CN203476865U - Excavating machine hydraulic control system - Google Patents
Excavating machine hydraulic control system Download PDFInfo
- Publication number
- CN203476865U CN203476865U CN201320572131.8U CN201320572131U CN203476865U CN 203476865 U CN203476865 U CN 203476865U CN 201320572131 U CN201320572131 U CN 201320572131U CN 203476865 U CN203476865 U CN 203476865U
- Authority
- CN
- China
- Prior art keywords
- control system
- hoist cylinder
- pump
- hydraulic control
- valve
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Operation Control Of Excavators (AREA)
Abstract
The utility model discloses an excavating machine hydraulic control system. The excavating machine hydraulic control system mainly comprises an oil tank, a first pump set, a second pump set and a third pump set. The first pump set is a duplex piston pump. Output ends of the duplex piston pump are connected to a first proportional directional valve and a second proportional directional valve respectively. Output ends of the first proportional directional valve and output ends of the second proportional directional valve are connected to a left walking motor, a right walking motor, a working arm lifting oil cylinder, a shovel plate lifting oil cylinder, a belt conveyor lifting oil cylinder and a belt conveyor rotating oil cylinder respectively. An inlet and an outlet of the working arm lifting oil cylinder, an inlet and an outlet of the shovel plate lifting oil cylinder, an inlet and an outlet of the belt conveyor lifting oil cylinder and an inlet and an outlet of the belt conveyor rotating oil cylinder are provided with balancing valve sets. The second pump set is connected with a hydraulic motor of a scraper conveyer driving roller through a first control loop unit. The third pump set is connected with a hydraulic motor of a star wheel collection mechanism through a second control loop unit. The excavating machine hydraulic control system is designed in a customized mode according to the working conditions of an excavating machine and the use conditions in the special environment, and therefore the excavating machine can be normally used in the severe environment.
Description
Technical field
The utility model relates to surface mining and technical field of engineering machinery, is specifically related to a kind of machine hydraulic control system of excavating.
Background technique
Open pit quarry many places are remote area in region, and surrounding environment is comparatively severe, and Seasonal Temperature Difference and region difference variation are large, and hydraulic system is because of the specific (special) requirements of working medium, higher to the requirement of the serviceability temperature of fluid.In addition, because mining dust is large, operating mode is severe, impact to hydraulic system is large, the simple not only normal operation of uncontrollable whole equipment of hydraulic control, and also in simple hydraulic control circuit, hydraulic element relatively disperse, level of integration is low, rate of fault is high, and working life is short.
Summary of the invention
Based on above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of machine hydraulic control system of excavating, this cover hydraulic system is according to excavating the condition of using in machine operating mode and particular surroundings, and amount body designed system, makes to excavate machine and can normally use in rugged environment.
The technical solution of the utility model is: a kind of machine hydraulic control system of excavating, comprise fuel tank, first, second, and third pump group, left running motor on traveling crawler and right running motor, working arm hoist cylinder, shovel board hoist cylinder, belt conveyer hoist cylinder, belt conveyer angling cylinder, the oil hydraulic motor of the oil hydraulic motor of star-wheel collecting mechanism and scraper conveyor drive roller; Described the first pump group is duplex plunger pump, described duplex plunger delivery side of pump is connected to respectively the first proportional reversing valve and the second proportional reversing valve, the output terminal of described first, second proportional reversing valve is connected to respectively left running motor, right running motor, working arm hoist cylinder, shovel board hoist cylinder, belt conveyer hoist cylinder and belt conveyer angling cylinder, at the import and export of described working arm hoist cylinder, shovel board hoist cylinder, belt conveyer hoist cylinder and belt conveyer angling cylinder, is furnished with equilibrium valve group; Described the second pump group is connected with the oil hydraulic motor of scraper conveyor drive roller through the first control loop unit; Described the 3rd pump group is connected with the oil hydraulic motor of star-wheel collecting mechanism through the second control loop unit.
Further, level meter, air-strainer and liquid level relay are also installed in described fuel tank, described liquid level relay has high-order contact and the low level detection contact detected.
Further, described first, second proportional reversing valve is load-sensitive formula proportional multi-path reversing valve; Described the first proportional reversing valve You San road, wherein the first via is connected to left running motor, and wherein the second road is connected to working arm hoist cylinder, and wherein Third Road is connected to shovel board hoist cylinder; Described the second proportional reversing valve You Si road, wherein the first via is connected to right running motor, and wherein the second tunnel is also connected to working arm hoist cylinder, and wherein Third Road is connected to belt conveyer hoist cylinder, and wherein Si road is connected to belt conveyer angling cylinder.
Further, the import and export of the oil hydraulic motor of described scraper conveyor drive roller is furnished with stop valve.
Further, the import and export of the oil hydraulic motor of described star-wheel collecting mechanism is furnished with stop valve.
Further, described the first control loop unit comprises two external controls leak electro-hydraulic reversing valve, several one-way valves, a direct-acting overflow valve and a pressure gauge; Described pressure gauge is arranged on inlet's pipeline of direct-acting overflow valve.
Further, described the second control loop unit comprises two external controls leak electro-hydraulic reversing valve, several one-way valves, a direct-acting overflow valve and a pressure gauge; Described pressure gauge is arranged on inlet's pipeline of direct-acting overflow valve.
Further, described second, third pump group is duplex gear pump.
Further, this is excavated machine hydraulic control system and also comprises coolant pump, described coolant pump is gear pump, described coolant pump is back in fuel tank through cooling circuit, on described cooling circuit, cooler is installed, electric contact thermometer and heater are also installed, the chain control of described electric contact thermometer and heater and coolant pump in described fuel tank.Described heater is provided with protecting jacket.
The beneficial effects of the utility model are: in (1) running motor loop: be mainly to adopt load-sensitive formula proportional reversing valve to control crawler travel motor operations, and proportional reversing valve is furnished with manual control and automatic control function.When electromagnet is malfunctioning, can adopt manual control, ensure manufacturing efficiency.This proportional reversing valve is also furnished with proportional amplifier, by regulating the turn-knob can step-less adjustment size of current, thus the aperture of control valve, the rotating speed of step-less adjustment running motor.In order to make running motor stable working, at motor import and export, is also furnished with equilibrium valve group.
(2) in the oil hydraulic circuit of working arm lifting, belt conveyer lifting, belt conveyer revolution, shovel board lifting: adopted equally load-sensitive formula proportional reversing valve to control oil cylinder work, and proportional reversing valve is furnished with manual control and automatic control function.When electromagnet is malfunctioning, can adopt manual control, ensure manufacturing efficiency.This proportional reversing valve is also furnished with proportional amplifier, by regulating the turn-knob can step-less adjustment size of current, thus the aperture of control valve, the speed of step-less adjustment oil cylinder rise and fall.In order to make each oil cylinder stable working, at oil cylinder import and export, is also furnished with equilibrium valve group.
(3) oil hydraulic motor of scraper conveyor drive roller adopts separately an electric-motor pump group fuel feeding.In its control loop, adopted the external control electro-hydraulic reversing valve that leaks, sensitive when it has commutation, impact little feature.
(4) oil hydraulic motor of star-wheel collecting mechanism is also to adopt separately an electric-motor pump group fuel feeding.In its control loop, also adopted the external control electro-hydraulic reversing valve that leaks, sensitive while thering is equally commutation, impact little feature.
(5) to be all installed on closed hydraulic pressure indoor for hydraulic oil container and pump group, is provided with container-type door, convenient for maintaining.
In a word, this cover hydraulic system is according to excavating the condition of using in machine operating mode and particular surroundings, and amount body designed system, makes to excavate machine and can normally use in rugged environment.
Accompanying drawing explanation
Fig. 1 excavates machine hydraulic control system figure in embodiment.
Reference Numerals: 1 - tank, 2 - level gauge, 3 - electric contact thermometer, 4 - Air Filter 5 - level relay, 6 - heater, 7 - Cooler , 8 - the first pump, 10 - mine dedicated motor, 11 - first proportional valve, 12 - second proportional valve, 13 - left travel motor, 14 - Right travel motor, 15 - valves group, 16 - filter, 17 - second pump, 18 - the third pump,,,, 19 - cooling pump, 20 - a one-way valve, 21 - direct acting relief valve, 22 - gauge, 23 - outside the control of electro-hydraulic valve leakage, 24 - valve,,,, 27 - scraper conveyor drive roller hydraulic motor, 28 - star wheel collection agencies hydraulic motors, 29 - arm lift cylinder, 30 - shovel lift cylinder, 31 - belt conveyor lift cylinder, 32 - belt rotary cylinder, 33 - the first control loop unit 34 - the second control loop unit.
Embodiment
With reference to legend 1, this is excavated machine hydraulic control system and comprises fuel tank 1, the first pump group 8, the second pump group 17, the three pump groups 18, left running motor 13 on traveling crawler and right running motor 14, working arm hoist cylinder 29, shovel board hoist cylinder 30, belt conveyer hoist cylinder 31, belt conveyer angling cylinder 32, the oil hydraulic motor 28 of star-wheel collecting mechanism and the oil hydraulic motor 27 of scraper conveyor drive roller.
Level meter 2, air-strainer 4 and liquid level relay 5 are also installed in fuel tank, and described liquid level relay 5 has high-order contact and the low level detection contact detected.Described fuel tank 1 adopts 304 stainless steels to be welded, and welds the laggard row passivation of embarking on journey, and hydraulic tubing is all adopted stainless-steel pipe and flange.Air-strainer can prevent from sneaking in refueling process granule foreign, and air-strainer can maintain pressure and the atmospheric pressure balance in fuel tank during hydraulic work system, to avoid pump may occur cavitation.When the liquid level that fuel tank detected when liquid level relay 5 is positioned at low level and detects contact, send prompting or alert notification and refuel.
The first pump group 8 is duplex plunger pump, and described duplex plunger pump is driven by 160KW colliery motor special 10.Described duplex plunger delivery side of pump is connected to respectively the first proportional reversing valve 11 and the second proportional reversing valve 12, the output terminal of described first, second proportional reversing valve is connected to respectively left running motor 13, right running motor 14, working arm hoist cylinder 29, shovel board hoist cylinder 30, belt conveyer hoist cylinder 31 and belt conveyer angling cylinder 32, at the import and export of described working arm hoist cylinder, shovel board hoist cylinder, belt conveyer hoist cylinder and belt conveyer angling cylinder, is furnished with equilibrium valve group 15.Specifically, described first, second proportional reversing valve is load-sensitive formula proportional multi-path reversing valve; Described the first proportional reversing valve You San road, wherein the first via is connected to left running motor 13, and wherein the second road is connected to working arm hoist cylinder 29, and wherein Third Road is connected to shovel board hoist cylinder 30; Described the second proportional reversing valve You Si road, wherein the first via is connected to right running motor 14, and wherein the second tunnel is also connected to working arm hoist cylinder 29, and wherein Third Road is connected to belt conveyer hoist cylinder 30, and wherein Si road is connected to belt conveyer angling cylinder 32.
The second pump group 17 is duplex gear pump.Described the second pump group 17 is connected with the oil hydraulic motor 27 of scraper conveyor drive roller through the first control loop unit 33.The import and export of the oil hydraulic motor 27 of described scraper conveyor drive roller is furnished with stop valve 24.Described the first control loop unit comprises two external controls leak electro-hydraulic reversing valve 23, several one-way valves 20, direct-acting overflow valve 21 and a pressure gauge; Described pressure gauge 22 is arranged on inlet's pipeline of direct-acting overflow valve.
The 3rd pump group is duplex gear pump.Described the 3rd pump group is connected with the oil hydraulic motor 28 of star-wheel collecting mechanism through the second control loop unit 34.The import and export of the oil hydraulic motor 28 of described star-wheel collecting mechanism is furnished with stop valve 24.Described the second control loop unit is identical with the first control loop unit, also comprises two external controls leak electro-hydraulic reversing valve 23, several one-way valves 20, direct-acting overflow valve 21 and a pressure gauge; Described pressure gauge 22 is arranged on inlet's pipeline of direct-acting overflow valve.
This is excavated machine hydraulic control system and also comprises coolant pump 19, described coolant pump is gear pump, described coolant pump is back in fuel tank through cooling circuit, cooler 7 is installed on described cooling circuit, electric contact thermometer and heater 3 are also installed, described electric contact thermometer 3 and heater 6 and the chain control of coolant pump 19 in described fuel tank.Described heater is provided with protecting jacket.
Specifically, electric contact thermometer 3 is provided with two Check points (the high point of temperature and temperature low spot), the chain control of electric contact thermometer and heater and coolant pump.When temperature is during lower than 30 ℃, heater 6 starts fuel tank is heated, if consider, heater and fluid directly contact can cause fluid comparatively fast rotten, and the fluid in fuel tank all need to be extracted out just and can be changed while changing heater, wastes time and energy; So in heater arranged outside protecting jacket, thereby slow down the replacing that fluid is rotten and reduce heater.When temperature arrives 40 ℃, heater stops heating; When temperature arrival height is put 55 ℃, coolant pump starts fuel tank inner fluid is carried out to circulating cooling, and cooler adopts water cooling; Consider that the machine of excavating is mobile device, so be furnished with water tank excavating on machine, because cooling water temperature will be lower than 20 ℃, particularly summer temperature is high.At the other equipment of cooler bin refrigeration plant, for reducing cooler inlet water temperature, thereby reach good cooling effect.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model specification and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, include in scope of patent protection of the present utility model.
Claims (10)
1. excavate machine hydraulic control system for one kind, comprise fuel tank, first, second, and third pump group, left running motor on traveling crawler and right running motor, working arm hoist cylinder, shovel board hoist cylinder, belt conveyer hoist cylinder, belt conveyer angling cylinder, the oil hydraulic motor of the oil hydraulic motor of star-wheel collecting mechanism and scraper conveyor drive roller; It is characterized in that: described the first pump group is duplex plunger pump, described duplex plunger delivery side of pump is connected to respectively the first proportional reversing valve and the second proportional reversing valve, the output terminal of described first, second proportional reversing valve is connected to respectively left running motor, right running motor, working arm hoist cylinder, shovel board hoist cylinder, belt conveyer hoist cylinder and belt conveyer angling cylinder, at the import and export of described working arm hoist cylinder, shovel board hoist cylinder, belt conveyer hoist cylinder and belt conveyer angling cylinder, is furnished with equilibrium valve group; Described the second pump group is connected with the drive roller oil hydraulic motor of scraper conveyor through the first control loop unit; Described the 3rd pump group is connected with the oil hydraulic motor of star-wheel collecting mechanism through the second control loop unit.
2. the machine hydraulic control system of excavating according to claim 1, is characterized in that: level meter, air-strainer and liquid level relay are also installed in described fuel tank, and described liquid level relay has high-order contact and the low level detection contact detected.
3. the machine hydraulic control system of excavating according to claim 1, is characterized in that: described first, second proportional reversing valve is load-sensitive formula proportional multi-path reversing valve; Described the first proportional reversing valve You San road, wherein the first via is connected to left running motor, and wherein the second road is connected to working arm hoist cylinder, and wherein Third Road is connected to shovel board hoist cylinder; Described the second proportional reversing valve You Si road, wherein the first via is connected to right running motor, and wherein the second tunnel is also connected to working arm hoist cylinder, and wherein Third Road is connected to belt conveyer hoist cylinder, and wherein Si road is connected to belt conveyer angling cylinder.
4. the machine hydraulic control system of excavating according to claim 1, is characterized in that: the import and export of the oil hydraulic motor of described scraper conveyor drive roller is furnished with stop valve.
5. the machine hydraulic control system of excavating according to claim 1, is characterized in that: the import and export of the oil hydraulic motor of described star-wheel collecting mechanism is furnished with stop valve.
6. the machine hydraulic control system of excavating according to claim 1, is characterized in that: described the first control loop unit comprises two external controls leak electro-hydraulic reversing valve, several one-way valves, a direct-acting overflow valve and a pressure gauge; Described pressure gauge is arranged on inlet's pipeline of direct-acting overflow valve.
7. the machine hydraulic control system of excavating according to claim 1, is characterized in that: described the second control loop unit comprises two external controls leak electro-hydraulic reversing valve, several one-way valves, a direct-acting overflow valve and a pressure gauge; Described pressure gauge is arranged on inlet's pipeline of direct-acting overflow valve.
8. the machine hydraulic control system of excavating according to claim 1, is characterized in that: described second, third pump group is duplex gear pump.
9. the machine hydraulic control system of excavating according to claim 1, it is characterized in that: also comprise coolant pump, described coolant pump is gear pump, described coolant pump is back in fuel tank through cooling circuit, on described cooling circuit, cooler is installed, electric contact thermometer and heater are also installed, the chain control of described electric contact thermometer and heater and coolant pump in described fuel tank.
10. the machine hydraulic control system of excavating according to claim 9, is characterized in that: described heater is provided with protecting jacket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320572131.8U CN203476865U (en) | 2013-09-16 | 2013-09-16 | Excavating machine hydraulic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320572131.8U CN203476865U (en) | 2013-09-16 | 2013-09-16 | Excavating machine hydraulic control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203476865U true CN203476865U (en) | 2014-03-12 |
Family
ID=50225201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320572131.8U Expired - Fee Related CN203476865U (en) | 2013-09-16 | 2013-09-16 | Excavating machine hydraulic control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203476865U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832478A (en) * | 2015-05-13 | 2015-08-12 | 江苏亚星波纹管有限公司 | Hydraulic system for driving middle lower roller of four-roller plate bending machine |
-
2013
- 2013-09-16 CN CN201320572131.8U patent/CN203476865U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832478A (en) * | 2015-05-13 | 2015-08-12 | 江苏亚星波纹管有限公司 | Hydraulic system for driving middle lower roller of four-roller plate bending machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101974926A (en) | Oil returning system capable of automatically controlling hydraulic oil temperature used for excavator | |
| CN203476865U (en) | Excavating machine hydraulic control system | |
| CN209853719U (en) | Cooling liquid filling and recovering device | |
| CN203374543U (en) | Hydraulic power pack of roller head machine | |
| CN104405006A (en) | Loading machine hemi-variate hydraulic system | |
| CN103775087B (en) | Roll-turning continuous excavator | |
| CN204299984U (en) | The flushing oil-supplementing system of super-tonnage excavator closed rotary system | |
| CN208010703U (en) | Hydraulic petroleum lifting device intelligence control system | |
| CN202866971U (en) | Motor heat control system of milling machine | |
| CN202789795U (en) | Hydraulic system of skid steer loader | |
| CN203488486U (en) | Electronic-hydraulic system of self-propelled turning machine | |
| CN211472713U (en) | Prefabricated for pump station pipeline freeze-proof device of rainwater | |
| CN202326529U (en) | Hydraulic oil circulation control device for hydraulic excavator | |
| CN203068142U (en) | Hydraulic motor leaked oil recovery device of rotary table chain conveying machine | |
| CN203412625U (en) | Underground coal mine drainage facility | |
| CN203548433U (en) | Hydraulic oil heat-dissipating system for wheel loader | |
| CN203702476U (en) | Water injection pump | |
| CN202547188U (en) | Automatic switching system for ground source heat pump groundwater exploitation and recharging wells | |
| CN202483996U (en) | Cooling protection device for hydraulic reversing system | |
| CN206206296U (en) | A kind of integrated hydraulic power assembly | |
| CN111075798A (en) | Piston type filling industrial pump hydraulic system | |
| CN201858164U (en) | Liquid delivery pump for well | |
| CN205190387U (en) | Hydraulic system that drive device rises | |
| CN103707794A (en) | Hydraulic mobile pump truck | |
| CN203713659U (en) | Hydraulic moving pump truck |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160215 Address after: 350000, Fujian, Fuzhou County, Qingkou Town, Minhou Ji Shan Road, No. 3 office building Patentee after: Fujian nyea Industrial Co.,Ltd. Address before: 350000 Qingkou investment zone, Minhou County, Fuzhou, Fujian Patentee before: FUJIAN TIANJUN INDUSTRIAL Co.,Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160627 Address after: 350000 Qingkou investment zone, Minhou County, Fuzhou, Fujian Patentee after: FUJIAN TIANJUN INDUSTRIAL Co.,Ltd. Address before: 350000, Fujian, Fuzhou County, Qingkou Town, Minhou Ji Shan Road, No. 3 office building Patentee before: Fujian nyea Industrial Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20210916 |