JPS6095363U - Brake circuit of wheel-type hydraulic excavator - Google Patents
Brake circuit of wheel-type hydraulic excavatorInfo
- Publication number
- JPS6095363U JPS6095363U JP18911983U JP18911983U JPS6095363U JP S6095363 U JPS6095363 U JP S6095363U JP 18911983 U JP18911983 U JP 18911983U JP 18911983 U JP18911983 U JP 18911983U JP S6095363 U JPS6095363 U JP S6095363U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- valve
- brake
- tank
- switched
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Operation Control Of Excavators (AREA)
- Braking Systems And Boosters (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図はホイール式油圧ショベルの一例を示す側面図、
第２図は従来のホイール式油圧ショベルのブレーキ回路
を示す系統図、第３図はこの考案の一実施例を示す系統
図である。Figure 1 is a side view showing an example of a wheeled hydraulic excavator;
FIG. 2 is a system diagram showing a brake circuit of a conventional wheeled hydraulic excavator, and FIG. 3 is a system diagram showing an embodiment of this invention.
Claims (1)
り制御する作業ブレーキ兼サービスブレーキ装置とパー
キングブレーキ装置−とをそなえたホイール式油圧ショ
ベルにおいて、圧気タンクとして第一圧気タンクと第二
圧気タンクとを設け、足踏みペダルにより切替えるサー
ビスブレーキバ、ルブとレバーにより切替える作業ブレ
ーキバルブ、との入力ポートを第一給気管により第一圧
気タンクに連結し、レバーにより切替えるパーキングブ
レーキバルブの入力ポートを第二給気管により第二圧気
タンクに連結し、サービスブレーキバルブおよび作業ブ
レーキバルブの出力ポートを作業ブレーキ兼サービスブ
レーキ装置の制御部に接続し、パーキングブレーキバル
ブの出力ポートをパーキングブレーキ装置の制御部に接
続し、圧縮機と第二圧気タンクとを連結する管路に逆止
弁と電磁切替弁とを逆止弁を上流がわとして設け１．前
記電磁切替弁のソレノイドを第二給気管の圧力低下によ
り閉路する圧力スイッチに電気配線を介して接続し、圧
力スイッチの閉路により電磁切替弁が切替えられると圧
縮機からの圧気が第一圧気タン拳 りに供給されるように構成したことを特徴とするブレー
キ回路。[Scope of Claim for Utility Model Registration] In a wheeled hydraulic excavator equipped with a work brake/service brake device and a parking brake device that are controlled by the pressure in a pressure tank that stores pressure air from a compressor, a first pressure tank is used as the pressure tank. A parking brake that is equipped with a tank and a second pressure air tank, a service brake valve that is switched by a foot pedal, a work brake valve that is switched by a valve and a lever, and an input port that is connected to the first pressure tank by a first air supply pipe and switched by a lever. The input port of the valve is connected to the second pressure air tank by a second air supply pipe, the output port of the service brake valve and the work brake valve is connected to the control part of the work brake and service brake device, and the output port of the parking brake valve is connected to the parking brake valve. 1. A check valve and an electromagnetic switching valve are installed in a conduit connected to a control unit of a brake device and connecting a compressor and a second pressure tank, with the check valve as an upstream side.1. The solenoid of the electromagnetic switching valve is connected via electrical wiring to a pressure switch that closes when the pressure decreases in the second air supply pipe, and when the electromagnetic switching valve is switched by closing the pressure switch, pressure from the compressor is transferred to the first pressure tank. A brake circuit characterized in that the brake circuit is configured to be supplied to the brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18911983U JPS6095363U (en) | 1983-12-07 | 1983-12-07 | Brake circuit of wheel-type hydraulic excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18911983U JPS6095363U (en) | 1983-12-07 | 1983-12-07 | Brake circuit of wheel-type hydraulic excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6095363U true JPS6095363U (en) | 1985-06-28 |
Family
ID=30407821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18911983U Pending JPS6095363U (en) | 1983-12-07 | 1983-12-07 | Brake circuit of wheel-type hydraulic excavator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6095363U (en) |
-
1983
- 1983-12-07 JP JP18911983U patent/JPS6095363U/en active Pending
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