JPH0441317Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a rotation testing device for a wheel unit installed on a rail vehicle.

(Prior art) Wheel units, which are equipped on rail vehicles and consist of wheels, bearing boxes, gear drive devices, etc., are periodically removed from the rail vehicle and rotated in order to ensure safety when the rail vehicle is running. A wheel rotation test is performed using a testing device. This rotation test device positions and sets the wheel unit on a test stand, and connects the input shaft of the gear drive device of the wheel unit in conjunction with the output shaft of the motor-driven drive device, and drives the wheel at high speed to drive the gear. This test tests the actual performance, durability, etc. of the device.

In this rotation test device, the output shaft and the input shaft of the wheel unit are connected by bolts using a flexible rotary joint with an alignment function. There is a risk that nuts and nuts may be scattered. Therefore, in the past, a rotating test device was installed inside the test chamber, and workers were forced to leave the test room during the test.

(Problem to be solved by the invention) However, in the past, as mentioned above,
During the test, workers are required to leave the room, so they must enter and leave the test room for each test, such as loading and unloading the wheel unit into the test room, and positioning and setting the wheel unit on the test equipment. It was necessary to repeat this process repeatedly, resulting in extremely low work efficiency.

Another disadvantage was that it required a large dedicated space to construct an independent testing room, and the cost of the entire equipment, including the testing room, was high.

The present invention was developed with attention to these circumstances, and it not only improves work efficiency, but also
An object of the present invention is to provide a rotation test device for a wheel unit for a track vehicle, which allows rotation tests to be carried out safely with low equipment costs.

(Means for Solving the Problem) In order to achieve the above object, the invention of claim (1) includes a drive motor and an output shaft driven by the drive motor, and the output shaft is used for a track vehicle. A rotation test device for a wheel unit for a track vehicle, which is configured to be interlocked with an input shaft of a gear drive device that pivotally supports a wheel of the wheel unit and rotate the wheel, wherein a connection between the output shaft and the input shaft is provided. The area is covered with a cover that can be slid open and closed in the connection direction.

In the invention of claim (2), in the invention of claim (1), a closure detection sensor is provided for detecting whether or not the cover is in the closed set state, and the sensor detects whether the cover is in the closed set state. The drive motor is configured to be operable only when it is detected that the motor is present.

In the invention of claim (3), in the invention of claim (1), a collision detection sensor is provided for detecting a collision when an article collides with the cover from inside, and the collision is detected by the sensor. Then, the drive motor is configured to be stopped.

(Function) According to the structure of the invention of claim (1) above, by sliding the cover to the open state, the output shaft of the rotation testing device and the input shaft of the wheel unit can be connected and disconnected, and both When the shafts are connected, the cover can be slid closed and the drive motor can be driven to perform a rotation test. Even if bolts, etc. are scattered during the rotation test, they are prevented from colliding with the inner surface of the cover and scattering near the equipment. Ru.

According to the structure of the invention of claim (2), furthermore, when the cover is open, the drive motor does not operate due to the detection output of the closure detection sensor, thereby preventing the drive motor from operating due to an erroneous operation when opening the cover. be done.

According to the structure of the invention of claim (3), if bolts or the like fly off during a rotation test and collide with the inner surface of the cover, the drive motor is automatically stopped by the output of the collision detection sensor.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings. FIG. 1 is an overall plan view of a rotation testing device for a wheel unit for a track vehicle according to an embodiment of the present invention;
Fig. 2 is an overall front view, Fig. 3 is a side view of the main part of the set part of the wheel unit of the rotation test device, and Fig. 4 is a partially cutaway plan view showing the connection configuration of the rotation test device and the wheel unit. FIG. 5 is a cross-sectional view showing the configuration of the coupling mechanism section of the rotation testing apparatus, and FIG. 6 is a cross-sectional view taken in a direction perpendicular to FIG. 5.

In these figures, reference numeral A denotes a rotation test device, and the rotation test device A tests a wheel unit B consisting of a pair of left and right wheels 1 that are axially connected, a pair of left and right bearing boxes 2, a gear drive device 3, etc. It has a pair of carrying-in rails 4 and carrying-out rails 5 that roll and guide the left and right wheels 1, and vertically swingable movable rails 6a and 6b are provided between these. .

The movable rails 6a and 6b are pivoted about respective fulcrums 7 so as to be able to bend and swing freely, and their respective free ends are received and supported by contact pins 9 that are raised and lowered by hydraulic cylinders 8. The loading/unloading rails 4 and 5 can be switched between a horizontally connecting position and a center-folding position.

A pedestal 10 for supporting the bearing box 2 of the wheel unit B is provided at the lateral outer side of each movable rail 6a, 6b, and the left and right bearings of the wheel unit B are lowered as the movable rail 6a, 6b is bent. The box 2 is received and fixed on a pedestal 10 via a jig 11.

A prime mover device 12 is provided at a portion of the wheel unit B supported on the pedestal 10 that faces the input portion of the gear drive device 3 .

This driving device 12 is configured to transmit the rotational output of a drive motor 13 to an output section 15 via a gear device 14, and the position of this output section 15 can be adjusted back and forth with a handle 16. It can be adjusted up and down using a handle 17.

The output section 15 has an output shaft 1 that can be freely adjusted in and out of the left and right directions.
8, and a connecting flange 20 is attached to its tip via a flexible rotary joint 19.

On the other hand, the gear drive device 3 in wheel unit B
A connecting flange 23 is attached to the input shaft 21 of the input shaft 21 via a flexible rotary joint 22, and the connecting flanges 20 and 23 are connected with bolts to interlock and connect the output shaft 18 and the input shaft 21. The output section 15 is adjusted longitudinally and vertically to align the connection.

Output shaft 18 and input shaft 2 configured as above
The connection part 24 with 1 is a tunnel-shaped safety cover 2
5 is provided. This safety cover 25 is a flat bottom cover 2 that completely covers the lower side of the connection part 24.
6, a tunnel-shaped upper fixed cover 27, and a tunnel-shaped upper movable cover 28.

The bottom cover 26 is configured to have an L-shape when viewed from the front, and a vertical wall portion 26 a continuous to the base end thereof is connected to a flange 29 provided on the output portion 15 .

The fixed cover 27 is connected and supported by the proximal vertical wall portion 26a of the bottom cover 26, and covers the front half of the connecting portion 24.

The upper movable cover 28 can be overlapped with the outer side of the upper fixed cover 27, and the guide bar 30 attached to the front and rear lower edges thereof is engaged in the guide groove 32 of the guide rail 31 attached to both the front and rear edges of the bottom cover 26. It is supported so that it can slide left and right.

Further, the guide rail 31 is provided with a guide ball 33 exposed at the bottom of the guide groove 32, and the lower surface of the guide bar 30 is placed and supported on this guide ball.

Further, stoppers 34 of the upper movable cover 28 are provided at three locations in the longitudinal direction of the guide rail 31. As shown in FIGS. 7 and 8, this stopper 34 has a slidable lock pin 36 fitted inside and supported by a boss 35 screwed and fixed to the guide rail 31, and this lock pin 36 is formed on the guide bar 30. By engaging the lock hole 37, the upper movable cover 28 is fixed. The lock pin 36 is biased in the locking direction by an internal spring 38, and a knob 39 is provided at the outer end of the lock pin 36.
By pulling the knob outward against the spring 38 and rotating it 90 degrees, the protruding piece 39a provided at the tip of the knob 39 can be held in a state where it is pulled out from the notch 35a of the boss 35. ing. In addition, 3
Of the stoppers 34, the two on the tip side are used when fixing the upper movable cover 28 in the closed position,
The rear one is used to fix the upper movable cover 28 in the open position.

By providing the movable cover 28 as described above, when the movable cover 28 is fixed by one stopper 34 at the rear and is opened, the wheel unit B set at a predetermined position of the rotation testing apparatus A can be connected. The connecting flange 23 and the connecting flange 20 of the rotation testing device are connected. After the connection, the fixation by one stopper 34 at the rear is released and the movable cover 28 is slid out to cover the connection part 24, and in this state, the movable cover 28 is fixed by the two stoppers 34 on the tip side. , the drive motor 13 starts operating.

A limit switch 40 is provided at the top of the output section 15 as a closure detection sensor for detecting the closed state of the upper movable cover 28 .
A contact piece 41 for pressing 0 is attached in a cantilevered manner, and is set so that the pressure on the limit switch 40 is released only when the upper movable cover 28 is in a closed position completely covering the connection part 24. This limit switch 40 is connected to the drive circuit of the motor 13, and the motor 13 is driven only when the pressure by the contact piece 41 is released, that is, when the cover is closed, and when the movable cover 28 is opened, the motor 13 is driven. Even when the drive motor 13 is operated, the drive motor 13 is not driven, thereby ensuring safety.

In addition, a collision detection sensor 42 connected to the motor drive circuit is attached to the upper movable cover 28, and during the rotation test, damage occurs at the connecting portion 24, and bolts and nuts are scattered, causing the upper movable cover 28 to be damaged.
8, the drive circuit is turned off by a detection signal from the collision detection sensor 42, and the motor 13 is automatically stopped. By automatically stopping the drive motor 13 in this manner, the rotation test is not continued unnecessarily, and further damage is prevented from expanding.

(Effects of the invention) As explained above, the rotation testing device according to the invention covers the connecting part between the output shaft of the prime mover and the input shaft of the gear drive with a cover that can be slid open and closed, and prevents the connecting part from occurring in the unlikely event of an accident. By preventing bolts and nuts from flying off due to damage, rotation tests can now be carried out safely with a much simpler and cheaper structure than in the past, which used a test chamber.

In addition, since a separate testing room is not used, work can be done in an open work space.As a result, as shown in the example, it is easy to carry in and out using rails, and many test objects can be carried out one after another. Now it can be processed more efficiently.

Further, the cover is sturdy and heavy to ensure durability against collisions with bolts and nuts, but since it is of a sliding type, it can be easily operated and is easy to handle.

Furthermore, since the configuration includes a closure detection sensor that detects the closure of the cover, the drive motor of the prime mover does not operate unless the cover is closed, so that the drive motor may be accidentally activated when the cover is opened. is never activated, making it even safer.

Furthermore, since the cover is equipped with a collision detection sensor, the drive motor will automatically stop if the connection part is damaged during a rotation test and bolts fly off and collide with the cover. The rotation test is not continued unnecessarily, and
Expansion of damage is avoided.

[Brief explanation of drawings]

1 to 8 relate to embodiments of the present invention,
Fig. 1 is an overall plan view of a vehicle wheel rotation test device according to the present invention, Fig. 2 is an overall front view thereof, and Fig. 3 is a side view of a main part of a set portion of a wheel unit of the rotation test device. FIG. 4 is a partially cutaway plan view showing the connection structure between the rotation test device and the wheel unit, and FIG. 5 is a sectional view showing the structure of the connection mechanism of the rotation test device.
FIG. 6 is a cross-sectional view in a direction perpendicular to FIG. 5;
Figure 7 is a vertical sectional view of the stopper part, Figure 8
The figure is a horizontal sectional view of the same. A...Rotation test device, B...Wheel unit, 1
... Wheels, 3 ... Gear drive device, 13 ... Drive motor, 18 ... Output shaft, 21 ... Input shaft, 28 ...
...Movable cover (cover), 40...Limit switch (closure detection sensor), 42...Collision detection sensor.

Claims (1)

[Claims for Utility Model Registration] (1) A vehicle comprising a drive motor and an output shaft driven by the drive motor, the output shaft being interlocked with the input shaft of a gear drive device that pivotally supports the wheels of a wheel unit for a rail vehicle. In the rotation test device for a rail vehicle wheel unit configured to connect the wheels and rotate the wheels, the connection portion between the output shaft and the input shaft is covered by a cover that can be slid open and closed in the connection direction. A rotation test device for a wheel unit for a track vehicle consisting of: (2) A closure detection sensor for detecting whether or not the cover is in the closed set state is provided at a corresponding position on the cover, and the drive motor is activated only when the sensor detects that the cover is in the closed set state. 2. The rotation testing device for a wheel unit for a track vehicle according to claim 1, wherein the device is configured to be operable. (3) The cover is provided with a collision detection sensor that detects a collision when an object collides with the cover from inside, and the drive motor is configured to be stopped when the sensor detects a collision. A rotation testing device for a wheel unit for a track vehicle according to claim (1).