CN201566603U - Braking system of tyre road roller - Google Patents

Braking system of tyre road roller Download PDF

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Publication number
CN201566603U
CN201566603U CN2009202797605U CN200920279760U CN201566603U CN 201566603 U CN201566603 U CN 201566603U CN 2009202797605 U CN2009202797605 U CN 2009202797605U CN 200920279760 U CN200920279760 U CN 200920279760U CN 201566603 U CN201566603 U CN 201566603U
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CN
China
Prior art keywords
valve
oil
brake
pump
cylinder
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.)
Expired - Lifetime
Application number
CN2009202797605U
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Chinese (zh)
Inventor
陈昊
郭启华
修占伟
韦永清
黄宁波
邢占锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liugong Wuxi Road Surface Machinery Co., Ltd.
Original Assignee
JIANGYIN LIUGONG ROAD MACHINERY CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by JIANGYIN LIUGONG ROAD MACHINERY CO Ltd filed Critical JIANGYIN LIUGONG ROAD MACHINERY CO Ltd
Priority to CN2009202797605U priority Critical patent/CN201566603U/en
Application granted granted Critical
Publication of CN201566603U publication Critical patent/CN201566603U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a braking system of a tyre road roller, which comprises a side box operation handle (1), a valve (2), a gear oil pump (3), a plunger pump (4), a valve (5), a valve (6), a plunger motor (7), a wheel rim brake (8), an axle brake (9) and an oil tank (10), wherein an oil outlet of the gear oil pump (3) is communicated with an oil inlet of the valve (2), a working oil port of the valve (2) is connected to a diverter, an oil return port of the valve (2) is connected to an oil inlet of the valve (6), a working oil port of the valve (6) is connected to a rod cavity of a wheel rim braking hydro-cylinder (8.1), one way of a slippage pump (4.1) of the plunger pump (4) is led out to the valve (5) which is connected to an axle braking hydro-cylinder (9.1), and a position switch is arranged on the side box operation handle (1). The braking system of tyre road roller realizes single-rod operation through hydraulic control, thereby leading the tyre road roller to brake, and the better effects of reliable running, simple operation and low cost can be achieved.

Description

The brake system of pneumatic tyred roller
(1) technical field
The utility model relates to a kind of brake system of pneumatic tyred roller, is specifically related to a kind of method and corresponding system of service brake of pneumatic tyred roller.Belong to technical field of engineering machinery.
(2) background technology
Traditional pneumatic tyred roller is to add mechanical braking by the gas circuit braking to realize.This mechanism is widely used on the mechanical type pneumatic tyred roller, but its maximum shortcoming is its structure more complicated, needs to increase separately a cover gas circuit brake system, and cost also strengthens operator's labour intensity when increasing.Though this cover brake system can be suitable on all-hydraulic pneumatic tyred roller equally, complex structure brings inconvenience to the operator after all.
(3) summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of brake system of the pneumatic tyred roller reliable, simple in structure, simple to operate and with low cost that turns round is provided.
The purpose of this utility model is achieved in that a kind of brake system of pneumatic tyred roller, is made up of limit case bar handle, valve, geared oil pump, plunger pump, valve, valve, piston motor, rim brake, bridge drg and fuel tank;
Described rim brake comprises wheel edge trig oil cylinder and wheel edge trig sheet, and the piston rod of wheel edge trig oil cylinder links to each other with wheel edge trig sheet, and the bridge drg comprises bridge brake cylinder and brake facing, and the piston rod of bridge brake cylinder links to each other with brake facing;
Described geared oil pump oil inlet is connected with fuel tank, oil outlet is connected with the oil inlet of valve, and the actuator port of valve is connected to deflector, and the return opening of valve is connected to the oil inlet of valve, the actuator port of valve is connected to described rod chamber of taking turns the edge trig oil cylinder, and the return opening of valve is connected to fuel tank;
Draw one the tunnel in the slippage pump of described plunger pump and remove valve, valve is connected to the rod chamber of described bridge brake cylinder;
The handle of described limit case bar handle is provided with travel switch, and the trip switch sent the break-make that signal comes the control cock oil circuit when limit case operating handle began to move.When limit case operating handle returned meta, the trip switch stopped give a signal, and valve events makes the fluid in the oil pipe send oil sump tank.
The brake system of the utility model pneumatic tyred roller comprises stopping brake and service brake two parts, mainly realizes the break-make of oil circuit by electrical signal modulated pressure valve, and then realizes the complete machine braking.Described stopping brake realizes by the drg on the drive axle that mainly when driving engine was not worked, the locking simultaneously of bridge drg on the drive axle and rim brake realized braking thereby the assurance drive axle can't rotate.When driving engine is worked at the beginning, plunger pump just has flow output, at this moment draws one section oil circuit from plunger pump and goes the brake facing on the bridge drg pushed open and remove the bridge braking and the wheel edge trig is not opened.Can guarantee the Parking downslide problem of vehicle when the slope by actv. like this.
The service brake case bar handle that mainly keeps to the side makes machine action, on the case bar handle of limit the one stroke switch is arranged, and when limit case bar handle promptly is equivalent to dead ship condition at meta the time, this moment, rim brake still was in the locking state.Thereby when handle be in advance or when retreating grade travel switch send the signal control hydraulic valve immediately and open and make the hydraulic oil that behind valve, forms one road regime flow of drawing from geared oil pump open rim brake to realize that the wheel edge trig removes.
The utility model can reach running good result reliable, simple to operate, with low cost by above technical scheme.Adopt the utility model can optimize product structure, reduce manufacturing cost and purchase cost, the utility model adopts single swinging boom can improve the degree of automation of machine and operator's driving comfort simultaneously.Native system may extend to other construction machinery product simultaneously.
(4) description of drawings
Fig. 1 is the hydraulic principle block diagram of the brake system of the utility model pneumatic tyred roller.
Among the figure:
Limit case bar handle 1, electric control circuit 1.1, valve 2, geared oil pump 3, plunger pump 4, valve 5, valve 6, piston motor 7, rim brake 8, brake cylinder 8.1, wheel edge trig sheet 8.2, bridge drg 9, bridge brake cylinder 9.1, brake facing 9.2, fuel tank 10, deflector 11.
(5) specific embodiment
Referring to Fig. 1, Fig. 1 is the hydraulic principle block diagram of the brake system of the utility model pneumatic tyred roller.As seen from Figure 1, the brake system of the utility model pneumatic tyred roller is by limit case bar handle 1, valve 2, geared oil pump 3, plunger pump 4, valve 5, valve 6, piston motor 7, rim brake 8, comprise that bridge drg 9 and fuel tank 10 form.
Described rim brake 8 comprises wheel edge trig oil cylinder 8.1 and wheel edge trig sheet 8.2, the piston rod of wheel edge trig oil cylinder 8.1 links to each other with wheel edge trig sheet 8.2, bridge drg 9 comprises bridge brake cylinder 9.1 and brake facing 9.2, and the piston rod of bridge brake cylinder 9.1 links to each other with brake facing 9.2;
Described geared oil pump 3 oil inlets are connected with fuel tank 10, oil outlet is connected with the oil inlet of valve 2, and the actuator port of valve 2 is connected to deflector, and the return opening of valve 2 is connected to the oil inlet of valve 6, the actuator port of valve 6 is connected to described rod chamber of taking turns edge trig oil cylinder 8.1, and the return opening of valve 6 is connected to fuel tank 10;
Draw one the tunnel in the slippage pump 4.1 of described plunger pump 4 and remove valve 5, valve 5 is connected to the rod chamber of described bridge brake cylinder 9.1;
The handle of described limit case bar handle 1 is provided with travel switch, and the trip switch is by the break-make of electric control circuit 1.1 control cock 6 oil circuits.
When engine ignition, the power input is started working plunger pump 4 and geared oil pump 3, draws one tunnel low pressure oil this moment and go valve 5 to remove the braking of bridge drg 9 from the slippage pump of plunger pump.And this moment is because not action of limit case operating handle 1 is directly got back to fuel tank from the hydraulic oil that geared oil pump 3 comes out through valve 2.Rim brake 8 is not opened, and complete machine is appointed and is in braking mode.When limit case operating handle 1 begins to move, touch the travel switch on the handle and send the break-make that signal comes control cock 6 oil circuits, come out stable flow rate to rim brake 8 and then releasing wheel edge trig thereby make from valve 2.When 1 time meta of limit case operating handle, travel switch stops give a signal, thereby makes valve 6 actions make the fluid in the oil pipe send oil sump tank.Thereby realize braking again.
The example of the above is a preferred embodiments of the present utility model only, is not that this limits practical range of the present utility model, so all equivalences of doing according to the method and the principle of utility model change, evenly should be covered by protection domain of the present utility model.

Claims (1)

1. the brake system of a pneumatic tyred roller is characterized in that described system is made up of limit case bar handle (1), valve (2), geared oil pump (3), plunger pump (4), valve (5), valve (6), piston motor (7), rim brake (8), bridge drg (9) and fuel tank (10);
Described rim brake (8) comprises wheel edge trig oil cylinder (8.1) and wheel edge trig sheet (8.2), the piston rod of wheel edge trig oil cylinder (8.1) links to each other with wheel edge trig sheet (8.2), bridge drg (9) comprises bridge brake cylinder (9.1) and brake facing (9.2), and the piston rod of bridge brake cylinder (9.1) links to each other with brake facing (9.2);
Described geared oil pump (3) oil inlet is connected with fuel tank (10), oil outlet is connected with the oil inlet of valve (2), the actuator port of valve (2) is connected to deflector, the return opening of valve (2) is connected to the oil inlet of valve (6), the actuator port of valve (6) is connected to described rod chamber of taking turns edge trig oil cylinder (8.1), and the return opening of valve (6) is connected to fuel tank (10);
Draw one the tunnel in the slippage pump (4.1) of described plunger pump (4) and remove valve (5), valve (5) is connected to the rod chamber of described bridge brake cylinder (9.1);
The handle of described limit case bar handle (1) is provided with travel switch, limit case operating handle (1) is when the trip switch sends break-make limit case operating handle (1) that signal comes control cock (6) oil circuit and returns meta when beginning to move, the trip switch stops give a signal, and valve (6) action makes the fluid in the oil pipe send oil sump tank.
CN2009202797605U 2009-11-15 2009-11-15 Braking system of tyre road roller Expired - Lifetime CN201566603U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009202797605U CN201566603U (en) 2009-11-15 2009-11-15 Braking system of tyre road roller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009202797605U CN201566603U (en) 2009-11-15 2009-11-15 Braking system of tyre road roller

Publications (1)

Publication Number Publication Date
CN201566603U true CN201566603U (en) 2010-09-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009202797605U Expired - Lifetime CN201566603U (en) 2009-11-15 2009-11-15 Braking system of tyre road roller

Country Status (1)

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CN (1) CN201566603U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101708719B (en) * 2009-11-15 2012-09-05 柳工无锡路面机械有限公司 Braking system of tyre roller
CN110803145A (en) * 2019-11-12 2020-02-18 三一汽车制造有限公司 Braking system of road roller, road roller and control method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101708719B (en) * 2009-11-15 2012-09-05 柳工无锡路面机械有限公司 Braking system of tyre roller
CN110803145A (en) * 2019-11-12 2020-02-18 三一汽车制造有限公司 Braking system of road roller, road roller and control method
CN110803145B (en) * 2019-11-12 2021-06-15 三一汽车制造有限公司 Braking system of road roller, road roller and control method

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: LIUGONG WUXI ROAD MACHINERY CO., LTD.

Free format text: FORMER NAME: LIUGONG HIGHWAY MACHINERY CO LTD, JIANGYIN CITY

CP03 Change of name, title or address

Address after: 214444 Jiangsu Jiangyin Lingang New Town machinery equipment Industrial Park

Patentee after: Liugong Wuxi Road Surface Machinery Co., Ltd.

Address before: 214422, 155 Gu Gu Road, Jiangyin, Jiangsu

Patentee before: Jiangyin Liugong Road Machinery Co., Ltd.

AV01 Patent right actively abandoned

Granted publication date: 20100901

Effective date of abandoning: 20091115