CN2851673Y - Two-position four-way rotary valve for controlling self-unloading vehicle hydraulic system - Google Patents
Two-position four-way rotary valve for controlling self-unloading vehicle hydraulic system Download PDFInfo
- Publication number
- CN2851673Y CN2851673Y CN 200520029048 CN200520029048U CN2851673Y CN 2851673 Y CN2851673 Y CN 2851673Y CN 200520029048 CN200520029048 CN 200520029048 CN 200520029048 U CN200520029048 U CN 200520029048U CN 2851673 Y CN2851673 Y CN 2851673Y
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- Prior art keywords
- valve
- passage
- hole
- control
- hydraulic system
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- Expired - Fee Related
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Abstract
The utility model relates to a two-position four-way rotary valve for controlling a hydraulic system of a self-unloading vehicle, which belongs to the technical field of mechanical manufacture. The two-position four-way rotary valve for controlling a hydraulic system of a self-unloading vehicle is composed of a valve body and a control valve, wherein the valve body is provided with an oil inlet hole, a working hole, a refluxing hole and a circulation hole; an admission passage is arranged between the oil inlet hole and the working hole; a return passage is arranged between the refluxing hole and the circulation hole; a control passage is arranged between the admission passage and the return passage; the control valve is arranged inside the control passage. The utility model combines the functions of a high and low pressure three-way iron pipe and a manual rotary valve into integration, furthest reduces the installation workload of the hydraulic system of the self-unloading vehicle, and is suitable for chassis of any specification. The utility model has the characteristics of flexible rise and fall method in controlling vehicle bodies, simple structure, small size and safe performance.
Description
Technical field:
The utility model belongs to machinery manufacturing technology field, is a kind of valve, further is a kind of rotary valve of controlling the dumping car hydraulic system.
Background technique:
The control mode of present domestic dumping car hydraulic system is mainly divided two classes, i.e. pneumatic control and manually control.Since pneumatic control have can not the regulated at will dumping car lifting and sinking speed, and mostly be " lifting of dying ", shortcomings such as driving safety difference are eliminated by market gradually.And manually control now becomes the main maneuverability pattern of dumping car hydraulic control system (particularly large-tonnage car) substantially because have act reduction of speed degree and the high characteristics of driving safety that can artificially regulate the compartment.
Manual control mode generally all is made up of parts such as gear pump, high low pressure threeway iron pipe, high low pressure sebific duct, manual rotary valve, oil hydraulic cylinder, fuel tanks.Its basic demand principle is exactly: by controlling the closed or open-minded of rotary valve, change the flow direction of hydraulic oil, make it or flow into oil cylinder and realize lifting, or flow to fuel tank realization body-lower.By changing the size of rotary valve spool latus rectum, can regulate the act reduction of speed degree of railway carriage.Though this system is no problem on principle, its shortcoming is the line arrangement complexity, and the shape of high low pressure threeway iron pipe will be according to different chassis and respective change, therefore, gives design, stores, and links such as installation have all been brought a lot of troubles.
Summary of the invention:
The technical problems to be solved in the utility model is the rotary valve that discloses control dumping car hydraulic system a kind of simple in structure, easy for installation.
The scheme of the utility model technical solution problem is to adopt valve body and control valve to constitute two four-way rotary valves of control dumping car hydraulic system, oil inlet hole, working hole, return port and circulation port are arranged on the valve body, between oil inlet hole and the working hole inlet passage is arranged, inlet passage is communicated with oil inlet hole and working hole, between return port and the circulation port return passage is arranged, return passage is communicated with return port and circulation port, between inlet passage and the return passage control channel is arranged, control channel is communicated with inlet passage and return passage, and control valve is contained in the control channel.Oil inlet hole connects oil pump, working hole connects the oil cylinder cavity of resorption, circulation port connects the oil cylinder epicoele, return port connects fuel tank, open control valve, control channel is open-minded, and the oil of oil pump output is through inlet passage, control channel and return passage flow back to fuel tank, closed control valve, control channel is obstructed, and the oil of oil pump output rises oil cylinder body lifting through inlet passage, and the oil of oil cylinder epicoele enters fuel tank through return passage, when needing the decline railway carriage, open control valve, the oil of oil cylinder cavity of resorption is under the effect of railway carriage deadweight, through inlet passage, control channel and return passage flow back to fuel tank, realize body-lower.
In order to make the rotary valve control section more can be convenient, flexible, have spool chamber in the control channel, control valve is a spool valve, and spool valve is in spool chamber, and spool chamber matches with spool valve.
In order to increase the Security of rotary valve, have spill cavity between inlet passage and the return passage, relief valve is housed in the spill cavity, when control valve is closed, when the valve body internal pressure was excessive, relief valve was opened automatically, and oil flows back to fuel tank by spill cavity.
The utility model is combined into one the function of high low pressure threeway iron pipe and manual rotary valve, has reduced the installation workload of dumping car hydraulic system to greatest extent, is applicable to the chassis of any specification.The mode of control railway carriage lifting is flexible, both can use flexible axle, linkage mechanism or compressed-air control rotary valve handle, realizes distant control, can manually directly control the rotary valve handle again and handle body lifting, and simple in structure, volume is little, and service behaviour is safe and reliable.
Description of drawings:
Fig. 1 is the utility model sectional view;
Fig. 2 is the linking route figure of the utility model and oil pump, fuel tank.
Embodiment:
The utility model is made of valve body 1 and control valve 2, oil inlet hole 3, working hole 4, return port 5 and circulation port 6 are arranged on the valve body 1, between oil inlet hole 3 and the working hole 4 inlet passage 7 is arranged, inlet passage 7 is communicated with oil inlet hole 3 and working hole 4, between return port 5 and the circulation port 6 return passage 8 is arranged, return passage 8 is communicated with return port 5 and circulation port 6, between inlet passage 7 and the return passage 8 control channel 9 is arranged, control channel 9 is communicated with inlet passage 7 and return passage 8, and control valve 2 is contained in the control channel 9.Oil inlet hole 3 connects oil pump 13, and working hole 4 connects oil cylinder 14 cavity of resorptions, and circulation port 6 connects oil cylinder 14 epicoeles, and return port 5 connects fuel tank 15.Have spool chamber 10 in the control channel 9, control valve 2 is a spool valve, and spool valve is in spool chamber 10, and spool chamber 10 matches with spool valve, has spill cavity 11 between inlet passage 7 and the return passage 8, and relief valve 12 is housed in the spill cavity 11.
Claims (3)
1, a kind of two four-way rotary valves controlling the dumping car hydraulic system, it is characterized in that: it is made of valve body and control valve, oil inlet hole, working hole, return port and circulation port are arranged on the valve body, between oil inlet hole and the working hole inlet passage is arranged, inlet passage is communicated with oil inlet hole and working hole, between return port and the circulation port return passage is arranged, return passage is communicated with return port and circulation port, between inlet passage and the return passage control channel is arranged, control channel is communicated with inlet passage and return passage, and control valve is contained in the control channel.
2, two four-way rotary valves according to claim 1 is characterized in that: have spool chamber in the control channel, control valve is a spool valve, and spool valve is in spool chamber, and spool chamber matches with spool valve.
3, two four-way rotary valves according to claim 1 and 2 is characterized in that: have spill cavity between inlet passage and the return passage, relief valve is housed in the spill cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520029048 CN2851673Y (en) | 2005-08-10 | 2005-08-10 | Two-position four-way rotary valve for controlling self-unloading vehicle hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520029048 CN2851673Y (en) | 2005-08-10 | 2005-08-10 | Two-position four-way rotary valve for controlling self-unloading vehicle hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2851673Y true CN2851673Y (en) | 2006-12-27 |
Family
ID=37585630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520029048 Expired - Fee Related CN2851673Y (en) | 2005-08-10 | 2005-08-10 | Two-position four-way rotary valve for controlling self-unloading vehicle hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2851673Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996549A (en) * | 2012-10-31 | 2013-03-27 | 无锡鸿声铝业有限公司 | Pressure reducing device for water pressure testing of rubber molding equipment |
-
2005
- 2005-08-10 CN CN 200520029048 patent/CN2851673Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996549A (en) * | 2012-10-31 | 2013-03-27 | 无锡鸿声铝业有限公司 | Pressure reducing device for water pressure testing of rubber molding equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Chaoyang District Changchun Xingsheng mould factory Assignor: Fengtao|Chen guo Contract fulfillment period: 2009.1.9 to 2015.8.10 Contract record no.: 2009220000002 Denomination of utility model: Two-position four-way rotary valve for controlling self-unloading vehicle hydraulic system Granted publication date: 20061227 License type: exclusive license Record date: 20090413 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.1.9 TO 2015.8.10; CHANGE OF CONTRACT Name of requester: CHANGCHUN CITY CHAOYANG DISTRICT XINGSHENG MOULD F Effective date: 20090413 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061227 Termination date: 20130810 |