CN203533008U - Oil absorption hose of excavator - Google Patents
Oil absorption hose of excavator Download PDFInfo
- Publication number
- CN203533008U CN203533008U CN201320659761.9U CN201320659761U CN203533008U CN 203533008 U CN203533008 U CN 203533008U CN 201320659761 U CN201320659761 U CN 201320659761U CN 203533008 U CN203533008 U CN 203533008U
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- China
- Prior art keywords
- oil suction
- flexible pipe
- excavator
- oil absorption
- suction flexible
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- 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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- Earth Drilling (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model provides an oil absorption hose of an excavator. Rubber cloth (2) covers the surface of a rubber layer (1), and elastic metal wires (3) which are spirally distributed are solidified inside the rubber layer (1). The rubber layer (1) is made of nitrile rubber, and the elastic metal wires (3) are made of steel wires. According to the oil absorption hose, the axial elastic deformation amount of the oil absorption hose can be increased, the impact of vibration of a pump on an oil tank is reduced, turbulent flow of a hydraulic system of the excavator is reduced, the anti-pressure capacity of the pipe wall of the oil absorption hose for bearing high system pressure is improved, eventually the service life of the oil absorption hose is prolonged, and the oil absorption hose has the outstanding advantages of being simple in structure, low in manufacturing cost, and capable of resisting oil and high temperature.
Description
Technical field
The utility model relates to civil machinery field, especially relates to a kind of excavator oil suction flexible pipe that is applicable to excavator hydraulic system inlet line.
Background technique
Excavator is main force's kind of civil machinery, has and excavates and cubic metre of earth shipment two large functions, is mainly used in the industries such as construction project, irrigation and water conservancy, mining.Oil suction flexible pipe is the heavy connection of excavator hydraulic system inlet line, and its usage requirement on excavator is mainly reflected in aspect four: the one, and when design must be considered oil resistant, the temperature tolerance of oil suction flexible pipe; The 2nd, pump and motor are rigidly connected by coupling, and vibration frequency is high, amplitude is large, and oil suction flexible pipe needs axial elasticity distortion large, and vibration reduction and cushioning is good; The 3rd, bear that pressure is high, radial deformation is little, long service life; The 4th, easy for installation.
The material of conventional oil suction flexible pipe of the prior art is mainly folder cloth oil resistant rubber, and its concrete structure is stratiform structure as shown in Figure 1, between two-layer rubber layer 1, clips adhesive plaster 2, and outermost rubber layer 1 surface is also coated with adhesive plaster 2.The oil suction flexible pipe of this kind of structure is applied in 6T level mini-excavator, even if oil suction flexible pipe sectional dimension reaches φ 65 (internal diameter) * 7.5 (wall thickness), its actual pressure that bears is no more than 0.8bar, and working life is general only in 2～3 years.Therefore, from the factors such as pressure, working life of bearing of oil suction flexible pipe, consider, oil suction flexible pipe of the prior art can not meet the needs of different stage excavator hydraulic system inlet line.
Model utility content
The technical problems to be solved in the utility model is: the problem existing for prior art, provides a kind of excavator oil suction flexible pipe that can bear higher system pressure and long service life.
The technical problems to be solved in the utility model realizes by the following technical solutions: a kind of excavator oil suction flexible pipe, and at rubber layer surface coverage adhesive plaster, and the fixed elastic metallic yarn distributing in the shape of a spiral in the inside of described rubber layer.
Preferably, the described spirochetal axial length in elastic metallic yarn place is less than the length of elastic metallic yarn place oil suction flexible pipe.
Preferably, the distance between the described spirochetal end in elastic metallic yarn place and adjoining oil suction hose end is 100mm.
Preferably, described elastic metallic yarn is steel wire.
Preferably, described rubber layer is that nitrile butadiene rubber is made.
Compared with prior art, the beneficial effects of the utility model are: owing to being consolidated with elastic metallic yarn in oil suction flexible pipe rubber layer inside, and elastic metallic yarn distributes in the shape of a spiral, can improve the axial elasticity amount of deformation of oil suction flexible pipe, strengthen the anti-pressure ability that oil suction flexible pipe bears higher system pressure, reduce the impact of the vibration of pump to fuel tank simultaneously, thereby can reduce the turbulent flow of hydraulic system, final working life of improving oil suction flexible pipe, and this oil suction hose construction is simpler, low cost of manufacture.
Accompanying drawing explanation
Fig. 1 is the structural representation of oil suction flexible pipe of the prior art.
Fig. 2 is the structural representation of a kind of excavator oil suction of the utility model flexible pipe.
Figure middle part product token name claims: 1-rubber layer, 2-adhesive plaster, 3-elastic metallic yarn.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with the drawings and specific embodiments, the utility model is elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 2, a kind of excavator oil suction flexible pipe, its main body is rubber layer 1, on rubber layer 1 surface, is wound around and covers adhesive plaster 2, passes through the fixed elastic metallic yarn 3 distributing in the shape of a spiral of sulfuration in the inside of rubber layer 1.Wherein, the described elastic metallic yarn 3 spirochetal axial lengths in place are less than the length of elastic metallic yarn 3 place oil suction flexible pipes, consider the axial width of clip used when oil suction flexible pipe as installed is used, conventionally, the distance between the elastic metallic yarn 3 spirochetal ends in place and adjoining oil suction hose end is set to 100mm.Such structure makes the two ends attachment face dead metal silk 3 of oil suction flexible pipe, therefore the hardness of this section of oil suction flexible pipe is lower than other section of hardness of oil suction flexible pipe that contains elastic metallic yarn 3, thereby facilitate the installation of oil suction flexible pipe to fix, and be conducive to guarantee the sealing effect after oil suction flexible pipe is installed.
Rubber layer 1 for the ease of oil suction flexible pipe is fixed with the sulfuration of elastic metallic yarn 3, the manufacture cost of saving oil suction flexible pipe, and the elastic metallic yarn 3 in oil suction flexible pipe rubber layer 1 adopts steel wire conventionally, and rubber layer wherein 1 adopts nitrile butadiene rubber to make.Because the oil resistance of nitrile butadiene rubber is fabulous, wear resistance is higher, and heat resistance is better, and bonding force is strong, and therefore, oil suction flexible pipe of the present utility model has good oil resistance and temperature tolerance, is conducive to further improve the working life of oil suction flexible pipe.
In sum, oil suction flexible pipe of the present utility model is owing to being consolidated with elastic metallic yarn 3 in oil suction flexible pipe rubber layer 1 inside, and elastic metallic yarn 3 distributes in the shape of a spiral, adopt such structure can improve the axial elasticity amount of deformation of oil suction flexible pipe, reduce the impact of the vibration of pump to fuel tank, thereby reduce the turbulent flow of excavator hydraulic system, the tube wall that strengthens oil suction flexible pipe bears the anti-pressure ability of higher system pressure, therefore, finally improved the working life of oil suction flexible pipe, and, oil suction hose construction of the present utility model is simpler, be conducive to reduce manufacture cost, also there is good oil resistance and temperature tolerance simultaneously.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; it should be pointed out that all any modifications of doing within spirit of the present utility model and principle, be equal to replacement and improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. an excavator oil suction flexible pipe, at rubber layer (1) surface coverage adhesive plaster (2), is characterized in that: the fixed elastic metallic yarn (3) distributing in the shape of a spiral in inside of described rubber layer (1).
2. a kind of excavator oil suction flexible pipe according to claim 1, is characterized in that: the spirochetal axial length in described elastic metallic yarn (3) place is less than the length of elastic metallic yarn (3) place oil suction flexible pipe.
3. according to a kind of excavator oil suction flexible pipe described in claim 1 or 2, it is characterized in that: the distance between the spirochetal end in described elastic metallic yarn (3) place and adjoining oil suction hose end is 100mm.
4. a kind of excavator oil suction flexible pipe according to claim 3, is characterized in that: described elastic metallic yarn (3) is steel wire.
5. a kind of excavator oil suction flexible pipe according to claim 1, is characterized in that: described rubber layer (1) is that nitrile butadiene rubber is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320659761.9U CN203533008U (en) | 2013-10-24 | 2013-10-24 | Oil absorption hose of excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320659761.9U CN203533008U (en) | 2013-10-24 | 2013-10-24 | Oil absorption hose of excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203533008U true CN203533008U (en) | 2014-04-09 |
Family
ID=50419215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320659761.9U Expired - Fee Related CN203533008U (en) | 2013-10-24 | 2013-10-24 | Oil absorption hose of excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203533008U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154236A (en) * | 2014-07-15 | 2014-11-19 | 宁国天运橡塑制品有限公司 | Oil seal for automobile rear axle assembly |
| CN114216603A (en) * | 2022-02-21 | 2022-03-22 | 成都凯天电子股份有限公司 | Pressure sensor |
-
2013
- 2013-10-24 CN CN201320659761.9U patent/CN203533008U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154236A (en) * | 2014-07-15 | 2014-11-19 | 宁国天运橡塑制品有限公司 | Oil seal for automobile rear axle assembly |
| CN114216603A (en) * | 2022-02-21 | 2022-03-22 | 成都凯天电子股份有限公司 | Pressure sensor |
| CN114216603B (en) * | 2022-02-21 | 2022-05-24 | 成都凯天电子股份有限公司 | Pressure sensor |
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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: 20140409 Termination date: 20181024 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |