JPS59142129U

JPS59142129U - Straight line compensator for hydraulic vehicles

Info

Publication number: JPS59142129U
Application number: JP3678483U
Authority: JP
Inventors: 一夫松田; 森田　紘一
Original assignee: 株式会社小松製作所
Priority date: 1983-03-16
Filing date: 1983-03-16
Publication date: 1984-09-22

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来例の説明図、第２図は本考案の実施例を示
す説明図、第３図・第４図・第５図は切換動作時の説明
図である。１．１′は油圧ポンプ、２．２′は油圧モータ、３．３
′は第１管路、４．４′は第２管路、５゜５′は左右油
圧駆動装置、６．６′は左右走行体、７．７′は短絡路
、８はイコライズ弁、１１はスプール、１３．．１３□
は第１・第２括れ部、１６１゜１６２は第１・第２孔、
１７．１８はキリ穴。FIG. 1 is an explanatory diagram of a conventional example, FIG. 2 is an explanatory diagram showing an embodiment of the present invention, and FIGS. 3, 4, and 5 are explanatory diagrams during switching operation. 1.1' is a hydraulic pump, 2.2' is a hydraulic motor, 3.3
' is the first pipe line, 4.4' is the second pipe line, 5°5' is the left and right hydraulic drive device, 6.6' is the left and right traveling body, 7.7' is the short circuit path, 8 is the equalization valve, 11 is the spool, 13. ．． 13□
are the first and second constrictions, 161° and 162 are the first and second holes,
17.18 is a hole.

Claims

[Scope of utility model registration request]

The hydraulic pump 1.1' and the hydraulic motors 2, 2' are connected to the first and second pipes 3. 3', 4. A pair of left and right hydraulic drive devices connected in a closed circuit at 4' 5. Left and right traveling bodies 6 at 5'
．． 6', the left and right first conduits 3.6' of the pair of left and right hydraulic drive devices 5.5'.
3' and the second conduit 4.4', respectively, are provided, and the first and second short circuit paths 7.7' are provided.
An equalizing valve 8 is provided, and a radial first hole 16 □ and a drilled hole 1 are provided in the spool 11 of the equalizing valve 8 to cut off the first short-circuit path 7 and the second short-circuit path 8, respectively.
7. Form the first constricted portion 131, the second radial hole 162, the drilled hole 18, and the second constricted portion 13□, and place the spool 11 in a communicating position with the spring 14/L//id 15. 1. A straight-line compensator for a hydraulic vehicle, characterized in that it is configured to be slidably switched between a cutoff position and a cutoff position.