KR200204521Y1 - Araming system to overheating bearing of train - Google Patents

Abstract

The present invention is equipped with a recognition means for converting the heat source generated by frictional heat of the bearing into mechanical energy on the outside of the housing accommodating the bearing and the axle indicating the wheel and axle of the train by recognizing the conversion state of the recognition means from the outside of the enclosure. The overheating warning device for a wheel bearing of a train for the purpose of recognizing the overheating state of a bearing, without releasing the enclosure from the outside of the housing accommodating the bearing, the present invention for realizing the above object is an openable front The bearing is mounted in the journal housing having a lid, and has a bearing supporting the wheels and the axle, which is tightly bolted to the front cover and coupled to a heat collecting space and a hinge for collecting frictional heat of the bearing discharged to the front cover. Opening the collecting cover with a recognition member and the recognition member provided on the collecting cover to the collecting cover Locking means for fixing so as to be possible, the shape restoring member mounted in the heat collecting cover and restored when the temperature collected in the heat collecting cover is above the set shape memory temperature, and the restoring force by transmitting the restoring force to the recognition member in a fixed state of the shape restoring member. By releasing the binding force of the recognition member is opened from the heat collecting cover, characterized in that the supporting means for recognizing whether the bearing overheating from the outside of the front cover.

Description

Wheel bearing overheat warning device of train {ARAMING SYSTEM TO OVERHEATING BEARING OF TRAIN}

The present invention relates to an overheat warning device for a wheel bearing of a train that allows an operator to recognize an overheating state of a bearing supporting a wheel and an axle of the train from the outside of the housing accommodating the bearing. In particular, the overheating of the bearing is used as a heat source for mechanical energy. It is related to the overheat warning device for the wheel bearings of a train to recognize the overheating of the bearings without releasing the enclosures by converting them into the outside of the housing accommodating the bearings.

In general, the train is connected to the wheel (30) to be supported by the bearing 60 through the axle 20 to the vehicle body (5) having a transport space and operation room for the purpose as shown in Figures 1 and 2, the electric and Power generated by an engine that converts thermal energy into mechanical energy is transmitted to the wheels 30 through the axles 20, so that the wheels 30 are rotated on the rails to achieve high speed travel.

In addition, the bearing 60 is mounted in the journal housing 40 with the front cover 10 on the journals on both sides of the axle 20 and filled with lubricating oil, so that the axle ( Efficient power transfer is achieved by performing gamma, cooling, buffering, rustproofing, and cleaning for the rotating friction generated between the wheel 20 and the wheel 30.

However, the lubricating oil supplied to the bearing 60 loses its efficient heat resistance to achieve its purpose when it achieves a continuous lubricating action in the temperature range of 70 ~ 140 ℃ generated during the high-speed train running.

Therefore, when the proper replacement of the lubricating oil is not made, the bearing 60 is burned out by the frictional heat, and thus there is a problem in that a cost loss occurs due to the replacement of the entire bearing 60 and power loss occurs.

Therefore, such a problem is possible by performing proper heat dissipation work and proper replacement work of the lubricating oil according to the stop of the train, etc., including the bearing 60, but conventionally, in order to grasp this, the worker accommodates the bearing 60, That is, after opening the front cover 10 of the journal housing 40, respectively, it was determined that there was a difficulty in the process of releasing or reassembling it.

The present invention has been made to solve the above problems, the object of the present invention is to recognize that the heat source generated by the frictional heat of the bearings to the mechanical energy on the outside of the housing housing the bearings supporting the wheels and axles of the train is converted into mechanical energy By providing a means for recognizing the conversion state of the recognition means from the outside of the enclosure, to provide a wheel bearing overheat warning device of the train to recognize the overheating state of the bearing without removing the enclosure from the outside of the housing containing the bearing. .

The present invention for realizing the above object has a recognition means for collecting the frictional heat of the bearing on the outside of the housing accommodating the bearing, it is operated when the collecting temperature is a set temperature to determine the overheating state of the bearing according to its operation. Can be achieved as:

The recognizing means is mounted in a journal housing with an openable front cover, and has a bearing supporting the wheels and the axle. The collecting space collects frictional heat of the bearing which is tightly bolted to the front cover and discharged to the front cover. And a heat collecting cover having a recognition member coupled to the hinge to open and close, a locking means for fixing the recognition member provided on the heat collecting cover to the heat collecting cover so as to be openable and closed, and the temperature collected in the heat collecting cover is set. The shape restoring member which is restored when the shape memory temperature is higher than that, and the restoring force is released by transmitting the restoring force to the recognition member while the shape restoring member is fixed, and the recognition member is opened from the heat collecting cover to indicate whether the bearing is overheated or not. The support means to be recognized by the characteristic configuration.

The technical idea of the present invention by the above characteristic configuration is that the bearing member is fixed by the restoring force of the shape restoring member which is converted into mechanical energy by using the frictional heat of the bearing as a heat source to prevent the flow in the closed state. It is a technical idea that the overheating state of the battery can be judged at an appropriate time without opening the front cover.

1 is a front view showing the external configuration of a wheel of a train according to the prior art;

Fig. 2 is a sectional plan view of the main part of Fig. 1 showing the axle configuration of a train according to the prior art;

Figure 3 is a front view showing the external configuration of the wheel of the train according to the present invention,

Figure 4 is a front view showing the configuration of the heat collecting cover according to the present invention,

5 and 6 are A-A line diagram of Figure 3 showing the configuration and operating state of the wheel bearing overheat warning device of the train according to the present invention,

Figure 5 is a view before operation, Figure 6 is a view after operation.

7 to 10 is a cross-sectional view showing the configuration and operation of the other embodiments of the present invention,

7 and 9 are views before operation;

8 and 10 are views after operation.

Explanation of symbols on the main parts of the drawings

10: front cover 20: axle 30: wheel

50: heat collecting cover 52: fixing protrusion 60: bearing

80: hinge 90: recognition member 100,160: shape restoring member

200: guide 300: pusher 302: outward end

Hereinafter, with reference to Figures 3 to 10 attached to an embodiment of the present invention in detail as follows.

In the drawing, the body 5, the axle 20 and the wheel 30, the bearing 60 mounted to support the axle 20 and the wheel 30 in both journals of the axle 20, and the bearing 60 A conventional configuration of the journal housing 40 for receiving the bearing 60 and having the openable front cover 10 coupled to the bolt 8 to prevent leakage of the lubricating oil supplied thereto, and receiving the bearing 60 The frictional heat of the bearing 60 is mounted on the outside of the front cover 10 to dissipate heat from the front cover 10, and is operated when the heat collection temperature is a set temperature, thereby overheating the bearing 60 according to its operation. It provides a configuration of the recognition means to determine the.

Recognizing means is a heat collecting space 55 and the hinge 80 to collect the heat of friction of the bearing 60 discharged to the front cover 10 by being tightly fastened to the front cover 10 by the bolt 8 in the embodiments And a collecting means (50) having a recognition member (90) which is coupled and opened and closed, locking means for fixing the recognition member (90) provided on the collection cover (50) to be opened and closed to the collection cover (50); The shape restoring member 100 and the restoring force in a state where the shape restoring member 100 is fixed while being mounted in the heat collecting cover 50 and restored when the collected temperature in the heat collecting cover 50 is equal to or greater than the set shape memory temperature. By releasing the restraining force of the locking means by transmitting to the) the recognition member 90 is opened from the heat collecting cover 50 is configured as a support means to recognize whether the bearing 60 is overheated from the outside of the front cover (10).

The collecting cover 50 of the recognizing means has a convex shape in which one side is open and bolted to be integrally coupled in the process of coupling the front cover 10 to the journal housing 40 with the bolt 8 as shown in FIG. 4. Outward protrusions 53 formed with 54 are provided. Therefore, when the heat collecting cover 50 and the front cover 10 are integrally coupled to the journal housing 40 with bolts 8, the heat collecting cover 50 is sealed with the outside of the front cover 10 being a wall. It forms a space 55.

The support means is configured to support the recognition member 90 in a state in which the shape restoring member 100 which is restored above the shape memory temperature thermally conducting frictional heat of the bearing 60 as a heat source is prevented from being separated.

The support means according to the embodiment extends the rear surface of the recognition member 90 as shown in FIGS. 5 and 6 and is adjacent to the support surface 92 supported by the shape restoring member 100 and the support surface 92. The fixing projections 52 are formed on the inner bottom surface of the heat collecting cover 50, and the shape restoring member 100 is restored to the inserted state in the fixing projections 52 to support the support surface 92.

In Figures 7 and 8 according to another embodiment the support means is attached to the rear surface of the heat collecting cover 50 so that one side of the opening facing the back of the recognition member 90 to receive the shape restoring member 100 ( 200) and the push rod 300 is inserted into the inside of the guide tube 200 and formed with a push rod 300 having an outward end 302 in the outer diameter, so that the shape restoring member 100 is inserted into the guide tube 200. And restored to support the outward end 302 of the push rod 300.

The guide tube 200 forms an outward flange 204 and is fastened by a screw 206 to the geothermal cover, and the outward end 302 diameter is relatively large with respect to the width of the recognition member 90, thereby restoring the shape. When the member 140 is restored, it is prevented from being separated out of the guide tube 200.

In addition, the through-hole 202 is formed in the rear of the guide tube 200, so that the frictional heat of the bearing 60 is easily transferred to the shape restoring member 100, but the through-hole 202 and the number is limited thereto. Embodiment is possible by being formed in the guide tube 200 without this.

On the other hand, in the above embodiment, the recognition means has a coil spring-shaped shape restoring member 100 and support means for supporting the restoring force of the shape restoring member 100, but is not limited thereto.

That is, as shown in FIGS. 9 and 10, the attachment surface fastened by the screw 206 to the rear surface of the front cover 10 including the heat collecting cover 50, the recognition member 90, and the locking means according to the embodiment ( 162, and integrally extended with the attachment surface 162, restoring force for forwardly supporting the rear surface of the recognition member 90 at a constant pressure above the shape memory temperature thermally conducted to the frictional heat of the bearing 60 as a heat source. It is possible to implement even if composed of a plate-shaped restoring member 160 consisting of a support portion 164 having a.

The plate-shaped restoring member 160 is the heat-deformed state in the shape of the attachment surface 162 to the fixed portion above the shape memory temperature, the restoring force at the shape memory temperature to the support portion 164, that is, the recognition member 90 As it is curvature forward, the contact surface of the closed recognition member 90 is kept below or close to the shape memory temperature.

In addition, in the above-described embodiment, the locking means forms a matching protrusion 96 on the upper side of the recognition member 90 and the recognition member 90 of the contact surface of the front cover 10 opposite thereto, and is formed on the front cover 10. Forming grooves 56 to be formed on the protrusions 96 are formed, and the matching protrusions 96 are formed on the elastic portion 94 having an upper and lower elastic force by extending the upper end of the recognition member 90, but is not limited thereto. And freely opening and closing freely locking means.

In the above-described embodiment, the formation restoring members 100 and 160 include a known material that causes thermal deformation at a set temperature such as shape memory alloy and bimetal. For example, in the case of shape memory alloy, the crystal structure at low temperature such as nickel-titanium alloy is different from the crystal structure at high temperature, and thus it loses its strength under a certain temperature and is easy to bend. It includes all known shape memory alloys that can change form into a state, ie cause twin deformation with restoring forces of tension, compression, and torsion.

In addition, in the above-described embodiment, the shape memory temperature at which the shape restoring members 100 and 160 are restored is set to be within a range of 70 to 140 ° C., which is an overheating temperature of the bearing 60, which is a heat collecting cover 50. It is preferable to set the shape memory temperature zone according to the heat transfer rate of the volume and the restoration member 100, 160 formed in the heat collecting space 55 of the.

For example, the shape restoring member 100, 160, which is heat-transferred to the frictional heat of the bearing 60, maintains 50 deg. C within the range of overheating temperature, and opens the recognition member 90 in time. It is possible by setting the shape memory temperature of the restoring members 100 and 160 to 50 ° C. Of course, it is possible to determine the restoration time of the shape restoring member 100, 160 by lowering or raising the temperature range of the shape memory temperature, but any temperature range in the range of 70 to 140 ° C., which is an overheating temperature of the bearing 60, is possible. It is preferable to select and decide.

In addition, the restoration range of the shape restoring member 100, 160, that is, the strain is sufficient by supporting the recognition member 90 to release the locking means.

In the above-described embodiment, it is desirable to secure a watch for easily securing the opening state of the recognition member 90 even at night by applying or attaching a light emitting material (not shown) to the rear surface of the recognition member 90. .

In addition, the structure of the support means of this embodiment and this recognition member 90 is not limited to this. That is, it is also possible to have a structure that can be supported by the restoring force of the shape restoring members 100 and 160 to wander from the heat collecting cover 50.

The technical idea of the present invention by such a configuration is that the shape restoring member (100) (160) is a mechanical source of heat of friction of the bearing (60) is fixed to the recognition member (90) fixed to prevent the flow in the closed state by the locking means By converting the energy, that is, restored to its original shape by opening the recognition member 90, the overheated state of the bearing 60 can be determined at an appropriate time without opening the front cover 10.

Referring to the operation of the present invention by the above configuration as follows.

First, the shape restoring member 100, 160 according to the present invention in FIGS. 5, 7, and 9 has lost its power, that is, the shape restoring member 100 (which maintains a low temperature zone inside the journal housing 40) ( 160) is less than the shape memory temperature.

At this time, the recognition member 90 is supported by the elastic portion 94, which is a locking means to close the heat collecting cover 10 in a state in which the mating protrusion 96 and the mating groove 56 are prevented from flowing.

If the temperature inside the journal housing 40 is overheated by frictional heat of the bearing 60 supporting the wheels 30 and the axle 20 after the train is running for a long time in the above state or after driving, the heat source is partially covered by the front cover. The heat dissipation through the 10 is collected in the heat collecting space 55 of the heat collecting cover 50.

In FIG. 6, as the heat-conducting shape restoring member 100 is restored, the recognition member 90 is pushed to the front of the heat collecting cover 50 by the support surface 92, thereby releasing the locking means and the recognition member 90. The opening is centered around the hinge 80 by its own weight.

In Figure 8, as the shape restoring member 100 is restored, the pusher 300 pushes the recognition member 90 toward the front of the front cover 10 through the outward end 302, so that the locking means is released and the recognition member 90 ) Is opened about the hinge 80 by its own weight.

In FIG. 10, as the lower side of the shape restoring member 160, that is, the support 164 is restored, the lower end of the shape restoring member 160 pushes the recognition member 90 toward the front of the heat collecting cover 50, thereby releasing the locking means and the recognition member 90. ) Is opened about the hinge 80 by its own weight.

Accordingly, the operator can easily overheat the lubricating oil including the bearing 60 by the light emitting material provided in the protruding state of the recognition member 90 or the light emitting material provided on the rear surface of the recognition member 90 without opening the front cover 10. The judges will then make timely action.

The present invention eliminates the overheating state of the bearing and the sensor equipped with a circuit element vulnerable to the heat source, converts the frictional heat of the bearing into mechanical energy as a heat source, and makes it easy to recognize whether its operation is performed. By taking action, it is a useful design that can improve the work rate as well as prevent parts burnout and power loss by replacing lubricating oil and dissipating bearings at the appropriate time.

Claims (2)

In a journal housing having an openable front cover and having a bearing supporting the wheels and the axle, Recognition member coupled to the front cover 10 by a bolt (8) tightly coupled to the heat collecting space 55 and the hinge (80) for collecting the frictional heat of the bearing 60 discharged to the front cover 10 A heat collecting cover 5 having a 90, locking means for fixing the collecting member 90 provided on the heat collecting cover 50 to the heat collecting cover 50 so as to be openable and closed, and mounted in the heat collecting cover 50; And the restoring force of the locking means by transmitting the restoring force to the recognition member while the shape restoring member 100 and the shape restoring member 100 are fixed when the collected temperature in the heat collecting cover 50 is greater than or equal to the set shape memory temperature. By the recognition member 90 is opened from the heat collecting cover 50, the wheel bearing overheat warning device of the train, characterized in that configured as a support means for recognizing the overheating of the bearing (6) from the outside of the front cover (10). In a journal housing having an openable front cover and having a bearing supporting the wheels and the axle, Recognition member coupled to the front cover 10 by a bolt (8) tightly coupled to the heat collecting space 55 and the hinge (80) for collecting the frictional heat of the bearing 60 discharged to the front cover 10 A heat collecting cover 50 having a 90 and a locking means for fixing the recognition member 90 provided on the heat collecting cover 50 to the heat collecting cover 50 so as to be openable and closed on the rear surface of the heat collecting cover 950. A support portion having an attachment surface 162 attached thereto and extending integrally with the attachment surface 162 to be restored when the collected temperature in the heat collecting cover 50 is higher than or equal to a set shape memory temperature, thereby opening the recognition member 90. 164, the wheel bearing overheat warning device of the train, characterized in that consisting of the shape restoring member (160).