CN205836996U - Comprise the track takeup of step piston rod - Google Patents
Comprise the track takeup of step piston rod Download PDFInfo
- Publication number
- CN205836996U CN205836996U CN201620766457.8U CN201620766457U CN205836996U CN 205836996 U CN205836996 U CN 205836996U CN 201620766457 U CN201620766457 U CN 201620766457U CN 205836996 U CN205836996 U CN 205836996U
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- CN
- China
- Prior art keywords
- inner chamber
- piston rod
- cylinder block
- cylinder body
- cylinder
- 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
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Abstract
Comprise the track takeup of step piston rod, including hydraulic cylinder component and Buffer Unit；Cylinder body is internal is step inner chamber of cylinder block, inner chamber of cylinder block circular in cross-section, cylinder body front end offers the inner chamber aperture of inner chamber of cylinder block, and inner chamber of cylinder block is divided into the large diameter portion near inner chamber aperture and the path part away from inner chamber aperture, the large diameter portion of inner chamber of cylinder block and path partial concentric；Piston rod is in step-like with what inner chamber of cylinder block matched, and piston rod end is provided with annular seal grooves, is inlaid with piston packing in annular seal grooves, and piston packing mates with inner chamber of cylinder block minor diameter part split-phase；When this utility model piston rod is fitted into inner chamber of cylinder block, assemble smooth and easy, without clamping stagnation, improve production efficiency；The foreign bodies such as spacer ring is protected in the increase of side the most outward at dust ring, the sand grains that such volume is bigger would not touch the lip of dust ring, protects dust ring, extends service life.
Description
Technical field
This utility model relates to track takeup technical field, a kind of step piston rod that comprises
Track takeup.
Background technology
Crawler belt tension device is the requisite parts in chassis of the walking machines such as excavator, uses hydraulic jack+bullet more
The structure of spring buffering, walking machine starting or parking when, by the best operating modes such as ditches time, crawler belt can be rushed
Hitting, the spring of tension device plays the effect of buffering, absorbs the vibratory impulse of complete machine, and maintain crawler belt opens state.Open at present
Using the structure of dust ring+guidance tape+sealing ring in entering the oil cylinder of device, on the oil cylinder that piston type seals, piston rod is all more
Being wheel chair access straight-bar, piston-rod end is equipped with piston type sealing ring, and sealing ring external diameter is identical with dust ring internal diameter, is so living
When stopper rod is fitted into oil cylinder, piston packing passes through the frequent clamping stagnation of dust ring, and assembling difficulty, production efficiency is low；Dust ring without
Protection spacer ring, in the presence of a harsh environment, muddy water sand etc. can contact with dust ring lip, and the steel skeleton ring of dust ring easily corrodes life
Rust, dust ring easily lost efficacy.
Summary of the invention
For solving the problems referred to above, the deficiencies in the prior art, this utility model are overcome to provide a kind of without clamping stagnation, assembling letter
Single, the track takeup comprising step piston rod of good dustproof effect.
For achieving the above object, the track takeup comprising step piston rod that this utility model provides, including liquid
Compressing cylinder assembly and Buffer Unit, described hydraulic cylinder component includes piston rod, protection spacer ring, dust ring, fairlead, oil cylinder
Body, piston packing, fuel feeding valve, described Buffer Unit includes the ring coordinated for the spring buffering negative function power with spring
Shape block and device dish and the nut matched with cylinder body trailing exterior surface that plays the role of positioning；Cylinder body is internal is step
Formula inner chamber of cylinder block, described inner chamber of cylinder block circular in cross-section, cylinder body front end offers the inner chamber aperture of inner chamber of cylinder block, described cylinder
Intracoelomic cavity is divided into the large diameter portion near inner chamber aperture and the path part away from inner chamber aperture, the large-diameter portion of described inner chamber of cylinder block
Divide and path partial concentric；Piston rod is in step-like with what inner chamber of cylinder block matched, and it is close that described piston rod end is provided with annular
Envelope groove, is inlaid with piston packing, described piston packing and inner chamber of cylinder block minor diameter part split-phase in described annular seal grooves
Coupling.
Further, inner chamber aperture internal surface offers annular groove, near cylinder body front end in described annular groove
Side is provided with protection spacer ring, and in described annular groove, opposite side is provided with dust ring, described protection spacer ring and dust ring simultaneously
It is embedded in described annular groove, the cylinder body inwall inside described annular groove is provided with fairlead.
Further, described piston seal loop diameter is less than dust ring internal diameter.
Further, described collar stop is fixedly installed on the outer surface that cylinder body is anterior, spring one end and collar stop
Matching towards the one side of cylinder body afterbody, the described spring other end and the device dish being set in cylinder body trailing exterior surface match
Closing, described device dish afterbody matches with nut, and described spring is device dish afterbody and the spiral shell playing position-limiting action when naturalness
Female no pressure contact.
Further, described cylinder body tail end offers pouring orifice, and described pouring orifice connects the most suitable oiling
Valve.
The beneficial effects of the utility model are: the inner chamber of cylinder block of this utility model cylinder body and piston rod all use step
Formula, piston packing external diameter is less than the dust ring internal diameter in inner chamber aperture, when piston rod is fitted into inner chamber of cylinder block, assembles smooth and easy,
Without clamping stagnation, improve production efficiency；Protection spacer ring, the sand that such volume is bigger is increased on the side the most outward of dust ring
The foreign bodies such as grain would not touch the lip of dust ring, protects dust ring, extends service life.
Accompanying drawing illustrates:
Accompanying drawing 1 is structural representation of the present utility model；
Accompanying drawing 2 is the partial enlargement structural representation at this utility model A；
In accompanying drawing: 1, piston rod, 2, protection spacer ring, 3, dust ring, 4, fairlead, 5, cylinder body, 6, spring, 7, piston close
Seal, 8, device dish, 9, nut, 10, fuel feeding valve.
Detailed description of the invention:
Clearer, below in conjunction with this utility model for the purpose making this utility model implement, technical scheme and advantage
Accompanying drawing, this utility model is further described in more detail.
To in description of the present utility model, it is to be understood that term " end ", " afterbody ", " tail end ", " front ",
Orientation or the position relationship of the instruction such as " afterwards ", " interior ", " outward " they are based on orientation shown in the drawings or position relationship, merely to just
Describe in description this utility model and simplification rather than indicate or imply that the device of indication or element must have specific side
Position, with specific azimuth configuration and operation, therefore it is not intended that restriction to this utility model protection domain.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " sets
Put ", should be interpreted broadly " being connected ", " connection ", connect for example, it may be fixing, it is also possible to be to removably connect, or integratedly
Connect；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Language concrete meaning in this utility model.
In accompanying drawing 1 and accompanying drawing 2, the track takeup comprising step piston rod that this utility model provides, including
Hydraulic cylinder component and Buffer Unit, described hydraulic cylinder component include piston rod 1, protection spacer ring 2, dust ring 3, fairlead 4,
Cylinder body 5, piston packing 7, fuel feeding valve 10, described Buffer Unit includes the spring 6 for buffering negative function power and spring
6 collar stop and the device dish 8 coordinated and the nuts 9 matched with cylinder body 5 trailing exterior surface that play the role of positioning；Oil cylinder
Body 5 is internal is step inner chamber of cylinder block, and described inner chamber of cylinder block circular in cross-section, cylinder body 5 front end offers inner chamber of cylinder block
Inner chamber aperture, inner chamber aperture internal surface offers annular groove, and in described annular groove, the side near cylinder body 5 front end is arranged
Protected spacer ring 2, in described annular groove, opposite side is provided with dust ring 3, and described protection spacer ring 2 and dust ring 3 are inlayed simultaneously
In described annular groove, cylinder body 5 inwall inside described annular groove is provided with fairlead 4.
Described inner chamber of cylinder block is divided into the large diameter portion near inner chamber aperture and the path part away from inner chamber aperture, described cylinder
The large diameter portion of intracoelomic cavity and path partial concentric；Piston rod 1 in step-like with what inner chamber of cylinder block matched, described piston rod 1
End is provided with annular seal grooves, is inlaid with piston packing 7 in described annular seal grooves, described piston packing 7 with
Inner chamber of cylinder block minor diameter part split-phase is mated, and described piston packing 7 diameter is less than dust ring 3 internal diameter.
Described collar stop is fixedly installed on the outer surface of cylinder body 5 front portion, and spring 6 one end and collar stop are towards oil cylinder
The one side of body 5 afterbody matches, and described spring 6 other end matches with the device dish 8 being set in cylinder body 5 trailing exterior surface,
Described device dish 8 afterbody matches with nut 9, and described spring 6 is device dish 8 afterbody and the spiral shell playing position-limiting action when naturalness
Female 9 no pressure contacts.Described cylinder body 5 tail end offers pouring orifice, and described pouring orifice connects the most suitable fuel feeding valve
10。
The inner chamber of cylinder block of this utility model cylinder body 5 and piston rod 1 all use step, and piston packing 7 external diameter ratio is interior
Dust ring 3 internal diameter of lumen pore mouth is little, when piston rod 1 is fitted into inner chamber of cylinder block, assembles smooth and easy, without clamping stagnation, improves production effect
Rate；The foreign bodies such as spacer ring 2 is protected in the increase of side the most outward at dust ring 3, the sand grains that such volume is bigger would not be touched
To the lip of dust ring 3, protect dust ring 3, extend service life.
Claims (5)
1. comprise the track takeup of step piston rod, including hydraulic cylinder component and Buffer Unit, it is characterised in that institute
State hydraulic cylinder component to include piston rod (1), protect spacer ring (2), dust ring (3), fairlead (4), cylinder body (5), piston close
Seal (7), fuel feeding valve (10), described Buffer Unit includes that the spring (6) for buffering negative function power coordinates with spring (6)
Collar stop and device dish (8) and the nut (9) matched with cylinder body (5) trailing exterior surface that plays the role of positioning；Oil cylinder
Body (5) is internal is step inner chamber of cylinder block, and described inner chamber of cylinder block circular in cross-section, cylinder body (5) front end offers in cylinder body
The inner chamber aperture in chamber, described inner chamber of cylinder block is divided into the large diameter portion near inner chamber aperture and the path part away from inner chamber aperture,
The large diameter portion of described inner chamber of cylinder block and path partial concentric；Piston rod (1) is in step-like with what inner chamber of cylinder block matched, described
Piston rod (1) end is provided with annular seal grooves, is inlaid with piston packing (7), described work in described annular seal grooves
Plug sealing ring (7) mates with inner chamber of cylinder block minor diameter part split-phase.
Comprise the track takeup of step piston rod the most as claimed in claim 1, it is characterised in that table in inner chamber aperture
Face offers annular groove, and in described annular groove, the side near cylinder body (5) front end is provided with protection spacer ring (2), described
In annular groove, opposite side is provided with dust ring (3), and described protection spacer ring (2) and dust ring (3) are embedded in described annular simultaneously
In groove.
Comprise the track takeup of step piston rod the most as claimed in claim 2, it is characterised in that described piston seal
Circle (7) diameter is less than dust ring (3) internal diameter.
Comprise the track takeup of step piston rod the most as claimed in claim 1, it is characterised in that described collar stop
It is fixedly installed on the outer surface that cylinder body (5) is anterior, spring (6) one end and the collar stop one side towards cylinder body (5) afterbody
Matching, described spring (6) other end matches with the device dish (8) being set in cylinder body (5) trailing exterior surface, described device
Dish (8) afterbody matches with nut (9).
Comprise the track takeup of step piston rod the most as claimed in claim 1, it is characterised in that described cylinder body (5)
Tail end offers pouring orifice, and described pouring orifice connects the most suitable fuel feeding valve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620766457.8U CN205836996U (en) | 2016-07-21 | 2016-07-21 | Comprise the track takeup of step piston rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620766457.8U CN205836996U (en) | 2016-07-21 | 2016-07-21 | Comprise the track takeup of step piston rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205836996U true CN205836996U (en) | 2016-12-28 |
Family
ID=57625091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620766457.8U Expired - Fee Related CN205836996U (en) | 2016-07-21 | 2016-07-21 | Comprise the track takeup of step piston rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205836996U (en) |
-
2016
- 2016-07-21 CN CN201620766457.8U patent/CN205836996U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161228 Termination date: 20210721 |