CN203613592U - Rotation energy recovery control device of hydraulic excavator - Google Patents

Rotation energy recovery control device of hydraulic excavator Download PDF

Info

Publication number
CN203613592U
CN203613592U CN201320636758.5U CN201320636758U CN203613592U CN 203613592 U CN203613592 U CN 203613592U CN 201320636758 U CN201320636758 U CN 201320636758U CN 203613592 U CN203613592 U CN 203613592U
Authority
CN
China
Prior art keywords
valve
oil
outlet
recovery control
overflow
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.)
Active
Application number
CN201320636758.5U
Other languages
Chinese (zh)
Inventor
王振兴
李宗�
秦家升
费树辉
史继江
高见厂
孙本强
李志鹏
郑扬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xuzhou XCMG Excavator Machinery Co Ltd
Original Assignee
Xuzhou XCMG Excavator Machinery Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Xuzhou XCMG Excavator Machinery Co Ltd filed Critical Xuzhou XCMG Excavator Machinery Co Ltd
Priority to CN201320636758.5U priority Critical patent/CN203613592U/en
Application granted granted Critical
Publication of CN203613592U publication Critical patent/CN203613592U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a rotation energy recovery control device of a hydraulic excavator. The rotation energy recovery control device comprises an oil pipeline selecting valve, a direction selecting valve, a sequence valve, a one-way valve and an overflow valve, wherein two oil inlets of the oil pipeline selecting valve are respectively connected with an A opening and a B opening of a rotation motor, an oil outlet of the oil pipeline selecting valve is connected with an inlet of the direction selecting valve, an outlet of the direction selecting valve is connected with an inlet of the sequence valve, an oil drain outlet of the sequence valve is connected with an oil tank, an outlet of the sequence valve and an inlet of the one-way valve are communicated with the overflow valve, an outlet of the one-way valve is connected with an energy storage and utilization device, and an outlet of the overflow valve is connected with the oil tank. According to the rotation energy recovery control device of the hydraulic excavator, disclosed by the utility model, rotation starting energy and brake overflow energy can be recovered on the premise that an original motion performance of the hydraulic excavator cannot be affected, high pressure oil pipelines of an oil inlet and an oil outlet of the rotation motor can be selected by adopting a shuttle valve, the response is fast, and the structure is simple; the recovery of the starting energy and the brake overflow energy can be realized by one device at the same time, fewer components are used, and the pipeline design is simplified.

Description

Hydraulic crawler excavator rotation energy recovery control device
Technical field
This practicality relates to a kind of hydraulic gyration mechanism rotation energy recovery control device, particularly a kind of hydraulic crawler excavator rotation energy recovery control device, and it is applicable to have the hydraulic crawler excavator of Control in Hydraulic Rotation System.
Background technology
Hydraulic crawler excavator is applied widely, and energy consumption is large, and work has strong periodically feature, and the power-saving technology of research hydraulic crawler excavator has very large economic worth and feasibility.Traditional hydraulic crawler excavator is in the time of revolution startup and retarding braking, revolution starts and braking moment is determined by the oil pressure relief that turns round overflow valve setting, in revolution start-up course, the flow providing due to hydraulic pump is greater than the flow of rotary motor needs, thereby can produce revolution startup spill losses; In rotary braking process, produce braking moment by the reverse back pressure of revolution overflow valve and reach braking effect, thereby can produce braking spill losses; Overflow fluid produces a large amount of heat energy, causes excavator hydraulic system heating, reduces hydraulic system performance and life-span.Because excavator work has strong periodicity feature, revolution action is that one is moved very frequently, and therefore its energy loss of bringing is very serious, the energy of loss is carried out to recycling and have very considerable economic benefit.
Publication number is the Chinese patent of CN101736771A, discloses a kind of rotary decelerating and braking energy recovery system of hydraulic excavator, and this energy-recuperation system only reclaims rotary braking overflow energy, does not reclaim revolution and starts overflow energy; Publication number is the Chinese patent of CN102733442A, a kind of hydraulic crawler excavator rotation energy recycling system is disclosed, this system adopts three position three-way change valve respectively forward revolution and the energy of reversed turning to be reclaimed, but the response time of reversal valve will inevitably affect effect and turnability that energy reclaims; Also have some devices in the time that energy reclaims, to utilize energy storage device to set up back pressure as accumulator or energy utilization device as hydraulic motor, the back pressure that this mode is set up is also unstable, will inevitably affect the performance of digger revolving system.
Practical content
This practical purpose is to provide a kind of hydraulic crawler excavator rotation energy recovery control device, and it can start and the overflow energy the automatic recovery of braking procedure revolution, and little to excavator original system performance impact in the time recovering energy.
In order to address the above problem, the technical scheme that this practicality adopts is: a kind of hydraulic crawler excavator rotation energy recovery control device, comprise oil circuit selector valve, directional selecting valve, sequence valve, one way valve and overflow valve, two oil-ins of described oil circuit selector valve are connected with A mouth and the B mouth of rotary motor respectively, the oil-out of oil circuit selector valve is connected with the entrance of directional selecting valve, the outlet of described directional selecting valve is connected with the entrance of sequence valve, the drain tap of sequence valve is connected with fuel tank, the outlet of described sequence valve and the entrance of one way valve are connected with overflow valve, the outlet of described one way valve connects stored energy use device, the outlet connected tank of described overflow valve.
As the further improvement of this practicality, described oil circuit selector valve is shuttle valve.
As the further improvement of this practicality, described oil circuit selector valve also can be made up of two one way valves.
As the further improvement of this practicality, described directional selecting valve is solenoid operated directional valve or pilot operated directional control valve or electric proportional reversing valve or hand-operated direction valve.
As the further improvement of this practicality, described one way valve also can be selected the logic valve with reverse cutoff function.
As the further improvement of this practicality, described overflow valve is arranged on stored energy use device.
This practical beneficial effect is: revolution is started to overflow energy to this device and rotary braking overflow energy all can reclaim, and this rotation energy recovery control device can not affect under the prerequisite of the former performance of hydraulic crawler excavator, reclaim that revolution starts and braking overflow energy; Adopt oil circuit selector valve to select the high-pressure oil passage of rotary motor oil inlet and outlet, response is fast, simple in structure; The foundation of system back pressure is set up by sequence valve operating pressure, and sequence valve operating pressure is set according to former rotary system oil pressure relief, makes rotary system property retention constant; Add directional selecting valve, can more easily energy-recuperation system be enabled or be closed, be beneficial to and realize automation, this practicality just can realize the recovery that digger revolving is started and braked overflow energy simultaneously by a device, changed the unicity that existing digger revolving overflow energy reclaims, the components and parts that this device adopts are few, simplify circuit design, reclaimed and play a good role for overflow energy, greatly reduced oil mass waste, save cost, and be beneficial to operation.
Accompanying drawing explanation
Fig. 1 is this practical structural representation;
Wherein: 1, oil circuit selector valve, 2, directional selecting valve, 3, sequence valve, 4, one way valve, 5, overflow valve.
The specific embodiment
Below in conjunction with specific embodiment and accompanying drawing, this practicality is described in further detail.
For the preferred shuttle valve of oil circuit selector valve 1 this case, the preferred solenoid operated directional valve of directional selecting valve 2 does following statement to this case:
As shown in Figure 1, a kind of hydraulic crawler excavator rotation energy recovery control device, comprises oil circuit selector valve 1, directional selecting valve 2, sequence valve 3, one way valve 4 and overflow valve 5, two oil-ins of described shuttle valve are connected with A mouth and the B mouth of rotary motor respectively, the oil-out of shuttle valve is connected with the entrance of solenoid operated directional valve, the outlet of described solenoid operated directional valve is connected with the entrance of sequence valve 3, the drain tap of sequence valve 3 is connected with fuel tank, the entrance of the outlet of described sequence valve 3 and one way valve 4 is connected with overflow valve 5, the outlet of described one way valve 4 connects stored energy use device, the outlet connected tank of described overflow valve 5, described overflow valve 5 is arranged on stored energy or use device, by on the overflow valve 5 person's use device that is arranged on stored energy, its compact conformation, simply, do not need extra linkage.
In above-described embodiment, described oil circuit selector valve 1 also can be made up of two one way valves, and its effect is that the high-pressure oil passage of rotary motor oil inlet and outlet is selected;
Described directional selecting valve 2 also can replace to directional selecting valve, electric proportional reversing valve or hand-operated direction valve, and its effect is to enable or close rotation energy recovery control device, is convenient to realize automatic control;
The opening pressure of described sequence valve 3 and operating characteristic and former rotary system overflow opening pressure and oil pressure relief characteristic are approximate, can guarantee to add energy recovery control device after systematic function do not reduce;
Described one way valve 4 can be selected the logic valve with reverse cutoff function, and its effect is to prevent that the hydraulic oil backflow of reclaiming from damaging or harmful effect system;
The effect of described overflow valve 5 is maximum pressures that fluid is reclaimed in restriction, protection system.
This practical operating principle is:
This rotation energy recovery control device can not affect under the prerequisite of the former performance of hydraulic crawler excavator, reclaims revolution startup and braking overflow energy.In the rotation energy recovery control device course of work, directional selecting valve 2 is opened, in the time that revolution starts, because rotary motor flow is less than POF, therefore rotary motor inlet pressure can raise, now rotary motor entrance hydraulic oil is communicated with sequence valve 3 entrances by oil circuit selector valve 1, directional selecting valve 2, in the time that hydraulic oil pressure reaches sequence valve 3 set pressure, sequence valve 3 is opened, the unnecessary high-pressure oil flow of system enters energy storage device or energy utilization device through sequence valve 3 and one way valve 4, and rotary motor staring torque is guaranteed by sequence valve 3 pressure; In the time of rotary braking, rotary motor is operated in pump operating mode, now rotary motor outlet pressure raises, inlet pressure reduces, rotary motor outlet hydraulic oil is communicated with sequence valve 3 entrances by oil circuit selector valve 1, directional selecting valve 2, in the time that hydraulic oil pressure reaches sequence valve 3 set pressure, sequence valve 3 is opened, the unnecessary high-pressure oil flow of system enters energy storage device or energy utilization device through sequence valve 3 and one way valve 4, rotary motor braking moment is guaranteed by sequence valve 3 pressure, installs maximum pressure recovery and is set up by overflow valve 5.

Claims (8)

1. a hydraulic crawler excavator rotation energy recovery control device, it is characterized in that: comprise oil circuit selector valve (1), directional selecting valve (2), sequence valve (3), one way valve (4) and overflow valve (5), two oil-ins of described oil circuit selector valve (1) are connected with A mouth and the B mouth of rotary motor respectively, the oil-out of oil circuit selector valve (1) is connected with the entrance of directional selecting valve (2), the outlet of described directional selecting valve (2) is connected with the entrance of sequence valve (3), the drain tap of sequence valve (3) is connected with fuel tank, the entrance of the outlet of described sequence valve (3) and one way valve (4) is connected with overflow valve (5), the outlet of described one way valve (4) connects stored energy use device, the outlet connected tank of described overflow valve (5).
2. hydraulic crawler excavator rotation energy recovery control device according to claim 1, is characterized in that: described oil circuit selector valve (1) is shuttle valve.
3. hydraulic crawler excavator rotation energy recovery control device according to claim 1, is characterized in that: described oil circuit selector valve (1) is made up of two one way valves.
4. according to the hydraulic crawler excavator rotation energy recovery control device described in claims 1 to 3 any one, it is characterized in that: described directional selecting valve (2) is solenoid operated directional valve.
5. according to the hydraulic crawler excavator rotation energy recovery control device described in claims 1 to 3 any one, it is characterized in that: described directional selecting valve (2) is pilot operated directional control valve.
6. according to the hydraulic crawler excavator rotation energy recovery control device described in claims 1 to 3 any one, it is characterized in that: described directional selecting valve (2) is electric proportional reversing valve.
7. according to the hydraulic crawler excavator rotation energy recovery control device described in claims 1 to 3 any one, it is characterized in that: described directional selecting valve (2) is hand-operated direction valve.
8. hydraulic crawler excavator rotation energy recovery control device according to claim 1, is characterized in that: described overflow valve (5) is arranged on stored energy use device.
CN201320636758.5U 2013-10-15 2013-10-15 Rotation energy recovery control device of hydraulic excavator Active CN203613592U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320636758.5U CN203613592U (en) 2013-10-15 2013-10-15 Rotation energy recovery control device of hydraulic excavator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320636758.5U CN203613592U (en) 2013-10-15 2013-10-15 Rotation energy recovery control device of hydraulic excavator

Publications (1)

Publication Number Publication Date
CN203613592U true CN203613592U (en) 2014-05-28

Family

ID=50766248

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320636758.5U Active CN203613592U (en) 2013-10-15 2013-10-15 Rotation energy recovery control device of hydraulic excavator

Country Status (1)

Country Link
CN (1) CN203613592U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103556669A (en) * 2013-10-15 2014-02-05 徐州徐工挖掘机械有限公司 Swing energy recovery control device of hydraulic excavator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103556669A (en) * 2013-10-15 2014-02-05 徐州徐工挖掘机械有限公司 Swing energy recovery control device of hydraulic excavator
WO2015055042A1 (en) * 2013-10-15 2015-04-23 徐州徐工挖掘机械有限公司 Rotatory energy recycling control device for hydraulic excavator
US10287750B2 (en) 2013-10-15 2019-05-14 Xuzhou Xugong Excavator Machinery Co., Ltd Rotatory energy recycling control device for hydraulic excavator

Similar Documents

Publication Publication Date Title
CN103556669A (en) Swing energy recovery control device of hydraulic excavator
CN102733442B (en) Gyration energy recycling system of hydraulic excavator
CN103628519B (en) A kind of digger revolving brake energy recovering system
CN204199367U (en) The excavator control system of oil-liquid hybrid electric
CN203531041U (en) Excavator slewing system based on energy recovery of energy accumulator
CN104328817B (en) A kind of energy-recuperation system
CN204001036U (en) A kind of revolution energy conserving system and engineering machinery
CN104314131A (en) Excavator control system with oil hybrid power
CN203613592U (en) Rotation energy recovery control device of hydraulic excavator
CN103469835A (en) Excavator oil-liquid hybrid power control system with functions of energy recovery and conversion
CN205876871U (en) Automatic actuating system of retrieving and recycling of engineering machine tool revolving stage energy
CN104405004A (en) Rotating overflow energy recycling system of hydraulic excavator
CN201407049Y (en) Energy-saving shield cutterhead closed-loop hydraulic control system adopting grouped energy accumulator
CN206052834U (en) Excavator rotation energy is reclaimed and utilizes system
CN106400874A (en) Energy accumulator based excavator rotating mechanism energy recovery system and method
CN106988374A (en) A kind of excavator energy regenerating oil-supplementing system and its method
CN206015777U (en) Hydraulic crawler excavator turns round energy conserving system
CN103832416B (en) Hydraulic machinery rotary braking energy reuse device
CN102721038A (en) Closed condensed water recovery system
CN202101308U (en) Automatic recycling system for waste heat of heat supply
CN204266287U (en) A kind of digger revolving brake energy recovering system
CN204437368U (en) A kind of fluid COMM communication
CN105545831B (en) A kind of double dragline structure energy-conservation coordinated control systems of sack filling machine
CN206015778U (en) Excavator rotation energy recovery system
CN103758173A (en) Electro-hydraulic hybrid method for excavator and excavator thereof

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model