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Used for hydraulic systems on power transmission units of horizontal directional drilling rigs

A technology of power transmission device and horizontal directional drilling rig, which is applied in the field of hydraulic system, can solve the problems of small speed change range, large number of parts, complex structure, etc., and achieve the effect of large speed change range, small number of parts and simplified transmission chain

Inactive Publication Date: 2011-12-14
JIANGSU GOODENG ENG MACHINERY ASSEMBLING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The power transmission device of the existing horizontal directional drilling rig has a complex structure, a large number of parts, high cost, long transmission chain, high failure rate, and small speed change range

Method used

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  • Used for hydraulic systems on power transmission units of horizontal directional drilling rigs
  • Used for hydraulic systems on power transmission units of horizontal directional drilling rigs
  • Used for hydraulic systems on power transmission units of horizontal directional drilling rigs

Examples

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Embodiment Construction

[0011] The specific content of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0012] Such as figure 1 As shown, the hydraulic system used on the power transmission device of the horizontal directional drilling rig includes: a gear pump 2 connected through a pipeline 1, a first electromagnetic reversing switch 3, a second electromagnetic reversing switch 4, a load sensing pump 5, a second electromagnetic reversing switch Three electromagnetic reversing switches 6 , a fourth electromagnetic reversing switch 7 and four orbital motors 8 .

[0013] When the power head is pushed and pulled, the gear pump 2 or the load sensitive pump 5 is used to drive the cycloidal motor 8, and the series and parallel connection of the cycloidal motor 8 are guaranteed through the power-on and power-off of the electromagnetic reversing valve to ensure the high, medium and Low three speeds and their speed ratio is 3:2...

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Abstract

The invention discloses a hydraulic system for a power transmission device of a horizontal directional drilling rig capable of realizing three push-pull speeds, comprising: a gear pump connected through pipelines, a first electromagnetic reversing switch, a second electromagnetic reversing switch, Load sensing pump, third electromagnetic reversing switch, fourth electromagnetic reversing switch and four orbital motors. The advantages are: the above-mentioned hydraulic system can realize three push-pull speeds when used in the power transmission device of the horizontal directional drilling rig, and the hydraulic motor is directly driven through the rack and pinion, with a large speed range, a simple structure, and a small number of parts, which simplifies the transmission chain and reduces Reduce the cost and reduce the failure rate to meet the needs of engineering construction.

Description

technical field [0001] The invention relates to a power transmission device of a horizontal directional drilling machine, in particular to a hydraulic system used in the power transmission device of a horizontal directional drilling machine. Background technique [0002] At present, the power transmission device of the horizontal directional drilling rig adopts: hydraulic oil-hydraulic motor-reducer-pinion rack transmission. The power transmission device of the existing horizontal directional drilling machine has complex structure, many parts, high cost, long transmission chain, high failure rate and small speed change range. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a hydraulic system for a power transmission device of a horizontal directional drilling machine capable of realizing three push-pull speeds. [0004] In order to solve the above-mentioned technical problems, the technical solution adopted by t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B4/00F15B15/18
Inventor 陈凤钢
Owner JIANGSU GOODENG ENG MACHINERY ASSEMBLING
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