WO2007116628A1 - 電気駆動作業車 - Google Patents
電気駆動作業車 Download PDFInfo
- Publication number
- WO2007116628A1 WO2007116628A1 PCT/JP2007/055305 JP2007055305W WO2007116628A1 WO 2007116628 A1 WO2007116628 A1 WO 2007116628A1 JP 2007055305 W JP2007055305 W JP 2007055305W WO 2007116628 A1 WO2007116628 A1 WO 2007116628A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- battery
- pair
- body frame
- vehicle
- electric motor
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/34—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines
- E02F3/3414—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines the arms being pivoted at the rear of the vehicle chassis, e.g. skid steer loader
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/2058—Electric or electro-mechanical or mechanical control devices of vehicle sub-units
- E02F9/2062—Control of propulsion units
- E02F9/207—Control of propulsion units of the type electric propulsion units, e.g. electric motors or generators
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/2058—Electric or electro-mechanical or mechanical control devices of vehicle sub-units
- E02F9/2079—Control of mechanical transmission
Definitions
- the present invention comprises a vehicle body frame mounted on a traveling body equipped with a device, a device provided on the vehicle body frame, and a driving force generator provided inside the vehicle body frame.
- the vehicle body frame force S is provided on the traveling device, and a work device such as a bucket arm is provided at the front end of the vehicle body frame.
- a work device such as a bucket arm is provided at the front end of the vehicle body frame.
- Inside the body frame is an engine room that houses the engine.
- a counterweight is provided on the inner side of the body frame to balance the weight with the gear device attached to the front part of the body frame.
- the power source of a vehicle as described above is an engine, and the engine is driven to drive a hydraulic pump that supplies hydraulic pressure for driving a power shovel device, a turning motor, and the like. ing.
- a vehicle other than the engine as the power source in consideration of the influence on the surrounding environment, such as the power of generating exhaust gas and noise power, in the case of a power train using the engine as a power source.
- exhaust gas is not emitted and noise is low. Therefore, a method of running the vehicle with electric power or turning on the hydraulic pump to operate the work device can be considered.
- an object of the present invention is to provide a work vehicle having a battery disposed inside the vehicle body.
- a vehicle according to the present invention is attached to a body frame, a traveling body attached to the body frame (for example, the traveling device 5 in the embodiment), and a body frame ⁇
- a device for example, the loader device 20 in the embodiment
- a driving force generator for example, the electric motor 7 1 in the embodiment
- the vehicle body frame has a pair of side frames provided on the left and right sides of the work vehicle, and the work device is attached to the pair of side frames so that the base end side can swing up and down.
- a pair of lift arms (for example, the arm 21 in the embodiment) and a bucket attached to the tip of the pair of lift arms so as to be able to swing up and down. It is configured to include an electric motor for traveling the traveling body by transmitting the driving force, the electric motor and a combination of battery or large-capacity capacitor or a battery and a large capacity capacitor for supplying electric power to.
- the traveling body includes a pair of traveling bodies provided on the left and right sides of the body frame, and the electric motor is provided as a pair of electric motors on the left and right sides of the ⁇ force generation unit. It is preferable that the pair of traveling bodies can be independently driven by independently transmitting the E®J force to the pair of traveling bodies by independently controlling the driving of the electric motor. Further, it is preferable that the battery is housed in a battery housing portion formed in a flat shape at the lower part of the floor surface of the vehicle body frame. .
- a battery storage opening that opens toward the battery storage part is formed on the rear surface of the body frame, and the battery is inserted and bowed out from the battery storage opening. It is preferable.
- the battery is a lithium ion battery or an organic radical battery.
- the vehicle is configured to travel using a power source other than the engine as a power source, and the rotational driving force from the electric motor that receives the power supplied from the battery is provided to the wheel provided in the traveling device. Is transmitted to the traveling body, that is, the work vehicle is caused to travel.
- the vehicle according to the present invention does not travel using the engine as a power source, and therefore does not generate exhaust gas as the vehicle travels, and is generated in comparison with a vehicle using the engine as a power source. Since the noise generated is small, it is possible to suppress the adverse effects on the surrounding environment.
- the traveling body includes a pair of traveling bodies provided on the left and right sides of the body frame, and the electric motor is provided as a pair of electric motors on the left and right sides of the driving force generation unit, and the pair of electric motors are driven independently.
- the driving force can be transmitted to the pair of traveling bodies so that the pair of traveling bodies can independently travel. Therefore, the electric motor can be used as a source to turn or turn the car. It is possible to make the station «regular.
- ⁇ which generates heat such as a hydraulic pump and an electric motor
- ⁇ which generates heat such as a hydraulic pump and an electric motor
- ⁇ which generates heat such as a hydraulic pump and an electric motor
- ⁇ which generates heat
- the heat is dissipated toward the upper part inside the body frame, and the thermal effect on the battery can be suppressed.
- an oil cooler with a cooling fan is installed inside the body frame so that the heat from the hydraulic pump and electric motor is dissipated outside the vehicle, the effect of fl on the battery can be further reduced. It can be kept low.
- the degree of freedom of the arrangement configuration of the hydraulic pump or the like other than the battery can be increased. And stored in such a battery storage
- the battery can be easily exchanged by inserting and pulling out the existing battery through the battery storage opening that opens toward the battery storage portion on the rear surface of the vehicle body frame.
- Either a lithium ion battery or an organic radical battery may be used as a high-capacity rechargeable battery.
- an organic radical battery if used, the battery can be made lighter and charged in a shorter time. It is possible to make it.
- the combined configuration of the battery and the large-capacity capacitor can reduce the drooping caused by sudden overload. This is an effective means when the battery capacity of the lithium ion battery or organic radical battery is low.
- FIG. 1 shows an excavator loader as an example of a work vehicle according to the present invention
- FIG. 1 (a) is a plan view of the shovel loader
- FIG. 1 (b) is a left side view of the shovel loader.
- FIG. 2 is a rear view of the excavator loader.
- FIG. 3 is a front view of the excavator mouther.
- FIG. 4 is a block diagram showing a configuration of a hydraulic cylinder or the like provided in the excavator loader.
- Fig. 5 (a) is a left side view showing a part of the excavator loader in order to show an example of the arrangement of the electric motor and the like mounted on the excavator loader, and
- Fig. 5 b) is arranged side by side in the left and right direction of the shovel loader. It is a figure which shows typically arrangement configuration, such as an electric motor.
- FIG. 6 is a side view showing the periphery of the battery storage unit provided in the shovel loader for storing the battery.
- the shovel loader 1 includes a traveling device 5 having a crawler belt 3, a traveling device 5 attached to a pair of vehicle bodies 9, and a mouth attached to the vehicle body frame 9.
- the motor device 20 and an operator cabin 30 provided on a substantially central portion in the front-rear direction of the vehicle body frame 9 are configured.
- the traveling device 5 and the body frame 9 are collectively referred to as “vehicle 10” hereinafter.
- a pair of side frames 9 a protruding upward are formed on the left and right sides of the body frame 9.
- the vehicle body frame 9 includes an upper frame 9 b that is an upper part of the rear end of the vehicle 10 and extends between the pair of side frames 9 a, and a rear end surface of the vehicle 10.
- the rear frame 9c which is formed in the lower part of the 20-year-old perator cabin 30 and boarded in the 20-year-old perimeter cabin 30, has a flat plate-like floor surface 9d which can be used.
- the above-mentioned mouth device 20 is attached to the side frame 9a.
- the loader device 20 is swingable up and down at a pair of arms 21 that are pivotably pivoted up and down inside the pair of side frames 9a, and at the tip of the pair of arms 21.
- a lifting cylinder 2 3 that moves each of the pair of arms 21 up and down.
- the arm 21 has a rectilinear portion 2 1 a extending from the upper part of the side frame 9 a to the front side of the vehicle, and a bent portion 2 1 b that bends downward for a while as it advances from the tip of the rectilinear portion 2 la to the front side.
- the straight portion 2 1 a and the bent portion 2 1 b are integrated.
- a step portion 21c force S extending downward is formed between the distal end side of the rectilinear portion 21a and the proximal end side of the bent portion 21b. .
- the rod end of the hoisting cylinder 2 3 is pivoted to the straight part 2 1 a, and the cylinder tube side end force S of the hoisting cylinder 23 is pivoted to the S side frame 9 a.
- the arm 2 1 moves up and down.
- the arm 21 falls down to the front side of the vehicle and extends in the front-rear direction.
- a reinforcing sound attachment 25 extending in the left-right direction is attached.
- the reinforcing member 25 is located at a front position of the vehicle 10 in a state where the arm 21 is stored.
- the proximal end side of the bucket cylinder 24 is pivotally connected to the proximal side of the bent portion 21 b of the arm 21, and the distal end side of the bucket cylinder 24 is pivotally connected to the base portion of the packet 29.
- the bucket cylinder 24 expands and contracts, the bucket 29 swings up and down.
- excavation operation is performed in which the bucket 29 swings upward, and when the bucket cylinder 24 extends, the bucket 29 is swung downward. Perform soil movement.
- the operator cabin 30 told to the excavator loader 1 will be described.
- the pair of arms 21 described above is disposed on the outer side in the left-right direction of the operator cabin 30 installed at a substantially central portion in the front-rear direction of the vehicle 10.
- the operator cabin 30 is box-shaped, has an opening 31 that is open on the front side of the vehicle, and 'a pair of side plates 33 that extend upward with a predetermined interval in the left-right direction; and a pair of side plates
- a top plate portion 35 is provided which extends over the upper portion of the portion 33 and extends to the upper rear end of the pair of side plate portions 33 and covers the upper and rear portions of the operator cabin 3 ⁇ .
- a plurality of substantially rectangular holes 39 are formed in the pair of side flanges 33, and the inside of the talented cabin 3 ⁇ and the outside of the vehicle are in communication with each other through the holes 39.
- An operator seat 12 is provided inside the operator cabin 30 so that an operator can sit in a state of facing the front side of the vehicle. Further, on the left and right sides of the operator seat 12, an operating device 14 for operating the loader device 20,) is installed (see FIG. 3).
- the operation device 1 4 has a left operation lever 1 4 a and an operation lever 1 4 b. When the left operation lever 1 4 a is tilted, the traveling device 5 operates and the right operation lever 1 4 b When the tilting operation is performed, the arm 21 of the mouth device 20 is moved up and down, and the bucket 29 is operated for excavation and soiling.
- the operator cabin 30 is pivotably pivoted about the rear side of the body frame 9 as a pivot center.
- the operator cabin 30 can be swung upward with the pivoting position as the pivot center.
- the hydraulic pump 7 2 etc. stored in the body frame 9 that is the drive source of the traveling device 5 and the guard device 20 are exposed to ⁇ ⁇ . It can be in a state of being let go.
- the controller 10 0 provided in the body frame 9 for controlling the traveling device 5 and the loader device 20 outputs an output from the operation device 14 when the operation device 14 is operated.
- the control signal is output to the hydraulic control valve 80, and the hydraulic control valve 80 is connected to the arm cylinder 23, etc. based on the control signal from the controller 100.
- ⁇ 3 ⁇ 4 Controls oil supply / discharge.
- the hydraulic control valve 80 controls the supply and discharge of hydraulic oil discharged from the hydraulic pump 7 2 driven by the motor by receiving the supply of electric power. Move 1 up and down to make bucket 2 9 1 ⁇ 3 ⁇ 4.
- the hydraulic control knob / rev 8 0 is the bucket control valve corresponding to the arm cylinder 23 that moves the arm 2 1 up and down, the arm control valve 8 3 corresponding to the arm cylinder 2 3, and the bucket cylinder 2 4 operating the bucket 2 9. Consists of levs 8 4. Then, the supply control of the oil that flows to the arm cylinder 23 and the like is performed by controlling the norp opening degree of the arm control vano rev 8 3 and the bucket control bao lev 8 4 in the hydraulic control baler rep 80. In addition, a control signal is output from the controller 1 0 0 to the motor variable speed control device 1 1 5 according to the operation of the operation device 1 4. When a control signal is output toward 1 1 5, the motor speed of the electric motor 7 1 can be changed or the electric motor 7 1 force can be controlled to output an appropriate torque. Can be changed freely.
- the traveling device 5 is driven to load the loader device 20.
- ⁇ such as an electric motor 71, a hydraulic pump 72, etc., which are power sources for operation, are arranged.
- a pair of left and right electric motors 7 1 and 7 1 that are driven by power S supplied from the battery 50 are provided in the left and right sides at the rear of the body frame 9.
- Motor shaft is arranged so that the longitudinal direction of the motor shaft is aligned with the left-right direction of the vehicle 10) (see Fig. 2).
- Each of the electric motors 71 is an induction motor, and AC SEE is supplied by an inverter provided in the controller 100.
- the electric motor 71 is a motor whose rotor can be rotated by the interaction of the rotating magnetic field generated by passing an alternating current through the winding on the stator side and the induced current generated on the rotor side. It is possible to change the turning speed by means of the shift control device 1 1 5.
- the electric motor 71 is not limited to the above-described induction motor, but may be an interior magnet type synchronous motor (IPM (InteriorPeniianent Magnetic) motor) or a servo motor.
- IPM Internal magnet type synchronous motor
- the I PM motor is a type of reluctance motor in which a rare earth permanent magnet is embedded in the rotor (iron), and the counter effort between the permanent magnet and the stator, and the rotor, stator, and suction repulsion force.
- High efficiency high output relative to the supplied power
- the electric motor 71 is composed of a servo motor, it can detect the shaft angle of the rotating shaft of the electric motor 71 and has a built-in detection means such as a resonance lever or an encoder.
- the electric motor 71 is provided in a pair on the inner side of the vehicle body frame 9 and supplies electric power from the battery 50 to each of the electric motors 7 1 and 7 1 under the control of the controller 100. This makes it possible to control the rotation of the electric motors 71 and 71 independently. In this way, by controlling the rotation of the electric motors 7 1 and 7 1 independently on the left and right sides, of the traveling devices 5 attached to the vehicle body frame 9 in a pair of left and right, for example, only the left traveling device 5 is driven. Thus, the vehicle 10 can be turned. It is preferable that a reduction gear is provided connected to the output shaft of the electric motor 71 and the travel device 5 is driven via the reduction gear. Thereby, the electric motor 71 can be reduced in size.
- a battery storage portion 17 is formed in a planar shape below the floor surface 9 d of the body frame 9, and the battery 50 is stored in the battery storage portion 17.
- the devices that generate heat such as the electric motor 7 1 and the hydraulic pump 7 2, are located inside the body frame 9 and above the battery 50, so that the hydraulic pump 7 2, etc. ), Heat generated from the hydraulic pumps 7 and 2 etc. is dissipated toward the upper part of the vehicle body frame 9, and it is possible to suppress the thermal effect on the battery 50. If an oil cooler with a cooling fan is installed inside the vehicle body frame 9 so that heat from the hydraulic pump and electric motor can be dissipated outside the vehicle 10, The impact can be kept lower. Then, by setting the storage position of the notch 50 below the ⁇ of the hydraulic pump 72, etc., the degree of freedom of the arrangement configuration of the hydraulic pump 72, etc. other than the battery 50 can be increased.
- the battery 50 is a high-capacity rechargeable lithium-ion battery or organic radical battery, and the bow I can enter and exit in the front-rear direction (arrow ⁇ direction) with respect to the vehicle 10 by a slide mechanism 60 described later. It is.
- the battery 50 is arranged in a plane at a position below the floor surface 9d of the body frame 9, the vehicle's 10's standing height is lowered to improve the stability of the vehicle. Can be made.
- the heat dissipating area is larger than that in the case of being arranged in a rectangular parallelepiped shape because of being arranged in a plane, and it is possible to effectively dissipate heat generated from the battery 50 itself.
- organic radical battery an organic radical material which is a kind of thermoplastic resin is used as the positive S material.
- the organic radical battery is characterized by a higher capacity than a lithium ion battery, a fast electrochemical reaction rate, and a short charge time.
- organic radical batteries do not use heavy metal oxides such as lithium cobaltate and lithium manganate as electrodes, so they are lighter and have less impact on the environment.
- a large-capacity capacitor (not shown) may be used instead of the battery 50 as a power supply source for the electric motor 71.
- a secondary battery system in which the battery 50 and a large-capacity capacitor (not shown) are connected in parallel to combine the battery 50 and the large-capacity capacitor may be used.
- the arrangement configuration of the notch 50 inside the vehicle body frame 9 is not limited to the planar arrangement configuration as described above, but is formed by stacking the batteries 50 so as to form a rectangular parallelepiped as a whole. Also good.
- the rectangular battery 50 is connected, for example, in the vicinity of the rear frame 9 c, that is, the 1 ⁇ 3 ⁇ 4oil pump 7 in FIG. 1 (b). Place 3 forces S at the position where they are placed, and set ⁇ such as other electric motors 7 1 and hydraulic pumps 7 2 to the left and right of the vehicle 10 by placing them horizontally above the battery 50. It is preferable to arrange them side by side.
- a controller 100 that controls the overall operation of the loader device 20 is provided above the battery 50 and in front of the hydraulic pump 72. As described above, the controller 100 receives an operation signal based on the operation of the operation device 14 and outputs a control signal to the hydraulic control norb 80.
- the hydraulic control valve 80 can control the supply and discharge of hydraulic fluid to the arm cylinder 23 and the like based on the control signal from the controller 100 to cause the arm 21 to move up and down. It is. By swinging the operator cabin 30 upward, the controller 100 can be exposed and exchanged.
- this controller 100 Since this controller 100 has an amplifier and other electronic ⁇ 3 ⁇ 4 products, it is particularly vulnerable to vibration, and the controller is driven by vibration caused by driving of the traveling device 5 and operation of the mouth device 20. In order to prevent malfunction of the roller 1 100, it is placed on an elastic body 1 0 1 that absorbs vibration such as anti-vibration rubber (of course it may be a panel) .
- the traveling device 5 is driven by the driving force of the electric motor 71 transmitted from the electric motor 71 as described above as a drive source, and can travel the vehicle 10.
- the sprocket 5 a located on the same axis as the rotating shaft of the electric motor 71 and strung over the crawler belt 3 rotates with the rotation of the electric motor 71 to drive the crawler belt 3.
- the traveling device 5 has a plurality of driven wheels in the order of a driven wheel 5 b, a driven wheel 5 c, a driven wheel 5 d, a driven wheel 5 e, and a driven wheel 5 f in the order of the vehicle 10. 3 is wound around these driven wheels 5b to 5f together with the sprocket 5a.
- the vehicle 10 is provided with a pair of left and right electric motors 7 1, 7 1, and can be controlled so that these are independently left and right.
- the driving devices 5 and 5 can be independently driven by transmitting the driving forces of the electric motors 7 1 and 7 1 to the devices 5 and 5, respectively. Thereby, it is possible to change the driving speed of the traveling device 5 between right and left, or to drive only one of the pair of left and right traveling devices 5.
- the driving speed of the traveling device 5 is different between right and left, it is possible to turn the vehicle 10; 3 ⁇ 4 or turn left, and either of the pair of left and right traveling devices 5 If only this is driven, the vehicle 10 can be rotated locally in the clockwise or counterclockwise direction in plan view.
- the traveling device 5 is not limited to the force traveling device configured by a crawler in which the crawler belt 3 is wound around the sprocket 5a and the driven wheels 5b to 5f.
- a plurality of wheels that are rotationally driven by transmitting the force S of the electric motor 71 using the motor 71 as a ⁇ source may be provided on the left and right sides of the vehicle 10.
- it is composed of a plurality of wheels: Even if ⁇ , by controlling the left and right pair of electric motors 7 1 and 7 1 to be independently ⁇ , It is possible to perform a turn or a clockwise or counterclockwise local rotation.
- the electric motor 17 1 for driving the loader device 20, that is, for driving the hydraulic pump 72, is used as the electric device for the traveling device 5. It may be arranged at the rear end of the vehicle 10 (in front of the rear frame 9c) separately from the motor ⁇ 1. like this Under the arrangement configuration, as shown in Fig. 5 (b), the hydraulic oil is supplied to the arm cylinder 23, etc. based on the control signal from the controller 100, which consists of the turning, drive control banoreb 81, etc. Hydraulic control valve for exhaust control 8 0 force Electric motor 1 7 1 is provided adjacent to the left side of vehicle body 10.
- an oil tank 1 73 for storing the oil that causes the loader device 20 to be removed is provided adjacent to the right side of the vehicle body 10 of the electric motor 17 1. That is, at the rear end of the vehicle 10, the hydraulic control valve 80, the electric motor 17 1, and the 1 ⁇ 3 ⁇ 4oil tank 1 73 are arranged in parallel from the left side to the right side of the vehicle 10.
- a battery storage opening 4 4 as shown in FIG. 6 is formed at the rear end of the vehicle 10, and this battery storage opening 4 4 is a hinge that is juxtaposed to the left and right at the lower opening end of the battery storage opening 4 4.
- 4 9 and 4 9 can be opened by swinging up and down the storage lid 4 8 that can swing up and down (hinge 4 9 is placed in parallel with the upper opening end of battery storage opening 4 4
- the storage lid 48 may be swung upward). Then, with the battery storage opening 4 4 opened, the battery 50 is inserted into and removed from the front and rear through the battery storage opening 44, so that the battery storage section 1 covered with the lower force bar 43 can be obtained. 7 can be taken out and stored.
- a plurality of cylindrical batteries 50, 50,... are arranged vertically and stored side by side in the front-rear and left-right directions so as to be spread inside the drawer portion 45.
- the hook-shaped lock levers 47 and 47 that can be engaged with the lever locking portion (not shown) provided on the battery storage portion 17 are displaced. Is also attached to the front and back.
- the lock lever 47 can be engaged and disengaged so as to be interlocked with a release operation of a lock release portion (not shown) provided on the handle 46.
- the battery 50 is a lithium-ion battery or an organic radical battery as described above, and has a smaller volume that generates the same than a lead battery that is conventionally used as a battery for a work vehicle. It is possible to make the base smaller, and accordingly, it is possible to secure a wide space for arranging a hydraulic pump, an electric motor, and the like. Furthermore, since lithium ion batteries and organic radical batteries are lighter than lead batteries, they have the advantage that they can be replaced easily and can be charged in a short time.
- the slide 6 0 that moves the box-shaped drawer 45 that houses the battery 50 back and forth is configured as follows.
- the slide mechanism 60 is provided on both the left and right sides of the bow I protruding part 45.
- the beam-like rail 61 extending substantially horizontally in the front and rear direction, and the left and right sides of the body frame 9 are taken as the longitudinal axis direction.
- a pair of front and rear rollers 6 2 a and 6 2 b that rotate in the front-rear direction while contacting the lower surface of the rail 61 with the attached shaft as the center of rotation, and the left and right inside the body frame 9 are attached with the longitudinal axis as the longitudinal axis direction.
- the front stop 63 has a columnar rear stop 64 provided to extend vertically at the rear end of the rail 61.
- the slide mechanism 60 provided on the right side of the drawer portion 45 is also configured to include the rail 61 as described above.
- battery maintenance refers to battery 50 replacement.
- Maintenance of the battery 50 can be done by opening the storage lid 48 and swinging it downward, with the person holding the handle 4 6 provided in the drawer 4 5 Then, operate the lock lever 4 7 to remove it, and pull out the drawer 4 5 until the front of the rear stopper 6 4 contacts the roller 6 2 b. At this time, when the battery 50 is exposed from the battery storage portion 17, the battery 50 can be replaced. 'Lenore 6 1 and 6 1 are both clamped by lower rollers 6 2 a and 6 2 b and upper rollers 6 5 and 6 5. Thus, the drawer portion 4 5 pulled out by the vehicle 10 is prevented from dropping out from the vehicle 10 force.
- the drawer portion 45 is pushed into the battery housing portion 17 until the back surface of the front stopper 63 comes into contact with the roller 62 a while holding the handle 46. Lock the lock so that the drawer part 4 5 is not pulled forward by engaging the roller-shaped lock lever 4 7 with the lever stopper (not shown) when the roller 6 2 a contacts the front stopper 63. Is done. Then, the series of maintenance is completed by swinging the storage lid 48 upward and closing the battery storage opening 44, and it is possible to shift to a drilling rod or the like.
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Operation Control Of Excavators (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07738752.0A EP2011925B1 (en) | 2006-04-12 | 2007-03-09 | Electrically driven working vehicle |
US12/294,471 US7900722B2 (en) | 2006-04-12 | 2007-03-09 | Electrically driven industrial vehicle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006110136A JP2007284873A (ja) | 2006-04-12 | 2006-04-12 | 作業車 |
JP2006-110136 | 2006-04-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007116628A1 true WO2007116628A1 (ja) | 2007-10-18 |
Family
ID=38580929
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/055305 WO2007116628A1 (ja) | 2006-04-12 | 2007-03-09 | 電気駆動作業車 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7900722B2 (ja) |
EP (1) | EP2011925B1 (ja) |
JP (1) | JP2007284873A (ja) |
CN (1) | CN101421465A (ja) |
WO (1) | WO2007116628A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2058171A3 (en) * | 2007-11-08 | 2009-12-02 | Hinowa S.p.A. | Minidumper with electric drive |
CN104328818A (zh) * | 2014-10-28 | 2015-02-04 | 广西玉柴重工有限公司 | 一种磷酸铁锂电池式电动挖掘机 |
CN108331051A (zh) * | 2018-02-05 | 2018-07-27 | 罗弟容 | 多功能推土机 |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
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US20100207744A1 (en) * | 2004-11-10 | 2010-08-19 | Caterpillar Inc. | System And Method For Power And Data Delivery On A Machine |
US8100210B2 (en) * | 2006-02-07 | 2012-01-24 | Takeuchi Mfg. Co., Ltd | Electrically driven industrial vehicle |
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Also Published As
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JP2007284873A (ja) | 2007-11-01 |
US20100224426A1 (en) | 2010-09-09 |
EP2011925A1 (en) | 2009-01-07 |
US7900722B2 (en) | 2011-03-08 |
EP2011925A4 (en) | 2014-10-29 |
CN101421465A (zh) | 2009-04-29 |
EP2011925B1 (en) | 2016-11-16 |
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