CN101532548A - Inflation spring type shock absorber - Google Patents
Inflation spring type shock absorber Download PDFInfo
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- CN101532548A CN101532548A CN200910096474A CN200910096474A CN101532548A CN 101532548 A CN101532548 A CN 101532548A CN 200910096474 A CN200910096474 A CN 200910096474A CN 200910096474 A CN200910096474 A CN 200910096474A CN 101532548 A CN101532548 A CN 101532548A
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- piston
- cylinder body
- piston rod
- damping spring
- cylinder head
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Abstract
The invention discloses an inflation spring type shock absorber, which comprises a piston (13), a damping spring (7), a cylinder body (8) with an open left end, and a piston rod (9), wherein one end of the piston rod is connected with a fork truck bracket, and the other end of the piston rod is connected with the piston (13); the cylinder body (8) is sleeved outside the piston (13) and the piston rod (9); the piston (13) and the cylinder body (8) are in sliding fit; the left end of the cylinder body (8) is connected with a cylinder head (3); the piston rod (9) and the cylinder head (3) are in sliding fit; the damping spring (7) is sleeved on the piston rod (9), and two ends of the damping spring are supported between the piston (13) and the cylinder head (3); the side wall of the cylinder body (8) close to the cylinder head (3) is provided with a through hole (5) supplied for air to flow into the interior of the cylinder body (8); the circumferential surface of the cylinder body (8) is connected with a tubular joint (6); and the tubular joint (6) is communicated with the through hole (5). The shock absorber has the advantages of small volume and long service life.
Description
Technical field:
The present invention relates to a kind of damping device, specifically is a kind of inflation spring type shock absorber that is connected between fork truck drive unit and the fork truck vehicle frame.
Background technique:
At present, vehicular shock absorber generally comprises piston rod, piston, cylinder body and damping spring; One end of described piston rod is connected with automobile support, and its other end is connected with piston; Described cylinder body is enclosed within piston and piston rod outside; One end of described cylinder body is connected with automotive proplsion; Described damping spring cylinder interior and be supported on piston and cylinder body between.The automobile running that adopts above-mentioned vibration damper at not level road or wheel when the obstacle top is crossed, car body bob or vibrations occur because of self gravitation, at this moment, automobile support can drive piston and press down damping spring under the effect of car body gravity, thereby make automotive proplsion and automobile support generation relative displacement, when automobile overcomes obstacles when travelling on more flat road surface, the car body vibrations are eliminated, compressed damping spring utilizes rebounding force to return to original state, the damping device of said structure relies on being compressed repeatedly and rebounding of damping spring, thereby has effectively reduced the vibrations that automobile is subjected in the process of moving.Because the damping spring in the said structure vibration damper is only applicable to the lighter vehicle of a part of car body weight, as motorcycle, pony car etc., therefore, for some heavy vehicles, as fork truck, production firm generally all can only realize cushioning effect by the diameter and the spring external diameter that increase the number of springs in the vibration damper or increase spring spring silk, but number of springs increase or the increase of spring spring filament diameter and spring external diameter has increased the volume of vibration damper.In addition, because described damping spring is to be in repeatedly compression and bounce-back state for a long time in vehicle traveling process, so damping spring was easy to because of weariness working reduction of service life.
Summary of the invention:
The technical problem to be solved in the present invention is, provides that a kind of volume is little, the inflation spring type shock absorber of long service life.
Technical solution of the present invention is that a kind of inflation spring type shock absorber with following structure is provided: it comprises that the cylinder body of piston, damping spring, left end opening and an end are used for being connected the piston rod that the other end is connected with piston with the fork truck support; Described cylinder body is enclosed within piston and piston rod outside; Described piston and cylinder body are slidingly matched; The left end of described cylinder body is connected with a cylinder head; Described piston rod and cylinder head are slidingly matched; Described damping spring be enclosed within on the piston rod body of rod and two end supports between piston and cylinder head; The sidewall of the close cylinder head of described cylinder body is provided with a supplied gas and enters the through hole of cylinder interior; Be connected with a tube-shaped joint on the circumferential surface of described cylinder body; Described tube-shaped joint is connected with through hole.
After adopting above structure, compare with the prior art pressure, the present invention has the following advantages: because the present invention enters the through hole of cylinder interior at described cylinder body near being provided with a supplied gas on the sidewall of cylinder head, therefore, for the heavier vehicle of car body weight, the user can feed the gas with certain pressure by this through hole to cylinder interior, at this moment, the present invention can be under the situation that number of springs or spring spring filament diameter and spring external diameter remain unchanged, promptly guarantee to increase bearing capacity of the present invention, i.e. cushioning ability by gas pressure under the situation of original constancy of volume.In addition, effect is different separately with having only damping spring in the prior art vibration damper, damping spring among the present invention is be compressed gas time effect, therefore, decrement when it can effectively reduce damping spring work, and reduced damping spring and be in the number of times that is compressed by the limit for a long time, thereby reduced the impaired probability of damping spring, further prolonged working life of the present invention.
Description of drawings:
Accompanying drawing is the sectional structure schematic representation of inflation spring type shock absorber of the present invention.
Shown in the figure, 1, axle bed, 2, dust ring, 3, cylinder head, 4, seal ring I, 5, through hole, 6, tube-shaped joint, 7, damping spring, 8, cylinder body, 9, piston rod, 10, seal ring II, 11, guide ring I, 12, the ear seat, 13, piston, 14, " 0 " shape seal ring, 15, guide ring II.
Specific embodiment:
The invention will be further described below in conjunction with the drawings and specific embodiments:
As shown in the figure, in this specific embodiment, inflation spring type shock absorber of the present invention comprises that the cylinder body 8 of piston 13, damping spring 7, left end opening and an end are connected the piston rod 9 that the other end is connected with piston 13 by axle bed 1 with fork truck support (not shown); Described cylinder body 8 is enclosed within piston 13 and piston rod 9 outsides; Described piston 13 is slidingly matched with cylinder body 8; Be connected with seal ring II10 and guide ring I11 between the inner circumferential surface of the external peripheral surface of described piston 13 and described cylinder body 8; The left end of described cylinder body 8 is connected with a cylinder head 3, and its right-hand member is connected on the fork truck drive unit (not shown) by ear seat 12; Described ear seat 12 is welded on the cylinder body 8; Be connected with " 0 " shape seal ring 14 between the external peripheral surface of the inner circumferential surface of described cylinder body 8 and described cylinder head 3; Described piston rod 9 is slidingly matched with cylinder head 3; Be connected with dust ring 2, seal ring I4 and guide ring II15 between the external peripheral surface of the inner circumferential surface of described cylinder head 3 and described piston rod 9; Described damping spring 7 be enclosed within on piston rod 9 bodies of rod and two end supports between piston 13 and cylinder head 3; Described cylinder body 8 is provided with the through hole 5 that a supplied gas enters cylinder body 8 inside near the sidewall of cylinder head 3; Be welded with a tube-shaped joint 6 on the circumferential surface of described cylinder body 8; Described tube-shaped joint 6 is connected with through hole 5.In this specific embodiment, the setting height(from bottom) of described ear seat 12 is higher than the setting height(from bottom) of described axle bed 1, thereby the present invention is in when static, and when promptly fork truck does not move, described damping spring 7 will keep a kind of little tension state always under the effect of fork truck car body deadweight.
Working principle of the present invention is: when fork truck travels at not level road or wheel when the obstacle top is crossed, the fork truck car body bob or vibrations occur because of self gravitation, at this moment, the fork truck support can drive piston 13 and press down damping spring 7 and the gas that feeds in the cylinder body under the effect of fork truck car body gravity, thereby make fork truck drive unit and fork truck support generation relative displacement, when fork truck overcomes obstacles when travelling on more flat road surface, the car body vibrations are eliminated, gas in compressed damping spring 7 and the cylinder body 8 can utilize the rebounding force of self to return to original state, thereby has effectively reduced the vibrations that automobile is subjected in the process of moving.Volume is little except having in the present invention, the advantage of long service life, it also has highly versatile, promptly the user can feed the gas with certain pressure according to the weight of actual car body in cylinder body, thereby makes the present invention can adapt to different car body weight.
Claims (1)
1, a kind of inflation spring type shock absorber, it comprises that the cylinder body (8) of piston (13), damping spring (7), left end opening and an end are used for being connected with the fork truck support piston rod (9) that the other end is connected with piston (13); Described cylinder body (8) is enclosed within piston (13) and piston rod (9) outside; Described piston (13) is slidingly matched with cylinder body (8); The left end of described cylinder body (8) is connected with a cylinder head (3); Described piston rod (9) is slidingly matched with cylinder head (3); Described damping spring (7) be enclosed within on piston rod (9) body of rod and two end supports between piston (13) and cylinder head (3), it is characterized in that described cylinder body (8) is provided with a supplied gas near the sidewall of cylinder head (3) and enters the inner through hole (5) of cylinder body (8); Be connected with a tube-shaped joint (6) on the circumferential surface of described cylinder body (8); Described tube-shaped joint (6) is connected with through hole (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910096474A CN101532548A (en) | 2009-03-09 | 2009-03-09 | Inflation spring type shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910096474A CN101532548A (en) | 2009-03-09 | 2009-03-09 | Inflation spring type shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101532548A true CN101532548A (en) | 2009-09-16 |
Family
ID=41103330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910096474A Pending CN101532548A (en) | 2009-03-09 | 2009-03-09 | Inflation spring type shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101532548A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116355A (en) * | 2011-04-08 | 2011-07-06 | 南阳淅减汽车减振器有限公司 | Process method for inflating and sealing vibration damper |
-
2009
- 2009-03-09 CN CN200910096474A patent/CN101532548A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116355A (en) * | 2011-04-08 | 2011-07-06 | 南阳淅减汽车减振器有限公司 | Process method for inflating and sealing vibration damper |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090916 |