Follow-up bogie for railway vehicle

Abstract

The utility model relates to a follow-up bogie for a railway vehicle. The follow-up bogie comprises a bogie framework, a walking wheel set, guiding assemblies arranged in pairs and an installation adjusting assembly used for installing the guiding assemblies to the bogie framework. The walking wheel set comprises a plurality of walking wheels. The walking wheels are arranged on the upper surface of the track and arranged in the extending direction of the track. The walking wheels are rotationally installed on the bogie framework. The guiding assemblies arranged in pairs are symmetrically arranged on the two sides of the track. The guide assembly comprises a guide wheel frame and two guide wheels used for abutting against the side face of the rail. The guide wheel has the advantages that when a rail vehicle runs along the rail, friction is continuously generated between the surface of the guide wheel and the side face of the rail, so that a gap is generated between the surface of the guide wheel and the rail due to abrasion, the guide assembly is pressed tightly by installing the adjusting assembly to enable the guide wheel to be close to the rail and abut against the side face of the rail, abrasion is compensated, and the service life of the guide wheel is prolonged. The service life of the guide wheel is prolonged, and the cost is low.

Description

Technical Field

[0001] This utility model relates to a follow-up bogie for rail vehicles. Background Technology

[0002] Follow-up bogies are key components in rail transit and industrial vehicles. Their core function is to ensure stable operation of vehicles under complex track conditions by dynamically adjusting the wheel-rail contact state.

[0003] However, the guide wheels in existing servo bogies are usually fixed "dead wheels." After continuous friction with the track, the surface of the guide wheel wears down, creating a gap between it and the track, preventing proper contact with the track side. This can cause instability or excessive swaying during vehicle operation. Therefore, once the guide wheel surface wears down, it must be replaced with a new one, which is costly and shortens the guide wheel's lifespan. Utility Model Content

[0004] The purpose of this invention is to provide a follow-up bogie for rail vehicles to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A follow-up bogie for rail vehicles includes: a bogie frame, a running wheel set, paired guide components, and an installation adjustment assembly for mounting the guide components to the bogie frame; the running wheel set includes: a plurality of running wheels; the plurality of running wheels are disposed on the upper surface of the track and arranged along the track extension direction; the running wheels are rotatably mounted to the bogie frame; the paired guide components are symmetrically disposed on both sides of the track; the guide components include: a guide wheel frame and two guide wheels for abutting against the side of the track; the installation adjustment assembly includes: an adjusting bolt, an elastic block, and a handwheel; the two guide wheels are respectively rotatably mounted to both ends of the guide wheel frame; the adjusting bolt passes through the middle of the guide wheel frame; the elastic block is disposed between the bogie frame and the guide wheel frame; the adjusting bolt passes through the bogie frame, the elastic block, and the guide wheel frame together to form a threaded connection with the handwheel, and the handwheel is tightened to clamp the bogie frame, the elastic block, and the guide wheel frame; the middle part of the elastic block protrudes towards the guide wheel frame and abuts against the guide wheel frame.

[0007] As a further embodiment of this utility model: the bogie frame has two positioning plates; the guide wheel frame is disposed between the two positioning plates; the positioning plates have elongated holes that restrict and guide the movement of the guide wheel relative to the bogie frame; the axle of the guide wheel is movably disposed in the elongated holes.

[0008] As a further embodiment of this utility model: the guide wheel axle and the guide wheel frame are connected by a bearing; the guide wheel axle is a fastening bolt, and the axial position of the guide wheel and the guide wheel frame relative to the bogie frame is locked by bolt connection.

[0009] As a further embodiment of this utility model: the elongated hole is a waist-shaped hole; the length of the waist-shaped hole extends along the axial direction of the adjusting bolt; the width of the waist-shaped hole is greater than the diameter of the guide wheel axle so that the guide wheel frame can swing relative to the bogie frame around the elastic block.

[0010] As a further embodiment of this utility model: the elongated hole is an arc-shaped hole; the center of the arc-shaped hole is the center of the swing of the guide wheel frame relative to the bogie frame.

[0011] As a further embodiment of this utility model: there are two guide components located on the same side of the track; the two guide components are arranged along the height direction.

[0012] As a further embodiment of this utility model, the following means for the follow-up bogie for rail vehicles also includes: a number of reinforcing members for increasing the strength of the bogie frame; multiple through holes are formed on both sides of the bogie frame; the reinforcing members are installed to the bogie frame through the through holes.

[0013] As a further embodiment of this utility model: both ends of the bogie frame are provided with connecting parts that dock with the outside; the follow-up bogie for rail vehicles also includes: a rotating shaft and side bearings; the connecting parts are rotatably mounted to the rotating shaft; the side bearings are provided at both ends of the connecting parts.

[0014] Compared with the prior art, the beneficial effects of this utility model are: during the process of the rail vehicle traveling along the track, the surface of the guide wheel will continuously rub against the side of the track, which will cause the surface of the guide wheel to wear and create a gap between it and the track. By installing the adjustment component to press the guide component, the guide wheel is brought closer to the track and abuts against the side of the track, compensating for wear, improving the service life of the guide wheel, and reducing costs.

[0015] When the side of the track is uneven or curves, the structure of the elastic block ensures that the guide wheel always abuts against the side of the track, improving the stability and balance of the rail vehicle during travel.

[0016] The structural design of the reinforcement components can increase the strength of the bogie frame.

[0017] Other features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a three-dimensional diagram of a servo bogie used in rail vehicles;

[0019] Figure 2 yes Figure 1 A partial exploded view of a type of servo bogie used in rail vehicles;

[0020] Figure 3 yes Figure 1 A plan view of a type of servo bogie used in rail vehicles;

[0021] Figure 4 yes Figure 3 A left view of a type of bogie used in rail vehicles;

[0022] Figure 5 yes Figure 3 A top view of a type of bogie used in rail vehicles;

[0023] Figure 6 yes Figure 3 A cross-sectional view at point AA of a servo bogie used in rail vehicles;

[0024] Figure 7 yes Figure 3 A cross-sectional view at the BB point of a follow-up bogie used in rail vehicles.

[0025] List of reference numerals in the attached diagram: 100 bogie for rail vehicles, 10 bogie frame, 11 positioning plate, 111 elongated hole, 12 through hole, 13 connecting part, 20 traveling wheel, 30 guide assembly, 31 guide wheel frame, 32 guide wheel, 40 mounting and adjusting assembly, 41 adjusting bolt, 42 elastic block, 43 handwheel, 50 reinforcing part, 60 rotating shaft, 70 side bearing. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1 to 7In this embodiment of the present invention, a follow-up bogie 100 for a rail vehicle includes: a bogie frame 10, a running wheel set, a guide assembly 30, and a mounting and adjusting assembly 40. The guide assemblies 30 are arranged in pairs. The mounting and adjusting assembly 40 is used to mount the guide assemblies 30 to the bogie frame 10. The running wheel set includes: a plurality of running wheels 20. The plurality of running wheels 20 are disposed on the upper surface of the track and arranged along the track extension direction. The running wheels 20 are rotatably mounted to the bogie frame 10. The paired guide assemblies 30 are symmetrically arranged on both sides of the track. The guide assembly 30 includes: a guide wheel frame 31 and two guide wheels 32. The guide wheels 32 are used to abut against the side of the track. The mounting and adjusting assembly 40 includes: an adjusting bolt 41, an elastic block 42, and a handwheel 43. The two guide wheels 32 are respectively rotatably mounted to both ends of the guide wheel frame 31. The adjusting bolt 41 passes through the middle of the guide wheel frame 31. The elastic block 42 is disposed between the bogie frame 10 and the guide wheel frame 31. The adjusting bolt 41 passes through the bogie frame 10, the elastic block 42, and the guide wheel frame 31, forming a threaded connection with the handwheel 43. Tightening the handwheel 43 clamps the bogie frame 10, the elastic block 42, and the guide wheel frame 31. The center of the elastic block 42 protrudes towards the guide wheel frame 31 and abuts against it. Specifically, during the rail vehicle's travel along the track, the surface of the guide wheel 32 continuously rubs against the side of the track, causing wear on the guide wheel 32 and creating a gap between it and the track. Installing the adjusting assembly 40 to press the guide assembly 30 brings the guide wheel 32 closer to the track and abuts against the side of the track, compensating for wear, increasing the service life of the guide wheel 32, and reducing cost.

[0028] In one specific implementation, the bogie frame 10 has two positioning plates 11. A guide wheel bracket 31 is disposed between the two positioning plates 11. An elongated hole 111 is formed on the positioning plate 11. The elongated hole 111 restricts and guides the movement of the guide wheel 32 relative to the bogie frame 10. The axle of the guide wheel 32 is movably disposed in the elongated hole 111.

[0029] In one specific implementation, the axle of the guide wheel 32 and the guide wheel frame 31 are connected by a bearing. The axle of the guide wheel 32 is a fastening bolt, which locks the axial position of the guide wheel 32 and the guide wheel frame 31 relative to the bogie frame 10.

[0030] In one specific implementation, the elongated hole 111 is a slotted hole. The length of the slotted hole extends axially along the adjusting bolt 41. The width of the slotted hole is greater than the diameter of the axle of the guide wheel 32 so that the guide wheel frame 31 can swing about the elastic block 42 relative to the bogie frame 10.

[0031] In one specific implementation, the elongated hole 111 is an arc-shaped hole. The center of the arc-shaped hole is the center of the swing of the guide wheel frame 31 relative to the bogie frame 10.

[0032] Specifically, when the side of the track is uneven or bends, the side of the track will exert a force on one of the two guide wheels 32, causing the guide wheel frame to swing around the elastic block 42 relative to the bogie frame 10, so that the other of the two guide wheels 32 is close to the track and always in contact with the track.

[0033] In one specific implementation, there are two guide components 30 located on the same side of the track. The two guide components 30 are arranged along the height direction.

[0034] In one specific embodiment, the follow-up bogie 100 for rail vehicles further includes several reinforcing members 50. The reinforcing members 50 are used to increase the strength of the bogie frame 10. Multiple through holes 12 are formed on both sides of the bogie frame 10. The reinforcing members 50 are installed to the bogie frame 10 through the through holes 12.

[0035] In one specific implementation, both ends of the bogie frame 10 have connecting portions 13. The connecting portions 13 are connected to the outside. The follow-up bogie 100 for rail vehicles also includes a shaft 60 and side bearings 70. The connecting portions 13 are rotatably mounted to the shaft 60. The side bearings 70 are disposed at both ends of the connecting portions 13. Specifically, the side bearings 70 are flexible side bearings, which can play a good role in shock absorption and load bearing during the movement of the rail vehicle.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A bogie for a rail vehicle, characterized in that The bogie frame, a walking wheel set, a pair of guide assemblies, and a mounting and adjusting assembly for mounting the guide assemblies to the bogie frame are included. The walking wheel set includes a plurality of walking wheels arranged along the track extension direction on the upper surface of the track, and the walking wheels are rotatably mounted to the bogie frame. The pair of guide assemblies are symmetrically arranged on both sides of the track. The guide assembly includes a guide wheel frame and two guide wheels for abutting against the side surface of the track. The mounting and adjusting assembly includes an adjusting bolt, an elastic block, and a hand wheel. The two guide wheels are rotatably mounted to the two ends of the guide wheel frame, respectively. The adjusting bolt passes through the middle part of the guide wheel frame. The elastic block is arranged between the bogie frame and the guide wheel frame. The adjusting bolt passes through the bogie frame, the elastic block, and the guide wheel frame to form a threaded connection with the hand wheel. The bogie frame, the elastic block, and the guide wheel frame are clamped by rotating the hand wheel. The middle part of the elastic block is raised towards one side of the guide wheel frame and abuts against the guide wheel frame.

2. The bogie according to claim 1, wherein the bogie frame is formed with two positioning plates, the guide wheel frame is arranged between the two positioning plates, the positioning plates are formed with long strip-shaped holes for limiting and guiding the movement of the guide wheels relative to the bogie frame, and the wheel shafts of the guide wheels are movably arranged in the long strip-shaped holes.

3. The bogie according to claim 2, wherein the wheel shafts of the guide wheels and the guide wheel frame are connected through bearings, and the wheel shafts of the guide wheels are fastening bolts for locking the axial positions of the guide wheels and the guide wheel frame relative to the bogie frame through bolt connection.

4. The bogie according to claim 2, wherein the long strip-shaped holes are waist-shaped holes, the length of the waist-shaped holes extends along the axial direction of the adjusting bolt, and the width of the waist-shaped holes is greater than the diameter of the wheel shafts of the guide wheels to enable the guide wheel frame to swing relative to the bogie frame around the elastic block.

5. The bogie according to claim 2, wherein the long strip-shaped holes are arc-shaped holes, and the center of the arc-shaped holes is the center of the swing of the guide wheel frame relative to the bogie frame.

6. The bogie according to claim 1, wherein the number of the guide assemblies on the same side of the track is two, and the two guide assemblies are arranged along the height direction.

7. The bogie according to claim 1, further comprising a plurality of reinforcing members for increasing the strength of the bogie frame, the two sides of the bogie frame are respectively formed with a plurality of through holes, and the reinforcing members are mounted to the bogie frame through the through holes. ​ ​ ​ ​ ​ ​ ​ 8. The bogie according to claim 1, characterized in that, both ends of the bogie frame are formed with connecting parts for interfacing with the outside; the bogie for a railway vehicle further comprises a rotating shaft and side bearings; the connecting parts are rotatably installed to the rotating shaft; and the side bearings are arranged at both ends of the connecting parts.

Images