A kind of excavator integrated valve group of pilot control system
Technical field
This utility model is related to technical field of engineering machinery, more particularly to a kind of excavator is integrated with pilot control system
Valve.
Background technology
At present, positive flow control excavator pilot system is required to install each action pilot signal of pressure transducer collection,
Main pump changes in flow rate is controlled with this, the precise control needed for reaching traffic income i.e., and then energy saving.
Fig. 1 is the structural representation of existing pilot control system transition valve group.As shown in figure 1, existing pilot control system
Transition valve group includes transition valve 1, pressure transducer 2, shuttle valve 3 and joint and flexible pipe;Wherein pressure transducer 2 has 9, and often
The connector mouth of individual pressure transducer 2 is arranged on transition valve 1 upward;And it is connected to each action joint of transition valve 1
I.e. left and right swivel coupling 11, dipper excavation joint 12, dipper discharging joint 13, left lateral are walked joint 14, right lateral and walk joint 15, large arm
Rise downspout connector 17, scraper bowl under joint 16, large arm excavate joint 18 and 19 one end of scraper bowl discharging joint successively with each pressure
The connector mouth connection of sensor 2, the other end are all connected with flexible pipe;Each action on transition valve 1 (left and right revolution, dipper excavate,
Dipper discharging, left lateral are walked, right lateral is walked, large arm rises, large arm declines, scraper bowl is excavated, scraper bowl discharging) guide oil will pass through phase
The collection signal of pressure transducer 2 answered passes to controller;Left and right revolution action gathers a revolution letter by an external shuttle valve 3
Number, dipper excavation, dipper discharging, left lateral is walked, right lateral is walked, large arm rises, large arm declines, scraper bowl is excavated, scraper bowl discharging action is each
Signal is gathered by a pressure transducer 2, totally 9 pressure transducers complete the collection of pilot system pressure signal.
The shortcoming of above-mentioned existing pilot control system transition valve group is:
1) transition valve overall dimensions 500mmX50mmX45mm (long X width X is high) is long, takes up room big, bad arrangement;
2) the external shuttle valve of collection revolution signal, needs certain space arrangement pipeline connection, increased trouble point and not beautiful
See;
3) upward, easy hydrops produce failure to the connector mouth of pressure transducer, cause action bad.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of excavator pilot control system
System pile-up valve.
For achieving the above object, this utility model adopts following technical proposals:
A kind of excavator integrated valve group of pilot control system, including pile-up valve, pressure transducer, shuttle valve and joint and
Flexible pipe;Wherein described shuttle valve is built in pile-up valve;The pressure transducer has 7, and the connector of each pressure transducer
Mouth is arranged towards a side of pile-up valve;And be connected to the left and right swivel coupling on pile-up valve, dipper and excavate joint, dipper discharging
Joint, large arm rise joint, under large arm downspout connector, scraper bowl excavate joint and scraper bowl discharging joint one end successively with each pressure
Sensor connector mouth connection, the other end with it is hose connection;Left and right revolution, dipper excavation, dipper discharging on pile-up valve,
Large arm rises, large arm declines, scraper bowl is excavated, the guide oil needed for scraper bowl discharging action is gathered by corresponding pressure transducer
Signal passes to controller;Left and right revolution action gathers a revolution signal by shuttle valve, dipper excavation, dipper discharging, in large arm
Rise, large arm declines, scraper bowl is excavated, scraper bowl discharging action respectively gathers signal by a pressure transducer.
Preferably, a kind of excavator integrated valve group of pilot control system, also including walking pilot valve, the walking guide
Two pressure transducers are provided with valve, and one, the connector mouth of the two pressure transducers is walked joint with left lateral and is connected, separately
Joint is walked with right lateral for one to be connected, and then the collection to left and right walk signal is completed by the two pressure transducers.
Preferably, a kind of excavator integrated valve group of pilot control system, also including sensor guard plate, the sensor
Protective plate is fixed on pile-up valve, and be positioned close to the lateral edges that pile-up valve is provided with pressure transducer connector mouth.
Preferably, the shuttle valve includes positioned at integrated valve surface, the interior hexagonal plug being arranged at shuttle valve opening and is located at
Steel ball, O-ring and the shuttle valve plug for setting gradually inside pile-up valve, from the bottom up.
Preferably, the pile-up valve adopts aluminum material.
The beneficial effects of the utility model are, the excavator integrated valve group of pilot control system that this utility model is provided
Size is 285mmX85mmX75mm (long X width X is high), and with respect to existing pilot control system transition valve group, overall dimension reduces significantly
;In addition, pile-up valve adopts aluminum material, overall weight is alleviated, improve the reliability of mounting bracket;Furthermore, pile-up valve
On pressure transducer be horizontally set at pile-up valve side, and be provided with sensor guard plate and protected, effectively prevent
At pressure transducer connector mouth, hydrops further make hydrops splash on pressure transducer and interfere destruction to signal transmission.
Description of the drawings
Fig. 1 is the structural representation of existing pilot control system transition valve group;
Fig. 2,3 for the integrated valve group of this utility model pilot control system structural representation;
Fig. 4 is the structural representation of this utility model walking pilot valve;
It is pile-up valve shuttle valve connection sectional view that Fig. 5 is the sectional view of E-E in Fig. 3.
Wherein:1. transition valve, 2. pressure transducer, 3. shuttle valve, 11. or so swivel couplings, 12. dippers excavate joint, and 13.
Dipper discharging joint, 14. left lateral walk joint, and 15. right laterals walk joint, and 16. large arm rise joint, downspout connector under 17. large arm, and 18.
Scraper bowl excavates joint, 19. scraper bowl discharging joints, and 1 '. pile-up valve, 2 '. pressure transducer, 3 '. shuttle valve, 4. sensor guard plate,
5. walk pilot valve, 6. in hexagonal plug, 7. shuttle valve plug, 8.O type valves, 9. steel ball, 11 '. left and right swivel coupling, 12 '. dipper
Excavate joint, 13 '. dipper discharging joint, 14 '. left lateral walks joint, and 15 '. right lateral walks joint, and 16 '. large arm rises joint, and 17 '.
Downspout connector under large arm, 18 '. scraper bowl excavation joint, 19 '. scraper bowl discharging joint.
Specific embodiment
With reference to the accompanying drawings and examples this utility model is further illustrated.
Fig. 2,3 for the integrated valve group of this utility model pilot control system structural representation.As Figure 2-3, it is a kind of to dig
The pick machine integrated valve group of pilot control system, including pile-up valve 1 ', pressure transducer 2 ', shuttle valve 3 ', sensor guard plate 4 and connect
Head and flexible pipe;Wherein to be built in pile-up valve 1 ' interior for shuttle valve 3 ';Pressure transducer 2 ' has 7, and each pressure transducer 2 '
Connector mouth is arranged towards a side of pile-up valve 1 ';Sensor guard plate 4 be fixed on pile-up valve 1 ' it is upper, and near pile-up valve 1 '
The lateral edges for being provided with 2 ' connector mouth of pressure transducer are arranged, and so can more thoroughly prevent pressure transducer connector
Mouth hydrops further make hydrops splash on pressure transducer and interfere destruction to signal transmission;And be connected to every on pile-up valve 1 '
One action joint is that left and right swivel coupling 11 ', dipper excavates joint 12 ', dipper discharging joint 13 ', large arm rising joint
16 ', downspout connector 17 ' under large arm, scraper bowl excavate joint 18 ' and 19 ' one end of scraper bowl discharging joint successively with each pressure sensing
Device 2 ' connector mouth connection, the other end with it is hose connection;Upper each action of pile-up valve 1 ' (left and right is turned round, dipper is excavated,
Dipper discharging, large arm rise, large arm decline, scraper bowl excavate, scraper bowl discharging) needed for guide oil will be passed by corresponding pressure
The collection signal of sensor 2 ' passes to controller;Left and right revolution action gathers a revolution signal by shuttle valve 3 ', and dipper is excavated, dipper
Discharging, large arm rise, large arm declines, scraper bowl is excavated, scraper bowl discharging action respectively gathers signal by pressure transducer 2 ', and totally 7
Individual pressure transducer completes the collection of pilot system pressure signal.
Fig. 4 is the structural representation of this utility model walking pilot valve.As shown in figure 4, the 2 of the left and right walk signal of collection
Individual pressure transducer 2 ' is installed into walking on pilot valve 5, i.e., a kind of excavator integrated valve group of pilot control system also includes
Walking pilot valve 5, is provided with 2 pressure transducers 2 ', and the connector mouth of the two pressure transducers 2 ' on walking pilot valve 5
Joint 14 ' is walked with left lateral for one to be connected, another is walked joint 15 ' with right lateral and is connected, and then complete by the two pressure transducers 2 '
The collection of left and right walk signal in pairs.
It is pile-up valve shuttle valve connection sectional view that Fig. 5 is the sectional view of E-E in Fig. 3.As shown in figure 5, it is interior to be built in pile-up valve 1 '
Shuttle valve 3 ' include positioned at 1 ' surface of pile-up valve, the interior hexagonal plug 6 being arranged at 1 ' opening of shuttle valve and be located at pile-up valve 1 ' it is interior
Portion, the steel ball 9 for setting gradually from the bottom up, O-ring 8 and shuttle valve plug 7.
The size of the integrated valve group of excavator pilot control system that this utility model is provided is 285mmX85mmX75mm
(long X width X is high), with respect to existing pilot control system transition valve group, overall dimension is greatly reduced;In addition, pile-up valve adopts aluminum
Prepared material, alleviates overall weight, improves the reliability of mounting bracket;Furthermore, the pressure transducer on pile-up valve is horizontal
Pile-up valve side is arranged at, and is provided with sensor guard plate and protected, be effectively prevent at pressure transducer connector mouth
Hydrops further make hydrops splash on pressure transducer and interfere destruction to signal transmission.
It is although the above-mentioned accompanying drawing that combines is described to specific embodiment of the present utility model, not new to this practicality
The restriction of type protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, ability
Various modifications or deform still in protection model of the present utility model that field technique personnel are made by need not paying creative work
Within enclosing.