CN103993625A - Three-oil cylinder movable arm working device of hydraulic excavator - Google Patents
Three-oil cylinder movable arm working device of hydraulic excavator Download PDFInfo
- Publication number
- CN103993625A CN103993625A CN201410251192.3A CN201410251192A CN103993625A CN 103993625 A CN103993625 A CN 103993625A CN 201410251192 A CN201410251192 A CN 201410251192A CN 103993625 A CN103993625 A CN 103993625A
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- Prior art keywords
- swing arm
- movable arm
- oil cylinder
- cylinder
- accumulation
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2217—Hydraulic or pneumatic drives with energy recovery arrangements, e.g. using accumulators, flywheels
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/006—Pivot joint assemblies
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Operation Control Of Excavators (AREA)
Abstract
The invention discloses a three-oil cylinder movable arm working device of a hydraulic excavator. The three-oil cylinder movable arm working device of the hydraulic excavator comprises a movable arm which is hinged to an upper frame through a movable arm hinge pin and a power device which is connected between the movable arm and the upper frame and enables the movable arm to ascend and descend in a rotary mode. The power device comprises a movable arm oil cylinder which is connected with a main valve of the excavator, and the power device further comprises two movable arm energy storage oil cylinders. According to the three-oil cylinder movable arm working device of the hydraulic excavator, on the basis of two movable arm oil cylinders of a traditional hydraulic excavator, one movable arm oil cylinder is additionally arranged, so that the three-oil cylinder movable arm working device which is composed of the two movable arm energy storage oil cylinders and the movable arm oil cylinder is formed, the movable arm energy storage oil cylinders on the two sides can have the function of lifting the movable arm when the movable arm ascends, the function of storing the movable arm potential energy to an energy accumulator is added when the movable arm descends, the middle movable arm oil cylinder can achieve a limiting function when the working device does not make movement, and the auxiliary movable arm lifting function can be achieved when the movable arm ascends.
Description
Technical field
The present invention relates to excavator, specifically a kind of hydraulic crawler excavator three oil cylinder swing arm equipments.
Background technology
At present, the motor-driven arm equipment of keeping away of excavation in market generally adopts 1 boom cylinder (mini-excavator) or 2 boom cylinders (big-and-middle-sized excavator) structure, the feature of this swing arm equipment is that response speed is slow, the operating time is long, the power that swing arm is carried when stretching or declining is less, working effect is relatively slow, therefore invents the swing arm equipment that a kind of oil consumption is low, the response time is fast necessary.
Notice of authorization CN202391827U, the Patent Application Publication of notice of authorization day 2012.08.22 a kind of jacking system of the boom for Work machine, comprise: for storing the gravitional force of boom and utilize the energy storage equipment of stored energy lifting boom when boom declines when boom rising, this energy storage equipment comprises accumulation of energy oil cylinder and accumulator, accumulation of energy oil cylinder has accumulation of energy cylinder upper cavity oil and the accumulation of energy oil cylinder cavity of resorption being separated by energy storage piston, and the energy storage piston bar being connected with boom operation, upper space in accumulator has been filled with the body of calming the anger, lower space has been filled with hydraulic fluid force feed and has been communicated with accumulation of energy oil cylinder cavity of resorption fluid, for controlling the control oil cylinder of boom lifting, control oil cylinder and there is the control cylinder upper cavity oil being separated by control piston and control oil cylinder cavity of resorption, and the control piston bar being connected with boom operation, for having the hydraulic pump of hydraulic fluid force feed to controlling cylinder upper cavity oil or the supply of control oil cylinder cavity of resorption selectively by distributor, when hydraulic pump has hydraulic fluid force feed by distributor to the supply of control cylinder upper cavity oil, control piston bar drives boom to decline, the energy storage piston bar of the weight pushing accumulation of energy oil cylinder of boom, the hydraulic oil of accumulation of energy oil cylinder cavity of resorption is pushed in accumulator lower space, and the gas in compress energy storage device upper space is to reclaim the gravitional force of boom thus, when hydraulic pump has hydraulic fluid force feed by distributor to the supply of control oil cylinder cavity of resorption, control piston bar drives boom to rise, energy storage piston bar is raised, thereby the Compressed Gas in accumulator upper space pushes accumulation of energy oil cylinder cavity of resorption by the hydraulic oil in accumulator lower space, discharge thus the energy reclaim and promote energy storage piston bar and upwards rise boom.But above-mentioned jacking system, when operation, is also short of to some extent at lifting speed, lifting force.
Summary of the invention
The object of the present invention is to provide a kind of hydraulic crawler excavator three oil cylinder swing arm equipments, can improve the lifting speed of excavator swing arm, strengthen the lifting force of swing arm, shorten the operating time, improve the operating efficiency of excavator swing arm.
In order to reach above-mentioned purpose, the present invention has adopted following technical scheme, a kind of hydraulic crawler excavator three oil cylinder swing arm equipments, comprise by swing arm bearing pin be hinged on the swing arm on upper vehicle frame and be connected to swing arm and upper vehicle frame between the power set that can make the rotary rise and fall of swing arm, these power set comprise boom cylinder, boom cylinder is connected with the main valve of excavator, described power set also comprise two swing arm accumulation of energy oil cylinders, described boom cylinder upper end is hinged on the horizontal boom cylinder bearing pin of swing arm, lower end is hinged on the horizontal upper vehicle frame bearing pin of vehicle frame, described two swing arm accumulation of energy oil cylinder symmetrical expressions are positioned at boom cylinder both sides, same upper end is hinged on boom cylinder bearing pin, lower end is hinged on vehicle frame bearing pin, described boom cylinder is for just putting mounting means, cylinder body under, piston rod is upper, described swing arm accumulation of energy oil cylinder is for being inverted mounting means, cylinder body is upper, piston rod under.
Described swing arm accumulation of energy oil cylinder comprises cylinder body and the piston rod being connected, and piston rod front end is connected with the piston in cylinder body, in cylinder body, by piston, is divided into large chamber and loculus, and described large chamber is connected to accumulator by pipeline, and loculus is connected with the main valve of excavator.
Described boom cylinder upper end is positioned at swing arm inside, and described swing arm accumulation of energy oil cylinder upper end is positioned at swing arm outside.
Compared to prior art, the present invention has following beneficial effect:
On the basis of conventional hydraulic excavator two boom cylinders, a newly-increased boom cylinder, formation is by two swing arm accumulation of energy oil cylinders, the three oil cylinder swing arm equipments that boom cylinder forms, the swing arm accumulation of energy oil cylinder of both sides is carried out the function of lifting swing arm when swing arm rises, when swing arm declines, increase the function that stores movable arm potential energy energy to accumulator newly, middle boom cylinder is when equipment is failure to actuate, play position-limiting action, when swing arm rises, realize auxiliary function of lifting swing arm.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of hydraulic crawler excavator three oil cylinder swing arm equipments of the present invention.
In figure: 1, swing arm; 2, boom cylinder bearing pin; 3, swing arm accumulation of energy oil cylinder; 4, boom cylinder; 5, upper vehicle frame bearing pin; 6, swing arm bearing pin; 7, upper vehicle frame.
The specific embodiment
Relevant detailed description of the present invention and technology contents, coordinate accompanying drawing to be described as follows, yet accompanying drawing only provides the use of reference with explanation, is not used for the present invention to be limited.
With reference to accompanying drawing 1, a kind of hydraulic crawler excavator three oil cylinder swing arm equipments, comprise by swing arm bearing pin 6 be hinged on the swing arm 1 on upper vehicle frame 7 and be connected to swing arm and upper vehicle frame between the power set that can make the rotary rise and fall of swing arm, these power set comprise boom cylinder 4, boom cylinder is connected with the main valve of excavator, described power set also comprise two swing arm accumulation of energy oil cylinders 3, described boom cylinder upper end is hinged on the horizontal boom cylinder bearing pin 2 of swing arm, lower end is hinged on the horizontal upper vehicle frame bearing pin 5 of vehicle frame, described two swing arm accumulation of energy oil cylinder symmetrical expressions are positioned at boom cylinder both sides, same upper end is hinged on boom cylinder bearing pin, lower end is hinged on vehicle frame bearing pin.Described swing arm accumulation of energy oil cylinder comprises cylinder body and the piston rod being connected, and piston rod front end is connected with the piston in cylinder body, in cylinder body, by piston, is divided into large chamber and loculus, and described large chamber is connected to accumulator by pipeline, and loculus is connected with the main valve of excavator.Described boom cylinder upper end is positioned at swing arm inside, and described swing arm accumulation of energy oil cylinder upper end is positioned at swing arm outside.Described boom cylinder is for just putting mounting means, cylinder body under, piston rod is upper, described swing arm accumulation of energy oil cylinder is for being inverted mounting means, cylinder body is upper, piston rod under.
The large chamber of swing arm accumulation of energy oil cylinder 3 connects with accumulator, and loculus connects with main valve; Boom cylinder 4 connects with the main valve of excavator.
When excavator is worked, operating grip is pushed into swing arm lifting position, now the common excavator of oil pump consumption of engine power ratio is low by 2/3, the large chamber of boom cylinder 4 in the middle of hydraulic oil enters into through plunger displacement pump, main valve, the oil gas that has been forced into the accumulator under authorized pressure numerical value enters the large chamber of the swing arm accumulation of energy oil cylinder 3 of both sides simultaneously, the piston rod of pusher arm oil cylinder 4 and 2 swing arm accumulation of energy oil cylinders 3 stretches out respectively, and swing arm 1 turns clockwise around swing arm bearing pin 6, and swing arm 1 rises.
When operating grip being pushed into swing arm down position, now hydraulic oil enters into the loculus of 2 swing arm accumulation of energy oil cylinders 3 of middle boom cylinder 4 and both sides through plunger displacement pump, main valve, hydraulic oil promotes oil cylinder piston and retracts, and swing arm 1 is rotated counterclockwise around swing arm bearing pin 6, and swing arm 1 declines.When swing arm declines, boom cylinder 4 hydraulic oil are back to fuel tank by main valve, and swing arm accumulation of energy oil cylinder 3 large chamber hydraulic oil are directly back to accumulator by oil pipe, and energy storage completes.Circulation successively.The swing arm accumulation of energy oil cylinder of both sides is carried out the function of lifting swing arm when swing arm rises, when swing arm declines, increase the function that stores movable arm potential energy energy to accumulator newly, middle boom cylinder is when equipment is failure to actuate, play position-limiting action, when swing arm rises, realize auxiliary function of lifting swing arm.By swing arm accumulation of energy oil cylinder, for being inverted mounting means, obtained than the better lifting speed of background technology and lifting force.
The foregoing is only preferred embodiment of the present invention, non-in order to limit the scope of the claims of the present invention, other use the equivalence of patent spirit of the present invention to change, and all should all belong to the scope of the claims of the present invention.
Claims (3)
1. hydraulic crawler excavator three oil cylinder swing arm equipments, comprise by swing arm bearing pin be hinged on the swing arm on upper vehicle frame and be connected to swing arm and upper vehicle frame between the power set that can make the rotary rise and fall of swing arm, these power set comprise boom cylinder, boom cylinder is connected with the main valve of excavator, it is characterized in that, described power set also comprise two swing arm accumulation of energy oil cylinders, described boom cylinder upper end is hinged on the horizontal boom cylinder bearing pin of swing arm, lower end is hinged on the horizontal upper vehicle frame bearing pin of vehicle frame, described two swing arm accumulation of energy oil cylinder symmetrical expressions are positioned at boom cylinder both sides, same upper end is hinged on boom cylinder bearing pin, lower end is hinged on vehicle frame bearing pin, described boom cylinder is for just putting mounting means, be cylinder body under, piston rod is upper, described swing arm accumulation of energy oil cylinder is for being inverted mounting means, be that cylinder body is upper, piston rod under.
2. a kind of hydraulic crawler excavator three oil cylinder swing arm equipments according to claim 1, it is characterized in that, described swing arm accumulation of energy oil cylinder comprises cylinder body and the piston rod being connected, piston rod front end is connected with the piston in cylinder body, in cylinder body, by piston, be divided into large chamber and loculus, described large chamber is connected to accumulator by pipeline, and loculus is connected with the main valve of excavator.
3. a kind of hydraulic crawler excavator three oil cylinder swing arm equipments according to claim 1, is characterized in that, described boom cylinder upper end is positioned at swing arm inside, and described swing arm accumulation of energy oil cylinder upper end is positioned at swing arm outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410251192.3A CN103993625A (en) | 2014-06-06 | 2014-06-06 | Three-oil cylinder movable arm working device of hydraulic excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410251192.3A CN103993625A (en) | 2014-06-06 | 2014-06-06 | Three-oil cylinder movable arm working device of hydraulic excavator |
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| CN103993625A true CN103993625A (en) | 2014-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410251192.3A Pending CN103993625A (en) | 2014-06-06 | 2014-06-06 | Three-oil cylinder movable arm working device of hydraulic excavator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431241A (en) * | 2019-08-26 | 2021-03-02 | 广西柳工机械股份有限公司 | Electric digging machine |
| CN113152574A (en) * | 2021-04-26 | 2021-07-23 | 徐州纳维尔机械制造有限公司 | Excavator movable arm energy-saving device based on sliding pair and gas energy storage and working method |
| CN113417633A (en) * | 2021-08-24 | 2021-09-21 | 三一重型装备有限公司 | Mining apparatus |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2378907A1 (en) * | 1977-02-01 | 1978-08-25 | Haslberger Josef | Excavator with long reach ditching boom - has supplementary counterweight with suspended mass which is elevated as boom extends |
| DE202008016115U1 (en) * | 2008-12-04 | 2009-03-05 | Ahlmann Baumaschinen Gmbh | earthmoving |
| WO2011132673A1 (en) * | 2010-04-20 | 2011-10-27 | 住友重機械工業株式会社 | Construction machine |
| CN202391827U (en) * | 2011-12-12 | 2012-08-22 | 杨双来 | Lifting system for erector arm of working machine and working machine |
| CN102691682A (en) * | 2011-03-21 | 2012-09-26 | 杨双来 | Method and device for potential energy recovery and storage by utilizing deadweight of crane jib |
| CN203924196U (en) * | 2014-06-06 | 2014-11-05 | 山东中川液压有限公司 | Hydraulic crawler excavator three oil cylinder swing arm equipments |
-
2014
- 2014-06-06 CN CN201410251192.3A patent/CN103993625A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2378907A1 (en) * | 1977-02-01 | 1978-08-25 | Haslberger Josef | Excavator with long reach ditching boom - has supplementary counterweight with suspended mass which is elevated as boom extends |
| DE202008016115U1 (en) * | 2008-12-04 | 2009-03-05 | Ahlmann Baumaschinen Gmbh | earthmoving |
| WO2011132673A1 (en) * | 2010-04-20 | 2011-10-27 | 住友重機械工業株式会社 | Construction machine |
| CN102691682A (en) * | 2011-03-21 | 2012-09-26 | 杨双来 | Method and device for potential energy recovery and storage by utilizing deadweight of crane jib |
| CN202391827U (en) * | 2011-12-12 | 2012-08-22 | 杨双来 | Lifting system for erector arm of working machine and working machine |
| CN203924196U (en) * | 2014-06-06 | 2014-11-05 | 山东中川液压有限公司 | Hydraulic crawler excavator three oil cylinder swing arm equipments |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431241A (en) * | 2019-08-26 | 2021-03-02 | 广西柳工机械股份有限公司 | Electric digging machine |
| CN113152574A (en) * | 2021-04-26 | 2021-07-23 | 徐州纳维尔机械制造有限公司 | Excavator movable arm energy-saving device based on sliding pair and gas energy storage and working method |
| CN113152574B (en) * | 2021-04-26 | 2022-07-26 | 徐州纳维尔机械制造有限公司 | Excavator movable arm energy-saving device based on sliding pair and gas energy storage and working method |
| CN113417633A (en) * | 2021-08-24 | 2021-09-21 | 三一重型装备有限公司 | Mining apparatus |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140820 |
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| RJ01 | Rejection of invention patent application after publication |