CN201982666U - Cylinder seal for hydraulic breaking hammer - Google Patents
Cylinder seal for hydraulic breaking hammer Download PDFInfo
- Publication number
- CN201982666U CN201982666U CN2011201130748U CN201120113074U CN201982666U CN 201982666 U CN201982666 U CN 201982666U CN 2011201130748 U CN2011201130748 U CN 2011201130748U CN 201120113074 U CN201120113074 U CN 201120113074U CN 201982666 U CN201982666 U CN 201982666U
- Authority
- CN
- China
- Prior art keywords
- seal
- lip
- sealing
- breaking hammer
- hydraulic breaking
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims abstract description 46
- 229920006311 Urethane elastomer Polymers 0.000 claims description 5
- 239000003921 oil Substances 0.000 abstract description 25
- 230000003139 buffering effect Effects 0.000 abstract description 5
- 239000010720 hydraulic oil Substances 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 229920000728 polyester Polymers 0.000 abstract 2
- 238000012423 maintenance Methods 0.000 abstract 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Images
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
- Actuator (AREA)
Abstract
The utility model relates to a seal device, and particularly provides a cylinder seal for a hydraulic breaking hammer, which comprises a hermetic seal, two step seals and a lip-shaped oil seal which are sequentially installed at the upper part of a cylinder body. The thickness of the lip of an outer seal of the lip-shaped oil seal is larger than that of the lip of an inner seal. The lip-shaped oil seal is produced by polyester rubber. Compared with the original buffering ring, because the polyester rubber lip-shaped oil seal has good elasticity and wear resistance, seal surfaces are tightly clung to each other, the sealing function is better, so the adjacent step seal is prevented from being impacted by the peak value of the hydraulic oil, the sealing life of the whole body is prolonged, the maintenance period of the hydraulic breaking hammer is extended, and the working performance is more stable.
Description
Technical field
The utility model relates to seal arrangement, relates in particular to the cylinder body sealing that a kind of hydraulic breaking hammer is used.
Background technique
Hydraulic breaking hammer is the equipment by hydraulic oil driving work, working principle of its uniqueness and bad working environment have determined the critical role of sealing system in whole quartering hammer of hydraulic breaking hammer, and sealing solution that quartering hammer adopted and employed oil sealing quality have considerable influence to the quality of hydraulic breaking hammer.The nominal operation oil pressure in quartering hammer when work is 16-18MPa, but the oil pressure peak value that produces during work can be higher than its nominal operation oil pressure far away, and the motion frequency of piston reaches 800-1000 time/minute.All these has proposed very high request to its cylinder body sealing, and cylinder body sealing quality directly affects the workmanship and the life-span of quartering hammer.Especially to smash spoilage higher for cylinder body top oil sealing.
At present, the most cylinder body top oil sealing solution of like product domestic or import is: on the top of cylinder body and the mating face of piston, adopt one hermetic seal, this special envelope of twice to cushion wear-resistant ring with teflon from top to bottom.Though this oil sealing solution can solve sealing problem preferably, but in actual the use, because the wear-resistant ring of buffering is near high pressure oil, because of it can not bear piston motion at a high speed and the very fast damage of high-intensity compression shock, after the wear-resistant ring wearing and tearing of buffering, can cause the quick wearing and tearing of adjacent this special envelope.The damage of these two kinds of oil sealings is main causes in the quartering hammer oil sealing fault, and its average abrasion life-span is about 400 hours.
The model utility content
The purpose of this utility model provides the cylinder body sealing that a kind of hydraulic breaking hammer is used, to solve the above-mentioned defective of hydraulic breaking hammer.
To achieve these goals, the utility model adopts following technological scheme:
The cylinder body sealing that a kind of hydraulic breaking hammer is used comprises one hermetic seal, twice this special envelope and one lip type oil sealing of being installed on cylinder body top successively.The outer seal lip thickness of described lip type oil sealing is greater than interior sealing lip thickness.Described lip type oil sealing is that urethane rubber is made.
The beneficial effects of the utility model are: urethane rubber lip type oil sealing has been adopted in first road sealing of next-door neighbour's hydraulic oil in cylinder body, compare with original buffering ring, because urethane rubber lip type oil sealing has favorable elasticity and wear resistance, it is tight that sealing surface is fitted, seal action is better, and then avoided being close to this special envelope and impacted by the peak value of hydraulic oil, prolonged the integral sealing life-span.From practical situation statistics, the sealing replacement cycle can reach about 1000 hours.
Description of drawings
Fig. 1 is a used lip oil sealing section amplification figure of the present utility model;
Fig. 2 is mounting point, a sealed hydraulic quartering hammer of the present utility model cylinder body top partial sectional view;
Fig. 3 is original sealing configuration partial sectional view.
In Fig. 1-Fig. 3,1, lip type oil sealing, 2,3, this special envelope, 4, hermetic seal, 5, cylinder body top, 6, outer seal lip, 7, interior sealing lip, 8, cushion wear-resistant ring.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated:
As depicted in figs. 1 and 2, the cylinder body sealing that a kind of hydraulic breaking hammer is used comprises one hermetic seal 4, twice this special envelope 2,3 and one lip type oil sealing 1 of being installed on cylinder body top 5 successively.The thickness of the outer seal lip 6 of described lip type oil sealing 1 is greater than the thickness of interior sealing lip 7.Described lip type oil sealing 1 is made for urethane rubber.Scheme of the present utility model is compared with original sealing configuration shown in Figure 3, cushions wear-resistant ring 1 with lip type oil sealing and replaces the wear-resistant ring 8 of buffering, and its sealing replacement cycle prolongs more than one times.
Claims (3)
1. cylinder body sealing that hydraulic breaking hammer is used comprises one hermetic seal (4), this special envelope (2,3) of twice of being installed on cylinder body top (5) successively, it is characterized in that: also comprise the one lip type oil sealing (1) that is installed on described this special envelope (2) bottom.
2. the cylinder body sealing that a kind of hydraulic breaking hammer according to claim 1 is used, it is characterized in that: outer seal lip (6) thickness of described lip type oil sealing (1) is greater than the thickness of interior sealing lip (7).
3. the cylinder body sealing that a kind of hydraulic breaking hammer according to claim 1 and 2 is used, it is characterized in that: described lip type oil sealing (1) is a urethane rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201130748U CN201982666U (en) | 2011-04-08 | 2011-04-08 | Cylinder seal for hydraulic breaking hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201130748U CN201982666U (en) | 2011-04-08 | 2011-04-08 | Cylinder seal for hydraulic breaking hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201982666U true CN201982666U (en) | 2011-09-21 |
Family
ID=44610128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201130748U Expired - Lifetime CN201982666U (en) | 2011-04-08 | 2011-04-08 | Cylinder seal for hydraulic breaking hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201982666U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307282A (en) * | 2012-03-07 | 2013-09-18 | 株式会社水山重工业 | An oil leakage prevention apparatus of piston for a breaker |
| CN112728092A (en) * | 2020-12-10 | 2021-04-30 | 上海唯万密封科技股份有限公司 | Large-scale hydraulic breaking hammer sealing system |
-
2011
- 2011-04-08 CN CN2011201130748U patent/CN201982666U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307282A (en) * | 2012-03-07 | 2013-09-18 | 株式会社水山重工业 | An oil leakage prevention apparatus of piston for a breaker |
| CN112728092A (en) * | 2020-12-10 | 2021-04-30 | 上海唯万密封科技股份有限公司 | Large-scale hydraulic breaking hammer sealing system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201982667U (en) | Cylinder body seal for hydraulic breaking hammer | |
| CN201982666U (en) | Cylinder seal for hydraulic breaking hammer | |
| CN201915886U (en) | Automatic regulating sealer for polish rod of oil well | |
| CN202520952U (en) | Long/short-lip unilaterally-sealed Y-shaped rubber moving seal ring | |
| CN204061903U (en) | The rod seal of ultrahigh pressure new type compound | |
| CN202418586U (en) | Lip-shaped sealing ring | |
| CN203214880U (en) | Embedded combined sealing device | |
| CN2497113Y (en) | Lip-shape sealing ring | |
| CN204176025U (en) | A kind of floating ball valve | |
| CN204729260U (en) | A kind of air compression plant be installed on air compressor | |
| CN204201068U (en) | For giving the sealing configuration of wind driven generator principal shaft oil sealing | |
| CN202118254U (en) | Novel hydraulic oil cylinder | |
| CN204152777U (en) | Drilling pump center pull rod leakage proof structure | |
| CN201679705U (en) | Sealing device for intermediate rod of plunger pump | |
| CN201992126U (en) | Electric control reversing valve | |
| CN102261492A (en) | Electric control reversing valve | |
| CN201434076Y (en) | Rubber-lined elastic packing box | |
| CN102367874A (en) | Combined seal ring for MBA shaft | |
| CN201891685U (en) | 420MPa extra-high pressure energy accumulator with plane hard seals | |
| CN201627925U (en) | Y-shaped thermoplastic polyurethane hydraulic seal ring | |
| CN104832494A (en) | Piston ring sealing structure of circular double-acting cylinder | |
| CN203453005U (en) | Hydrogen gas compressor seal fitting | |
| CN204805610U (en) | Removable self -tightening high temperature valve seat seal structure of track ball valve | |
| CN205298558U (en) | A wear -resisting rotary seal of self -lubricating for water fatlute pulp grinder | |
| CN202220850U (en) | Multilayer hydraulic cylinder mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121009 Address after: 264006 the Qinhuai River Road, Yantai economic and Technological Development Zone, Shandong 189, China Patentee after: Yantai Eddie Precision Machinery Co., Ltd. Address before: 264006 No. 189, the Qinhuai River Road, Yantai economic and Technological Development Zone, Shandong Patentee before: Yantai Eddie Precision Machinery Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110921 |
|
| CX01 | Expiry of patent term |