CN205956110U - Novel cylinder body among hydraulic breaking hammer - Google Patents
Novel cylinder body among hydraulic breaking hammer Download PDFInfo
- Publication number
- CN205956110U CN205956110U CN201620837188.XU CN201620837188U CN205956110U CN 205956110 U CN205956110 U CN 205956110U CN 201620837188 U CN201620837188 U CN 201620837188U CN 205956110 U CN205956110 U CN 205956110U
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- CN
- China
- Prior art keywords
- cylinder body
- piston
- oil
- piston rod
- groove
- 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.)
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Links
- 238000011084 recovery Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 5
- 238000012856 packing Methods 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 14
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 239000010720 hydraulic oil Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Abstract
The utility model relates to a novel cylinder body among hydraulic breaking hammer, pore structure increases by one sealing member slot in order to increase the piston rod packing piece one on the right side in oil return chamber in it, simultaneously, increase the fit clearance of the clearance seal section of hole and piston rod anterior segment and 0.23 0.25mm, scuffing of cylinder bore, the oil leak problem that the quartering hammer appears at work can be solved effectively to the cylinder body in novel, and especially to large -scale hydraulic hammer, the effect is showing more behind this novel well cylinder structure of adoption.
Description
Technical field
This utility model belongs to hydraulic breaking hammer field, is related to cylinder body in hydraulic breaking hammer.
Background technology
As shown in figure 1, cylinder assembly in hydraulic breaking hammer, main include in cylinder body, piston, piston ring, sealing member and change
To valve assembly.During work, piston moves axially in reciprocal fashion in middle cylinder body, and the hydraulic energy transfer of liquid is the impact energy of piston
Hit drill steel, output energy is thus reach the purpose of fractured rock.In middle cylinder body in the market, pore structure is joined from piston head
Closing direction first three road groove from left to right is sealing member groove, and the 4th road groove is oil-recovery tank, and it forms oil back chamber, work with piston rod
All the time oil return is led to, for normal low pressure in work；The cylindrical section endoporus of the right next-door neighbour's oil-recovery tank is the clearance seal section with piston rod cooperation,
Fit clearance is 0.07-0.08mm, the front/back cavity of the oil cylinder being formed with piston rod for endoporus on the right side of next-door neighbour's clearance seal section, work
In work, ante-chamber is always high pressure, the macropore ring installation of low order end.When quartering hammer works, the hydraulic oil in ante-chamber passes through upper
State clearance seal section to leak out, then fuel tank is flowed back to by the oil back chamber that oil-recovery tank is formed with piston rod, so, in first three road groove
What sealing member bore all the time is the effect of low pressure oil.
The sealing property of rubber seal is provided by two parts, and one is sealing member and by the original compression between sealing member
Amount, the decrement that two deformation being affected by oil liquid pressure generation are formed.So, when piston moves in existing middle cylinder body, due to
What the sealing member in first three road groove bore all the time is low pressure oil, and when piston works in the horizontal direction, the weight of piston can only be by
The original compression amount of sealing member is undertaking supporting role, for the piston especially for big specification, because its own is heavier, close
The original compression amount of sealing is difficult to undertake supporting role, easily causes piston eccentric motion in cylinder body, simultaneously because in middle cylinder body
The fit clearance of the clearance seal section of hole and piston rod leading portion only has 0.07-0.08mm, piston face and cylinder inner bore surface pole
Easily contact, cause piston face and inner surface of cylinder block to pull, lead to quartering hammer oil leak, hit powerless phenomenon, also make brokenly simultaneously
Broken hammer product loses function, and then scraps.
Content of the invention
Problem to be solved in the utility model is to provide cylinder body in a kind of novel hydraulic crushing hammer, and it can efficiently solve
Hydraulic breaking hammer scuffing of cylinder bore at work, the problem of oil leak.
Its inner hole structure of middle cylinder body described in the utility model includes three roads from left to right arranging from piston head cooperation direction
Sealing member groove, respectively dust-proof seal ring groove, U-shaped o-ring groove and bumper ring groove, also include oil-recovery tank, oil return
Groove forms oil back chamber with piston rod, leads to oil return all the time, for normal low pressure in work；For solving above-mentioned technical problem, this utility model
It is provided with one piston rod seal component groove on the right side of described oil-recovery tank, in order to increase by one piston rod seal component；Using this reality
With new described middle housing structure, when quartering hammer works, the hydraulic oil in oil cylinder ante-chamber described in background technology passes through gap
Seal section releases, and acts on increased piston rod seal component all the time, especially when piston moves in the horizontal direction, due to
What the sealing member in increased piston rod seal component groove bore all the time is hydraulic oil, and now the weight of piston is not only by being increased
Undertaking supporting role, simultaneously because being acted on by hydraulic oil, increased sealing member is subject to axle to the original compression amount of sealing member
To compression stress and radial compression force, make described sealing member and coordinated by sealing surface even closer, piston is served with very big
Support acts on, and bigger with pressure higher supporting role power, effectively prevents piston face to contact with hole surface in middle cylinder body.
For optimizing technical solutions of the utility model further, by cylinder inner bore in prior art and the cooperation of piston rod leading portion
Fit clearance 0.07-0.08mm of clearance seal section is increased to 0.23-0.25mm, due to increased above-mentioned piston rod seal component,
Front cavity pressure will not be reduced while therefore increase in gap, there is no any impact to broken work, and because gap increases,
When piston horizontal direction works so that piston face is difficult to contact with cylinder inner bore surface, avoid further pulling because of contact
Piston face and middle inner surface of cylinder block.
Using housing structure in this utility model, when piston works in the horizontal direction, effectively prevent piston in middle cylinder
Eccentric motion in body, has prevented the chance that piston face is contacted with cylinder inner bore surface, and then has efficiently solved piston face
With inner surface of cylinder block by pulling led to quartering hammer oil leak, hitting the phenomenon such as powerless, the piston especially for big specification comes
Say, because its own is heavier, become apparent from using its improvement effect of housing structure in this utility model.
Brief description
Fig. 1 is cylinder assembly figure in hydraulic breaking hammer.
Fig. 2 enters partial seal groove enlarged drawing for this utility model middle cylinder structural reform.
Specific embodiment
1,2 pairs of this utility model are described in further detail below in conjunction with the accompanying drawings：
As shown in figure 1, cylinder assembly mainly includes middle cylinder body 1, lives in a kind of hydraulic breaking hammer of this utility model embodiment
Plug 2, piston ring 3, sealing member 4 and reversal valve 5, the inner hole structure of wherein middle cylinder body 1 include from piston head cooperation direction from a left side to
The three seals part groove of right setting, respectively dust-proof seal ring groove 11, U-shaped o-ring groove 12 and bumper ring groove 13,
Also include oil-recovery tank 14, in this utility model, cylinder body 1 is also provided with one piston rod seal component groove 15 on the right side of oil-recovery tank 14.
In the present embodiment, piston 2 shank diameter is 180mm, for reaching optimal seal and support effect, the preferred piston rod packing of the present embodiment
Part groove 15 is bumper ring groove, and its width is 6.3mm, and trench bottom footpath is 195.5mm, and the spacing with oil-recovery tank is 6mm.With
When, the fit clearance of the clearance seal section 10 that middle cylinder body 1 endoporus is coordinated by the present embodiment with piston 2 bar leading portion is from original
0.07-0.08mm is increased to 0.23-0.25mm.
Through practice, this utility model embodiment can efficiently solve scuffing of cylinder bore, the leakage that hydraulic breaking hammer occurs at work
Oily problem, especially for large hydraulic hammer, because itself is heavier, after enforcement, effect becomes apparent from.
Claims (2)
1. cylinder body in a kind of novel hydraulic crushing hammer, described middle cylinder body（1）Inner hole structure is included from piston head cooperation direction from a left side
To the three seals part groove of right setting, respectively dust-proof seal ring groove（11）, U-shaped o-ring groove（12）And bumper ring
Groove（13）, also include oil-recovery tank（14）It is characterised in that：Oil-recovery tank（14）Right side is additionally provided with one piston rod seal component ditch
Groove（15）.
2. middle cylinder body according to claim 1 it is characterised in that：Described middle cylinder body（1）Endoporus and piston（2）Bar leading portion is joined
The clearance seal section closed（10）, its fit clearance is 0.23-0.25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620837188.XU CN205956110U (en) | 2016-08-04 | 2016-08-04 | Novel cylinder body among hydraulic breaking hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620837188.XU CN205956110U (en) | 2016-08-04 | 2016-08-04 | Novel cylinder body among hydraulic breaking hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205956110U true CN205956110U (en) | 2017-02-15 |
Family
ID=57973939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620837188.XU Active CN205956110U (en) | 2016-08-04 | 2016-08-04 | Novel cylinder body among hydraulic breaking hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205956110U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111608986A (en) * | 2020-06-29 | 2020-09-01 | 马鞍山市卡迈特液压机械制造有限公司 | Cylinder body seal structure in hydraulic breaking hammer |
-
2016
- 2016-08-04 CN CN201620837188.XU patent/CN205956110U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111608986A (en) * | 2020-06-29 | 2020-09-01 | 马鞍山市卡迈特液压机械制造有限公司 | Cylinder body seal structure in hydraulic breaking hammer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A New Type of Hydraulic Crushing Hammer Cylinder Block Effective date of registration: 20230329 Granted publication date: 20170215 Pledgee: Dangtu County sub branch of China Post Savings Bank Co.,Ltd. Pledgor: MAANSHAN KAMAITE HYDRAULIC MACHINERY MANUFACTURING Co.,Ltd. Registration number: Y2023980036663 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CP03 | Change of name, title or address |
Address after: 243000 Danyang Industrial Park, Bowang District, Ma'anshan City, Anhui Province Patentee after: Ma'anshan Kamet Hydraulic Machinery Co.,Ltd. Address before: 243000 Bowang Danyang Industrial Park, Ma'anshan City, Anhui Province Patentee before: MAANSHAN KAMAITE HYDRAULIC MACHINERY MANUFACTURING Co.,Ltd. |
|
| CP03 | Change of name, title or address |