CN207647895U - A kind of excavator hydraulic cylinder - Google Patents
A kind of excavator hydraulic cylinder Download PDFInfo
- Publication number
- CN207647895U CN207647895U CN201721880605.XU CN201721880605U CN207647895U CN 207647895 U CN207647895 U CN 207647895U CN 201721880605 U CN201721880605 U CN 201721880605U CN 207647895 U CN207647895 U CN 207647895U
- Authority
- CN
- China
- Prior art keywords
- oil inlet
- cylinder barrel
- piston
- connecting tube
- inlet pipe
- 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
Links
- 239000010865 sewage Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 2
- 230000002706 hydrostatic effect Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 29
- 239000012535 impurity Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000010727 cylinder oil Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Actuator (AREA)
Abstract
The utility model discloses a kind of excavator hydraulic cylinders, including cylinder barrel, the right end of the cylinder barrel, which is bolted, is equipped with guide sleeve, and the internal slide of cylinder barrel is connected with piston, the piston side is fixedly connected with the piston rod through guide sleeve by fastening nut, the inside left bottom end of the cylinder barrel is inlaid with hydrostatic sensor, and both sides are respectively welded oil inlet pipe and flowline at the top of cylinder barrel, the oil inlet pipe and flowline are fixedly connected with connecting tube by pipeline, and the intermediate position of connecting tube is equipped with baffle, the connection pipe surface both sides are equipped with oil inlet and oil outlet, and the inside of connecting tube is equipped with filter screen close to one end of oil inlet pipe, the inside of the oil inlet pipe is equipped with flow valve.The apparatus structure designs advantages of simple, easy to operate, and into fuel-displaced convenient and efficient, convenient for adjusting the flow velocity of oil inlet, safety and stability is vdiverse in function, applied widely, is conducive to popularize.
Description
Technical field
The utility model belongs to technical field of hydraulic oil cylinder, and in particular to a kind of excavator hydraulic cylinder.
Background technology
With the gradual perfection of China's road construction, large-scale pavement engineering gradually decreases, and the demand of large scale equipment also tends to
In saturation.In recent years the market demand of mini-excavator but sustainable growth.The function of mini-excavator is multi-purpose, and has both transport, energy
Consumption, flexibility, adaptability advantage, and price is low, light-weight, easy maintenance, therefore in water power, traffic, municipal administration, gardens, farmland
The small-scale construction of transformation, petroleum pipeline etc. and production field are widely used.Compared to large scale equipment, the demand of mini-excavator
Bigger is suitable for company and personal purchase.And it is all to utilize a pipeline that traditional excavator hydraulic cylinder oil inlet is fuel-displaced, in work
Make that efficiency is low, and hydraulic cylinder cannot be controlled into oil flow rate, the speed for resulting in stretching for hydraulic cylinder not
It can adjust, traditional hydraulic cylinder cannot increasingly meet the needs of people, be unfavorable for widely popularizing.
Utility model content
The purpose of this utility model is to provide a kind of excavator hydraulic cylinders, and structure design advantages of simple is easy to operate,
Into fuel-displaced convenient and efficient, convenient for adjusting the flow velocity of oil inlet, safety and stability is vdiverse in function, applied widely, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the utility model provides the following technical solutions：A kind of excavator hydraulic cylinder, including cylinder
Cylinder, the right end of the cylinder barrel, which is bolted, is equipped with guide sleeve, and the internal slide of cylinder barrel is connected with piston, the piston
Side is fixedly connected with the piston rod through guide sleeve by fastening nut, and the inside left bottom end of the cylinder barrel is inlaid with hydraulic pressure
Sensor, and both sides are respectively welded oil inlet pipe and flowline at the top of cylinder barrel, the oil inlet pipe and flowline are solid by pipeline
Surely it is connected with connecting tube, and the intermediate position of connecting tube is equipped with baffle, the connection pipe surface both sides are equipped with oil inlet and go out
Hydraulic fluid port, and the inside of connecting tube is equipped with filter screen close to one end of oil inlet pipe, the inside of the oil inlet pipe is equipped with flow valve.
Preferably, the left end of the cylinder barrel and the right end of piston rod are welded with mounting ring, and piston rod and piston and lead
It is pasted with O-ring seal to set junction.
Preferably, the outside of the piston is at least provided with two groups of y-type seal rings, and piston is equipped with fastening nut junction
Groove.
Preferably, the outer end integral type of the guide sleeve is equipped with cylinder cap, and the outside of cylinder cap is pasted with piston rod junction
There is dustband.
Preferably, the bottom of the connecting tube is located at the right side of filter screen and is equipped with sewage draining exit, and the row of being equipped in sewage draining exit
Dirty valve.
Compared with prior art, the utility model has the beneficial effects that：
1, the connecting tube being connect by pipeline by oil inlet pipe and flowline can in order to the hydraulic cylinder oil inlet and go out
Oil, while can be in order to being filtered out to the impurity in oil using filter screen cooperation blowdown valve；
2, coordinate hydrostatic sensor that can be convenient for adjusting the flow of oil inlet by flow valve, to realize the management and control hydraulic oil
The flexible speed of cylinder.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the sectional view of the utility model；
Fig. 3 is the sectional view of the utility model connecting tube.
In figure：1 cylinder barrel, 2 guide sleeves, 3 piston rods, 4 fastening nuts, 5 pistons, 6 mounting rings, 7 hydrostatic sensors, 8 oil inlets
Pipe, 9 flowlines, 10 pipelines, 11 connecting tubes, 12 baffles, 13 oil inlets, 14 oil outlets, 15 filter screens, 16 blowdown valves, 17 flows
Valve.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
The utility model provides a kind of excavator hydraulic cylinder as shown in Figs. 1-3, including cylinder barrel 1, the cylinder barrel 1
Right end, which is bolted, is equipped with guide sleeve 2, and the internal slide of cylinder barrel 1 is connected with piston 5, and 5 side of the piston passes through
Fastening nut 4 is fixedly connected with the piston rod 3 through guide sleeve 2, and the inside left bottom end of the cylinder barrel 1 is inlaid with hydraulic sensing
Device 7, and 1 top both sides of cylinder barrel are respectively welded oil inlet pipe 8 and flowline 9, the oil inlet pipe 8 and flowline 9 pass through pipeline
10 are fixedly connected with connecting tube 11, and the intermediate position of connecting tube 11 is equipped with baffle 12, and 11 surface both sides of the connecting tube are all provided with
There are oil inlet 13 and oil outlet 14, and the inside of connecting tube 11 is equipped with filter screen 15, the oil inlet close to one end of oil inlet pipe 8
The inside of pipe 8 is equipped with flow valve 17.
Specifically, the left end of the cylinder barrel 1 and the right end of piston rod 3 are welded with mounting ring 6, and piston rod 3 and piston 5
It is pasted with O-ring seal with 2 junction of guide sleeve.It can be mounted on small-sized excavation in order to the hydraulic cylinder by mounting ring 6
On machine, while O-ring seal can improve the leakproofness that piston rod 3 is connect with piston 5 and guide sleeve 2.
Specifically, the outside of the piston 5 is at least provided with two groups of y-type seal rings, and piston 5 and 4 junction of fastening nut
Equipped with groove.The sealing effect that piston 5 and 1 inner wall of cylinder barrel can be improved by y-type seal ring, prevents leakage, while groove can
In order to the installation of fastening nut 4.
Specifically, the outer end integral type of the guide sleeve 2 is equipped with cylinder cap, and the outside of cylinder cap and 3 junction of piston rod are viscous
Post dustband.On the one hand on the other hand cylinder cap by being pasted with dustband can improve in order to the installation of guide sleeve 2
The dust-proof effect of the hydraulic cylinder.
Specifically, the right side that the bottom of the connecting tube 11 is located at filter screen 15 is equipped with sewage draining exit, and installation in sewage draining exit
There is blowdown valve 16.Sewage draining exit by being equipped with blowdown valve 16 can carry out clear in order to the impurity filtered out to filter screen in oil 15
Reason, improves the service life of the hydraulic cylinder.
Operation principle：In use, by the oiling in connecting tube 11 of oil inlet 13, oil can first pass through filter screen 15 filter out it is miscellaneous
Entering in cylinder barrel 1 from oil inlet pipe 8 after matter pushes piston 5 to move, to make piston rod 3 stretch out 1 one end of cylinder barrel, when piston 5 moves
To cylinder barrel 1 one end when oil can flow to connecting tube 11 from flowline 8 and flowed out from oil outlet 14, and pass through 17 fluid,matching of flow valve
Pressure sensor 7 can be in order to adjust the flow of oil inlet, to realize the flexible speed of the management and control hydraulic cylinder, and blowdown valve 16 can be with
It is cleared up convenient for filtering out the impurity in oil to filter screen 15, which designs advantages of simple, easy to operate, into fuel-displaced side
Just quick, convenient for adjusting the flow velocity of oil inlet, safety and stability is vdiverse in function, applied widely, is conducive to popularize.
Finally it should be noted that：The above descriptions are merely preferred embodiments of the present invention, is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it still can be with technical scheme described in the above embodiments is modified, or to which part technical characteristic
Equivalent replacement is carried out, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (5)
1. a kind of excavator hydraulic cylinder, including cylinder barrel（1）, it is characterised in that：The cylinder barrel（1）Right end be bolted
Guide sleeve is installed（2）, and cylinder barrel（1）Internal slide be connected with piston（5）, the piston（5）Side passes through fastening nut
（4）It is fixedly connected with and runs through guide sleeve（2）Piston rod（3）, the cylinder barrel（1）Inside left bottom end be inlaid with hydraulic sensing
Device（7）, and cylinder barrel（1）Top both sides are respectively welded oil inlet pipe（8）And flowline（9）, the oil inlet pipe（8）And flowline
（9）Pass through pipeline（10）It is fixedly connected with connecting tube（11）, and connecting tube（11）Intermediate position be equipped with baffle（12）, described
Connecting tube（11）Surface both sides are equipped with oil inlet（13）And oil outlet（14）, and connecting tube（11）Inside close to oil inlet pipe
（8）One end filter screen is installed（15）, the oil inlet pipe（8）Inside flow valve is installed（17）.
2. a kind of excavator hydraulic cylinder according to claim 1, it is characterised in that：The cylinder barrel（1）Left end and work
Stopper rod（3）Right end be welded with mounting ring（6）, and piston rod（3）With piston（5）And guide sleeve（2）Junction is pasted with O
Type sealing ring.
3. a kind of excavator hydraulic cylinder according to claim 1, it is characterised in that：The piston（5）Outside at least
Equipped with two groups of y-type seal rings, and piston（5）With fastening nut（4）Junction is equipped with groove.
4. a kind of excavator hydraulic cylinder according to claim 1, it is characterised in that：The guide sleeve（2）Outer end one
Body formula is equipped with cylinder cap, and the outside of cylinder cap and piston rod（3）Junction is pasted with dustband.
5. a kind of excavator hydraulic cylinder according to claim 1, it is characterised in that：The connecting tube（11）Bottom position
In filter screen（15）Right side be equipped with sewage draining exit, and blowdown valve is installed in sewage draining exit（16）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721880605.XU CN207647895U (en) | 2017-12-28 | 2017-12-28 | A kind of excavator hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721880605.XU CN207647895U (en) | 2017-12-28 | 2017-12-28 | A kind of excavator hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207647895U true CN207647895U (en) | 2018-07-24 |
Family
ID=62876469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721880605.XU Expired - Fee Related CN207647895U (en) | 2017-12-28 | 2017-12-28 | A kind of excavator hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207647895U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108581622A (en) * | 2018-07-28 | 2018-09-28 | 重庆宏钢数控机床有限公司 | Pneumatic type buffers protective cover in lathe |
-
2017
- 2017-12-28 CN CN201721880605.XU patent/CN207647895U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108581622A (en) * | 2018-07-28 | 2018-09-28 | 重庆宏钢数控机床有限公司 | Pneumatic type buffers protective cover in lathe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180724 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |