CN201330414Y - Electric hydraulic excavating machine - Google Patents
Electric hydraulic excavating machine Download PDFInfo
- Publication number
- CN201330414Y CN201330414Y CNU2008201137270U CN200820113727U CN201330414Y CN 201330414 Y CN201330414 Y CN 201330414Y CN U2008201137270 U CNU2008201137270 U CN U2008201137270U CN 200820113727 U CN200820113727 U CN 200820113727U CN 201330414 Y CN201330414 Y CN 201330414Y
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- electric
- cabin
- driver
- excavating machine
- revolving dial
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Abstract
The utility model provides an electric hydraulic excavating machine, in particular to a dynamic system in which an electric motor is used for replacing an internal combustion engine and serves as a hydraulic excavating machine on a generally known hydraulic excavating machine. A main motor (300) is used for driving a hydraulic oil pump (500), and a cooling motor (400) is used for cooling hydraulic oil; in order to enable the electric hydraulic excavating machine to be continuously coupled with an external power line for electric power acquisition, a conductive ring (100) is mounted on the electric hydraulic excavating machine and can enable the electric hydraulic excavating machine to be continuously coupled with the external power line during work; and besides, an electrical control box (200) is adopted for controlling circuit operation of the electric hydraulic excavating machine.
Description
Technical field:
The utility model relates to a kind of electric hydaulic excavator.
Background technology:
Known in the market hydraulic crawler excavator is by the dynamical system of internal combustion engine as work, and its basic comprising has traveling vehicle frame chassis, revolving dial, driver's cabin and is installed in equipments such as swing arm on the revolving dial, dipper, scraper bowl.This with the internal combustion engine be the known hydraulic crawler excavator of power because work the time needs combustion fuel, discharge the disadvantageous gas of health, when job space sluggish in air circulation, especially human body is caused adverse influence.The electric hydaulic excavator that the utility model provides is suitable for power taking occasion particularly sluggish in air circulation easily to be used.
Summary of the invention:
The purpose of this utility model is to provide a kind of and replaces internal combustion engine as dynamical system with motor on known hydraulic crawler excavator, on the driver's cabin canopy, conducting ring is installed, electric control box, main motor, oil cooling blower fan are installed on revolving dial, make the external electric line of force and electric hydaulic excavator realize that electric power is connected by conducting ring, electric power can be transported on the electric hydaulic excavator, use an electric control box to realize the electric hydaulic excavator is carried out the control of work.This electric hydaulic excavator structure is simple, and is easy to manufacture, easy to install, and flexible operation is particularly suited for place sluggish in air circulation and uses.
Technical solution of the present utility model is such, comprise conducting ring, electric control box, main motor, oil cooling blower fan, traveling vehicle frame chassis, revolving dial, driver's cabin canopy, scraper bowl, swing arm, dipper, feature is: traveling vehicle frame has revolving dial above the chassis, driver's cabin is housed above the revolving dial, the driver's cabin end face is equipped with conducting ring, the seat front side edge of driver's cabin is installed electric control box, the seat back installing main motor of driver's cabin, and the rear end side of driver's cabin is installed the oil cooling blower fan.
Main motor connects the driving hydraulic oil pump.
Conducting ring has standing part and rotating part, and standing part is fixed with driver's cabin and connected with the internal electric circuit, and rotating part is connected with external power cord.
Jackshaft have lead (101A, 102A, 103A) with the axle on collector ring (101B, 102B, 103B) be connected.
The utility model compared with prior art has following advantage: replace internal combustion engine to make the dynamical system of hydraulic crawler excavator with motor on known hydraulic crawler excavator, the cooling of hydraulic oil pump, hydraulic oil is all by driven by power.Motor is compared with internal combustion engine, and is simple in structure, easy to maintenance, cheap, and equal-wattage uses down, and the expense of motor electricity consumption is far below the expense of fuel of internal combustion engine.Owing to do not need combustion fuel, the electric hydaulic excavator can be in the occasion operate as normal of rarefaction of air, sealing, and does not have noxious gas emission, environmental protection.
Description of drawings:
It is such that structure of the present utility model constitutes:
Fig. 1 is that overall structure of the present utility model is installed front view.
Fig. 2 is that overall structure of the present utility model is installed stereogram.
Fig. 3 is a conducting ring fundamental diagram of the present utility model.
Fig. 4 is electric control theory figure of the present utility model.
Fig. 5 is that main motor of the present utility model connects figure with hydraulic oil pump.
Among Fig. 1-Fig. 5, the walking car is driven chassis (1), revolving dial (2), driver's cabin (3), swing arm (4), dipper (5), scraper bowl (6), conducting ring (100), electric control box (200), main motor (300), oil cooling blower fan (400), hydraulic oil pump (500), conduction ring stand (110), jackshaft (120), internal spline (301), flange (302), positioning spigot (303), lead (101A, 102A, 103A), collector ring (101B, 102B, 103B), conducting block (101C, 102C, 103C).
The specific embodiment:
With reference to Fig. 1-Fig. 5, replace internal combustion engine to provide needed power with motor for hydraulic crawler excavator, wherein a main motor is used to drive hydraulic oil pump, and a cooling motor is used to cool off hydraulic oil; Obtain electric power in order to make the electric hydaulic excavator continue to connect, a conducting ring be installed on the electric hydaulic excavator with the external electric line of force, this conducting ring can make the electric hydaulic excavator when working maintenance and the external electric line of force continue connect; Adopt the control of an electric control box realization to motor work.As shown in Figure 2, on the driver's cabin top of electric hydaulic excavator, a conducting ring (100) has been installed, has been realized that the electric hydaulic excavator and the external electric line of force keep connecting.An electric control box (200) is installed on electric hydaulic excavator platform, by this electric control box to the running of motor on the hydraulic crawler excavator with stop and other power devices are realized control.Main motor (300) drive installation hydraulic oil pump (500) thereon on the revolving dial provides high-pressure work hydraulic oil to the hydraulic system on the excavator.One table oil cold wind motor (400) also is installed on the revolving dial, is used to cool off hydraulic oil.
The utility model has adopted a conducting ring (100) to realize that the external electric line of force is connected with the electric hydaulic excavator, can be transported on the electric hydaulic excavator electric power.As shown in Figure 3, conducting ring is installed on the driver's cabin of revolving dial, can rotate with platform for conduction ring stand (110) with the part that driver's cabin connects, conduction briquetting (101C on it, 102C, 103C) flexible, can remain pressed against the collector ring (101B of jackshaft (120), 102B, 103B), and jackshaft (120) can rotate with respect to the conduction ring stand, promptly when conduction ring stand and driver's cabin rotation, it is motionless relatively that jackshaft (120) keeps, jackshaft has lead (101A in (120), 102A, 103A) be connected with collector ring on the axle respectively, and further be connected with the external electric line of force.Conducting ring can be under situation about external cable being transported on the electric hydaulic excavator, avoids the external electric line of force to rotate together to be twisted off to damage and cause security incident because of following platform.
Electric control box (200) is formed (as Fig. 4) by major loop and control loop.Major loop inserts power supply from the fixed part 110 of conducting ring, by air switch QF power supply is carried out protection control.Main motor (300) is controlled by contactor KM.What main motor adopted is the starting of Y type, and the working method of △ type operation is switched by the time-delay of contactor KM/ △ and contactor KMY and to be realized.Switching Power Supply is converted to the DC24V safe voltage with AC220V.The air switch QF that closes, power supply indicator HL1 is luminous.Press starting button QA1, the KM coil gets electric, and KM assists the moving together contact closure, forms self-locking, KM main contacts closure; Energization delay relay KT1 coil gets electric, and the KMY coil gets electric, KMY main contacts closure, and KMY assists the break contact disjunction, and to KM △ interlocking, this moment, motor was a Y type reduced-voltage starting.After the delay time of KT1 arrived, KT1 time-delay break contact disconnected, the KMY coil losing electricity, and the KMY main contacts disconnects; The time-delay moving together contact closure of KT1, KM △ coil gets electric, KM △ main contacts closure, KM △ assists the moving together contact closure, forms self-locking, the operation of motor total head, HL2 is the operation indication; KM △ assists the break contact disjunction, the KT1 coil losing electricity, so the contact reset, and to the KMY interlocking.Be higher than when setting value when the PT oil temperature gauge detects oily temperature, its output signal line has electricity output, and the KA5 coil gets electric, KA constant open contact closure, and the KA2 coil gets electric, cooling motor (400) operation.SA1 is a stop button, presses SA1 and stops.FR is an overheat switch, moves when main motor overheating, realizes protection.
As Fig. 5, main motor (300) is a threephase asynchronous, is installed on the platform by bolt, and its output axle head has internal spline (301), can be directly and the power shaft of hydraulic oil pump (500) link.Output at main motor (300) also has a connecting flange (302), is processed with positioning spigot (303) and joint bolt hole on the connecting flange, the location that the realization hydraulic oil pump is installed and fastening.Replace the power source of internal combustion engine as hydraulic crawler excavator with motor, its power can be selected by the peak power of hydraulic system, calculates the peak power of the hydraulic system of hydraulic crawler excavator by following formula:
N＝Q×P×1000×f
In the formula
N: power, unit K W
Q: hydraulic system maximum stream flow, the M of unit
3/ S
P: hydraulic system maximum working pressure (MWP), units MPa
F: the loading coefficient of electric hydaulic excavator, according to the operating characteristic of electric hydaulic excavator, f=0.7～0.9.
Oil cooling blower fan (400) is used to cool off hydraulic oil by contactor KA2 control.
Claims (4)
1. electric hydaulic excavator, comprise conducting ring, electric control box, main motor, the oil cooling blower fan, the walking car is driven the chassis, revolving dial, driver's cabin, scraper bowl, swing arm, dipper, the car that it is characterized in that walking is driven revolving dial (2) above the chassis (1), driver's cabin (3) is housed above the revolving dial (2), driver's cabin (3) end face is installed conducting ring (100), the seat front side edge of driver's cabin (3) is installed electric control box (200), the revolving dial (2) of the seat back lower place of driver's cabin (3) is gone up installing main motor (300), and the rear end side of revolving dial (2) is installed oil cooling blower fan (400).
2. electric hydaulic excavator according to claim 1 is characterized in that electric control box (200) has major loop and control loop, and major loop connects power supply from the standing part (110) of conducting ring.
3 electric hydaulic excavators according to claim 1 is characterized in that main motor (300) connects driving hydraulic oil pump (500).
4. electric hydaulic excavator according to claim 1 is characterized in that conducting ring has standing part and rotating part, standing part and driver's cabin (3) the conducting electricity that is fixedly connected, and rotating part is connected conducting with external power cord.
5. electric hydaulic excavator according to claim 1, it is characterized in that jackshaft (120) have lead (101A, 102A, 103A) with the axle on collector ring (101B, 102B, 103B) be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201137270U CN201330414Y (en) | 2008-12-29 | 2008-12-29 | Electric hydraulic excavating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201137270U CN201330414Y (en) | 2008-12-29 | 2008-12-29 | Electric hydraulic excavating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201330414Y true CN201330414Y (en) | 2009-10-21 |
Family
ID=41223792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201137270U Expired - Fee Related CN201330414Y (en) | 2008-12-29 | 2008-12-29 | Electric hydraulic excavating machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201330414Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182219A (en) * | 2011-03-28 | 2011-09-14 | 上海三一重机有限公司 | Power system of electric excavator |
| CN102839695A (en) * | 2012-09-17 | 2012-12-26 | 张海林 | Multifunctional miniature forklift for coal mine |
| CN103184751A (en) * | 2011-12-30 | 2013-07-03 | 中国科学院沈阳自动化研究所 | All-electric servo excavator |
| CN113147359A (en) * | 2021-05-14 | 2021-07-23 | 三一汽车起重机械有限公司 | Power system and control method for work machine |
-
2008
- 2008-12-29 CN CNU2008201137270U patent/CN201330414Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182219A (en) * | 2011-03-28 | 2011-09-14 | 上海三一重机有限公司 | Power system of electric excavator |
| CN102182219B (en) * | 2011-03-28 | 2012-12-26 | 上海三一重机有限公司 | Power system of electric excavator |
| CN103184751A (en) * | 2011-12-30 | 2013-07-03 | 中国科学院沈阳自动化研究所 | All-electric servo excavator |
| CN103184751B (en) * | 2011-12-30 | 2015-10-14 | 中国科学院沈阳自动化研究所 | A kind of all-electric servo excavator |
| CN102839695A (en) * | 2012-09-17 | 2012-12-26 | 张海林 | Multifunctional miniature forklift for coal mine |
| CN113147359A (en) * | 2021-05-14 | 2021-07-23 | 三一汽车起重机械有限公司 | Power system and control method for work machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091021 Termination date: 20121229 |