CN201245853Y - Large arm oil cylinder of digging loader - Google Patents
Large arm oil cylinder of digging loader Download PDFInfo
- Publication number
- CN201245853Y CN201245853Y CNU2008201720353U CN200820172035U CN201245853Y CN 201245853 Y CN201245853 Y CN 201245853Y CN U2008201720353 U CNU2008201720353 U CN U2008201720353U CN 200820172035 U CN200820172035 U CN 200820172035U CN 201245853 Y CN201245853 Y CN 201245853Y
- Authority
- CN
- China
- Prior art keywords
- cylindrical hole
- buffer bar
- cylinder
- cylinder bottom
- large arm
- 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
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a large arm cylinder of a loader digger, which is characterized in that a cylindrical hole is formed at the piston end of a piston rod; a floating buffer bar is arranged in the cylindrical hole; a cylindrical hole is formed in the center part at one end of the floating buffer bar; a plurality of small cylindrical holes are formed on the side wall of the cylindrical hole; a cylindrical hole corresponding to the floating buffer bar is formed on the center part of the cylinder bottom; and the cylindrical hole on the center part of the cylinder bottom is communicated with an oil pipe on the cylinder bottom. The novel large arm cylinder adopts the floating buffer bar and two oil paths are set up in the buffer bar, so as to provide a brand new method for hydraulic cylinder buffer. The large arm cylinder has the advantages of compact and simple structure, and easy processing and maintenance.
Description
Technical field
The utility model relates to middle and high compressing cylinder, is specifically related to the big arm oil cylinder of loader-digger.
Background technology
Excavate the afterbody of part at car load at present loader-digger, the big arm oil cylinder of excavator is installed in the upper end of single armed, links to each other with car body, when piston rod retracts to least significant end fast, because effect of inertia can produce very big impact force to cylinder bottom, make the car body chatter, influence the operate as normal of car load.
Summary of the invention
The utility model is at present actual conditions, designed and developed out the oil cylinder that the rodless cavity end has pooling feature, can reduce to minimum to excessive speed and spike hydraulic pressure, realizes even the deceleration by setting up constant compression force between deceleration period.
The utility model is achieved through the following technical solutions: the big arm oil cylinder of a kind of loader-digger, mainly form by piston rod, fairlead, piston, cylinder bottom, it is characterized in that, at piston rod piston end is housed and is provided with a cylindrical hole, in cylindrical hole, be provided with a unsteady buffer bar, end centre at the buffer bar that floats is provided with a cylindrical hole, on the sidewall of cylindrical hole, also be provided with a plurality of small cylindrical hole, also be provided with in the centre of cylinder bottom one with the corresponding cylindrical hole of unsteady buffer bar, this cylindrical hole connects by oil duct and the oil pipe that is located on the cylinder bottom.When piston rod ran to end, unsteady buffer bar entered cylinder bottom, and with the working connection sealing, oil can only reduce recirculating oil quantity, thereby reach buffering effect gradually from the side small cylindrical hole oil return of buffer bar, underspeeds gently.
This novel oil cylinder adopts the buffer bar that floats, and two oil circuits are set up in buffer bar inside, is the completely new approach in the hydraulic cylinder buffering, and compact conformation, simple is easy to processing, for ease of maintenaince.
Description of drawings
Now the utility model is described in further detail in conjunction with the accompanying drawings
Fig. 1 is the utility model master sectional view
Fig. 2 is the utility model vertical view
Fig. 3 is a B part enlarged drawing
Among the figure 1, piston rod 2, fairlead 3, cylinder barrel 4, piston 5, buffer bar 6, cylinder bottom 7, oil pipe 8, oil pipe float
The specific embodiment
As shown in Figure 1, 2, 3, the utility model is the big arm oil cylinder of a kind of loader-digger, mainly comprises piston rod 1, fairlead 2, cylinder barrel 3, piston 4, unsteady buffer bar 5, cylinder bottom 6.At piston rod 1 piston 4 ends are housed and are provided with a cylindrical hole, in cylindrical hole, be provided with a unsteady buffer bar 5, end centre at the buffer bar 5 that floats is provided with a cylindrical hole, on the sidewall of cylindrical hole, also be provided with a plurality of small cylindrical hole, also be provided with in the centre of cylinder bottom 6 one with unsteady buffer bar 5 corresponding cylindrical holes, this cylindrical hole connects by oil duct and the oil pipe 8 that is located on the cylinder bottom 6.
The utility model course of work is as follows: big arm oil cylinder cylinder bottom 6 place's axis holes link to each other with car body by bearing pin, piston rod 1 is connected with single armed by bearing pin, when piston rod 1 ecto-entad retracts to end, the buffer bar 5 that floats this moment enters in cylinder bottom 6 spill ports, working connection is sealed, force the side small cylindrical hole oil return of oil from buffer bar 5, minimizing along with the small cylindrical hole number, recirculating oil quantity is reduced gradually, reach the effect of throttling, the speed of retraction is reduced, thereby make not chatter of car body, improve car load application life.
Claims (1)
1, the big arm oil cylinder of a kind of loader-digger, mainly form by piston rod, fairlead, piston, cylinder bottom, it is characterized in that: at piston rod piston end is housed and is provided with a cylindrical hole, in cylindrical hole, be provided with a unsteady buffer bar, end centre at the buffer bar that floats is provided with a cylindrical hole, on the sidewall of cylindrical hole, also be provided with a plurality of small cylindrical hole, also be provided with in the centre of cylinder bottom one with the corresponding cylindrical hole of unsteady buffer bar, this cylindrical hole connects by oil duct and the oil pipe that is located on the cylinder bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201720353U CN201245853Y (en) | 2008-09-26 | 2008-09-26 | Large arm oil cylinder of digging loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201720353U CN201245853Y (en) | 2008-09-26 | 2008-09-26 | Large arm oil cylinder of digging loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201245853Y true CN201245853Y (en) | 2009-05-27 |
Family
ID=40729673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201720353U Expired - Fee Related CN201245853Y (en) | 2008-09-26 | 2008-09-26 | Large arm oil cylinder of digging loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201245853Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776104A (en) * | 2010-03-04 | 2010-07-14 | 合肥市力恒科技有限责任公司 | Single-acting plunger type buffering hydraulic oil cylinder |
| CN101776105A (en) * | 2010-03-04 | 2010-07-14 | 合肥市力恒科技有限责任公司 | Single-acting piston type buffering hydraulic oil cylinder |
-
2008
- 2008-09-26 CN CNU2008201720353U patent/CN201245853Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776104A (en) * | 2010-03-04 | 2010-07-14 | 合肥市力恒科技有限责任公司 | Single-acting plunger type buffering hydraulic oil cylinder |
| CN101776105A (en) * | 2010-03-04 | 2010-07-14 | 合肥市力恒科技有限责任公司 | Single-acting piston type buffering hydraulic oil cylinder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101382042B (en) | Ocean floating drill platform string heave compensation device | |
| CN201330768Y (en) | Floating type cushioning device for hydraulic cylinder | |
| CN201489118U (en) | Cylinder type vibroseis vibrator | |
| CN113374757A (en) | Mining equipment hydraulic cylinder with protection device | |
| CN201245853Y (en) | Large arm oil cylinder of digging loader | |
| CN102678813B (en) | Buffer unit and boom rearward tilting prevention device provided with buffer unit | |
| CN102367818A (en) | Special integrated group valve for electrohydraulic push rod | |
| CN205154067U (en) | A overhead traveling crane compensation arrangement for reducing gas pitcher pressure oscillation | |
| CN200971889Y (en) | Hydraulic gas pressure cylinder, with float buffer ring | |
| CN102304931B (en) | Hydraulic energy-saving control system and method for loader movable arm | |
| CN201535282U (en) | Double-tapping large-travel oil cylinder | |
| CN102678663B (en) | Oil cylinder for excavator and excavator with cylinder | |
| CN201232677Y (en) | Small arm oil cylinder for digging machine | |
| CN202301249U (en) | Electro-hydraulic push rod-dedicated integrated valve bank | |
| CN204112393U (en) | A kind of dredger scraper bowl | |
| RU2405893C1 (en) | Energy-efficient working equipment of boom single-bucket machine | |
| CN201296938Y (en) | Large arm oil cylinder of excavator | |
| CN200949580Y (en) | Hydraulic oil cylinder guide sleeve cushioning device | |
| CN203257800U (en) | Elastic rubber belt type excavator bucket rod gravitational potential energy recovery regeneration device | |
| CN204372229U (en) | A kind of fluid regeneration valve | |
| CN203257801U (en) | Tension spring energy storage oil cylinder type excavator bucket rod gravitational potential energy recovery regeneration device | |
| CN205078530U (en) | A hydraulic pressure oil circuit that is used for flat board to turn over mould machine safe being equipped with pressing | |
| CN201396334Y (en) | Jacking hydro cylinder of tower crane | |
| CN202768518U (en) | Combination type hydraulic cylinder with floating cylinder barrels | |
| CN201297303Y (en) | Oscillating oil cylinder of backhoe loader |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090527 Termination date: 20110926 |