CN206955582U - A kind of forklift lifting oil cylinder bottom buffer apparatus - Google Patents
A kind of forklift lifting oil cylinder bottom buffer apparatus Download PDFInfo
- Publication number
- CN206955582U CN206955582U CN201720826469.XU CN201720826469U CN206955582U CN 206955582 U CN206955582 U CN 206955582U CN 201720826469 U CN201720826469 U CN 201720826469U CN 206955582 U CN206955582 U CN 206955582U
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- CN
- China
- Prior art keywords
- cylinder bottom
- oil
- piston
- boss
- oil outlet
- 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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- Forklifts And Lifting Vehicles (AREA)
Abstract
The utility model discloses a kind of forklift lifting oil cylinder bottom buffer apparatus, piston including lift oil tank, in lift oil tank, oil outlet is provided with the middle part of lift oil tank cylinder bottom, piston is provided with boss, boss coordinates with oil outlet for gap, and the cylinder bottom and/or piston base are provided with groove, and the groove is when piston is bonded with cylinder bottom, directly connected with oil outlet, it is achieved thereby that the buffering course of rise and fall.A kind of forklift lifting oil cylinder bottom buffer apparatus of the present utility model, have the advantages that cost is cheap, simple in construction, safe and reliable.
Description
Technical field
A kind of fork truck lifting oil cylinder is the utility model is related to, is exactly a kind of forklift lifting oil cylinder bottom buffering dress
Put.
Background technology
In the prior art, forklift lifting oil cylinder bottom buffer apparatus, goods impact larger, produce obvious cylinder bottom when declining
Impact noise, potential safety hazard be present, fork truck job stability is also easily influenceed, in view of this, in patent CN03220124.9
Disclose a kind of forklift lifting oil cylinder bottom buffer apparatus, the device installed in the oilhole in the middle part of lift oil tank cylinder bottom valve element,
The buffer unit of valve pocket, spring and valve seat, by setting multiple throttle orifices, realize the reduction of fuel-displaced speed, and then cylinder bottom
The purpose of buffering, but it there is also following shortcoming, structure is complex, and cost is higher, while in oil cylinder ascent stage without buffering
Effect.
The content of the invention
The utility model aims to solve the problem that above-mentioned mentioned technical problem, there is provided a kind of cost is cheap, simple in construction, work
Safe and reliable forklift lifting oil cylinder bottom buffer apparatus.
Technical solutions of the utility model are as follows：
A kind of forklift lifting oil cylinder bottom buffer apparatus, including lift oil tank, the piston in lift oil tank, it is special
Sign is, oil outlet is provided with the cylinder bottom of lift oil tank, and the piston base is provided with boss, and boss is matched somebody with somebody with fuel-displaced interporal lacuna
Close, cylinder bottom and/or piston base are provided with and oil outlet communication groove.
Preferably, the breeze way with taper is provided with the oil outlet.
Preferably, the breeze way with taper is provided with the boss.
Preferably, the groove is in a ring.
Preferably, the boss is cylindrical.
Preferably, the oil outlet is arranged in the middle part of cylinder bottom.
Beneficial effect is：
Compared with prior art, a kind of forklift lifting oil cylinder bottom buffer apparatus of the present utility model is by setting groove,
So that lift oil tank rise when hydraulic oil along oil outlet pass back into cylinder bottom when piston lifting surface area it is sufficiently large, and then cause rise
Reliable in action is realized, and by setting boss in piston base, boss coordinates with fuel-displaced interporal lacuna so that the oil-out of oil outlet
Footpath reduce, oil inlet quantity is relatively low, jack up piston when it is slow, play cushioning effect；Simultaneously by setting boss in piston base so that
When lift oil tank declines, boss coordinates with fuel-displaced interporal lacuna, and the fuel-displaced bore of oil outlet diminishes, so as to reduce oil pump capacity, entered
And piston is slowly acted, play cushioning effect.
Brief description of the drawings
Specific embodiment of the present utility model is described in further detail below in conjunction with accompanying drawing, wherein：
Fig. 1 is the cross section view of lift oil tank cylinder bottom buffer unit；
Fig. 2 is the cross section view of the first embodiment of lift oil tank cylinder bottom buffer unit；
Fig. 3 is the cross section view of second of embodiment of lift oil tank cylinder bottom buffer unit.
Embodiment
As shown in figure 1, a kind of buffer unit of forklift lifting oil cylinder bottom 1, including lift oil tank, in lift oil tank
Piston 2, be provided with oil outlet 3 at the middle part of cylinder bottom 1 of lift oil tank to ensure that center stressed is uniform, it is corresponding in the lower end of piston 2
The position of oil outlet 3 is provided with boss 5, and boss 5 can be that cylinder is processed with facilitating, and boss 5 is that gap coordinates with oil outlet 3,
Ensure that hydraulic oil can pass through oil outlet 3 by gap, and it is low when the amount now passed in and out is relative to normal operation, realize effectively to enter
Hydraulic fluid port footpath diminishes, and reduces oil pump capacity, realizes pooling feature；Groove 4, groove are provided with the end face that cylinder bottom 1 coordinates with piston 2
4 can be annular and directly connected with oil outlet 3, it is ensured that when piston 2 is bonded with cylinder bottom 1, hydraulic oil can along oil outlet 3 with it is convex
The gap of platform 5 enters in groove 4, increases the lifting surface area of piston 2 so that piston 2 realizes that reliable and stable buffering rises.
As shown in Fig. 2 the cylinder bottom 1 is provided with oil outlet 3 and sets fluted 4, groove 4 connects with oil outlet 3, piston
2 bottoms set boss 5, have taper breeze way 5a on boss 5, when fork truck lifting oil cylinder declines, piston 2 declines, and boss 5 is under
Drop, when boss 5 moves closer to the oil outlet 3 of cylinder bottom 1, effective fuel-displaced bore of oil outlet 3 diminishes, taper breeze way 5a's
Under effect, effective fuel-displaced bore of oil outlet 3 is gradually reduced, and avoids the interim card that fuel-displaced bore suddenly change is brought, steady drop
Low oil pump capacity so that the speed of piston 2 steadily reduces, and realizes fork truck lifting oil cylinder buffer falling process；The mistake that fork truck buffering rises
Journey is the same as lower reason.
As shown in figure 3, the cylinder bottom 1 is plane and is provided with oil outlet 3, infundibulate breeze way 3a is set on oil outlet 3,
Groove 4 is provided with the bottom of piston 2, groove 4 connects with oil outlet 3 when piston 2 is bonded with cylinder bottom 1, and hydraulic oil can be along going out
Gap between oilhole 3 and boss 5 flows into groove 4；In fork truck lifting oil cylinder uphill process, the oil-feed of oil cylinder bottom 1, hydraulic oil along
Gap between oil outlet 3 and boss 5 flows into the groove 4 of cylinder bottom 1, and groove 4 can ensure that lifting surface area is sufficiently large, and then to rise and move
Make reliable realization, because of the limitation of boss 5, the effectively fuel-displaced bore of fuel feed hole 3 is small, and oil inlet quantity is low, and hydraulic oil jacks up the speed of piston 2
Relatively low, boss 5 rises with piston 2, and infundibulate breeze way 3a causes effective fuel-displaced bore of oil outlet 3 gradually to increase
Greatly, so as to steadily increase oil pump capacity, the movement velocity of piston 2 is slowly lifted, and avoids the interim card that speed suddenly change is brought so that
Piston 2 be not easy it is stuck stable and reliable in work, and then realize fork truck lifting oil cylinder buffer uphill process；The process of fork truck buffer falling
Ibid manage.
Above example is only not limited to illustrate the technical solution of the utility model, all without departing from this
Any modification of utility model spirit and scope or equivalent substitution, it all should cover the scope in technical solutions of the utility model
It is interior.
Claims (6)
1. a kind of forklift lifting oil cylinder bottom buffer apparatus, including lift oil tank, the piston (2) in lift oil tank, its
It is characterised by, oil outlet (3) is provided with the cylinder bottom (1) of the lift oil tank, and piston (2) bottom is provided with boss (5),
Boss (5) coordinates with oil outlet (3) gap, and the cylinder bottom (1) and/or piston (2) bottom are provided with what is connected with oil outlet (3)
Groove (4).
A kind of 2. forklift lifting oil cylinder bottom buffer apparatus according to claim 1, it is characterised in that the oil outlet
(3) infundibulate breeze way (3a) is provided with.
A kind of 3. forklift lifting oil cylinder bottom buffer apparatus according to claim 1, it is characterised in that the boss (5)
On be provided with taper breeze way (5a).
A kind of 4. forklift lifting oil cylinder bottom buffer apparatus according to claim 1, it is characterised in that the groove (4)
In a ring.
5. a kind of forklift lifting oil cylinder bottom buffer apparatus according to any one of claims 1 to 3, it is characterised in that described
Boss (5) is cylinder.
6. a kind of forklift lifting oil cylinder bottom buffer apparatus according to any one of claims 1 to 3, it is characterised in that described
Oil outlet (3) is arranged in the middle part of cylinder bottom (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720826469.XU CN206955582U (en) | 2017-07-07 | 2017-07-07 | A kind of forklift lifting oil cylinder bottom buffer apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720826469.XU CN206955582U (en) | 2017-07-07 | 2017-07-07 | A kind of forklift lifting oil cylinder bottom buffer apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206955582U true CN206955582U (en) | 2018-02-02 |
Family
ID=61384252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720826469.XU Expired - Fee Related CN206955582U (en) | 2017-07-07 | 2017-07-07 | A kind of forklift lifting oil cylinder bottom buffer apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206955582U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108317124A (en) * | 2018-03-11 | 2018-07-24 | 华东交通大学 | A kind of novel high-voltage circuit-breaker hydraulic working cylinder with combined buffer plunger |
-
2017
- 2017-07-07 CN CN201720826469.XU patent/CN206955582U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108317124A (en) * | 2018-03-11 | 2018-07-24 | 华东交通大学 | A kind of novel high-voltage circuit-breaker hydraulic working cylinder with combined buffer plunger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180202 |