A wheelset running structure capable of adjusting wheel spacing

Abstract

The present invention provides a wheelset running structure with adjustable wheel spacing, which relates to the technical field of track maintenance equipment and solves the problem that existing guide wheels, when passing through the harmful space at a fixed switch, will collide with the switch tip or deviate from the predetermined direction of the track, resulting in derailment and inability to pass through the switch at high speed. The device includes a wheel spacing telescopic support device, a guide wheel, and a guide wheel guard plate pull rod mechanism. The wheel spacing telescopic support device is arranged in the middle of the vehicle body, and the guide wheel and the guide wheel guard plate pull rod mechanism are symmetrically arranged in pairs at both ends of the vehicle body. The guide wheel is rotatably connected to the vehicle body, one end of the guide wheel guard plate pull rod mechanism is connected to the wheel spacing telescopic support device, and the other end of the guide wheel guard plate pull rod mechanism is connected to the vehicle body; the wheel spacing telescopic support device controls the lateral spacing of the guide wheels within the working range, and the guide wheel guard plate pull rod mechanism acts as a limiter, thereby limiting the lateral extension position of the guide wheel to prevent derailment or collision with the tip of the switch center rail.

Description

Technical Field

[0001] The present invention relates to the technical field of track maintenance equipment, and in particular to a wheelset running structure capable of adjusting wheel spacing. Background Art

[0002] The traditional railway wheel-rail structure adopts a rigid wheelset. When the wheel moves forward on the rail, the wheelset deviates from the center line of the track, and the rolling circle radius of the contact point between the left and right wheel treads and the top surface of the rail will be different. Under pure rolling conditions, the wheel on the larger radius side will rotate horizontally around the wheel on the smaller radius side, so that the wheelset returns to the center line of the line. The restoring motion will cause the wheelset to swing left and right and move laterally, shake its head, and form a periodic serpentine motion as the operating device moves forward. It cannot guarantee that the operating mechanism fixed under its car body can have a stable grinding effect on the rail. The operating mechanism and car body will produce lateral movement and shaking motion along with the serpentine motion, which is not conducive to the fixation of the lateral coordinates of the operating device relative to the rail.

[0003] At the same time, due to the "harmful space" at the fixed rail frog, the existing guide wheel pair structure, when passing through the frog point rail, will be affected by the serpentine motion and the discontinuity of the harmful space between the frog point rail and the wing rail. This will cause the guide wheel passing through the "harmful space" to collide with the frog tip, or deviate from the established track direction and derail. This prevents the working device from passing the switch structure at high speed, and often requires the working device to be raised, passed through the switch, and then lowered to continue working. The repeated lifting and lowering of the working device will seriously affect the construction time and efficiency. Summary of the Invention

[0004] The present invention aims to provide a wheelset running structure with adjustable wheel spacing to address the problem of existing guide wheels colliding with the frog tip or deviating from the intended track direction when passing through the unsuitable space at fixed frogs, resulting in derailment and the inability to pass through switches at high speeds. The various technical effects achieved by the preferred technical solution among the various technical solutions provided by the present invention are detailed below.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] The present invention provides a wheelset running structure with adjustable wheel spacing, comprising a wheel spacing telescopic support device, a guide wheel and a guide wheel guard plate pull rod mechanism, wherein the wheel spacing telescopic support device is arranged in the middle of the vehicle body, and the wheel spacing telescopic support device changes the spacing distance between the guide wheels on both sides in the lateral direction by telescoping, the guide wheels and the guide wheel guard plate pull rod mechanism are symmetrically arranged in pairs at both ends of the vehicle body, the guide wheels are connected to the vehicle body, one end of the guide wheel guard plate pull rod mechanism is connected to the wheel spacing telescopic support device, and the other end of the guide wheel guard plate pull rod mechanism is connected to the vehicle body.

[0007] Preferably, the wheel spacing telescopic support device includes an outer telescopic drawer, an inner telescopic drawer and a cylinder body, one end of the outer telescopic drawer is connected to the rotation of the left vehicle body, one end of the inner telescopic drawer is connected to the rotation of the right vehicle body, the inner telescopic drawer is slidably arranged in the outer telescopic drawer, one end of the cylinder body is connected to the inner telescopic drawer, and the other end of the cylinder body is connected to the outer telescopic drawer, the guide wheel guard plate pull rod mechanism on the left is connected to the inner telescopic drawer on the right, realizing the restraint effect on the right vehicle body and the guide wheel guard plate pull rod mechanism on the right, and the guide wheel guard plate pull rod mechanism on the right is connected to the outer telescopic drawer on the left, realizing the restraint effect on the left vehicle body and the guide wheel guard plate pull rod mechanism on the left.

[0008] Preferably, a wedge-shaped stopper is provided between the outer telescopic drawer and the inner telescopic drawer, a stop portion cooperating with the wedge-shaped stopper is provided on the inner side of the outer telescopic drawer, and the side of the wedge-shaped stopper cooperating with the inner telescopic drawer is an inclined surface gradually inclined to the left from top to bottom, an adjusting slot is provided on the wedge-shaped stopper, and an adjusting nut and screw group is provided on the inner telescopic drawer, the wedge-shaped stopper is slidably connected to the adjusting nut and screw group through the adjusting slot, and the wedge-shaped stopper is tightened by the adjusting nut and screw group to realize the positioning of the wedge-shaped stopper, thereby realizing the adjustment of the initial length of the wheel spacing telescopic support device.

[0009] Preferably, the guide wheel guard plate pull rod mechanism includes a guide wheel guard plate and an adjusting pull rod, the upper end of the guide wheel guard plate is rotatably connected to the vehicle body, the lower end of the guide wheel guard plate is rotatably connected to the adjusting pull rod, the left end of the adjusting pull rod away from the guide wheel guard plate is rotatably connected to the inner telescopic drawer, and the right end of the adjusting pull rod away from the guide wheel guard plate is rotatably connected to the outer telescopic drawer.

[0010] Preferably, a rim is provided on the side of the guide wheel close to the vehicle body.

[0011] Preferably, a limiting bending end is provided at the bottom of the guide wheel guard plate, and the limiting bending end is parallel to the inner end surface of the guide wheel close to the vehicle body side. The limiting bending end extends downward to the lowest point of the wheel rim to protect the inner side of the guide wheel from contacting the track.

[0012] Preferably, a sliding connection groove is provided on the outer telescopic drawer, one end of the cylinder body is rotatably connected to the outer telescopic drawer through the sliding connection groove, and the other end of the cylinder body is connected to the inner telescopic drawer, and the relative left and right movement between the outer telescopic drawer and the inner telescopic drawer is achieved by the extension and contraction of the cylinder body, the adjustment rod on the left is rotatably connected to the inner telescopic drawer on the right, and the adjustment rod on the right is rotatably connected to the outer telescopic drawer on the left, and the outer telescopic drawer is also provided with an opening corresponding to the connection between the inner telescopic drawer and the adjustment rod on the left, so as to facilitate the rotational connection between the inner telescopic drawer and the adjustment rod on the left.

[0013] Preferably, the outer telescopic drawer and the inner telescopic drawer are both rotatably connected to the vehicle body via a pin shaft.

[0014] Preferably, the wheel spacing telescopic support device and the adjusting rod, the guide wheel guard plate and the adjusting rod, and the guide wheel guard plate and the vehicle body are all rotatably connected through hinges.

[0015] Preferably, the adjusting rod includes a locking nut and an adjusting rod, the adjusting rod is threadedly connected to both ends of the locking nut, and the adjusting rod is rotationally connected to the guide wheel guard plate and the spacing telescopic support device respectively.

[0016] The present invention provides a wheelset running structure with adjustable wheel spacing. The lateral spacing of the guide wheels is controlled within a working range by a wheel spacing telescopic support device, so that the guide wheels travel at high speed on the surface of the base rail. The guide wheels are engaged with the base rail, and the wheel spacing telescopic support device rotates adaptively relative to the vehicle body on both sides. The guide wheels on both sides of the bottom of the vehicle body roll cooperatively along the tracks of the two base rails respectively, so that the guide wheels do not affect each other due to different rotation radius during turning, thereby avoiding the generation of serpentine motion and lateral offset motion. At the same time, when the vehicle body passes through the "harmful space" of the fixed rail frog, due to the gap between the wing rail and the frog heart rail at the frog, the vehicle body will tilt toward the gap on one side of the wing rail and the frog heart rail when passing through. At this time, the lower end of the guide wheel guard plate pull rod mechanism on the other side rail acts on the side of the guard rail close to the base rail to play a limiting role, thereby limiting the lateral limit extension position of the guide wheel on the side of the wing rail and the frog heart rail, thereby avoiding derailment or collision with the tip of the frog heart rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic structural diagram of a wheelset running structure with adjustable wheel spacing provided by an embodiment of the present invention;

[0019] Figure 2 This is a schematic top view of a wheelset running structure with adjustable wheel spacing provided by an embodiment of the present invention;

[0020] Figure 3 This is a schematic structural diagram of a wheelset running structure with adjustable wheel spacing provided by an embodiment of the present invention running on a stock rail in a normal state;

[0021] Figure 4 This is a schematic diagram of the working state of a wheelset running structure with adjustable wheel spacing provided by an embodiment of the present invention before entering a harmful space of a turnout;

[0022] Figure 5 This is a schematic diagram of the operation of a wheelset running structure with adjustable wheel spacing provided by an embodiment of the present invention in state two when passing through a hazardous space of a turnout;

[0023] Figure 6 This is a schematic diagram of the working state of a wheelset running structure with adjustable wheel spacing provided by an embodiment of the present invention after passing through a harmful space of a turnout;

[0024] Figure 7 This is a schematic top view of a wheelset running structure with adjustable wheel spacing provided by an embodiment of the present invention, showing the structure passing through a harmful space process.

[0025] In the figure, 1. telescopic support device for wheel spacing; 11. Outer telescopic drawer; 111. Sliding connection groove; 12. Inner telescopic drawer; 13. Cylinder body; 14. Wedge-shaped stopper; 15. Adjusting slide groove; 16. Adjusting nut and screw assembly; 2. Guide wheel; 21. Wheel rim; 3. Guide wheel guard plate pull rod mechanism; 31. Guide wheel guard plate; 32. Adjusting pull rod; 321. Locking nut; 322. Adjusting rod; 33. Limiting bending end; 4. Rail; 41. Base rail; 42. Guard rail; 43. Wing rail; 44. Frog heart rail; 45. Guide curve rail; A. State 1; B. State 2; C. State 3; D. Harmful space. DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0027] The following embodiments are described with reference to the accompanying drawings. The embodiments described below do not limit the invention as set forth in the claims. Furthermore, the entire contents of the configurations shown in the following embodiments are not necessarily required to serve as solutions to the invention as set forth in the claims.

[0028] The following is attached with the instruction manual Figure 1-7 A wheelset running structure capable of adjusting the wheel spacing in this embodiment is described in detail.

[0029] refer to Figure 1-7 This embodiment provides a wheelset running structure with adjustable wheel spacing, including a wheel spacing telescopic support device 1, a guide wheel 2 and a guide wheel guard plate pull rod mechanism 3. The wheel spacing telescopic support device 1 is arranged in the middle of the vehicle body. The wheel spacing telescopic support device 1 changes the distance between the guide wheels 2 on both sides in the lateral direction by telescoping. The guide wheels 2 and the guide wheel guard plate pull rod mechanism 3 are symmetrically arranged in pairs at both ends of the vehicle body. The guide wheels 2 are connected to the vehicle body, one end of the guide wheel guard plate pull rod mechanism 3 is connected to the wheel spacing telescopic support device 1, and the other end of the guide wheel guard plate pull rod mechanism 3 is connected to the vehicle body.

[0030] The guide wheels 2 roll on the surface of the base rail 41 of the rail 4. At this time, the lateral spacing of the guide wheels 2 is controlled within the working range by the wheel spacing telescopic support device 1, so that the guide wheels 2 can run at high speed on the surface of the base rail 41. The guide wheels 2 are matched with the base rail 41, and the wheel spacing telescopic support device is adaptively rotated relative to the vehicle body on both sides. The guide wheels 2 on both sides of the bottom of the vehicle body roll along the tracks of the two base rails 41 respectively, so that the guide wheels 2 do not affect each other due to the different rotation radius when turning, avoiding serpentine motion and lateral offset motion. At the same time, when the vehicle body passes through the "harmful space" of the fixed-type frog of the rail 4, due to the gap between the wing rail 43 and the frog heart rail 44 at the frog, the vehicle body will tilt toward the gap on one side of the wing rail 43 and the frog heart rail 44 when passing through. At this time, the lower end of the guide wheel guard plate pull rod mechanism 3 at the other side rail 4 acts on the side of the guard rail 42 close to the stock rail 41 to limit the lateral extension position of the guide wheel 2 on the side of the wing rail 43 and the frog heart rail 44, thereby avoiding derailment or collision with the tip of the frog heart rail 44.

[0031] refer to Figure 1-7As an optional embodiment, the wheel spacing telescopic support device 1 includes an outer telescopic drawer 11, an inner telescopic drawer 12 and a cylinder body 13. One end of the outer telescopic drawer 11 is connected to the rotation of the left vehicle body, and one end of the inner telescopic drawer 12 is connected to the rotation of the right vehicle body. The inner telescopic drawer 12 is slidably arranged in the outer telescopic drawer 11, one end of the cylinder body 13 is connected to the inner telescopic drawer 12, and the other end of the cylinder body 13 is connected to the outer telescopic drawer 11. The left guide wheel guard plate pull rod mechanism 3 is connected to the right inner telescopic drawer 12 to realize the constraint effect on the right vehicle body and the right guide wheel guard plate pull rod mechanism 3. The right guide wheel guard plate pull rod mechanism 3 is connected to the left outer telescopic drawer 11 to realize the constraint effect on the left vehicle body and the left guide wheel guard plate pull rod mechanism 3.

[0032] As an optional embodiment, the outer telescopic drawer 11 and the inner telescopic drawer 12 are both rotatably connected to the vehicle body via a pin shaft.

[0033] The outer telescopic drawer 11 and the inner telescopic drawer 12 are both connected to the car body through a pin shaft, and the guide wheel 2 is matched on the basic rail 41. When the guide wheel 2 passes through a turn, the outer telescopic drawer 11 and the inner telescopic drawer 12 are adaptively rotated relative to the car body through the pin shaft, so that the guide wheels 2 roll independently along the basic rail 41 without affecting each other, avoiding the generation of serpentine motion and lateral offset motion; the inner telescopic drawer 12 is driven by the cylinder body 13 to perform relative sliding motion in the outer telescopic drawer 11, thereby changing the overall length of the wheel spacing telescopic support device 1 and realizing the change of the lateral spacing of the guide wheels 2. The guide wheel guard plate pull rod machines 3 on both sides of the car body are respectively connected to the outer telescopic drawer 11 and the inner telescopic drawer 12, so that the spacing changes accordingly with the extension and contraction of the spacing telescopic support device 1, ensuring that the guide wheel guard plate pull rod machine 3 can act on the guard rail 42 of the rail 4 to achieve limiting when passing through the "harmful space".

[0034] It should be noted that the cylinder body 13 can be a driving cylinder or a hydraulic cylinder.

[0035] refer to Figure 1 As an optional embodiment, a wedge-shaped stopper 14 is provided between the outer telescopic drawer 11 and the inner telescopic drawer 12, and a stop portion cooperating with the wedge-shaped stopper 14 is provided on the inner side of the outer telescopic drawer 11. The side of the wedge-shaped stopper 14 cooperating with the inner telescopic drawer 12 is an inclined surface gradually inclined to the left from top to bottom, and an adjusting slot 15 is provided on the wedge-shaped stopper 14. An adjusting nut screw group 16 is provided on the inner telescopic drawer 12. The wedge stopper 14 is slidably connected with the adjusting nut screw group 16 through the adjusting slot 15, and the wedge stopper 14 is tightened by the adjusting nut screw group 16 to achieve the positioning of the wedge stopper 14, thereby achieving the adjustment of the initial length of the wheel spacing telescopic support device 1.

[0036] When the nut screw assembly 16 is engaged with the lower end of the adjusting slot 15, the nut screw assembly 16 is tightened, and the wedge block 14 moves upward to the highest point. The side of the wedge block 14 that cooperates with the inner telescopic drawer 12 is a slope that gradually narrows from top to bottom, and the inner telescopic drawer 12 cooperates with the slope of the narrower end of the wedge block 14. At this time, the maximum telescopic length of the wheel spacing telescopic support device 1 is minimum. Similarly, when the wedge block 14 slides to the lowest point along the adjusting slot 15, the nut screw assembly 16 is located at the upper end of the slide slot 15, and the inner telescopic drawer 12 cooperates with the slope of the wider end of the wedge block 14, and the maximum telescopic length of the wheel spacing telescopic support device 1 gradually increases to the maximum.

[0037] refer to Figure 1-7 As an optional embodiment, the guide wheel guard plate pull rod mechanism 3 includes a guide wheel guard plate 31 and an adjusting rod 32. The upper end of the guide wheel guard plate 31 is rotatably connected to the vehicle body, and the lower end of the guide wheel guard plate 31 is rotatably connected to the adjusting rod 32. The left end of the adjusting rod 32 away from the guide wheel guard plate 31 is rotatably connected to the inner telescopic drawer 12, and the right end of the adjusting rod 32 away from the guide wheel guard plate 31 is rotatably connected to the outer telescopic drawer 11.

[0038] like Figure 7 As shown, the guide wheel guard plate pull rod mechanism 3 ensures that the guide wheel 2 passes through the harmful space D smoothly and safely. The left guide wheel guard plate 31 is parallel to the guide wheel 2 and maintains a certain small distance. When the vehicle body tilts through the harmful space D, causing the guide wheel 2 to extend outward from the rail 4 beyond the specified size, under the pulling force of the wheel spacing telescopic support device 1 and its own gravity, the guide wheel guard plate 31 on the higher side of the vehicle body tilts and contacts the surface of the guard rail 42. The limiting action of the switch guard rail 42 and the guide wheel guard plate 31 can limit the extreme extension position of the guide wheel 2 on the other side, thereby preventing derailment or collision with the tip of the frog rail 44 at the discontinuity of the harmful space D.

[0039] like Figure 3 As shown, the left and right guide wheels 2 run on the base rail 41, and the wheel flange 21 rolls against the base rail 41 of the rail 4 until the left guide wheel 2 and the guide wheel guard plate 31 enter the limited space formed by the guard rail 42 and the base rail 41.

[0040] like Figure 4-5During the transition from State 1 to State 2, as the guide wheel 2 passes through the turnout structure, the guide wheel 2 in the direction of the frog heart rail 44 and wing rail 43 enters the hazardous space D, with the guide wheel 2 potentially striking the tip of the frog heart rail 44 and entering the other bifurcated wing rail 43. Due to the tension of the adjustment rods 32 on both sides, the guide wheel guard plate 31 on the side of the vehicle body at the higher tilt position is restrained against the surface of the guard rail 42. Simultaneously, the guide wheel 2 and wing rail 41 limit the travel of the guide wheel 2 under the action of the wheel spacing telescopic support device 1, keeping the wheel spacing of the guide wheel 2 within a safe range.

[0041] like Figure 6 In the third state shown, the guide wheels 2 on one side of the frog heart rail 44 and the wing rail 43 pass through the harmful space D smoothly. Under the constraints of the frog heart rail 44 and the wing rail 43, the guide wheels 2 on both sides are respectively fitted with the stock rail 41 and the frog heart rail 44, and then smoothly enter the corresponding running rail track.

[0042] As an optional embodiment, hinges are used to pivotally connect the telescopic spacing support device 1 and the adjustment rod 32, the guide wheel guard plate and the adjustment rod 32, and the guide wheel guard plate 31 to the vehicle body. This forms a linkage mechanism that allows the adjustment rod 32 and guide wheel guard plate 31 to independently rotate under the effects of gravity and tension when the vehicle body tilts or deflects, thereby retaining the guide wheel guard plate 31 on the rail 4 and preventing derailment.

[0043] refer to Figure 1-2 and Figure 7 As an optional embodiment, a rim 21 is provided on the side of the guide wheel 2 close to the vehicle body.

[0044] like Figure 3 As shown, under normal circumstances, the lateral distance between the left and right guide wheels 2 is ensured by the wheel spacing telescopic support device 1 to ensure that the wheel flange 21 is in contact with the basic rail 41 of the rail 4. The wheel flange 21 plays a role of limiting and guiding, avoiding the generation of serpentine motion, thereby avoiding the lateral offset movement of the wheelset relative to the rail.

[0045] By adjusting the stroke of the setting cylinder 13, the normal running state and the working state of the wheelset guide wheel 2 can be set. In the normal running state, the wheel surface 4 of the guide wheel 2 contacts and rolls with the rail surface. When adjusted to the working state, the wheel spacing telescopic support device 1 is extended by the cylinder 13 to make the wheel rim 21 of the guide wheel 2 fit tightly with the rail 4, which can overcome the serpentine motion of the rigid wheelset and reduce the lateral movement and head shaking of the vehicle body relative to the rail 4, which is conducive to the application of the present invention in the running process of railway inspection, maintenance, construction and other operating structures.

[0046] As an optional embodiment, a limited bending end 33 is provided at the bottom of the guide wheel guard plate 31. The limited bending end 33 is parallel to the inner end surface of the guide wheel 2 close to the vehicle body side. The limited bending end 33 extends downward to the lowest point of the wheel rim 21 to protect the inner side of the guide wheel 2 from contacting the track.

[0047] The bent end 33 extends downward into the inner side of the two rails 4 at the switch, so that the bent end 33 fits against the inner wall of the corresponding guard rail 42 for limiting, ensuring that the guide wheel 2 will not derail or collide when passing through the harmful space D.

[0048] refer to Figure 1-7 As an optional embodiment, a sliding connection groove 111 is provided on the outer telescopic drawer 11. One end of the cylinder body 13 is rotatably connected to the outer telescopic drawer 11 through the sliding connection groove 111, and the other end of the cylinder body 13 is connected to the inner telescopic drawer 12. The relative left and right movement between the outer telescopic drawer 11 and the inner telescopic drawer 12 is achieved by telescoping the cylinder body. The left adjusting rod 32 is rotatably connected to the right inner telescopic drawer 12, and the right adjusting rod 32 is rotatably connected to the left outer telescopic drawer 11. The outer telescopic drawer is also provided with an opening corresponding to the connection between the inner telescopic drawer 12 and the left adjusting rod 32, which facilitates the rotatable connection between the inner telescopic drawer 12 and the left adjusting rod 32.

[0049] The inner telescopic drawer 12, the outer telescopic drawer 11 and the cylinder body 13 are connected to each other through the sliding connection groove 111, so that the inner telescopic drawer 12 and the outer telescopic drawer 11 can smoothly extend and contract in the left and right horizontal directions relative to each other, thereby changing the distance between the guide wheels 2. The inner telescopic drawer 12 and the outer telescopic drawer 11 are rotatably connected to the adjustment rods 32 on both sides respectively.

[0050] It should be noted that the rotational connection between the cylinder body 13 and the outer telescopic drawer 11 can be hinged.

[0051] refer to Figure 1-7 As an optional embodiment, the adjusting rod 32 includes a locking nut 321 and an adjusting rod 322. The adjusting rod 322 is threadedly connected to both ends of the locking nut 321. The adjusting rod 322 is rotatably connected to the guide wheel guard plate 31 and the spacing telescopic support device 1 respectively.

[0052] The adjustment and correction of the overall width value of the guide wheel guard plate 31 and the guide wheel 2 can be achieved by loosening the adjustment rod 32 and rotating the adjustment rod 322 relative to the locking nut 321 to adjust the gap between the guide wheel guard plate 31 and the guide wheel 2; by loosening the locking nut 321 and rotating the adjustment rod 322, the axial length of the adjustment rod 322 can be adjusted, thereby adjusting the position of the guide wheel guard plate 31 relative to the guide wheel 2, thereby ensuring the effectiveness of the limit of the guide wheel guard plate pull rod mechanism 3.

[0053] It should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "clockwise," "counterclockwise," and the like used herein to indicate positions or positional relationships based on those shown in the accompanying drawings. These terms are intended only to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0054] It should also be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0055] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A wheelset running structure with adjustable wheel spacing, characterized in that: The invention comprises a wheel spacing telescopic support device (1), a guide wheel (2) and a guide wheel guard plate pull rod mechanism (3), wherein the wheel spacing telescopic support device (1) is arranged in the middle of the vehicle body, and the wheel spacing telescopic support device (1) changes the distance between the guide wheels (2) on both sides in the transverse direction by telescoping, and the guide wheels (2) and the guide wheel guard plate pull rod mechanism (3) are symmetrically arranged in pairs at both ends of the vehicle body, the guide wheels (2) are connected to the vehicle body, one end of the guide wheel guard plate pull rod mechanism (3) is connected to the wheel spacing telescopic support device (1), and the other end of the guide wheel guard plate pull rod mechanism (3) is connected to the vehicle body; The wheel spacing telescopic support device (1) comprises an outer telescopic drawer (11), an inner telescopic drawer (12) and a cylinder (13), one end of the outer telescopic drawer (11) is connected to the rotation of the left vehicle body, one end of the inner telescopic drawer (12) is connected to the rotation of the right vehicle body, the inner telescopic drawer (12) is slidably arranged in the outer telescopic drawer (11), one end of the cylinder (13) is connected to the inner telescopic drawer (12), and the other end of the cylinder (13) is connected to the outer telescopic drawer (11), the left guide wheel guard plate pull rod mechanism (3) is connected to the right inner telescopic drawer (12), realizing a restraining effect on the right vehicle body and the right guide wheel guard plate pull rod mechanism (3), and the right guide wheel guard plate pull rod mechanism (3) is connected to the left outer telescopic drawer (11), realizing a restraining effect on the left vehicle body and the left guide wheel guard plate pull rod mechanism (3); The guide wheel guard plate pull rod mechanism (3) includes a guide wheel guard plate (31) and an adjusting pull rod (32), the upper end of the guide wheel guard plate (31) is rotatably connected to the vehicle body, the lower end of the guide wheel guard plate (31) is rotatably connected to the adjusting pull rod (32), the left end of the adjusting pull rod (32) away from the guide wheel guard plate (31) is rotatably connected to the inner telescopic drawer (12), and the right end of the adjusting pull rod (32) away from the guide wheel guard plate (31) is rotatably connected to the outer telescopic drawer (11); The guide wheel (2) is provided with a wheel rim (21) on a side close to the vehicle body; A limiting bent end (33) is provided at the bottom of the guide wheel guard plate (31), and the limiting bent end (33) is parallel to the inner end surface of the guide wheel (2) close to the vehicle body. The limiting bent end (33) extends downward to the lowest point of the wheel rim (21) to protect the inner side of the guide wheel (2) from contacting the track.

2. The wheelset running structure with adjustable wheel spacing according to claim 1, characterized in that: A wedge-shaped stopper (14) is provided between the outer telescopic drawer (11) and the inner telescopic drawer (12); a stopper portion cooperating with the wedge-shaped stopper (14) is provided on the inner side of the outer telescopic drawer (11); a side of the wedge-shaped stopper (14) cooperating with the inner telescopic drawer (12) is an inclined surface gradually tilted to the left from top to bottom; an adjusting chute (15) is provided on the wedge-shaped stopper (14); an adjusting nut screw group (16) is provided on the inner telescopic drawer (12); the wedge-shaped stopper (14) is slidably connected to the adjusting nut screw group (16) through the adjusting chute (15), and the wedge-shaped stopper (14) is tightened by the adjusting nut screw group (16) to achieve positioning of the wedge-shaped stopper (14), thereby achieving adjustment of the initial length of the wheel spacing telescopic support device (1).

3. The wheelset running structure with adjustable wheel spacing according to claim 1, characterized in that: The outer telescopic drawer (11) is provided with a sliding connection groove (111) running through it, one end of the cylinder body (13) is rotatably connected to the outer telescopic drawer (11) through the sliding connection groove (111), and the other end of the cylinder body (13) is connected to the inner telescopic drawer (12), and the relative left and right movement between the outer telescopic drawer (11) and the inner telescopic drawer (12) is achieved by the extension and contraction of the cylinder body, the adjustment rod (32) on the left is rotatably connected to the inner telescopic drawer (12) on the right, and the adjustment rod (32) on the right is rotatably connected to the outer telescopic drawer (11) on the left, and the outer telescopic drawer is also provided with an opening corresponding to the connection between the inner telescopic drawer (12) and the adjustment rod (32) on the left, so as to facilitate the rotatable connection between the inner telescopic drawer (12) and the adjustment rod (32) on the left.

4. The wheelset running structure with adjustable wheel spacing according to claim 1, characterized in that: The outer telescopic drawer (11) and the inner telescopic drawer (12) are both rotatably connected to the vehicle body via a pin shaft.

5. The wheelset running structure with adjustable wheel spacing according to claim 1, characterized in that: The wheel spacing telescopic support device (1) and the adjusting rod (32), the guide wheel guard plate and the adjusting rod (32), and the guide wheel guard plate (31) and the vehicle body are all rotatably connected via hinges.

6. The wheelset running structure with adjustable wheel spacing according to claim 1, characterized in that: The adjusting rod (32) comprises a locking nut (321) and an adjusting rod (322), wherein the adjusting rod (322) is connected to both ends of the locking nut (321) via threads, and the adjusting rod (322) is rotationally connected to the guide wheel guard plate (31) and the spacing telescopic support device (1), respectively.

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