CN204140754U - Hydraulic buffer - Google Patents
Hydraulic buffer Download PDFInfo
- Publication number
- CN204140754U CN204140754U CN201420527086.9U CN201420527086U CN204140754U CN 204140754 U CN204140754 U CN 204140754U CN 201420527086 U CN201420527086 U CN 201420527086U CN 204140754 U CN204140754 U CN 204140754U
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- cylinder pressure
- bearing
- adjusting
- groove
- hydraulic buffer
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Abstract
The utility model discloses a kind of hydraulic buffer, aim to provide a kind of shaft seal performance good, long service life, pre-police strength is adjustable, adaptability is hydraulic buffer widely, comprise outer cylinder pressure, interior cylinder pressure, pressure accumulater, bonnet, the piston rod being placed in spring in interior cylinder pressure and piston and being connected on piston, the on the piston rod sheathed and bearing be placed in outer cylinder pressure, described bearing threads is connected with bearing cap, oil sealing chamber is configured with between described bearing cap and described bearing, described oil sealing chamber is built-in with oil seal, described oil sealing chamber wall is provided with groove in opposite directions, described groove is built-in with Compress Spring, described Compress Spring is connected with pressing plate, described pressing plate is placed in conflict between described Compress Spring and oil seal and with oil seal and is connected, in described interior cylinder pressure, the opposite side of opposing pistons is provided with pre-police strength adjusting part.
Description
Technical field
The utility model relates to a kind of vibration damper technical field, more particularly: it relates to a kind of hydraulic buffer.
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.
There is following Railway Project in existing hydraulic buffer: one, the problem of shaft seal structure, the shaft seal structure of traditional hydraulic buffer comprises bearing, bearing cap, oil sealing chamber is formed between described bearing and bearing cap, oil seal is built-in with to reach the object of oil sealing in oil sealing chamber, but there is following Railway Project in traditional shaft seal structure, fixing between bearing and bearing cap rotates fixing by extra screw, such fixed structure after hydraulic buffer uses for a long time because loosened screw can cause shaft seal hydraulic performance decline; Oil seal moves back and forth meeting effect of attrition shaft seal performance gradually in process at piston rod, and then has influence on the working life of buffer; Two, buffer can only absorb fixing energy, when energy to be absorbed changes, corresponding buffer must be changed, and some equipment needs according to the different product of processing and produces different impact forces, this fixed buffer cannot adapt to the change of equipment processing strength and the change of impact force that causes, and adaptability is low; In sum, also need to improve.
Model utility content
For the deficiency that prior art exists, it is good that the purpose of this utility model is to provide a kind of shaft seal performance, and long service life, pre-police strength is adjustable, and adaptability is hydraulic buffer widely.
For achieving the above object, the utility model provides following technological scheme: a kind of hydraulic buffer, comprise outer cylinder pressure, interior cylinder pressure, pressure accumulater, bonnet, the piston rod being placed in spring in interior cylinder pressure and piston and being connected on piston, the on the piston rod sheathed and bearing be placed in outer cylinder pressure, described bearing threads is connected with bearing cap, oil sealing chamber is configured with between described bearing cap and described bearing, described oil sealing chamber is built-in with oil seal, described oil sealing chamber wall is provided with groove in opposite directions, described groove is built-in with Compress Spring, described Compress Spring is connected with pressing plate, described pressing plate is placed in conflict between described Compress Spring and oil seal and with oil seal and is connected, in described interior cylinder pressure, the opposite side of opposing pistons is provided with pre-police strength adjusting part.
By adopting technique scheme, this hydraulic buffer improves shaft seal structure, first bearing and bearing cap are threaded connection, the fixing rotation by extra screw solved between bearing and bearing cap is fixed, screw is fixing can cause shaft seal hydraulic performance decline due to loosened screw, adopting is threaded effectively raises fixing stability, improve shaft seal performance, then oil sealing chamber is improved, oil sealing chamber wall is provided with groove in opposite directions and is built-in with Compress Spring, piston rod moves back and forth and weares and teares gradually in the process of oil seal, Compress Spring provides pre-police strength all the time, when after oil seal wearing and tearing, Compress Spring drives pressing plate and then oil seal is conflicted piston rod all the time, the wearing and tearing solving oil seal cause the problem of the decline of shaft seal performance, improve shaft seal performance, and then improve long service life, in interior cylinder pressure, the opposite side of opposing pistons is provided with arranging of pre-police strength adjusting part and realizes the pre-police strength adjustment of spring, so just can adapt to the change of equipment processing strength and the change of impact force that causes, adaptability is extensive, when operating force quantitative change is large, regulate pre-police strength adjusting part Compress Spring, on the contrary, then adapt to little processing strength, this hydraulic buffer realize the pre-police strength of spring adjustable so that improve adaptability.
The utility model is set to further: the adjusting nut that described pre-police strength adjusting part comprises the adjusting knob be located on bonnet, is placed in the adjusting bolt in bonnet and is located in interior cylinder pressure, described adjusting bolt one end is fixed on adjusting knob, the other end is threaded with described adjusting nut, described interior cylinder pressure comprises cylinder body and cylinder cap, described adjusting nut is between cylinder cap and spring, described adjusting nut is provided with limiting through hole, described limiting through hole Spielpassung limited location bar, described position-limited lever is fixed on cylinder cap.
By adopting technique scheme, the adjustable adjusting knob by pre-police strength adjusting part of pre-police strength, adjusting bolt and adjusting nut realize, because adjusting nut is provided with the setting of limiting through hole and limiting through hole Spielpassung limited location bar, Spielpassung guarantees the stable of hydraulic pressure in interior cylinder pressure, when rotation of adjustment knob drives the rotation of adjusting bolt, only can move at the axial direction of position-limited lever owing to limiting so adjusting nut to adjusting nut rotation, realize adjusting nut to spring or compression, or recover, and then realize the pre-police strength adjustment of spring, improve adaptability.
The utility model is set to further: described bonnet comprises lid and gland, is provided with restraining groove in described lid, and described adjusting bolt includes limited part, and described limited part is provided with the limiting stopper suitable with restraining groove, and described limited part is placed in lid.
By adopting technique scheme, bonnet is divided into lid and gland two-part, facilitate the assembling of adjusting bolt, spacing being coupled in restraining groove by limiting stopper of adjusting bolt is realized, if lack the setting spacing to adjusting bolt, so just cannot realize the movement of adjusting nut, and then not reach the pre-police strength adjustment of spring.
The utility model is set to further: the outer wall of described bearing offers seal groove, is provided with O-ring seals in described seal groove, and described O-ring seals is conflicted with described outer cylinder pressure and is connected.
By adopting technique scheme, the outer wall of bearing offers seal groove and in seal groove, has the setting of O-ring seals, avoids oil to release between bearing and outer cylinder pressure, affects the working life of buffer.
The utility model is set to further: outer cylinder pressure is provided with the limiting stopper of restriction bearing displacement.
By adopting technique scheme, the setting of limiting stopper avoids bearing displacement to guarantee oil sealing.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model hydraulic buffer;
Fig. 2 is the enlarged view of A in the utility model Fig. 1;
Fig. 3 is the enlarged view of B in the utility model Fig. 1.
In figure: 1, outer cylinder pressure; 11, limiting stopper; 2, interior cylinder pressure; 21, pre-police strength adjusting part; 211, adjusting knob; 212, adjusting bolt; 2121, limited part; 2122, limiting stopper; 213, adjusting nut; 2131, limiting through hole; 2132, position-limited lever; 22, cylinder body; 23, cylinder cap; 3, pressure accumulater; 4, bonnet; 41, lid; 411, restraining groove; 42, gland; 5, spring; 6, piston; 7, piston rod; 8, bearing; 81, seal groove; 82, O-ring seals; 9, bearing cap; 10, oil sealing chamber; 101, oil seal; 102, groove; 103, Compress Spring; 104, pressing plate.
Embodiment
Shown in Fig. 3, a kind of hydraulic buffer of the present embodiment, comprise outer cylinder pressure 1, interior cylinder pressure 2, pressure accumulater 3, bonnet 4, the piston rod 7 being placed in spring 5 in interior cylinder pressure 2 and piston 6 and being connected on piston 6, to be set on piston rod 7 and the bearing 8 be placed in outer cylinder pressure 1, described bearing 8 has been threaded bearing cap 9, oil sealing chamber 10 is configured with between described bearing cap 9 and described bearing 8, described oil sealing chamber 10 is built-in with oil seal 101, described oil sealing chamber 10 wall is provided with groove 102 in opposite directions, described groove 102 is built-in with Compress Spring 103, described Compress Spring 103 is connected with pressing plate 104, described pressing plate 104 is placed in conflict between described Compress Spring 103 and oil seal 101 and with oil seal 101 and is connected, in described interior cylinder pressure 2, the opposite side of opposing pistons 6 is provided with pre-police strength adjusting part 21.
This hydraulic buffer improves shaft seal structure, first bearing 8 and bearing cap 9 are threaded connection, the fixing rotation by extra screw solved between bearing 8 and bearing cap 9 is fixed, screw is fixing can cause shaft seal hydraulic performance decline due to loosened screw, adopting is threaded effectively raises fixing stability, improve shaft seal performance, then oil sealing chamber 10 is improved, oil sealing chamber 10 wall is provided with groove 102 in opposite directions and is built-in with Compress Spring 103, piston rod 7 moves back and forth and weares and teares gradually in the process of oil seal 101, Compress Spring 103 provides pre-police strength all the time, when after oil seal wearing and tearing, Compress Spring 103 drives pressing plate 104 and then makes oil seal 101 conflict piston rod 7 all the time, the wearing and tearing solving oil seal 101 cause the problem of the decline of shaft seal performance, improve shaft seal performance, and then improve long service life, in interior cylinder pressure 2, the opposite side of opposing pistons 6 is provided with arranging of pre-police strength adjusting part 21 and realizes the pre-police strength adjustment of spring 5, so just can adapt to the change of equipment processing strength and the change of impact force that causes, adaptability is extensive, when operating force quantitative change is large, regulate pre-police strength adjusting part 21 Compress Spring 5, on the contrary, then adapt to little processing strength, it is adjustable that this hydraulic buffer realizes the pre-police strength of spring 5, and then raising adaptability, wherein pressure accumulater 3 is here pressure accumulation sponge, by the continuous oil suction of pressure accumulation sponge and the effect of draining the oil, so just effectively can reach the effect of a pressure accumulation.
Described pre-police strength adjusting part 21 comprises the adjusting knob 211 be located on bonnet 4, the adjusting nut 213 being placed in the adjusting bolt 212 in bonnet 4 and being located in interior cylinder pressure 2, described adjusting bolt 212 one end is fixed on adjusting knob 211, the other end is threaded with described adjusting nut 213, described interior cylinder pressure 2 comprises cylinder body 22 and cylinder cap 23, described adjusting nut 213 is between cylinder cap 23 and spring 5, described adjusting nut 213 is provided with limiting through hole 2131, described limiting through hole 2131 Spielpassung limited location bar 2132, described position-limited lever 2132 is fixed on cylinder cap 23.
The adjustable adjusting knob 211 by pre-police strength adjusting part 21 of pre-police strength, adjusting bolt 212 and adjusting nut 213 realize, because adjusting nut 213 is provided with the setting of limiting through hole 2131 and limiting through hole 2131 Spielpassung limited location bar 2132, Spielpassung guarantees the stable of hydraulic pressure in interior cylinder pressure 2, when rotation of adjustment knob 211 drives the rotation of adjusting bolt 212, move at the axial direction of position-limited lever 2132 owing to limiting so adjusting nut 213 meetings to adjusting nut 213 rotation, realize adjusting nut 213 pairs of springs 5 or compression, or recover, and then realize the pre-police strength adjustment of spring 5, improve adaptability.
Described bonnet 4 comprises lid 41 and gland 42, restraining groove 411 is provided with in described lid 41, described adjusting bolt 212 includes limited part 2121, and described limited part 2121 is provided with the limiting stopper 2122 suitable with restraining groove 411, and described limited part 2121 is placed in lid 41.
Bonnet is divided into lid 41 and gland 42 two-part, facilitate the assembling of adjusting bolt 212, spacing being coupled in restraining groove 411 by limiting stopper 2122 of adjusting bolt 212 is realized, if lack the setting spacing to adjusting bolt 212, so just cannot realize the movement of adjusting nut 213, and then not reach the pre-police strength adjustment of spring 5.
The outer wall of described bearing 8 offers seal groove 81, O-ring seals 82 is provided with in described seal groove 81, described O-ring seals 82 is conflicted with described outer cylinder pressure 1 and is connected, the outer wall of bearing 8 offers seal groove 81 and in seal groove 81, has the setting of O-ring seals 82, avoid oil to release between bearing 8 and outer cylinder pressure 1, affect the working life of buffer.
Outer cylinder pressure 1 is provided with the limiting stopper 11 of restriction bearing 8 displacement, and the setting of limiting stopper 11 avoids bearing 8 displacement to guarantee oil sealing.
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 (5)
1. a hydraulic buffer, comprise outer cylinder pressure, interior cylinder pressure, pressure accumulater, bonnet, the piston rod being placed in spring in interior cylinder pressure and piston and being connected on piston, the on the piston rod sheathed and bearing be placed in outer cylinder pressure, it is characterized in that: described bearing threads is connected with bearing cap, oil sealing chamber is configured with between described bearing cap and described bearing, described oil sealing chamber is built-in with oil seal, described oil sealing chamber wall is provided with groove in opposite directions, described groove is built-in with Compress Spring, described Compress Spring is connected with pressing plate, described pressing plate is placed in conflict between described Compress Spring and oil seal and with oil seal and is connected, in described interior cylinder pressure, the opposite side of opposing pistons is provided with pre-police strength adjusting part.
2. hydraulic buffer according to claim 1, it is characterized in that: the adjusting nut that described pre-police strength adjusting part comprises the adjusting knob be located on bonnet, is placed in the adjusting bolt in bonnet and is located in interior cylinder pressure, described adjusting bolt one end is fixed on adjusting knob, the other end is threaded with described adjusting nut, described interior cylinder pressure comprises cylinder body and cylinder cap, described adjusting nut is between cylinder cap and spring, described adjusting nut is provided with limiting through hole, described limiting through hole Spielpassung limited location bar, described position-limited lever is fixed on cylinder cap.
3. hydraulic buffer according to claim 2, it is characterized in that: described bonnet comprises lid and gland, be provided with restraining groove in described lid, described adjusting bolt includes limited part, described limited part is provided with the limiting stopper suitable with restraining groove, and described limited part is placed in lid.
4. the hydraulic buffer according to claim 1 or 2 or 3, is characterized in that: the outer wall of described bearing offers seal groove, is provided with O-ring seals in described seal groove, and described O-ring seals is conflicted with described outer cylinder pressure and is connected.
5. hydraulic buffer according to claim 4, is characterized in that: outer cylinder pressure is provided with the limiting stopper of restriction bearing displacement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420527086.9U CN204140754U (en) | 2014-02-21 | 2014-09-15 | Hydraulic buffer |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420076371.3 | 2014-02-21 | ||
| CN201420076371 | 2014-02-21 | ||
| CN201420527086.9U CN204140754U (en) | 2014-02-21 | 2014-09-15 | Hydraulic buffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204140754U true CN204140754U (en) | 2015-02-04 |
Family
ID=52417439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420527086.9U Expired - Fee Related CN204140754U (en) | 2014-02-21 | 2014-09-15 | Hydraulic buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204140754U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278322A (en) * | 2018-02-09 | 2018-07-13 | 河南理工大学 | One kind can pressure accumulation vehicle shock absorber |
| CN110107637A (en) * | 2019-05-10 | 2019-08-09 | 扬州华交轨道交通科技有限公司 | A kind of Oil sealing assembly of oleo-gear |
-
2014
- 2014-09-15 CN CN201420527086.9U patent/CN204140754U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278322A (en) * | 2018-02-09 | 2018-07-13 | 河南理工大学 | One kind can pressure accumulation vehicle shock absorber |
| CN110107637A (en) * | 2019-05-10 | 2019-08-09 | 扬州华交轨道交通科技有限公司 | A kind of Oil sealing assembly of oleo-gear |
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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: 20150204 Termination date: 20160915 |