Track gauge ruler for track precision and method for moving track gauge ruler

Abstract

The present application relates to the technical field of track fine adjustment, and particularly relates to a track fine adjustment gauge and a gauge displacement method, which comprises a gauge body, a moving seat, a spring piece, a magnetic wheel and a motor, one moving seat is arranged on each side of the two ends of the gauge body, one magnetic wheel is rotatably arranged on the bottom of each moving seat, the magnetic wheel and the steel rail are magnetically attracted, one motor is fixedly arranged on the side of each moving seat, the motor is used for driving the magnetic wheel to roll on the steel rail, so that the moving seat pushes or pulls the gauge body to move on the steel rail, the motor is arranged to drive the magnetic wheel to roll on the steel rail, so that the moving seat pushes or pulls the gauge body to move on the steel rail, the automatic displacement of the gauge body is realized, the labor intensity of the measurer is reduced, and the efficiency of fine adjustment operation is improved.

Description

Technical Field

[0001] This invention relates to the field of track fine-tuning technology, and in particular to a track fine-tuning method for using a track gauge ruler and a method for shifting the track gauge ruler. Background Technology

[0002] Ballastless track fine-tuning refers to the precise adjustment of the track on ballastless railway tracks to ensure the safety and comfort of train operation. This includes precise adjustments to the track elevation, gauge, and surface flatness to meet the requirements of train operation. The equipment required for ballastless track fine-tuning includes turnout adjusting machines, high-frequency grinding machines, track gauges, and track calipers. Among them, the track gauge is used to measure the geometric parameters of the track, such as gauge, track height, and track surface inclination, in order to make adjustments and fine-tuning.

[0003] When using a track gauge, first remove any debris and dirt from the measuring points on the rails. After turning on the machine, place the fixed end inside one rail, retract the measuring head, and insert it into the other rail. Move it slightly left and right to find the minimum track gauge reading. At this point, observe the track gauge and horizontal display values ​​on the screen. During measurement, the measuring worker needs to bend over and place the track gauge at each measuring point.

[0004] The utility model disclosed in CN212409669U is an electronic track gauge, including a bracket, a display screen disposed on the top of the main body, and a displacement sensor that is communicatively connected to the display screen. The bottom end of the bracket is provided with symmetrical contact layers, and the ends of the contact layers are respectively provided with movable blocks and fixed blocks.

[0005] As described above, when used for fine-tuning of ballastless tracks, it requires surveyors to move the gauge ruler and bend over to place it at each measurement point. This undoubtedly increases the labor intensity of the surveyors and reduces the efficiency of the fine-tuning operation. Summary of the Invention

[0006] In view of this, the present invention proposes a method for adjusting track gauge and shifting track gauge. It uses a motor to drive a magnetic wheel to roll on the rail, so that the moving seat pushes or pulls the gauge body to move on the rail, realizing automatic shifting of the gauge body, reducing the labor intensity of surveyors and improving the efficiency of fine adjustment.

[0007] The technical solution of this invention is implemented as follows:

[0008] On one hand, the present invention provides a track gauge ruler for precise track adjustment, comprising a ruler body, wherein,

[0009] The ruler is placed on the steel rail of the ballastless track;

[0010] It also includes a movable base, spring components, magnetic wheels, and a motor, among which,

[0011] The movable seat is provided on each side of both ends of the ruler body, and the movable seat is located above the rail.

[0012] One spring is provided at each of the movable seats. The spring is parallel to the rail. One end of the spring is slidably disposed vertically on the side end of the corresponding movable seat, and the other end is detachably disposed on the side end of the corresponding ruler.

[0013] Each of the magnetic wheels is rotatably disposed at the bottom of each of the movable seats, and the magnetic wheels and the rails are magnetically attracted to each other.

[0014] One motor is fixedly installed on the side of each of the movable seats. The output end of the motor is shaft-connected to one end of the corresponding magnetic wheel. The motor is used to drive the magnetic wheel to roll on the rail, so that the movable seat pushes or pulls the ruler body to move on the rail.

[0015] Based on the above technical solution, preferably, the bottom of the movable base is provided with a groove, and the side of the movable base is provided with a countersunk hole corresponding to the position of the groove, and a connecting hole is provided between the groove and the countersunk hole, wherein,

[0016] The countersunk hole and the connecting hole are concentric;

[0017] One end of the magnetic wheel is rotatably mounted on the groove wall of the groove, and the other end passes through the connecting hole. An internal spline is provided on the end of the magnetic wheel that passes through the connecting hole.

[0018] One end of the motor is fixedly disposed in the countersunk hole, and an external spline is provided on the output end of the motor, the external spline and the internal spline being connected.

[0019] Based on the above technical solutions, preferably, the magnetic wheel includes a central shaft, a rubber wheel, and several permanent magnets, wherein,

[0020] One end of the central shaft is rotatably mounted on the groove wall of the groove, and the other end passes through the connecting hole. The internal spline is located on the end of the central shaft that passes through the connecting hole.

[0021] One rubber wheel is fixedly installed at each end of the central shaft, and the rubber wheel is located inside the groove. The rubber wheel and the central shaft are concentric, and the diameter of the rubber wheel is larger than the diameter of the central shaft. The rubber wheel abuts against the top of the rail.

[0022] A plurality of permanent magnets are disposed between the two rubber wheels and arranged in a ring array around the central shaft. The permanent magnets are embedded in the side of the central shaft, and one end of the permanent magnets is aligned with the side surface of the central shaft.

[0023] Based on the above technical solutions, preferably, the spring component includes a U-shaped groove, a thumbscrew, a dovetail groove, a slider, and a spring, wherein,

[0024] The U-shaped groove is fitted onto the top of the ruler body;

[0025] One end of the hand-tightening screw passes through the side end of the U-shaped groove and is screwed in; the end of the hand-tightening screw passing through the U-shaped groove abuts against the side end of the ruler body.

[0026] The dovetail groove is fixedly installed on the side end of the movable base;

[0027] The slider is vertically slidable in the dovetail groove;

[0028] One end of the spring is fixedly connected to the end of the slider away from the movable seat, and the other end is fixedly connected to the end of the U-shaped groove away from the hand-tightening screw.

[0029] Based on the above technical solutions, preferably, the width of the U-shaped groove in the horizontal direction is greater than the thickness of the ruler body in the horizontal direction.

[0030] Based on the above technical solutions, preferably, it also includes two limiting wheels, wherein,

[0031] The two limiting wheels are rotatably disposed on one side of the bottom of the movable seat, and the two limiting wheels abut against the side end of the rail;

[0032] The virtual connecting line between the centers of the two limiting wheels is parallel to the rail.

[0033] Based on the above technical solutions, preferably, it also includes a power supply and a push-button switch, wherein,

[0034] The power supply is fixedly mounted on the top of the movable base located at one end of the ruler body;

[0035] Both the push-button switch and the motor are connected to the power source via cables.

[0036] Based on the above technical solutions, preferably, the power source includes a battery box, a box cover, a battery, and a handle, wherein,

[0037] The battery box is fixedly mounted on the top of the movable base;

[0038] The cover is hinged to the side of the battery compartment;

[0039] The battery is removably disposed in the battery compartment;

[0040] The handle is fixedly mounted on the top of the battery compartment;

[0041] The push-button switch, the motor, and the battery are connected in series.

[0042] Based on the above technical solutions, preferably, the cables connecting the push-button switch and the motor to the power supply are both spring cables.

[0043] On the other hand, the present invention also provides a method for shifting a track gauge, applied to the above-mentioned track gauge adjustment, comprising the following steps:

[0044] S1. Install the ruler body on the rail, and place a movable seat on the rail at each end of the ruler body. When placing the seat, make the two limiting wheels simultaneously abut against the side end of the rail, so that the magnetic wheel is magnetically attracted to the top of the rail.

[0045] S2. Slide the slider into the dovetail groove and adjust the height of the slider so that the U-shaped groove fits onto the ruler body. Tighten the hand screw so that one end abuts against the side of the ruler body and fix the U-shaped groove onto the ruler body.

[0046] S3. The surveyor is positioned between the rails and holds the button switch. When the button switch is pressed, the battery supplies power to the motor. The output of the motor drives the magnetic wheel to roll on the rail. Through the rolling, the moving seat pushes or pulls the ruler to the measurement point on the rail. The surveyor then follows the ruler as it walks between the rails.

[0047] S4. When the ruler reaches the measurement point, stop pressing the button switch, the motor is powered off, the ruler is stationary at the measurement point, and after taking the reading, press the button switch again to make the moving seat push or pull the ruler to the next measurement point. Repeat steps S3-S4 to move to another measurement point.

[0048] The track gauge adjustment method and track gauge displacement method of the present invention have the following advantages over the prior art:

[0049] (1) By setting a motor to drive the magnetic wheel to roll on the rail, the moving seat pushes or pulls the ruler to move on the rail, realizing the automatic displacement of the ruler, reducing the labor intensity of the surveyors, improving the efficiency of fine adjustment, and the magnetic wheel magnetically adsorbs the rail, making the displacement relatively stable.

[0050] (2) By setting spring components, the elastic connection between the moving seat and the ruler is realized, so that the force of the moving seat when pushing or pulling the ruler is gentle and it is not easy to cause the ruler to deviate.

[0051] (3) By setting one end of the spring to slide vertically on the side of the corresponding movable seat, it is easy to adjust the height of the spring and adapt to the use of rulers of different heights. At the same time, by setting the width of the U-shaped groove in the horizontal direction to be greater than the thickness of the ruler in the horizontal direction, it is easy to adapt to the installation and use of rulers of different diameters.

[0052] (4) By setting the other end of the spring member to be detachably set on the side end of the corresponding ruler body, it is convenient to add a moving seat to the gauge ruler that has already been put into use, and the applicability is wide. Attached Figure Description

[0053] 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 these drawings without creative effort.

[0054] Figure 1 A perspective view of a track gauge ruler for precise track adjustment according to the present invention;

[0055] Figure 2 This is a top view of a track gauge ruler for precise track adjustment according to the present invention;

[0056] Figure 3 This is a first-view perspective view of the power supply of the present invention.

[0057] Figure 4 This is a perspective view of the power supply location of the present invention from another angle;

[0058] Figure 5 This is a perspective view of the limiting wheel of the present invention;

[0059] Figure 6 This is a perspective view of the movable base of the present invention;

[0060] Figure 7 This is a schematic diagram of the connection structure between the motor and the magnetic wheel of the movable seat of the present invention;

[0061] Figure 8 This is a perspective view of the magnetic wheel of the present invention;

[0062] Figure 9 This is a schematic diagram of the connection structure between the spring and the movable seat of the present invention;

[0063] Figure 10 This is a perspective view of the power supply of the present invention;

[0064] Figure 11 This is a partial perspective view of the present invention;

[0065] Figure 12 This is a layout diagram of the electrical components of the present invention;

[0066] In the diagram: 1. Ruler body; 2. Movable base; 3. Spring component; 4. Magnetic wheel; 5. Motor; 6. Power supply; 7. Push-button switch; 8. Limit wheel; 31. U-shaped groove; 32. Hand screw; 33. Dovetail groove; 34. Slider; 35. Spring; 41. Central shaft; 42. Rubber wheel; 43. Permanent magnet; 61. Battery box; 62. Box cover; 63. Battery; 64. Handle; 201. Groove; 202. Countersunk hole; 203. Connecting hole; 401. Internal spline; 501. External spline. Detailed Implementation

[0067] The technical solutions of this invention will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0068] like Figure 1-12 As shown, this invention provides a precision track gauge, comprising a gauge body 1, which is an electronic track gauge. In use, first remove any debris or dirt from the measuring points on the rails. The rails are double-rail. After powering on, place the fixed end inside one rail, retract the measuring head, and insert it into the inside of the other rail. Slightly move it left and right to find the minimum track gauge value. Then observe the track gauge and horizontal readings on the screen. Afterward, keep the gauge body 1 placed on the ballastless track rails. To achieve automatic movement of the gauge body 1, a movable seat 2 is provided on each side of both ends of the gauge body 1, positioned above the rails. Each movable seat 2 is equipped with a spring element 3, which is parallel to the rail. One end of the spring element 3 is slidably mounted vertically on the side of the corresponding movable seat 2, and the other end is detachably mounted on the side of the corresponding ruler body 1. A magnetic wheel 4 is rotatably mounted at the bottom of each movable seat 2, and the magnetic wheel 4 is magnetically attracted to the rail. A motor 5 is fixedly mounted on the side of each movable seat 2. The output end of the motor 5 is shaft-connected to one end of the corresponding magnetic wheel 4. The motor 5 is used to drive the magnetic wheel 4 to roll on the rail, so that the movable seat 2 pushes or pulls the ruler body 1 to move on the rail.

[0069] Specifically, the spring component 3 includes a U-shaped groove 31, a hand-tightening screw 32, a dovetail groove 33, a slider 34, and a spring 35. The U-shaped groove 31 is fitted onto the top of the ruler body 1. One end of the hand-tightening screw 32 passes through the side end of the U-shaped groove 31 and is screwed in. The end of the hand-tightening screw 32 passing through the U-shaped groove 31 abuts against the side end of the ruler body 1. The dovetail groove 33 is fixedly installed on the side end of the movable seat 2. The slider 34 is slidably installed vertically in the dovetail groove 33. One end of the spring 35 is fixedly connected to the end of the slider 34 away from the movable seat 2, and the other end is fixedly connected to the end of the U-shaped groove 31 away from the hand-tightening screw 32. The width of the U-shaped groove 31 in the horizontal direction is greater than the thickness of the ruler body 1 in the horizontal direction, which facilitates the installation and use of ruler bodies 1 with different diameters.

[0070] In the above structure, after the motor 5 is powered on, its output shaft drives the magnetic wheel 4 to roll on the rail, so that the moving seat 2 pushes or pulls the ruler 1 to move on the rail, realizing the automatic displacement of the ruler 1, reducing the labor intensity of the surveyor, improving the efficiency of fine-tuning operations, and the magnetic attraction of the rail by the magnetic wheel 4 makes the displacement relatively stable. The elastic connection between the moving seat 2 and the ruler 1 is achieved by setting the spring 3, so that the force of the moving seat 2 pushing or pulling the ruler 1 is gentle and it is not easy to cause the ruler 1 to deviate. One end of the spring 3 is set vertically and is slidably set on the side end of the corresponding moving seat 2, which makes it easy to adjust the height of the spring 3 to adapt to the use of rulers 1 of different heights. The other end of the spring 3 is detachably set on the side end of the corresponding ruler 1, which makes it easy to add the moving seat 2 to the track gauge that has been put into use later, thus having a wide range of applications.

[0071] To further improve stability during displacement, two limiting wheels 8 are rotatably installed on one side of the bottom of the movable seat 2. The two limiting wheels 8 abut against the side of the rail. The virtual connecting line at the center of the two limiting wheels 8 is parallel to the rail. The limiting wheels 8 are used to guide the movement, making it less likely for the movable seat 2 to deviate during displacement.

[0072] To facilitate the installation of the motor 5, a groove 201 is provided at the bottom of the movable base 2, and a countersunk hole 202 is provided on the side of the movable base 2 at the position corresponding to the groove 201. A connecting hole 203 is provided between the groove 201 and the countersunk hole 202. The countersunk hole 202 and the connecting hole 203 are concentric. One end of the magnetic wheel 4 is rotatably mounted on the groove wall of the groove 201, and the other end passes through the connecting hole 203. An internal spline 401 is provided on the end of the magnetic wheel 4 that passes through the connecting hole 203. One end of the motor 5 is fixedly mounted in the countersunk hole 202, and an external spline 501 is provided on the output end of the motor 5. The external spline 501 and the internal spline 401 are connected.

[0073] Specifically, the magnetic wheel 4 includes a central shaft 41, rubber wheels 42, and several permanent magnets 43. One end of the central shaft 41 is rotatably mounted on the groove wall of the groove 201, and the other end passes through the connecting hole 203. An internal spline 401 is set on the end of the central shaft 41 that passes through the connecting hole 203. One rubber wheel 42 is fixedly mounted at each end of the central shaft 41, and the rubber wheels 42 are located inside the groove 201. The rubber wheels 42 and the central shaft 41 are concentric, and the diameter of the rubber wheels 42 is larger than the diameter of the central shaft 41. The rubber wheels 42 abut against the top of the rail. A permanent magnet 43 is disposed between two rubber wheels 42 and arranged in a ring around the central shaft 41. The permanent magnet 43 is embedded in the side of the central shaft 41, and one end of the permanent magnet 43 is aligned with the side surface of the central shaft 41. One end of the motor 5 with an output shaft is embedded in the groove 201. A set screw is screwed into the side of the groove 201. After the set screw passes through the side wall of the movable seat 2, it presses against the side of the motor 5, fixing the motor 5 in the groove 201. After the motor 5 is powered on, its output shaft drives the central shaft 41 to rotate, and the central shaft 41 drives the rubber wheels 42 to rotate.

[0074] As a preferred embodiment of a track gauge for precise track adjustment, it also includes a power supply 6 and a push-button switch 7. The power supply 6 is fixedly installed on the top of the movable base 2 located at one end of the gauge body 1, and the other movable base 2 is not equipped with a power supply 6. The push-button switch 7 and the motor 5 are both connected to the power supply 6 through cables. The power supply 6 is used to supply power to the motor 5, and the push-button switch 7 is used to control the on and off of the circuit.

[0075] Specifically, the power supply 6 includes a battery box 61, a cover 62, a battery 63, and a handle 64. The battery box 61 is fixedly mounted on the top of the movable base 2, the cover 62 is hinged to the side of the battery box 61, the battery 63 is detachably mounted inside the battery box 61, and the handle 64 is fixedly mounted on the top of the battery box 61. Figure 12 As shown, the push-button switch 7, motor 5, and battery 63 are connected in series.

[0076] To facilitate handheld use of the push-button switch 7, the cable connecting the push-button switch 7 to the power supply 6 is a spring cable. Furthermore, the push-button switch 7 is designed with an elongated oval shape. To facilitate the installation of the motor 5, the cable connecting the motor 5 to the power supply 6 is also a spring cable, making it convenient to install one of the motors 5 on a rail that is far from the power supply 6. The battery box 61 is equipped with a U-shaped buckle. When installing the battery 63, the battery 63 is inserted into the U-shaped buckle. When removing the battery 63, the battery 63 is pulled out from the inside of the U-shaped buckle. The positive and negative terminals of the battery 63 are equipped with quick-connect cable connectors for easy cable disassembly and installation.

[0077] The above-mentioned method for shifting the gauge includes the following steps:

[0078] S1. Install the ruler body 1 on the rail. Place a movable seat 2 on the rail at both ends of the ruler body 1. When placing the seat, make the two limiting wheels 8 simultaneously abut against the side of the rail, so that the magnetic wheel 4 is magnetically attracted to the top of the rail.

[0079] S2. Slide the slider 34 into the dovetail groove 33 and adjust the height of the slider 34 so that the U-shaped groove 31 fits onto the ruler body 1. Tighten the hand screw 32 so that one end of it abuts against the side of the ruler body 1 and fix the U-shaped groove 31 onto the ruler body 1.

[0080] S3. The surveyor is positioned between the rails and holds the button switch 7. When the button switch 7 is pressed, the battery 63 supplies power to the motor 5. The output of the motor 5 drives the magnetic wheel 4 to roll on the rail. Through the rolling, the moving seat 2 pushes or pulls the ruler 1 on the rail to the measurement point. The surveyor follows the ruler 1 and walks between the rails.

[0081] S4. When the ruler 1 reaches the measurement point, stop pressing the button switch 7, the motor 5 is powered off, the ruler 1 is stationary at the measurement point, after taking the reading, press the button switch 7 again to make the moving seat 2 push or pull the ruler 1 to the next measurement point, repeat steps S3-S4 to move to another measurement point.

[0082] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A track gauge for precision measurement, comprising a gauge body (1), wherein, The ruler (1) is placed on the rail of the ballastless track; Its features include: a movable base (2), a spring (3), a magnetic wheel (4), and a motor (5), wherein, The movable seat (2) is provided on each side of both ends of the ruler (1), and the movable seat (2) is located above the rail; One spring (3) is provided at each of the movable seats (2). The spring (3) is parallel to the rail. One end of the spring (3) is slidably disposed vertically on the side end of the corresponding movable seat (2), and the other end is detachably disposed on the side end of the corresponding ruler (1). One magnetic wheel (4) is rotatably installed at the bottom of each of the movable seats (2), and the magnetic wheel (4) and the rail are magnetically attracted to each other. One motor (5) is fixedly installed on the side of each of the movable seats (2). The output end of the motor (5) is shaft-connected to one end of the corresponding magnetic wheel (4). The motor (5) is used to drive the magnetic wheel (4) to roll on the rail so that the movable seat (2) pushes or pulls the ruler (1) to move on the rail. The spring component (3) includes a U-shaped groove (31), a thumb screw (32), a dovetail groove (33), a slider (34), and a spring (35), wherein, The U-shaped groove (31) is fitted onto the top of the ruler body (1); One end of the hand-tightening screw (32) passes through the side end of the U-shaped groove (31) and is screwed in; the end of the hand-tightening screw (32) passing through the U-shaped groove (31) abuts against the side end of the ruler body (1). The dovetail groove (33) is fixedly disposed on the side end of the movable seat (2); The slider (34) is vertically slidably disposed in the dovetail groove (33); One end of the spring (35) is fixedly connected to the end of the slider (34) away from the moving seat (2), and the other end is fixedly connected to the end of the U-shaped groove (31) away from the hand screw (32).

2. A track gauge ruler for precise track adjustment as described in claim 1, characterized in that: The bottom of the movable base (2) is provided with a groove (201), and the side of the movable base (2) is provided with a countersunk hole (202) corresponding to the position of the groove (201). A connecting hole (203) is provided between the groove (201) and the countersunk hole (202). The countersunk hole (202) and the connecting hole (203) are concentric; One end of the magnetic wheel (4) is rotatably mounted on the groove wall of the groove (201), and the other end passes through the connecting hole (203). An internal spline (401) is provided on the end of the magnetic wheel (4) that passes through the connecting hole (203). One end of the motor (5) is fixedly disposed in the countersunk hole (202), and an external spline (501) is provided on the output end of the motor (5), and the external spline (501) and the internal spline (401) are connected.

3. A track gauge ruler for precise track adjustment as described in claim 2, characterized in that: The magnetic wheel (4) includes a central shaft (41), a rubber wheel (42), and several permanent magnets (43), wherein, One end of the central shaft (41) is rotatably mounted on the groove wall of the groove (201), and the other end passes through the connecting hole (203). The internal spline (401) is mounted on the end of the central shaft (41) that passes through the connecting hole (203). One rubber wheel (42) is fixedly installed at each end of the central shaft (41), and the rubber wheel (42) is located inside the groove (201). The rubber wheel (42) and the central shaft (41) are concentric, and the diameter of the rubber wheel (42) is larger than the diameter of the central shaft (41). The rubber wheel (42) abuts against the top of the rail. A plurality of permanent magnets (43) are disposed between two rubber wheels (42) and arranged in a ring array around the central shaft (41). The permanent magnets (43) are embedded in the side of the central shaft (41), and one end of the permanent magnets (43) is aligned with the side surface of the central shaft (41).

4. A track gauge ruler for precise track adjustment as described in claim 3, characterized in that: The width of the U-shaped groove (31) in the horizontal direction is greater than the thickness of the ruler (1) in the horizontal direction.

5. A track gauge ruler for precise track adjustment as described in claim 4, characterized in that: It also includes two limit wheels (8), among which, The two limiting wheels (8) are rotatably disposed on one side of the bottom of the movable seat (2), and the two limiting wheels (8) abut against the side end of the rail; The virtual connecting line between the centers of the two limiting wheels (8) is parallel to the rail.

6. A track gauge ruler for precise track adjustment as described in claim 5, characterized in that: It also includes a power supply (6) and a push-button switch (7), wherein, The power supply (6) is fixedly installed on the top of the movable base (2) located at one end of the ruler (1); Both the push-button switch (7) and the motor (5) are connected to the power supply (6) via cables.

7. A track gauge ruler for precise track adjustment as described in claim 6, characterized in that: The power source (6) includes a battery compartment (61), a cover (62), a battery (63), and a handle (64), wherein, The battery box (61) is fixedly mounted on the top of the movable base (2); The cover (62) is hinged to the side of the battery box (61); The battery (63) is detachably disposed in the battery box (61); The handle (64) is fixedly mounted on the top of the battery box (61); The push-button switch (7), the motor (5), and the battery (63) are connected in series.

8. A track gauge ruler for precise track adjustment as described in claim 7, characterized in that: The cables connecting the push-button switch (7) and the motor (5) to the power supply (6) are both spring cables.

9. A method for shifting a track gauge, using a track precision gauge as described in claim 8, characterized in that: Includes the following steps: S1. Install the ruler (1) on the rail, and place a movable seat (2) on the rail at both ends of the ruler (1). When placing, make the two limiting wheels (8) simultaneously abut against the side end of the rail, and make the magnetic wheel (4) magnetically adsorbed on the top of the rail. S2. Slide the slider (34) into the dovetail groove (33) and adjust the height of the slider (34) so ​​that the U-shaped groove (31) fits on the ruler body (1). Tighten the hand screw (32) so that one end of it abuts against the side of the ruler body (1) and fix the U-shaped groove (31) on the ruler body (1). S3. The measuring personnel are positioned between the rails and hold the button switch (7). Press the button switch (7). At this time, the battery (63) supplies power to the motor (5). The output end of the motor (5) drives the magnetic wheel (4) to roll on the rail. Through rolling, the moving seat (2) pushes or pulls the ruler (1) on the rail to the measuring point. The measuring personnel follow the ruler (1) and walk between the rails. S4. When the ruler (1) reaches the measurement point, stop pressing the button switch (7), the motor (5) is powered off, the ruler (1) is stationary at the measurement point, and after reading the value, press the button switch (7) again to make the moving seat (2) push or pull the ruler (1) to the next measurement point. Repeat steps S3-S4 to move to another measurement point.

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