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Opposed double hydraulic pump power take-off device for diesel engine

A technology of hydraulic pumps and diesel engines, which is applied in the direction of mechanical equipment, machines/engines, etc., can solve the problems of complex design of diesel engine gear trains, the need for overall replacement, and poor reliability, so as to save gear room space, reduce maintenance costs, and facilitate installation Effect

Active Publication Date: 2016-04-13
GUANGXI YUCHAI MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of these two structures are: 1. The structure of the double pump is complicated, the reliability is poor, and the manufacturing cost is high. After one set of hydraulic pumps is damaged, it needs to be replaced as a whole, and the maintenance cost is high; 2. The two sets of hydraulic pumps are independently arranged and driven independently. In this case, the two groups of hydraulic pumps need to design their own power take-off devices, the design of the diesel engine gear train is complex, and the diesel engine gear chamber and diesel engine compartment are required to have enough space

Method used

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  • Opposed double hydraulic pump power take-off device for diesel engine
  • Opposed double hydraulic pump power take-off device for diesel engine

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Embodiment Construction

[0019] Attached below figure 1 and figure 2 , describe in detail the specific implementation of the opposed dual hydraulic pump power take-off device for diesel engines of the present invention:

[0020] The spline sleeve 1 is provided with an inner spline and an outer spline, and the outer spline meshes with the inner spline of the hydraulic pump drive gear 7; the hydraulic pump drive gear 7 is press-fitted with a sliding bearing 6 and then fitted on the hydraulic pump gear shaft 2 ; The hydraulic pump gear shaft 2 is fixed on the diesel engine gear chamber 5 by bolts, and the O-ring 3 is used for sealing between the two.

[0021] One end of the outer spline of the spline sleeve 1 is provided with an axial limit convex circle, and the other end is provided with a retaining ring 8 installation groove; the hydraulic pump drive gear 7 is realized through the axial limit convex circle of the spline sleeve 1 and the retaining ring 8 Axial limit of the spline sleeve. The spacer...

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Abstract

The invention discloses a power takeoff device for oppositely-arranged double hydraulic pumps of a diesel engine. The power takeoff device comprises a hydraulic pump gear shaft, a hydraulic pump drive gear and a spline housing, wherein the hydraulic pump gear shaft is fixed to a gear chamber of the diesel engine, the hydraulic pump drive gear is provided with an internal spline and arranged on the hydraulic pump gear shaft in a sleeved mode after press fitting of a sliding bearing, the spline housing is provided with an internal spline and an external spline, and the external spline of the spline housing is meshed with the internal spline of the hydraulic pump drive gear. The hydraulic pumps can be oppositely connected to the two ends of the spline housing through a hydraulic pump installation hole in one end of the hydraulic pump gear shaft and a hydraulic pump installation hole in a gear chamber cover and meshed with the internal spline of the spline housing. The power takeoff device can achieve synchronous drive of the two hydraulic pumps, is simple in structure and convenient to install, and saves the space of the gear chamber of the diesel engine. In the use process, if one hydraulic pump goes wrong or is damaged, the hydraulic pump can be replaced independently, and therefore the maintenance cost is lowered.

Description

technical field [0001] The invention relates to a hydraulic pump power take-off device, in particular to an opposed double hydraulic pump power take-off device for a diesel engine. Background technique [0002] Machinery with diesel engines as the main power is generally equipped with hydraulic auxiliary devices, and some diesel engines need to arrange two or more sets of hydraulic pumps to provide hydraulic oil for the hydraulic auxiliary devices of the machinery. For example, some large and medium-sized wheeled tractors require the diesel engine to be equipped with two sets of hydraulic pumps, one set is used for the hydraulic auxiliary steering system of the tractor, and the other set is used for the hydraulic suspension device of the tractor. [0003] When a traditional diesel engine is arranged with two sets of hydraulic pumps, there are generally two options: one is to set up a power take-off device and install a double pump; the other is to set up two independent powe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B63/06
Inventor 赵增亮肖耿黄晓毅陈路谭达辉陈剑涛
Owner GUANGXI YUCHAI MASCH CO LTD
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