CN102619806A - Cylinder of excavator - Google Patents
Cylinder of excavator Download PDFInfo
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- CN102619806A CN102619806A CN2012100672870A CN201210067287A CN102619806A CN 102619806 A CN102619806 A CN 102619806A CN 2012100672870 A CN2012100672870 A CN 2012100672870A CN 201210067287 A CN201210067287 A CN 201210067287A CN 102619806 A CN102619806 A CN 102619806A
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- cylinder body
- cylinder
- excavator
- oil
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Abstract
The invention belongs to the technical field of mechanical equipment, relates to a cylinder, and particularly relates to a cylinder of an excavator, which resolves technical problems that an existing cylinder is poor in tightness and inconvenient in use and operation, telescoping of a telescopic arm of an excavator is not facilitated, and the like. The cylinder of the excavator comprises a cylinder body, a piston rod is arranged in the cylinder body, one end of the piston rod is connected with a piston arranged in the cylinder body, the other end of the piston rod penetrates through a supporting sleeve arranged in the cylinder body and extends out of the cylinder body, the supporting sleeve is connected with the cylinder body, a first oil tube is arranged at a position, close to the piston, on the cylinder body, a second oil tube is arranged at a position, close to the supporting sleeve, on the cylinder body, and both the first oil tube and the second oil tube are communicated with the cylinder body. The cylinder of the excavator is reasonable in design, simple in structure, fine in tightness and convenient in use and operation, and work efficiency of the excavator can be increased effectively.
Description
Technical field
The invention belongs to mechanical equipment technical field, relate to a kind of oil cylinder, especially relate to a kind of excavator oil cylinder.
Background technique
Excavator is to excavate with scraper bowl to be higher or lower than the material that holds machine side, and the haulage vehicle or unload the earth moving machinery to stocking yard of packing into.Along with the development of engineering machinery, used more and more widely as the excavator of one of topmost engineering machinery type in the engineering construction.At present, the power of excavator mainly is to adopt oil cylinder hydraulic to drive, and the hydraulic jack of existing technology mainly is made up of cylinder body, piston, piston rod, guide sleeve and hydraulic oil pipe etc., and guide sleeve is located at an end of piston cavity, establishes seal ring in the guide sleeve.When this oil cylinder uses on excavator, need on telescopic boom, increase hydraulic hose usually or the erection sequence valve comes the control oil channel break-make, this method can have a strong impact on the flexible effect of excavator telescopic boom.
In order to solve the problem that existing technology exists, people have carried out long-term exploration, have proposed solution miscellaneous.The Chinese patent document discloses a kind of oil cylinder [application number: CN201020681191.X]; Piston is installed on the piston rod; Piston rod is sleeved in the cylinder barrel, and piston is divided into rod chamber and rodless cavity with cylinder barrel inside, and piston and piston rod are that the flexible oil duct at center is positioned at described cylinder barrel inside; Flexible oil duct one end is fixed on the cylinder barrel bottom; The flexible oil duct the other end is sleeved in piston and the inner cavity of piston rod, and bottom the said cylinder barrel and flexible oil duct joint has oil duct junction, oil duct junction will stretch oil duct and external communications.
Such scheme has improved existing technology to a certain extent, helps realizing that the order of excavator telescopic boom is flexible.But, this scheme not only complex structure, cost is higher, sealing is poor, and uses operation inconvenience.
Summary of the invention
The objective of the invention is provides a kind of reasonable in design, simple in structure, good airproof performance to the problems referred to above, uses easy to operately, can effectively improve the excavator oil cylinder of excavator working efficiency.
For achieving the above object; The present invention has adopted following technical proposal: this excavator oil cylinder, comprise cylinder body, and in cylinder body, be provided with piston rod; One end of the piston rod piston interior with being located at cylinder body is connected; The other end of piston rod passes and is located at the supporting sleeve in the cylinder body and extends to outside the cylinder body, and described supporting sleeve is connected with cylinder body, on cylinder body, is provided with first oil pipe near position of piston; Position near supporting sleeve on cylinder body is provided with second oil pipe, and described first oil pipe and second oil pipe all are communicated with cylinder body.
In above-mentioned excavator oil cylinder, described cylinder body is connected with first copper sheathing near the end of piston one end, and described piston rod is connected with second copper sheathing away from an end of piston.
Further, in above-mentioned excavator oil cylinder, described first copper sheathing is provided with grease nipple.
In above-mentioned excavator oil cylinder, described cylinder body be provided with supporting first pipe clamp of first oil pipe and with the second supporting pipe clamp of second oil pipe, described first pipe clamp is connected with first oil pipe, described second pipe clamp is connected with second oil pipe.
In above-mentioned excavator oil cylinder, described piston and cylinder body junction are provided with wear-resistant ring, and described supporting sleeve and cylinder body junction are provided with seal ring.
As a kind of technological scheme of comparatively optimizing, in above-mentioned excavator oil cylinder, described cylinder body is columnar structured.
In above-mentioned excavator oil cylinder, described first oil pipe and second oil pipe all are external to fuel tank.
Compared with prior art, the advantage of this excavator oil cylinder is: reasonable in design, simple in structure, good airproof performance, use easy to operately, and can effectively improve the excavator working efficiency.
Description of drawings
Fig. 1 is a plan view provided by the invention.
Fig. 2 is a plan view provided by the invention.
Among the figure, cylinder body 1, piston rod 2, piston 3, supporting sleeve 4, first oil pipe 5, second oil pipe 6, first copper sheathing 7, grease nipple 71, second copper sheathing 8, first pipe clamp 9, second pipe clamp 10, wear-resistant ring 11, seal ring 12.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation.
Shown in Fig. 1-2, this excavator oil cylinder comprises cylinder body 1; In cylinder body 1, be provided with piston rod 2, an end of piston rod 2 is connected with piston 3 in being located at cylinder body 1, and the other end of piston rod 2 passes and is located at the interior supporting sleeve 4 of cylinder body 1 and extends to outside the cylinder body 1; Supporting sleeve 4 is connected with cylinder body 1; Position near piston 3 on cylinder body 1 is provided with first oil pipe 5, on cylinder body 1, is provided with second oil pipe, 6, the first oil pipes 5 near the position of supporting sleeve 4 and second oil pipe 6 all is communicated with cylinder body 1.Cylinder body 1 in the present embodiment is columnar structured, and the structure of the cylinder body 1 here can be selected according to actual needs.
Piston 3 is provided with wear-resistant ring 11 with cylinder body 1 junction, and supporting sleeve 4 is provided with seal ring 12 with cylinder body 1 junction.The wear-resistant ring 11 here can prevent piston 3 and cylinder body 1 because of the back and forth movement friction damage, and seal ring 12 helps cylinder body 1 inner sealing, makes entire cylinder reach good sealing effect.
Specific embodiment described herein only is that the present invention's spirit is illustrated.Person of ordinary skill in the field of the present invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used terms such as cylinder body 1, piston rod 2, piston 3, supporting sleeve 4, first oil pipe 5, second oil pipe 6, first copper sheathing 7, grease nipple 71, second copper sheathing 8, first pipe clamp 9, second pipe clamp 10, wear-resistant ring 11, seal ring 12 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; It all is contrary with spirit of the present invention being construed to any additional restriction to them.
Claims (7)
1. excavator oil cylinder; Comprise cylinder body (1), in cylinder body (1), be provided with piston rod (2), an end of piston rod (2) piston (3) interior with being located at cylinder body (1) is connected; It is characterized in that; The other end of piston rod (2) passes and is located at the supporting sleeve (4) in the cylinder body (1) and extends to outside the cylinder body (1), and described supporting sleeve (4) is connected with cylinder body (1), and the position near piston (3) on cylinder body (1) is provided with first oil pipe (5); The position of going up near supporting sleeve (4) at cylinder body (1) is provided with second oil pipe (6), and described first oil pipe (5) and second oil pipe (6) all are communicated with cylinder body (1).
2. excavator oil cylinder according to claim 1 is characterized in that, described cylinder body (1) is connected with first copper sheathing (7) near the end of piston (3) one ends, and described piston rod (2) is connected with second copper sheathing (8) away from an end of piston (3).
3. excavator oil cylinder according to claim 2 is characterized in that, described first copper sheathing (7) is provided with grease nipple (71).
4. excavator oil cylinder according to claim 1; It is characterized in that; Described cylinder body (1) be provided with supporting first pipe clamp (9) of first oil pipe (5) and with supporting second pipe clamp (10) of second oil pipe (6); Described first pipe clamp (9) is connected with first oil pipe (5), and described second pipe clamp (10) is connected with second oil pipe (6).
5. excavator oil cylinder according to claim 1 is characterized in that, described piston (3) is provided with wear-resistant ring (11) with cylinder body (1) junction, and described supporting sleeve (4) is provided with seal ring (12) with cylinder body (1) junction.
6. excavator oil cylinder according to claim 1 is characterized in that, described cylinder body (1) is columnar structured.
7. excavator oil cylinder according to claim 1 is characterized in that, described first oil pipe (5) and second oil pipe (6) all are external to fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100672870A CN102619806A (en) | 2012-03-14 | 2012-03-14 | Cylinder of excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100672870A CN102619806A (en) | 2012-03-14 | 2012-03-14 | Cylinder of excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102619806A true CN102619806A (en) | 2012-08-01 |
Family
ID=46559941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100672870A Pending CN102619806A (en) | 2012-03-14 | 2012-03-14 | Cylinder of excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102619806A (en) |
-
2012
- 2012-03-14 CN CN2012100672870A patent/CN102619806A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120801 |