JP2010273579A - Electrically driven tending machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem that in a form in which an electric motor itself is rotated and driven around a motor shaft fixed to an operation frame, the form is a tine rotor drum, has a large rotation diameter and a complicated constitution, easily gains in weight and increases power consumption. <P>SOLUTION: The electric motor 4 projecting the motor shaft 3 to both right and left sides is fixed to the lower end part of the operation frame 2 having a handle 1 in the upper part, and a tine rotor shaft 5 is connected to each of the right and left parts of the motor shaft 3 and rotated and driven. The tine rotor shaft 5 is attached to and detached from the outside part of the motor shaft 3. In the operation, the motor shaft 3 maintains a form in which the motor shaft together with the electric motor 4 is attached and fixed to a fixed position relative to the lower end part of the operation frame 2 and the tine rotor shaft 5 is easily attached and detached and exchanged. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a walking type electric management machine having a claw rotor driven by an electric motor.

  A fixed motor shaft is provided at the lower end of the work frame, the electric motor is rotated around the fixed motor shaft, and tillage claws are planted on the outer peripheral surface of the motor drum covering the outer periphery of the electric motor to rotate integrally. A configuration (for example, see Patent Document 1) is known.

JP-A-11-168901 (first page, FIG. 1).

  In the form in which the electric motor itself is rotationally driven around the motor shaft fixed to the work frame, the claw rotor drum form is used, the rotation diameter is increased, the configuration is complicated, the weight is easily increased, and the power consumption is also increased. Also, wiring is difficult and maintainability is also difficult.

  According to the first aspect of the present invention, an electric motor 4 having a motor shaft 3 projecting from the left and right sides is fixed to a lower end portion of a work frame 2 having a handle 1 at the top, and a claw rotor shaft 5 is attached to each of the left and right motor shafts 3. Are connected to each other and driven to rotate. When the handle 1 is gripped and the electric motor 4 is driven, the left and right motor shafts 3 are driven by the electric motor 4, and the claw rotor shaft 5 connected to the motor shaft 3 is driven. By rotating the claw rotor shaft 5, the rotating grounded soil surface is plowed or a weeding action is performed. The claw rotor shaft 5 can be attached to and detached from the outer portion of the motor shaft 3. At this time, the motor shaft 5 is maintained in a fixed position with respect to the lower end portion of the work frame 2 together with the electric motor 4 so that the claw rotor shaft 5 can be easily attached and detached.

  According to a second aspect of the present invention, in the first aspect, the intermediate shaft (6) is fitted to the outer peripheral portion of the motor shaft (3), and the claw rotor shaft (5) is connected to the outer peripheral portion of the intermediate shaft (6). The motor shaft (3), the intermediate shaft (6), and the claw rotor shaft (5) are connected so as to rotate integrally. The intermediate shaft 6 and the claw rotor shaft 5 are sequentially formed into a large-diameter pipe shape with respect to the motor shaft 3 and are connected to each other. Between the fitting portions of the intermediate shaft 6 with respect to the motor shaft 3 The pin 7 is fitted and inserted so as to be integrally rotated, and the pin 7 is fitted and fitted so as to be integrally rotated over the fitting portion of the claw rotor shaft 5 with respect to the intermediate shaft 6. The claw rotor shaft 5 and the intermediate shaft 6 are removed by removing the pins 7. At the time of work such as middle tillage weeding by rotation of the claw rotor shaft 5, the intermediate shaft 6 and the claw rotor shaft 5 which are fitted and connected to the outer periphery with respect to the motor shaft 3 are sequentially formed in a large diameter. A stable rotational driving state can be maintained even when resistance is applied.

  According to a third aspect of the present invention, the intermediate shaft 6 has a motor case 8 that covers the electric motor 4. When the intermediate shaft 6 is fitted and attached to the motor shaft 3, the motor case 8 is integrally formed at the inner end of the intermediate shaft 6, so that the work frame 2 is driven by the motor case 8. The motor 4 is fitted and covered from both left and right sides. For this reason, since the motor case 8 immediately covers the electric motor 4 by attaching the intermediate shaft 6 to the left and right sides of the motor shaft 3, the attachment and detachment of the intermediate shaft 6 and the motor case 8 can be simplified. The maintenance of the electric motor 4 can be easily performed.

  In the first aspect of the present invention, since the electric motor 4 is integrally attached to the lower end portion of the work frame 2, the claw rotor shaft 5 can be easily and easily attached to and detached from the motor shaft 3. In addition, the electric circuit or wiring of the electric motor 4 can be simplified. In addition, since the electric motor 4 is mounted as a separate component from the claw rotor shaft 5, it is possible to reduce the rotation diameter of the middle plowing grass of the claw rotor shaft 5 and to expand the specification range or selection range of the claw rotor shaft 5. can do.

  According to the second aspect of the present invention, since the claw rotor shaft 5 is attached to and detached from the motor shaft 3 through the intermediate shaft 6, the claw rotor shaft 5 having a large diameter or a different shaft form from the small diameter motor shaft 3 is used. The claw rotor shaft 5 can be exchanged easily and easily in accordance with the fitting form. The claw rotor shaft 5 is attached to the claw rotor shaft 5 on the outer periphery of the intermediate shaft 6 via the intermediate shaft 6 fitted on the outer periphery of the motor shaft 3. A stable working state can be maintained by the rotation of the claw rotor shaft 5.

  According to the third aspect of the present invention, since the motor case 8 is integrally attached to the intermediate shaft 6, the intermediate motor 6 is immediately attached to the motor shaft 3. It can coat | cover and can clean and maintain the electric motor 4 easily and easily.

The exploded front view which shows the attachment state of a nail | claw rotor axial part. The side view of an electric management machine. The front view of an electric management machine. The perspective view of a battery case part.

  Based on the drawings, the electric management machine has a claw rotor 9 driven by the electric motor 4 so that the handle 1 can be operated. The electric motor 4 at the lower end portion of the work frame 2 made of pipe material or the like is fixed, and a pair of left and right handles 1 are provided at the upper end portion, and the operator is driven by the electric motor 4 while holding the handle 1. The claw rotor 9 can be advanced while being rotationally driven, and the soil surface can be plowed. A rotor cover 10 covering the electric motor 4 and the upper part of the claw rotor 9 driven by the electric motor 4 is provided on the work frame 2, and a battery 11 is mounted on the rotor cover 10 to constitute a battery case 12. A bracket 13 is provided on the rear side of the work frame 2, and a resistance bar 14 is provided at the rear end so that the vertical movement can be adjusted. The operator presses the resistance bar 14 against the ground to adjust the propulsion resistance. However, the tilling work is performed by the driving force of the claw rotor 9.

  Here, in this electric power management machine, electric motors 4 with projecting motor shafts 3 on both the left and right sides are fixed to a lower end portion of a work frame 2 having a handle 1 on the upper side, and claw rotor shafts 5 are attached to the left and right motor shafts 3. It is set as the structure of the electric management machine which connects and rotates. When the electric motor 4 is driven by holding the handle 1, the left and right motor shafts 3 are driven by the electric motor 4, and the claw rotor shaft 5 connected to the motor shaft 3 is driven. By rotating the claw rotor shaft 5, the rotating grounded soil surface is plowed or a weeding action is performed. The claw rotor shaft 5 can be attached to and detached from the outer portion of the motor shaft 3. At this time, the motor shaft 5 is maintained in a fixed position with respect to the lower end portion of the work frame 2 together with the electric motor 4 so that the claw rotor shaft 5 can be easily attached and detached.

  Further, the intermediate shaft 6 is fitted to the outer peripheral portion of the motor shaft 3, the claw rotor shaft 5 portion is fitted to the outer peripheral portion of the intermediate shaft 6, and the pin is interposed between the fitting portions of the intermediate shaft 6 portions. 7 is inserted and connected so as to rotate integrally. The intermediate shaft 6 and the claw rotor shaft 5 are sequentially formed into a large-diameter pipe shape with respect to the motor shaft 3 and are connected to each other. Between the fitting portions of the intermediate shaft 6 with respect to the motor shaft 3 The pin 7 is fitted and inserted so as to be integrally rotated, and the pin 7 is fitted and fitted so as to be integrally rotated over the fitting portion of the claw rotor shaft 5 with respect to the intermediate shaft 6. The claw rotor shaft 5 and the intermediate shaft 6 are removed by removing the pins 7. At the time of work such as middle tillage weeding by rotation of the claw rotor shaft 5, the intermediate shaft 6 and the claw rotor shaft 5 which are fitted and connected to the outer periphery with respect to the motor shaft 3 are sequentially formed in a large diameter. A stable rotational driving state can be maintained even when resistance is applied.

  Further, the intermediate shaft 6 has a motor case 8 that covers the electric motor 4. When the intermediate shaft 6 is fitted and attached to the motor shaft 3, the motor case 8 is integrally formed at the inner end of the intermediate shaft 6, so that the work frame 2 is driven by the motor case 8. The motor 4 is fitted and covered from both left and right sides. For this reason, since the motor case 8 immediately covers the electric motor 4 by attaching the intermediate shaft 6 to the left and right sides of the motor shaft 3, the attachment and detachment of the intermediate shaft 6 and the motor case 8 can be simplified. The maintenance of the electric motor 4 can be easily performed.

  The electric motor 4 attached to the lower end of the work frame 2 is electrically rotated by wiring between the battery 11 and the battery 11 mounted in the battery case 12, and the motor shaft 3 projects toward the left and right sides.

  The electric motor 4 is configured to project the motor shaft 3 to the left and right side portions as a single configuration, but the electric motor 4 is configured as a pair of left and right, and the left and right motor shafts 3 are configured to be electrically rotated separately. In addition, the output rotation can be controlled by operating the switch lever 15 in each of the left and right handles 1. With the switch lever 15 on the gripping side as in the side clutch form, the electric motor 4 on this side can be rotated easily by increasing the electric rotation.

  A battery case 12 that houses a battery 11 for driving the electric motor 4 is provided with a main switch 16, a charger 17, a controller 18, and the like. The battery 11 can be charged by inserting the input cord 19 socket 20 of the controller 18 into the power outlet 21. In this case, with the battery case 12 removed from the work frame 2 and the rotor cover 10, the battery case 12 can be moved to the charging position where the outlet 21 is located and charged.

  The intermediate shaft 6 is attached to the left and right ends of the motor shaft 3 in order to connect the claw rotor shaft 5 to the outside. However, if the intermediate shaft 6 is not provided, the claw rotor shaft 5 is directly connected to the motor shaft 3. It can be set as the form which inserts and attaches. The intermediate shaft 6 forms a bag-shaped shaft hole 22 into which the outer periphery of the motor shaft 3 is fitted, and an enlarged cup-shaped motor case 8 is integrally formed on the end opening side of the shaft hole 22. When the intermediate shaft 6 is fitted to the motor shaft 3, the motor case 8 covers the outer peripheral portion of the electric motor 4 so that the tip edge rotates close to the side surface of the work frame 2. Constitute. Further, in order to prevent intrusion of mud or the like into the motor case 8, it is possible to provide a sealing material that closes a gap between the motor case 8 and the electric motor 4 or the work frame 2. is there.

  In the present embodiment, tilling claws 23 are arranged on the outer peripheral portion of the intermediate shaft 6. This tillage claw 23 is attached to a bracket disk 24 formed around the intermediate shaft 6 by tightening bolts 25.

  The intermediate shaft 6 is attached to the motor shaft 3 by forming pin holes 26 and 27 between the shaft hole 22 portion of the intermediate shaft 6 and the motor shaft 3 portion. A pin 28 having a length substantially equal to or slightly shorter than that is inserted to stop the intermediate shaft 6.

  The claw rotor shaft 5 is provided with a tilling claw 29 on the outer peripheral portion. A shaft hole 30 having a large diameter is formed at the end of the shaft, and the shaft hole 30 is fitted to the outer peripheral portion of the intermediate shaft 6. Thus, the claw rotor shaft 5 can be prevented from being pulled out by inserting the pin 7 between the pin holes 31 and 32 formed in the claw rotor shaft 5 and the intermediate shaft 6. A hairpin 33 can be inserted into the pin 7 to prevent it from being removed. In addition, each tilling claw 29 is configured to be attached to the bracket disk 34 on the outer periphery of the claw rotor shaft 5 by tightening bolts 35, similarly to the tilling claw 23. Reference numeral 36 denotes an end disk rotatably provided at the outer end of the claw rotor shaft 5.

1 Handle 2 Work frame 3 Motor shaft 4 Electric motor 5 Claw rotor shaft 6 Intermediate shaft 7 Pin 8 Motor case 9 Claw rotor

Claims (3)

  An electric motor (4) with a motor shaft (3) protruding on both the left and right sides is fixed to the lower end of a work frame (2) having a handle (1) at the top, and a claw rotor shaft is attached to each of the left and right motor shafts (3). (5) It connects and rotationally drives, The electric management machine characterized by the above-mentioned.   An intermediate shaft (6) is fitted to the outer periphery of the motor shaft (3), and a claw rotor shaft (5) is fitted to the outer periphery of the intermediate shaft (6). The electric management machine according to claim 1, wherein the claw rotor shaft (5) and the claw rotor shaft (5) are coupled so as to rotate integrally.   The electric management machine according to claim 1 or 2, wherein the intermediate shaft (6) has a motor case (8) covering the electric motor (4).

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