Track center detector

Abstract

The present application discloses a track center detector, which belongs to the technical field of track I-beam or strip section center line detection, and specifically comprises a vehicle body assembly arranged above a track I-beam, a trolley automatic centering installation assembly, two of which are respectively arranged at the front end and the rear end of the vehicle body assembly, the lower part of the trolley centering assembly is attached to the side surface and the lower edge of the top end of the track I-beam, a walking driving assembly installed on the vehicle body assembly, the lower part of the walking driving assembly is attached to the top end of the track I-beam, and a measuring assembly installed at the top middle part of the vehicle body assembly. The track center detector can move along the track I-beam in a remote control mode while automatically avoiding obstacles in front of the track, can remotely control the orientation of the prism, and can conveniently complete the marking of the steel rail center line and the automatic marking of the unqualified part of the width, thereby saving working time.

Description

Technical Field

[0001] This invention relates to the field of centerline detection technology for rail I-beams or strip profiles, specifically a rail centerline detector. Background Technology

[0002] A track inspection vehicle is a special vehicle used to inspect the geometry and irregularities of a track in order to evaluate its geometric condition. It is a crucial tool for ensuring safe, smooth, and comfortable train operation and guiding track maintenance. Based on the records from the track inspection vehicle, locations with poor track smoothness can be identified, allowing for emergency repairs or speed restrictions, and determining the mileage sections requiring planned maintenance, thus enabling the creation of maintenance work plans. A track inspection instrument is a type of track inspection vehicle used to inspect the track centerline.

[0003] However, existing track center detection instruments do not have remote control and drive structures. In particular, when inspecting the track of a factory bridge crane, the track beam is very narrow, and it is very dangerous to move it manually. They also do not have the function of automatically marking the wear or deformation parts during material acceptance and use. Furthermore, in steel structure processing, it is usually necessary to mark the center line of strip profiles such as I-beams. Using conventional methods, the workload is large. At the same time, the orientation of the prism is relatively fixed and cannot be aligned with the total station. Summary of the Invention

[0004] The main objective of this invention is to propose a track center detection instrument, which aims to solve the problems of existing track center detection instruments lacking remote control and drive structures. In particular, when inspecting the track of a factory bridge crane, the narrow track beams make manual pushing during movement extremely dangerous. Furthermore, these instruments lack the function of automatically marking worn or deformed parts during material acceptance and use. In steel structure processing, it is usually necessary to mark the center lines of strip profiles such as I-beams, which is labor-intensive using conventional methods. Additionally, the orientation of the prism is relatively fixed and cannot be aligned with a total station.

[0005] To address the aforementioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution: The car body assembly is positioned above the I-beams of the rails; The automatic centering and installation components for the trolley are installed at the front and rear ends of the trolley body components respectively. The lower part of the automatic centering and installation components is attached to the side and lower edge of the top of the track I-beam. A travel drive assembly is mounted on the vehicle body assembly, with the lower part of the travel drive assembly attached to the top of the track I-beam. The measuring component is installed at the top center of the vehicle body component; An obstacle avoidance warning control component is installed on the vehicle body component, and the obstacle avoidance warning control component is signal-connected to the walking drive component and the measurement component; A marking assembly is installed on the rear transverse centerline of the vehicle body assembly, with the lower part of the marking assembly attached to the top of the track I-beam. The car body assembly serves as the main body of the track centering detector and houses the automatic centering mounting assembly, the travel drive assembly, the measurement assembly, the obstacle avoidance warning control assembly, and the marking assembly. The automatic centering mounting assembly mounts the car body assembly onto the track I-beams and enables the car body assembly to move along the track I-beams. The travel drive assembly drives the car body assembly to move along the track I-beams. The measurement assembly provides auxiliary measurement functions for the total station. The obstacle avoidance warning control assembly provides obstacle avoidance warning functions and controls the movement of the drive assembly. The marking assembly provides marking functions.

[0006] As a preferred embodiment of the track center detector of the present invention, the vehicle body assembly includes a base plate, a limiting slide groove, and a handle. The two limiting slide grooves are respectively opened on the top two sides of the base plate, and a stabilizing block is movably connected in the limiting slide groove. The two handles are respectively installed on the top two sides of the base plate, and anti-slip textures are provided on the handles. The base plate is used to install other devices above it, the limiting slide groove is used to provide a channel for the stabilizing block to slide and to limit the movement trajectory of the stabilizing block, and the handle is used to facilitate picking up the base plate.

[0007] As a preferred embodiment of the track center detection instrument of the present invention, the automatic centering installation assembly of the trolley includes a mounting column, a cover plate, a dovetail block, a connecting rod, a mounting rod, a stabilizing block, and a needle roller bearing. The bottom ends of the two mounting columns are respectively connected to the top sides of the base plate. The two mounting columns are arranged in opposite directions and are located on the transverse center line of the base plate. A dovetail groove is opened at the front end of the mounting column. The cover plate is set at the top of the mounting column. The bottom end of the cover plate is connected to the top end of a first tension spring, and the bottom end of the first tension spring is installed at the top end of the dovetail block. The dovetail block is movably connected inside the dovetail groove. Two sets of connecting rods are equidistantly movably connected to the upper and lower parts of the front end of the dovetail block, and the two connecting rods in each set are mirror images of each other. The front end of the mounting rod is movably connected to two connecting rods on the same side. The stabilizing block is installed at the bottom end of the mounting rod, and the two stabilizing blocks are connected to each other by a second tension spring. The needle roller bearing is installed at the bottom end of the stabilizing block and is attached to the side of the top end of the track I-beam. The transverse center of the mounting column is located on the transverse center line of the base plate. Along the centerline; the mounting column is used to fix the cover plate and has a dovetail groove. The dovetail groove provides a channel for the dovetail block to slide. The cover plate is used to install the first tension spring and restrict its movement. The first tension spring is used to drive the dovetail block to move up and down to tighten the connecting rod. The dovetail block is used to install the connecting rod and drive the connecting rods on both sides to move synchronously. The connecting rods on both sides are used to drive the mounting rods on both sides to move synchronously. Under the action of the limiting slide groove, the mounting rods on both sides can only drive the stabilizing blocks on both sides to move synchronously horizontally. The stabilizing blocks on both sides move horizontally along the limiting slide groove and drive the needle roller bearings on both sides to move horizontally synchronously. The needle roller bearings are used to attach to the side of the top of the track I-beam. The second tension spring pulls the stabilizing block horizontally to make the horizontal movement more stable. Because the needle roller bearings on both sides of the automatic centering module synchronously squeeze the outer edge of the track under the action of the spring force, the left and right mounting rods synchronously contract horizontally under the action of the parallel connecting rod and the spring force inside, so that the track center detector can only move horizontally as a whole to automatically adapt to the track width. Because the horizontal center of the mounting column is on the horizontal center of the base plate, the horizontal center of the track always coincides with the horizontal center of the detector base plate.

[0008] As a preferred embodiment of the track center detection instrument of the present invention, wherein: one end of a U-shaped stepped shaft is installed at the bottom end of the needle roller bearing, and a bullseye ball bearing is installed at the other end of the U-shaped stepped shaft, with the top end of the bullseye ball bearing fitting against the lower edge of the top of the track I-beam; the U-shaped stepped shaft is used to connect the needle roller bearing and the bullseye ball bearing, and the bullseye ball bearing is used to fit against the edge of the upper bottom end of the track I-beam, assisting in movement while preventing the track center detection instrument from swaying left and right, and avoiding the track center detection instrument from tipping over.

[0009] As a preferred embodiment of the track center detection instrument of the present invention, the stabilizer block has concave trapezoidal grooves on both sides, and the stabilizer block is limited to slide laterally in the limiting groove by trapezoidal limiting. The top of the stabilizer block has an oil injection hole, and the oil injection hole is connected to the trapezoidal groove. The stabilizer block is used to slide along the limiting groove to stabilize and prevent it from falling out of the limiting groove. The oil injection hole is used to inject lubricating oil into the trapezoidal groove.

[0010] As a preferred embodiment of the track center detection instrument of the present invention, the walking drive assembly includes a drive motor and drive wheels. The two drive motors are respectively installed on both sides of the rear end of the base plate, and the four drive wheels are respectively movably connected in the grooves opened at the four corners of the base plate. The output ends of the two drive motors are connected to the two drive wheels located at the rear end of the base plate. The drive motors are used to drive the drive wheels to rotate, and the drive wheels are used to drive the base plate to move along the track I-beam.

[0011] In a preferred embodiment of the track center detection instrument of the present invention, the measuring component includes a rotary motor and a prism. The rotary motor is mounted on the top of the base plate, and the prism is mounted on the output end of the rotary motor. The horizontal rotation center of the prism is located on the transverse centerline of the base plate. The rotary motor is used to drive the prism to rotate so that it is aligned with the total station. The prism is used to cooperate with the total station to perform measurement work. Because the automatic centering installation component will make the transverse centerline of the detection instrument base plate located on the transverse centerline of the track, the measured three-dimensional coordinates are the three-dimensional coordinates on the track centerline, which is convenient for analyzing track deviation.

[0012] As a preferred embodiment of the track center detector of the present invention, the obstacle avoidance warning control component includes a control module, an obstacle avoidance radar, a camera, and a warning light. The control module is installed on the top of the base plate. The obstacle avoidance radar and the camera are connected to a mounting post on one side, and the warning light is connected to a mounting post on the other side. The control module is used to control other electronic devices, the obstacle avoidance radar is used to send a signal when it senses an obstacle in front, the camera is used to capture video images, and the warning light is used to provide information to people in the surrounding area.

[0013] As a preferred embodiment of the track center detection instrument of the present invention, the marking assembly includes a fixed rod, a pressure rod, a vertical screw, a marking pen, an electromagnet, a vertical slide, a third tension spring, a limit lever, a minimum width limit switch, and a maximum width limit switch. The fixed rod and the pressure rod are respectively connected to the upper and lower ends of the horizontal center of the mounting column at the rear end of the base plate. The vertical screw is threaded to one end of the pressure rod, and the bottom end of the vertical screw is attached to the top of the electromagnet. The marking pen is movably connected to one end of the fixed rod. The electromagnet and the third tension spring are connected to the upper end of the marking pen. The limit lever is connected to the stabilizing block at the rear end of the base plate. The minimum width limit switch and the maximum width limit switch are both connected to the top end of the rear end of the base plate, and the minimum width limit switch and the maximum width limit switch are located on both sides of the limit lever. The minimum width limit switch and the maximum width limit switch are electrically connected to the control module and the electromagnet. The fixed rod is used to install the marking pen. The marking pen and pressure rod are used to install the vertical screw. The vertical screw moves on the pressure rod by rotation, thereby driving the marking pen to move vertically downwards to mark lines when the track center detector moves. The marking pen provides marking functionality for the track I-beams. The electromagnet, after being energized, pushes the marking pen downwards to mark lines. The vertical slide groove allows the marking pen to slide up and down along the fixed rod. The third tension spring drives the marking pen to reset upwards after the electromagnet is de-energized. The limit lever triggers the minimum width limit switch and the maximum width limit switch. When the width of the track I-beam or strip profile exceeds the tolerance, the limit lever triggers the minimum width limit switch or the maximum width limit switch, energizing the electromagnet. The marking pen moves downwards to mark the non-conforming parts. When the width of the track I-beam or strip profile is within the tolerance, the limit lever moves away from the limit switch, de-energizing the electromagnet. The marking pen resets upwards under the action of the third tension spring.

[0014] As a preferred embodiment of the track center detector of the present invention, a vertical rectangular slider is provided on one side of the fixed rod, and the vertical rectangular slider is movably connected to a vertical groove, which is opened on the longitudinal axis of the drawing pen.

[0015] The beneficial effects of this invention are as follows: The trolley automatic centering and installation component installs the trolley body assembly onto the track I-beam. The obstacle avoidance warning control component controls the operation of the walking drive component, which drives the trolley body assembly to move along the track I-beam. When the trolley body assembly moves, the obstacle avoidance warning control component senses obstacles in front of the trolley body assembly and alerts surrounding personnel to avoid the trolley body assembly. When an obstacle is encountered, the walking drive component controls the trolley body assembly to brake. When passing through the marking component, marking work can be performed on the track I-beam and the width of non-compliant parts can be automatically marked. When it is necessary to measure the three-dimensional coordinates of the track centerline position, the measuring component works with a total station to perform the measurement. This track center detection instrument can automatically avoid obstacles in front of the track and move along the track I-beams via remote control. It can also remotely control the orientation of the prism and conveniently mark the center line of the rail and automatically mark the width defects, saving working time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a side view of the present invention; Figure 3 This is a schematic diagram of the automatic centering and installation component of the trolley according to the present invention; Figure 4 For the present invention Figure 1 Enlarged view of point A in the middle.

[0018] Explanation of icon numbers:

[0019] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that if the embodiments of the present invention involve directional indicators such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the figure. If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0023] This invention provides a track center detection instrument that can move along the track I-beams via remote control while automatically avoiding obstacles in front of the track. It can also remotely control the orientation of the prism and conveniently mark the center line of the rail and automatically mark the width defects, saving working time. Example

[0024] Please see Figures 1-4 Track center detection instrument, including: The car body assembly 100 is positioned above the track I-beam; The automatic centering mounting component 200 for the trolley is installed in two parts, one at the front end and the other at the rear end of the trolley body component 100. The lower part of the automatic centering mounting component 200 is attached to the side and lower edge of the top of the track I-beam. A travel drive assembly 300 is mounted on the vehicle body assembly 100, with the lower part of the travel drive assembly 300 attached to the top of the track I-beam. The measuring component 400 is installed at the top center of the vehicle body component 100; An obstacle avoidance warning control component 500 is installed on the vehicle body component 100, and the obstacle avoidance warning control component 500 is signal-connected to the walking drive component 300 and the measurement component 400; A marking assembly 600 is installed on the rear transverse centerline of the vehicle body assembly 100, with the lower part of the marking assembly 600 attached to the top of the track I-beam. In practical use, the trolley automatic centering and installation component 200 installs the trolley body component 100 onto the track I-beam. The obstacle avoidance warning control component 500 controls the operation of the travel drive component 300, which drives the trolley body component 100 to move along the track I-beam. When the trolley body component 100 moves, the obstacle avoidance warning control component 500 senses obstacles in front of the trolley body component 100 and alerts surrounding personnel to avoid the trolley body component 100. When an obstacle is encountered, the travel drive component 300 brakes the trolley body component 100. After passing through the marking component 600, marking work can be performed on the track I-beam. When measurement work is required, the measurement component 400 works with the total station to perform the measurement. Example

[0025] Please refer to it again. Figures 1-4 The automatic centering and mounting assembly 200 for the trolley includes mounting posts 210, cover plates 220, dovetail blocks 230, connecting rods 240, mounting rods 250, stabilizing blocks 260, and needle roller bearings 270. The bottom ends of the two mounting posts 210 are respectively bolted to the top sides of the base plate 110. The two mounting posts 210 are arranged in opposite directions and are located on the transverse center line of the base plate 110. The front end of each mounting post 210 has a dovetail groove 211. The cover plate 220 is located at the top of the mounting posts 210, and the bottom end of the cover plate 220 is welded to the top end of a first tension spring 221, which is also welded to the top end of the dovetail block 230. The dovetail block 230 is slidably connected inside the dovetail groove 211. Two sets of connecting rods 240 are equidistantly connected to the upper and lower front ends of the dovetail block 230 via a shaft, and the two connecting rods 240 in each set are mirror images. The front end of the mounting rod 250 is rotatably connected to the two connecting rods 240 on the same side via a shaft. The stabilizing block 260 is bolted to the bottom end of the mounting rod 250, and the two stabilizing blocks 260 are connected to each other by a second tension spring 261. The needle roller bearing 270 is embedded in the bottom end of the stabilizing block 260, and the needle roller bearing 270 is attached to the side of the top end of the track I-beam. The transverse center of the mounting column 210 is located on the transverse center line of the base plate 110. The bottom end of the needle roller bearing 270 is embedded and connected to one end of the U-shaped stepped shaft 280, and the other end of the U-shaped stepped shaft 280 is embedded and connected to the bullseye ball bearing 290, with the top end of the bullseye ball bearing 290 attached to the lower edge of the top of the track I-beam. Both sides of the stabilizing block 260 are provided with concave trapezoidal grooves, and the stabilizing block 260 is restricted to slide laterally within the limiting groove 120 by trapezoidal limiting. The top of the stabilizing block 260 is provided with an oil injection hole 262, and the oil injection hole 262 is connected to the trapezoidal groove. By moving one side of the needle roller bearing 270, the needle roller bearing 270 drives the other side of the needle roller bearing 270 to unfold simultaneously via the mounting rod 250 and the connecting rod 240. Then, the device is placed on the track I-beam, and the needle roller bearing 270 is released. The first tension spring 221 drives the dovetail block 230 to move upward along the dovetail groove 211. When the dovetail block 230 slides, it drives the connecting rods 240 on both sides to move upward. When the connecting rods 240 on both sides move upward, they drive the two mounting rods 250 to move closer together. The mounting rods 250, in conjunction with the second tension spring 261, drive the two stabilizing blocks 260 to move closer together, so that the needle roller bearings 270 on both sides simultaneously fit against the side wall of the track I-beam, and the transverse center line of the base plate 110 is located at the transverse center line of the track I-beam. Example

[0026] Please refer to it again. Figures 1-4 The walking drive assembly 300 includes a drive motor 310 and drive wheels 320. The two drive motors 310 are respectively bolted to both sides of the rear end of the base plate 110. The four drive wheels 320 are respectively connected to the grooves opened at the four corners of the base plate 110 by shafts. The output ends of the two drive motors 310 are embedded and connected to the two drive wheels 320 located at the rear end of the base plate 110. The drive motor 310 drives the drive wheel 320 to rotate, and the drive wheel 320 moves at the top of the track I-beam, which in turn moves the base plate 110. Example

[0027] Please refer to it again. Figures 1-4 The measuring component 400 includes a rotary motor 410 and a prism 420. The rotary motor 410 is bolted to the top of the base plate 110, and the prism 420 is bolted to the output end of the rotary motor 410. The horizontal rotation center of the prism 420 is located on the transverse center line of the base plate 110. The prism 420 is rotated by the rotary motor 410 to a suitable angle, so that the total station can complete the measurement work. Example

[0028] Please refer to it again. Figures 1-4 The obstacle avoidance warning control component 500 includes a control module 510, an obstacle avoidance radar 520, a camera 530, and a warning light 540. The control module 510 is bolted to the top of the base plate 110. The obstacle avoidance radar 520 and the camera 530 are bolted to a mounting post 210 on one side. The warning light 540 is bolted to a mounting post 210 on the other side. The obstacle avoidance radar 520 senses obstacles ahead and takes pictures via camera 530. The obstacle avoidance radar 520 sends the sensing signal to the control module 510. When necessary, the control module 510 controls the drive component to brake. When the track center detector moves, the warning light 540 turns on to remind people around to avoid it. Example

[0029] Please refer to it again. Figures 1-4 The marking assembly 600 includes a fixing rod 610, a pressure rod 620, a vertical screw 630, a marking pen 640, an electromagnet 650, a vertical slide 660, a third tension spring 670, a limit lever 680, a minimum width limit switch 690, and a maximum width limit switch 691. The fixing rod 610 and the pressure rod 620 are respectively connected to the upper and lower ends of the horizontal center of the mounting post 210 at the rear end of the base plate 110. The vertical screw 630 is threaded to one end of the pressure rod 620, and the bottom end of the vertical screw 630 is attached to the top end of the electromagnet 650. The marking pen 640... The electromagnet 650 and the third tension spring 670 are connected to the upper end of the marking pen 640. The limit lever 680 is connected to the stabilizing block 260 at the rear end of the base plate 110. The minimum width limit switch 690 and the maximum width limit switch 691 are both connected to the top end of the rear end of the base plate 110, and the minimum width limit switch 690 and the maximum width limit switch 691 are set on both sides of the limit lever 680. The minimum width limit switch 690 and the maximum width limit switch 691 are electrically connected to the control module 510 and the electromagnet 650. A vertical rectangular slider is provided on one side of the fixed rod 610, and the vertical rectangular slider is movably connected to a vertical groove 660, which is opened on the longitudinal axis of the drawing pen 640. In practical applications, when rail I-beams or strip profiles need to be inspected upon arrival or when old rails are being tested, the lateral width of the old rails may be narrowed due to wear or widened due to heavy pressure. Exceeding a certain range will pose a safety risk. Therefore, travel limit switches are installed within the allowable lateral width range of the rails. A minimum width limit switch 690 is installed at the minimum width location on the base plate of the rail center detector, and a maximum width limit switch 691 is installed at the maximum allowable width location. A limit lever 680 is installed on the lateral stabilizing block 260. When the limit lever 680 on the stabilizing block 260 exceeds the lateral width limit of the rails, the minimum width limit switch is triggered. When the limit switch 690 or the maximum width limit switch 691 is energized, the electromagnet 650 is energized, which compresses the marking pen 640 through the vertical slide 660 and moves it downward on the fixed rod 610 to automatically draw lines. When the width is within acceptable limits, the minimum width limit switch 690 or the maximum width limit switch 691 is de-energized, and the marking pen 640 is reset under the action of the third tension spring 670, automatically marking the unacceptable parts. When it is necessary to draw the center line of the track I-beam along the entire length, the marking pen 640 is moved downward by rotating the vertical screw 630 to draw lines.

[0030] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A track center detection instrument, characterized in that, include: The car body assembly (100) is positioned above the rail I-beam; The vehicle body assembly (100) includes a base plate (110), a limiting slide groove (120), and a handle (130). The two limiting slide grooves (120) are respectively opened on the top two sides of the base plate (110), and a stabilizing block (260) is movably connected in the limiting slide groove (120). The two handles (130) are respectively installed on the top two sides of the base plate (110), and anti-slip textures are provided on the handles (130). Automatic centering installation components (200) for trolleys are installed at the front and rear ends of the vehicle body assembly (100), respectively. The lower part of the automatic centering installation components (200) is attached to the side and lower edge of the top of the track I-beam. The automatic centering mounting assembly (200) for the trolley includes mounting posts (210), cover plates (220), dovetail blocks (230), connecting rods (240), mounting rods (250), stabilizing blocks (260), and needle roller bearings (270). The bottom ends of the two mounting posts (210) are respectively connected to the top sides of the base plate (110). The two mounting posts (210) are arranged in opposite directions and are located on the transverse center line of the base plate (110). The front end of the mounting post (210) is provided with a dovetail groove (211). The cover plate (220) is set at the top of the mounting post (210). The bottom end of the cover plate (220) is connected to the top end of a first tension spring (221), and the bottom end of the first tension spring (221) is installed on the dovetail block (230). At the top of the dovetail block (230), the dovetail block (230) is movably connected to the inside of the dovetail groove (211). Two sets of connecting rods (240) are equidistantly movably connected to the upper and lower front ends of the dovetail block (230), and the two connecting rods (240) of each set are mirror images. The front end of the mounting rod (250) is movably connected to the two connecting rods (240) on the same side. The stabilizing block (260) is installed at the bottom end of the mounting rod (250), and the two stabilizing blocks (260) are connected to each other by a second tension spring (261). The needle roller bearing (270) is installed at the bottom end of the stabilizing block (260), and the needle roller bearing (270) is attached to the side of the top end of the track I-beam. The transverse center of the mounting column (210) is located on the transverse center line of the base plate (110). The stabilizer (260) has concave trapezoidal grooves on both sides, and the stabilizer (260) is limited to slide laterally in the limiting slide groove (120) by trapezoidal limiting. The stabilizer (260) has an oil injection hole (262) at the top, and the oil injection hole (262) is connected to the trapezoidal groove. A travel drive assembly (300) is mounted on the vehicle body assembly (100), with the lower part of the travel drive assembly (300) attached to the top of the track I-beam; A measuring component (400) is installed at the top center of the vehicle body component (100); An obstacle avoidance warning control component (500) is installed on the vehicle body component (100), and the obstacle avoidance warning control component (500) is signal connected to the walking drive component (300) and the measurement component (400); A marking assembly (600) is installed on the rear transverse centerline of the vehicle body assembly (100), with the lower part of the marking assembly (600) attached to the top of the track I-beam. The marking assembly (600) includes a fixed rod (610), a pressure rod (620), a vertical screw (630), a marking pen (640), an electromagnet (650), a vertical groove (660), a third tension spring (670), a limit lever (680), a minimum width limit switch (690), and a maximum width limit switch (691). The fixed rod (610) and the pressure rod (620) are respectively connected to the upper and lower ends of the horizontal center of the mounting post (210) at the rear end of the base plate (110). The vertical screw (630) is threaded to one end of the pressure rod (620), and the bottom end of the vertical screw (630) is attached to the top end of the electromagnet (650). The marking pen (640) 0) The electromagnet (650) and the third tension spring (670) are connected to one end of the fixed rod (610), the electromagnet (650) and the third tension spring (670) are connected to the upper end of the drawing pen (640), the limit lever (680) is connected to the stabilizing block (260) at the rear end of the base plate (110), the minimum width limit switch (690) and the maximum width limit switch (691) are both connected to the top end of the rear end of the base plate (110), and the minimum width limit switch (690) and the maximum width limit switch (691) are set on both sides of the limit lever (680). The minimum width limit switch (690) and the maximum width limit switch (691) are electrically connected to the control module (510) and the electromagnet (650). A vertical rectangular slider is provided on one side of the fixed rod (610), and the vertical rectangular slider is movably connected to a vertical groove (660), which is opened on the longitudinal axis of the drawing pen (640).

2. The track center detection instrument according to claim 1, characterized in that, The bottom end of the needle roller bearing (270) is equipped with one end of a U-shaped stepped shaft (280), and the other end of the U-shaped stepped shaft (280) is equipped with a bullseye ball bearing (290), with the top end of the bullseye ball bearing (290) attached to the lower edge of the top of the track I-beam.

3. The track center detection instrument according to claim 1, characterized in that, The walking drive assembly (300) includes a drive motor (310) and drive wheels (320). The two drive motors (310) are respectively installed on both sides of the rear end of the base plate (110), and the four drive wheels (320) are respectively movably connected in the grooves opened at the four corners of the base plate (110). The output ends of the two drive motors (310) are connected to the two drive wheels (320) located at the rear end of the base plate (110).

4. The track center detection instrument according to claim 1, characterized in that, The measuring component (400) includes a rotary motor (410) and a prism (420). The rotary motor (410) is mounted on the top of the base plate (110), and the prism (420) is mounted on the output end of the rotary motor (410). The horizontal rotation center of the prism (420) is located on the transverse center line of the base plate (110).

5. The track center detection instrument according to claim 1, characterized in that, The obstacle avoidance warning control component (500) includes a control module (510), an obstacle avoidance radar (520), a camera (530), and a warning light (540). The control module (510) is installed on the top of the base plate (110). The obstacle avoidance radar (520) and the camera (530) are connected to a mounting post (210) on one side, and the warning light (540) is connected to a mounting post (210) on the other side.

Images