Electromagnetic track guide

Abstract

The present application relates to a kind of electromagnetic track guiding device, it belongs to the technical field of guiding application of traction shunting equipment, including upper arm body, lower arm body, guide wheel assembly and screw pair subassembly;Vertical sliding cavity is provided in upper arm body, lower arm body is slidably arranged in the sliding cavity with the clearance between the inner wall of sliding cavity of upper arm body, screw pair subassembly is rotatably arranged on upper arm body, lower arm body is fixedly connected with the lower part of screw pair subassembly, screw pair subassembly drives lower arm body to slide displacement in the sliding cavity of upper arm body, lower arm body is fixed with guide wheel assembly, and the distance between guide wheel assembly and the rail head of track bed is adjusted by the up-down sliding displacement of lower arm body;Several adjustment windows are set on the sliding cavity wall of upper arm body, and adjustment plate group is detachably installed in adjustment window, and the up-down sliding gap of lower arm body is adjusted by the pressure of adjustment plate group to lower arm body.Effective control can be carried out to the running accuracy of non-standard track bed running guiding device, and the running connection safety of traction vehicle is satisfied under different running speeds.

Description

TECHNICAL FIELD

[0001] The present application relates to an electromagnetic track guiding device, which belongs to the technical field of guiding application of traction shunting equipment. BACKGROUND

[0002] The traction vehicle currently in use mostly travels on highway and railway standard track lines, and the guiding wheels installed on the traction vehicle roll and walk on the tread of the steel rail, and the guiding wheels adopt rail head side guiding to meet the needs of traction shunting operation of high-speed motor cars, subway vehicles, urban vehicles, intercity motor cars, high-power locomotives and the like. With the development of economy and the progress of science and technology, the non-standard bed running equipment also needs traction and shunting operation. The guiding device is an essential and key device for the running of non-standard bed running equipment, and the pursuit of safe, mature and reliable non-standard bed running guiding device has become the first choice for the design of traction vehicles. The existing mature track guiding device of the traction vehicle is difficult to meet the safety requirements of the traction of non-standard bed running equipment. SUMMARY

[0003] In order to solve the above design problems, the purpose of the present application is to provide an electromagnetic track guiding device to meet the needs of reliability and adaptability of traction vehicle running and traction under non-standard bed working conditions.

[0004] To achieve the above purpose, the technical scheme adopted by the present application is: an electromagnetic track guiding device, comprising an upper arm body, a lower arm body, a guiding wheel assembly and a screw pair assembly; a vertical sliding cavity is arranged in the upper arm body, the lower arm body is gap-fitted and slidingly arranged in the sliding cavity between the inner wall of the sliding cavity of the upper arm body, the screw pair assembly is rotatably arranged on the upper arm body, the lower part of the screw pair assembly is fixedly connected with the lower arm body, the screw pair assembly converts the rotary motion into linear motion, thereby driving the lower arm body to slide up and down in the sliding cavity of the upper arm body, the lower arm body is fixed with the guiding wheel assembly, and the distance between the guiding wheel assembly and the rail head of the track bed is adjusted through the up and down sliding displacement of the lower arm body; a plurality of adjusting windows are formed in the sliding cavity wall of the upper arm body, and an adjusting plate group is detachably installed in the adjusting window, and the up and down sliding gap of the lower arm body is adjusted by pressing the lower arm body through the adjusting plate group.

[0005] Based on the above technical scheme, the electromagnetic track guiding device of the present application is suitable for guiding the track running of the non-standard bed traction vehicle, and is used for the running guiding of the traction and shunting operation of the non-standard bed traction vehicle.

[0006] Further, the screw rod subassembly includes a threaded adjusting screw rod and a nut, the adjusting screw rod is rotatably arranged on the upper arm body, the lower part of the adjusting screw rod extends into the sliding cavity, the nut is fixedly connected with the lower arm body, the adjusting screw rod and the nut are a pair of threaded structures, the adjusting screw rod converts the rotary motion into the linear motion of the nut, drives the lower arm body to slide up and down in the sliding cavity of the upper arm body, and the distance between the upper guide wheel assembly and the lower rail head of the track bed is adjusted through the up-and-down sliding displacement of the lower arm body.

[0007] Further, the adjusting screw rod is arranged on the upper arm body through an adjusting body cover plate, the adjusting body cover plate is connected above the top plate of the upper arm body through a cover plate bolt, the upper part of the adjusting screw rod passes through the mounting through hole of the adjusting body cover plate and the top plate of the upper arm body, the nylon pad, the stop pad and the elastic cylindrical pin are sequentially arranged on the adjusting screw rod below the adjusting body cover plate, and the bearing lower seat, the thrust bearing, the bearing upper seat and the elastic cylindrical pin are sequentially arranged on the adjusting screw rod above the adjusting body cover plate; the nut is fixedly connected with the lower arm body through a plurality of nut connecting screws, and the nut connecting screws are internal hexagonal screws.

[0008] Further, the top of the adjusting screw rod is provided in a quadrilateral structure, a hinge shaft seat is arranged above the upper arm body, a rotation-preventing plate is hingedly connected to the hinge shaft seat through a pin shaft, a limiting through hole that is matched with the quadrilateral structure of the adjusting screw rod is formed in the rotation-preventing plate, and the rotation-preventing plate is buckled onto the adjusting screw rod, so that the rotation of the adjusting screw rod is limited through the limiting through hole.

[0009] Further, the guide wheel assembly includes a guide wheel body and a guide wheel shaft, one end of the guide wheel shaft is assembled into the shaft hole of the guide wheel body, the other end of the guide wheel shaft is fixedly connected with the bottom of the lower arm body through a wheel shaft screw, and the wheel shaft screw is an internal hexagonal screw; the guide wheel shaft and the guide wheel body are rotatably supported through a deep groove ball bearing and a tapered roller bearing, the deep groove ball bearing is axially limited through the stepped shaft of the guide wheel shaft, a positioning sleeve is arranged between the deep groove ball bearing and the tapered roller bearing, the positioning sleeve is sleeved on the guide wheel shaft, and the tapered roller bearing is axially limited through a round nut and a round nut stop washer which are connected to the guide wheel shaft; a guide wheel gland is mounted at the end of the guide wheel body, the guide wheel gland is fixed on the guide wheel body through a gland screw to seal the shaft hole of the guide wheel body, and the gland screw is an internal hexagonal screw.

[0010] Further, the guide wheel body rolls and guides between the rail wall and the lower rail head of the rail.

[0011] Further, the adjusting plate group includes a flange plate and a damping plate, the flange plate is detachably mounted on the upper arm body, and the damping plate is detachably connected with the flange plate; the flange plate is used for assembling the damping plate into the adjusting window to press the lower arm body, and the up-and-down sliding gap between the upper arm body and the lower arm body is changed by replacing the thickness of the damping plate.

[0012] Further, the adjusting plate group includes longitudinal adjusting plate groups and transverse adjusting plate groups; two longitudinal adjusting plate groups are symmetrically installed on opposite sides of the upper arm body, and one longitudinal adjusting plate group is located in the middle of each side surface; four transverse adjusting plate groups are symmetrically installed on the other two opposite side surfaces of the upper arm body, and two transverse adjusting plate groups are arranged on each side surface.

[0013] Further, the sliding cavity wall of the upper arm body is a rectangular column structure, a set of oppositely arranged sliding cavity walls are provided with longitudinal adjusting windows, and the other set of oppositely arranged sliding cavity walls are provided with transverse adjusting windows; the longitudinal adjusting plate group is assembled in the longitudinal adjusting window, the longitudinal adjusting plate group includes a longitudinal flange plate and a longitudinal damping plate, the longitudinal flange plate is fixed on the upper arm body through longitudinal plate hexagonal bolts, the longitudinal flange plate and the longitudinal damping plate are connected and fixed through longitudinal plate countersunk head screws, and the longitudinal damping plate is assembled in the longitudinal adjusting window for pressing the lower arm body; the transverse adjusting plate group is assembled in the transverse adjusting window, the transverse adjusting plate group includes a transverse flange plate and a transverse damping plate, the transverse flange plate is fixed on the upper arm body through transverse plate hexagonal bolts, the transverse flange plate and the transverse damping plate are connected and fixed through transverse plate countersunk head screws, and the transverse damping plate is assembled in the transverse adjusting window for pressing the lower arm body; the longitudinal damping plate and the transverse damping plate are both nylon plates, and the thickness of the longitudinal damping plate and the transverse damping plate is adjusted to change the up-down sliding gap between the upper arm body and the lower arm body.

[0014] Further, the electromagnetic track guiding device further includes a vehicle body symmetrically provided with four rubber tire wheels; the upper arm body, the lower arm body, the guide wheel assembly and the screw rod pair assembly constitute a guiding mechanism, the guiding mechanism is installed in pairs and symmetrically distributed on both sides of the vehicle body, at least two pairs of guiding mechanisms are arranged in front and back of the vehicle body, and the guiding mechanism is fixed on the vehicle body through a mounting flange.

[0015] Further, the upper arm body, the lower arm body and the vehicle body are all steel plate integrally welded into a shape; the upper arm body is an inverted L-shaped structure, a vertical part of the upper arm body forms a sliding cavity, and a transverse part of the upper arm body is connected and fixed with the mounting flange.

[0016] The non-standard track bed electromagnetic track guiding device can effectively improve the passability, anti-tilting property and adaptability of the non-standard track bed, and ensure the driving safety and use requirements of the non-standard track bed tractor. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a three-dimensional schematic view of the electromagnetic track guiding device (omitting the vehicle body);

[0018] Figure 2 is a front view of the electromagnetic track guiding device;

[0019] Figure 3 is a side view of the electromagnetic track guiding device;

[0020] Figure 4 is a three-dimensional schematic view of the guiding mechanism;

[0021] Figure 5 is a side view of the guiding mechanism;

[0022] Figure 6 is Figure 5 is an A-A sectional view of the guiding mechanism;

[0023] Figure 7 is a front view of the guiding mechanism;

[0024] Figure 8 is Figure 7 is a B-B sectional view of the guiding mechanism;

[0025] Figure 9 is a sectional view of the guiding wheel assembly;

[0026] Figure 10 is a three-dimensional schematic view of the screw rod pair assembly;

[0027] Figure 11 is a sectional view of the screw rod pair assembly;

[0028] In the drawings:

[0029] 100, track bed, 110, steel rail;

[0030] 200, vehicle body, 210, mounting flange;

[0031] 300, guide mechanism,

[0032] 310, guide wheel assembly, 311, wheel shaft screw, 312, guide wheel shaft, 313, deep groove ball bearing, 314, positioning sleeve, 315, tapered roller bearing, 316, guide wheel body, 317, round nut, 318, round nut stop washer, 319, guide wheel gland, 3110, gland screw;

[0033] 320, screw pair assembly, 321, adjusting screw, 322, nut, 323, nut connecting screw, 324, elastic cylindrical pin, 325, stop pad, 326, nylon pad, 327, adjusting body cover plate, 328, bearing lower seat, 329, hinge shaft seat, 3210, cover plate bolt, 3211, pin shaft, 3212, thrust bearing, 3213, bearing upper seat, 3214, anti-turning plate;

[0034] 330, upper arm body;

[0035] 340, lower arm body;

[0036] 350, longitudinal adjustment plate group, 351, longitudinal plate countersunk screw, 352, longitudinal hexagonal bolt, 353, longitudinal flange plate, 354, longitudinal damping plate;

[0037] 360, transverse adjustment plate group, 361, transverse flange plate, 362, transverse hexagonal bolt, 363, transverse damping plate, 364, transverse countersunk screw;

[0038] 400, rubber tire wheel. DETAILED DESCRIPTION

[0039] In order to make the structure and function of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application.

[0040] Referring to the drawings Figures 1-3 , an electromagnetic track guide device is shown, which is suitable for guiding the track running of a non-standard track bed traction vehicle, and is used for the running guide of the non-standard track bed traction vehicle in the process of traction and shunting operation, comprising a welded and formed vehicle body 200 symmetrically installed with four rubber tire wheels 400, the rubber tire wheels 400 run on the track bed 100, two pairs of guide mechanisms 300 are symmetrically installed on the front and rear sides of the vehicle body 200, and the guide mechanisms 300 are connected with the installation flange 210 of the vehicle body 200 through bolts.

[0041] Referring to the drawings Figures 4-11, the guide mechanism 300 includes a guide wheel assembly 310, a screw pair assembly 320, an upper arm body 330, a lower arm body 340, a longitudinal adjustment plate set 350 and a transverse adjustment plate set 360, the longitudinal adjustment plate set 350 and the transverse adjustment plate set 360 mainly function to adjust the up-and-down sliding gap between the upper arm body 330 and the lower arm body 340, and change the friction coefficient of the guide. The upper arm body 330 and the lower arm body 340 are both in a steel plate integral welded structure.

[0042] Specifically, the upper arm body 330 is in an inverted L-shaped structure, the transverse part of the upper arm body 330 is connected and fixed with the mounting flange 210, so that the guide mechanism 300 is fixed on the vehicle body 200, the vertical part of the upper arm body 330 is in a rectangular column structure, a sliding cavity is formed inside the vertical part of the upper arm body 330, the lower arm body 340 is gap-fitted and slidingly arranged in the sliding cavity between the inner wall of the sliding cavity of the upper arm body 330, when the screw pair assembly 320 is rotated, the up-and-down sliding displacement of the lower arm body 340 in the sliding cavity of the upper arm body 330 is realized. The lower arm body 340 is fixed with the guide wheel assembly 310, the distance between the upper side of the guide wheel assembly 310 and the lower side of the rail head of the rail 110 of the track bed 100 is adjusted through the up-and-down sliding displacement of the lower arm body 340, under the condition of ensuring the driving safety, the needs of the driving speed and the driving precision adjustment of the tractor are met.

[0043] Referring to the accompanying drawings Figures 10-11 The screw pair assembly 320 includes an adjusting screw 321, a nut 322, a nut connecting screw 323, an elastic cylindrical pin 324, a stop pad 325, a nylon pad 326, an adjusting body cover plate 327, a bearing lower seat 328, a hinge shaft seat 329, a cover plate bolt 3210, a pin shaft 3211, a thrust bearing 3212, a bearing upper seat 3213, and an anti-turning plate 3214.

[0044] Specifically, the adjusting screw 321 is rotatably arranged on the upper arm body 330, the lower part of the adjusting screw 321 extends into the sliding cavity of the upper arm body 330, the nut is fixedly connected with the lower arm body 340, the adjusting screw 321 and the nut 322 are a pair of threaded structures, the adjusting screw 321 converts the rotary motion into the linear motion of the nut 322, and drives the lower arm body 340 to slide up and down in the sliding cavity of the upper arm body 330. The adjusting screw 321 is arranged on the upper arm body through the adjusting body cover plate 327, the adjusting body cover plate 327 is connected above the top plate of the upper arm body 330 through the cover plate bolt 3210, the upper part of the adjusting screw 321 passes through the mounting through hole of the adjusting body cover plate 327 and the upper arm body top plate and is spaced apart from the hole wall of the mounting through hole without contact, so that wear in the rotating process is avoided. In order to avoid the up-and-down movement of the adjusting screw 321 and reduce the wear in the rotating process of the adjusting screw 321, the nylon pad 326, the stop pad 325 and the elastic cylindrical pin 324 are sequentially arranged on the adjusting screw 321 below the adjusting body cover plate 327, the bearing lower seat 328, the thrust bearing 3212, the bearing upper seat 3213 and the elastic cylindrical pin 324 are sequentially arranged on the adjusting screw 321 above the adjusting body cover plate 327, the thrust bearing 3212 provides support and positioning for the rotation of the adjusting screw 321; the part of the adjusting screw above the bearing upper seat 3213 is arranged in a quadrilateral structure; the hinge shaft seat 329 is arranged on the adjusting body cover plate 327, the anti-turning plate 3214 is hingedly connected to the hinge shaft seat 329 through the pin shaft 3211, the limiting through hole matched with the quadrilateral structure of the adjusting screw 321 is formed in the anti-turning plate 3214, after the anti-turning plate 3214 is buckled to the adjusting screw 321, the quadrilateral structure of the top of the adjusting screw 321 is inserted into the limiting through hole of the anti-turning plate 3214, the rotation of the adjusting screw 321 is limited through the limiting through hole, the position of the nut 322 can be positioned, that is, the up-and-down position of the lower arm body 340 and the guide wheel assembly 310 is fixed; the nut connecting screw 323 is used to connect and fix the nut 322 and the lower arm body 340, the nut connecting screw 323 is an internal hexagonal screw.

[0045] The adjusting screw 321 of the embodiment is manually rotated, but the person skilled in the art can design other forms of adjusting screw driving modes such as electric driving on the basis of the embodiment, which also belongs to the protection scope of the application.

[0046] Referring to the accompanying drawings Figure 9 The guide wheel assembly 310 includes the wheel shaft screw 311, the guide wheel shaft 312, the deep groove ball bearing 313, the positioning sleeve 314, the tapered roller bearing 315, the guide wheel body 316, the round nut 317, the round nut stop washer 318, the guide wheel gland 319 and the gland screw 3110.

[0047] Specifically, one end of the guide wheel shaft 312 is assembled into the shaft hole of the guide wheel body 316, and the other end of the guide wheel shaft 312 is connected and fixed with the bottom of the lower arm body 340 through the wheel shaft screw 311, and the wheel shaft screw 311 is selected as an internal hexagonal screw; the guide wheel shaft 312 and the guide wheel body 316 are rotationally supported through the deep groove ball bearing 313 and the tapered roller bearing 315, the deep groove ball bearing 313 is axially limited through the stepped shaft of the guide wheel shaft 312, the positioning sleeve 314 is arranged between the deep groove ball bearing 313 and the tapered roller bearing 315, the positioning sleeve 314 is sleeved on the guide wheel shaft 312, and the tapered roller bearing 315 is axially limited through the round nut 317 and the round nut stop washer 318 connected to the guide wheel shaft 312; the end of the guide wheel body 316 away from the guide wheel shaft 312 is provided with the guide wheel gland 319, the guide wheel gland 319 is fixed on the guide wheel body 316 through the gland screw 3110, and is used for closing the shaft hole of the guide wheel body, and the gland screw 3110 is selected as an internal hexagonal screw.

[0048] The guide wheel body 316 rolls and guides along the rail wall and the rail head lower edge of the rail 110. The end of the guide wheel body 316 away from the guide wheel shaft 312 is provided with a flange with a large diameter, the flange of the guide wheel body 316 cooperates with the rail 110 of the track bed 100 to guide, and the outer circumferential surface of the flange of the guide wheel body 316 is in rolling cooperation with the rail wall of the rail 110 of the track bed 100, the lower arm body 340 is fixed with the guide wheel shaft 312, and the distance between the upper end of the guide wheel assembly 310 and the rail head lower edge of the rail 110 of the track bed 100 is adjusted through the up-down sliding displacement of the lower arm body 340, wherein the upper end of the guide wheel assembly 310 is specifically the end face of the flange of the guide wheel body close to the end of the guide wheel shaft 312.

[0049] Referring to the drawings Figures 4-8The two longitudinal adjustment plate groups 350 are symmetrically installed on the opposite sides of the upper arm body 330, one on each side surface; the four lateral adjustment plate groups 360 are symmetrically installed on the other two opposite sides of the upper arm body 330, two on each side surface. The main function of the longitudinal adjustment plate group 350 and the lateral adjustment plate group 360 is to adjust the up-and-down sliding gap between the upper arm body 330 and the lower arm body 340 and change the friction coefficient of the guide. The sliding cavity wall of the upper arm body 330 is a rectangular column structure, one set of opposite sliding cavity walls are provided with longitudinal adjustment windows, and the other set of opposite sliding cavity walls are provided with lateral adjustment windows; the longitudinal adjustment plate group 350 is assembled in the longitudinal adjustment window, the longitudinal adjustment plate group 350 includes longitudinal plate countersunk screws 351, longitudinal plate hexagonal bolts 352, longitudinal flange plates 353, and longitudinal damping plates 354, the longitudinal flange plates 353 are fixed on the upper arm body 330 through the longitudinal plate hexagonal bolts 352, the longitudinal flange plates 353 are connected and fixed with the longitudinal damping plates 354 through the longitudinal plate countersunk screws 351, and the longitudinal damping plates 354 are assembled in the longitudinal adjustment window for pressing the lower arm body 340; the lateral adjustment plate group 360 is assembled in the lateral adjustment window, the lateral adjustment plate group 360 includes lateral flange plates 361, lateral plate hexagonal bolts 362, lateral damping plates 363, and lateral plate countersunk screws 364, the lateral flange plates 361 are fixed on the upper arm body 330 through the lateral plate hexagonal bolts 362, the lateral flange plates 361 are connected and fixed with the lateral damping plates 363 through the lateral plate countersunk screws 364, and the lateral damping plates 363 are assembled in the lateral adjustment window for pressing the lower arm body 340; the longitudinal damping plates 354 and the lateral damping plates 363 are both nylon plates, and adjusting the thickness of the longitudinal damping plates 354 and the lateral damping plates 363 can change the up-and-down sliding gap between the upper arm body 330 and the lower arm body 340.

[0050] When the four rubber tire wheels 400 of the tractor drive on the ballast bed 100, the guide wheels 316 of the guide wheel assemblies 310 of the two pairs of guide mechanisms 300 of the tractor roll and guide along the rail wall and the rail head lower edge of the rail 110. The mature rail guide device of the tractor can meet the safety of the traction and guidance of the equipment driving on the non-standard ballast bed. Specifically, the outer circumferential surface of the flange of the guide wheel body 316 is in rolling cooperation with the rail wall of the rail 110 of the ballast bed 100. The height position of the guide wheel body 316 needs to be adjusted according to the rail parameters of the non-standard ballast bed. When the distance between the upper edge of the guide wheel body 316 and the rail head lower edge of the ballast bed is too small, the adjusting screw 321 is rotated, the lower arm body 340 and the guide wheel assembly 310 are lowered, and the distance between the upper edge of the guide wheel body 316 and the rail head lower edge of the ballast bed is expanded. When the distance between the upper edge of the guide wheel body 316 and the rail head lower edge of the ballast bed is too large, the adjusting screw 321 is reversely rotated, the lower arm body 340 and the guide wheel assembly 310 are lifted, and the distance between the upper edge of the guide wheel body 316 and the rail head lower edge of the ballast bed is reduced. If the lower arm body 340 is too sluggish during the up-and-down sliding process and is difficult to slide, it indicates that the friction between the lower arm body 340 and the longitudinal damping plate 354 and the transverse damping plate 363 is too large. The longitudinal damping plate 354 and the transverse damping plate 363 can be removed and replaced with longitudinal damping plates 354 and transverse damping plates 363 with smaller thicknesses to reduce the sliding friction of the lower arm body 340. If the lower arm body 340 is not stably positioned and can shake in the horizontal direction, it indicates that the sliding gap of the lower arm body 340 is too large. The longitudinal damping plate 354 and the transverse damping plate 363 can be removed and replaced with longitudinal damping plates 354 and transverse damping plates 363 with larger thicknesses to reduce the gap between the lower arm body 340 and the longitudinal damping plate 354 and the transverse damping plate 363 and increase the sliding friction of the lower arm body 340.

[0051] The present application can achieve the following use effects:

[0052] 1. The guide wheel of the electromagnetic rail guide device can be lifted and lowered to adjust the gap between the guide wheel assembly and the rail head lower edge; 2. The electromagnetic rail guide device has the guide structure stiffness and adjustment reliability that meet the walking traction working conditions, and ensures the stable and safe driving of the tractor without deviation and rollover when driving on the non-standard ballast bed; 3. The electromagnetic rail guide device provided with the manually adjustable screw pair assembly can effectively control the walking accuracy of the non-standard ballast bed walking guide device, and meet the driving and hitching safety of the tractor at different walking speeds; 4. The manually adjustable screw pair can avoid the occurrence of the suspension and side lifting of one side of the guide wheel of the tractor when driving on the non-standard ballast bed, and effectively improve the reliability and adaptability of the non-standard ballast bed walking guide driving.

[0053] It should be noted that the parts not described in detail in the present application are prior art.

[0054] The above-mentioned are only the best embodiments of the present application. It is obvious that the present application is not limited to the above-mentioned embodiments, and there are many variations. All the variations that can be directly derived or thought of by those skilled in the art from the disclosure of the present application should be considered as falling within the protection scope of the present application.

Claims

1. An electromagnetic track guiding device, characterized in that: The system includes an upper arm body, a lower arm body, a guide wheel assembly, and a lead screw assembly. The upper arm body has a vertical sliding cavity. The lower arm body is fitted with the inner wall of the upper arm body's sliding cavity and slidably disposed within the cavity. The lead screw assembly is rotatably mounted on the upper arm body, with its lower part fixedly connected to the lower arm body. The lead screw assembly converts rotational motion into linear motion, thereby causing the lower arm body to slide up and down within the upper arm body's sliding cavity. The lower arm body is fixed to the guide wheel assembly, and the distance between the guide wheel assembly and the rail head of the track bed is adjusted by the up-and-down sliding displacement of the lower arm body. Several adjustment windows are provided on the sliding cavity wall of the upper arm body. Adjustment plates are detachably installed within these windows. Pressure is applied to the lower arm body by the adjustment plates to adjust the up-and-down sliding clearance of the lower arm body. The lead screw assembly includes a threaded adjusting lead screw and a lead screw nut. The adjusting lead screw is rotatably mounted on the upper arm body, and the lower part of the adjusting lead screw extends into the sliding cavity. The lead screw nut is fixedly connected to the lower arm body. The adjusting lead screw and lead screw nut have a paired threaded structure. The adjusting lead screw converts the rotational motion into the linear motion of the lead screw nut, causing the lower arm body to slide up and down in the sliding cavity of the upper arm body. The distance between the upper edge of the guide wheel assembly and the lower edge of the rail head of the track bed is adjusted by the up and down sliding displacement of the lower arm body. The guide wheel assembly includes a guide wheel body and a guide wheel shaft. The guide wheel body rolls and guides the rail along the rail wall and the lower edge of the rail head. The top of the adjusting screw is set as a quadrilateral structure, and a hinge seat is set above the upper arm body. An anti-turning plate is hinged to the hinge seat by a pin. The anti-turning plate has a limiting through hole that matches the quadrilateral structure of the adjusting screw. After the anti-turning plate is pressed onto the adjusting screw, the rotation of the adjusting screw is restricted by the limiting through hole. The adjustment plate assembly includes a flange plate and a damping plate. The flange plate is detachably installed on the upper arm body, and the damping plate is detachably connected to the flange plate. The flange plate assembles the damping plate into the adjustment window for pressing against the lower arm body. The upper and lower sliding gap between the upper arm body and the lower arm body can be changed by changing the thickness of the damping plate. The adjustment plate group is divided into a longitudinal adjustment plate group and a transverse adjustment plate group; two longitudinal adjustment plate groups are symmetrically installed on opposite sides of the upper arm body, with one longitudinal adjustment plate group on each side surface located in the middle; four transverse adjustment plate groups are symmetrically installed on the other opposite sides of the upper arm body, with two transverse adjustment plate groups on each side surface arranged vertically. The sliding cavity wall of the upper arm is a rectangular column structure. One set of opposing sliding cavity walls has longitudinal adjustment windows, and the other set has transverse adjustment windows. A longitudinal adjustment plate assembly is installed within the longitudinal adjustment window. This assembly includes a longitudinal flange plate and a longitudinal damping plate. The longitudinal flange plate is fixed to the upper arm body with longitudinal hexagonal bolts. The longitudinal flange plate and the longitudinal damping plate are connected and fixed with longitudinal countersunk screws. The longitudinal damping plate is installed within the longitudinal adjustment window for pressing against the lower arm body. Similarly, a transverse adjustment plate assembly is installed within the transverse adjustment window. This assembly includes a transverse flange plate and a transverse damping plate. The transverse flange plate is fixed to the upper arm body with transverse hexagonal bolts. The transverse flange plate and the transverse damping plate are connected and fixed with transverse countersunk screws. The transverse damping plate is installed within the transverse adjustment window for pressing against the lower arm body. Both the longitudinal and transverse damping plates are made of nylon. Adjusting the thickness of the longitudinal and transverse damping plates changes the upward and downward sliding gap between the upper and lower arm bodies.

2. The electromagnetic track guiding device according to claim 1, characterized in that: The adjusting screw is mounted on the upper arm body via an adjusting body cover plate, which is connected to the top plate of the upper arm body via cover plate bolts. The upper part of the adjusting screw passes through the mounting through holes in the adjusting body cover plate and the top plate of the upper arm body. A nylon pad, a retaining pad, and a flexible cylindrical pin are sequentially provided on the adjusting screw below the adjusting body cover plate. A lower bearing seat, a thrust bearing, an upper bearing seat, and a flexible cylindrical pin are sequentially provided on the adjusting screw above the adjusting body cover plate. The screw nut is connected and fixed to the lower arm body via several screw nut connecting screws, which are hexagon socket head cap screws.

3. The electromagnetic track guiding device according to claim 1, characterized in that: One end of the guide wheel shaft is fitted into the shaft hole of the guide wheel body, and the other end of the guide wheel shaft is connected and fixed to the bottom of the lower arm body by a wheel shaft screw, which is an internal hexagon screw. The guide wheel shaft and the guide wheel body are rotatably supported by a deep groove ball bearing and a tapered roller bearing. The deep groove ball bearing is axially limited by the stepped platform of the guide wheel shaft. A positioning sleeve is provided between the deep groove ball bearing and the tapered roller bearing. The tapered roller bearing is axially limited by a round nut and a round nut retaining washer connected to the guide wheel shaft. A guide wheel cover is installed at the end of the guide wheel body. The guide wheel cover is fixed to the guide wheel body by a cover screw, which is used to close the shaft hole of the guide wheel body. The cover screw is an internal hexagon screw.

4. The electromagnetic track guiding device according to any one of claims 1-3, characterized in that: It also includes a vehicle body with four rubber-tired wheels symmetrically installed; the upper arm body, lower arm body, guide wheel assembly and lead screw assembly constitute a guide mechanism, the guide mechanism is installed in pairs and symmetrically distributed on both sides of the vehicle body, and at least two pairs of guide mechanisms are provided at the front and rear of the vehicle body, and the guide mechanism is fixed to the vehicle body by mounting flanges.

5. The electromagnetic track guiding device according to claim 4, characterized in that: The upper arm, lower arm, and vehicle body are all welded structures; the upper arm is an inverted L-shaped structure, with the vertical part of the upper arm forming a sliding cavity, and the horizontal part of the upper arm being connected and fixed to the mounting flange.

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