CN202391827U - Lifting system for erector arm of working machine and working machine - Google Patents
Lifting system for erector arm of working machine and working machine Download PDFInfo
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- CN202391827U CN202391827U CN2011205519007U CN201120551900U CN202391827U CN 202391827 U CN202391827 U CN 202391827U CN 2011205519007 U CN2011205519007 U CN 2011205519007U CN 201120551900 U CN201120551900 U CN 201120551900U CN 202391827 U CN202391827 U CN 202391827U
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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
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Abstract
The utility model relates to a lifting system for an erector arm of a working machine and the working machine. The system comprises an energy storage device, a control oil cylinder and a hydraulic pump. The energy storage device is provided with an energy storage oil cylinder and an energy storage; the energy storage oil cylinder is provided with upper and lower cavities and an energy storage piston rod which is connected with the erector arm; the upper part of the energy storage is filled with gas, and the lower part of the energy storage is filled with hydraulic oil and is communicated with the lower cavity of the energy storage oil cylinder. The control oil cylinder controls the lifting of the erector arm, and is provided with upper and lower cavities and a control piston rod which is connected with the erector arm; when the hydraulic pump supplies oil to the upper cavity of the control oil cylinder through a distributor, the control piston rod descends the erector arm, the weight of the erector arm pushes and presses the energy storage piston rod to push the hydraulic oil in the lower cavity of the control oil cylinder into the lower part of the energy storage, so that the gas at the upper part of the energy storage is pressed to recover potential energy; when the hydraulic pump supplies the oil to the lower cavity of the control oil cylinder through the distributor, the control piston rod ascends the erector arm so as to lift the energy storage piston rod, and compressed gas at the upper part of the energy storage pushes the hydraulic oil at the lower part of the energy storage into the lower cavity of the energy storage cylinder, so that the recovered potential energy is released to push the energy storage piston rod to lift the erector arm.
Description
Technical field
The utility model relates to a kind of elevating system and the Work machine that comprises this system that is used for the shear leg of Work machine.
Background technique
Work machines such as excavator, loader, crane utilize the rising of shear leg and descend carries out operation; But; For existing shear leg elevating system; Because the weight of shear leg is often very big, thus when upgrading weighing arm, need the power system of Work machine that very big power is provided and expend a lot of energy, and the speed that shear leg promotes is slower; And when shear leg descended, its gravitational potential energy was usually lost again, can not get effective utilization.Can when shear leg descends, reclaim the system of its gravitational potential energy though developed some, these system architectures are complicated, operation inconvenience, and can not discharge the energy that is reclaimed effectively and make the shear leg fast lifting.
The model utility content
The utility model is intended to solve the aforementioned problems in the prior, promptly provide a kind of simple in structure, easy and simple to handle, save energy, the shear leg elevating system of the gravitational potential energy fast lifting shear leg in the time of can reclaiming and utilize shear leg to descend effectively.
On the one hand; The utility model provides a kind of elevating system that is used for the shear leg of Work machine; Comprise: the energy storage apparatus that is used for when shear leg descends, storing the gravitational potential energy of shear leg and when shear leg rises, utilizes stored energy elevates weighing arm; This energy storage apparatus comprises accumulation of energy oil cylinder and accumulator, and the accumulation of energy oil cylinder has accumulation of energy oil cylinder epicoele and the accumulation of energy oil cylinder cavity of resorption that is separated by energy storage piston, and the energy storage piston bar that is operatively connected with shear leg; Upper space in the accumulator has been filled with the body of calming the anger, and lower space has been filled with pressure hydraulic oil and has been communicated with accumulation of energy oil cylinder cavity of resorption fluid; Be used to control the control oil cylinder that shear leg goes up and down, the control oil cylinder has the control oil cylinder epicoele and control oil cylinder cavity of resorption that is separated by control piston, and the control piston bar that is operatively connected with shear leg; Be used for supplying with the oil hydraulic pump that pressure hydraulic oil is arranged to control oil cylinder epicoele or control oil cylinder cavity of resorption selectively through distributor; When oil hydraulic pump is supplied with when the hydraulic oil of pressure is arranged to control oil cylinder epicoele through distributor; The control piston bar drives shear leg and descends; The energy storage piston bar of the weight of shear leg pushing accumulation of energy oil cylinder pushes the hydraulic oil of accumulation of energy oil cylinder cavity of resorption in the accumulator lower space, and the gas in the compress energy storage device upper space is to reclaim the gravitational potential energy of shear leg thus; When oil hydraulic pump is supplied with when the hydraulic oil of pressure is arranged to control oil cylinder cavity of resorption through distributor; The control piston bar drives shear leg and rises; The energy storage piston bar is raised; Thereby the pressurized gas in the accumulator upper space pushes accumulation of energy oil cylinder cavity of resorption with the hydraulic oil in the accumulator lower space, discharges the energy that is reclaimed thus and promotes the energy storage piston bar and upwards rise shear leg.
On the other hand, the utility model also provides a kind of Work machine that comprises shear leg and above-mentioned shear leg elevating system.
The weight of the energy shear leg in a basic balance self that the energy storage apparatus that the utility model utilization is made up of accumulator and accumulation of energy oil cylinder is stored; Wherein accumulator and accumulation of energy oil cylinder itself constitutes the system of a complete closed; Only play accumulation of energy and exergonic effect; Any control valve need not be set, and this system just can not work if do not take place to leak always.Like this, compared with prior art, the hydraulic power system of Work machine whole castering action that do not recur itself just controls and provides part thrust through the control oil cylinder to the up-down of shear leg.Thus, the shear leg elevating system of the utility model is simple in structure, installation and easy to operate, and reliability and durability, and can save energy, improve the working efficiency of shear leg.
Description of drawings
Fig. 1 is the schematic representation according to the elevating system of an embodiment's of the utility model the shear leg that is used for Work machine.
Reference numerals list
1 shear leg
The piston rod of 2 accumulation of energy oil cylinders
3 weights
4 accumulation of energy oil cylinders
The epicoele of 4a accumulation of energy oil cylinder
The cavity of resorption of 4b accumulation of energy oil cylinder
5 have the hydraulic power unit of hydraulic oil container
6 pipelines
7 accumulators
8 motors
9 oil hydraulic pumps
10 distributors
11 controllers
12 control oil cylinders
The epicoele of 12a control oil cylinder
The cavity of resorption of 12b control oil cylinder
The piston of 13 accumulation of energy oil cylinders
14 valves
15 one-way valves
16 hydralic pressure gauges
17 pipelines
18 valves
19 hydraulic oil
20 gases
21 inflators (gas charging valve)
The piston of 22 control oil cylinders
The piston rod of 23 control oil cylinders
24 valves
25 return lines
26 sensors
27 hydraulic pipe lines
28 hydraulic pipe lines
29 radiators
Embodiment
Fig. 1 is an embodiment of the example shear leg elevating system that shows the utility model with the shear leg 1 of excavator, and the scraper bowl that this excavator utilization is installed in shear leg 1 end excavates and shift weight 3 to carry out operation.This shear leg elevating system comprises three oil cylinders that are installed in shear leg 1 below, wherein, be connected and be control oil cylinder 12 under the shear leg 1, and what be connected respectively to shear leg 1 both sides in the both sides of control oil cylinder 12 is two accumulation of energy oil cylinders 4.Each oil cylinder all has cylinder body, piston and piston rod, and is divided into two chambeies up and down by piston 22,13 separately, and filling hydraulic oil is with piston and piston rod movement in these chambeies.These three oil cylinders are arranged concurrently, are fixed in the lower end on the underframe of excavator, and are operatively connected via separately piston rod and shear leg 1 in the upper end.
The cavity of resorption 4b of accumulation of energy oil cylinder 4 can be connected to accumulator 7 through pipeline 17 and 6.Accumulator 7 and accumulation of energy oil cylinder 4 common formation energy storage apparatuss.Accumulator 7 can be installed and one or morely be communicated with accumulation of energy oil cylinder 4.In the present embodiment, the upper space of accumulator 7 has been filled with the body 20 of calming the anger, and lower space has been filled with pressure hydraulic oil 19.Can be connected with inflator 21 (being gas charging valve in the present embodiment) and the hydraulic power unit 5 that has hydraulic oil container with on accumulator 7 and the pipeline 6 that the cavity of resorption of accumulation of energy oil cylinder 4 is connected, be respectively applied for to supply with accumulation of energy oil cylinder cavity of resorption 4b and calm the anger body and pressure hydraulic oil is arranged to accumulator 7.In addition,,, be used for hydraulic oil is dispelled the heat, to guarantee that hydraulic fluid temperature is normal so on pipeline 6, also can be connected with radiator 29 because hydraulic oil can produce heat when work.Control oil cylinder 12 can be connected to the hydraulic system by motor 8 drivings of excavator through hydraulic pipe line 27, is oil hydraulic pump 9 in the present embodiment.Oil hydraulic pump 9 can be equipped with distributor 10, and oil hydraulic pump 9 is communicated with the epicoele 12a and the cavity of resorption 12b fluid of control oil cylinder 12 respectively through distributor 10 and hydraulic pipe line 27.Signal or manually-operable that distributor 10 can for example send in response to the excavator driver make oil hydraulic pump 9 to the epicoele 12a or the cavity of resorption 12b supply of control oil cylinder 12 pressure hydraulic oil arranged selectively.
In the present embodiment; As shown in Figure 1; Also can be provided with controller 11; This controller 11 is connected with the distributor 10 of oil hydraulic pump 9, epicoele 12a, the epicoele 4a of accumulation of energy oil cylinder 4 and the hydraulic oil container of hydraulic power unit 5 of control oil cylinder 12 with return line 25 through hydraulic pipe line 27,27,28 respectively, is communicated with the distributor 10 of opening or break off oil hydraulic pump 9 selectively, the epicoele 12a of control oil cylinder 12, the epicoele 4a and the fluid between the hydraulic power unit 5 of accumulation of energy oil cylinder 4.Generally; Will pass through distributor 10 when the epicoele 12a of control oil cylinder 12 supplies with hydraulic oil at oil hydraulic pump 9, controller 11 is opened distributor 10 and is led to the path of the epicoele 12a that controls oil cylinder 12 so that oil hydraulic pump 9 has pressure hydraulic oil through distributor 10 and controller 11 to the epicoele 12a of control oil cylinder 12 supply.Other control operation of controller 11 will be described below.
Utilization makes shear leg 1 up-down according to the shear leg elevating system of the utility model the foregoing description operating method is described below.
Before making shear leg 1 up-down, at first the shear leg elevating system is carried out precharge.As shown in Figure 1; Open the valve 14 that is located in the pipeline 6 earlier; Utilize the gas charging valve 21 be installed in the pipeline 6 by the road 6 to accumulator 7 blanketing gas then, nitrogen for example, will close the valve in the hydraulic power unit 5 24 in case gas is run out of through hydraulic power unit from pipeline 6 this moment.After gas is filled into certain pressure, stops inflation, and close gas charging valve 21.Then, open valve 24, and start hydraulic power unit 5 so that hydraulic oil is charged in the cavity of resorption of accumulator 7 and the accumulation of energy oil cylinder 4 that links to each other through one-way valve 15, correspondingly, hydraulic oil makes the gas in the cavity of resorption of pipeline 6,17 and accumulation of energy oil cylinder 4 discharge through valve 24.When reaching requirement, turn off hydraulic power unit 5, stop to fill hydraulic oil Deng the pressure reading that is contained in the hydralic pressure gauge 16 on the pipeline 6.At this moment; In the upper space of accumulator 7, be filled with the body 20 of calming the anger, pressed hydraulic oil 19 (wherein, gas 20 light specific gravities and in lower space and the accumulation of energy oil cylinder cavity of resorption 4b that is in fluid communication with it, be filled with; And hydraulic oil 19 is than great; So gas 20 is eternal in the upper space of accumulator 7, and hydraulic oil 19 is forever in lower space), and in accumulator 7 and accumulation of energy oil cylinder cavity of resorption 4b, have certain pressure; Wherein, the active force that can set on the piston rod 2 that the hydraulic oil that makes in the accumulator 7 acts on accumulation of energy oil cylinder 4 of this pressure can be with in a basic balance by the active force of weight on piston rod 2 of shear leg 1.
As top description ground, filling gas and hydraulic oil with after carrying out precharge; The energy storage apparatus that is made up of accumulator 7 and accumulation of energy oil cylinder 4 just becomes the system of a sealing, can not work always and need not recharge gas and hydraulic oil if do not leak it.Even leak; Inflator 21 also capable of using is supplemented with in the cavity of resorption 4b of accumulator 7 and accumulation of energy oil cylinder 4 with hydraulic power unit 5 and calms the anger body and pressure hydraulic oil is arranged, and the active force on the piston rod 2 that is acted on accumulation of energy oil cylinder 4 by the hydraulic oil in the accumulator 7 is with in a basic balance by the active force of weight on piston rod 2 of shear leg 1.
After above-mentioned precharge work was accomplished, this shear leg elevating system just capable of using made shear leg 1 rising and decline.At first, pilot engine 8, hydraulic system (oil hydraulic pump 9) is started working.When shear leg 1 needed to descend, the driver of Work machine promoted distributor 10 signals that Joystick is given oil hydraulic pump 9, and distributor 10 is delivered to control oil cylinder 12 epicoeles with hydraulic oil, and the piston rod 23 that promotes control oil cylinder 12 descends and drives shear leg 1 and descends.At this moment the weight of shear leg 1 (with weight 3) all is pressed on the accumulation of energy oil cylinder 4.So; The potential energy that produces when utilizing the shear leg deadweight to descend promotes accumulation of energy oil cylinder 4; The hydraulic oil of the piston rod below of accumulation of energy oil cylinder 4 is compressed; Pressure begins to rise, so shift the hydraulic oil below the piston rod of accumulation of energy oil cylinder 4 onto accumulator 7 the insides from the filler opening of accumulator 7 bottoms by force through pipeline 6.Because hydraulic oil is shifted onto 7 li of accumulators by force from the filler opening of accumulator 7 bottoms, and the space of accumulator 7 the insides is reduced, make the interior gas 20 of upper space of accumulator 7 be compressed the purpose that reaches accumulation of energy.When needing to rise Deng shear leg 1, the driver promotes distributor 10 signals that Joystick is given hydraulic system, and distributor 10 is delivered to hydraulic oil and controlled oil cylinder 12 cavity of resorptions, and the piston rod 23 that promotes control oil cylinder 12 rises, and drives shear leg 1 rising.So just, broken the pressure balance of the hydraulic oil of accumulation of energy oil cylinder 4 cavity of resorptions and accumulator 7 the insides.At this moment the pressure of accumulation of energy oil cylinder 4 cavity of resorptions begins to descend, and the hydraulic fluid pressure of accumulator 7 the insides is higher than the hydraulic fluid pressure of accumulation of energy oil cylinder 4 cavity of resorptions.So the high-pressure and hydraulic that accumulator is 7 li oil 19 pours in the cavity of resorption of accumulation of energy oil cylinder 4 through pipeline 6, the piston rod 2 that promotes accumulation of energy oil cylinder 4 moves upward, like this shear leg 1 just fast with rise like a cork next.
In existing technology, it is that hydraulic system 9 and 10 by motor 8 promotes by force that shear leg 1 pumps, and the utility model then is to utilize accumulator 7 and the weight balancing of accumulation of energy oil cylinder 4 with shear leg 1 and weight 3.The oil hydraulic pump 9 of motor 8 and distributor 10 whole castering actions that do not recur so be pumping and the effect of part Driving force of control shear leg 1.The characteristics one of the utility model are to utilize the up-down of 12 pairs of shear legs of control oil cylinder to control; The 2nd, utilize the accumulation of energy oil cylinder 4 of shear leg 1 to come accumulation of energy with accumulator 7, wherein accumulator 7 itself does not have control valve with accumulation of energy oil cylinder 4, has been accumulation of energy and energy release action, keeps the weight of shear leg 1 and the pressure in the accumulator 7 in a basic balance mutually.Like this, compared with prior art, upgrading the weighing arm 1 required hydraulic power of being supplied with to control oil cylinder 12 by oil hydraulic pump 9 can reduce greatly, thereby can make motor 8 fuel-efficient, and accelerates the lifting speed of shear leg 1.That is to say that according to the utility model, accumulator 7 stores the potential energy that shear leg is conducted oneself with dignity through accumulation of energy oil cylinder 4 when shear leg 1 descends, and when upgrading weighing arm 1, discharges stored energy to assist and to accelerate the lifting of shear leg 1.Like this, just effectively reclaim fully and the gravitational potential energy when having utilized shear leg 1 to descend, improved the operating efficiency of Work machine simultaneously.
In addition; The energy storage apparatus that is made up of accumulation of energy oil cylinder 4 and accumulator 7 is not connected with main hydraulic system 9; But independent agency; Just utilize the dead-weight balanced of this mechanism and shear leg 1, therefore needn't worry shear leg 1 focus on certainly the time can consume excessive power, so can make shear leg 1 heavier to strengthen the intensity of shear leg 1.
The shear leg elevating system of the utility model is simple in structure, easy for installation, uses reliability and durability, and easy and simple to handle, energy-saving effect is remarkable.
Next, the specific operation to controller 11 describe.When rising by control oil cylinder 12 control shear legs 1; Controller 11 is opened the path from the epicoele 4a of accumulation of energy oil cylinder 4 to the hydraulic oil container of hydraulic power unit 5, makes that the hydraulic oil among the epicoele 4a of accumulation of energy oil cylinder 4 is got back to hydraulic oil container through the distribution of controller 11 and through return line 25; When control oil cylinder 12 control shear legs 1 descended, the piston 13 of accumulation of energy oil cylinder 4 began to descend, and the epicoele 4a of accumulation of energy oil cylinder 4 just begins vacuum so that hydraulic oil via controller 11 from the hydraulic oil container of hydraulic power unit 5 is drawn onto in the epicoele 4a; If down driving, control oil cylinder 12 needs bigger power when not enough (control the Driving force of oil cylinder 12 upper cavity pressures) when shear leg 1 descends; Increased pressure in the control oil cylinder epicoele; Can send signal this moment to controller 11; Let controller 11 close the path of getting back to the hydraulic oil container of hydraulic power unit 5 from accumulation of energy oil cylinder 4 epicoeles; Open path simultaneously, make the pressure hydraulic oil of supplying with by oil hydraulic pump 9 that has also can be transported to the epicoele of accumulation of energy oil cylinder 4 through distributor 10 and controller 11 from distributor 10 to accumulation of energy oil cylinder 4 epicoeles.That is to say; This moment, controller 11 made the epicoele of accumulation of energy oil cylinder 4 be communicated with control oil cylinder 12 epicoeles parallelly; So go up the last cavity area that cavity area is increased to a plurality of oil cylinders for one by control oil cylinder 12; This makes the epicoele thrust of oil cylinder increase, and the piston that further promotes them moves downward, and promotes the active force that shear leg 1 descends thereby increase.Here; For example; When be arranged in the pipeline 27 or control oil cylinder epicoele in sensor 26 detect pressure in the epicoele 12a of control oil cylinder 12 when being higher than predetermined value; Show that required downward thrust is bigger, sensor 26 sent the epicoele that signalisation controller 11 makes control oil cylinder 12 and was communicated with the epicoele of accumulation of energy oil cylinder 4 to help 1 decline of promotion shear leg this moment.
Being noted herein that controller 11 can not have yet, is exactly to supply with hydraulic oil by the directly past control oil cylinder of distributor 10 12 epicoeles, and at this moment the hydraulic oil container of accumulation of energy oil cylinder 4 epicoeles and hydraulic power unit 5 directly is communicated with and does not have controller 11 to control; Also can be that distributor 10 is directly supplied with hydraulic oil toward control oil cylinder 12 epicoeles and accumulation of energy oil cylinder 4 epicoeles parallelly connectedly; Can also be that distributor 10 is directly supplied with hydraulic oil toward accumulation of energy oil cylinder 4 epicoeles, at this moment control oil cylinder 12 epicoeles and directly be communicated with do not have controller 11 controls with hydraulic oil container.These several kinds of modes can both be accomplished the effect that control shear leg 1 goes up and down, effective when just controlling speed that shear leg 1 goes up and down and thrust not if any controller 11.
The lifting of shear leg 1 and down maneuver are alternately back and forth carried out, and quit work up to Work machine.At this moment, the valve 14 in 6 of can blinding off a line promotes shear leg to avoid the hydraulic oil of pressure that has in the accumulator 7, when the no one controls, rises automatically.In addition, also can be accumulator 7 and be equipped with independent valve 18, thus the convenience when improving Security and changing accumulator.
In the working procedure that shear leg 1 rises and descends; Pressure in the locking system that is made up of accumulator 7 and accumulation of energy oil cylinder 4 fluctuates because of the up-down of shear leg 1 to some extent; But also fluctuation accordingly of the active force of weight on the piston rod of accumulation of energy oil cylinder owing to the up-down of shear leg by shear leg 1; Therefore the active force that is acted on the piston rod of accumulation of energy oil cylinder by the hydraulic oil in the accumulator 7 is maintained with in a basic balance by the active force of weight on the piston rod of accumulation of energy oil cylinder of shear leg 1 all the time, the active force and the energy that need be provided by the hydraulic system of motor with saving.But, the size of the pressure in the locking system that constitutes by accumulator 7 and accumulation of energy oil cylinder 4 also can regulate as required (for example through inflator 21 and/or hydraulic power unit 5 charge and discharge gas and/or charge and discharge oil carry out).
An embodiment of the utility model has been described in the preceding text; But accumulation of energy oil cylinder and the quantity of control oil cylinder and the situation that relative position is not limited to describe in the foregoing description in the utility model; But can be (for example with any suitable quantity; One, two or more) the control oil cylinder of accumulation of energy oil cylinder and any suitable quantity (for example,, two or more) be installed in either side or the centre or the both sides of shear leg 1, and the accumulation of energy oil cylinder uses with control oil cylinder also exchangeable position.
The weight that the stored energy of the energy storage apparatus that the utility model utilization is made up of accumulator and accumulation of energy oil cylinder comes shear leg in a basic balance self; Wherein accumulator and accumulation of energy oil cylinder itself constitutes the system of a complete closed; Only play accumulation of energy and exergonic effect; Any control valve need not be set, and this system just can not work if do not take place to leak always.Like this, compared with prior art, the hydraulic power system of Work machine (by engine-driving) whole castering action that do not recur itself just controls and provides part thrust through the control oil cylinder to the up-down of shear leg.Thus, the shear leg elevating system of the utility model is simple in structure, installation and easy to operate, and reliability and durability, and can save energy, improve the working efficiency of shear leg.
The shear leg elevating system of the utility model can be applicable to have any Work machine of shear leg, for example excavator, loader, crane or the like.
Obviously, for a person skilled in the art, under the situation of scope that does not break away from the utility model or spirit, can make various modifications and modification to preceding text the disclosed embodiments.According to the disclosed practice to the utility model of this specification, other embodiment of the utility model is conspicuous to those skilled in the art.This specification and disclosed example thereof should be considered to exemplary just, and the true scope of the utility model is limited accompanying claims.
Claims (10)
1. elevating system that is used for the shear leg (1) of Work machine comprises:
The energy storage apparatus that is used for when shear leg (1) descends, storing the gravitational potential energy of shear leg and when shear leg (1) rises, utilizes stored energy elevates weighing arm; This energy storage apparatus comprises accumulation of energy oil cylinder (4) and accumulator (7); Accumulation of energy oil cylinder (4) has accumulation of energy oil cylinder epicoele (4a) and the accumulation of energy oil cylinder cavity of resorption (4b) that is separated by energy storage piston (13); And the energy storage piston bar (2) that is operatively connected with shear leg (1); Upper space in the accumulator (7) has been filled with the body of calming the anger (20), and lower space has been filled with pressure hydraulic oil (19) and has been communicated with accumulation of energy oil cylinder cavity of resorption (4b) fluid;
Be used to control the control oil cylinder (12) that shear leg goes up and down, control oil cylinder (12) has the control oil cylinder epicoele (12a) that separated by control piston (22) and controls oil cylinder cavity of resorption (12b), and the control piston bar (23) that is operatively connected with shear leg (1);
Be used for supplying with the oil hydraulic pump (9) that pressure hydraulic oil is arranged to control oil cylinder epicoele (12a) or control oil cylinder cavity of resorption (12b) selectively through distributor (10); When oil hydraulic pump (9) is supplied with when the hydraulic oil of pressure is arranged to control oil cylinder epicoele (12a) through distributor (10); Control piston bar (23) drives shear leg (1) and descends; The energy storage piston bar (2) of the weight pushing accumulation of energy oil cylinder (4) of shear leg (1); The hydraulic oil of accumulation of energy oil cylinder cavity of resorption (4b) is pushed in accumulator (7) lower space, and the gas in compress energy storage device (7) upper space is to reclaim the gravitational potential energy of shear leg (1) thus; When oil hydraulic pump (9) is supplied with when the hydraulic oil of pressure is arranged to control oil cylinder cavity of resorption (12b) through distributor (10); Control piston bar (23) drives shear leg (1) and rises; Energy storage piston bar (2) is raised; Thereby the pressurized gas in accumulator (7) upper space pushes accumulation of energy oil cylinder cavity of resorption (4b) with the hydraulic oil in accumulator (7) lower space, discharges the energy that is reclaimed thus and promotes energy storage piston bar (2) and upwards rise shear leg (1).
2. elevating system according to claim 1; It is characterized in that the gas that is filled in the accumulator (7) and the pressure of hydraulic oil are set the hydraulic oil that makes in the accumulator (7) for and acted on active force on the energy storage piston bar (2) with in a basic balance by the active force of weight on energy storage piston bar (2) of shear leg (1).
3. elevating system according to claim 1 is characterized in that, the gas that is filled in the accumulator (7) and the pressure of hydraulic oil can be regulated as required.
4. according to each described elevating system in the claim 1 to 3; It is characterized in that; Also comprise controller (11) and sensor (26), the distributor (10) that this controller is equipped with oil hydraulic pump (9) respectively, accumulation of energy oil cylinder epicoele (4a), control oil cylinder epicoele (12a) are connected with a hydraulic oil container and are configured to: will when control oil cylinder epicoele (12a) is supplied with hydraulic oil, open from oil hydraulic pump (9) through distributor (10) at oil hydraulic pump (9) and lead to the path of controlling oil cylinder epicoele (12a) so that oil hydraulic pump (9) have pressure hydraulic oil through distributor (10) and controller (11) to controlling oil cylinder epicoele (12a) supply through distributor (10); When shear leg (1) rises, open accumulation of energy oil cylinder epicoele (4a) and lead to the path of hydraulic oil container so that the hydraulic oil via controller (11) in the accumulation of energy oil cylinder epicoele (4a) is got back to hydraulic oil container; , opens by shear leg (1) path that hydraulic oil container leads to accumulation of energy oil cylinder epicoele (4a) when descending so that the hydraulic oil via controller (11) in the hydraulic oil container is inhaled in the accumulation of energy oil cylinder epicoele (4a); And when the pressure that utilizes sensor (26) to detect to be input to through distributor (10) and controller (11) by oil hydraulic pump (9) hydraulic oil in the control oil cylinder epicoele (12a) is higher than predetermined value; The signal that sends in response to sensor (26) and open from oil hydraulic pump (9) and lead to the path of accumulation of energy oil cylinder epicoele (4a) and close the path that accumulation of energy oil cylinder epicoele (4a) leads to hydraulic oil container through distributor (10), supply has pressure hydraulic oil with accumulation of energy oil cylinder epicoele (4a) to control oil cylinder epicoele (12a) simultaneously so that oil hydraulic pump (9) is through distributor (10) and controller (11).
5. according to each described elevating system in the claim 1 to 3; It is characterized in that; Distributor (10) is controlled through the manipulation operations handle by the driver of Work machine, the hydraulic oil of pressure to be arranged or to controlling oil cylinder cavity of resorption (12b) supply pressure hydraulic oil is arranged to controlling the supply of oil cylinder epicoele (12a) and/or accumulation of energy oil cylinder epicoele (4a) selectively.
6. according to each described elevating system in the claim 1 to 3; It is characterized in that, also comprise being connected between accumulator (7) and the accumulation of energy oil cylinder cavity of resorption (4b) the inflator (21) of the body of calming the anger to be arranged to their supplies and supply with the hydraulic power unit (5) that pressure hydraulic oil is arranged to their.
7. according to each described elevating system in the claim 1 to 3, it is characterized in that, also comprise radiator (29), this radiator is connected on the hydraulic oil path between accumulator (7) and the accumulation of energy oil cylinder cavity of resorption (4b) so that hydraulic oil is dispelled the heat.
8. according to each described elevating system in the claim 1 to 3, it is characterized in that the quantity of control oil cylinder (12) is one or more, the quantity of accumulation of energy oil cylinder (4) is one or more, and control oil cylinder (12) uses with accumulation of energy oil cylinder (4) exchangeable position.
9. elevating system according to claim 8 is characterized in that, two accumulation of energy oil cylinders (4) of controlling oil cylinder (12) and laying respectively at these control oil cylinder both sides are installed in the below of shear leg (1) concurrently.
10. Work machine comprises shear leg (1) and according to each described elevating system in the claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205519007U CN202391827U (en) | 2011-12-12 | 2011-12-26 | Lifting system for erector arm of working machine and working machine |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110412723 | 2011-12-12 | ||
| CN201110412723.9 | 2011-12-12 | ||
| CN2011205519007U CN202391827U (en) | 2011-12-12 | 2011-12-26 | Lifting system for erector arm of working machine and working machine |
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| Publication Number | Publication Date |
|---|---|
| CN202391827U true CN202391827U (en) | 2012-08-22 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110443829.5A Active CN102518606B8 (en) | 2011-12-12 | 2011-12-26 | Lifting system and lifting method for crane boom of working machine and working machine |
| CN2011205519007U Expired - Lifetime CN202391827U (en) | 2011-12-12 | 2011-12-26 | Lifting system for erector arm of working machine and working machine |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110443829.5A Active CN102518606B8 (en) | 2011-12-12 | 2011-12-26 | Lifting system and lifting method for crane boom of working machine and working machine |
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| Country | Link |
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| CN (2) | CN102518606B8 (en) |
| HK (1) | HK1170788A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518606A (en) * | 2011-12-12 | 2012-06-27 | 杨双来 | Lifting system and lifting method for crane boom of working machine and working machine |
| CN103993625A (en) * | 2014-06-06 | 2014-08-20 | 山东中川液压有限公司 | Three-oil cylinder movable arm working device of hydraulic excavator |
| CN104005435A (en) * | 2014-06-06 | 2014-08-27 | 山东中川液压有限公司 | Efficient energy-saving environment-friendly oil-hydraulic hybrid powder excavator |
| WO2015032236A1 (en) * | 2013-09-06 | 2015-03-12 | 湖南三一智能控制设备有限公司 | Reach stacker potential energy recovery system and reach stacker |
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| CN102943496B (en) * | 2012-12-03 | 2015-02-25 | 柳工常州机械有限公司 | Potential energy recycling system of movable arm of excavator |
| CN103526787A (en) * | 2013-10-19 | 2014-01-22 | 王守武 | Movable arm balance excavator |
| CN104005440A (en) * | 2014-06-06 | 2014-08-27 | 山东中川液压有限公司 | Potential energy recovering control device of hydraulic excavator boom |
| CN105887954A (en) * | 2014-12-23 | 2016-08-24 | 杨双来 | Novel energy-saving loader and control method thereof |
| CN104846863B (en) * | 2015-05-26 | 2017-05-31 | 齐齐哈尔大学 | A kind of Automatic Balance Regulation system of mechanical arm |
| DK201770923A1 (en) * | 2017-12-08 | 2019-06-25 | Cobot Lift Aps | Automated lifting device |
| CN110230577B (en) * | 2019-05-08 | 2021-01-05 | 沈阳建筑大学 | Energy recovery device for hoisting mechanism of tower crane |
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| JPH0826555B2 (en) * | 1990-09-10 | 1996-03-13 | 株式会社小松製作所 | Potential energy recovery and utilization device for work equipment |
| CN1019325B (en) * | 1991-02-11 | 1992-12-02 | 胜利石油管理局钻井工艺研究院 | Hydraulic energy storage petroleum workover rig or well drilling machine |
| CN2561926Y (en) * | 2002-08-08 | 2003-07-23 | 刘长年 | Walking beam style hydraulic oil sucker |
| JP4120324B2 (en) * | 2002-09-12 | 2008-07-16 | 沖電気工業株式会社 | Ball electrode forming method |
| JP2004162846A (en) * | 2002-11-14 | 2004-06-10 | Komatsu Ltd | Potential energy recovery/regeneration apparatus of work machine having regeneration information display function |
| CN1958972A (en) * | 2005-11-01 | 2007-05-09 | 李恒辉 | Method for retrieving reciprocating potential energy of working machines and tools |
| CN100427771C (en) * | 2006-12-14 | 2008-10-22 | 浙江大学 | Energy saving hydraulic lifting system of variable hydraulic counterweight |
| DE102008034582A1 (en) * | 2008-07-24 | 2010-01-28 | Liebherr-Hydraulikbagger Gmbh | implement |
| CN201679802U (en) * | 2010-06-01 | 2010-12-22 | 湖南山河智能机械股份有限公司 | Energy recovery system of hydraulic actuating mechanism |
| CN202056123U (en) * | 2011-03-21 | 2011-11-30 | 杨双来 | Potential-energy recuperating accumulator utilizing the dead weight of a crane arm |
| CN102518606B8 (en) * | 2011-12-12 | 2017-04-19 | 杨双来 | Lifting system and lifting method for crane boom of working machine and working machine |
-
2011
- 2011-12-26 CN CN201110443829.5A patent/CN102518606B8/en active Active
- 2011-12-26 CN CN2011205519007U patent/CN202391827U/en not_active Expired - Lifetime
-
2012
- 2012-11-14 HK HK12111514.0A patent/HK1170788A1/en active IP Right Revival
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518606A (en) * | 2011-12-12 | 2012-06-27 | 杨双来 | Lifting system and lifting method for crane boom of working machine and working machine |
| WO2015032236A1 (en) * | 2013-09-06 | 2015-03-12 | 湖南三一智能控制设备有限公司 | Reach stacker potential energy recovery system and reach stacker |
| CN103993625A (en) * | 2014-06-06 | 2014-08-20 | 山东中川液压有限公司 | Three-oil cylinder movable arm working device of hydraulic excavator |
| CN104005435A (en) * | 2014-06-06 | 2014-08-27 | 山东中川液压有限公司 | Efficient energy-saving environment-friendly oil-hydraulic hybrid powder excavator |
| CN104005435B (en) * | 2014-06-06 | 2016-12-07 | 山东中川液压有限公司 | A kind of high-efficient energy-saving environment friendly oil-liquid hybrid electric excavator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102518606B8 (en) | 2017-04-19 |
| CN102518606A (en) | 2012-06-27 |
| HK1170788A1 (en) | 2013-03-08 |
| CN102518606B (en) | 2016-01-27 |
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