CN204186864U - A kind of hydraulic bjuffer - Google Patents
A kind of hydraulic bjuffer Download PDFInfo
- Publication number
- CN204186864U CN204186864U CN201420590168.8U CN201420590168U CN204186864U CN 204186864 U CN204186864 U CN 204186864U CN 201420590168 U CN201420590168 U CN 201420590168U CN 204186864 U CN204186864 U CN 204186864U
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- CN
- China
- Prior art keywords
- round platform
- seal ring
- cylinder body
- die cavity
- impact head
- 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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- Presses And Accessory Devices Thereof (AREA)
Abstract
The utility model discloses a kind of hydraulic bjuffer, comprise cylinder body, piston rod and impact head, described cylinder body is cylindrical, described cylinder body comprises seal ring, the sidewall of described hydraulic rod body extends to the direction of impact head and forms die cavity, described seal ring is embedded in die cavity, the height of described seal ring is greater than the height of die cavity, the shaft core position of described seal ring is provided with through hole, described piston rod one end is inserted through through hole and extends in cylinder body, it is outer and be fixedly connected with impact head that the described piston rod the other end is located at cylinder body, described seal ring comprises the first round platform and the second round platform, the radius of described first round platform is less than the radius of the second round platform, described first round platform is placed in die cavity, described second round platform is placed in the upper surface of cavity lateral, described first round platform and the second round platform are wholely set, this model utility has high leak tightness, alleviate the damage of overload buffer.
Description
Technical field
The utility model relates to a kind of buffer, and more particularly, it relates to a kind of hydraulic bjuffer.
Background technique
Hydraulic buffer a kind of impact kinetic energy is converted into hydraulic oil heat energy, realizes object and linearly to slow down the final a kind of hydraulic pressure installation steadily stopped.
At present, hydraulic pressure on market delays forming primarily of cylinder body, piston rod, bearing, piston, oil sealing, spring, interior pipe, impact head of buffer, when the hydraulic oil that piston rod will drive in piston press cylinder body by external impacts, to be discharged one by one by the oil drainage hole of interior pipe after hydraulic oil pressurized, also be back to interior pipe by the spill port of interior pipe by the hydraulic oil of interior pipe discharge simultaneously; When external force disappears, the action that piston rebounds initial point wait next time by spring.Principle according to this, hydraulic buffer effectively stops the object balance in movement.
Hydraulic bjuffer is when being subject to overload buffer, and impact head and cylinder body hard hit, because impact head and cylinder body are all metal manufactures, can produce noise and damage impact head and cylinder body.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of hydraulic bjuffer, and this use is novel has high leak tightness, alleviates the damage of overload buffer.
For achieving the above object, the utility model provides following technological scheme:
A kind of hydraulic bjuffer, comprise cylinder body, piston rod and impact head, described cylinder body is cylindrical, described cylinder body comprises seal ring, the sidewall of described hydraulic rod body extends to the direction of impact head and forms die cavity, described seal ring is embedded in die cavity, the height of described seal ring is greater than the height of die cavity, the shaft core position of described seal ring is provided with through hole, described piston rod one end is inserted through through hole and extends in cylinder body, it is outer and be fixedly connected with impact head that the described piston rod the other end is located at cylinder body, described seal ring comprises the first round platform and the second round platform, the radius of described first round platform is less than the radius of the second round platform, described first round platform is placed in die cavity, described second round platform is placed in the upper surface of cavity lateral, described first round platform and the second round platform are wholely set.
By adopting technique scheme, described seal ring is arranged between impact head and cylinder body, described piston rod is inserted through seal ring and arranges, described seal ring is placed in die cavity, described seal ring further can ensure the sealing of cylinder body, prevent the leakage of hydraulic oil, hydraulic bjuffer is when the impact of being transshipped, when the stressed drive piston rod of impact head bounces back, impact head contacts with seal ring, impact head is stoped directly to contact with cylinder body, seal ring compressive deformation plays the effect of buffering further, avoid because overload buffer damages this equipment, described seal ring is set to two round platforms, and the first round platform mainly plays sealing and fixation, and the second round platform mainly plays and prevents overload buffer impact head from clashing into cylinder body, and damage this hydraulic bjuffer, the first described round platform and the second round platform are wholely set.
The utility model is set to further: the material of described seal ring is rubber, and the side of described first round platform is provided with draw-in groove, and the sidewall of described die cavity is provided with for the fixture block with the clamping of draw-in groove phase.
By adopting technique scheme, elastic strain and deformation recovery can be there is in rubber, the plasticity of rubber is high, and all better in elasticity, intensity and hardness, cost of production is low, and structure is simple, the sidewall of fixture block and die cavity is wholely set, draw-in groove is used for and draw-in groove clamping, and the structure of fixture block is simple, and that impels seal ring and cylinder body to assemble is convenient and stable.
The utility model is set to further: described first round platform to be conflicted with the diapire of die cavity relative to the other end of the second round platform and is connected.
By adopting technique scheme, conflicting with die cavity diapire and be connected in one end of the first round platform, reduces the pulling force of the first round platform to the second round platform, strengthens the cushioning effect of seal ring, ensure the working life of seal ring simultaneously.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of hydraulic bjuffer embodiment of the utility model;
Fig. 2 is the seal ring schematic diagram of a kind of hydraulic bjuffer embodiment of the utility model.
In figure: 1, cylinder body; 11, seal ring; 111, the first round platform; 1111, draw-in groove; 112, the second round platform; 12, die cavity; 121, fixture block; 2, piston rod; 3, impact head.
Embodiment
Referring to figs. 1 through Fig. 2, a kind of hydraulic bjuffer embodiment of the utility model is described further.
A kind of hydraulic bjuffer, comprise cylinder body 1, piston rod 2 and impact head 3, described cylinder body 1 is cylindrical, described cylinder body 1 comprises seal ring 11, the sidewall of described hydraulic rod body extends to the direction of impact head 3 and forms die cavity 12, described seal ring 11 is embedded in die cavity 12, the height of described seal ring 11 is greater than the height of die cavity 12, the shaft core position of described seal ring 11 is provided with through hole, described piston rod 2 one end is inserted through through hole and extends in cylinder body 1, it is outer and be fixedly connected with impact head 3 that described piston rod 2 the other end is located at cylinder body 1, described seal ring 11 comprises the first round platform 111 and the second round platform 112, the radius of described first round platform 111 is less than the radius of the second round platform 112, described first round platform 111 is placed in die cavity 12, described second round platform 112 is placed in the upper surface of die cavity 12 sidewall, and described first round platform 111 and the second round platform 112 are wholely set.
By adopting technique scheme, described seal ring 11 is arranged between impact head 3 and cylinder body 1, described piston rod 2 is inserted through seal ring 11 and arranges, described seal ring 11 is placed in die cavity 12, described seal ring 11 further can ensure the sealing of cylinder body 1, prevent the leakage of hydraulic oil, hydraulic bjuffer is when the impact of being transshipped, when the stressed drive piston rod 2 of impact head 3 bounces back, impact head 3 contacts with seal ring 11, impact head 3 is stoped directly to contact with cylinder body 1, seal ring 11 compressive deformation plays the effect of buffering further, avoid because overload buffer damages this equipment, described seal ring 11 is set to two round platforms, first round platform 111 mainly plays sealing and fixation, second round platform 112 mainly plays and prevents overload buffer impact head 3 from clashing into cylinder body 1, damage this hydraulic bjuffer, the first described round platform 111 and the second round platform 112 are wholely set that (seal ring 11 can be set to multistage polyhedral shape, in order to avoid drawing crack phenomenon appears in adjacent two round platforms, seal ring 11 prioritizing selection two round platforms).
The material of described seal ring 11 is rubber, and the side of described first round platform 111 is provided with draw-in groove 1111, and the sidewall of described die cavity 12 is provided with for the fixture block 121 with the clamping of draw-in groove 1111 phase.
By adopting technique scheme, elastic strain and deformation recovery can be there is in rubber, the plasticity of rubber is high, and in elasticity, intensity and hardness are all better, cost of production is low, described fixture block 121 is wholely set with the sidewall of die cavity 12, draw-in groove 1111 for draw-in groove 1111 clamping, and the structure of fixture block 121 is simple, that impels seal ring 11 and cylinder body 1 to assemble is convenient and stable, fixture block 121 and draw-in groove 1111 complete assembly process by extruding, and (rubber making seal ring 11 can select NBR, HNBR, SIL, VITON, FIS, EPDM, CP, in order to can be better anticorrosive, the characteristic of tear-proof and incompressible distortion, sealing circle 1111 prioritizing selection HNBR, draw-in groove 1111 and fixture block 121 are equipped with at least one).
Described first round platform 111 to be conflicted with the diapire of die cavity 12 relative to the other end of the second round platform 112 and is connected.
By adopting technique scheme, conflicting with die cavity 12 diapire and be connected in one end of the first round platform 111, reduces the pulling force of the first round platform 111 to the second round platform 112, strengthens the cushioning effect of seal ring 11, ensures the working life of seal ring 11 simultaneously.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. a hydraulic bjuffer, comprise cylinder body, piston rod and impact head, described cylinder body is cylindrical, it is characterized in that: described cylinder body comprises seal ring, the sidewall of described hydraulic rod body extends to the direction of impact head and forms die cavity, described seal ring is embedded in die cavity, the height of described seal ring is greater than the height of die cavity, the shaft core position of described seal ring is provided with through hole, described piston rod one end is inserted through through hole and extends in cylinder body, it is outer and be fixedly connected with impact head that the described piston rod the other end is located at cylinder body, described seal ring comprises the first round platform and the second round platform, the radius of described first round platform is less than the radius of the second round platform, described first round platform is placed in die cavity, described second round platform is placed in the upper surface of cavity lateral, described first round platform and the second round platform are wholely set.
2. a kind of hydraulic bjuffer according to claim 1, is characterized in that: the material of described seal ring is rubber, and the side of described first round platform is provided with draw-in groove, and the madial wall of described die cavity is provided with the projection with draw-in groove clamping.
3. a kind of hydraulic bjuffer according to claim 2, is characterized in that: described first round platform to be conflicted with the diapire of die cavity relative to the other end of second contact surface and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420590168.8U CN204186864U (en) | 2014-02-21 | 2014-10-13 | A kind of hydraulic bjuffer |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2014200764148 | 2014-02-21 | ||
| CN201420076414 | 2014-02-21 | ||
| CN201420590168.8U CN204186864U (en) | 2014-02-21 | 2014-10-13 | A kind of hydraulic bjuffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204186864U true CN204186864U (en) | 2015-03-04 |
Family
ID=52618871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420590168.8U Expired - Fee Related CN204186864U (en) | 2014-02-21 | 2014-10-13 | A kind of hydraulic bjuffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204186864U (en) |
-
2014
- 2014-10-13 CN CN201420590168.8U patent/CN204186864U/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: 20150304 Termination date: 20161013 |