Bogie with independent wheels and self-guiding function and railway vehicle

Abstract

The invention discloses a bogie with independent wheels and a self-guiding function and a railway vehicle, and belongs to the technical field of rail transit. The bogie comprises independent wheels, an elastic adapter, a wheel connecting beam assembly, a telescopic rod assembly, a self-adaptive guider, a bearing frame assembly and an elastic side bearing assembly. The elastic bearing saddles are installed on the two sides of the independent wheels, the two sides of the wheel connecting beam assemblies are connected with the independent wheels through the elastic bearing saddles, the two wheel connecting beam assemblies are located on the two sides of the self-adaptive guider, and the ends, on the same side, of the two wheel connecting beam assemblies are connected through the telescopic rod assemblies. The bearing frame assembly is fixed on the two wheel connecting beam assemblies, and the elastic side bearing assembly is fixed on a side bearing mounting seat of the bearing frame assembly through a bolt. The weight of the bogie is reduced, the self-guiding function is achieved, wheel abrasion is reduced, the operation stability of the bogie is improved, and application and maintenance of the bogie are facilitated.

Description

Technical Field

[0001] The present invention belongs to the technical field of rail transportation and electromagnetic drive related technologies, and specifically relates to a bogie and a railway vehicle with independent wheels and self-steering functions. Background Art

[0002] With the continuous development of railway vehicle technology, reducing vehicle weight and improving vehicle wheel-rail guidance have become new problems that need to be solved urgently. Existing bogies generally have a large weight and insufficient self-guiding ability. During operation, the wheels and tracks are prone to wear, which not only increases maintenance costs, but also restricts the improvement of transportation efficiency. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a bogie and a railway vehicle with independent wheels and self-steering function, which overcome the problems of heavy dead weight and severe wheel wear in the prior art.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows: A bogie with independent wheels and self-steering function, comprising independent wheels, an elastic load-bearing saddle, a wheel connecting beam component, a telescopic rod component, an adaptive guide, a load-bearing frame component and an elastic side bearing component; The elastic load-bearing saddles are installed on both sides of the independent wheel, and the two sides of the wheel connecting beam assembly are connected to the independent wheel through the elastic load-bearing saddles. The two wheel connecting beam assemblies are located on both sides of the adaptive guide, and the ends of the two wheel connecting beam assemblies on the same side are connected by a telescopic rod assembly; The bearing frame component is fixed on two wheel connecting beam components, and the elastic side bearing component is fixed on the side bearing mounting seat of the bearing frame component by bolts.

[0005] Furthermore, the independent wheel includes a wheel, an axle, a bearing and a rib, the wheel is sleeved on the bearing, the bearing is sleeved on the axle, the wheel can rotate relative to the axle, the bearing is installed at the center of the wheel, the axle cooperates with the inner ring of the bearing, and the ribs are installed on both sides of the axle.

[0006] Furthermore, the elastic load-bearing saddle is installed between the independent wheel and the wheel connecting beam, and the elastic load-bearing saddle is formed by bonding and curing the load-bearing saddle and the elastomer.

[0007] Furthermore, the wheel connecting beam body composed of the wheel connecting beam is generally in the shape of a rectangular parallelepiped, with a mounting hole and a wear-resistant pad in the middle, and rubber springs on both sides of the mounting hole; two left and right front mounting arms are provided on one side of the long end surface of the wheel connecting beam body, and side shafts are provided on both sides of the short end surface, the wear-resistant pad and the rubber spring are used for connection with the load-bearing frame, the front mounting arm is used for connection with the elastic load-bearing saddle, and the side shaft is used for connection with the telescopic rod.

[0008] Furthermore, the adaptive guide includes a V-shaped bracket, a connecting seat and an elastic hinge combination. The V-shaped tips of the two V-shaped brackets are opposite to each other, and the connecting seat is used to assemble the V-shaped tips relative to each other through the elastic hinge. The open end of each V-shaped bracket is welded to the wheel connecting beam, thereby producing a self-steering function.

[0009] Furthermore, the bearing frame is composed of two groups of carbon fiber leaf springs connecting two cross beams and a bolster located between the two cross beams and parallel to the two cross beams to form a sun-shaped frame; The connection between the carrier component and the wheel connecting beam component is completed by plugging the middle pin under the cross beam with the wear-resistant bushing of the wheel connecting beam component and connecting the spring supports on both sides of the cross beam with the rubber springs of the wheel connecting beam component. The carbon fiber leaf spring is connected to the two cross beams through a leaf spring mounting seat and fixing bolts. The carbon fiber leaf spring passes through and is fixed in the mounting seats on both sides of the bolster beam. The side bearing mounting seats are welded to both sides of the bolster beam.

[0010] On the other hand, the present invention further provides a railway vehicle, wherein the railway vehicle is equipped with the above-mentioned bogie.

[0011] The beneficial effects of the present invention are: The present invention adopts independent wheels as the wheel pair of the bogie, and adopts a wheel connecting beam and an adaptive guide to connect the independent wheels, so that the bogie can reduce the weight and have a self-steering function, reduce wheel wear, improve the running stability of the bogie, and facilitate the use and maintenance of the bogie. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a front view of a bogie structure with independent wheels and self-steering function according to the present invention; Figure 2 A top view of a bogie structure with independent wheels and self-steering function according to the present invention; Figure 3 It is a schematic diagram of the structure composed of independent wheels; Figure 4 It is a schematic diagram of the structure composed of a wheel connecting beam; Figure 5 It is a structural schematic diagram of the bearing frame; Figure 6It is a schematic diagram of the structure composed of telescopic rods; Figure 7 It is a structural schematic diagram of the elastic side bearing; Figure 8 It is a structural schematic diagram of the elastic load-bearing saddle; Fig. 9 Schematic diagram of the structure of the adaptive guide.

[0013] : 1. independent wheel component; 2. wheel connecting beam component; 3. load-bearing frame component; 4. telescopic rod component; 5. elastic side bearing component; 6. elastic load-bearing saddle; 7. adaptive guide; 11. axle; 12. wheel; 13. bearing; 14. flange; 21. wheel connecting beam body; 22. wear-resistant lining; 23. rubber spring; 24. front mounting arm; 25. side joint; 31. carbon fiber leaf spring; 32. cross beam; 33. middle pin; 34. spring support; 35. support seat; 36. pillow beam; 37. side bearing mounting seat; 41. external cylinder; 42. long spring; 43. internal cylinder; 51. external support; 52. side bearing body; 61. load-bearing saddle; 62. elastic body; 71. V-shaped bracket; 72. connecting seat; 73. elastic hinge. DETAILED DESCRIPTION

[0014] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0015] The present invention provides a bogie with independent wheels and self-steering function, such as Figure 1 The front view of the bogie is shown. Figure 2 The figure shows a top view of a bogie, which includes an independent wheel assembly 1, a wheel connecting beam assembly 2, a bearing frame assembly 3, a telescopic rod assembly 4, an elastic side bearing assembly 5, an elastic bearing saddle 6, and an adaptive guide 7. After each independent wheel assembly 1 is respectively installed with the elastic bearing saddle 6, it is assembled to the two ends of the wheel connecting beam assembly 2. The two wheel connecting beam assemblies 2 are distributed perpendicular to the adaptive guide 7 and form an I-shaped structure with the adaptive guide 7. Every two wheel connecting beam assemblies 2 are connected by two telescopic rod assemblies 4, and the telescopic rod assemblies 4 provide a certain preload force to keep the two wheel connecting beam assemblies 2 parallel; the bearing frame assembly 3 is fixed to the upper surface of the wheel connecting beam assembly 2 for bearing the vehicle body load; the elastic side bearing assembly 5 is fixed to the side bearing mounting seat 37 by bolts.

[0016] like Figure 3As shown, the independent wheel assembly 1 includes an axle 11, a wheel 12, a bearing 13 and a flange 14. The wheel 12 is sleeved on the axle 11 and can rotate relative to the axle 11. The bearing 13 is installed at the center of the wheel 12, and the axle 11 matches the inner ring of the bearing 13. The flange 14 is installed on both sides of the axle to prevent the elastic load-bearing saddle 6, which is also assembled between the bearing 13 and the flange 14, from falling off.

[0017] like Figure 4 As shown, the wheel connecting beam body 21 of the wheel connecting beam assembly 2 is in the shape of a rectangular parallelepiped as a whole, with a mounting hole and a wear-resistant liner 22 in the middle, and rubber springs 23 are installed in the grooves on both sides of the mounting hole; two left and right front mounting arms 24 are provided on one side of the long end face of the wheel connecting beam body 21, and side joints 25 are provided on both sides of the short end face. The wear-resistant liner 22 and the rubber spring 23 are used for connecting with the bearing frame assembly 3, the front mounting arm 24 is used for connecting with the elastic bearing saddle 6, and the side joints 25 are used for connecting with the telescopic rod assembly 4.

[0018] like Figure 5 As shown, the bearing frame component 3 is a spherical frame structure, which is composed of a carbon fiber leaf spring 31, a cross beam 32, a middle pin 33, a spring support 34, a leaf spring mounting seat 35, a bolster 36 and a side bearing mounting seat 37. There is a middle pin 33 in the middle of the cross beam 32, and spring supports 34 on both sides. The bearing frame component 3 relies on two groups of carbon fiber leaf springs 31 to connect the two cross beams 32 and the bolster 36 located between the two cross beams 32 and parallel to them to form a spherical frame, and the carbon fiber leaf spring 31 assumes the functions of vertical suspension and vibration reduction. The bolster 36 in the middle of the bearing frame component 3 is used to install the elastic side bearing component 5 and bear the body load. The body is installed and matched with the bearing frame component 3 through the bolster 36, and the carbon fiber leaf springs 31 on both sides provide corresponding deflection and vibration reduction functions for the body load. The connection between the carrier assembly 3 and the wheel connecting beam assembly 2 is completed by plugging the middle pin 33 with the wear-resistant bushing 22 of the wheel connecting beam assembly 2 and connecting the spring support 34 with the rubber spring 23 of the wheel connecting beam assembly 2. The carbon fiber leaf spring 31 is connected to the two cross beams 32 through the leaf spring support seat 35 and the fixing bolts, and the connection between the bolster 36 and the carbon fiber leaf spring 31 is achieved through the mounting seats on both sides of the bolster 36: the carbon fiber leaf spring 31 passes through and is fixed in the mounting seats on both sides of the bolster 36. The side bearing mounting seats 37 are welded to both sides of the bolster 36 for connecting with the elastic side bearing assembly 5.

[0019] like Figure 6 As shown, the telescopic rod assembly 4 is composed of an outer tube 41, a long spring 42 and an inner tube 43, the outer tube 41 houses the inner tube 43, the inner tube 43 houses the long spring 42, and the telescopic rod assembly 4 is used to horizontally connect the two wheel connecting beam assemblies 2.

[0020] like Figure 7 As shown, the elastic side bearing assembly 5 is composed of an outer support 51 and a side bearing body 52. ​​The elastic side bearing assembly 5 is mounted on the side bearing mounting seat 37 by bolts.

[0021] like Figure 8 As shown, the elastic bearing saddle 6 is composed of a bearing saddle 61 and an elastic body 62 bonded together, which can buffer the vertical and lateral vibrations generated between the bogie and the track and optimize the running performance.

[0022] like Fig. 9 As shown, the adaptive guide 7 is composed of two V-shaped brackets 71, a connecting seat 72 and an elastic hinge 73. The V-shaped bracket 71 is welded to the middle position of the tail of the wheel connecting beam component 2. The V-shapes of the two V-shaped brackets 71 are opposite to each other. The connecting seat 72 passes through the elastic hinge 73 to assemble the opposite parts of the V-shapes, so that the two wheel connecting beam components 2 are hingedly associated. The open end of the V-shaped bracket 71 is welded to the wheel connecting beam component 2, thereby generating a self-steering function, which can make the wheel connecting beam component 2 approach or tend to the line radius position when passing through a curved track, so as to reduce wheel-rail wear and extend the service life.

[0023] The present invention also provides a railway vehicle equipped with the above-mentioned bogie, that is, the railway vehicle is equipped with an independent wheel bogie with a self-steering function and light weight.

[0024] The present invention uses an independently rotating wheel as the wheel axle device of the bogie, and uses a carbon fiber leaf spring 31 as the secondary suspension damping system of the bogie, which effectively reduces the deadweight of the bogie and also reduces the overall height of the bogie, which is conducive to increasing the effective load of the vehicle and expanding the loading volume. The present invention also uses an adaptive guide 7 as a guide and positioning device for the bogie to achieve radial positioning of the wheel on the curve, reduce wheel-rail wear, reduce the maintenance cost of the bogie, and have a good effect on the use and maintenance of the bogie.

[0025] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A bogie with independent wheels and self-steering function, characterized in that: It includes independent wheels, elastic load-bearing saddles, wheel connecting beam components, telescopic rod components, adaptive guides, load-bearing frames and elastic side bearing components; The elastic load-bearing saddles are installed on both sides of the independent wheel, and the two sides of the wheel connecting beam assembly are connected to the independent wheel through the elastic load-bearing saddles. The two wheel connecting beam assemblies are located on both sides of the adaptive guide, and the ends of the two wheel connecting beam assemblies on the same side are connected by a telescopic rod assembly; The bearing frame component is fixed on two wheel connecting beam components, and the elastic side bearing component is fixed on the side bearing mounting seat of the bearing frame component by bolts.

2. A bogie with independent wheels and self-steering function according to claim 1, characterized in that: The independent wheel comprises a wheel, an axle, a bearing and a rib, the wheel is sleeved on the bearing, the bearing is sleeved on the axle, the wheel can rotate relative to the axle, a bearing is installed at the center of the wheel, the axle matches the inner ring of the bearing, and the ribs are installed on both sides of the axle.

3. A bogie with independent wheels and self-steering function according to claim 1, characterized in that: The elastic load-bearing saddle is installed between the independent wheel and the wheel connecting beam, and the elastic load-bearing saddle is formed by bonding and curing the load-bearing saddle and the elastomer.

4. A bogie with independent wheels and self-steering function according to claim 1, characterized in that: The wheel connecting beam body composed of the wheel connecting beam is in the shape of a rectangular parallelepiped as a whole, with a mounting hole and a wear-resistant pad in the middle, and rubber springs on both sides of the mounting hole; two left and right front mounting arms are arranged on one side of the long end face of the wheel connecting beam body, and side shafts are arranged on both sides of the short end face, the wear-resistant pad and the rubber spring are used for connection with the load-bearing frame, the front mounting arm is used for connection with the elastic load-bearing saddle, and the side shaft is used for connection with the telescopic rod.

5. The bogie with independent wheels and self-steering function according to claim 1, characterized in that: The adaptive guide includes a V-shaped bracket, a connecting seat and an elastic hinge combination. The V-shaped tips of the two V-shaped brackets are opposite to each other, and the connecting seat passes through the elastic hinge to assemble the opposite parts of the V-shaped tips. The open end of each V-shaped bracket is welded to the wheel connecting beam to produce a self-steering function.

6. A bogie with independent wheels and self-steering function according to claim 1, characterized in that: The bearing frame is composed of two groups of carbon fiber leaf springs connecting two cross beams and a pillow beam located between the two cross beams and parallel to the two cross beams to form a sun-shaped frame; The connection between the carrier component and the wheel connecting beam component is completed by plugging the middle pin under the cross beam with the wear-resistant bushing of the wheel connecting beam component and connecting the spring supports on both sides of the cross beam with the rubber springs of the wheel connecting beam component. The carbon fiber leaf spring is connected to the two cross beams through a leaf spring mounting seat and fixing bolts. The carbon fiber leaf spring passes through and is fixed in the mounting seats on both sides of the bolster beam. The side bearing mounting seats are welded to both sides of the bolster beam.

7. A railway vehicle, characterized in that: The railway vehicle is equipped with a bogie with independent wheels and self-steering function as described in any one of claims 1-6.

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