CN201753720U - Loading device of hydraulic system - Google Patents
Loading device of hydraulic system Download PDFInfo
- Publication number
- CN201753720U CN201753720U CN2010202692381U CN201020269238U CN201753720U CN 201753720 U CN201753720 U CN 201753720U CN 2010202692381 U CN2010202692381 U CN 2010202692381U CN 201020269238 U CN201020269238 U CN 201020269238U CN 201753720 U CN201753720 U CN 201753720U
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- hydraulic system
- loading device
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- 239000000945 filler Substances 0.000 claims description 10
- 239000012530 fluid Substances 0.000 description 14
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000012089 stop solution Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
The utility model provides a loading device of a hydraulic system, which belongs to the technical field of machinery and solves the problem that the existing loading device can only apply loading pressure onto a single hydraulic system. The loading device of a hydraulic system comprises a body, an oil through channel is arranged inside the body, an oil inlet and an oil outlet of the oil through channel are respectively positioned on two sides of the body, a high-pressure loading valve, a low-pressure loading valve and a stop valve are communicated with the oil through channel and further connected onto the body, the high-pressure loading valve is connected in parallel with the low-pressure loading vale via the oil through channel, and the stop valve is positioned at a position, between an inlet end of the high-pressure loading valve and an inlet end of the low-pressure loading valve, of the oil through channel. The loading device of a hydraulic system has the advantages of compact structure, convenient utilization and higher utilization stability and safety.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of deceleration loading device of hydraulic system, especially for the deceleration loading device of high-pressure high flux hydraulic power system.
Background technique
Hydraulic system charge valve commonly used at present mainly contains throttle valve, relief valve and plug-in type charge valve etc.Hydraulic system for low pressure small flow and high-pressure low-flow, load mode commonly used is to adopt throttle valve or relief valve directly to load, because the flow of this type hydraulic system is little, thereby throttle valve or relief valve, hydraulic pipe line etc. all select than being easier to, and system cost is not high.
Generally adopt the plug-in type charge valve to load for the low pressure and mass flow hydraulic system, effectively utilize the big characteristic of cartridge valve flow, because pressure is lower, thereby plug-in type charge valve, hydraulic pipe line etc. all select than being easier to, and system cost is not high.
For the hydraulic system of high-pressure high-flow, it is very high to satisfy high-pressure high-flow required standard charge valve price simultaneously.Usually still adopt the plug-in type charge valve to load.But because the pressure of hydraulic system is very high at this moment, corresponding requirement for plug-in type charge valve and hydraulic pipe line is very strict, thereby causes the rapid rising of oil hydraulic pump cost of testing system.In addition, owing to be the high-pressure high-flow system, the corresponding reduction of the safety coefficient of test system.
Its publication number of Chinese patent CN101400540A discloses a kind of " being used for the device to the hydraulic system on-load pressure ", and this device comprises an operation equipment, operation equipment and active cylinder mechanical connection, and active cylinder links to each other with pressure unit.Above-mentioned device can only carry out on-load pressure to single hydraulic system, that is to say, loads at high pressure and low pressure, and above-mentioned device just can not be realized simultaneously.
Summary of the invention
The purpose of this utility model is the problems referred to above that exist at existing, and a kind of simple in structure, hydraulic system deceleration loading device that stability in use is high is provided.
The purpose of this utility model can realize by following technical proposal: a kind of deceleration loading device of hydraulic system, it is characterized in that, this device comprises a body, has oil canal in the body, the filler opening of oil canal and oil outlet lay respectively at the both sides of body, also be connected with the high pressure charge valve, low pressure charge valve and the stop valve that communicate with above-mentioned oil canal on the described body, high pressure charge valve and low pressure charge valve are connected in parallel by above-mentioned oil canal, the oil canal place of above-mentioned stop valve between high pressure charge valve entrance point and low pressure charge valve entrance point.
The deceleration loading device of this hydraulic system is used for hydraulic system is loaded.Particularly, when carrying out the high pressure loading, stop valve is closed, fluid directly enters oil outlet by high-pressure overflow valve, forms the high pressure loading system.
When carrying out the low pressure loading, stop valve is opened, fluid directly enters oil outlet by low pressure relief valve, forms low pressure and loads.
In the deceleration loading device of above-mentioned hydraulic system, be close to the filler opening place on the described oil canal and be provided with throttle valve.
Control fluid flow and system pressure by the flow area of adjusting throttle valve by throttle valve.
In the deceleration loading device of above-mentioned hydraulic system, described throttle valve is in parallel with the high pressure charge valve by above-mentioned oil canal.Such structure makes fluid divide two-way, and a part directly enters oil outlet through high-pressure overflow valve or low pressure relief valve, and a part enters oil outlet through throttle valve in addition.Thereby by regulating throttle valve control fluid flow.
In the deceleration loading device of above-mentioned hydraulic system, also be connected with the pressure measuring tie-in that communicates with oil canal on the described body.
The pressure measurement pressure gauge is connected on the pressure measuring tie-in, just can be accurately, detect the oil liquid pressure in this device, make things convenient for field observation.
In the deceleration loading device of above-mentioned hydraulic system, described body is provided with the pressure transducer that is connected with oil canal.
Can accurately detect oil liquid pressure in this device by pressure transducer, be equipped with data acquistion system, can realize the remote transmission and the observation of system pressure easily, and its situation of change of detail record.
Compared with prior art, the deceleration loading device of this hydraulic system is owing to all being connected high and low pressure relief valve and stop valve, throttle valve on the body, so its compact structure is easy to use.Simultaneously, because each valve all is connected on the body, be difficult for becoming flexible or coming off, therefore, its stability in use and Security are also than higher.
Description of drawings
Fig. 1 is the sectional structure schematic representation of the deceleration loading device of this hydraulic system.
Fig. 2 is the hydraulic schematic diagram of the deceleration loading device of this hydraulic system.
Among the figure, 1, body; 1a, oil canal; 1a1, filler opening; 1a2, oil outlet; 2, high-pressure overflow valve; 3, low pressure relief valve; 4, stop valve; 5, throttle valve; 6, pressure measuring tie-in; 7, pressure transducer; 8, plug.
Embodiment
As shown in Figure 1, the deceleration loading device of this hydraulic system is the device that is used for the hydraulic system on-load pressure, and it is made up of body 1, high-pressure overflow valve 2, low pressure relief valve 3, stop valve 4 and throttle valve 5 etc.
As depicted in figs. 1 and 2, have oil canal 1a in the body 1, the filler opening 1a1 of oil canal 1a and oil outlet 1a2 lay respectively at the both sides of body 1.High-pressure overflow valve 2, low pressure relief valve 3, stop valve 4 and throttle valve 5 all are connected on the body 1 and they all communicate with oil canal 1a.High pressure charge valve 2 is connected in parallel the oil canal 1a place of stop valve 4 between high pressure charge valve 2 entrance points and low pressure charge valve 3 entrance points with low pressure charge valve 3 by above-mentioned oil canal 1a.
The deceleration loading device of this hydraulic system links to each other with hydraulic system, that is to say that the filler opening 1a1 of the oil canal 1a on the body 1 links to each other with hydraulic system.Under the normality, throttle valve 5, high-pressure overflow valve 2 and low pressure relief valve 3 all are in complete loose state, and stop valve 4 is in closed condition.Throttle valve 5 is a common elements.Select to use high-pressure overflow valve 2 or low pressure relief valve 3 to load according to high-pressure overflow valve and low pressure relief valve range and the needed on-load pressure of hydraulic system separately.Opening and closing by stop valve 4 are switched, and when stop valve 4 was closed, throttle valve 5 was in parallel with high-pressure overflow valve 2, form the high pressure loading system; When stop valve 4 was opened, throttle valve 5 was in parallel with low pressure relief valve 3, formed the low pressure loading system.
When high-pressure system was loaded, fluid flowed into from filler opening 1a1, and part fluid is by throttle valve 5, and part fluid converges this deceleration loading device of outflow by high-pressure overflow valve 2 at oil outlet 1a2 place.At this moment, the acting in conjunction by throttle valve 5 and high-pressure overflow valve 2 is a system loads.Course of action is: primer fluid pressing system under throttle valve 5 and high-pressure overflow valve 2 complete loose states, the No Load Start of realization system; After treating system stability, adjust the tightness of throttle valve 5 and high-pressure overflow valve 2 respectively, up to the required pressure of the system that reaches.After hydraulic work system finishes, earlier throttle valve 5 and high-pressure overflow valve 2 are threaded to complete loose state, stop solution pressing system again.
When low service system was loaded, fluid flowed into from filler opening 1a1, and part fluid is by throttle valve 5, and part fluid converges this deceleration loading device of outflow by stop valve 4 and low pressure relief valve 3 at oil outlet 1a2 place.At this moment, the acting in conjunction by throttle valve 5 and low pressure relief valve 3 is a system loads.Course of action is: open stop valve 4, make low pressure relief valve 3 in parallel with throttle valve 5, screw high-pressure overflow valve 2, make fluid can not pass through high-pressure overflow valve 2.At this moment, throttle valve 5 and low pressure relief valve 3 are in complete loose state, and stop valve is in opening state, primer fluid pressing system, the No Load Start of realization system.After treating system stability, adjust the tightness of throttle valve 5 and low pressure relief valve 3 respectively, up to the required pressure of the system that reaches.After hydraulic work system finishes, earlier throttle valve 5 and low pressure relief valve 3 are threaded to complete loose state, stop solution pressing system again.
In addition, also be connected with pressure measuring tie-in 6 and the pressure transducer 7 that communicates with oil canal 1a on the body 1.By the pressure measurement pressure gauge is connected on the pressure measuring tie-in 6, can realize field observation easily to system pressure.And can realize the remote transmission and the observation of system pressure and its situation of change of detail record easily by pressure transducer 7.
Claims (5)
1. the deceleration loading device of a hydraulic system, it is characterized in that, this device comprises a body (1), has oil canal (1a) in the body (1), the filler opening (1a1) of oil canal (1a) and oil outlet (1a2) lay respectively at the both sides of body (1), also be connected with the high pressure charge valve that communicates with above-mentioned oil canal (1a) on the described body (1), low pressure charge valve and stop valve (4), high pressure charge valve and low pressure charge valve are connected in parallel by above-mentioned oil canal (1a), and the oil canal (1a) of above-mentioned stop valve (4) between high pressure charge valve entrance point and low pressure charge valve entrance point located.
2. the deceleration loading device of hydraulic system according to claim 1 is characterized in that, is close to filler opening (1a1) on the described oil canal (1a) and locates to be provided with throttle valve (5).
3. the deceleration loading device of hydraulic system according to claim 2 is characterized in that, described throttle valve (5) is in parallel with the high pressure charge valve by above-mentioned oil canal (1a).
4. according to the deceleration loading device of claim 1 or 2 or 3 described hydraulic systems, it is characterized in that, also be connected with the pressure measuring tie-in (6) that communicates with oil canal (1a) on the described body (1).
5. according to the deceleration loading device of claim 1 or 2 or 3 described hydraulic systems, it is characterized in that described body (1) is provided with the pressure transducer (7) that is connected with oil canal (1a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202692381U CN201753720U (en) | 2010-07-23 | 2010-07-23 | Loading device of hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202692381U CN201753720U (en) | 2010-07-23 | 2010-07-23 | Loading device of hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201753720U true CN201753720U (en) | 2011-03-02 |
Family
ID=43621452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202692381U Expired - Lifetime CN201753720U (en) | 2010-07-23 | 2010-07-23 | Loading device of hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201753720U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114542549A (en) * | 2022-02-17 | 2022-05-27 | 北京华德液压工业集团有限责任公司 | High-precision pressure regulating loop |
-
2010
- 2010-07-23 CN CN2010202692381U patent/CN201753720U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114542549A (en) * | 2022-02-17 | 2022-05-27 | 北京华德液压工业集团有限责任公司 | High-precision pressure regulating loop |
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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 | ||
| CP03 | Change of name, title or address |
Address after: 317604 Zhejiang Taizhou Yuhuan County barley island Street iron faucet Patentee after: Zhejiang Stronger Hydraulic Co., Ltd. Address before: Taizhou City, Zhejiang province 317604 Yuhuan County Chen Yutie leading Patentee before: Zhejiang Stronger Hydraulic Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110302 |