Double-oil-outlet speed variable gear pump

A technology of variable speed gear and oil outlet, applied in the field of hydraulic pump, can solve the problems of pump displacement, oil suction capacity, oil outlet setting can not meet the requirements, complex connection structure of front and rear pumps, large pump volume, etc. Performance requirements, the effect of reducing installation space

Inactive Publication Date: 2011-08-17
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

[0002] At present, the pump body structure of the existing large-flow double-oil circuit low-pressure hydraulic variable-speed gear pump mainly includes: two sets of pump front covers, pump back covers, and pump bodies. Two oil inlets, two oil outlets, pump displacement, oil absorption capacity, and oil outlet settings cannot meet the requirements

Method used

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  • Double-oil-outlet speed variable gear pump
  • Double-oil-outlet speed variable gear pump

Examples

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Embodiment Construction

[0011] as attached figure 1 As shown, the double oil outlet variable speed gear pump is divided into a front pump assembly and a rear pump assembly as a whole. The front pump assembly includes the front pump driving gear 1, the front cover assembly 3, the first side plate 6, and the second side Plate 7, front pump driven gear 4, front pump body 8; rear pump assembly includes rear pump body 10, rear pump driving gear 12, rear pump driven gear 13, rear cover assembly 11, third side plate 17, The fourth side plate 14.

[0012] The whole gear pump is a front pump assembly and a rear pump assembly. The front and rear pump assemblies are connected through the front pump body 8. The connecting part of the rear pump driving gear 12 and the front pump driving gear is designed as an internal spline, which is connected with the front pump. The external spline of the driving gear 1 is used in conjunction with it, as attached image 3 As shown, the front pump body 8 is provided with a co...

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Abstract

The invention discloses a double-oil-outlet speed variable gear pump, which belongs to the technical field of hydraulic pumps. The problem to be solved is to provide a low-pressure double-oil-outlet speed variable gear pump which is suitable for a bulldozer, is provided with two oil outlets and an oil inlet and has high flow. The technical scheme is that: a front pump assembly and a rear pump assembly are connected with each other through a front pump body; an internal spline is arranged on the connection part between a rear pump driving gear and a front pump driving gear, and is used together with an external spline of the front pump driving gear in a matching way; a front and rear pump shared general oil inlet is formed on the front pump body; and a front pump oil outlet and a rear pump oil outlet are formed on the end face of a front cover assembly respectively. The pump can be widely applied to speed-variable gear pumps.

Description

technical field [0001] The invention relates to a variable-speed gear pump with double oil outlets, belonging to the technical field of hydraulic pumps. Background technique [0002] At present, the pump body structure of the existing large-flow double-oil circuit low-pressure hydraulic variable-speed gear pump mainly includes: two sets of pump front covers, pump back covers, and pump bodies. Two oil inlets, two oil outlets, pump displacement, oil suction capacity, and oil outlet settings cannot meet the requirements. Contents of the invention [0003] The invention overcomes the deficiencies of the prior art and provides a low-pressure dual-oil-circuit speed-changing gear pump suitable for bulldozers with two oil outlets, one oil inlet and large flow. [0004] Double oil outlet variable speed gear pump, the whole is divided into front pump assembly and rear pump assembly, the front pump assembly includes front pump driving gear, front cover assembly, first side plate, se...

Claims

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Application Information

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IPC IPC(8): F04C2/18
Inventor 张春林李军江孟卫平刘小东张志云安桂红李旭慧
Owner 长治液压有限公司
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