JPH07253141A - Traction machine - Google Patents

Abstract

PURPOSE:To especially attach an electrically driven body having a motor to a chain winding mechanism section having a chain in a traction machine, and to display various functions on the electrically driven body. CONSTITUTION:In an electrically driven body 10 provided in a chain winding mechanism section 23, the state of various functions of the electrically driven body 10, namely normal state charging caution, and LED expression to show fastening/loosening or the like, are displayed on a display section 100 to realize the safe, reliable action of the electrically driven body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traction machine, and in particular,
The present invention relates to a novel improvement for mounting an electric drive unit having a motor on a chain winding mechanism unit having a chain to obtain a portable electric configuration and displaying various functions on the electric drive unit.

[0002]

2. Description of the Related Art In the case of a lever hoist used for re-installing a pillar of a building as a traction machine of this type that has been conventionally used, as shown in FIG. It is obliquely arranged between the intermediate portion 1b and the upper portion 2c. That is, the first lever hoist 3
In the case of, a pair of hooks 4 provided at both ends of the chain 4
a and 4b are provided between the intermediate portion 1b and the lower portion 2a of the pillars 1 and 2. In the case of the second lever hoist 5, the wire rope 6 connected to the upper portions 2c of the pillars 1 and 2 is connected to the chain 8 via the wire clip 7, and the chain 8 is connected to the pillar 8 via the second lever hoist 5. 1 is connected to the lower part 1a.

[0003]

Since the conventional traction machine tooth is constructed as described above, the following problems exist. That is, in the above-mentioned conventional example, each lever hoist is operated by input, and the tension adjustment is largely due to the feeling and experience of the operator, and it is a heavy physical work for the operator. As the average age of workers increased, the work was extremely difficult.

The present invention has been made in order to solve the above problems, and in particular, it is portable and has an electric drive unit having a motor mounted on a chain winding mechanism section having a chain. It is an object of the present invention to provide a traction machine having an electric structure having a function.

[0005]

The tractor according to the present invention comprises:
In a tractor in which a chain is moved by a sprocket, a chain winding mechanism section having the sprocket, an electric drive body provided in the winding mechanism section for rotating the sprocket, and provided in the electric drive body. A motor driver for controlling the drive of the motor, a display section provided on the electric drive body to indicate a normal state of the electric drive body and a charging warning, and an LED display provided on the display section to indicate Simul / Yulm. , Power on /
The power switch for turning off and the Simul / Yulm switch corresponding to the LED display are provided.

[0006]

In the towing machine according to the present invention, since the chain winding mechanism is equipped with the electric driving body having the motor, the first hook of the chain is connected to, for example, the upper part of the column, and the chain winding mechanism is connected. When the second hook fixed to the column is connected to the lower part of the other column and the motor of the electric drive is driven by remote control, the chain is wound up through the sprocket and can be pulled. Even if the electric drive body is separated from the chain winding mechanism section in this state, the chain is not loosened by the sprocket and the mechanical brake. Further, the operation plate of the electric drive body shows a normal state of the electric drive body and a warning for charging, and a summary and a Yurumi operation of the chain are displayed, so that the operation state of the electric drive body can be kept safe. It can be done with confirmation.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of a towing machine according to the present invention will be described in detail below with reference to the drawings. It should be noted that the same or equivalent parts as those of the conventional example are designated by the same reference numerals for description. Figure 1
It is a block diagram which shows schematically the whole structure of the towing machine by this invention. In FIG. 1, reference numeral 10 is an electric drive body having a built-in DC type motor 11, and the motor 11 has a switch 12 for starting and stopping the motor 11 and a rotation direction changeover switch 13. The motor driver 14 is connected, and the motor 11 and the motor driver 14 are configured to be driven by the secondary battery 15. The motor driver 14 and the secondary battery 15 are connected to a first wireless transceiver 51a having a first antenna 50a.

An overload protection portion 17 (for example, a well-known torque limiter structure) is connected to the motor 11 via a speed reducer 16. The overload protection portion 17 has a rotating coupling projection 17a protruding therefrom. It is provided.

The speed reducer 16 is provided with a rotation speed changeover switch 18, and the rotation speed changeover switch 18 is connected with a first tension display meter 19 of a display unit 100 connected to the motor driver 14. . The first tension display meter 19 is configured to calculate the motor generated torque from the current value flowing through the motor 11 by the motor driver 14, and convert the torque into tension from the reduction ratio of the speed reducer 16 and the sprocket diameter of the sprocket 20 described later. Thus, the function can be obtained without using the torque sensor, and the scale conversion of the tension display meter 19 can be changed in conjunction with the change of the reduction ratio.

A well-known one-touch coupling 21 provided at one end 10a of the electric drive body 10 allows the electric drive body 10 to be detachably attached to a chain winding mechanism portion 23 having a chain 22 wound around the sprocket 20. A second hook 25 is rotatably attached via a rotation mechanism 26 to the handle portion 24 that is attached and hangs downward at one end 23a of the chain winding mechanism portion 23.

At the one end 23a, the coupling projection 17a is formed.
Is provided with a coupling recessed body 27 which is connected to the sprocket 20 via a chain winding mechanism speed reducer 28, and which has one end 2 of the chain 22.
2a is composed of a free end, and a first hook 29 is connected to the other end 22b. Although not shown, the chain winding mechanism speed reducer 28 is coupled to a mechanical brake that momentarily functions when the operation is stopped.

The traction machine 30 shown in FIG. 1 is constructed as shown in FIGS. 2 and 3, and the secondary battery 15 is detachably provided at the end of the handle portion 24. As the one-touch coupling 21 described above, a well-known structure of a ring slide type coupling is adopted as shown in FIGS. 2 and 3.

Further, in a state where the chain 22 is pulled by tension, even if the electric drive unit 10 is separated from the chain winding mechanism section 23, a mechanical brake ( (Not shown)
Therefore, the chain 22 is configured so as not to loosen. The switch 12 also serves as a start / stop command and a rotation speed setting command. When the switch 12 is inserted deeply, the rotation of the motor 11 becomes faster, and the rotation of the motor 11 is caused by the reduction gear 16, the overload protection unit 17, 17 on the connecting protrusion
a, 27 in the coupling concave portion, 28 speed reducer for the chain winding mechanism
The forward and reverse rotations of the sprocket 20 can be performed via the.

The rotation speed changeover switch 18 is mechanically connected to the speed reducer 16 and can freely change the meshing combination of the gears (not shown) therein. In this case, there are two stages. The first tension display meter 19 is configured to select a reduction gear ratio, and the display scale of the first tension display meter 19 can be switched in association with the rotation speed changeover switch 18.

The first radio transmitter / receiver 51a is a second remote control body 60 which is constructed separately from the electric drive body 10.
The wireless transmitter / receiver 51b is wirelessly coupled to each other via the antennas 50a and 50b, and the remote operation body 60 has the same display function as that of the battery 61, the microcomputer 62 including a CPU, and the first tension display meter 19. Have second
A tension display device 19a, a rotation direction command switch 63 for issuing a rotation direction command of the motor 11, and a plurality of the electric drive units 10 (a single unit in FIG. 1, but a plurality of units).
And a selection switch 64 for freely selecting any of the above, the second wireless transceiver 51b is connected to the microcomputer 62, the battery 61 and the selection switch 64, and via the second wireless transceiver 51b. All information of the remote control 60 is configured to be able to communicate with the towing machine 30 via the first wireless transceiver 51a.

On the display unit 100, a power switch 101 for turning on / off a power source, a first display 102 showing a normal state of the power supply driver 10, and a second display 103 showing a charging warning of the power supply driver 10. , Simul display 104b and Yurm display 104a showing the direction of the chain 22 and the direction of the Yumi.
An LED display 104 consisting of and a summary / Yulm switch 104A interlocking with the LED display 104 are provided, and all operating states for performing various operations of the power supply driver 10 are displayed on the display unit 100. It is configured.

Next, the operation will be described. First, after turning on the power switch 101 of the power supply driver 10 and turning on the switch 12 for the motor, the pillar 1
The second hook of the chain winding mechanism 23 is locked to the locking portion 40 of the lower portion 1a of the chain, and the first hook 29 of the chain 22 is locked.
Is locked to the wire clip 7 of the wire rope 6, the rotation direction command switch 63 of the remote control 60
This rotation direction command is generated by operating the microcomputer 62 and the first and second wireless transceivers 51a, 51a.
b, the motor 11 is driven via the motor driver 14, the sprocket 20 is rotated through the speed reducer 16, the overload protection device 17, and the chain winding speed reducer 28, and the chain 22 is wound up. You can adjust the building condition of 1. The start / stop command is also issued from the remote control 60.

In the above-mentioned case, the rotation direction of the chain 22 can be freely remote-controlled via the rotation direction command switch 63, and the tension of the chain 22 is displayed by the tension display meters 19 and 19a. The tension state of the chain 22 can be checked in real time by the remote control 60. Further, as shown in FIG. 5, by using the selection switch 64 of the remote operation body 60, the plurality of towing machines 30 provided on the wires 6 of each pillar 1 are individually remotely operated by using one remote operation body 60. However, the tension of the wire 6 can be freely adjusted.

Further, the normal state of the electric drive unit 10 is shown by the first display 102, and when the state of the battery 15 is a state to be charged, the second display 103 shows a charging alarm. Further, by selecting any one of the Simul / Yulm switches 104, either the Simul or Yulm display 104a or 104b by winding or returning the chain 22 is displayed by the LED.

Next, the structure shown in FIGS. 6 to 9 shows another embodiment of the traction machine according to the present invention, in which the electric drive unit 10 and the remote control unit 60 are the wireless transceivers described above. 5
A first connector 51aA and a second connector corresponding to 1a and 51b
Using the connector 51bA, each connector 51aA, 51b
Since the configuration is such that the cable 70 is connected between A and the other configurations and operations are the same as the configurations and operations of FIGS. 1 to 5 described above, the same parts are denoted by the same reference numerals and the description thereof will be omitted. Omit it. It should be noted that each display shown on the display unit 100 of the electric drive body 10 is similarly displayed on the remote operation body 60. When the remote operation body 60 is not used, the operation is performed while looking at the display unit 100 of the electric drive body 10. Can be operated.

[0021]

The traction machine according to the present invention can obtain the following effects. 1. By driving the chain winding mechanism section by an electric drive that operates remotely, it is possible to eliminate the muscular work of the operator. Further, the work time required for the lever repeat work of the conventional lever hoist can be shortened. 2. Each display (normal status, charging warning, LED display of Simul / Yulm, power switch) provided on the operation plate of the electric drive can display the operation and operation state of the electric drive. Safe operation can be performed while confirming the operation and operation.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an overall configuration of a towing machine according to the present invention.

FIG. 2 is a front view showing the actual configuration of FIG.

FIG. 3 is a right side view of FIG.

FIG. 4 is a perspective view showing a remote control unit.

FIG. 5 is a configuration diagram showing a towed state.

FIG. 6 is a schematic view showing another embodiment of the towing machine according to the present invention.

FIG. 7 is a front view showing the actual configuration of FIG.

FIG. 8 is a right side view of FIG.

FIG. 9 is a configuration diagram showing a pulled state.

FIG. 10 is a front view showing an electric drive body.

11 is a plan view of FIG.

FIG. 12 is a configuration diagram showing a conventional configuration.

[Explanation of symbols]

 10 Electric Driver 11 Motor 14 Motor Driver 20 Sprocket 23 Chain Winding Mechanism 100 Display 101 Power Switch 102, 103 First and Second Display 104 LED Display 104A Simul / Yulm Switch

Claims (1)

[Claims] 1. A traction machine in which a chain (22) is moved by a sprocket (20), and a chain winding mechanism section (23) having the sprocket (20) and the chain winding mechanism section (23). Provided on the sprocket (20)
An electric drive body for rotating the motor, and the electric drive body
A motor driver (14) provided in (10) for controlling the drive of the motor (11), a normal state of the electric drive body (10) provided in the operation plate of the electric drive body (10) and a charging warning (100) having first and second displays (102, 103) showing
And an LED display (104) provided on the display unit (100) to indicate Simul / Yulm, a power switch (101) for turning on / off a power source, and a Simul / Yulm switch (104A) corresponding to the LED display (104) ), And a towing machine.