CN104265717A - Hydraulic system for recycling rotary braking energy and device - Google Patents
Hydraulic system for recycling rotary braking energy and device Download PDFInfo
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- CN104265717A CN104265717A CN201410463526.3A CN201410463526A CN104265717A CN 104265717 A CN104265717 A CN 104265717A CN 201410463526 A CN201410463526 A CN 201410463526A CN 104265717 A CN104265717 A CN 104265717A
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- 238000004064 recycling Methods 0.000 title abstract 4
- 230000009471 action Effects 0.000 claims abstract description 10
- 230000008859 change Effects 0.000 claims description 52
- 239000012530 fluid Substances 0.000 claims description 9
- 239000000446 fuel Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 19
- 239000002828 fuel tank Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000001172 regenerating effect Effects 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 208000001953 Hypotension Diseases 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000036543 hypotension Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/14—Energy-recuperation means
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
Disclosed is a hydraulic system for recycling the rotary braking energy. The braking energy of a rotary motor is recycled towards an energy accumulator through a hydraulic control two-position two-way reversing valve; the control oil of a pilot control valve is switched to a corresponding reversing valve for reversing through a first electromagnetic two-position four-way reversing valve and a second electromagnetic two-position four-way reversing valve; the reversing action of the first electromagnetic two-position four-way reversing valve and the second electromagnetic two-position four-way reversing valve is controlled by a controller, wherein the pressure of the energy accumulator is determined through the controller. According to the hydraulic system for recycling the rotary braking energy and a device, the energy recycling and utilization is achieved in a full-automatic mode and the existing hydraulic systems such as the rotary motor and a main control valve do not need to be modified; added elements are less, the technology is mature, and the price is low; only the braking energy of the rotary motor is recycled and the energy output through the existing rotary hydraulic system is not received through the energy accumulator; when the rotary motor is started, the energy of the energy accumulator is utilized first, then the pump output energy is automatically switched and utilized, and accordingly the mutual interference is not produced.
Description
Technical field
The present invention relates to the engineering machinery with Control in Hydraulic Rotation System, particularly there is the hydraulic system and device that reclaim rotary braking energy.
Background technique
In the excavation entrucking operating mode that hydraulic shovel the most often carries out, the process that each circulation has twice revolution to start and brake.As shown in Figure 1, be all adopt relief valve as back pressure without exception during rotary braking, make rotary decelerating until stop.In the process of this braking, hydraulic oil is through relief valve overflow, and namely pivotal kinetic transformation is that the heat energy of hydraulic oil is consumed.
Summary of the invention
Object of the present invention is exactly for the irretrievable problem of current hydraulic shovel rotary braking energy, and proposes a kind of rotary braking energy that reclaims, and makes the energy applications of recovery in turning round the hydraulic system with recovery rotary braking energy and device that start
Solution of the present invention is such:
A kind of have the hydraulic system reclaiming rotary braking energy, wherein control the first hydraulic control three position four-way directional control valve by pilot-actuated valve and provide working pressure oil to rotary motor, it is characterized in that: oil-feed port A and B of described first hydraulic control three position four-way directional control valve is respectively arranged with the oil feed line simultaneously receiving accumulator, first one-way valve, the second one-way valve are set respectively in each oil feed line, to ensure that the unidirectional fuel feeding of oil-feed port A or B is to accumulator, hydraulic control bi-bit bi-pass selector valve is provided with, for switching oil feed line in accumulator oil feed line; Oil-feed port A and B of described first hydraulic control three position four-way directional control valve is respectively arranged with the oil feed line simultaneously receiving the second hydraulic control three position four-way directional control valve, the P mouth of the second hydraulic control three position four-way directional control valve is communicated with accumulator by the 3rd one-way valve, controls accumulator unidirectional to rotary motor fuel feeding by oil-feed port A or B by the second hydraulic control three position four-way directional control valve; 2 mouthfuls of described pilot-actuated valve are connected with guide's high selector relay and the first electromagnetism two-position four way change valve simultaneously, switch the b mouth of connection first hydraulic control three position four-way directional control valve or the b mouth of connection the second hydraulic control three position four-way directional control valve by the first electromagnetism two-position four way change valve by 2 of pilot-actuated valve mouthfuls; 1 mouthful of described pilot-actuated valve is connected with guide's high selector relay and the second electromagnetism two-position four way change valve simultaneously, switches a mouth of connection first hydraulic control three position four-way directional control valve or a mouth of connection the second hydraulic control three position four-way directional control valve by the second electromagnetism two-position four way change valve by 1 of pilot-actuated valve mouthful; Described guide's high selector relay output oil port is connected with the control port X of hydraulic control bi-bit bi-pass selector valve; The first described electromagnetism two-position four way change valve and the commutation action of the second electromagnetism two-position four way change valve are controlled by the controller measured energy storage pressure.
Technological scheme also comprises more specifically: in accumulator oil feed line, be provided with the pressure transducer detecting accumulator fluid pressure, and described controller receives the signal of pressure transducer and the commutation action of the first electromagnetism two-position four way change valve and the second electromagnetism two-position four way change valve according to setting numerical control.
A kind of device with the hydraulic system reclaiming rotary braking energy, comprise hydraulic control bi-bit bi-pass selector valve, the second hydraulic control three position four-way directional control valve, the first electromagnetism two-position four way change valve, the second electromagnetism two-position four way change valve, guide's high selector relay, accumulator, described accumulator one tunnel is communicated with hydraulic control bi-bit bi-pass selector valve, and the 3rd one-way valve of separately leading up to is communicated with the second hydraulic control three position four-way directional control valve; The A mouth of described hydraulic control bi-bit bi-pass selector valve is communicated with external oil-feed port A, B respectively by the first one-way valve, the second one-way valve; A1, B1 hydraulic fluid port of the second described hydraulic control three position four-way directional control valve is communicated with external oil-feed port A, B respectively; The P mouth of described first electromagnetism two-position four way change valve connects external pilot-actuated valve 2 mouthfuls, and its b mouth is communicated with the b mouth of external first hydraulic control three position four-way directional control valve, and its a mouth is communicated with the b mouth of the second hydraulic control three position four-way directional control valve; The P mouth of described second electromagnetism two-position four way change valve connects 1 mouthful of external pilot-actuated valve, and its b mouth is communicated with a mouth of external first hydraulic control three position four-way directional control valve, and its a mouth is communicated with the second hydraulic control three position four-way directional control valve a mouth; Described guide's high selector relay input hydraulic fluid port connects 1,2 mouthful of external pilot-actuated valve respectively, and its output oil port is connected with the control port X of hydraulic control bi-bit bi-pass selector valve; The first described electromagnetism two-position four way change valve is connected external control mouth with the control end of the second electromagnetism two-position four way change valve.
Advantage of the present invention is:
1, energy regenerating/utilization is automatically completed;
2, without the need to revising the existing hydraulic system such as rotary motor and main control valve;
3, increase element less, technology is more ripe, cheap;
4, accumulator only reclaims rotary motor braking energy, and does not receive the energy of existing Hydraulic slewing system output;
5, rotary motor starts first use accumulator energy, then the use pump that automatically switches exports energy, non-interference.
Accompanying drawing explanation
Fig. 1 is existing Hydraulic slewing system schematic diagram.
Fig. 2 is the schematic diagram of rotary braking energy regenerating in the embodiment of the present invention/utilize system.
In accompanying drawing, the detail of each parts is as follows:
10-reclaims rotary braking energy system, 11-rotary motor assembly, 12-first hydraulic control three position four-way directional control valve, the former pump of 13-, 14-pilot-actuated valve, 15-rotary braking energy recycle device, 16-accumulator, 17-pressure transducer, 18-controller;
111-rotary motor, 112-first repairing one-way valve, 113-second repairing one-way valve, 114-first relief valve, 115-second relief valve;
151-second hydraulic control three position four-way directional control valve, 152-hydraulic control bi-bit bi-pass selector valve, 153-second one-way valve, 154-first one-way valve, 155-the 3rd one-way valve, 156-first electromagnetism two-position four way change valve, 157-second electromagnetism two-position four way change valve, 158-guide's high selector relay.
Embodiment
Of the present invention have reclaim rotary braking energy hydraulic system 10 as shown in Figure 2, oil-feed port A and B of the first hydraulic control three position four-way directional control valve 12 is respectively arranged with the oil feed line simultaneously receiving accumulator 16, first one-way valve 154, second one-way valve 153 is set respectively in each oil feed line, to ensure that the unidirectional fuel feeding of oil-feed port A or B is to accumulator 16, hydraulic control bi-bit bi-pass selector valve 152 is provided with, for switching oil feed line in accumulator 16 oil feed line; First liquid is respectively arranged with the oil feed line simultaneously receiving the second hydraulic control three position four-way directional control valve 151 by oil-feed port A and B of three position four-way directional control valve 12, the P mouth of the second hydraulic control three position four-way directional control valve 151 is communicated with accumulator 16 by the 3rd one-way valve 155, controls accumulator 16 unidirectional to rotary motor fuel feeding by oil-feed port A or B by the second hydraulic control three position four-way directional control valve 151; 2 mouthfuls of pilot-actuated valve 14 are connected with guide's high selector relay 158 and the first electromagnetism two-position four way change valve 156 simultaneously, switch the b mouth of connection first hydraulic control three position four-way directional control valve 12 or the b mouth of connection the second hydraulic control three position four-way directional control valve 151 by the first electromagnetism two-position four way change valve 156 by 2 of pilot-actuated valve 14 mouthfuls; 1 mouthful of pilot-actuated valve 14 is connected with guide's high selector relay 158 and the second electromagnetism two-position four way change valve 157 simultaneously, switches a mouth of connection first hydraulic control three position four-way directional control valve 12 or a mouth of connection the second hydraulic control three position four-way directional control valve 151 by the second electromagnetism two-position four way change valve 157 by 1 of pilot-actuated valve 14 mouthful; Guide's high selector relay 158 output oil port is connected with the control port X of hydraulic control bi-bit bi-pass selector valve 152; The commutation action of the first electromagnetism two-position four way change valve 156 and the second electromagnetism two-position four way change valve 157 is controlled by the controller 18 measured accumulator 16 pressure.
The t mouth of the first electromagnetism two-position four way change valve 156 is communicated with fuel tank, and the t mouth of the second electromagnetism two-position four way change valve 157 is communicated with fuel tank.
In accumulator oil feed line, be provided with the pressure transducer 17 detecting accumulator 16 fluid pressure, described controller 18 receives the signal of pressure transducer 17 and the commutation action of the first electromagnetism two-position four way change valve 156 and the second electromagnetism two-position four way change valve 157 according to setting numerical control.
Have employed above-mentioned rotary braking energy-recuperation system, hydraulic oil flows from the A to B of rotary motor 111, when revolution operation stops, namely pilot-actuated valve 14 is without Output pressure, first hydraulic control three position four-way directional control valve 12 of hydraulic shovel or the second hydraulic control three position four-way directional control valve 151 of rotary braking energy recycle device 15 reset, revolution starts braking, but due to inertia, revolution maintains former direction and continues to rotate, oil circuit B pressure increases, and through the second one-way valve 153 of rotary braking energy recycle device 15, hydraulic control bi-bit bi-pass selector valve 152, liquid is rushed to accumulator 16, revolution stopping and accumulator rush liquid and complete.When exporting pilot pressure oil for 1 mouthful of operated pilot control valve 14, if controller 18 judges that accumulator 16 can release pressure, the second electromagnetism two-position four way change valve 157 is made to be operated in right position, pilot pressure is through the P mouth of the second electromagnetism two-position four way change valve 157, P, the A through a mouth to the second hydraulic control three six-way transfer valves 151, direction rotates from A to B to drive rotary motor 111,1 mouthful of pilot pressure exported of pilot-actuated valve 14 is through guide's high selector relay 158 simultaneously, controls hydraulic control bi-bit bi-pass selector valve 152 and is operated in left position.Until after accumulator 16 hypotension, controller 18 controls the second electromagnetism two-position four way change valve 157 and resets, 1 mouthful of pilot-actuated valve 14 pilot pressure exported is through the b mouth of the second electromagnetism two-position four way change valve 157, to the control mouth a of the first hydraulic control three position four-way directional control valve 12, the first hydraulic control three position four-way directional control valve 12 is made to be operated in right position, former pump 13 to the A mouth of rotary motor 111, continues the rotation driving rotary motor A to B through the P mouth of the first hydraulic control three position four-way directional control valve 12, A mouth.Above-mentioned is exactly rotary braking energy regenerating, starts the process utilized.
The device with the hydraulic system reclaiming rotary braking energy of the present invention is as the structure in device 15 frame in Fig. 2, comprise hydraulic control bi-bit bi-pass selector valve 152, second hydraulic control three position four-way directional control valve 151, first electromagnetism two-position four way change valve 156, second electromagnetism two-position four way change valve 157, guide's high selector relay 158, accumulator 16 interface, described accumulator 16 interface one tunnel is communicated with hydraulic control bi-bit bi-pass selector valve 152, and the 3rd one-way valve 155 of separately leading up to is communicated with the second hydraulic control three position four-way directional control valve 151; The A mouth of described hydraulic control bi-bit bi-pass selector valve 152 is communicated with external oil-feed port A, B respectively by the first one-way valve 154, second one-way valve 153; A1, B1 hydraulic fluid port of the second described hydraulic control three position four-way directional control valve 151 is communicated with external oil-feed port A, B respectively; The P mouth of described first electromagnetism two-position four way change valve 156 connects 2 mouthfuls of external pilot-actuated valve 14, and its b mouth is communicated with the b mouth of the first hydraulic control three position four-way directional control valve 12, and its a mouth is communicated with the b mouth of the second hydraulic control three position four-way directional control valve 151; The P mouth of described second electromagnetism two-position four way change valve 157 connects 1 mouthful of external pilot-actuated valve 14, and its b mouth is communicated with a mouth of external first hydraulic control three position four-way directional control valve 12, and its a mouth is communicated with a mouth of the second hydraulic control three position four-way directional control valve 151; Described guide's high selector relay 158 inputs 1,2 mouthful that hydraulic fluid port connects external pilot-actuated valve 14 respectively, and its output oil port is connected with the control port X of hydraulic control bi-bit bi-pass selector valve 152; The first described electromagnetism two-position four way change valve 156 is connected external control mouth with the control end of the second electromagnetism two-position four way change valve 157; The t mouth of the first electromagnetism two-position four way change valve 156 is communicated with fuel tank, and the t mouth of the second electromagnetism two-position four way change valve 157 is communicated with fuel tank.
There is the machine of rotary braking energy regenerating in the present embodiment/utilize system, can when rotary braking recovered energy, utilize this energy when turning round and starting.Reduce the energy consumption of existing hydraulic system, in revolution with in the composite move of other actions, under same power condition, turn round the energy work utilizing accumulator to reclaim, and making other actions of the more Power supply of existing system, the speed of complete machine action is improved, thus improves efficiency.
Claims (3)
1. one kind has the hydraulic system reclaiming rotary braking energy, wherein control the first hydraulic control three position four-way directional control valve (12) by pilot-actuated valve (14) and provide working pressure oil to rotary motor (111), it is characterized in that: oil-feed port A and B of described first hydraulic control three position four-way directional control valve (12) is respectively arranged with the oil feed line simultaneously receiving accumulator (16), first one-way valve (154) is set respectively in each oil feed line, second one-way valve (153), to ensure that the unidirectional fuel feeding of oil-feed port A or B is to accumulator (16), hydraulic control bi-bit bi-pass selector valve (152) is provided with in accumulator (16) oil feed line, for switching oil feed line, described first liquid is respectively arranged with the oil feed line simultaneously receiving the second hydraulic control three position four-way directional control valve (151) by oil-feed port A and B of three position four-way directional control valve (12), the P mouth of the second hydraulic control three position four-way directional control valve (151) is communicated with accumulator (16) by the 3rd one-way valve (155), controls accumulator (16) unidirectional to rotary motor fuel feeding by oil-feed port A or B by the second hydraulic control three position four-way directional control valve (151), 2 mouthfuls of described pilot-actuated valve (14) are connected with guide's high selector relay (158) and the first electromagnetism two-position four way change valve (156) simultaneously, switch the b mouth of connection first hydraulic control three position four-way directional control valve (12) or the b mouth of connection the second hydraulic control three position four-way directional control valve (151) by the first electromagnetism two-position four way change valve (156) by 2 mouthfuls of pilot-actuated valve (14), 1 mouthful of described pilot-actuated valve (14) is connected with guide's high selector relay (158) and the second electromagnetism two-position four way change valve (157) simultaneously, switches a mouth of connection first hydraulic control three position four-way directional control valve (12) or a mouth of connection the second hydraulic control three position four-way directional control valve (151) by the second electromagnetism two-position four way change valve (157) by 1 mouthful of pilot-actuated valve (14), described guide's high selector relay (158) output oil port is connected with the control port X of hydraulic control bi-bit bi-pass selector valve (152), the first described electromagnetism two-position four way change valve (156) and the commutation action of the second electromagnetism two-position four way change valve (157) are controlled by the controller (18) measured accumulator (18) pressure.
2. according to claim 1 have the hydraulic system reclaiming rotary braking energy, it is characterized in that: be provided with in accumulator oil feed line and detect the pressure transducer (17) of accumulator (16) fluid pressure, described controller (18) receives the signal of pressure transducer (17) and the commutation action of the first electromagnetism two-position four way change valve (156) and the second electromagnetism two-position four way change valve (157) according to setting numerical control.
3. the device for system described in claim 1, it is characterized in that: comprise hydraulic control bi-bit bi-pass selector valve (152), the second hydraulic control three position four-way directional control valve (151), the first electromagnetism two-position four way change valve (156), the second electromagnetism two-position four way change valve (157), guide's high selector relay (158), accumulator (16) interface, described accumulator (16) interface one tunnel is communicated with hydraulic control bi-bit bi-pass selector valve (152), and the 3rd one-way valve (155) of separately leading up to is communicated with the second hydraulic control three position four-way directional control valve (151); The A mouth of described hydraulic control bi-bit bi-pass selector valve (152) is communicated with external oil-feed port A, B respectively by the first one-way valve (154), the second one-way valve (153); A1, B1 hydraulic fluid port of the second described hydraulic control three position four-way directional control valve (151) is communicated with external oil-feed port A, B respectively; The P mouth of described first electromagnetism two-position four way change valve (156) connects external pilot-actuated valve (14) 2 mouthfuls, and its b mouth is communicated with the b mouth of external first hydraulic control three position four-way directional control valve (12), and its a mouth is communicated with the b mouth of the second hydraulic control three position four-way directional control valve (151); The P mouth of described second electromagnetism two-position four way change valve (157) connects 1 mouthful of external pilot-actuated valve (14), and its b mouth is communicated with a mouth of external first hydraulic control three position four-way directional control valve (12), and its a mouth is communicated with the second hydraulic control three position four-way directional control valve (151) a mouth; Described guide's high selector relay (158) input hydraulic fluid port connects 1,2 mouthful of external pilot-actuated valve (14) respectively, and its output oil port is connected with the control port X of hydraulic control bi-bit bi-pass selector valve (152); The first described electromagnetism two-position four way change valve (156) is connected external control mouth with the control end of the second electromagnetism two-position four way change valve (157).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410463526.3A CN104265717B (en) | 2014-09-12 | There is hydraulic system and the device reclaiming rotary braking energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410463526.3A CN104265717B (en) | 2014-09-12 | There is hydraulic system and the device reclaiming rotary braking energy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104265717A true CN104265717A (en) | 2015-01-07 |
| CN104265717B CN104265717B (en) | 2017-01-04 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595292A (en) * | 2015-02-05 | 2015-05-06 | 长安大学 | Rotary drilling rig main winch system based on energy recovery of energy accumulator |
| CN105220730A (en) * | 2015-09-24 | 2016-01-06 | 徐州徐工挖掘机械有限公司 | A kind of excavator hydraulic energy recycle device |
| CN105257606A (en) * | 2015-11-03 | 2016-01-20 | 山东常林机械集团股份有限公司 | Energy charging and discharging system and energy charging and discharging method of energy accumulator |
| CN106395514A (en) * | 2016-11-01 | 2017-02-15 | 湖南科技大学 | Method and device for realizing dynamic balance, energy saving and self-weight requirement reduction of traction elevator |
| CN107061428A (en) * | 2017-01-24 | 2017-08-18 | 王安基 | Energy regenerating reuse means and energy recycling system |
| CN107687453A (en) * | 2017-09-15 | 2018-02-13 | 太原理工大学 | Loading machine action potential recycling system |
| CN111396378A (en) * | 2020-04-09 | 2020-07-10 | 大连理工大学 | Motor-driven hydraulic system for crane luffing mechanism and method of operation thereof |
| CN117072505A (en) * | 2023-10-18 | 2023-11-17 | 山河智能特种装备有限公司 | Stokehold equipment and energy-saving hydraulic walking closed system thereof |
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| US7926265B2 (en) * | 2005-12-23 | 2011-04-19 | Bosch Rexroth Ag | Hydrostatic drive |
| CN202577437U (en) * | 2012-04-19 | 2012-12-05 | 华南理工大学 | Rotary energy-saving system of hydraulic excavator |
| CN102979133A (en) * | 2012-11-26 | 2013-03-20 | 柳州柳工挖掘机有限公司 | Rotary brake energy recycling device of hydraulic excavator |
| US20140007565A1 (en) * | 2011-05-02 | 2014-01-09 | Kobelco Construction Machinery Co., Ltd. | Slewing type working machine |
| CN103832416A (en) * | 2012-11-26 | 2014-06-04 | 柳州柳工挖掘机有限公司 | Rotation braking energy reuse device for hydraulic machines |
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| US7926265B2 (en) * | 2005-12-23 | 2011-04-19 | Bosch Rexroth Ag | Hydrostatic drive |
| US20140007565A1 (en) * | 2011-05-02 | 2014-01-09 | Kobelco Construction Machinery Co., Ltd. | Slewing type working machine |
| CN103547741A (en) * | 2011-05-02 | 2014-01-29 | 神钢建设机械株式会社 | Rotation-type working machine |
| CN202577437U (en) * | 2012-04-19 | 2012-12-05 | 华南理工大学 | Rotary energy-saving system of hydraulic excavator |
| CN102979133A (en) * | 2012-11-26 | 2013-03-20 | 柳州柳工挖掘机有限公司 | Rotary brake energy recycling device of hydraulic excavator |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595292A (en) * | 2015-02-05 | 2015-05-06 | 长安大学 | Rotary drilling rig main winch system based on energy recovery of energy accumulator |
| CN105220730A (en) * | 2015-09-24 | 2016-01-06 | 徐州徐工挖掘机械有限公司 | A kind of excavator hydraulic energy recycle device |
| CN105220730B (en) * | 2015-09-24 | 2017-09-29 | 徐州徐工挖掘机械有限公司 | A kind of excavator hydraulic energy recycle device |
| CN105257606A (en) * | 2015-11-03 | 2016-01-20 | 山东常林机械集团股份有限公司 | Energy charging and discharging system and energy charging and discharging method of energy accumulator |
| CN106395514B (en) * | 2016-11-01 | 2018-07-10 | 湖南科技大学 | Towed elevator dynamic equilibrium, the energy saving method and device with reducing dead weight requirement |
| CN106395514A (en) * | 2016-11-01 | 2017-02-15 | 湖南科技大学 | Method and device for realizing dynamic balance, energy saving and self-weight requirement reduction of traction elevator |
| CN107061428A (en) * | 2017-01-24 | 2017-08-18 | 王安基 | Energy regenerating reuse means and energy recycling system |
| CN107687453A (en) * | 2017-09-15 | 2018-02-13 | 太原理工大学 | Loading machine action potential recycling system |
| CN107687453B (en) * | 2017-09-15 | 2019-05-03 | 太原理工大学 | Loading machine action potential recycling system |
| CN111396378A (en) * | 2020-04-09 | 2020-07-10 | 大连理工大学 | Motor-driven hydraulic system for crane luffing mechanism and method of operation thereof |
| CN111396378B (en) * | 2020-04-09 | 2021-03-26 | 大连理工大学 | Motor-driven hydraulic system for crane luffing mechanism and method of operation thereof |
| CN117072505A (en) * | 2023-10-18 | 2023-11-17 | 山河智能特种装备有限公司 | Stokehold equipment and energy-saving hydraulic walking closed system thereof |
| CN117072505B (en) * | 2023-10-18 | 2024-02-13 | 山河智能特种装备有限公司 | Stokehold equipment and energy-saving hydraulic walking closed system thereof |
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Address after: Pull the the Liujiang River city Liuzhou County town Shuangyong road 545100 the Guangxi Zhuang Autonomous Region Applicant after: Liuzhou Liugong Excavators Co.,Ltd. Applicant after: LIUGONG CHANGZHOU MACHINERY Co.,Ltd. Applicant after: GUANGXI LIUGONG MACHINERY Co.,Ltd. Address before: Pull the the Liujiang River city Liuzhou County town Shuangyong road 545100 the Guangxi Zhuang Autonomous Region Applicant before: Liuzhou Liugong Excavators Co.,Ltd. Applicant before: LIUGONG CHANGZHOU EXCVAVTOR Co.,Ltd. Applicant before: GUANGXI LIUGONG MACHINERY Co.,Ltd. |
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Granted publication date: 20170104 |