CN106979453A - The centralized lubricating system and its control method of a kind of wheel excavator - Google Patents

The centralized lubricating system and its control method of a kind of wheel excavator Download PDF

Info

Publication number
CN106979453A
CN106979453A CN201710344521.2A CN201710344521A CN106979453A CN 106979453 A CN106979453 A CN 106979453A CN 201710344521 A CN201710344521 A CN 201710344521A CN 106979453 A CN106979453 A CN 106979453A
Authority
CN
China
Prior art keywords
getting
bus
lubricated
lubricating system
lubrication
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
Application number
CN201710344521.2A
Other languages
Chinese (zh)
Inventor
刘刚强
杨裕丰
刘合涛
李耀
李帆
刘杰
郭乐
潘志洋
王毅
张东杰
郑磊
陈春雷
杨晓磊
马瑞永
王全永
历娜
王存珍
张真畅
朱金孟
杜可可
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 CN201710344521.2A priority Critical patent/CN106979453A/en
Publication of CN106979453A publication Critical patent/CN106979453A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16NLUBRICATING
    • F16N39/00Arrangements for conditioning of lubricants in the lubricating system
    • F16N39/06Arrangements for conditioning of lubricants in the lubricating system by filtration
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16NLUBRICATING
    • F16N23/00Special adaptations of check valves

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

The invention discloses a kind of centralized lubricating system of wheel excavator and its control method, by blocking alarm lamp, get on the bus forced feed lubrication button and relay indicating light, forced feed lubrication button is got off and relay indicating light, controller for excavators, electronic lubricating pump, safety valve, filter, solenoid directional control valve, center steering body and the distributor that gets on and off are lubricated operation with getting on or off the bus automatic cycle to hydraulic crawler excavator.The present invention is easy to use, effect substantially, can be got on the bus to hydraulic crawler excavator by the system and the circulation of lower mechanism of car carries out self-lubricate operation, while can also adjust manually on demand, and be stopped in lubricating system during hypertonia and send alarm signal, for maintenance;Operating efficiency can be greatly enhanced, hand labor is reduced, cost of labor is reduced.

Description

The centralized lubricating system and its control method of a kind of wheel excavator
Technical field
The present invention relates to a kind of centralized lubricating system of excavator, category excavator equipment field is specifically a kind of wheeled digging The centralized lubricating system and its control method of pick machine.
Background technology
As the important member of engineering machinery family, wheeled hydraulic excavator is because of high maneuverability and high flexibility, widely Applied to urban road construction, centralized lubricating system is the important component of wheel excavator, current wheeled hydraulic excavator Only equipped with centralized lubrication of getting on the bus, centralized lubricating system is not equipped with for getting off, oil site of getting off has a very wide distribution, it is necessary to respectively Beat lubricating grease manually to be lubricated, increase cost of labor, and the self-lubricate that gets on and off can not be realized.
The content of the invention
In view of the above-mentioned problems of the prior art, the present invention provide a kind of wheel excavator centralized lubricating system and its Control method, can be achieved the overall self-lubricate that gets on and off, and reduce hand labor, improve operating efficiency.
To achieve these goals, the technical solution adopted by the present invention is:A kind of centralized lubricating system of wheel excavator, Including controller for excavators, the controller for excavators is connected with:
Electronic lubricating pump, for providing operating pressure for lubricating system;The electronic lubricating pump is also connected by safety valve, filter Solenoid directional control valve is connected to, the side delivery outlet of the solenoid directional control valve is connected with distributor of getting on the bus, and opposite side delivery outlet is in Heart revolving body is connected with distributor of getting off;
Solenoid directional control valve, for switching get on the bus lubrication operation and lubrication operation of getting off;
Get on the bus forced feed lubrication button and relay indicating light of getting on the bus, for enforcing lubrication operation of getting on the bus, and send work of getting on the bus Indication signal;
Get off forced feed lubrication button and relay indicating light of getting off, for enforcing lubrication operation of getting off, and send work of getting off Indication signal;
Safety valve, for detecting in lubricating system when pressure exceedes rated pressure feedback high-voltage signal to excavator control Device;
Alarm lamp is blocked, for when safety valve is feeding back high-voltage signal, sending blocking alarm signal.
Further, the distributor of getting on the bus includes main allocated equipment of getting on the bus, and the main allocated equipment of getting on the bus is connected with secondary of getting on the bus Distributor, mechanism to be lubricated of getting on the bus, such as equipment and oil cylinder, slew gear are connected to by secondary dispenser of getting on the bus.
Further, the distributor of getting off includes main allocated equipment of getting off, and the main allocated equipment of getting off is connected with secondary of getting off Distributor, mechanism to be lubricated of getting off, such as vehicle bridge, supporting leg and oil cylinder are connected to by secondary dispenser of getting off.
It is preferred that, the solenoid directional control valve is two position three-way valve, can select one in get on the bus distributor and distributor of getting off Connect, complete the lubrication operation that gets on and off.
A kind of control method of wheel excavator centralized lubricating system, lubricating system enters work standard after excavating machine starting Controller for excavators control solenoid directional control valve is in off-position, that is, oil duct of getting on the bus after standby state, excavator dead-man's handle closure Conducting, relay indicating light of getting on the bus work, electronic lubricating pump extracts lubricating grease and entered by safety valve, filter, solenoid directional control valve Get on the bus distributor, by getting on the bus, distributor is prorated to secondary dispenser of getting on the bus, to mechanism to be lubricated of getting on the bus(Such as work clothes Put and oil cylinder, slew gear etc.)It is lubricated operation;After upper mechanism of car lubrication is finished, controller for excavators control electromagnetism is changed Obtain electric to valve, that is, oil duct of getting off conducting, relay indicating light of getting off work, electronic lubricating pump extracts lubricating grease and passes through safety valve, mistake Filter, solenoid directional control valve, center steering body enter distributor of getting off, and time fraction of getting off is prorated to by distributor of getting off Orchestration, to mechanism to be lubricated of getting off(Such as vehicle bridge, supporting leg and oil cylinder)It is lubricated operation;Dug after lower mechanism of car lubrication is finished Pick machine controller controls solenoid directional control valve to power off again, and mechanism of car lubricates progresss in, and such to circulate the realization mechanism that gets on and off automatic Lubrication.
Further, if upper mechanism of car needs emergency lubrication in greasing, can be manually pressed by getting on the bus forced feed lubrication by Button, controller for excavators controls solenoid directional control valve to power off after signal is obtained, and upper mechanism of car lubrication is carried out immediately;In greasing If in lower mechanism of car when needing emergency lubrication, forced feed lubrication button of getting off can be manually pressed by, controller for excavators is obtaining signal Control solenoid directional control valve obtains electric afterwards, and lower mechanism of car lubrication is carried out immediately.
Further, if safety valve is detected in lubricating system when pressure exceedes rated pressure and fed back immediately in greasing High-voltage signal is to controller for excavators, and controller for excavators judges to be likely to occur plugging fault in lubricating system, and control is blocked Alarm lamp works, and sends blocking alarm signal;The electronic lubricating pump power-off of controller for excavators control simultaneously, stops lubricating system Work, system maintenance to be lubricated to it is normal when, restart lubricating system and enter working condition.
The beneficial effects of the invention are as follows:Hydraulic crawler excavator can be got on the bus by the system and the circulation of lower mechanism of car is carried out automatically Lubrication operation, while can also adjust manually on demand, and is stopped during hypertonia in lubricating system and sends alarm signal Number, for maintenance;Operating efficiency can be greatly enhanced, hand labor is reduced, cost of labor is reduced.
Brief description of the drawings
Fig. 1 is lubricating system schematic diagram of the present invention.
In figure:1st, alarm lamp is blocked, 2, forced feed lubrication button of getting on the bus, 3, forced feed lubrication button of getting off, 4, excavator control Device, 5, electronic lubricating pump, 6, safety valve, 7, filter, 8, solenoid directional control valve, 9, center steering body, 10, main allocated equipment of getting off, 11st, get off secondary dispenser, 12, mechanism to be lubricated of getting off, 13, main allocated equipment of getting on the bus, 14, secondary dispenser of getting on the bus, 15, get on the bus Mechanism to be lubricated.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of centralized lubricating system of wheel excavator, including controller for excavators 4, the excavator control Device 4 processed is connected with:
Electronic lubricating pump 5, for providing operating pressure for lubricating system;The electronic lubricating pump 5 also passes through safety valve 6, filtering Device 7 is connected with solenoid directional control valve 8, and the side delivery outlet of the solenoid directional control valve 8 is connected with distributor of getting on the bus, opposite side delivery outlet Distributor of getting off is connected with by center steering body 9;
Solenoid directional control valve 8, for switching get on the bus lubrication operation and lubrication operation of getting off;
Get on the bus forced feed lubrication button 1 and relay indicating light of getting on the bus, for enforcing lubrication operation of getting on the bus, and send work of getting on the bus Indication signal;
Get off forced feed lubrication button 2 and relay indicating light of getting off, for enforcing lubrication operation of getting off, and send work of getting off Indication signal;
Safety valve 6, for detecting in lubricating system when pressure exceedes rated pressure feedback high-voltage signal to excavator control Device 4;
Alarm lamp 1 is blocked, for when safety valve 6 is feeding back high-voltage signal, sending blocking alarm signal.
Further, the distributor of getting on the bus includes main allocated equipment 13 of getting on the bus, and the main allocated equipment 13 of getting on the bus, which is connected with, gets on the bus Secondary dispenser 14, mechanism 15 to be lubricated of getting on the bus is connected to by secondary dispenser 14 of getting on the bus, such as equipment and oil cylinder, revolution Mechanism etc..
Further, the distributor of getting off includes main allocated equipment 10 of getting off, and the main allocated equipment 10 of getting off, which is connected with, gets off Secondary dispenser 11, get off mechanism 12 to be lubricated, such as vehicle bridge, supporting leg and oil cylinder are connected to by secondary dispenser 11 of getting off.
It is preferred that, the solenoid directional control valve 8 is two position three-way valve, can select one in get on the bus distributor and distributor of getting off Connect, complete the lubrication operation that gets on and off.
A kind of control method of wheel excavator centralized lubricating system, lubricating system enters work standard after excavating machine starting The control solenoid directional control valve 8 of controller for excavators 4 is in off-position, that is, oil of getting on the bus after standby state, excavator dead-man's handle closure Road is turned on, and relay indicating light of getting on the bus work, electronic lubricating pump 5 extracts lubricating grease and passes through safety valve 6, filter 7, solenoid directional control valve 8 enter main allocated equipment 13 of getting on the bus, and by getting on the bus, main allocated equipment 13 is prorated to secondary dispenser 14 of getting on the bus, and waits to moisten to getting on the bus Sliding mechanism 15(Such as equipment and oil cylinder, slew gear)It is lubricated operation;The lubrication of mechanism 15 to be lubricated of waiting to get on the bus is finished Afterwards, the control of controller for excavators 4 solenoid directional control valve 8 obtains electric, that is, oil duct of getting off conducting, relay indicating light of getting off work, electronic profit Sliding pump 5 extracts lubricating grease and enters main allocated equipment 10 of getting off by safety valve 6, filter 7, solenoid directional control valve 8, center steering body 9, By getting off, main allocated equipment 10 is prorated to secondary dispenser 11 of getting off, to mechanism 12 to be lubricated of getting off(Such as vehicle bridge, supporting leg And oil cylinder etc.)It is lubricated operation;Controller for excavators 4 controls electromagnetism to change again after the lubrication of mechanism 12 to be lubricated of getting off is finished Powered off to valve 8, carry out the lubrication operation of mechanism 15 to be lubricated of getting on the bus, so circulation realization gets on and off mechanism self-lubricate.
Further, if mechanism 15 to be lubricated of getting on the bus in greasing needs emergency lubrication, it can be manually pressed by getting on the bus by force System lubrication button 2, controller for excavators 4 controls solenoid directional control valve 8 to power off, machine to be lubricated of getting on the bus is carried out immediately after signal is obtained The lubrication operation of structure 15;If mechanism 12 to be lubricated of getting off in greasing needs emergency lubrication, it can be manually pressed by getting off by force System lubrication button 3, it is electric that controller for excavators 4 controls solenoid directional control valve 8 to obtain after signal is obtained, and machine to be lubricated of getting off is carried out immediately The lubrication operation of structure 12.
Further, if in greasing safety valve 6 detect in lubricating system pressure exceed it is anti-immediately during rated pressure High-voltage signal is presented to controller for excavators 4, controller for excavators 4 judges to be likely to occur plugging fault in lubricating system, control Block alarm lamp 1 to work, send blocking alarm signal;The electronic lubricating pump 5 of the control of controller for excavators 4 simultaneously is powered off, and makes lubrication System stalls, system maintenance to be lubricated to it is normal when, restart lubricating system and enter working condition.
In summary, the present invention is easy to use, and effect substantially, can be got on the bus and lower vehicle device by the system to hydraulic crawler excavator Structure circulation carries out self-lubricate operation, while can also adjust manually on demand, and stops in lubricating system work during hypertonia Make and send alarm signal, for maintenance;Operating efficiency can be greatly enhanced, hand labor is reduced, cost of labor is reduced.

Claims (5)

1. a kind of centralized lubricating system of wheel excavator, it is characterised in that including controller for excavators(4), the excavator Controller(4)It is connected with:
Electronic lubricating pump(5), for providing operating pressure for lubricating system;The electronic lubricating pump(5)Also pass through safety valve (6), filter(7)It is connected with solenoid directional control valve(8), the solenoid directional control valve(8)Side delivery outlet be connected with distribution of getting on the bus Device, opposite side delivery outlet passes through center steering body(9)It is connected with distributor of getting off;
Solenoid directional control valve(8), for switching get on the bus lubrication operation and lubrication operation of getting off;
Get on the bus forced feed lubrication button(1)And relay indicating light of getting on the bus, for enforcing lubrication operation of getting on the bus, and send work of getting on the bus Make indication signal;
Get off forced feed lubrication button(2)And relay indicating light of getting off, for enforcing lubrication operation of getting off, and send work of getting off Make indication signal;
Safety valve(6), for detecting in lubricating system when pressure exceedes rated pressure feedback high-voltage signal to excavator control Device processed(4);
Block alarm lamp(1), in safety valve(6)When feeding back high-voltage signal, blocking alarm signal is sent.
2. a kind of centralized lubricating system of wheel excavator according to claim 1, it is characterised in that the distribution of getting on the bus Device includes main allocated equipment of getting on the bus(13), the main allocated equipment of getting on the bus(13)It is connected with secondary dispenser of getting on the bus(14), by getting on the bus Secondary dispenser(14)It is connected to mechanism to be lubricated of getting on the bus(15).
3. a kind of centralized lubricating system of wheel excavator according to claim 1, it is characterised in that the distribution of getting off Device includes main allocated equipment of getting off(10), the main allocated equipment of getting off(10)It is connected with secondary dispenser of getting off(11), by getting off Secondary dispenser(11)It is connected to mechanism to be lubricated of getting off(12).
4. a kind of centralized lubricating system of wheel excavator according to claim 1, it is characterised in that the electromagnetic switch Valve(8)For two position three-way valve.
5. a kind of control method of wheel excavator centralized lubricating system, it is characterised in that appoint including the use of Claims 1-4 A kind of centralized lubricating system of wheel excavator described in one, and including step:Lubricating system enters after excavating machine starting Controller for excavators after readiness for operation, excavator dead-man's handle closure(4)Control solenoid directional control valve(8)In power-off shape State, that is, oil duct of getting on the bus conducting, relay indicating light of getting on the bus work, electronic lubricating pump(5)Extract lubricating grease and pass through safety valve(6), mistake Filter(7), solenoid directional control valve(8)Into main allocated equipment of getting on the bus(13), pass through main allocated equipment of getting on the bus(13)It is prorated to Car secondary dispenser(14), to mechanism to be lubricated of getting on the bus(15)It is lubricated operation;Wait mechanism to be lubricated of getting on the bus(15)Lubricate Bi Hou, controller for excavators(4)Control solenoid directional control valve(8)Obtain electric, that is, oil duct of getting off conducting, relay indicating light of getting off work, Electronic lubricating pump(5)Extract lubricating grease and pass through safety valve(6), filter(7), solenoid directional control valve(8), center steering body(9)Enter Enter main allocated equipment of getting off(10), pass through main allocated equipment of getting off(10)It is prorated to secondary dispenser of getting off(11), to getting off Mechanism to be lubricated(12)It is lubricated operation;Wait mechanism to be lubricated of getting off(12)Lubrication finishes rear controller for excavators(4)Again Control solenoid directional control valve(8)Power-off, carries out mechanism to be lubricated of getting on the bus(15)Lubrication operation, so circulation realize upper and lower vehicle device Structure self-lubricate;If getting on the bus mechanism to be lubricated in greasing(15)When needing emergency lubrication, pressure of getting on the bus can be manually pressed by Lubricate button(2), controller for excavators(4)Solenoid directional control valve is controlled after signal is obtained(8)Power off and light work of getting on the bus and refer to Show lamp, mechanism to be lubricated of getting on the bus is carried out immediately(15)Lubrication operation;If getting off mechanism to be lubricated in greasing(12)Need When wanting emergency lubrication, forced feed lubrication button of getting off can be manually pressed by(3), controller for excavators(4)Electricity is controlled after signal is obtained Magnetic reversal valve(8)Obtain electric and light relay indicating light of getting off, mechanism to be lubricated of getting off is carried out immediately(12)Lubrication operation;In profit If safety valve during cunning(6)Detect and feed back high-voltage signal immediately to excavator when pressure exceedes rated pressure in lubricating system Controller(4), controller for excavators(4)Judge to be likely to occur plugging fault in lubricating system, control blocks alarm lamp(1)Work Make, send blocking alarm signal;While controller for excavators(4)Control electronic lubricating pump(5)Power-off, makes lubricating system stop work Make, system maintenance to be lubricated to it is normal when, restart lubricating system and enter working condition.
CN201710344521.2A 2017-05-16 2017-05-16 The centralized lubricating system and its control method of a kind of wheel excavator Pending CN106979453A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710344521.2A CN106979453A (en) 2017-05-16 2017-05-16 The centralized lubricating system and its control method of a kind of wheel excavator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710344521.2A CN106979453A (en) 2017-05-16 2017-05-16 The centralized lubricating system and its control method of a kind of wheel excavator

Publications (1)

Publication Number Publication Date
CN106979453A true CN106979453A (en) 2017-07-25

Family

ID=59343854

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710344521.2A Pending CN106979453A (en) 2017-05-16 2017-05-16 The centralized lubricating system and its control method of a kind of wheel excavator

Country Status (1)

Country Link
CN (1) CN106979453A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108825768A (en) * 2018-09-03 2018-11-16 杭叉集团股份有限公司 A kind of dynamic compaction machinery automatic lubricating system and its control method
WO2021018131A1 (en) * 2019-07-30 2021-02-04 王定根 Sequential oil supply device and fully automatic lubricant injection device for excavator
CN113819386A (en) * 2021-08-25 2021-12-21 许昌许继风电科技有限公司 Control method and device for single-wire type lubricating system of wind generating set
WO2022007595A1 (en) * 2020-07-09 2022-01-13 郑州奥特科技有限公司 Excavator linkage, linkage assembly, and excavator linkage lubricating system
CN114229397A (en) * 2021-12-27 2022-03-25 湖南崇德科技股份有限公司 Automatic lubricating method and system for rolling machine lifter

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57208393A (en) * 1981-06-15 1982-12-21 Daikin Ind Ltd Lubricating system of hydraulic working machine
CN102261102A (en) * 2011-05-04 2011-11-30 上海三一重机有限公司 Automatic lubricating system of excavator
CN103062610A (en) * 2012-12-26 2013-04-24 中联重科股份有限公司 Lubricating method and system of engineering machine and engineering machine with lubricating system
CN203453748U (en) * 2013-08-26 2014-02-26 三一汽车制造有限公司 Lubricating system, multi-stage arm rest structure and engineering machine
WO2015002577A1 (en) * 2013-07-05 2015-01-08 Volvo Construction Equipment Ab Liquid distribution system
CN206036617U (en) * 2016-08-26 2017-03-22 天津赛瑞机器设备有限公司 Lubricating system for power shovel

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57208393A (en) * 1981-06-15 1982-12-21 Daikin Ind Ltd Lubricating system of hydraulic working machine
CN102261102A (en) * 2011-05-04 2011-11-30 上海三一重机有限公司 Automatic lubricating system of excavator
CN103062610A (en) * 2012-12-26 2013-04-24 中联重科股份有限公司 Lubricating method and system of engineering machine and engineering machine with lubricating system
WO2015002577A1 (en) * 2013-07-05 2015-01-08 Volvo Construction Equipment Ab Liquid distribution system
CN203453748U (en) * 2013-08-26 2014-02-26 三一汽车制造有限公司 Lubricating system, multi-stage arm rest structure and engineering machine
CN206036617U (en) * 2016-08-26 2017-03-22 天津赛瑞机器设备有限公司 Lubricating system for power shovel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108825768A (en) * 2018-09-03 2018-11-16 杭叉集团股份有限公司 A kind of dynamic compaction machinery automatic lubricating system and its control method
WO2021018131A1 (en) * 2019-07-30 2021-02-04 王定根 Sequential oil supply device and fully automatic lubricant injection device for excavator
WO2022007595A1 (en) * 2020-07-09 2022-01-13 郑州奥特科技有限公司 Excavator linkage, linkage assembly, and excavator linkage lubricating system
CN113819386A (en) * 2021-08-25 2021-12-21 许昌许继风电科技有限公司 Control method and device for single-wire type lubricating system of wind generating set
CN114229397A (en) * 2021-12-27 2022-03-25 湖南崇德科技股份有限公司 Automatic lubricating method and system for rolling machine lifter

Similar Documents

Publication Publication Date Title
CN106979453A (en) The centralized lubricating system and its control method of a kind of wheel excavator
RU2603811C2 (en) Recuperative generator system for electric loader
DE07010392T1 (en) Traveling mechanism for a self-propelled work machine
EP1764020B1 (en) Suction device
EP3788921A1 (en) Multipurpose vacuum cleaner
DE112012000333T5 (en) BATTERY CHARGE / DISCHARGE CONTROL DEVICE, BATTERY CHARGE / DISCHARGE CONTROL PROCEDURE, AND HYBRID WORK MACHINE WITH A BATTERY CHARGE / DISCHARGE CONTROL DEVICE
CN103459857A (en) Hydraulic drive of machinery
EP2610049B2 (en) Method for controlling a hydraulic press
EP2586901B1 (en) Switching device and method for operating a domestic appliance
WO2023001533A1 (en) Auxiliary unit and system for electrically driving a truck-mounted concrete pump, and truck-mounted concrete pump
CN102926539B (en) Pumping machine and emergency driving system thereof
CN205668894U (en) Tower crane special recognition of face control system
DE102016206053A1 (en) Protection circuit for braking resistor
CN203096805U (en) Electric-pneumatic-hydraulic combined control system of wheel excavator
WO2022269040A1 (en) Supply cable
KR102592218B1 (en) work vehicle
CN205725135U (en) Three-phase intelligent seamless auto switching device for dual-electric source
CN103276764B (en) Walking cruising proportion control device and excavator
CN104444819B (en) A kind of crane modularization intelligent control system and control method
CN209149126U (en) A kind of engineering machinery miscellaneous function safe starting control device
CN202894266U (en) Lubricating and quantitative feeding device of punch head of die-casting machine
CN106740970A (en) Track train brake fluid system and its auxiliary relief device
CN207892937U (en) A kind of hydraulic pressure rail operation machine
CN105035159B (en) The dynamical system of dual power source output equipment and the electric vehicle with auxiliary equipment
CN216951047U (en) Sector limit control system of highway-railway dual-purpose operating vehicle

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20170725

RJ01 Rejection of invention patent application after publication