CN201565546U - Electro-hydraulic hammer lower plug sealing and positioning structure - Google Patents
Electro-hydraulic hammer lower plug sealing and positioning structure Download PDFInfo
- Publication number
- CN201565546U CN201565546U CN2009203182646U CN200920318264U CN201565546U CN 201565546 U CN201565546 U CN 201565546U CN 2009203182646 U CN2009203182646 U CN 2009203182646U CN 200920318264 U CN200920318264 U CN 200920318264U CN 201565546 U CN201565546 U CN 201565546U
- Authority
- CN
- China
- Prior art keywords
- hammer
- shutoff sealing
- electric liquid
- piston head
- location structure
- 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
Images
Landscapes
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
The utility model discloses an electro-hydraulic hammer lower plug sealing and positioning structure which comprises a hammer rod (1); the upper part of the hammer rod (1) is provided with a piston head (2); the lower part of the piston head (2) is provided with a cylinder connecting beam (3); a lower plug seal (4) is arranged between the cylinder connecting beam (3) and the hammer rod (1); the lower end of the cylinder connecting beam (3) is connected with a lower seal flange (5); the lower seal flange (5) is provided with a front edge (6); and the lower end of the cylinder connecting beam (3) is provided with a front edge buckle which is matched with the front edge (6). The electro-hydraulic hammer lower plug sealing and positioning structure shortens the connection distance between the lower seal flange and the cylinder connecting beam and the length of a connecting bolt, increases the screwing length, so that the connection rigidity is increased and the stability is greatly improved; the upper part of the lower seal flange is provided with the front edge, and the front edge is buckled on the lower base of the cylinder connecting beam when in installation; and consequently, the lower seal flange plays a guiding role, so that the guiding length of a whole lower seal component is greatly increased.
Description
Technical field
The utility model relates to shutoff sealing location structure under a kind of electric liquid hammer, belongs to electric liquid hammer component technology field.
Background technology
The electricity liquid hammer is a kind of novel forging equipment of energy-saving and environmental protection, and electric liquid hammer is fast because of its response, the high quilt of reliability is known as both at home and abroad is the most advanced at present technology, is subjected to the attention of many countries and is developed.Shutoff seals location structure as shown in Figure 3 under the existing electric liquid hammer, and the piston rod packing position when tup falls has two, and one is the sealing of hammer stem piston head, works to isolate oil, gas; Another is shutoff sealing down, and major function is to stop hydraulic oil to leak outside.But following problem appears in regular meeting in actual use; a is owing to eccentric the forging can often occur when hitting; make hammer stem be case of bending along the forging hammer central axis; like this in the direction parallel with two hammer carriers; following plugging hole and master cylinder endoporus bottom all are subjected to the extruding of cross force, long-term back and forth operation, easily in the following shutoff of master cylinder bottom, connect stifled and distortion appears in piston crown; can occur shearing damage at long axis direction in hammer stem high-speed motion lower seal, cause the bad seals effect to descend.B is because hammer stem speed of service in hitting motion is fast, and blow speed is up to 6 ~ 9m/s, and the springback process medium velocity is faster having hit; The temperature rise that local friction causes when adding the compression of master cylinder air chamber makes the environment temperature of sealing part works higher (＞55 ℃), and causing having butyronitrile rubber and the polyamine fat elastomeric material selected for use now can not satisfied temperature requirement.C is because eccentric forging generation often, make the contacted parts of entire domain hammer stem all be subjected to radial shear power, and existing structure is at the lower seal ring flange and even between the cylinder beam spherical anti-breaking bar leakage of oil device is installed, and be inter-connected via a bolt joint between ring flange and the company's cylinder beam, this syndeton can only play the axial location effect, can not well satisfy the sealing positioning requirements.
The utility model content
The technical problems to be solved in the utility model is: provide that a kind of simple in structure, sealing, positioning performance are good, shutoff sealing location structure under the electric liquid hammer that can increase shutoff seal durability under the electric liquid hammer, can overcome the deficiencies in the prior art.
The technical solution of the utility model: it comprises hammer stem, top at hammer stem is provided with piston head, be provided with even cylinder beam at underside of the piston head, even be provided with shutoff sealing down between cylinder beam and the hammer stem, be connected with the lower seal ring flange in the lower end that connects the cylinder beam, on the lower seal ring flange, be provided with seam, be provided with the seam that cooperates with seam in company cylinder beam lower end and buckle.
The length of hammer stem upper piston head is 1.4～2 times of hammer stem diameter.
On piston head, be provided with helical pitch ring and combined seal ring.
The length of following shutoff sealing is 1.4～3 times of hammer stem diameter.
Be provided with helical pitch ring and combined seal ring in the shutoff sealing down.
Be provided with O type circle, twice Yx circle and the wear-resisting helical pitch ring of twice one in the shutoff sealing down.
Used seal is the seal that fluorubber is made.
Be provided with connecting plate in company cylinder beam bottom, even be provided with locating ring between cylinder beam and the connecting plate.
Compared with the prior art, sealing of the present utility model is finished by following measure jointly with the location:
1) according to use experience, cancellation is the spherical anti-breaking bar leakage of oil device between the company's of being installed in cylinder beam and the lower seal ring flange originally, can shorten lower seal ring flange and the distance that is connected that connects the cylinder beam like this, shorten the length of connecting bolt, its screwing length extends, make its coupling stiffness increase, stability is greatly improved; Have seam on lower seal ring flange top, seam is buckled in and connects on the cylinder beam lower bottom base during installation, the lower seal ring flange has also played guide effect like this, the guiding length of whole lower sealing assembly is prolonged greatly, also strengthened the anti-ability that swings of lower sealing assembly and the fastening effect of lower sealing assembly simultaneously.
2) length of increase piston head, with the length adjustment of hammer stem upper piston head 1.4～2 times of hammer stem diameter, and wear-resisting helical pitch ring, combined seal ring on the limit, two ends, have been increased, its stability is strengthened, when eccentric the forging occurring, the wear-resisting helical pitch ring of twice promptly plays the guide-localization effect up and down, guarantee glue sealing ring reliable movement, has alleviated the piston head metal partly to the extruding of cylinder liner with pull.
3) the down stifled axial length of lengthening, with the length adjustment of shutoff sealing down for being 1.4～3 times of hammer stem diameter, and with the endoporus sealing by one Yx circle and two road O type circles change O type circle into, twice Yx encloses and the wear-resisting helical pitch ring of twice.The stability of hammer stem is strengthened, and when eccentric the forging occurring, wear-resisting helical pitch ring promptly plays the guide-localization effect, guarantees glue sealing ring reliable movement,
4) seal selects for use fluorubber to replace butyronitrile rubber and polyamine fat rubber, fluorubber it can be under 150 ℃ of temperature operate as normal, even electric liquid hammer is worked under abnormal high temperature (greater than 60 ℃), its performance is also much better than aforementioned two kinds of materials, can improve seal sealing life from material like this, increase the result of use of complete machine.
5) even being provided with a locating ring between cylinder beam bottom and the connecting plate, can eliminate the horizontal play of unit head like this, the concentricity of master cylinder system, following shutoff and tup guide rail is guaranteed, also improve the service life that connects cylinder beam foundation bolt simultaneously.
Figure of description
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is for connecting the syndeton schematic diagram of cylinder beam and lower seal ring flange;
Fig. 3 is shutoff sealing location structure schematic diagram under the existing electric liquid hammer.
The specific embodiment
Embodiment: as depicted in figs. 1 and 2, be provided with piston head 2 on the top of hammer stem 1, the length of piston head 2 is 1.4～2 times of hammer stem diameter, is provided with helical pitch ring and combined seal ring on piston head 2, and the helical pitch ring is positioned at the two ends of piston head.Be provided with even cylinder beam 3 in piston head 2 bottoms, even be provided with shutoff sealing 4 down between cylinder beam 3 and the hammer stem 1, the length of following shutoff sealing 4 is 1.4～3 times of hammer stem diameter, seals in following shutoff and is being provided with O type circle, twice Yx circle and the wear-resisting helical pitch ring of twice on 4 one; The seal of used black box for making by fluorubber.Be connected with lower seal ring flange 5 in the lower end of company's cylinder beam 3 by bolt simultaneously, on lower seal ring flange 5, be provided with seam 6, be provided with the seam that cooperates with seam 6 in company cylinder beam 3 lower ends and buckle.Also be provided with connecting plate 7 in company cylinder beam 3 bottoms, even be provided with locating ring 8 between cylinder beam 3 and the connecting plate 7.
Claims (8)
1. shutoff sealing location structure under the electric liquid hammer, it comprises hammer stem (1), be provided with piston head (2) on the top of hammer stem (1), be provided with even cylinder beam (3) in piston head (2) bottom, even be provided with shutoff sealing (4) down between cylinder beam (3) and the hammer stem (1), it is characterized in that: the lower end at company's cylinder beam (3) is connected with lower seal ring flange (5), is provided with seam (6) on lower seal ring flange (5), is provided with the seam that cooperates with seam (6) in company cylinder beam (3) lower end and buckles.
2. shutoff sealing location structure under the electric liquid hammer according to claim 1, it is characterized in that: the length of hammer stem (1) upper piston head (2) is 1.4～2 times of hammer stem diameter.
3. shutoff sealing location structure is characterized in that: be provided with helical pitch ring and combined seal ring on piston head (2) under the electric liquid hammer according to claim 1 and 2.
4. shutoff sealing location structure under the electric liquid hammer according to claim 1, it is characterized in that: the length of following shutoff sealing (4) is 1.4～3 times of hammer stem diameter.
5. according to shutoff sealing location structure under claim 1 or the 4 described electric liquid hammers, it is characterized in that: be provided with helical pitch ring and combined seal ring in the shutoff sealing (4) down.
6. shutoff sealing location structure under the electric liquid hammer according to claim 5 is characterized in that: be provided with O type circle, twice Yx circle and the wear-resisting helical pitch ring of twice one in the shutoff sealing (4) down.
7. shutoff sealing location structure under the electric liquid hammer according to claim 1, it is characterized in that: used seal is the seal that fluorubber is made.
8. shutoff sealing location structure under the electric liquid hammer according to claim 1 is characterized in that: be provided with connecting plate (7) in company's cylinder beam (3) bottom, even be provided with locating ring (8) between cylinder beam (3) and the connecting plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203182646U CN201565546U (en) | 2009-12-23 | 2009-12-23 | Electro-hydraulic hammer lower plug sealing and positioning structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203182646U CN201565546U (en) | 2009-12-23 | 2009-12-23 | Electro-hydraulic hammer lower plug sealing and positioning structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201565546U true CN201565546U (en) | 2010-09-01 |
Family
ID=42657828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203182646U Expired - Fee Related CN201565546U (en) | 2009-12-23 | 2009-12-23 | Electro-hydraulic hammer lower plug sealing and positioning structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201565546U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493972A (en) * | 2011-12-07 | 2012-06-13 | 济南重工股份有限公司 | Structure for preventing sealing sleeves of hammer rod of high-pressure oil cylinder from accidentally falling |
-
2009
- 2009-12-23 CN CN2009203182646U patent/CN201565546U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493972A (en) * | 2011-12-07 | 2012-06-13 | 济南重工股份有限公司 | Structure for preventing sealing sleeves of hammer rod of high-pressure oil cylinder from accidentally falling |
| CN102493972B (en) * | 2011-12-07 | 2015-03-11 | 济南重工股份有限公司 | Structure for preventing sealing sleeves of hammer rod of high-pressure oil cylinder from accidentally falling |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104329475A (en) | Three-eccentric and bidirectional metal sealing butterfly valve | |
| CN102734486A (en) | Valve assembly sealing device of low temperature ball valve | |
| CN201565546U (en) | Electro-hydraulic hammer lower plug sealing and positioning structure | |
| CN201787120U (en) | High temperature ball valve packing seal structure | |
| CN103470790B (en) | Three eccentric metal seal butterfly valve | |
| CN201507652U (en) | Floating seal structure of thrust shaft lever | |
| CN202790563U (en) | High-temperature high-pressure forged steel stop valve | |
| CN203686209U (en) | High-pressure balance type forged switching ball valve with self sealing of fillers | |
| CN201057278Y (en) | Single seat regulating valve | |
| CN207098857U (en) | A kind of pitch motor structure of anti-corrosion vibrationproof | |
| CN202883550U (en) | Improved hydraulic cylinder locking mechanism | |
| CN201705960U (en) | Material angle valve with valve stem and valve core double-guide structures | |
| CN205857181U (en) | A kind of pile chuck assembly | |
| CN201474921U (en) | Packing seal structure of compressor | |
| CN204961891U (en) | Zero friction ball valve sealed firmly | |
| CN202946757U (en) | Filling structure | |
| CN101865322B (en) | Material angle valve with valve stem and valve core dual-guiding structure | |
| CN202451865U (en) | High-pressure energy-saving general type parallel double disc gate valve | |
| CN203454718U (en) | Kiln head sealing structure for rotary kiln | |
| CN201705955U (en) | Butterfly valve with transmission shaft anti-block external-positioning guiding structure | |
| CN202327196U (en) | Hard seal ball valve | |
| CN210566411U (en) | Welding ball valve for heat pipe network | |
| CN202612659U (en) | Ball pin dustproof cover, ball pin assembly and automobile | |
| CN216305961U (en) | Pressurizing rubber water stop ring | |
| CN103697015B (en) | A kind of lightning protection, anti-shearing hydraulic cylinder device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20131223 |