CN102408075A - Energy-saving type crane - Google Patents
Energy-saving type crane Download PDFInfo
- Publication number
- CN102408075A CN102408075A CN2011103525417A CN201110352541A CN102408075A CN 102408075 A CN102408075 A CN 102408075A CN 2011103525417 A CN2011103525417 A CN 2011103525417A CN 201110352541 A CN201110352541 A CN 201110352541A CN 102408075 A CN102408075 A CN 102408075A
- Authority
- CN
- China
- Prior art keywords
- energy
- contact
- oil circuit
- accumulation
- energy storage
- 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.)
- Pending
Links
Images
Landscapes
- Jib Cranes (AREA)
Abstract
The invention discloses an energy-saving type crane. An energy storage speed increaser (31) which is driven by the first winding drum is connected to the outer end part of a first winding drum (21) and a hydraulic oil pump which is driven by the energy storage speed increaser is connected to the energy storage speed increaser (31); hydraulic oil in an energy storage oil path (51) is stored in an energy accumulator (5) by the hydraulic oil pump along rotation; a hydraulic motor (41) is connected to the energy accumulator (5) through an energy-releasing oil path (52); an energy-releasing speed reducer (42) which is unidirectionally driven by the hydraulic motor is connected to the hydraulic motor (41) and the energy-releasing speed reducer (42) is connected with the outer end part of the first winding drum (21), so that driving torques are conveniently supplied to the first winding drum (21) and the second winding drum (22). According to the structure design of the crane, all or parts of the negative work made by the gravity of a hanger system can be cancelled out and the installed capacity of a hoisting mechanism is reduced under the precondition of guaranteeing the hanging capability, so that the aim of saving energy can be realized.
Description
Technical field
The present invention relates to the hoisting crane technical field, particularly a kind of energy-saving hoisting crane.
Background technology
Along with the fast development of China's economic construction, also increasing for the demand of hoisting crane.Hoisting crane is as a kind of lifting appliance of large-tonnage goods, is widely used in the handling of wind power equipment handling and nuclear power generating equipment of building materials handling, wind energy turbine set of timber handling, the building ground in freight container handling, the forest farm of port and pier.
Yet in the prior art, during the crane for hoisting goods, the weight of sling system has occupied quite most watt loss, and in whole lifting operation process, these watt losss belong to idle work, and major part is slatterned in vain.With 41 tons of container handling cranes is example, and the weight of general sling system (containing upper sling and suspender) is about 13.5 tons, and the idle work of so each lifting operation accounts for 25%.The generating capacity of general this hoisting crane one cover lifting mechanism is minimum to be 500KW, calculates after this manner, per hour wastes electric energy 125 degree approximately.Pressed darg 10 hours, calculated in 1 year 300 days, the electric energy of waste in a year is 3,750,000 degree, and commercial power calculates by 1 yuan/degree, and every machine is harbour or the harbour is wasted 3,750,000 yuan.
In view of this, how hoisting crane of the prior art is improved, thereby the sling system of eliminating or offsetting this hoisting crane being made the watt loss that negative work causes, and then realize energy-conservation purpose, is the problem that those skilled in the art need solution badly.
Summary of the invention
The technical matters that the present invention will solve is for providing a kind of energy-saving hoisting crane; The structure design of this hoisting crane can be converted into the gravitional force in goods and the sling system decline process hydraulic pressure ability, and then this hydraulic pressure can be converted into kinetic energy, and counteraction is on the lifting mechanism of sling system; Final next all or part of counteracting sling system negative work that gravity is done; So just can hang under the prerequisite of loading capability, reduce the generating capacity of lifting mechanism, realize energy-conservation purpose in assurance.
For solving the problems of the technologies described above, the present invention provides a kind of energy-saving hoisting crane, comprise drive sling system hoist and descend, and first reel and second reel of coaxial setting, be provided with between the inner end of these two reels and drive the two main gear reducer that rotates simultaneously;
The outer end of said first reel is connected with the accumulation of energy booster engine by its driving, and this accumulation of energy booster engine is connected with the hydraulic oil pump by its driving, along with rotating said hydraulic oil pump the hydraulic oil reservoir in the accumulation of energy oil circuit is deposited in the energy storage;
Said energy storage also can be connected with HM Hydraulic Motor by oil circuit through releasing; Said HM Hydraulic Motor is connected with can reductor by releasing of its unidirectional drive; Said releasing can be connected with the outer end of said first reel by reductor, so that to this first reel and said second reel driving torque is provided.
Said energy-saving hoisting crane also comprises function unit, and when the pressure in the said energy storage reaches setting value and when said sling system hoists, said function unit sends to said energy storage and discharges the instruction that high pressure oil drives the HM Hydraulic Motor rotation.
Preferably, said hydraulic oil pump is a bidirectional ram pump, and said bidirectional ram pump is connected in this accumulation of energy oil circuit with its two ends;
Also be provided with the check valve group that is communicated with through oil circuit with said energy storage in the said accumulation of energy oil circuit, so that said bidirectional ram pump is when rotating and reverse, said accumulation of energy oil circuit all can be through this check valve group to the energy storage accumulation of energy.
Preferably, said check valve group comprises the quadrangle oil circuit, is equipped with check valve on four limit oil circuits of said quadrangle oil circuit;
Said quadrangle oil circuit is connected in the said accumulation of energy oil circuit with its first relative contact and second contact, is communicated with fuel tank with its 3rd contact, is communicated with said energy storage with its 4th contact relative with said the 3rd contact;
In the said quadrangle oil circuit, the flow direction of the check valve on the limit oil circuit between said first contact and said the 3rd contact by the 3rd contact finger to first contact; The flow direction of the check valve on the limit oil circuit between said second contact and said the 3rd contact by the 3rd contact finger to second contact; The flow direction of the check valve on the limit oil circuit between said first contact and said the 4th contact by first contact finger to the 4th contact; The flow direction of the check valve on the limit oil circuit between said second contact and said the 4th contact by second contact finger to the 4th contact.
Preferably, the oil circuit between said bidirectional ram pump and said first contact is provided with first by pass valve.
Preferably, the oil circuit between said bidirectional ram pump and said second contact is provided with second by pass valve.
Preferably, further be connected between said accumulation of energy booster engine and the said hydraulic oil pump through coupler.
Preferably, said HM Hydraulic Motor further can be connected by reductor with said releasing through unidirectional coupling.
Preferably, the said electromagnetic valve that can oil circuit be provided with by said function unit control of releasing reaches setting value and when said sling system hoisted, said function unit sent the instruction of opening to said electromagnetic valve with the pressure in the said energy storage of box lunch.
Preferably, said accumulation of energy oil circuit is provided with the pressure detecting part that detects oil pressure in the energy storage, and when pressure reached setting value in the said energy storage, said pressure detecting part sent pressure signal;
When said sling system hoisted, the master controller of said energy-saving hoisting crane sent the signal that hoists;
Said function unit is a multiplier, and said multiplier is received simultaneously when said pressure signal and said hoists signal, sent the instruction of opening to said electromagnetic valve.
Preferably, said pressure detecting part is a pressure relay.
On the basis of existing technology; Energy-saving hoisting crane provided by the present invention; The outer end of its first reel is connected with the accumulation of energy booster engine by its driving; This accumulation of energy booster engine is connected with the hydraulic oil pump by its driving, along with rotating said hydraulic oil pump the hydraulic oil reservoir in the accumulation of energy oil circuit is deposited in the energy storage.Particularly, transfer the stage at sling system and goods, this stage gravity acting, the gravitional force of sling system and goods passes through hydraulic oil pump conversion fluid pressure energy, and is stored in the energy storage.
In addition; Said energy storage also can be connected with HM Hydraulic Motor by oil circuit through releasing; Said HM Hydraulic Motor is connected with can reductor by releasing of its unidirectional drive, and said releasing can be connected with the outer end of said first reel by reductor, so that to this first reel and said second reel driving torque is provided.Particularly; When sling system and goods are lifted by crane; And when the force value in the energy storage obtained setting value, function unit sent the instruction that releases energy to energy storage, and the high pressure oil that energy storage discharges drives HM Hydraulic Motor and rotates; This rotation and then can reductor pass to first reel and second reel through releasing; Thereby give first reel and reactive torque of second reel, the gravity that overcomes sling system acts on the moment of torsion on the two through steel rope, like this with regard to all or part of moment of torsion of having offset the sling system generation.
In sum; Energy-saving hoisting crane provided by the present invention can be converted into the gravitional force in goods and the sling system decline process hydraulic pressure ability, and then this hydraulic pressure can be converted into kinetic energy, and counteraction is on the lifting mechanism of sling system; Final next all or part of counteracting sling system negative work that gravity is done; So just can hang under the prerequisite of loading capability, reduce the generating capacity of lifting mechanism, realize energy-conservation purpose in assurance.
Description of drawings
Fig. 1 is the operation process chart of hoisting crane in an embodiment of the present invention;
Fig. 2 is the structural representation of the lifting mechanism of hoisting crane among Fig. 1;
Fig. 3 is the fluid control schematic diagram of lifting mechanism among Fig. 2;
Signal relation sketch when Fig. 4 releases ability for energy storage among Fig. 3;
Fig. 5 is the steel rope winding structure figure of the lifting mechanism of hoisting crane among Fig. 1.
Wherein, the corresponding relation between Reference numeral and the component names is among Fig. 1 to Fig. 5:
11 sling systems; 12 goods; 13 translation dollies;
21 first reels; 22 second reels; 23 main gear reducers; 24 electrical motors;
31 accumulation of energy booster engines; 32 bidirectional ram pumps; 33 coupler;
41 HM Hydraulic Motors; 42 release the ability reductor; 43 unidirectional couplings;
5 energy storages; 51 accumulation of energy oil circuits; 52 release the ability oil circuit; 53 check valve groups; 531 first contacts; 532 second contacts; 533 the 3rd contacts; 534 the 4th contacts; 535 check valves; 54 fuel tanks; 55 first by pass valves; 56 second by pass valves; 57 electromagnetic valves; 58 pressure detecting parts;
6 multipliers;
71 first steel ropes; 72 second steel ropes;
Sling system: a1 first roller; A2 second roller; A3 the 3rd roller; A4 the 4th roller;
The right fixed end of lifting mechanism; B1 first roller; B2 second roller; B3 the 3rd roller; B4 the 4th roller;
Lifting mechanism left side fixed end; C1 first roller; C2 second roller; C3 the 3rd roller; C4 the 4th roller;
The translation dolly; D1 first roller; D2 second roller; D3 the 3rd roller; D4 the 4th roller.
The specific embodiment
Core of the present invention is for providing a kind of energy-saving hoisting crane; The structure design of this hoisting crane can be converted into the gravitional force in goods and the sling system decline process hydraulic pressure can; And then this hydraulic pressure can be converted into kinetic energy; Counteraction finally comes all or part of counteracting sling system negative work that gravity is done on the lifting mechanism of sling system.
In order to make those skilled in the art understand technical scheme of the present invention better, the present invention is done further detailed description below in conjunction with accompanying drawing and specific embodiment.
Please refer to Fig. 1, Fig. 2 and Fig. 3, Fig. 1 is the operation process chart of hoisting crane in an embodiment of the present invention; Fig. 2 is the structural representation of the lifting mechanism of hoisting crane among Fig. 1; Fig. 3 is the fluid control schematic diagram of lifting mechanism among Fig. 2.
As shown in Figure 2; In one embodiment; Energy-saving hoisting crane provided by the present invention, comprise drive sling system 11 hoist and descend, and first reel 21 and second reel 22 of coaxial setting, be provided with between the inner end of these two reels and drive the two main gear reducer that rotates simultaneously 23; Need to prove that this main gear reducer 23 drives two reels simultaneously and rotates with speed in the same way simultaneously, and two coaxial settings of reel.Particularly, as shown in Figure 2, electrical motor 24 drives main gear reducers 23 and rotates, main gear reducer 23 and then drive first reel 21 with second reel 22 rotates and reverse, thus realize hoisting and transferring of sling system 11 and goods 12.
On the basis of said structure; As shown in Figure 2; The outer end of first reel 21 is connected with the accumulation of energy booster engine 31 by its driving, and this accumulation of energy booster engine 31 is connected with the hydraulic oil pump by its driving, along with rotating hydraulic oil pump the hydraulic oil reservoir in the accumulation of energy oil circuit 51 is deposited in the energy storage 5; And; As shown in Figure 2, energy storage 5 also can oil circuit 52 be connected with HM Hydraulic Motor 41 through releasing, and HM Hydraulic Motor 41 is connected with can reductor 42 by releasing of its unidirectional drive; Release and to be connected with the outer end of first reel 21 by reductor 42, so that driving torque is provided to this first reel 21 and second reel 22.
In addition, energy-saving hoisting crane also comprises function unit, and when the pressure in the energy storage 5 reaches setting value and when sling system 11 hoists, function unit sends to energy storage 5 and discharges the instruction that high pressure oil drives HM Hydraulic Motor 41 rotations.
Technical ability type hoisting crane provided by the present invention comprises accumulation of energy process and exoergic process.
About the accumulation of energy process
As shown in Figure 1, in the C zone, goods 12 is lowered with sling system 11, this stage gravity acting, and the gravitional force in this stage is converted into the hydraulic pressure ability through hydraulic oil pump, is stored in the energy storage 5; In the a-quadrant, unloaded sling system 11 is lowered, and this stage also is a gravity acting, and the gravitional force in this stage also is converted into the hydraulic pressure ability through hydraulic oil pump, is stored in the energy storage 5.
Hence one can see that, in the 12 handling cycles of goods each time, always has the gravity acting process twice; This moment, gravitional force all can act on first reel 21 and second reel 22 through steel rope; Because the outer end of first reel 21 is connected with accumulation of energy booster engine 31, thereby the rotation of two reels passes to hydraulic oil pump through after the speedup; Hydraulic oil pump and then the hydraulic oil in the accumulation of energy oil circuit 51 is stored in the energy storage 5 is realized accumulation of energy.
About exoergic process
In the a-quadrant, goods 12 is lifted by crane with sling system 11, and this stage is to overcome gravity acting, needs consumed power; In the C zone, sling system 11 is lifted by crane, and this stage overcomes gravity acting, needs consumed power.In above-mentioned two stages; When the pressure in the energy storage 5 reaches setting value; Function unit sends the instruction that releases energy to energy storage 5; The high pressure oil that energy storage 5 discharges drives HM Hydraulic Motor 41 and rotates, this rotation and then can pass to first reel 21 and second reel 22 by reductor 42 through releasing, thereby to first reel 21 and 22 1 reactive torques of second reel; The gravity that overcomes sling system 11 acts on the moment of torsion on the two through steel rope, has so just all offset the moment of torsion that sling system 11 produces.That is acting on two moments of torsion on the reel after this moment, sling system 11 synthesized with HM Hydraulic Motor 41 is zero, and the weight of whole sling system 11 is reduced to zero, thereby reaches energy saving purposes.
In addition, in B zone, at parallel motion, first reel and second reel do not rotate in the drive of translation dolly for sling system and goods, thereby consumed power not.
Particularly, in technique scheme, can make concrete design to accumulation of energy oil circuit 51.
Such as, please refer to Fig. 3, hydraulic oil pump is a bidirectional ram pump 32, bidirectional ram pump 32 is connected in this accumulation of energy oil circuit 51 with its two ends; Also be provided with 535 group 53 of the check valve that be communicated with through oil circuit with energy storage 5 in the accumulation of energy oil circuit 51, so that bidirectional ram pump 32 is when rotating and reverse, accumulation of energy oil circuit 51 all can be through 535 group 53 of this check valve to energy storage 5 accumulation of energys.The said structure design makes no matter bidirectional ram pump 32 is just to change, and still counter-rotating all can be to energy storage 5 accumulation of energys.
Particularly, as shown in Figure 3, check valve comprises the quadrangle oil circuit for 535 group 53, is equipped with check valve 535 on four limit oil circuits of quadrangle oil circuit;
The quadrangle oil circuit is connected in the accumulation of energy oil circuit 51 with its first relative contact 531 and second contact 532, is communicated with fuel tank 54 with its 3rd contact 533, is communicated with energy storage 5 with the 3rd contact 533 the 4th relative contacts 534 with it;
In the quadrangle oil circuit, first contact 531 that the flow direction of the check valve 535 on the limit oil circuit between first contact 531 and the 3rd contact 533 is pointed to by the 3rd contact 533; Second contact 532 that the flow direction of the check valve 535 on the limit oil circuit between second contact 532 and the 3rd contact 533 is pointed to by the 3rd contact 533; The 4th contact 534 that the flow direction of the check valve 535 on the limit oil circuit between first contact 531 and the 4th contact 534 is pointed to by first contact 531; The 4th contact 534 that the flow direction of the check valve 535 on the limit oil circuit between second contact 532 and the 4th contact 534 is pointed to by second contact 532.
In said structure, as shown in Figure 3, when bidirectional ram pump 32 is just changeing; Hydraulic oil flows to second contact 532 by the 3rd contact 533 in the fuel tank 54, and then gets in the accumulation of energy oil circuit 51, by the lower end entering of bidirectional ram pump 32 among the figure; 32 pressurizations are quickened through bidirectional ram pump, are flowed out by the upper end of bidirectional ram pump 32 among the figure, pass through accumulation of energy oil circuit 51 again; Flow to the 4th contact 534 through first contact 531, finally be stored in the energy storage 5 then.
As shown in Figure 3, when bidirectional ram pump 32 counter-rotatings, hydraulic oil flows to first contact 531 by the 3rd contact 533 in the fuel tank 54; And then get in the accumulation of energy oil circuit 51, by the upper end entering of bidirectional ram pump 32 among the figure, 32 pressurizations are quickened through bidirectional ram pump; Flow out lower end by bidirectional ram pump 32 among the figure; Pass through accumulation of energy oil circuit 51 again, flow to the 4th contact 534, finally be stored in the energy storage 5 then through second contact 532.
Hence one can see that, and the structure design that above-mentioned check valve is 535 group 53 makes bidirectional ram pump 32 rotate and reverse all can realize accumulation of energy.
In addition; In above-mentioned hydraulic circuit; In order to prevent that check valve 535 from damaging the back hydraulic circuit and being damaged; As shown in Figure 3, can be provided with first by pass valve 55 on the oil circuit between the bidirectional ram pump 32 and first contact 531, can be provided with second by pass valve 56 on the oil circuit between the bidirectional ram pump 32 and second contact 532.
In addition, as shown in Figure 2, further be connected between accumulation of energy booster engine 31 and the hydraulic oil pump through coupler 33.This accumulation of energy booster engine 31 drives hydraulic oil pump through coupler 33 and rotates.As shown in Figure 2, HM Hydraulic Motor 41 further can reductor 42 be connected with releasing through unidirectional coupling 43, and this unidirectional coupling 43 can be so that HM Hydraulic Motor 41 drives be released and can rotate by booster engine, but can not make and release and can drive HM Hydraulic Motor 41 rotations by booster engine.This structure design has guaranteed the one-way that HM Hydraulic Motor 41 drives, that is two reel impassabititys release and can rotate by reductor 42 reverse drive HM Hydraulic Motors 41, and can only drive HM Hydraulic Motors 41 unidirectional rotation by energy storage 5.
Please be simultaneously with reference to figure 3 and Fig. 4, the signal relation sketch when Fig. 4 releases ability for energy storage 5 among Fig. 3.
As shown in Figure 3, release the electromagnetic valve 57 that can oil circuit 52 be provided with by function unit control, reach setting value and when sling system 11 hoisted, function unit sent the instruction of unlatching to electromagnetic valve 57 with the pressure in the convenient energy storage 5.In this kind structure,, control the release of energy in the energy storage 5 and interrupt release by this electromagnetic valve 57 again by function unit control electromagnetic valve 57.
Particularly, as shown in Figure 3, accumulation of energy oil circuit 51 is provided with the pressure detecting part 58 that detects oil pressure in the energy storage 5; When pressure reaches setting value in the energy storage 5; Pressure detecting part 58 sends pressure signal, and particularly, this pressure detecting part 58 can be pressure relay; And when sling system 11 hoisted, the master controller of energy-saving hoisting crane sent the signal that hoists; On this basis, as shown in Figure 4, function unit is a multiplier 6, when multiplier 6 is received pressure signal simultaneously and hoisted signal, sends the instruction of unlatching to electromagnetic valve 57.Particularly, when multiplier 6 is received pressure signal simultaneously and is hoisted signal, the high level signal of its output, this signal drives electromagnetic valve 57 and opens; When 6 of multipliers are received pressure signal and are hoisted in the signal one the time, the low level signal of its output, 57 ones of electromagnetic valves are not opened.
In technique scheme, can also make concrete design to the winding relation of the steel rope on the lifting mechanism; Particularly, please refer to Fig. 5, Fig. 5 is the steel rope winding structure figure of the lifting mechanism of hoisting crane among Fig. 1.
As shown in Figure 5; First steel rope 71 on first reel 21 is walked around the lifting mechanism left side fixed end first roller c1; The 4th roller d4 on second roller b2 of the first roller d1 on the process translation dolly 13, the first roller a1 on the sling system 11, the first roller d1 on the translation dolly 13, the right fixed end of lifting mechanism and the 4th roller b4, the translation dolly 13, the 4th roller a4 on the sling system 11, the 4th roller d4 on the translation dolly 13, the lifting mechanism left side fixed end first roller c3 are wound on second reel 22 at last.The extension track of second steel rope 72 is as shown in Figure 5, is similar to the extension track of above-mentioned first steel rope 71, repeats no more at this.
In said structure, as shown in Figure 5, when first reel 21 and second reel 22 rotate with the direction of rolling steel rope,, thereby realize the lifting of sling system 11 and goods 12 through the rotation of each relevant roller; When first reel 21 and second reel 22 rotate with the direction that discharges steel rope,, thereby realize transferring of sling system 11 and goods 12 through the rotation of each relevant roller.
More than a kind of energy-saving hoisting crane provided by the present invention has been carried out detailed introduction.Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. energy-saving hoisting crane, comprise drive sling system (11) hoist and descend, and first reel (21) and second reel (22) of coaxial setting, be provided with the two main gear reducer that rotates simultaneously (23) of driving between the inner end of these two reels; It is characterized in that,
The outer end of said first reel (21) is connected with the accumulation of energy booster engine (31) by its driving, and this accumulation of energy booster engine (31) is connected with the hydraulic oil pump by its driving, along with rotating said hydraulic oil pump the hydraulic oil reservoir in the accumulation of energy oil circuit (51) is deposited in the energy storage (5);
Said energy storage (5) also can be connected with HM Hydraulic Motor (41) by oil circuit (52) through releasing; Said HM Hydraulic Motor (41) is connected with can reductor (42) by releasing of its unidirectional drive; Said releasing can be connected with the outer end of said first reel (21) by reductor (42), so that to this first reel (21) and said second reel (22) driving torque is provided.
Said energy-saving hoisting crane also comprises function unit; Pressure in said energy storage (5) reaches setting value and when said sling system (11) when hoisting, said function unit sends to said energy storage (5) and discharges the instruction that high pressure oil drives HM Hydraulic Motor (41) rotation.
2. energy-saving hoisting crane as claimed in claim 1 is characterized in that, said hydraulic oil pump is bidirectional ram pump (32), and said bidirectional ram pump (32) is connected in the said accumulation of energy oil circuit (51) with its two ends;
Also be provided with the check valve group (53) that is communicated with through oil circuit with said energy storage (5) in the said accumulation of energy oil circuit (51), so that said bidirectional ram pump (32) is when rotating and reverse, said accumulation of energy oil circuit (51) all can be through this check valve group (53) to the energy storage accumulation of energy.
3. energy-saving hoisting crane as claimed in claim 2 is characterized in that, said check valve group (53) comprises the quadrangle oil circuit, is equipped with check valve (535) on four limit oil circuits of said quadrangle oil circuit;
Said quadrangle oil circuit is connected in the said accumulation of energy oil circuit (51) with its relative first contact (531) and second contact (532); Be communicated with fuel tank (54) with its 3rd contact (533), be communicated with said energy storage (5) with its 4th contact (534) relative with said the 3rd contact (533);
In the said quadrangle oil circuit, first contact (531) that the flow direction of the check valve (535) on the limit oil circuit between said first contact (531) and said the 3rd contact (533) is pointed to by the 3rd contact (533); Second contact (532) that the flow direction of the check valve (535) on the limit oil circuit between said second contact (532) and said the 3rd contact (533) is pointed to by the 3rd contact (533); The 4th contact (534) that the flow direction of the check valve (535) on the limit oil circuit between said first contact (531) and said the 4th contact (534) is pointed to by first contact (531); The 4th contact (534) that the flow direction of the check valve (535) on the limit oil circuit between said second contact (532) and said the 4th contact (534) is pointed to by second contact (532).
4. energy-saving hoisting crane as claimed in claim 3 is characterized in that, the oil circuit between said bidirectional ram pump (32) and said first contact (531) is provided with first by pass valve (55).
5. energy-saving hoisting crane as claimed in claim 3 is characterized in that, the oil circuit between said bidirectional ram pump (32) and said second contact (532) is provided with second by pass valve (56).
6. like each described energy-saving hoisting crane of claim 1 to 5, it is characterized in that, further be connected between said accumulation of energy booster engine (32) and the said hydraulic oil pump through coupler (33).
7. like each described energy-saving hoisting crane of claim 1 to 5, it is characterized in that said HM Hydraulic Motor (41) further can be connected by reductor (42) with said releasing through unidirectional coupling (43).
8. like each described energy-saving hoisting crane of claim 1 to 5; It is characterized in that; Said releasing can be provided with the electromagnetic valve (57) by said function unit control by oil circuit (52); Reach setting value and when said sling system (11) when hoisting, said function unit sends the instruction of opening to said electromagnetic valve (57) with the pressure in the said energy storage of box lunch (5).
9. energy-saving hoisting crane as claimed in claim 8; It is characterized in that; Said accumulation of energy oil circuit (51) is provided with the pressure detecting part (58) that detects oil pressure in the energy storage (5), and when pressure reached setting value in the said energy storage (5), said pressure detecting part (58) sent pressure signal;
When said sling system (11) when hoisting, the master controller of said energy-saving hoisting crane sends the signal that hoists;
Said function unit is multiplier (6), and said multiplier (6) is received simultaneously when said pressure signal and said hoists signal, sent the instruction of opening to said electromagnetic valve (57).
10. energy-saving hoisting crane as claimed in claim 9 is characterized in that, said pressure detecting part (58) is a pressure relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103525417A CN102408075A (en) | 2011-11-09 | 2011-11-09 | Energy-saving type crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103525417A CN102408075A (en) | 2011-11-09 | 2011-11-09 | Energy-saving type crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102408075A true CN102408075A (en) | 2012-04-11 |
Family
ID=45910482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103525417A Pending CN102408075A (en) | 2011-11-09 | 2011-11-09 | Energy-saving type crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102408075A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191441A (en) * | 2017-07-27 | 2017-09-22 | 徐州重型机械有限公司 | Hydraulic system, the control method of hydraulic system and engineering machinery |
| CN108373117A (en) * | 2018-01-17 | 2018-08-07 | 浙江麒龙起重机械有限公司 | The energy saving lifting mechanism of container crane |
| CN110921538A (en) * | 2019-12-23 | 2020-03-27 | 三一汽车起重机械有限公司 | Hoisting system and crane |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005138982A (en) * | 2003-11-07 | 2005-06-02 | Hitachi Sumitomo Heavy Industries Construction Crane Co Ltd | Controller of hydraulic winch |
| CN1833990A (en) * | 2005-05-11 | 2006-09-20 | 上海交大神舟汽车设计开发有限公司 | Environment protection hydraulic auxilary power system of hoisting machinery |
| CN101865184A (en) * | 2009-04-14 | 2010-10-20 | 上海汇益液压控制系统工程有限公司 | Direct-drive redundant hydraulic system for servomotor |
| CN102167023A (en) * | 2011-04-09 | 2011-08-31 | 太原理工大学 | Hydraulic retarding braking machine |
-
2011
- 2011-11-09 CN CN2011103525417A patent/CN102408075A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005138982A (en) * | 2003-11-07 | 2005-06-02 | Hitachi Sumitomo Heavy Industries Construction Crane Co Ltd | Controller of hydraulic winch |
| CN1833990A (en) * | 2005-05-11 | 2006-09-20 | 上海交大神舟汽车设计开发有限公司 | Environment protection hydraulic auxilary power system of hoisting machinery |
| CN101865184A (en) * | 2009-04-14 | 2010-10-20 | 上海汇益液压控制系统工程有限公司 | Direct-drive redundant hydraulic system for servomotor |
| CN102167023A (en) * | 2011-04-09 | 2011-08-31 | 太原理工大学 | Hydraulic retarding braking machine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191441A (en) * | 2017-07-27 | 2017-09-22 | 徐州重型机械有限公司 | Hydraulic system, the control method of hydraulic system and engineering machinery |
| CN108373117A (en) * | 2018-01-17 | 2018-08-07 | 浙江麒龙起重机械有限公司 | The energy saving lifting mechanism of container crane |
| CN108373117B (en) * | 2018-01-17 | 2019-07-23 | 浙江麒龙起重机械有限公司 | The energy saving lifting mechanism of container crane |
| CN110921538A (en) * | 2019-12-23 | 2020-03-27 | 三一汽车起重机械有限公司 | Hoisting system and crane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100427771C (en) | Energy saving hydraulic lifting system of variable hydraulic counterweight | |
| CN201321358Y (en) | Crane hoist control system and crane | |
| CN103470544A (en) | Energy-saving hoisting system of hydraulic crane | |
| CN102336372A (en) | Hydraulic control system of crane and winch device of crane | |
| CN101403405A (en) | Energy recovery system of hybrid single-pump multi-execution component engineering machinery | |
| CN101580207A (en) | Hydraulic energy saving system for harbour crane | |
| KR20070085056A (en) | Lifting machinery of two reel differential type for two 40 feet container shore crane | |
| CN203463385U (en) | Energy-saving hoisting system of hydraulic crane | |
| CN102408075A (en) | Energy-saving type crane | |
| CN203294993U (en) | Energy-saving lifting device of steel wire rope type lifting machine for construction | |
| CN205559389U (en) | Energy recuperation system and hoist hydraulic system are transferred to hoist | |
| CN115744699A (en) | Double-power winch system, control method and piling machinery | |
| CN201132745Y (en) | Hydraulic lifting device for column crane | |
| CN102381539B (en) | Multifunctional tower crane elevator | |
| CN201288721Y (en) | Energy recovery system of mixed power single-valve multiple actuator assembly | |
| CN206720617U (en) | The high rotating speed energy-storage booster of crane and lifting mechanism | |
| CN201825681U (en) | Crane and hydraulic control system of hoisting device thereof | |
| CN202440264U (en) | Electrical-energy type emergency back-up load releasing device of cane with power off | |
| CN2458271Y (en) | Crane counterweight type balance rotating force moment energy saver | |
| CN202054561U (en) | Hydraulic closed-type constant tension device | |
| CN201746870U (en) | Hydraulic hybrid power device of excavator | |
| CN103569876A (en) | Diesel hydraulic lifting machine | |
| CN102602852B (en) | Hydraulic hybrid stacking machine | |
| CN101220586A (en) | Energy-saving safety device for platform elevation and subsidence | |
| CN203568750U (en) | Overspeed-preventing control device of gantry hoist lifting mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120411 |