CN205804462U - Excavator energy conserving system - Google Patents

Excavator energy conserving system Download PDF

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Publication number
CN205804462U
CN205804462U CN201620688777.6U CN201620688777U CN205804462U CN 205804462 U CN205804462 U CN 205804462U CN 201620688777 U CN201620688777 U CN 201620688777U CN 205804462 U CN205804462 U CN 205804462U
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CN
China
Prior art keywords
valve
motor
switch valve
accumulator
transfer case
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.)
Withdrawn - After Issue
Application number
CN201620688777.6U
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Chinese (zh)
Inventor
李宗�
费树辉
张宏
秦家升
王振兴
董永平
金月峰
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.)
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Priority to CN201620688777.6U priority Critical patent/CN205804462U/en
Application granted granted Critical
Publication of CN205804462U publication Critical patent/CN205804462U/en
Withdrawn - After Issue legal-status Critical Current
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Abstract

The open a kind of excavator energy conserving system of this utility model, mainly motor loop is driven to constitute by engine direct wind dispelling fan drive circuit, accumulator control fan motor loop and accumulator control, including fuel tank, volume adjustable hydraulic pump, the first variable hydraulic motor, quantitative hydraulic pump, electromotor, transfer case, fan, the second variable displacement motor, the first switch valve, first direction valve, second direction valve, second switch valve, third direction valve, pressure valve and accumulator, engine direct wind dispelling fan drive circuit is made up of electromotor, transfer case, fan and first direction valve.This utility model directly drives the hydraulic motor of heat radiation by will be stored in recovering energy in accumulator, and middle without other links, transmission efficiency is high;, do not couple with operating cylinder and motor meanwhile, do not affect complete machine handling, improve the utilization recovered energy.

Description

Excavator energy conserving system
Technical field
This utility model relates to a kind of energy-saving control system, specifically a kind of excavator energy conserving system, belongs to engineering machinery Shot-blast apparatus energy-conserving control technology field.
Background technology
Developing rapidly along with socioeconomic, energy shortage and problem of environmental pollution are on the rise, and each state will reduce the most Energy loss, protection environment are brought into schedule.Meanwhile, Energy Efficiency Ratio is one of key parameter of the hydraulic crawler excavator market competition, therefore The Study on energy saving of hydraulic crawler excavator and apply particularly necessary.
At present, country's 13 science and technology supporting projects have been listed in oil-liquid hybrid electric technical research in, as based on excavating function The hydraulic hybrid Study on energy saving of amount recovery and application, mainly can be carried out excavator swing arm potential energy, rotary braking Reclaiming, the energy of recovery is stored by accumulator.The energy recycling reclaimed generally has directly or indirectly two kinds.It is directly used in and drives Dynamic operating cylinder or motor, although transmission efficiency is high, but have impact on complete machine handling.Indirect utilization refers to that the energy reclaimed passes through Servo-motor discharges, and jointly drives hydraulic pressure main pump with electromotor, and this exergonic mode is handling without shadow to complete machine Ringing, but transmission link is many, energy utilization efficiency is low.
Summary of the invention
The problem existed for above-mentioned prior art, this utility model provides a kind of excavator energy conserving system, can will store Recovering energy in accumulator directly drives the hydraulic motor work of heat radiation, and middle without other links, transmission efficiency is high;With Time, do not couple with operating cylinder and motor, do not affect complete machine handling, the energy efficient of recovery can be made to utilize.
To achieve these goals, a kind of excavator energy conserving system that this utility model uses, is mainly driven by engine direct Fan drive circuit, accumulator control fan motor loop and accumulator control drive motor loop to constitute, including fuel tank, variable delivery hydraulic Pump, the first variable hydraulic motor, quantitative hydraulic pump, electromotor, transfer case, fan, the second variable displacement motor, the first switch valve, One direction valve, second direction valve, second switch valve, third direction valve, pressure valve and accumulator, described engine direct wind dispelling fan passes Dynamic loop is made up of electromotor, transfer case, fan and first direction valve, described accumulator control fan motor loop by accumulator, First switch valve, the second variable displacement motor and second direction valve are constituted, described accumulator control drive motor loop by accumulator, second Switch valve, third direction valve and the first variable hydraulic motor are constituted, fuel tank and volume adjustable hydraulic pump, the first variable hydraulic motor phase Even, volume adjustable hydraulic pump is connected with the input interface of electromotor, and the output interface of electromotor is connected with the A mouth of transfer case;Transfer case B mouth be connected with the delivery outlet of first direction valve, the C mouth of transfer case and the second variable displacement motor are connected, the D mouth of transfer case and fan Connect;The A mouth of the second variable displacement motor and the delivery outlet of the first switch valve are connected, the input port of the first switch valve and accumulator phase Even, the pilot control opening of the first switch valve is connected with the delivery outlet of second direction valve;The input port of second direction valve and quantitative liquid The delivery outlet of press pump is connected;The delivery outlet of quantitative hydraulic pump is connected with the input port of first direction valve, the output of first direction valve Mouth is connected with the B mouth of transfer case;Accumulator is connected with input port, the pressure valve of second switch valve, the delivery outlet of second switch valve Being connected with the input port of the first variable hydraulic motor, the mouth that controls of second switch valve is connected with the delivery outlet of third direction valve;The The input port of three direction valves is connected with the delivery outlet of quantitative hydraulic pump.
Preferably, described transfer case includes that controllable clutch, the first gear, the second gear, axle and bearing are constituted, controlled from Clutch is hydraulic clutch or electric control gear, and first direction valve is the external control device of controllable clutch, for electro hydraulic valve or pure Electric control gear.
Preferably, described accumulator drives the first variable hydraulic motor to realize the independent control of switch by second switch valve, Second switch valve is gate-controlled switch valve, has switch valve and non-return valve function, the first variable hydraulic motor according to actual needs, for Fixed displacement motor or variable displacement motor form, integrate with volume adjustable hydraulic pump, or is arranged on the power taking mouth of electromotor.
Preferably, described second variable displacement motor and transfer case direct connection, with the hydraulic motor quantity of transfer case direct connection according to reality Border needs to arrange, and the first switch valve is gate-controlled switch valve, has switch valve and non-return valve function.
Preferably, described volume adjustable hydraulic pump, the first variable hydraulic motor and quantitative hydraulic pump integrate.
Preferably, described transfer case and the second variable displacement motor integrate.
Compared with prior art, this utility model can will be stored in recovering energy in accumulator and directly drive the liquid of heat radiation Pressure motor works, and middle without other links, transmission efficiency is high;, do not couple with operating cylinder and motor meanwhile, do not affect whole Machine handling, can make the energy efficient of recovery utilize
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, fuel tank, 2, volume adjustable hydraulic pump, the 3, first variable hydraulic motor, 4, quantitative hydraulic pump, 5, electromotor, 6, Transfer case, 6A, hydraulic clutch, 6B, the first gear, 6C, the second gear, 7, fan, the 8, second variable displacement motor, the 9, first switch Valve, 10, first direction valve, 11, second direction valve, 12, second switch valve, 13, third direction valve, 14, pressure valve, 15, accumulation of energy Device.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings.
As it is shown in figure 1, a kind of excavator energy conserving system, mainly fanned drive circuit, accumulator control wind by engine direct wind dispelling Fan motor loop and accumulator control drive motor loop constitute, including fuel tank 1, volume adjustable hydraulic pump the 2, first variable hydraulic motor 3, Quantitative hydraulic pump 4, electromotor 5, transfer case 6, fan the 7, second variable displacement motor the 8, first switch valve 9, first direction valve 10, second Direction valve 11, second switch valve 12, third direction valve 13, pressure valve 14 and accumulator 15, the fan transmission of described engine direct wind dispelling Loop is made up of electromotor 5, transfer case 6, fan 7 and first direction valve 10, and described accumulator control fan motor loop is by accumulation of energy Device the 15, first switch valve the 9, second variable displacement motor 8 and second direction valve 11 are constituted, and described accumulator control drives motor loop by storing Can device 15, second switch valve 12, third direction valve 13 and the first variable hydraulic motor 3 constitute, fuel tank 1 and volume adjustable hydraulic pump 2, the One variable hydraulic motor 3 is connected, and volume adjustable hydraulic pump 2 is connected with the input interface of electromotor 5, the output interface of electromotor 5 with divide The A mouth of dynamic case 6 connects;The B mouth of transfer case 6 is connected with the delivery outlet of first direction valve 10, the C mouth of transfer case 6 and the second variable Motor 8 is connected, and the D mouth of transfer case 6 is connected with fan 7;The A mouth of the second variable displacement motor 8 and the delivery outlet phase of the first switch valve 9 Even, the input port of the first switch valve 9 is connected with accumulator 15, the pilot control opening of the first switch valve 9 and second direction valve 11 Delivery outlet is connected;The input port of second direction valve 11 is connected with the delivery outlet of quantitative hydraulic pump 4;The delivery outlet of quantitative hydraulic pump 4 Being connected with the input port of first direction valve 10, the delivery outlet of first direction valve 10 is connected with the B mouth of transfer case 6;Accumulator 15 with The input port of second switch valve 12, pressure valve 14 are connected, the delivery outlet of second switch valve 12 and the first variable hydraulic motor 3 defeated Entrance is connected, and the mouth that controls of second switch valve 12 is connected with the delivery outlet of third direction valve 13;The input port of third direction valve 13 It is connected with the delivery outlet of quantitative hydraulic pump 4.
Preferably, described transfer case 6 includes that controllable clutch, the first gear 6B, the second gear 6C, axle and bearing are constituted, Controllable clutch is hydraulic clutch 6A or electric control gear, and first direction valve 10 is the external control device of controllable clutch, for automatically controlled Hydraulic valve or pure electric control gear.
Transfer case 6 inputs connecting port and couples with electromotor 5 and the second variable hydraulic motor 8, transfer case 6 export connecting port with Fan couples, and here, the connecting port of transfer case 6 and hydraulic motor, according to actual match needs, can be one or more connecting port, Hydraulic motor according to actual needs, may be configured as variable or constant displacement hydraulic motor form, additionally, the B mouth of transfer case 6 be hydraulic pressure from Clutch 6A from, close control interface.
Preferably, described accumulator 15 drives the first variable hydraulic motor 3 to realize switch independently by second switch valve 12 Controlling, second switch valve 12 is gate-controlled switch valve, has switch valve and non-return valve function, and the first variable hydraulic motor 3 is according to reality Border needs, and for fixed displacement motor or variable displacement motor form, integrates with volume adjustable hydraulic pump 2, or is arranged on the power taking of electromotor 5 On mouth.
Preferably, described second variable displacement motor 8 and transfer case 6 direct connection, the second variable displacement motor 8 is according to actual needs, permissible For fixed displacement motor or variable displacement motor form, arrange according to actual needs with the hydraulic motor quantity of transfer case 6 direct connection, the first switch Valve 9 is gate-controlled switch valve, has switch valve and non-return valve function.
Preferably, described volume adjustable hydraulic pump the 2, first variable hydraulic motor 3 and quantitative hydraulic pump 4 integrate.
Preferably, described transfer case 6 and the second variable displacement motor 8 integrate.
Work process:
First direction valve 10 obtains electric, and quantitative hydraulic pump 4 output pressure makes hydraulic clutch 6A combine, and electromotor 5 output is dynamic Power directly drives fan 7 to rotate, to control engine water temperature, middle chill temperature and liquid by hydraulic clutch 6A and the first gear 6B Force feed temperature;First direction valve 10 power-off, hydraulic clutch 6A through first direction valve 10 off-load, makes hydraulic clutch 6A by B mouth Disconnecting, second direction valve 11 obtains electric, and quantitative hydraulic pump 4 output pressure makes the first switch valve 9 open, accumulator 15 pressure oil output Liquid, drives the second variable displacement motor 8 to rotate, and the second variable displacement motor 8 is by output shaft, through the second gear 6C, the first gear 6B, drives Fan 7 rotates;First direction valve 10 power-off, second direction valve 11 power-off, third direction valve 13 obtains electric, and hydraulic clutch 6A breaks Opening, the first switch valve 9 cuts out, and second switch valve 12 is opened, accumulator 15 output pressure fluid, drives through second switch valve 12 One variable hydraulic motor 3 rotates, and the first variable hydraulic motor 3 and electromotor 5 drive volume adjustable hydraulic pump 2 jointly, thus drive and dig Pick machine hydraulic system executive component work;First direction valve 10 obtains electric, and quantitative hydraulic pump 4 output pressure makes hydraulic clutch 6A tie Closing, electromotor 5 exports power and directly drives fan 7 to rotate, to control electromotor by hydraulic clutch 6A and the first gear 6B Water temperature, middle chill temperature and hydraulic oil temperature, third direction valve 13 obtains electric, and hydraulic clutch 6A disconnects, and the first switch valve 9 cuts out, the Two switch valves 12 are opened, accumulator 15 output pressure fluid, drive the first variable hydraulic motor 3 to rotate through second switch valve 12, First variable hydraulic motor 3 drives volume adjustable hydraulic pump 2 jointly with electromotor 5, thus drives excavator hydraulic system executive component Work.Refer to Fig. 1.
From said structure, the accumulator in this utility model directly drives fan motor to carry out energy release, transmission Link is minimum, it addition, accumulator control fan motor loop is volumetric speed control, compares valve-controlled motor loop transmission efficiency high.Accumulation of energy Energy management stored by device is efficient, efficiently releases energy not only by accumulator control fan motor loop, meanwhile, for filling Divide to utilize and recovered energy and absorbed new energy, motor loop can be driven to release energy by accumulator control simultaneously.
Furthermore, institute's employing accumulator control fan motor loop, accumulator control drive motor loop and engine direct wind dispelling fan In three kinds of independent control modes of transmission, the fan transmission of engine direct wind dispelling drives motor loop not start with accumulator control simultaneously, So, not only make full use of and recovered energy and absorbed new energy, meanwhile, do not affect complete machine handling.
Finally, the energy stored by accumulator can directly utilize in engine water gentleness hydraulic oil temperature cooling system, transmission Efficiency is high.Making the device utilizing this utility model to be developed, specificity is good, cost performance is high, return period is short, has higher city Field promotional value.

Claims (6)

1. an excavator energy conserving system, it is characterised in that mainly fanned drive circuit, accumulator control fan by engine direct wind dispelling Motor loop and accumulator control drive motor loop to constitute, including fuel tank (1), volume adjustable hydraulic pump (2), the first variable hydraulic motor (3), quantitative hydraulic pump (4), electromotor (5), transfer case (6), fan (7), the second variable displacement motor (8), the first switch valve (9), First direction valve (10), second direction valve (11), second switch valve (12), third direction valve (13), pressure valve (14) and accumulation of energy Device (15),
Described engine direct wind dispelling fan drive circuit is by electromotor (5), transfer case (6), fan (7) and first direction valve (10) structure Becoming, described accumulator control fan motor loop is by accumulator (15), the first switch valve (9), the second variable displacement motor (8) and second party Constituting to valve (11), described accumulator control drives motor loop by accumulator (15), second switch valve (12), third direction valve (13) and the first variable hydraulic motor (3) is constituted,
Fuel tank (1) is connected with volume adjustable hydraulic pump (2), the first variable hydraulic motor (3), volume adjustable hydraulic pump (2) and electromotor (5) Input interface is connected, and the output interface of electromotor (5) is connected with the A mouth of transfer case (6);The B mouth of transfer case (6) and first direction The delivery outlet of valve (10) is connected, and the C mouth of transfer case (6) and the second variable displacement motor (8) are connected, the D mouth of transfer case (6) and fan (7) connect;The A mouth of the second variable displacement motor (8) and the delivery outlet of the first switch valve (9) are connected, the input port of the first switch valve (9) Being connected with accumulator (15), the pilot control opening of the first switch valve (9) is connected with the delivery outlet of second direction valve (11);Second party Delivery outlet to the input port of valve (11) with quantitative hydraulic pump (4) is connected;The delivery outlet of quantitative hydraulic pump (4) and first direction valve (10) input port is connected, and the delivery outlet of first direction valve (10) is connected with the B mouth of transfer case (6);Accumulator (15) and second The input port of switch valve (12), pressure valve (14) are connected, the delivery outlet of second switch valve (12) and the first variable hydraulic motor (3) Input port be connected, the control mouth of second switch valve (12) is connected with the delivery outlet of third direction valve (13);Third direction valve (13) input port is connected with the delivery outlet of quantitative hydraulic pump (4).
A kind of excavator energy conserving system the most according to claim 1, it is characterised in that described transfer case (6) includes controlled Clutch, the first gear (6B), the second gear (6C), axle and bearing are constituted, and controllable clutch is hydraulic clutch (6A) or electricity Control device, first direction valve (10) is the external control device of controllable clutch, for electro hydraulic valve or pure electric control gear.
A kind of excavator energy conserving system the most according to claim 1, it is characterised in that described accumulator (15) drives first Variable hydraulic motor (3) realizes the independent control of switch by second switch valve (12), and second switch valve (12) is gate-controlled switch valve, There is switch valve and non-return valve function, the first variable hydraulic motor (3) according to actual needs, for fixed displacement motor or variable displacement motor shape Formula, integrates with volume adjustable hydraulic pump (2), or is arranged on the power taking mouth of electromotor (5).
A kind of excavator energy conserving system the most according to claim 1, it is characterised in that described second variable displacement motor (8) with Transfer case (6) direct connection, is arranged according to actual needs with the hydraulic motor quantity of transfer case (6) direct connection, and the first switch valve (9) is can Control switch valve, has switch valve and non-return valve function.
A kind of excavator energy conserving system the most according to claim 1, it is characterised in that described volume adjustable hydraulic pump (2), first Variable hydraulic motor (3) and quantitative hydraulic pump (4) integrate.
A kind of excavator energy conserving system the most according to claim 1, it is characterised in that described transfer case (6) and second becomes Amount motor (8) integrates.
CN201620688777.6U 2016-06-30 2016-06-30 Excavator energy conserving system Withdrawn - After Issue CN205804462U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620688777.6U CN205804462U (en) 2016-06-30 2016-06-30 Excavator energy conserving system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620688777.6U CN205804462U (en) 2016-06-30 2016-06-30 Excavator energy conserving system

Publications (1)

Publication Number Publication Date
CN205804462U true CN205804462U (en) 2016-12-14

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Application Number Title Priority Date Filing Date
CN201620688777.6U Withdrawn - After Issue CN205804462U (en) 2016-06-30 2016-06-30 Excavator energy conserving system

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105971053A (en) * 2016-06-30 2016-09-28 徐州徐工挖掘机械有限公司 Energy-saving system of excavator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105971053A (en) * 2016-06-30 2016-09-28 徐州徐工挖掘机械有限公司 Energy-saving system of excavator

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C14 Grant of patent or utility model
AV01 Patent right actively abandoned

Granted publication date: 20161214

Effective date of abandoning: 20180213

AV01 Patent right actively abandoned