KR100657621B1 - The hauling-link device for rallway vehicle - Google Patents

Abstract

A hauling-link device for a railway vehicle is provided to improve ride comfort of the railway vehicle by reducing shock and vibration transmitted from a bogie. In a hauling-link device for a railway vehicle, hinge fixing members(21) are installed on a bogie frame and a bottom of a body of the railway vehicle respectively. A connecting rod(25) of which both sides are hinge-connected to each hinge fixing member. A hinge member(27) rotates the connecting rod in the hinge fixing member. In the hinge member, a cylindrical housing(28) has a hollow hole shape. A rubber bushing(29) reduces force and vibration transmitted through the connecting rod when hauling/braking the railway vehicle. A cylindrical fixing bracket(33) is bolt-fixed on each hinge fixing member. In the rubber bushing, a semicircular hole is penetratingly formed through the rubber bushing at both inner sides of the rubber bushing. A protrusion for reducing the force transmitted through the connecting rod when hauling/braking the railway vehicle at the inner center of the hollow hole.

Description

Towing linkage for railway vehicles {The hauling-link device for rallway vehicle}

1 is a structural diagram schematically showing a conventional railway vehicle bogie.

Figure 2 is a schematic structural view showing a bogie for a railway vehicle to which the present invention is applied.

Figure 3 is a state coupled between the bogie and the vehicle body through the traction link device of the present invention.

Figure 4 is an enlarged perspective view of the traction link device applied to the present invention.

Figure 5 is a front cross-sectional view and side cross-sectional view of the hinge member of the traction link device of the present invention.

6 is an operational state diagram of the traction link device according to the present invention.

Explanation of symbols on the main parts of the drawings

10, 10a. Bogie 11. Axle Box

12. Wheel 13. Coil Spring

14. Balance frame 15. Air spring

17. Center pivot 20. Towing linkage

21. Hinge fixing member 22. Connecting rod insertion groove

23. Screw hole 25. Connecting rod

26. Hinge member fixing hole 27. Hinge member

28. Housing 29. Rubber Bushing

30. Bracket insertion hole 31. Hollow hole

32. Protrusion 33. Fixing Bracket

34. Through Hole

The present invention relates to a traction link device for a railway vehicle, and more particularly, by installing a traction link device between the trolley and the body to connect the trolley and the body of the railway vehicle so as to tow the body, the conventional body and the bogie Compared to the center pivot combined with the center pivot, the vehicle body can be towed with a stronger traction force, and the impact force and vibration transmitted from the bogie to the vehicle body through the connecting rod during the propulsion / braking of the railway vehicle are reduced by the conventional center pivot. It is possible to reduce the deterioration of the passenger's ride comfort caused by the resonance phenomenon of the vehicle body and the above-mentioned resonance phenomenon, and in particular, for the railroad vehicle to achieve the space saving of the vehicle, such that the traction link device can be applied to the tilting vehicle having a complicated structure. It relates to a traction link device.

In general, a bogie applied to a railway vehicle is a device that supports the weight of the vehicle body and at the same time distributes the weight of the vehicle body evenly on each wheel, and changes the direction freely with respect to the vehicle body to smoothly run the railway vehicle, The said trolley | bogie for a railway vehicle is comprised as follows.

The conventional railroad vehicle bogie 10, as shown in Fig. 1, a wheelset consisting of a wheel 12 and an axle (not shown); An axle box (11) in which bearings (not shown) are built so as to support journal portions at both ends of the axle and to be rotatable; A bogie frame (14) fixedly seated on an upper end of the axle box (11); A primary suspension device installed between the bogie frame 14 and the axle box 11 to primarily attenuate the vibration transmitted from the wheel 12; A secondary suspension device which is installed at the upper center portion of the trolley frame 14 and at the same time the vehicle body (not shown) is connected to and fixed to the upper end thereof to attenuate the vibration transmitted to the vehicle body secondarily; It is composed of a center pivot 17 installed in the central portion of the cart frame 14 to be rotatably coupled to the vehicle body.

In this case, a coil spring 13, a chevron spring, a rubber spring, and the like are used as the primary suspension device, and an air spring 15, a coil spring, and the like are used as the secondary suspension device.

In the conventional railway vehicle trolley 10 configured as described above, a center pivot 17 installed at the center of the trolley frame 14 is used as a method of connecting the trolley 10 and the vehicle body and transmitting traction force. In the case of the center pivot 17, the cantilever shape is installed at the lower part of the vehicle body and fixed to the center portion of the bogie frame. Since the center pivot 17 is coupled to the vehicle body by bolting, the railroad vehicle is propelled or braked. There was a big problem such that the center pivot 17 is damaged while the force acting on the propulsion / braking is directly acted on the center pivot 17.

Further, in the propulsion / braking of the railway vehicle as described above, since the action point at which the traction force of the center pivot 17 for the towing of the vehicle body acts is located at the lower end of the center portion of the bogie frame 14, the propulsion of the railway vehicle is promoted. Focusing more on the lower end of the center pivot 17 in contact with the bogie frame 14 than on the upper end of the center pivot 17 bolted to the vehicle body among the action forces acting on both ends of the center pivot 17 during braking. There was also a problem that leads to damage.

In addition, the center pivot 17 used in the conventional traction method between the vehicle 10 and the vehicle body can be used only for the general vehicle 10 as shown in FIG. 1, and a special tilting device is installed in the center of the vehicle 10. There was also a problem that the application of the center pivot 17 was limited, such as not applicable to a railroad car.

In addition, when pushing / braking a railway vehicle connected to the trolley 10 and the vehicle body by the center pivot 17, a passenger's ride comfort is transmitted from the trolley 10 to the vehicle body through the center pivot 17. In addition to the problem of greatly lowering the vibration, the vibration generated by the axial rotation in the left and right directions of the vehicle body during the vibration of the trolley 10, that is, pitching (pitching) is excited by the vehicle body through the center pivot (17) If there is a match, the vibration of the vehicle body caused by resonance further lowers the passenger's riding comfort, and the surrounding components also cause fatigue damage.

The present invention has been made in order to solve the above problems, the center pivot coupled to the conventional vehicle body by the traction link device is provided between the vehicle body and the body of the railway vehicle and the traction linkage is configured In addition, the vehicle body can be towed with stronger traction force, and the impact force and vibration transmitted from the bogie to the body through the connecting rod during the propulsion / braking of the railway vehicle are attenuated. It is an object of the present invention to reduce a passenger's riding comfort caused by the phenomenon and the resonance phenomenon.

Further, in the case of the traction link device, since the structure is simply configured to be connected and installed between the bogie and the vehicle body through a hinge member, the traction link device may be applied between the bogie and the body of a tilting vehicle having a complicated structure. There is another purpose to achieve the space saving of the balance.

In addition, by applying a rubber bushing to the inner side of the hinge member of both ends of the connecting rod of the traction link device, compared with the conventional center pivot system, the weight reduction can be achieved while reducing the risk of damage due to the impact force. Another object is to make the assembly and maintenance between the bogie and the vehicle body very simple.

Traction link device for a railway vehicle of the present invention, the railway vehicle trolley is provided with wheels before and after the trolley frame;

It is characterized in that the towing device is connected between the bogie and the body so that the towing of the body from the bogie can be made.

Here, the traction link device comprises a hinge fixing member which is respectively installed on the bottom of the bogie frame and the vehicle body; A connecting rod having both ends hinged to each of the hinge fixing members; Coupled to both ends of the connecting rod is characterized in that consisting of a hinge member for rotating the connection rod in each of the hinge fixing members.

In addition, an upper end of the hinge fixing member is formed with a connecting rod insertion groove having a yaw shape so that the connecting rod to be bolted can be rotated up and down, and the hinge member and the bolt coupling are formed at both sides of the connecting rod insertion groove. It is characterized in that the screw hole is formed to be made.

In addition, both ends of the connecting rod is characterized in that the hinge member fixing hole for inserting and fixing the hinge member is formed through.

And, the hinge member is a housing of the hollow cylinder; A cylindrical rubber bush installed in the housing to attenuate the force and vibration transmitted through the connecting rod during towing / braking; It is rotatably installed in the rubber bushing is characterized in that consisting of a cylindrical fixing bracket which is bolted to each hinge fixing member for coupling with the connecting rod.

In addition, the inner side of the rubber bushing is formed through the hollow hole in the form of a semi-circular arc, the inner center of the hollow hole is characterized in that the protrusion formed to attenuate the action force transmitted through the connecting rod during the traction / braking.

The protrusion may protrude from the inner circumferential surface of the hollow hole at a predetermined interval.

In addition, both ends of the fixing bracket is characterized in that the through-hole is formed for fastening the bolt.

Hereinafter, the towing link device for a railway vehicle of the present invention will be described in detail.

Figure 2 is a schematic structural diagram showing a railway vehicle bogie to which the present invention is applied, Figure 3 shows a state diagram coupled between the bogie and the vehicle body through the traction link device of the present invention, Figure 4 is a traction link apparatus of the present invention An enlarged perspective view is shown.

5 is a front sectional view of the hinge member, and FIG. 5B is a side sectional view of the traction link apparatus of the present invention.

Prior to describing the railway vehicle towing link device 20 of the present invention in detail, the railway vehicle trolley 10a of the present invention to which the present invention is applied will be described in comparison with the center pivot 17 combined with the conventional vehicle body. Along with the strong traction force, the vehicle body C can be pulled, and the impact force and vibration transmitted from the bogie 10a to the vehicle body C through the connecting rod 25 are reduced by the propulsion / braking of the railway vehicle. In order to reduce the resonance phenomenon of the vehicle body generated by the center pivot 17 and the deterioration of the passenger comfort caused by the resonance phenomenon, as shown in FIGS. 2 and 3, between the bogie 10a and the vehicle body C. Install the towing link device 20 coupled to the hinge member 27 to the traction link between the trolley 10a and the vehicle body C through the traction link device 20 so that the traction of the vehicle body C is made. It is composed.

Here, in the case of the trolley 10a on which one end of the traction link device 20 is installed and fixed, since the trolley 10a has the same configuration as that of the trolley 10 described in the related art, the conventional railway vehicle trolley 10 and For the same configuration, the same reference numerals are applied and duplicate description thereof will be omitted, and the detailed description of the present invention described below is provided between the vehicle 10a and the vehicle body C so that the traction force is applied to each other. Only the traction link device 20 to be described will be described.

As shown in FIG. 4, the traction link device 20 of the present invention connected between the bogie 10a and the vehicle body C as described above is provided on the bottom surface of the bogie frame 14 and the vehicle body C, respectively. A hinge fixing member 21 to be installed; Connecting rods 25 hinged at both ends to the hinge fixing members 21; Is coupled to both ends of the connecting rod 25 is composed of a hinge member 27 for the rotation of the connecting rod 25 in each of the hinge fixing members (21).

At this time, in the case of the hinge fixing member 21, both ends of the connecting rod 25, which is installed on the upper end of the trolley frame 14 and the bottom surface of the vehicle body C, respectively, to which the hinge member 27 is coupled. It is an element for fixing and supporting the connecting rod 25 so as to be rotatable from the fixing member 21, the upper end of the hinge fixing member 21 yaw so that the connecting rod 25 to be bolted up and down can be rotated up and down (凹) Connection rod insertion groove 22 of the form is formed, and the screw hole 23 is formed on both sides of the connection rod insertion groove 22 for the hinge member 27 and the bolt is engaged.

In addition, in the case of the connecting rod 25, the connecting rod 25 is installed to be connected to the hinge fixing member 21 installed on the upper end of the bogie frame 14 and the bottom surface of the vehicle body C, respectively. An element of the connecting medium through which the traction force is applied to allow the traction of the vehicle body C to be made. The overall shape is formed of a circular rod body, and both ends of the connecting rod 25 insert and fix the hinge member 27. The hinge member fixing hole 26 is formed through.

In addition, in the case of the hinge member 27, the hinge fixing member 21 is coupled to both ends of the connecting rod 25 by an action force, that is, a tensile force and a compressive force, which are transmitted through the connecting rod 25 when propelling / braking the railway vehicle. As an element to make the up and down rotation of the connecting rod 25 from the), as shown in Figure 5, the housing of the hollow cylinder 28; A cylindrical rubber bush (29) installed in the housing (28) to attenuate the force and vibration transmitted through the connecting rod (25) during traction / braking; It is rotatably installed in the rubber bushing 29 is composed of a cylindrical fixing bracket 33 which is bolted to each hinge fixing member 21 for coupling with the connecting rod 25.

In addition, semi-circular hollow holes 31 are formed in both sides of the rubber bushing 29, that is, both sides of the fixing bracket insertion hole 30 in the center of the rubber bushing 29, and the hollow holes 31 are formed. In the inner center of the projections 32 to attenuate the action force while the mutual contact with the one side of the hollow hole 31 by the action force transmitted through the connecting rod 25 during the traction / braking is protruding In the case of the projection part 32, it protrudes and spaced apart from the outer inner peripheral surface of the hollow hole 31 by a predetermined space | interval.

In addition, through holes 34 for fastening the bolt are formed at both ends of the fixing bracket 33.

Hereinafter, the operation process of the traction link device for a railway vehicle of the present invention will be described in detail.

Figure 6 shows the working state of the traction link device according to the present invention.

The operation of the traction link device 20 when the railway vehicle is propelled will be described first of the operation process of the traction link device 20 for the propulsion / braking of the railway vehicle to which the present invention is applied.

As shown in Figures 2 and 3, when the propulsion of the railway vehicle in the state in which the towing link device 20 is installed between the bogie 10a and the vehicle body C, the bogie 10a and the vehicle body C are connected. As shown in (a) of FIG. 6, while a tensile force is applied to the connecting rod 25 of the traction link device 20, a bogie among the hinge members 27 coupled to both ends of the connecting rod 25 is provided. 10a) The hinge member 27 of one end of the connecting rod 25 bolted to the hinge fixing member 21 at the upper end, that is, the front hollow hole 31 of the rubber bushing 29 installed in the housing 28 is press-fitted. While the protrusions 32 protruding in the inner center of the hollow hole 31 are in contact with the outer inner circumferential surface of the hollow hole 31 to transmit the tensile force according to the vehicle body traction, and at the same time the bottom surface of the vehicle body (C) After the hinge member 27 of the other end of the connecting rod 25 which is bolted on the hinge fixing member 21, that is, the rubber bushing 29 installed in the housing 28, As the lateral hollow hole 31 is press-fitted, the protrusion 32 protruding in the inner center of the hollow hole 31 makes contact with the outer inner circumferential surface of the hollow hole 31 to transfer the tensile force due to the towing of the vehicle body to the vehicle body. As such, the traction force is applied to the vehicle body C from the trolley 10a through the connecting rod 25 through which the tension force is applied, and the vehicle body C is towed.

In addition, when the rail vehicle is braked in a state in which the traction link device 20 is connected between the bogie 10a and the vehicle body C, the traction link device 20 connects the bogie 10a and the vehicle body C as described above. As shown in FIG. 6 (b) while the compressive force is applied on the connecting rod 25 of the hinge rods of the hinge member 27 coupled to both ends of the connecting rod 25, the upper end of the bogie 10a. The hollow hole 31 is press-fitted while the rear hollow hole 31 of the hinge member 27 of one end of the connecting rod 25 bolted onto the member 21, that is, the rubber bushing 29 installed in the housing 28 is press-fitted. The projection part 32 protruding in the inner center of the inner surface makes contact with the outer inner circumferential surface of the hollow hole 31 to transmit the compressive force according to the braking, and the hinge fixing member 21 of the bottom surface of the vehicle body C. The front hollow hole 31 of the hinge member 27 of the other end of the connecting rod 25 that is bolted to the wall, that is, the rubber bushing 29 installed in the housing 28 The compression force is applied such that the protrusion 32 protruding in the inner center of the hollow hole 31 makes contact with the outer inner circumferential surface of the hollow hole 31 to transmit the compressive force due to the braking to the vehicle body while being press-fitted. As the braking force is applied from the trolley 10a to the vehicle body C through the connecting rod 25, the vehicle body C stops together with the trolley 10a.

On the other hand, when the impact force or vibration caused by the linear or curved running in the state in which the trolley 10a and the vehicle body C are connected through the connecting rod 25 as described above, hinges provided at both ends of the connecting rod 25 Due to the elastic force of the member 27, that is, the rubber bushing 29 installed in the housing 28, the above-mentioned impact force and vibration transmitted from the trolley 10a to the vehicle body C through the connecting rod 25 are attenuated. do.

As described above, the above-described embodiments are described with reference to the most preferred examples of the present invention, but are not limited to the above embodiments, and it will be apparent to those skilled in the art that various modifications can be made without departing from the technical spirit of the present invention. .

Traction link device for a railway vehicle of the present invention, by providing a traction link device between the vehicle body and the body so that the traction force between the vehicle body and the body of the railway vehicle can be pulled, the center pivot coupled to the conventional vehicle body In addition, the vehicle body can be towed with a stronger traction force, and the resonance force of the car body generated by the center pivot is reduced by attenuating the impact force and vibration transmitted from the bogie to the car body through the connecting rod when propelling / braking the railway car. And it is excellent effect that can reduce the ride comfort of the passengers due to the resonance phenomenon.

Further, in the case of the traction link device, since the structure is simply configured to be connected and installed between the bogie and the vehicle body through a hinge member, the traction link device may be applied between the bogie and the body of a tilting vehicle having a complicated structure. There is also an effect that can achieve the space saving of the balance by.

In addition, by applying a rubber bushing to the inner side of the hinge member on both ends of the connecting rod of the traction link device, compared to the conventional center pivot method, it is possible to achieve a light weight with less risk of damage due to the impact force, and moreover to the traction link device There is also an effect such as easy assembly and maintenance between the bogie and the vehicle body.

Claims (8)

In the trolley for a railway vehicle, the traction link device is connected between the trolley and the vehicle body so that the towing of the vehicle body can be made from the trolley with the wheelset before and after the vehicle frame; The traction link device, Hinge fixing members are respectively provided on the bottom of the bogie frame and the vehicle body; A connecting rod having both ends hinged to each of the hinge fixing members; Is coupled to both ends of the connecting rod is composed of a hinge member for rotating the connecting rod in each of the hinge fixing member, The hinge member, A housing of the hollow cylinder; A cylindrical rubber bush installed in the housing to attenuate the force and vibration transmitted through the connecting rod during towing / braking; It is rotatably installed in the rubber bushing and consists of a cylindrical fixing bracket which is bolted to each hinge fixing member for coupling with the connecting rod, Semi-circular hollow holes are formed through the inner side of the rubber bush, and the inner central portion of the hollow hole protrudes a protrusion for attenuating an action force transmitted through the connecting rod during towing / braking. Towing linkage. delete According to claim 1, wherein the upper end of the hinge fixing member is formed with a connecting rod insertion groove of the yaw shape so that the connecting rod to be bolted up and down can be rotated, the hinge member on both sides of the connecting rod insertion groove Traction linkage device for a railway vehicle bogie, characterized in that a screw hole is formed so that the bolt and the bolt. [4] The traction link device according to claim 1 or 3, wherein a hinge member fixing hole for inserting and fixing a hinge member is formed at both ends of the connection rod. delete delete The traction link apparatus of claim 1, wherein the protrusion is formed to be spaced apart from the inner circumferential surface of the hollow hole at a predetermined interval. The tow linkage apparatus of claim 1, wherein through holes for fastening bolts are formed at both ends of the fixing bracket.

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