CN101603575A - Vibration damper - Google Patents
Vibration damper Download PDFInfo
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- CN101603575A CN101603575A CNA2009100962956A CN200910096295A CN101603575A CN 101603575 A CN101603575 A CN 101603575A CN A2009100962956 A CNA2009100962956 A CN A2009100962956A CN 200910096295 A CN200910096295 A CN 200910096295A CN 101603575 A CN101603575 A CN 101603575A
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- vibration damper
- annular chamber
- cylinder barrel
- cylinder body
- valve
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Abstract
The invention provides a kind of vibration damper, belong to field of mechanical technique.Problems such as it has solved prior oscillating damper installation and removal trouble, processing technology complexity, yield rate is low, product cost is high, service behaviour is stable inadequately, the damping regulative mode is single.This vibration damper, comprise outer cylinder body and cylinder barrel, in cylinder barrel, be provided with piston and piston rod, piston is divided into epicoele and cavity of resorption with cylinder barrel, outer cylinder body is extended in the outer end of piston rod, also be provided with in the outer cylinder body and be placed in the outer middle cylindrical shell of cylinder barrel, between outer cylinder body and middle cylindrical shell, has annular chamber one, between middle cylindrical shell and cylinder barrel, has annular chamber two, one in annular chamber one and the annular chamber two is shoe cream room, another is for following oil pocket, epicoele and cavity of resorption respectively with follow oil pocket and be connected, cavity of resorption is connected with shoe cream room.Advantages such as the present invention mounts and dismounts conveniently, processing technology is simple, yield rate is high, product cost is low, working stability is high, the damping regulative mode is various.
Description
Technical field
The present invention relates to field of mechanical technique, especially relate to a kind of vibration damper.
Background technique
Along with people are more and more high with the requirement of stability to the travelling comfort of vehicle, people have designed various vehicle dampers.Vibration damper is arranged between vehicle frame and the vehicle bridge, and the piston in the vibration damper moves up and down, and the fluid in the vibration damper chamber just flows in another chamber through different holes from a chamber repeatedly.The intermolecular interior friction of friction between hole wall and fluid and fluid at this moment forms damping force to vibration, makes automobile vibrational energy be converted into fluid heat energy, is dispersed in the atmosphere by the vibration damper absorption again.
In order to solve the service behaviour that improves vibration damper, people have carried out long-term exploration, have proposed various solutions.For example, Chinese patent literature discloses a kind of bitubular variable damping force hydraulic vehicle shock absorber [publication number: CN2448600Y], it comprises urceolus, cylinder barrel and rubber buffer bush, be provided with piston and piston rod in the cylinder barrel, urceolus is stretched out in the piston rod outer end, the bottom of cylinder barrel is provided with compression valve, and the cylinder barrel upper inner is provided with and becomes the damping groove.The utility model adopts the method that strengthens fluid circulation passage sectional area, makes damping force can linearity not increase along with the increase of relative velocity between vehicle bridge and vehicle frame, remains in certain limit.But in this scheme, the design of oil channel structures is reasonable inadequately,
The applicant had also once applied for the patent [publication number: CN201068949Y] of " improving the vehicle shock absorber of structure " by name, comprise an outer cylinder body, in outer cylinder body, be with a cylinder barrel, in cylinder barrel, be provided with piston and with the joining piston rod of piston, piston is separated into epicoele and cavity of resorption with cylinder barrel, outer cylinder body is extended in the outer end of piston rod, described outer cylinder body bottom is provided with the outer oil pipe that follows that is connected with the cavity of resorption of cylinder barrel, the described outer epicoele that oil pipe extends to cylinder barrel that follows links up the epicoele and the cavity of resorption of cylinder barrel.
Though such scheme can effectively improve the service behaviour of vibration damper, is difficult to manufacturing, the installation difficulty of particularly following oil pipe outward is bigger, occurs easily scrapping in manufacture process, and yield rate is lower.And, in use occur easily damaging, it is all convenient inadequately to change and keep in repair.On the other hand, the cost of manufacturing is also higher, and Economy is relatively poor.
Summary of the invention
The objective of the invention is at the problems referred to above, a kind of manufacturing that is easy to is provided, structural strength height, the vibration damper of stable and reliable working performance.
For achieving the above object, the present invention has adopted following technical proposal: this vibration damper, comprise outer cylinder body and be located at the interior cylinder barrel of outer cylinder body, the piston rod that in cylinder barrel, is provided with piston and is connected with piston, piston is divided into epicoele and cavity of resorption with cylinder barrel, outer cylinder body is extended in the outer end of piston rod, it is characterized in that, also be provided with in the described outer cylinder body and be placed in the outer middle cylindrical shell of cylinder barrel, between outer cylinder body and middle cylindrical shell, has annular chamber one, between middle cylindrical shell and cylinder barrel, has annular chamber two, one in above-mentioned annular chamber one and the annular chamber two is shoe cream room, another is for following oil pocket, described epicoele and cavity of resorption respectively with follow oil pocket and be connected, described cavity of resorption is connected with shoe cream room.
Because cylindrical shell in the middle of being provided with between outer cylinder body and cylinder barrel has formed annular chamber one and annular chamber two between outer cylinder body and middle cylindrical shell and middle cylindrical shell and cylinder barrel, and annular chamber one and annular chamber two can be respectively as shoe cream room with follow oil pocket and use.The structure of this three layers of cylindrical shell has greatly improved the convenience of whole vibration damper assembling, is easy to processing and fabricating, and the yield rate height, is difficult for producing waste product.In addition, owing to adopt annular chamber as shoe cream room with follow oil pocket, increased space availability ratio, the oil circuit of hydraulic oil is smooth and easy, is easy to realize the stepless linearly adjust of damping value.
In above-mentioned vibration damper, the bottom of described outer cylinder body is provided with modulating valve, and the described oil pocket that follows is connected with cavity of resorption by modulating valve.Regulate by modulating valve damping size easily.
In above-mentioned vibration damper, described annular chamber one is a shoe cream room, and annular chamber two is for following oil pocket.
As another kind of scheme, in above-mentioned vibration damper, described annular chamber one is for following oil pocket, and annular chamber two is a shoe cream room.
Certainly, as following oil pocket and annular chamber one conduct when following oil pocket and annular chamber two as shoe cream room, need adjust accordingly by all the other structures of whole vibration damper as shoe cream room and annular chamber two for annular chamber one.
In above-mentioned vibration damper, described modulating valve comprises regulating valve seat, spool, valve block and the spring with oily passage, the two ends that described regulating valve seat is fixed on outer cylinder body bottom and crosses oily passage are respectively with cavity of resorption with follow oil pocket and be connected, in crossing oily passage, spool, valve block and spring are housed, have through hole on the valve block, the front end of spool is plugged in the through hole, and the spool front end has front fine and rear thick structure, between spool and valve block, be provided with spring, one end of spring acts on the valve block, and the other end acts on the spool.By the relation of the position between regulating spool and the valve block, can realize the adjusting of damping value size.
In above-mentioned vibration damper, described spool rear end and an adjusting knob are connected, and this adjusting knob and regulating valve seat link by worm structure.Can adjust moving valve core by rotating adjusting knob, realize the adjusting of damping value size.
In above-mentioned vibration damper, the top of described outer cylinder body is provided with guider, and piston rod is located in the guider, has the oil hole of crossing that can be communicated with epicoele and follow oil pocket on guider.
In above-mentioned vibration damper, the bottom of described cylinder barrel also is provided with a compression valve, is provided with one-way valve on compression valve; Described piston is provided with one-way valve.
In above-mentioned vibration damper, described compression valve is provided with ring-shaped step one and the ring-shaped step two that distributes vertically, and described cylinder barrel one end is resisted against on the ring-shaped step one, and an end of described middle cylindrical shell is resisted against on the ring-shaped step two.The piston rod of compression valve is thinner in this scheme.
As another kind of scheme, in above-mentioned vibration damper, described compression valve seat is provided with ring-shaped step three, and described modulating valve is provided with ring-shaped step four, described cylinder barrel one end is resisted against on the ring-shaped step three, and an end of described middle cylindrical shell is resisted against on the ring-shaped step four.The piston rod of compression valve is thicker in this scheme.
Compared with prior art, the advantage of this vibration damper is: 1, outer cylinder body, middle cylindrical shell and cylinder barrel can mount and dismount easily, and processing technology is simple, are easy to make.2, yield rate height is not prone to and scraps phenomenon, becomes to produce cost lower.3, can be easily with oil-bearing structure with follow oily structure and realize oil circuit UNICOM, realize the stepless adjustment of resistance of shock absorber; And can both adjust damping value in piston rod propelling and reseting procedure, regulative mode is various, stable work in work.
Description of drawings
Fig. 1 is embodiment's 1 a provided by the invention sectional structure schematic representation.
Fig. 2 is embodiment's 2 a provided by the invention sectional structure schematic representation.
Among the figure, outer cylinder body 1, cylinder barrel 2, epicoele 21, cavity of resorption 22, middle cylindrical shell 3, piston 4, piston rod 5, annular chamber 1, annular chamber 27, modulating valve 8, regulating valve seat 81, mistake oily passage 81a, ring-shaped step four 81b, spool 82, valve block 83, through hole 83a, spring 84, adjusting knob 9, guider 10, mistake oil hole 10a, compression valve 11, ring-shaped step one 11a, ring-shaped step two 11b, ring-shaped step three 11c, one-way valve 12.
Embodiment
Embodiment 1:
As shown in Figure 1, this vibration damper comprises component such as outer cylinder body 1, cylinder barrel 2, middle cylindrical shell 3, piston 4, piston rod 5, modulating valve 8, guider 10.
In the present embodiment, annular chamber 1 is a shoe cream room, and annular chamber 27 is for following oil pocket.Epicoele 21 and cavity of resorption 22 respectively with follow oil pocket and be connected, cavity of resorption 22 is connected with shoe cream room, follows oil pocket and is connected with cavity of resorption 22 by modulating valve 8.The top of outer cylinder body 1 is provided with guider 10, and piston rod 5 is located in the guider 10, has the oil hole 10a excessively that can be communicated with epicoele 21 and follow oil pocket on guider 10.The bottom of cylinder barrel 2 also is provided with a compression valve 11, is provided with one-way valve 12 on compression valve 11; Described piston 4 is provided with one-way valve 12.
As shown in Figure 1, modulating valve 8 comprises regulating valve seat 81, spool 82, valve block 83 and the spring 84 with oily passage 81a.The two ends that regulating valve seat 81 is fixed on outer cylinder body 1 bottom and crosses oily passage 81a are respectively with cavity of resorption 22 with follow oil pocket and be connected, in crossing oily passage 81a, spool 82, valve block 83 and spring 84 are housed, have through hole 83a on the valve block 83, the front end of spool 82 is plugged in the through hole 83a, and spool 82 front ends have front fine and rear thick structure, be provided with spring 84 between spool 82 and valve block 83, an end of spring 84 acts on the valve block 83, and the other end acts on the spool 82.Spool 82 rear ends and an adjusting knob 9 are connected, and this adjusting knob 9 and regulating valve seat 81 link by worm structure.Can realize the change of spool 82 positions easily by rotating adjusting knob 9, thereby realize the adjusting of damping value size.
Embodiment 2:
As shown in Figure 2, in the present embodiment, compression valve seat 11 is provided with ring-shaped step three 11c, and described modulating valve 81 is provided with ring-shaped step four 81b, and cylinder barrel 2 one ends are resisted against on ring-shaped step three 11c, and an end of middle cylindrical shell 3 is resisted against on ring-shaped step four 81b.Piston rod 5 in the present embodiment is thicker.All the other all with embodiment 1 roughly the same, this paper does not do and gives unnecessary details.
Embodiment 3:
In the present embodiment, annular chamber 1 is for following oil pocket, and annular chamber 27 is a shoe cream room.Because the shoe cream room in this enforcement is different with embodiment 2 with embodiment 1 with the position of following oil pocket, the remaining part structure of vibration damper, for example guider, modulating valve, compression valve etc. also should adjust accordingly.All the other all with embodiment 1 or embodiment 2 roughly the same, this paper does not do and gives unnecessary details.
Specific embodiment described herein only is that the present invention's spirit is illustrated.The technician of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used outer cylinder body 1, cylinder barrel 2, epicoele 21, cavity of resorption 22, middle cylindrical shell 3, piston 4, piston rod 5, annular chamber 1, annular chamber 27, modulating valve 8, regulating valve seat 81, crosses oily passage 81a, ring-shaped step four 81b, spool 82, valve block 83, through hole 83a, spring 84, adjusting knob 9, guider 10, crossed terms such as oil hole 10a, compression valve 11, ring-shaped step one 11a, ring-shaped step 11b, ring-shaped step three 11c, one-way valve 12 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; They are construed to any additional restriction all is contrary with spirit of the present invention.
Claims (10)
1. vibration damper, comprise outer cylinder body (1) and be located at the interior cylinder barrel (2) of outer cylinder body (1), the piston rod (5) that in cylinder barrel (2), is provided with piston (4) and is connected with piston (4), piston (4) is divided into epicoele (2 1) and cavity of resorption (2 2) with cylinder barrel (2), outer cylinder body (1) is extended in the outer end of piston rod (5), it is characterized in that, also be provided with in the described outer cylinder body (1) and be placed in the outer middle cylindrical shell (3) of cylinder barrel (2), between outer cylinder body (1) and middle cylindrical shell (3), has annular chamber one (6), between middle cylindrical shell (3) and cylinder barrel (2), has annular chamber two (7), one in above-mentioned annular chamber one (6) and the annular chamber two (7) is shoe cream room, another is for following oil pocket, described epicoele (2 1) and cavity of resorption (2 2) respectively with follow oil pocket and be connected, described cavity of resorption (2 2) is connected with shoe cream room.
2. vibration damper according to claim 1 is characterized in that, the bottom of described outer cylinder body (1) is provided with modulating valve (8), and the described oil pocket that follows is connected with cavity of resorption (2 2) by modulating valve (8).
3. vibration damper according to claim 1 is characterized in that, described annular chamber one (6) is a shoe cream room, and annular chamber two (7) is for following oil pocket.
4. vibration damper according to claim 1 is characterized in that, described annular chamber one (6) is for following oil pocket, and annular chamber two (7) is a shoe cream room.
5. vibration damper according to claim 3, it is characterized in that, described modulating valve (8) comprises and had oily passage (8 1 a) regulating valve seats (8 1), spool (82), valve block (8 3) and spring (84), described regulating valve seat (8 1) is fixed on outer cylinder body (1) bottom and crosses oily passage that (8 1 a) two ends are respectively with cavity of resorption (2 2) with follow oil pocket and be connected, (8 1 are equipped with spool (8 2) in a) crossing oily passage, valve block (8 3) and spring (84), (8 3 a) to have through hole on the valve block (8 3), the front end of spool (8 2) be plugged in through hole (8 3 a) in, and spool (8 2) front end has front fine and rear thick structure, between spool (8 2) and valve block (8 3), be provided with spring (84), one end of spring (84) acts on the valve block (8 3), and the other end acts on the spool (82).
6. vibration damper according to claim 5 is characterized in that, described spool (8 a 2) rear end and an adjusting knob (9) are connected, and this adjusting knob (9) links by worm structure with regulating valve seat (81).
7. according to any described vibration damper in the claim 1～6, it is characterized in that, the top of described outer cylinder body (1) is provided with guider (10), piston rod (5) is located in the guider (10), has the oil hole (10a) excessively that can be communicated with epicoele (21) and follow oil pocket on guider (10).
8. vibration damper according to claim 7 is characterized in that, the bottom of described cylinder barrel (2) also is provided with a compression valve (11), is provided with one-way valve (12) on compression valve (11); Described piston (4) is provided with one-way valve (12).
9. vibration damper according to claim 8, it is characterized in that, described compression valve (11) is provided with ring-shaped step one (11a) and the ring-shaped step two (11b) that distributes vertically, described cylinder barrel (2) one ends are resisted against on the ring-shaped step one (11a), and an end of described middle cylindrical shell (3) is resisted against on the ring-shaped step two (11b).
10. vibration damper according to claim 8, it is characterized in that, described compression valve seat (11) is provided with ring-shaped step three (11c), described modulating valve (81) is provided with ring-shaped step four (81b), described cylinder barrel (2) one ends are resisted against on the ring-shaped step three (11c), and an end of described middle cylindrical shell (3) is resisted against on the ring-shaped step four (81b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100962956A CN101603575A (en) | 2009-03-05 | 2009-03-05 | Vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100962956A CN101603575A (en) | 2009-03-05 | 2009-03-05 | Vibration damper |
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| Publication Number | Publication Date |
|---|---|
| CN101603575A true CN101603575A (en) | 2009-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100962956A Pending CN101603575A (en) | 2009-03-05 | 2009-03-05 | Vibration damper |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363008A (en) * | 2012-03-29 | 2013-10-23 | 株式会社昭和 | Hydraulic shock absorber |
| CN104033525A (en) * | 2014-06-26 | 2014-09-10 | 石家庄铁道大学 | High-damping-force magnetorheological damper |
| CN104235257A (en) * | 2014-09-09 | 2014-12-24 | 芜湖弘祥汽车减振器工业有限公司 | Flow regulator and shock absorber |
| CN112955675A (en) * | 2018-11-05 | 2021-06-11 | 日立安斯泰莫株式会社 | Buffer device |
-
2009
- 2009-03-05 CN CNA2009100962956A patent/CN101603575A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363008A (en) * | 2012-03-29 | 2013-10-23 | 株式会社昭和 | Hydraulic shock absorber |
| CN104033525A (en) * | 2014-06-26 | 2014-09-10 | 石家庄铁道大学 | High-damping-force magnetorheological damper |
| CN104033525B (en) * | 2014-06-26 | 2015-12-02 | 石家庄铁道大学 | Large damping force MR damper |
| CN104235257A (en) * | 2014-09-09 | 2014-12-24 | 芜湖弘祥汽车减振器工业有限公司 | Flow regulator and shock absorber |
| CN104235257B (en) * | 2014-09-09 | 2018-01-02 | 芜湖弘祥汽车减振器工业有限公司 | Flow regulator and damper |
| CN112955675A (en) * | 2018-11-05 | 2021-06-11 | 日立安斯泰莫株式会社 | Buffer device |
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Open date: 20091216 |