CN204900402U - Cushion formula hydro -cylinder about steady - Google Patents
Cushion formula hydro -cylinder about steady Download PDFInfo
- Publication number
- CN204900402U CN204900402U CN201520642506.2U CN201520642506U CN204900402U CN 204900402 U CN204900402 U CN 204900402U CN 201520642506 U CN201520642506 U CN 201520642506U CN 204900402 U CN204900402 U CN 204900402U
- Authority
- CN
- China
- Prior art keywords
- cushion collar
- cylinder
- piston
- piston rod
- utility
- 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
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 title abstract 2
- 230000003139 buffering effect Effects 0.000 claims abstract description 22
- 229910000906 Bronze Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000010974 bronze Substances 0.000 claims description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 7
- 239000000872 buffer Substances 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000006173 Good's buffer Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses a cushion formula hydro -cylinder about steady, include the cylinder body of constituteing by cylinder and cylinder bottom, arrange the piston rod and protrusion in the pole head of cylinder body one end at cylinder body middle part in, the inside uide bushing that is equipped with of cylinder front end, the piston is installed to the other end of piston rod, cushion collar under the piston is installed near one side of cylinder bottom, install the cushion collar at the opposite side of piston, the gasket that dams is installed through fixing bolt to the front end of cushion collar down, it all is cylindricly with lower cushion collar to go up the cushion collar, a plurality of dead slots have all been opened along length direction, be clearance fit with the piston rod. The utility model discloses simple structure installs cushion collar and lower cushion collar respectively in the both sides of piston, cushion more steadily, high -efficient, rises with falling speed evenly, and buffering effect is good.
Description
Technical field
The utility model relates to oil cylinder field, particularly relates to a kind of steadily upper and lower buffering type oil cylinder.
Background technique
Buffering type oil cylinder is mainly used in fork truck, this formula oil cylinder be piston will stroke to upper end and lower end will be retracted to time, change oil cylinder flow out oil mass, thus realize steadily cushion up and down.
At present, the buffer structure of fork truck oil cylinder is of a great variety, and application is also relatively more extensive, but the oil cylinder of most of buffer structure, be all an end band buffer structure, and lower buffering is in the majority, has the little of upper and lower buffer structure.Due to the restriction of structure and manufacturing condition, oil cylinder is moving in a period of time and bottom topmost, excessive or too small by the flow of buffer structure, causes oil cylinder not cushion or stuck phenomenon, affects the working efficiency of fork truck.
Therefore need badly and provide a kind of novel buffering type oil cylinder to solve the problems referred to above.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of steadily buffering type oil cylinder up and down, and structure is simple, stable buffering, hoist and rate of descent even.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: provide a kind of steadily upper and lower buffering type oil cylinder, comprise the cylinder body be made up of cylinder barrel and cylinder bottom, be placed in the piston rod in the middle part of cylinder body and protrude from the bar head of cylinder body one end, inside, cylinder barrel front end is provided with guide sleeve, the other end of piston rod is provided with piston, near the side of cylinder bottom, lower cushion collar is installed at piston, at the opposite side of piston, cushion collar is installed, the front end of lower cushion collar is provided with by fixing bolt the pad that dams, upper cushion collar and lower cushion collar are all in cylindric, all have some dead slots along its length, Spielpassung is with piston rod.
In the utility model preferred embodiment, one side angle of upper cushion collar and lower cushion collar is oblique angle, and the changes in flow rate of oil cylinder is slowly changed according to parabola, and the angular dimension at oblique angle is through strictly calculating and verify, buffering more steadily, efficiently, cushioning effect is also better.
In the utility model preferred embodiment, the material of upper cushion collar and lower cushion collar is aluminum bronze, and intensity is high, wear resistance good.
The beneficial effects of the utility model are: the utility model structure is simple, is separately installed with cushion collar and lower cushion collar in the both sides of piston, and buffering more steadily, efficiently, hoists even with rate of descent, good buffer effect.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of steady buffering type oil cylinder one preferred embodiment up and down of the utility model;
Fig. 2 is the plan view of described upper cushion collar;
Fig. 3 is the A-A sectional view of Fig. 2;
Fig. 4 is the plan view of described lower cushion collar;
Fig. 5 is the B-B sectional view of Fig. 4;
Fig. 6 to dam the plan view of pad described in being;
In accompanying drawing, the mark of each parts is as follows: 1, cylinder body, and 101, cylinder barrel, 102, cylinder bottom, 2, piston rod, 3, bar head, 4, piston, 5, upper cushion collar, 6, lower cushion collar, 7, dam pad, 8, fixing bolt, 9, guide sleeve, 10, dead slot.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection domain of the present utility model.
Refer to Fig. 1, the utility model is embodiment comprise:
A kind of steadily upper and lower buffering type oil cylinder, comprise be made up of cylinder barrel 101 and cylinder bottom 102 cylinder body 1, be placed in the piston rod 2 in the middle part of cylinder body 1 and protrude from the bar head 3 of cylinder body 1 one end, inside, cylinder barrel 101 front end is provided with guide sleeve 9, the other end of piston rod 2 is provided with piston 4, and piston 4 is connected by screw-thread fit with piston rod 2.To be provided with lower cushion collar 6 near the side of cylinder bottom 12 at piston 4, to be provided with cushion collar 5 at the opposite side of piston 4, the front end of lower cushion collar 6 is provided with the pad 7 that dams, and is fixed on piston rod 2 by fixing bolt 8.
Composition graphs 2 to Fig. 5, upper cushion collar 5 and lower cushion collar 6 all in cylindric, all have some dead slots 10 along its length, as shown in Figure 2 and Figure 4, upper cushion collar 5 and lower cushion collar 6 have four dead slots 10.Upper cushion collar 5 is oblique angle with a side angle of lower cushion collar 6, refers to Fig. 3 and Fig. 5, the changes in flow rate of oil cylinder is slowly changed according to parabola, and the angular dimension at oblique angle is through strictly calculating and verify, buffering more steadily, efficiently, cushioning effect is also better.Upper and lower cushion collar all adopts the aluminum bronze material of higher-strength and excellent abrasive resistance.Upper and lower cushion collar is arranged on piston 4, and by the step location on piston 4, the matching gap of upper and lower cushion collar and piston 4 is reasonable, also be Spielpassung with piston rod 2, therefore be floating on piston rod 2, ensure that cushion collar energy teaching display stand regulates, there will not be stuck phenomenon.In lower cushion collar 6 front end, the pad 7 (referring to Fig. 6) that dams is installed in addition, avoid lower cushion collar 6 in the process realizing buffering, the high pressure that fluid in lower cushion collar 6 and piston rod 2 gap is caused instantaneously by damming affect, cushioning effect is affected because producing impact, therefore damming pad 7 can the impact of buffering hydraulic, realizes steadily cushioning.
Specifically describe the working procedure of described steadily upper and lower buffering type oil cylinder below:
Oil cylinder is at the move under influence of load, upper cushion collar 5 is close on piston 4 under the effect of hydraulic coupling, and lower cushion collar 6 is close on the step of piston rod 2 under the effect of hydraulic coupling, when piston rod 2 stroke the top, upper cushion collar 5 enters in guide sleeve 9 gradually, and fluid slowly reduces.After upper cushion collar 5 enters guide sleeve 9, fluid is by the gap between guide sleeve 9 and upper cushion collar 5, and flowed out by four dead slots 10 on upper cushion collar 5, oil cylinder steadily rises to top lentamente.During oil cylinder retraction, lower cushion collar 6 slowly enters cylinder bottom hole, and the reduction due to gap causes the hydraulic shock power of moment very large, and the pad 7 that dams makes the fluid in lower cushion collar 6 and piston rod 2 gap steadily flow out, and realizes lower buffering.
The utility model structure is simple, is separately installed with cushion collar 5 and lower cushion collar 6 in the both sides of piston 4, and buffering more steadily, efficiently, hoists even with rate of descent, good buffer effect.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (3)
1. a steady buffering type oil cylinder up and down, comprise be made up of cylinder barrel and cylinder bottom cylinder body, be placed in the piston rod in the middle part of cylinder body and protrude from the bar head of cylinder body one end, inside, cylinder barrel front end is provided with guide sleeve, it is characterized in that, the other end of piston rod is provided with piston, lower cushion collar is installed near the side of cylinder bottom at piston, at the opposite side of piston, cushion collar is installed, the front end of lower cushion collar is provided with by fixing bolt the pad that dams, upper cushion collar and lower cushion collar all in cylindric, along its length all have some dead slots, with piston rod be Spielpassung.
2. steadily upper and lower buffering type oil cylinder according to claim 1, it is characterized in that, a side angle of upper cushion collar and lower cushion collar is oblique angle.
3. the steadily upper and lower buffering type oil cylinder according to any one of claim 1 or 2, it is characterized in that, the material of upper cushion collar and lower cushion collar is aluminum bronze.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520642506.2U CN204900402U (en) | 2015-08-21 | 2015-08-21 | Cushion formula hydro -cylinder about steady |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520642506.2U CN204900402U (en) | 2015-08-21 | 2015-08-21 | Cushion formula hydro -cylinder about steady |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204900402U true CN204900402U (en) | 2015-12-23 |
Family
ID=54922583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520642506.2U Expired - Fee Related CN204900402U (en) | 2015-08-21 | 2015-08-21 | Cushion formula hydro -cylinder about steady |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204900402U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134687A (en) * | 2015-08-21 | 2015-12-09 | 蚌埠液力机械有限公司 | Smooth upper-lower buffer type oil cylinder |
-
2015
- 2015-08-21 CN CN201520642506.2U patent/CN204900402U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134687A (en) * | 2015-08-21 | 2015-12-09 | 蚌埠液力机械有限公司 | Smooth upper-lower buffer type oil cylinder |
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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 |
Granted publication date: 20151223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |