JPH10181600A - Tread lubricating device for rolling stock wheel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To operate a tread lubricating device only in a steep curve area in need of application of a lubricant by actuating a drive source upon detecting entry into a curve to press a solid lubricant to the tread, and pullihg the lubricant back upon detecting detachment from the curve. SOLUTION: When, a vehicle comes to a curve, a pin 13 rotated around the center of a truck according to a bogie angle. In response to this movement, a sliding plate 12 slides toward the center of the truck. A lever 15 is rotated counterclockwise by this movement but rotated as shown by a two-dot chain line so as to compress a spring 8 and a spring 5. A solid lubricant 9 is therefore pushed out and pressed to the tread of a wheel 10 to apply the lubricant. Upon reaching an outlet of a steep curve, the lever 15 is set back into the original state in association with the decrease of the bogie angle, and an arbor 3 is pulled back by the force of the return coil spring 5, so that the solid lubricant 9 retreats from the tread of the wheel 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a railroad vehicle wheel tread lubrication device for applying a lubricant directly to a wheel tread when a vehicle passes a curved section.

[0002]

2. Description of the Related Art When a railway vehicle passes through a curve, particularly when passing through a sharp curve section having a small curve radius, a very large slip occurs in the vertical and horizontal directions between the wheel and the rail. As a result, creaking noise, vibration and noise are generated, and corrugated wear, direct wear of wheel flanges, and lateral pressure increase, leading to deterioration of ride comfort and increase in vehicle repair, and a decrease in running safety. Was.

[0003] In order to solve the problem in such a sharply curved section, a method of providing an oiling device on the rail side and applying oil to the side surface of the head of the rail has been conventionally used. In Canada, a system is used in which solid lubricant is constantly pressed against the wheel tread.

The method of constantly pressing the solid lubricant has a simple mechanism. However, the use of the solid lubricant in a straight section or a curved section having a large curve radius where no problem such as squeaking noise occurs is wasteful. As the consumption of solid lubricant is severe,
Vehicle maintenance increases.

[0005]

As described above, the method in which the solid lubricant is constantly applied to the tread of the wheel is more effective than the method in which an oiling device is provided on the rail side to apply oil to the rail. It has the above problems.

SUMMARY OF THE INVENTION The present invention is to solve the problem of the method of always applying the solid lubricant to the tread of the wheel, and to provide a tread lubricating device for a railway vehicle wheel which operates only in a sharp curve section where the lubricant needs to be applied. Is provided.

[0007]

In order to achieve the above-mentioned object, a tread lubricating device for a wheel of a railway vehicle according to the present invention allows a solid lubricant held on a support to move forward and backward by a mechanical or electric drive source. The lubricant supply device is attached to the bogie frame so as to face the wheel treads, detects the approach of the curve, activates the drive source and presses the solid lubricant against the tread, and detects the departure of the curve and pulls the solid lubricant. It is configured to return.

The tread lubrication device is characterized in that only the lubricant supply device for the rear axle of the bogie is driven in the traveling direction of the vehicle.

The drive source includes a mechanical mechanism including a lever and a spring that operate when a bogie angle exceeds a certain limit value (set value), and an air / hydraulic mechanism performed by a cylinder by opening and closing a solenoid valve by a relay. And an electrical mechanism that excites a solenoid by the operation of a relay.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The wheel tread lubrication device of the present invention
The solid lubricant held by the support is made movable by a mechanical or electric drive source and a lubricant supply device is attached to the bogie frame opposite to the wheel tread surface, and the drive source is activated upon detecting a curved approach. Then, the solid lubricant is pressed and applied to the tread surface, and the means for detecting the entry of the curve is not particularly limited, and a known detection method can be used.

For example, as shown in FIG. 1, when a vehicle travels in a curved section, a rotation angle α occurs between the vehicle body and the bogie. Since the rotation angle α is inversely proportional to the curve radius R, by measuring the rotation angle α, the curve radius R can be obtained from the equation of R = L / sin α. Thereby, a curve can be detected.

In addition, a method of inputting a signal from a ground member provided on the approach side and the exit side of the curve to a control device on the vehicle and calculating and detecting the curve, or a method in which curve information of a traveling route is previously transmitted to the control device. There is a method of detecting a curve by inputting and comparing it with the actually measured traveling distance, and a method of detecting a curve by receiving a radio wave from a space satellite and measuring the current position of the vehicle.

As described above, when the vehicle enters a sharp curve by various detection methods, the drive source is operated mechanically or electrically based on the detection to extrude the solid lubricant in the holder. Then, apply lubricant by pressing against the tread of the wheel.

According to the present invention, since the lubricant is applied to the wheel tread only in the sharp curve section where squeak noise and the like occur,
The consumption of the lubricant is reduced, the replacement cycle due to the consumption of the solid lubricant is extended, and the maintenance cost can be reduced.

[0015]

【Example】

Embodiment 1 An embodiment of the present invention will be described with reference to FIG. Holder 1
Is provided with a perforated partition plate 2 in a bottomed cylinder, through which a mandrel 3 is passed, a return coil spring 5 is provided between the inner end spring seat plate 4 and the partition plate 2, and an outer end support plate 6 is provided. A solid lubricant 9 is attached to the rim. Then, insert the spring seat plate 7 bound by one end to the pin 16 of the bent lever 15 ₂ which is pivotally supported on the pin shaft 15 ₁ which is embedded in the truck frame 11 in the cylinder bottom side, between the spring seat plate 4 A coil spring 8 is provided.

[0016] The end of the bent lever 15 _2, truck frame 11
Are connected to each other by connecting pins 14 implanted on a slide plate 12 provided on both ends of the carriage so as to be slidable in the width direction of the carriage. A guide slot 17 is provided in the slide plate 12 in the longitudinal direction of the bogie (the traveling direction of the vehicle).
A pin 13 projecting downward from the vehicle body is inserted through the body. The pin 13 is located at the center of the guide slot 17 when the vehicle is traveling on a straight line.

When the vehicle approaches the curve, the pin 13 rotates around the bogie center according to the bogie angle. The slide plate 12 slides toward the center of the cart in response to the movement. Lever 15 ₂ by the movement of the slide plate 12 is rotated counterclockwise in the figure, the pin 13 when the bogie angle reaches the predetermined value α is in the position 13a or 13b of both ends of the guide slots 17 , Lever 1
5 ₂ rotates as shown by the two-dot chain line, pressed against the tread surface of the wheel 10 extruded solid lubricant 9 to compress the spring 8 and the spring 5, the lubricant coating is carried out. Then, when reaching the exit of the sharp curve, the pin 13 is moved to the guide slot 1 as the bogie angle decreases.
7 moves toward the center of which the lever 15 _second force is applied in the spring returns to its original state, the mandrel 3 is pulled back by the spring force of the coil spring 5 back simultaneously, the solid lubricant 9 wheels 10 Retreat from the tread of.

Embodiment 2 FIG. 4A shows an embodiment in which pneumatic or hydraulic pressure is used as a drive source.
Description will be made based on (B). The holder 1 is provided with a perforated partition plate 2 in a bottomed cylinder body, passes a mandrel 3 through it, and returns the coil spring 5 between the inner end spring seat plate 4 and the partition plate 2.
, And the solid lubricant 9 is attached to the support plate 6 at the outer end. Then, a cylinder 19 is formed in which a space between the cylinder bottom and the spring seat plate 4 is an air pressure chamber or a hydraulic chamber. The cylinder 19 is driven by the electromagnetic valve 20 via an electromagnetic solenoid 20a of an electromagnetic valve operated via a relay 21 by a switch 22 or 23 which is turned on when the bogie angle of the bogie reaches a predetermined value. Reference numeral 24 denotes a reservoir for compressed air or compressed oil.

FIGS. 3A, 3B and 3C show an example of the switches 22 and 23 which are activated by the bogie angle of the bogie.
A support plate 27 provided with a curved guide slot 28 through which a pin 29 provided on the vehicle body side is inserted and which guides the pin 29 which moves due to a change in a bogie angle when the vehicle passes through a curve, is moved to the bogie frame 11.
A switch 22 projecting laterally outwardly from the side beam of the switch 22 and actuated by contact of the pin 29 with both ends of the curved guide slot 28;
23 is installed.

When the vehicle approaches the curve, the pin 29 moves right and left from the center position according to the bogie angle. And
When the bogie angle reaches the set value α, the pin becomes 29a or 29b.
Or the switch 22 or 23 is turned on. Then, the relay 21 is excited, the solenoid valve 20 is operated, the cylinder 19 and the main reservoir 24 are connected, compressed air or pressure oil is sent to the cylinder 19, and the solid lubricant is pushed out by pressing the spring seat plate 4. The lubricant is applied to the tread of the wheel 10. When the bogie angle is reduced, the pin 29 moves toward the center of the curved guide slot 28, the switch 22 or 23 is turned off, the solenoid valve 20 is switched, and the compressed air in the cylinder 19 is discharged. In the case of pressurized oil, the pressure is returned to the reservoir 24 to reduce the pressure, and the pressure is returned to the return coil spring 5 so that the solid lubricant 9 retreats from the tread surface of the wheel 10.

Embodiment 3 FIG. 5A shows an embodiment using an electromagnetic solenoid as a drive source.
Description will be made based on (B). The holder 18 is provided with a perforated partition plate 2 in a bottomed cylinder, through which a mandrel 3 passes, a return coil spring 5 between the inner end spring seat plate 4 and the partition plate 2, and an outer end The solid lubricant 9 is attached to the support plate 6.
An electromagnetic solenoid 25 is provided between the cylinder bottom and the spring seat plate 4.
Is provided. The driving of the electromagnetic solenoid 25 is turned on when the bogie angle of the bogie reaches a predetermined value.
Is performed through the relay 21 by the switch 22 or 23 shown in FIG.

In this embodiment, as in the case of the third embodiment, the vehicle is approaching a sharp curve and the switch 22 or 2
When the switch 3 is turned on, the electromagnetic solenoid 25 operates to press the spring seat plate 4 to push out the solid lubricant, thereby applying the lubricant to the tread surface of the wheel 10. Also, switch 22 or 2
When 3 returns to the OFF state, the return coil spring 5
Then, the solid lubricant 9 retreats from the tread of the wheel 10.

Embodiment 4 FIGS. 6A and 6B show an embodiment in which only the solid lubricant supply device for the rear wheel axle of the bogie is driven by pressurized air or oil in the traveling direction of the vehicle. It will be described based on. Solid lubrication for the tread surface of each wheel 10 of the front and rear axles of one bogie using the same configuration as the solid lubricant application device described in Embodiment 2 and shown in FIGS. One pair of left and right solid lubricant coating devices 31a is connected to a pipe having an electromagnetic valve 30a, and the other pair of left and right solid lubricant coating devices 3a and 31b is provided.
1b is connected to a pipe having the solenoid valve 30b.

The solenoids 40a, 40b of the solenoid valves 30a, 30b are connected to relays 32a, 3
2b, each circuit is connected between a forward and reverse switch 34a, 34b manually operated in the driver's seat between the relay and the switch,
And forward / reverse switch 34a, 34b and switch 2
Both circuits are connected between 2 and 23.

In the figure, in the case of the forward rotation operation indicated by the arrow a, the forward / reverse switch 34a is turned ON by the driver's manual operation. Then, the forward / reverse switch 34b is in the OFF state, and the relay 32b does not operate. Therefore, in this state, only the solid lubricant applying device 31a of the rear wheel shaft is driven. That is, the vehicle approaches a sharp curve, and the switch 22 or 23 is turned on.
, The forward / reverse switch 34a, the relay 32
a, the switch 33a, and the electromagnetic valve 30a operate via the electromagnetic solenoid 40a, and the solid lubricant applying device 31a is driven.

On the contrary, when the driver turns the forward / reverse switch 34b to ON when the vehicle reverses in the direction indicated by the arrow b, the forward / reverse switch 34b and the relay The electromagnetic valve 30b operates via the switch 32b, the switch 33b, and the electromagnetic solenoid 40b, and the relay circuit is switched so that the solid lubricant applying device 31b is driven.

Embodiment 5 FIGS. 7A and 7B show an embodiment in which only the solid lubricant supply device for the rear axle of the bogie is driven by electric operation in the traveling direction of the vehicle. It will be described based on the following.
Example 3 was applied to the tread of each wheel 10 of the front and rear axles of one bogie.
5 (A) and 5 (B), the solid lubricant applying devices 36a and 36b, which are driven by an electromagnetic solenoid, are opposed to each other. The agent application device 36a is connected to the electromagnetic solenoids 37a and 37b by wires 35a and 35b, and the other pair of left and right solid lubricant application devices 36b is connected to the electromagnetic solenoids 38a and 38b by wires 39a and 39b. And
The electromagnetic solenoids 37a and 37b are connected to a circuit including switches 22 and 23 that open and close by a bogie angle, a manually operated forward / reverse switch 34a, and a switch 33a that is opened and closed by a relay 32a. Similarly, the electromagnetic solenoids 38a and 38b are switches 22 and 23 that open and close according to the bogie angle, and the forward / reverse switch 3 that is manually operated.
4b and a circuit including a switch 33b opened and closed by a relay 32b.

The operation in this case is the same as the operation of the solid lubricant applying device using the compressed air or the pressurized oil in the fourth embodiment, except that the switch 2 which is activated when the bogie angle reaches a predetermined value.
The solid lubricant application device on the forward (arrow a) direction by the operation of the electromagnetic solenoids 37a, 37b or 38a, 38b of the circuit to which the forward / reverse selector switch 34a or 34b that is manually operated is connected by 2 or 23. 36
solid lubricant application device 3 on a or reverse (direction of arrow b) side
6b is driven.

[0029]

According to the present invention, since the lubricant is applied to the wheel tread only in the sharp curve section where squeak noise and the like occur, the consumption of the lubricant is reduced, and the replacement cycle due to the consumption of the solid lubricant is reduced. Extension and reduction of maintenance costs.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a rotation angle α of a bogie with respect to a vehicle body in a curve.

FIG. 2 is an overall explanatory view of a mechanically driven embodiment of the present invention, in which only a solid lubricant coating device is sectioned.

FIG. 3 is an explanatory view showing a state in which a device provided with a pair of switches that operate when the bogie angle is a predetermined value α is mounted on a vehicle, (A) is a plan view of a bogie, (B) is a front view, (C) is an enlarged plan view showing details of a switch portion.

4 (A) is an overall explanatory view of the embodiment driven by compressed air or pressure oil according to the present invention, in which only a solid lubricant application device is sectioned, and FIG. 4 (B) is an electric facility for operating a solenoid 20; FIG.

5 (A) is an overall explanatory view of an embodiment driven by an electromagnetic solenoid according to the present invention, in which only a solid lubricant application unit is sectioned, and FIG. 5 (B) is an explanation of electric equipment for operating a solenoid 25. FIG.

6 (A) is an explanatory view showing an arrangement of a solid lubricant application device on a carriage, and FIG. 6 (B) is an electric equipment for operating solenoids 30a, 30b. FIG.

7 (A) is an explanatory view showing an arrangement of a solid lubricant applying device on a carriage, and FIG.
FIG. 4 is an explanatory view of electric equipment for operating the solenoids 37a, 37b, 38a, 38b.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1, 18 Holder 2 Partition plate 3 Mandrel 4, 7 Spring seat plate 5 Return coil spring 6 Support plate 8 Coil spring 9 Solid lubricant 10 Wheel 11 Truck frame 12 Slide plate 13, 29 pin 14, 16 Connection pin 15 ₁ pin Support shaft 15 ₂ Bending lever 17 Guide slot 19 Cylinder 20 Solenoid valve 20a Electromagnetic solenoid 21 Relay 22, 23 Switch 24 Main reservoir 25 Electromagnetic solenoid 27 Support plate 28 Curved guide slot 30a Solenoid valve (for normal rotation) 30b Solenoid valve (reverse rotation) 31a, 31b Solid lubricant coating device 32a, 32b Relay 33a, 33b Switch 34a, 34b Forward / reverse switch 35a 35b Wiring 36a, 36b Solid lubricant coating device 37a, 37b Electromagnetic solenoid 38a, 38b Electromagnetic solenoid 39a, 39b Wiring 40a, 40b electromagnetic solenoid Id

Continued on the front page (72) Inventor Yasuhiro Sato 6-38-1 Shinkawa, Mitaka City, Tokyo Inside the Traffic Safety and Pollution Research Institute, Ministry of Transport (72) Inventor Osamu Torii 5-1-1109 Shimaya, Konohana-ku, Osaka-shi, Osaka Sumitomo (72) Inventor Eiji Miyauchi 5-1-1109 Shimaya, Konohana-ku, Osaka-shi, Sumitomo Metal Technology Co., Ltd. (72) Inventor Masuhisa Tanimoto Konohana, Osaka-shi, Osaka 5-1-1109 Kushimaya Sumitomo Metal Technology Co., Ltd.

Claims (2)

[Claims] 1. A lubrication supply device capable of moving a solid lubricant held by a support tool back and forth by a mechanical or electric drive source is attached to a bogie frame in opposition to a wheel tread surface to detect a curve entry. Activating the drive source to press the solid lubricant against the tread,
A tread lubrication device for a railcar wheel configured to detect a departure from a curve and draw back the solid lubricant. 2. The tread lubrication device for a wheel of a railway vehicle according to claim 1, wherein only the lubricant supply device for the rear axle of the bogie is driven in the traveling direction of the vehicle.