CN2234520Y - Hydraulic assemply by combining gear pump with hand change-over valve - Google Patents
Hydraulic assemply by combining gear pump with hand change-over valve Download PDFInfo
- Publication number
- CN2234520Y CN2234520Y CN 94246245 CN94246245U CN2234520Y CN 2234520 Y CN2234520 Y CN 2234520Y CN 94246245 CN94246245 CN 94246245 CN 94246245 U CN94246245 U CN 94246245U CN 2234520 Y CN2234520 Y CN 2234520Y
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- CN
- China
- Prior art keywords
- gear pump
- hydraulic
- valve
- hand
- oil
- 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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Abstract
The utility model discloses a hydraulic assembly integrated by a hand change valve and a gear pump. An overflow valve 2 and the hand change valve 3 are directly designed on the end cover of the gear pump 1. Therefore, the three hydraulic elements are combined to form an integral body and become an assembly 8. Oil passages among the elements are communicated by oil ducts in the inner portion of the assembly according to system requirements. When the hydraulic assembly integrated by a hand change valve and a gear pump is used, the hydraulic assembly integrated by a hand change valve and a gear pump is communicated with an oil cylinder 5 and an oil tank 6 by oil pipes 4 and 7, and a hydraulic system can be formed. Therefore, the oil passages are simplifies, and the faults of the hydraulic system caused by the pipeline leakage are reduced.
Description
The utility model belongs to hydraulic transmission and control field, is a kind of assembly parts that the set of Hydraulic power units and control unit is formed, especially by the hand-operated direction valve and the integrated assembly parts of gear pump of carry potential overflow valve.
At present, the agricultural transportation vehicle or the tractor transportation unit of hydraulic pressure dumping device is housed, its hydraulic system is formed by connecting by hand-operated direction valve, one-way cylinder, fuel tank and some oil pipes, the joint of gear pump, carry potential overflow valve usually.They all are some independently hydraulic element, and have been commercial approved product mostly.---gear pump, gear pump---hand-operated direction valve, hand-operated direction valve---oil cylinder and hand-operated direction valve---connection between the fuel tank that existing problems are to need four oil pipes and eight butt joints at least, could realize fuel tank.Because these hydraulic element are separated by far on complete machine, also have certain relative movement each other, therefore, oil pipe is generally longer, and usually needs the hydraulic hose that adopts price higher relatively.
The purpose of this utility model is to provide a kind of hand-operated direction valve gear pump assembly parts, makes it become a hydraulic system suitable with the existing system function.Simplified oil circuit, reduced hydraulic system because the fault that pipeline leakage causes.
The 3-position-3-way hand-operated direction valve that the utility model will have a relief valve directly is designed to the end cap of gear pump, has one between valve and the pump in conjunction with the plane, thus the assembly parts that to cause a collection relief valve, hand-operated direction valve and three hydraulic element of gear pump be one.Have the hydraulic fluid port that is connected with other hydraulic parts on the assembly parts, hydraulic fluid port can be three or two.Realize that key of the present utility model is: must be reasonably with satisfy functional requirement and relief valve, in moving selector valve and necessary oil pocket and oil duct thereof, design is within by the confined space that several connecting bolt limited between gear pump end cap and the gear pump body, and the P mouth of selector valve and T mouth (Fig. 1), must be arranged on the junction plane of valve assembly 12 and gear assembly 11, aim at the hydraulic fluid port 23 and 22 of gear pump respectively.
Adopt after the utility model, saved hand-operated direction valve installing and fixing on complete machine, only need 2-3 oil pipes and 4-6 butt joints, itself and fuel tank and oil cylinder are coupled together, just can form a hydraulic system suitable with the existing system function.It can make hydraulic system simplify oil circuit, reduces hydraulic system because the fault that pipeline leakage causes.
Below in conjunction with the description of drawings specific embodiment:
Fig. 1 reaches the hydraulic system principle figure of being made up of it for assembly parts;
Fig. 2 is the sectional arrangement drawing of assembly parts;
Fig. 3 is the sectional drawing along spool 18 center lines;
Fig. 4 is the projection drawing of gear pump 11 and valve assembly 12 junction planes.
In example shown in Figure 2,11 is a gear pump that has removed the typical structure of end cap, can buy easily on market.12 is the assembly of a relief valve and hand-operated direction valve.Both are tightened to one by four pairs of bolts 19 of its housing of break-through.
Fig. 3 shows that this is a typical sliding valve style 3-position-3-way valve, and has a relief valve 14 of using as safety valve.When it and gear pump are combined into one, tiltedly oil duct 16 pump and valve in conjunction with the plane on just in time aim at hydraulic fluid port 23 among Fig. 4,15 of oil ducts are just in time aimed at hydraulic fluid port 22, because hydraulic fluid port 23 is pressure hydraulic fluid ports of gear pump, hydraulic fluid port 22 is that the inlet port 9 with gear pump communicates, therefore, oil duct 16 here is the P mouth (Fig. 1) of valve, 15 of oil ducts are 1 mouthfuls of valve, and oil pocket 20 communicates with the hydraulic fluid port 10 that is connected oil cylinder, should be the A mouths of valve.Oil duct 13 makes the back of the body chamber 21 of relief valve, and oil duct 17 and oil duct 15 communicate.
Do not communicate if do not wish oil duct 15 inlet ports 9 direct and gear pump, also the outlet of oil duct 15 can be arranged on the right side of assembly parts among Fig. 2, parallel with hydraulic fluid port 10, this hydraulic fluid port is connected with fuel tank after can be used for connecting oil purifier again.At this moment, there are three hydraulic fluid ports the assembly parts outside.
Claims (2)
1, a kind of by hand-operated direction valve and the integrated hydraulic pressure group component of gear pump, it is characterized in that, the hand-operated direction valve (3) that will have relief valve (2), make an end cap of gear pump, with the connecting bolt between the gear pump end cap and the pump housing (19), manual reverse of direction valve assembly (12) and the gear machine (11) that removed end cap are connected into an integral body, the P mouth of hand-operated direction valve and T mouth hand-operated direction valve and gear pump in conjunction with the plane on directly and hydraulic fluid port (23) and (22) on the gear pump communicate, the assembly parts outside has the hydraulic fluid port that is connected with other hydraulic parts.
2, assembly parts according to claim 1 is characterized in that, there are 2 hydraulic fluid ports (9), (10) or 3 hydraulic fluid ports (9), (10), (15) in the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94246245 CN2234520Y (en) | 1994-10-19 | 1994-10-19 | Hydraulic assemply by combining gear pump with hand change-over valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94246245 CN2234520Y (en) | 1994-10-19 | 1994-10-19 | Hydraulic assemply by combining gear pump with hand change-over valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2234520Y true CN2234520Y (en) | 1996-09-04 |
Family
ID=33851787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94246245 Expired - Fee Related CN2234520Y (en) | 1994-10-19 | 1994-10-19 | Hydraulic assemply by combining gear pump with hand change-over valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2234520Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821824A (en) * | 2019-11-22 | 2020-02-21 | 兰州理工大学 | Internal gear type hydraulic motor pump with integrated cartridge valve at outlet |
| CN115653965A (en) * | 2022-12-23 | 2023-01-31 | 索特传动设备有限公司 | Hydraulic valve assembly and system |
-
1994
- 1994-10-19 CN CN 94246245 patent/CN2234520Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821824A (en) * | 2019-11-22 | 2020-02-21 | 兰州理工大学 | Internal gear type hydraulic motor pump with integrated cartridge valve at outlet |
| CN115653965A (en) * | 2022-12-23 | 2023-01-31 | 索特传动设备有限公司 | Hydraulic valve assembly and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |