JPS5814102Y2 - Forklift traction motor mounting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mounting structure for a traction motor installed in a battery powered forklift truck, and particularly to a mounting structure for a vehicle in which an axle tube is rotatable with respect to the vehicle body.

BACKGROUND ART In recent years, some industrial vehicles, particularly forklift trucks, are equipped with a traction motor instead of an internal combustion engine, and are driven by a battery for the traction motor using this as a drive source.

For example, as shown in FIGS. 1 and 2, in a single traction motor, the tip of the traction motor 1 is attached to a gear carrier 3 fixed to a differential case 2 with bolts 4, etc.
(Place the rear end in contact with the motor mount bracket 7, which is secured with bolts 6 to the vehicle body frame 5, for example).
It was installed at 8.

A rotating shaft (not shown) of the traction motor 1 is inserted into the gear carrier 3 to differentially drive a group of gears (not shown) in the differential case 2 and drive the wheels 10 via the axle 9. Under heavy usage conditions of forklift trucks, the traction motor 10
The brushes (not shown) are severely worn and are inspected once every two to three months.

When inspecting this brush, due to the space inside the vehicle,
Remove the bolt 8 from the rear end portion 1a of the traction motor 1 and attach it to the drive axle 9 as shown by the chain line in FIG.
The brush is rotated downward or upward together with the gear carrier 3, differential case 2, and axle tube 11 to facilitate brush inspection.

In the figure, 12 is a vibration-proof cushioning material.

However, in such a conventional traction motor mounting structure, as described above, the rear end portion 1a of the traction motor 1 is in contact with the mounting surface 7a of the motor mount bracket 7, and even if the bolt 8 fixing the two is removed, However, the motor mount bracket 7 becomes an obstacle and the traction motor 1 cannot be rotated.

Therefore, the motor mount bracket T is also attached to the vehicle body frame 5.
Since the motor mount bracket 7 has to be removed, it takes a lot of time and effort, and when assembling the traction motor 1, the removed motor mount bracket 7 has to be attached, which is an extra task, which greatly reduces work efficiency. was there.

In view of such conventional problems, the present invention provides a gap between the traction motor and the motor mount bracket to an extent that does not prevent rotation of the traction motor.
This allows the traction motor to rotate without removing the motor mount bracket.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings, in which the same parts as those in the conventional structure are denoted by the same reference numerals.

In other words, in the mounting structure of the present invention, as shown in FIG. When rotating the traction motor 1 downward or upward, the mounting position of the motor mount bracket 7 is moved rearward (in the figure) to the extent that the rear end 1a of the traction motor 1 does not interfere with the mounting surface 7a of the motor mount bracket 7. a spacer 20 that moves to the right) to provide a gap S between the motor mount bracket 7 and the rear end of the traction motor 1, and has a thickness approximately equal to the length t of the gap S within the gap S. It is arranged.

Then, the traction motor 1 is fixed to the mounting surface 7a of the motor mount bracket 7 by tightening the bolts 8 through the spacer 20.

With the above configuration, when inspecting the flange of the traction motor 1, it is possible to rotate the traction motor 1 by simply removing the bolt 8' and the spacer 20, which greatly reduces the work effort required when assembling the traction motor 1. This has an excellent practical effect in that work efficiency can be improved.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view showing the conventional mounting structure of a traction motor installed on a forklift truck and the rotating state of the traction motor, and Fig. 2 is an enlarged front view of the conventional mounting structure of the traction motor. 3 are enlarged front views showing an embodiment of the mounting structure for a traction motor according to the present invention. 1...Traction motor, 2...Differential case, 5...Vehicle frame (vehicle body), T.
...Motor mount bracket, 8...
Bolt (fixing means), 9... Drive axle, 11... Axle tube, S...
Gap, 20...Spacer.

Claims (1)

[Scope of utility model registration request] In a traction motor for a forklift, the tip end is fixed to a differential case provided on an axle tube rotatably supported with respect to the vehicle body, and the rear end is fixed to the vehicle body via a motor mount bracket. A gap is provided between the motor mount bracket and the traction motor so that the rear end of the traction motor does not interfere with the motor mount bracket when the fixing means to the motor mount bracket is released and the traction motor rotates around the drive axle. A mounting structure for a tossing forklift traction motor, characterized by a spacer being removably installed in this gap.