CN203655792U - Overvoltage protection structural system of hydraulic oil radiator of engineering machine - Google Patents
Overvoltage protection structural system of hydraulic oil radiator of engineering machine Download PDFInfo
- Publication number
- CN203655792U CN203655792U CN201320816152.XU CN201320816152U CN203655792U CN 203655792 U CN203655792 U CN 203655792U CN 201320816152 U CN201320816152 U CN 201320816152U CN 203655792 U CN203655792 U CN 203655792U
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- oil
- hydraulic oil
- radiator
- overvoltage protection
- hydraulic
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- Expired - Fee Related
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Abstract
The utility model discloses an overvoltage protection structural system of a hydraulic oil radiator of an engineering machine. The hydraulic oil radiator is provided with an oil inlet and a first oil outlet, wherein the oil inlet is connected with an oil inlet rubber tube assembly, and the first oil outlet is connected with one end of a first oil return rubber tube assembly through a transition joint. The overvoltage protection structural system is characterized in that a second oil outlet is further arranged at the position, corresponding to the oil inlet, of the hydraulic oil radiator, the second oil outlet is directly communicated with the oil inlet, the second oil outlet is connected with one end of a second oil return rubber tube assembly through a transition joint, and the other end of the first oil return rubber tube assembly and the other end of the second oil return rubber tube assembly are connected with a hydraulic oil tank through a tee joint. According to the principle of the overvoltage protection structural system, one oil outlet is additionally arranged on the hydraulic oil radiator, the oil outlet is connected with a one-way valve, and the hydraulic oil radiator is under overvoltage protection by means of opening the one-way valve. The overvoltage protection structural system greatly improves the reliability of the operation of the hydraulic oil radiator and lowers the cost of after-sale service and 'three guarantees' for repair, replacement and compensation of faulty products.
Description
Technical field
The utility model relates to a kind of engineering mechanical hydraulic oil radiator overvoltage protection structure system.
Background technique
Hydraulic oil radiator is the important composition parts that ensure the normal work of construction machinery hydraulic system.Hydraulic system is converted into heat due to the energy major part of the consumption such as volumetric loss, mechanical loss, the pressure loss of pipeline and the frictional loss of fluid of hydraulic pressure original paper in the course of the work, and the major part in these heats can cause the rising of Hydraulic System Oil liquid temp.If analysis of hydraulic oil overheat (80 DEG C of >), hydraulic oil can cause performance sharply to decline because of oxidation, and hydraulic oil is shortened working life greatly.So increasing oil radiator on hydraulic system return line forces cooling to it.By the hydraulic oil control system oil temperature of faling apart, make it reasonably working in temperature range.
In prior art, hydraulic oil radiator is taked the structure of a filler opening and an oil outlet conventionally.Because hydraulic system can produce the high pressure of moment at work, there is certain limit value and hydraulic oil radiator is withstand voltage, exceeding its pressure bearing will cause distortion, the explosion etc. of radiator, causes the hydraulic oil leakage of oil of faling apart.
Summary of the invention
It is to have for existing hydraulic oil radiator overvoltage protective system the technical problem that causes the faults such as hydraulic oil radiator distortion, explosion due to instantaneous pressure that the utility model will solve.
In order to solve the problems of the technologies described above, the technical solution of the utility model has been to provide a kind of engineering mechanical hydraulic oil radiator overvoltage protection structure system, hydraulic oil radiator is provided with a filler opening and an oil outlet one, filler opening is connected with oil-feed hose assembly, oil outlet one is connected with one end of oil return hose assembly one by transit joint, it is characterized in that, on hydraulic oil radiator, the position of corresponding filler opening is also provided with an oil outlet two, this oil outlet two is directly communicated with filler opening, oil outlet two is connected with one end of oil return hose assembly two by transit joint, oil return hose assembly one, the other end of oil return hose assembly two is connected with hydraulic oil container by threeway.
Preferably, between described oil return hose assembly two and transit joint, be connected by one-way valve.
Principle of the present utility model is: on hydraulic oil radiator, increase an oil outlet, this oil outlet connects an one-way valve, by the unlatching of one-way valve, hydraulic oil radiator is played to overvoltage protection effect.The utility model has improved the reliability of the work of hydraulic oil radiator greatly, has reduced after sales service and three guarantees cost.
Brief description of the drawings
The schematic diagram of the engineering mechanical hydraulic oil radiator overvoltage protection structure that Fig. 1 provides for the utility model.
Embodiment
For the utility model is become apparent, hereby with preferred embodiment, and coordinate accompanying drawing to be described in detail below.
Embodiment
As shown in Figure 1, the structural representation of a kind of engineering mechanical hydraulic oil radiator overvoltage protection structure system providing for the utility model, hydraulic oil radiator 6 is provided with a filler opening, 2 oil outlets, i.e. oil outlet one and oil outlet two.Filler opening is connected with oil-feed hose assembly 7, oil outlet one is connected with one end of oil return hose assembly 1 by transit joint 5, the position of the corresponding filler opening in the position of oil outlet two on hydraulic oil radiator 6, oil outlet two is directly communicated with filler opening, oil outlet two is connected with one end of oil return hose assembly 23 by transit joint 5, between oil return hose assembly 23 and transit joint 5, is connected by one-way valve 4.The other end of oil return hose assembly 1, oil return hose assembly 23 is connected with hydraulic oil container by threeway 1.
When the transient pulse pressure in hydraulic system is greater than the cracking pressure (unlatching while entering 1.25 times of the loose normal operating pressure of the loose pressure >=oil of oil) of one-way valve 4, one-way valve 4 is opened, hydraulic oil is cooling without hydraulic oil radiator 6 cores, directly gets back to hydraulic oil container through oil return hose assembly 23 through threeway 1 by one-way valve 4.
Claims (2)
1. an engineering mechanical hydraulic oil radiator overvoltage protection structure system, hydraulic oil radiator (6) is provided with a filler opening and an oil outlet one, filler opening is connected with oil-feed hose assembly (7), oil outlet one is connected with one end of oil return hose assembly one (2) by transit joint (5), it is characterized in that, the position of the upper corresponding filler opening of hydraulic oil radiator (6) is also provided with an oil outlet two, this oil outlet two is directly communicated with filler opening, oil outlet two is connected with one end of oil return hose assembly two (3) by transit joint (5), oil return hose assembly one (2), the other end of oil return hose assembly two (3) is connected with hydraulic oil container by threeway (1).
2. engineering mechanical hydraulic oil radiator overvoltage protection structure system as claimed in claim 1, is characterized in that, between described oil return hose assembly two (3) and transit joint (5), is connected by one-way valve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320816152.XU CN203655792U (en) | 2013-12-10 | 2013-12-10 | Overvoltage protection structural system of hydraulic oil radiator of engineering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320816152.XU CN203655792U (en) | 2013-12-10 | 2013-12-10 | Overvoltage protection structural system of hydraulic oil radiator of engineering machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203655792U true CN203655792U (en) | 2014-06-18 |
Family
ID=50922183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320816152.XU Expired - Fee Related CN203655792U (en) | 2013-12-10 | 2013-12-10 | Overvoltage protection structural system of hydraulic oil radiator of engineering machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203655792U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179386A (en) * | 2015-10-13 | 2015-12-23 | 淮南矿业(集团)有限责任公司 | Oil return device and hole drilling and sealing system |
-
2013
- 2013-12-10 CN CN201320816152.XU patent/CN203655792U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179386A (en) * | 2015-10-13 | 2015-12-23 | 淮南矿业(集团)有限责任公司 | Oil return device and hole drilling and sealing system |
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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: 20140618 Termination date: 20201210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |