CN202809457U - Hydraulic device for forcibly opening brake of paver - Google Patents
Hydraulic device for forcibly opening brake of paver Download PDFInfo
- Publication number
- CN202809457U CN202809457U CN 201220409748 CN201220409748U CN202809457U CN 202809457 U CN202809457 U CN 202809457U CN 201220409748 CN201220409748 CN 201220409748 CN 201220409748 U CN201220409748 U CN 201220409748U CN 202809457 U CN202809457 U CN 202809457U
- Authority
- CN
- China
- Prior art keywords
- paver
- manual pump
- directional valve
- speed reducer
- brake
- 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 - Fee Related
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- Road Paving Machines (AREA)
Abstract
The utility model discloses a hydraulic device for forcibly opening the brake of a paver, belonging to the field of pavers. The hydraulic device comprises an electromagnetic directional valve and a speed reducer brake device, wherein the electromagnetic directional valve is connected with the speed reducer brake device via an oil tube. The hydraulic device further comprises a manual pump device, wherein the manual pump device is connected with the electromagnetic directional valve in parallel; and one end of the manual pump device is connected with the speed reducer brake device, and the other end of the manual pump device is connected with a hydraulic oil return port. The hydraulic device has the beneficial effect that the speed reducer is forcibly opened to brake in the case that the brake is locked to be incapable of working, so as to recover a normal travelling function of the paver.
Description
Technical field
The present invention relates to a kind of paver product, relate in particular to a kind of hydraulic means of paver positive opening brake, belong to the paver field.
Background technology
Paver is a kind of bituminous mixture evenly to be paved on roadbase, and carries out the machinery of preliminary jolt ramming and leveling.The brake of paver is being controlled the walking of paver, and brake is to be controlled by solenoid operated directional valve.Uncontrolled or when damaging when solenoid operated directional valve, brake can locking, causes paver to walk, and maintenance all becomes a difficult matter.
Summary of the invention
For the problem that above-mentioned prior art exists, the invention provides a kind of hydraulic means of paver positive opening brake, have when lock of controller can't be worked, open by force the reducer braking, recover the effect of paver normal row stop ﹠ go function.
To achieve these goals, the technical solution used in the present invention is: a kind of hydraulic means of paver positive opening brake, comprise that solenoid operated directional valve, braking device of speed reducer, solenoid operated directional valve connect braking device of speed reducer by oil pipe, also comprise manual pump device, manual pump device is in parallel with solenoid operated directional valve, and manual pump device one end connects braking device of speed reducer, other end connecting fluid pushes back hydraulic fluid port.
Described manual pump device comprises an one-way hydraulic pump, and the two ends of one-way hydraulic pump respectively connect an one way valve.
Described solenoid operated directional valve overflow valve in parallel.
The invention has the beneficial effects as follows: when lock of controller can't be worked, open by force the reducer braking, recover paver normal row stop ﹠ go function.
Description of drawings
Fig. 1 is hydraulic schematic diagram of the present invention;
Among the figure: 1, solenoid operated directional valve, 2, manual pump device, 3, overflow valve.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, the present invention includes solenoid operated directional valve 1, braking device of speed reducer, solenoid operated directional valve 1 by oil pipe connection braking device of speed reducer, also comprise manual pump device 2, manual pump device 2 is in parallel with solenoid operated directional valve 1, and manual pump device 2 one ends connect braking device of speed reducer, other end connecting fluid pushes back hydraulic fluid port; Manual pump device 2 comprises an one-way hydraulic pump, and the two ends of one-way hydraulic pump respectively connect an one way valve; Solenoid operated directional valve 1 overflow valve 3 in parallel.When solenoid operated directional valve 1 damaged or be uncontrolled, lock of controller can't be worked, and increased manual pump device 2 and can force pressure oil output, opened the reducer braking, recovered the walking function of paver.
Claims (3)
1. the hydraulic means of a paver positive opening brake, comprise that solenoid operated directional valve (1), braking device of speed reducer, solenoid operated directional valve (1) connect braking device of speed reducer by oil pipe, it is characterized in that, also comprise manual pump device (2), manual pump device (2) is in parallel with solenoid operated directional valve (1), and manual pump device (2) one ends connect braking device of speed reducer, other end connecting fluid pushes back hydraulic fluid port.
2. the hydraulic means of a kind of paver positive opening brake according to claim 1 is characterized in that, described manual pump device (2) comprises an one-way hydraulic pump, and the two ends of one-way hydraulic pump respectively connect an one way valve.
3. the hydraulic means of a kind of paver positive opening brake according to claim 1 is characterized in that, described solenoid operated directional valve (a 1) overflow valve (3) in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220409748 CN202809457U (en) | 2012-08-18 | 2012-08-18 | Hydraulic device for forcibly opening brake of paver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220409748 CN202809457U (en) | 2012-08-18 | 2012-08-18 | Hydraulic device for forcibly opening brake of paver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202809457U true CN202809457U (en) | 2013-03-20 |
Family
ID=47868367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220409748 Expired - Fee Related CN202809457U (en) | 2012-08-18 | 2012-08-18 | Hydraulic device for forcibly opening brake of paver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202809457U (en) |
-
2012
- 2012-08-18 CN CN 201220409748 patent/CN202809457U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20140818 |
|
| EXPY | Termination of patent right or utility model |