JP2001287652A - Cooling fan moving device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify a complicated structure of wheels of a moving device for a cooling fan mounted on a carriage due to direct coupling to a driving motor. SOLUTION: Wheels directly coupled to the driving motor are fixed in diagonal positions of the carriage via a turning part. Ball receivers are attached to other diagonal positions of the carriage, and direction change is performed by the turning part. Also, as another example, two screws are fixed to a bottom of the carriage and these screws are rotated by the directly coupled driving motor for performing advance and reverse and traverse movement.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a moving device for a cooling fan, and more particularly to a moving device for an engine cooling fan used in a power measuring system such as a chassis dynamometer.

[0002]

2. Description of the Related Art In a chassis dynamometer in which a driving wheel of a passenger car or a special vehicle is placed on a chassis roller instead of on a road and tested, an engine cooling fan is disposed at a front position of the vehicle. A fan is blown to a vehicle to cool an engine. FIG. 4 shows a conventional engine cooling device, in which a trolley 1 is provided with a cooling fan 2 and which moves forward and backward through wheels 3 (3A, 3B) for forward and backward movement attached to the trolley 1. Is possible. As shown in FIG. 1B, wheels 4 (4A, 4B) for right and left movement are attached to the carriage 1 via a lift device (not shown).

[0003]

In the conventional engine cooling device, a driving motor is connected to each of the wheels 3 and 4, and when the vehicle is moving forward and backward, as shown in FIG. The wheels 4A and 4B are in a reduced state,
The vehicle moves forward by the forward rotation of the drive motors of the wheels 3A and 3B, and moves backward by the reverse rotation. When the engine cooling device is traversed, the wheels 4A and 4B are extended via the lift device to lift the bogie 1 and the wheels 3 as shown in FIG. By rotating, the engine cooling device is traversed.
Therefore, this type of device requires a motor for driving each wheel and a motor for moving up and down the traversing wheels, and the structure is complicated, and much time is required for the installation work. In addition, since the size of the equipment is large, the size of the cooling device itself is inevitably large, and there are problems such as an increase in the installation space of the device and restrictions on a loading port when the device is carried into a laboratory.

An object of the present invention is to provide a small engine cooling device.

[0005]

SUMMARY OF THE INVENTION The present invention is directed to a moving device in which wheels driven by a drive motor are attached to a lower portion of a bogie having a cooling fan, wherein a drive motor connected to the wheels and one of the drive motors are provided. A driving part is constituted by a swiveling part which is fixed and the other is fixed to the bogie side and is rotatable; two driving parts are arranged at diagonal positions of the bogie; The ball receiver is arranged at each position.

Further, according to the present invention, two sets of screws, one end of which is connected to the drive motor and the other end of which is supported by a bearing, are arranged at the lower part of the bogie via the drive motor and the bearing.

[0007]

FIG. 1 is a first embodiment showing an embodiment of the present invention, in which a cooling fan 2 is arranged in an upper cover of a carriage 1. 5 is a ball receiver, 10 is a driving unit,
The drive unit 10 is configured as shown in FIG. 2. As shown in FIG. 2C, the drive unit 10 is used for two diagonal wheels out of four wheels, and the other two diagonal wheels are used. The free ball receiver 5 is used in place of the wheel. The drive unit 10 includes a drive motor 11 directly connected to wheels 12, a turning unit 13 and a turning lever 14. The turning unit 13
Although it is configured to be able to turn 90 degrees, it has a fixed part 13A fixed to the bogie side and a rotating part 13B fixed to the motor 11 for that purpose, and the illustration therebetween is omitted. A shaft is fixed to one side so that the shaft center does not shift during rotation, and a hole into which this shaft is inserted is drilled and rotatably fitted to the other side. It is configured to be easy to move. Reference numeral 14 denotes a turning lever fixed to the rotating portion 13B, and reference numeral 15 denotes fixing means for fixing the fixing portion 13A and the rotating portion 13B, and a pin or the like is used.

When the apparatus constructed as described above is installed on the front of the equipment under test, it is moved by other transporting equipment as in the past up to the vicinity of the laboratory installation. The movement is performed by a drive motor 11 mounted diagonally.

That is, the forward and backward movement is performed by two drive motors 11.
Is connected to a power source, a driving force is generated on the two wheels directly connected to the motor, and the vehicle moves forward or backward. At this time, since the ball receivers 5 arranged at the other diagonals are in a free state, they rotate in the driving direction of the wheels 12.

Next, in the case of traversing, the turning means 13 is released by releasing the fixing means 15 fixing the turning part 13 and moving the turning lever 14 as shown in FIG. 2 (b). , The drive motor 11 and the wheels 12 can turn to a position of 90 degrees, and the two wheels can be traversed by fixing the two wheels at an arbitrary angle. Therefore, according to this embodiment, since the lift device and the like can be omitted and forward and backward movement and traversing can be performed by two drive motors, the device can be downsized, and the work of switching between forward and backward movement and left and right movement can be easily performed. It is what becomes.

FIG. 3 shows another embodiment.
In the figure, reference numerals 20 and 21 denote drive motors, which are attached to the lower part of the bogie 1 as shown in FIG. 22,
Reference numeral 23 denotes a screw, one end of which is a drive motor 20, 2 respectively.
It is directly connected to one rotating shaft. The other ends of the screws 22 and 23 are respectively connected to bearings 24 and 2 fixed to the lower portion of the truck 1.
5 for pivoting. The screws 22, 23 are
(A) As shown in the figure, the threading direction is reversed, and the threaded portion is in direct contact with the ground surface.

The operation of the above-described apparatus will be described. (C) is an operation explanatory view, in which the screws 22 and 23 also rotate forward (clockwise) or reverse (counterclockwise) according to the rotation direction of the drive motors 20 and 21. now,
When the respective drive motors are started to rotate the screw 22 in the normal direction and the screw 23 in the reverse direction, the screws are rotated inward as shown in FIG. When the screw 22 is rotated counterclockwise and the screw 23 is rotated clockwise, the cooling fan advances as shown in FIG. When each screw is rotated clockwise or counterclockwise as shown in FIG. 3C, the cooling fan moves left or right.

Also in this embodiment, the apparatus is downsized, and forward, backward and left / right movement can be easily performed only by selecting and controlling the rotation directions of the two drive motors. By making the number of rotations of the individual drive motors different, the diagonal movement becomes possible.

[0014]

As described above, according to the present invention, the structure of the moving device of the cooling fan is simplified and downsized, the switching between forward and backward movement and traversing movement is easy and the installation work can be performed in a short time. It has the effect of being able to do so.

[Brief description of the drawings]

FIG. 1 is an external view showing an embodiment of the present invention.

FIGS. 2A and 2B show an embodiment of the present invention, wherein FIG. 2A is a configuration diagram of a driving unit, FIG. 2B is an explanatory diagram of a turning state, and FIG. 2C is an explanatory diagram of a mounting position of the driving unit.

FIGS. 3A and 3B show another embodiment of the present invention, wherein FIG. 3A is a bottom view, FIG. 3B is an outline view, and FIG.

4A and 4B show a conventional cooling fan, wherein FIG. 4A is a side view of the cooling fan, and FIG. 4B is a rear view of the cooling fan.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Dolly 2 ... Cooling fan 3 ... Wheel for forward / backward movement 4 ... Wheel for left / right movement 5 ... Ball receiver 10 ... Drive part 11, 20, 21 ... Drive motor 12 ... Wheel 13 ... Revolving part 22, 23 ... Screw 24, 25 …bearing

Claims (2)

[Claims] 1. A moving device in which wheels driven by a drive motor are attached to a lower portion of a truck having a cooling fan, wherein a drive motor connected to the wheels, one is fixed to the drive motor, and the other is the truck. A driving unit is constituted by a swivel unit fixed to the side and rotatable, and two driving units are arranged at diagonal positions of the bogie, and ball receivers are respectively provided at other diagonal positions of the bogie. A cooling fan moving device, which is arranged and configured. 2. The vehicle according to claim 1, wherein one end is connected to said drive motor, and the other end is provided with two sets of screws supported by bearings at a lower portion of said bogie via said drive motor and bearings. 2. The cooling fan moving device according to 1.