and meshed with each other; a transmission shaft is sleeved in the front cover through a bearing; one end of the transmission shaft is connected with a central shaft of the driving gear, and the other end of the transmission shaft penetrates through the front cover and is connected with a transmission gear; a sliding valve is arranged between an oil inlet and an oil outlet of the rear cover; a throttle valve is arranged in the oil outlet through a thread; and an oil return port is also formed on the rear cover and communicated with an oil tank. The steering gear pump can be in a normal working temperature state all the time, and the service life is prolonged.

Description

technical field [0001] The steering gear pump of the invention belongs to the technical field of steering gear pumps. Background technique [0002] Existing steering gear pumps generally have two oil ports, an oil inlet and an oil outlet. The oil pump is a constant flow pump. In order to ensure the constant flow function of the oil pump, an oil return port is designed in the back cover of the oil pump. When the flow rate is greater than the demand, the excess flow will directly return from the oil return port to the oil inlet port to achieve the function of constant flow. The disadvantage of this design is: medium or light-duty vehicles can meet the demand, while heavy-duty vehicles require a large-displacement steering pump. The flow of the oil pump is only half of the output (sometimes less than half), and the excess flow is stored in the oil pump, and the heat generated cannot be dissipated normally. , causing the temperature of the oil pump to be in a high temperature ...

Claims

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Application Information

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IPC IPC(8): F04C2/18F04C15/00
Inventor 李军江刘小东卫江潮成刚庄孟卫平
Owner 长治液压有限公司
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