WO2018076781A1

WO2018076781A1 - Railway vehicle bogie and shaft end power generation assembly thereof

Info

Publication number: WO2018076781A1
Application number: PCT/CN2017/092204
Authority: WO
Inventors: 许善超; 穆凤军; 邵文东; 刘振明; 邢书明; 杜伟
Original assignee: 中车齐齐哈尔车辆有限公司
Priority date: 2016-10-31
Filing date: 2017-07-07
Publication date: 2018-05-03
Also published as: CN106428081B; CN106428081A

Abstract

A railway vehicle bogie and shaft end power generation assembly thereof, the shaft end power generation assembly being disposed below a framework (1) of the bogie. The shaft end power generation assembly comprises a power generator (3) hung on the framework (1) of the bogie and connected to an axle by means of a belt (2), and also comprises a belt tension mechanism (4) disposed below the framework (1). The belt tension mechanism (4) is capable of longitudinally deforming and is longitudinally blocked between the power generator (3) and a guide frame (5) of a side bracket of the bogie in a pre-compression state so as to provide a tension force for the belt (2), thereby providing belt tension force for the belt (2) which may vary along with conditions of the vehicle. The present invention not only has a simple structure, but also occupies a small space and may assist in optimizing design parameters of the vehicle.

Description

Railway vehicle bogie and its shaft end power generation device

This application claims priority to Chinese Patent Application No. 201610971364.3, entitled "A Railway Vehicle Bogie and Its Shaft End Power Generation Device", filed on October 31, 2016, the entire contents of which are hereby incorporated by reference. Combined in this application.

Technical field

The invention relates to the technical field of railway vehicles, in particular to a bogie of a railway vehicle and a shaft end power generating device thereof.

Background technique

QT2 type hatchback transport vehicle, the vehicle is a group of two, the hand brake device and the coupler buffer device are respectively arranged at the two ends of the vehicle group, the middle part of the vehicle group is connected by the joint connector, the concave bottom body body carrying structure is provided on the vehicle. Hydraulic and electrical systems.

In order to meet the power supply needs of transporting refrigerated trucks, such transport vehicles require a bogie to provide power.

In the prior art, the bogie with the power generating device adopts the principle of lever, the lever fulcrum is in the middle, the upper end is the adjusting end, and the lower end is the working end; by rotating the upper end of the rotating hand wheel to compress or release the spring, the pressure of the motor is realized by the lever Tight or loose, adjust the force of the motor belt and install and remove the belt.

However, the shortcoming of this structure is that it takes up space above the bogie frame, and has certain space requirements above the frame. The corresponding height of the car body is increased, which adversely affects the vehicle design.

Therefore, how to design a bogie of a railway vehicle and its shaft end power generating device to reduce the influence of the power generating device on the structure of the bogie frame has become a technical problem that is urgently needed to be solved by those skilled in the art.

Summary of the invention

The object of the present invention is to provide a bogie of a railway vehicle and a shaft end power generating device thereof, and a shaft end power generating device is disposed under the bogie frame, which does not occupy the space above the frame, has a simple structure and takes up small space, and has a steering structure. The structural impact of the frame is small and the optimization of vehicle design parameters can be achieved.

To achieve the above object, the present invention provides a shaft end power generating device for a railway vehicle bogie, which comprises a generator comprising a frame suspended from the bogie and connected to the axle by a belt, further comprising a belt tensioning mechanism disposed under the frame, the belt tensioning mechanism having a longitudinal deformation capability and longitudinally resisting in a pre-compressed state Between the generator and the guide frame of the bogie side frame to provide a tensioning force of the belt.

The shaft end power generation device of the invention, the structure of the generator suspension and the bogie, belongs to the sprung member, and the axle belongs to the unsprung member, and the generator is connected to the axle through the belt to realize power generation, due to the empty to the heavy vehicle and the running of the vehicle. The center distance between the pulley connected to the generator and the pulley connected to the axle will change, which will cause the tension of the belt to change. To ensure the normal operation of the motor, it is necessary to set a center distance between the pulleys. A belt tensioning mechanism that adjusts the tension to change. The invention provides a belt tensioning mechanism under the frame, and suspends the generator on the frame of the bogie, does not occupy the space above the frame of the bogie, and can reduce the structural influence on the bogie; in particular, the belt sheet The tensioning mechanism longitudinally resists between the generator and the bogie frame of the bogie in a pre-compressed state, thereby providing the belt with a belt tensioning force that can be changed according to the condition of the vehicle, which is not only simple in structure, but also has a small occupied space and can utilize steering. The existing installation space is installed to assist in the optimization of vehicle design parameters.

Optionally, the belt tensioning mechanism includes a longitudinally movable adjusting member and an elastic member having a longitudinal deforming capability, and one end of the elastic member abuts against the generator, and the other end abuts the adjusting member. The amount of pre-compression of the elastic member is adjusted by the amount of movement of the adjusting member.

Optionally, the belt tensioning mechanism further includes a longitudinally extending lead screw, two ends of the lead screw respectively extending to the generator and the guide frame, and being circumferentially fixed with the guide frame; The elastic member is a spring that is fitted to the lead screw, and the adjusting member is an adjusting nut that is screwed with the screw. The lead screw is longitudinally abutted against the one end of the spring under the elastic force of the spring. Guide frame.

Optionally, the belt tensioning mechanism further includes a spring pad that is fitted to the lead screw, and the spring abuts the generator through the spring pad.

Optionally, the frame is provided with a safety hanger, the generator has a safety suspension shaft extending transversely through the safety hanger, the lead screw longitudinally runs through the safety suspension shaft; one end of the spring pad is The plane abutting the spring and the other end being an arcuate surface abutting the safety suspension shaft.

Optionally, the belt tensioning mechanism further includes an end nut screwed at an end of the lead screw away from the lead frame, the end portion being adjusted when the adjusting nut is adjusted in position and fixed relative to the lead screw The nut is threaded in the direction of the guide frame and acts on the safety suspension shaft through the intermediate member such that the lead screw is longitudinally away from the guide frame under the reaction force of the safety suspension shaft.

Optionally, the belt tensioning mechanism further includes a first positioning member that fixes the lead screw circumferentially to the guide frame.

Optionally, the first positioning member is a first locking bolt, and one end of the lead screw corresponding to the guiding frame is provided with a plane segment of a predetermined axial length, and the plane segment is external to the lead screw a thread is circumferentially connected; the first locking bolt is penetrated by a radial direction of the lead screw through a side surface of the lead frame and abuts against the plane segment to perform the lead screw and the guide frame Weekly positioning.

Optionally, the belt tensioning mechanism further includes a second locking bolt mounted on the adjusting nut, and after the adjusting nut is adjusted in position, the second locking bolt penetrates in a radial direction of the lead screw The adjustment nut abuts against the planar end to limit rotation of the adjustment nut along the lead screw.

The present invention also provides a railway vehicle bogie comprising the shaft end power generating device of any of the above.

DRAWINGS

Figure 1 is a perspective view of a railway vehicle bogie provided in an embodiment of the present invention;

Figure 2 is a lateral side view of the bogie of Figure 1;

Figure 3 is a partially enlarged schematic view showing the shaft end power generating device of the bogie shown in Figure 2;

Figure 4 is a longitudinal side view of the shaft end power generating device of the bogie shown in Figure 2;

Figure 5 is a partially enlarged schematic view showing the safety hanging portion of the bogie of Figure 3;

Figure 6 is a longitudinal side view of the bogie in the bogie of Figure 1 with the shaft end power generating device removed.

In Figure 1-6:

Frame 1, safety hanger 11, belt 2, generator 3, safety suspension shaft 31, belt tensioning mechanism 4, adjusting member 41, elastic member 42, screw rod 43, spring washer 44, end nut 45, first positioning member 46. The second locking bolt 47, the guide frame 5, the large pulley 6, and the small pulley 7.

detailed description

The invention provides a bogie of a railway vehicle and a shaft end power generating device thereof. The shaft end power generating device is arranged below the bogie frame 1, which does not occupy the space above the frame 1. The structure is simple, the occupied space is small, and the steering structure is The structure of the frame 1 has a small influence and can optimize the vehicle design parameters.

The present invention will be specifically described below in conjunction with the accompanying drawings, so that those skilled in the art can accurately understand the technical solutions of the present invention.

For convenience of explanation, this paper defines the direction with reference to the running state of the railway vehicle, with the direction parallel to the running direction being the longitudinal direction, in the longitudinal direction, the direction in front of the running direction is the front, and the direction facing the front is the back; In the plane of the track surface, the direction perpendicular to the longitudinal direction is the transverse direction; the direction perpendicular to the track surface is the vertical direction, and in the vertical direction, the direction pointing to the track surface is downward, and the direction away from the track surface is upward.

The axial, circumferential, and radial directions described herein are all referred to by the lead screw 43. Since the lead screw 43 of the present invention extends in the longitudinal direction, the axial direction is the longitudinal direction.

The first and second words herein are merely used to distinguish two or more components or structures that are identical or similar, and do not represent a particular limitation on the order of the arrangement.

The shaft end described herein refers to the end of the axle, which is usually extended laterally, and the two ends of the axle are called the shaft end. Meanwhile, the three-axle bogie is taken as an example, and the axle in the middle is called The intermediate axle is the end axle at the longitudinal ends, and the axle end power generating device of the present invention means that the power generating device is disposed at the axial end of the end axle.

As shown in FIG. 1 and FIG. 2, the present invention provides a railway vehicle bogie, which can be a three-axle bogie, and a power generating device is connected to the shaft end of the bogie, which is called a shaft end power generating device.

As shown in FIG. 2, the shaft end power generating apparatus of the present invention includes a generator 3, and in order to drive the generator 3, a large pulley 6 which is synchronized with the axle of the axle end of the railway vehicle may be disposed, and then at the input end of the generator 3. A small pulley 7 is connected, and the small pulley 7 is connected to the large pulley 6 through the belt 2; during the running of the railway vehicle, the axle continuously rotates, thereby driving the generator 3 The connected small pulley 7 rotates, transmits power to the generator 3, and then converts kinetic energy into electrical energy through the generator 3.

At the same time, the generator 3 is hung on the frame 1 of the bogie. On the one hand, the frame 1 is above the axle box spring, so the generator 3 connected to the frame 1 belongs to the sprung member, and the axle box spring has the generator 3 The effect of buffer damping; on the other hand, the axle belongs to the component under the axial spring, which belongs to the unsprung component, and the generator 3 is connected to the axle through the belt 2, during the operation of the empty car to the heavy vehicle and the vehicle, the large pulley The center distance between the 6 and the small pulley 7 changes, which in turn causes the belt 2 tension to change.

In order to ensure the normal operation of the generator 3, the shaft end power generating device of the present invention further includes a belt tensioning mechanism 4 having a longitudinal deformation capability and capable of longitudinally resisting the generator 3 and the bogie side in a pre-compressed state. Between the guide frames 5 of the frame, so that the belt 2 is in a tensioned state, the tension of the belt 2 is provided.

Moreover, since the belt tensioning mechanism 4 has a longitudinal deformation capability, when the center distance of the large pulley 6 and the small pulley 7 changes, the belt tensioning mechanism 4 changes the deformation amount correspondingly, thereby adapting to the change of the center distance. It is avoided to affect the normal tension of the belt 2, thereby ensuring that the power is continuously and reliably transmitted to the generator 3 through the belt 2, thereby achieving normal power generation.

Moreover, the belt tensioning mechanism 4 can be disposed under the bogie frame 1 to avoid occupying the space above the frame 1, and the generator 3 suspended from the frame 1 is disposed at the axial end of the frame 1, effectively utilizing the bogie The limited installation space does not require large changes to the structure of the bogie, so that the bogie can maintain the original performance; in addition, the belt tensioning mechanism 4 has a simple structure, is convenient to use, and occupies a small space, and can assist in realizing vehicle parameters. Optimized design.

As shown in FIG. 3 and FIG. 4, in the shaft end power generating device of the present invention, the belt tensioning mechanism 4 may specifically include an adjusting member 41 and an elastic member 42 having a longitudinal deforming capability, and one end is in contact with the generator 3. The other end abuts against the adjusting member 41; the adjusting member 41 is longitudinally movable, and the pre-compression amount of the elastic member 42 can be adjusted by controlling the amount of movement of the adjusting member 41 in the longitudinal direction to control the tension of the belt 2.

The elastic member 42 may specifically be a spring. In order to make the deformation of the spring in the longitudinal direction and facilitate the adjustment of the pre-compression amount, the belt tensioning mechanism 4 may further include a longitudinally extending lead screw 43 extending from both ends of the lead screw 43 to generate electricity. The elastic member 42 is a spring that is fitted to the lead screw 43 and the adjusting member 41 can be disposed as an adjusting nut threadedly engaged with the lead screw 43.

On one hand, the lead screw 43 and the guide frame 5 can be fixed circumferentially, and then the adjusting nut is rotated in the direction of the compression spring so that the spring is in a compressed state; on the other hand, since one end of the spring abuts against the generator 3, close to the guide One end of the frame 5 abuts against the adjusting nut. When the adjusting nut compresses the spring and the circumferential movement of the lead screw 43 relative to the guide frame 5 is defined, the elastic force of the spring pushes the adjusting nut toward the direction of reducing the compression deformation, that is, The adjusting nut is vertically pushed in the direction of the guide frame 5, and the adjusting nut is threadedly engaged with the lead screw 43. The longitudinal top thrust acts on the lead screw 43, so that the lead screw 43 moves toward the guide frame 5, and then the longitudinal end of the lead screw is abutted at the end thereof. At the guide frame 5, at this time, the lead screw 43 is longitudinally positioned by means of the spring and the guide frame 5. Moreover, since the spring is always in a compressed state during the entire use, the longitudinal abutting force against the lead screw 43 is always present, and the stability of the longitudinal positioning of the lead screw 43 during use is ensured.

As shown in FIG. 3, the belt tensioning mechanism 4 may further include a spring pad 44 that is fitted to the lead screw 43. The spring may abut against the generator 3 through the spring pad 44, on the one hand, buffering, and on the other hand, The positioning reliability of the spring. The spring pad 44 can be set according to the installation environment of the spring.

As shown in FIG. 4, in an embodiment, the frame 1 may be provided with a safety hoist 11. To prevent the structure of the hoisting generator 3 from being damaged, the generator 3 may be dropped on the track, and the generator 3 may also be safely suspended. 31. The safety suspension shaft 31 extends through the safety hoist 11 and can extend laterally. In normal use, the safety suspension shaft 31 does not contact the safety hoist 11. The safety suspension shaft 31 passes only when the generator 3 is at risk of falling. Hang 11 carrying. In the present invention, one end of the spring can be abutted against the safety suspension shaft 31 of the generator 3 to achieve the abutment with the generator 3; at this time, the lead screw 43 extends longitudinally through the safety suspension shaft 31, and at the same time, One end of the spring pad 44 is disposed as a plane abutting the spring, and the other end is disposed as an arc surface abutting the safety suspension shaft 31. The spring pad 44 is similar to the structure of the sleeve and may have a certain longitudinal length, here One end and the other end of the spring pad 44 refer to the end faces on both longitudinal sides thereof.

As shown in FIG. 5, the safety hanger 11 can specifically extend downward from the lower cover of the side frame and can be welded. The lower cover of the side frame. In one arrangement, a U-shaped steel plate can be welded on the lower cover of the side frame, the steel plate is oriented upward with the U-shaped open end, and is welded to the lower cover of the side frame, and then The cover plate encloses a mouth-shaped mounting hole as a lifting hole for the safety hanger 11, and the steel plate at this time constitutes a safety hanger 11. The safety hoist 11 of this type of structure not only has a simple structure, but also gives a large installation and movement space for the safety suspension shaft 31, avoids contact with the safety suspension shaft 31 in normal use, and can be used when the generator 3 is at risk of falling. The safety suspension shaft 31 forms a reliable support.

As shown in FIG. 6, the guide frame 5 may be provided with an abutment hole or the like on its end surface abutting on the lead screw 43 to assist in improving the reliability of the longitudinal positioning of the lead screw 43.

In addition, the belt tensioning mechanism 4 may further include an end nut 45 screwed to one end of the lead screw 43 away from the guide frame 5, during normal use (ie, the disassembly and assembly of the generator 3 is not required, and the belt 2 does not need to be disassembled. When the end nut 45 is directly screwed to the lead screw 43 and does not exert a force relationship with other components; in use, after the adjusting nut is adjusted in position, it is fixed relative to the lead screw 43. At this time, if the belt 2 needs to be disassembled, The end nut 45 can be screwed into the direction of the guide frame 5, and an intermediate member is provided between the end nut 45 and the safety suspension shaft 31 so that the force of the longitudinal movement of the end nut 45 is transmitted to the safety through the intermediate member. The suspension shaft 31; because the longitudinal position of the safety suspension shaft 31 is fixed, the end nut 45 is subjected to the reaction force of the safety suspension shaft 31 away from the guide frame 5 in the longitudinal direction, and the reaction force is transmitted to the screw rod 43 screwed thereto. Since the circumferential rotation of the lead screw 43 is defined by the guide frame 5, the lead screw 43 is now moved longitudinally away from the guide frame 5 under the reaction force of the safety suspension shaft 31 away from the guide frame 5, and is further separated from the longitudinal direction of the guide frame 5. The top working position makes the lead screw 43 and the guide frame There is a longitudinal gap between 5; then, the generator 3 can be pushed in the direction of the guide frame 5 so that the belt 2 is in a relaxed state for disassembly.

The intermediate member may be of a sleeve type and can be fitted to the lead screw 43 and abuts the end nut 45 at one end in the longitudinal direction, and the other end abuts against the safety suspension shaft 31 to transmit a longitudinal force; the intermediate member can Removed from the lead screw 43 after the disassembly is completed.

On the basis of the above, the belt tensioning mechanism 4 may further include a first positioning member 46 for circumferentially positioning the lead screw 43, by which the lead screw 43 is fixedly connected to the guide frame 5 in the circumferential direction.

The structure of the circumferential positioning is various. In an embodiment, the first positioning member 46 can be The first locking bolt, the end of the lead screw 43 corresponding to the guide frame 5 is provided with a plane segment which is connected with the external thread of the lead screw 43 in the circumferential direction, that is, the lead screw 43 corresponds to the guide frame 5 One end does not have a circumferentially buttted external thread, but has a threaded section and a flat section that are connected to each other in the circumferential direction; the first locking bolt is radially penetrated from the side of the guide frame 5 by the lead screw 43 and abuts against the top In the plane segment, the lead screw 43 and the guide frame 5 are locked in the circumferential direction.

In order to ensure the reliability of the locking positioning, the plane segment has a certain width in the circumferential direction of the lead screw 43 so as to be able to correspond to the bolt head end of the first locking bolt, that is, the width of the plane segment in the circumferential direction should be greater than the first lock. The width of the bolt head end of the bolt is tightened to accommodate the bolt head end; and the flat section has a predetermined axial length so that the lead bolt 43 can maintain circumferential locking contact with the first lock bolt during axial movement.

The belt tensioning mechanism 4 may further include a second locking bolt 47 mounted on the adjusting nut, the first locking bolt penetrating the adjusting nut in the radial direction of the screw rod 43 and abutting against the plane segment after the adjusting nut is adjusted into position. The adjustment nut is rotated in the circumferential direction of the lead screw 43.

At this time, by means of the second locking bolt 47, the adjusting nut can be locked and positioned in the position after being adjusted into position, so as to prevent the adjusting nut from continuing to rotate along the lead screw 43 due to the elastic force of the spring, which affects the determination of the spring pre-compression amount. The spring can lock the pre-compression amount to form a pre-compression amount matched with the vehicle to ensure the running reliability of the vehicle.

In particular, the second locking bolt 47 and the first locking bolt can share a flat section on the lead screw 43 to realize the circumferential limit of the lead screw 43 and the circumferential limit of the adjusting nut, and the structure is simple and convenient to use. .

Wherein, the predetermined axial length of the plane segment can be set according to the axial movement amount of the screw rod 43 and the axial movement amount of the adjusting nut, and the plane segment should extend longitudinally from the position where the first locking bolt is located to the maximum compression amount of the spring. The position of the nut is adjusted to cooperate with the first and second locking bolts 47.

The shaft end power generating device of the present invention can be assembled, disassembled, and installed with the belt 2 by the following steps:

When assembling, the generator 3 is first mounted to the frame 1 through a round pin, and then the safety suspension shaft 31 is The safety hole is inserted into the hanger hole of the generator 3, and the spring pad 44 and the spring are placed between the generator 3 and the guide frame 5, and the shaft hole of the safety suspension shaft 31 is aligned to generate the screw 43 from the power generation. The outer side of the machine 3 penetrates and passes through the spring pad 44 and the spring, continues to thread the lead screw 43, puts the adjusting nut and screws the positive lead screw 43, and continuously rotates the adjusting nut until the belt of the generator 3 reaches the requirement.

When the belt 2 is disassembled, the adjustment nut is rotated in the direction of the frame 5, and the guide frame 5 is abutted to lock the first locking bolt, and the end nut 45 is rotated to move the screw 43 to the outside; A locking bolt and a second locking bolt 47 are used to prevent the rotation of the lead screw 43. During the movement of the lead screw 43 to the outside, the spring is further compressed; when the lead screw 43 moves a certain distance, the generator 3 is guided. Pushing in the direction of the frame 5 causes the belt 2 to be in a relaxed state for disassembly.

When the belt 2 is installed, the generator 3 is pushed in the direction of the frame 5 when the belt 2 is removed, and after the belt 2 is mounted, the lead screw 43 is strung in the direction of the frame 5 until the lead screw 43 The end portion is longitudinally abutting against the end surface of the guide frame 5. At this time, the adjusting nut is rotated to make the tension of the belt 2 meet the needs, and the first locking bolt is locked to prevent loosening.

In addition, in the railway vehicle bogie of the present invention, only the shaft end power generating device has been described. For other parts, please refer to the prior art, and details are not described herein again.

The railway vehicle bogie and the shaft end power generating device provided by the present invention are described in detail above. The principles and embodiments of the present invention have been described herein with reference to specific examples. The description of the above embodiments is only for the purpose of understanding the core concepts of the present invention. It should be noted that those skilled in the art can make various modifications and changes to the present invention without departing from the spirit and scope of the invention.

Claims

A shaft end power generating device for a railway vehicle bogie, comprising a generator (3) suspended from a frame (1) of the bogie and connected to the axle via a belt (2), characterized by further comprising a frame disposed on the frame (1) a belt tensioning mechanism (4) below, the belt tensioning mechanism (4) having a longitudinal deformation capability and longitudinally resisting the guide frame of the generator (3) and the bogie side frame in a pre-compressed state Between (5) to provide the tension of the belt (2).
A shaft end power generating apparatus according to claim 1, wherein said belt tensioning mechanism (4) includes a longitudinally movable adjusting member (41) and an elastic member (42) having a longitudinal deforming ability, said elasticity One end of the piece (42) abuts against the generator (3), and the other end abuts the adjusting member (41) to adjust the elastic member (42) by the amount of movement of the adjusting member (41) The amount of pre-compression.
A shaft end power generating apparatus according to claim 2, wherein said belt tensioning mechanism (4) further comprises a longitudinally extending lead screw (43), and both ends of said lead screw (43) extend to each other The generator (3) and the guide frame (5) are fixed circumferentially with the guide frame (5); the elastic member (42) is a spring that is fitted to the lead screw (43), The adjusting member (41) is an adjusting nut threadedly engaged with the lead screw (43), and the lead screw (43) is longitudinally abutted against the guide frame (5) with one end thereof under the elastic force of the spring .
A shaft end power generating apparatus according to claim 3, wherein said belt tensioning mechanism (4) further comprises a spring pad (44) fitted to said lead screw (43), said spring passing through said spring The pad (44) abuts the generator (3).
A shaft end power generating apparatus according to claim 4, wherein said frame (1) is provided with a safety hoist (11), and said generator (3) has a safety hoist transversely running through said safety hoist (11) a shaft (31), the lead screw (43) extends longitudinally through the safety suspension shaft (31); one end of the spring pad (44) is a plane abutting the spring, and the other end is a safety crane The curved surface on which the shaft (31) abuts.
A shaft end power generating device according to claim 5, wherein said belt tensioning mechanism (4) further comprising an end nut (45) screwed to an end of the lead screw (43) away from the guide frame (5), when the adjusting nut is adjusted in position and fixed relative to the lead screw (43) The end nut (45) is screwed in the direction of the guide frame (5) and acts on the safety suspension shaft (31) through the intermediate member such that the lead screw (43) is in the safety The reaction force of the suspension shaft (31) is longitudinally away from the guide frame (5).
A shaft end power generating apparatus according to any one of claims 3-6, wherein said belt tensioning mechanism (4) further comprises circumferentially fixing said lead screw (43) to said guide frame (5) The first positioning member (46).
The shaft end power generating device according to claim 7, wherein the first positioning member (46) is a first locking bolt, and the end of the lead screw (43) corresponding to the guide frame (5) a planar section having a predetermined axial length, the planar section being circumferentially coupled to the external thread of the lead screw (43); the first locking bolt being penetrated by the radial direction of the lead screw (43) The side of the guide frame (5) abuts against the plane segment to circumferentially position the lead screw (43) and the guide frame (5).
A shaft end power generating apparatus according to claim 8, wherein said belt tensioning mechanism (4) further comprises a second locking bolt (47) mounted to said adjusting nut, said adjusting nut being adjusted in position The second locking bolt (47) penetrates the adjusting nut in the radial direction of the lead screw (43) and abuts against the planar end to limit the adjusting nut along the lead screw (43) The rotation.
A railway vehicle bogie characterized by comprising the shaft end power generating device according to any one of claims 1-9.