Railway track inspection instrument and method of use thereof

Abstract

The present invention provides a railway track inspection instrument and its use method. The instrument's gauge marking assembly includes a support plate and a connecting rod. The connecting rod moves in the same direction as the measuring wheel assembly. A rack is disposed on the lower side of the connecting rod. The support plate is fixed to the right end of the machine body. A half gear is disposed on the support plate and meshes with the rack. A coaxial upper full gear is fixed to one side of the half gear. Lower full gears are disposed on the support plates below the upper full gear. A timing belt is mounted on the outer sides of the upper full gear and the two lower full gears. A first through-hole is disposed in the timing belt between the two lower full gears. A spacer belt is fixed in the middle of the first through-hole. A spray head is disposed on the support plate above the first through-hole. A spacer plate is disposed between the spray head and the first through-hole. Spray holes are disposed on the spacer plate at positions corresponding to the first through-hole. The present invention uses only one color to determine whether the track gauge is increasing or decreasing, and the degree of increase or decrease, based on the marking.

Description

Technical Field

[0001] The present invention relates to the technical field of track detection marking, and in particular to a railway track inspection instrument and a method for using the same. Background Art

[0002] After the railway track is laid, it needs to be inspected to determine whether the track laying, such as the track gauge, meets the requirements. After the track is put into use, it is necessary to conduct track inspections regularly, and the inspections involve the track gauge, track levelness, etc. Patent document CN212500409U discloses a lightweight track detection device, which includes a track gauge detection device for detecting the track gauge, an inclination sensor for detecting the levelness of the track detection device, and an industrial computer for processing the detection data. Although the portability of the track detection device is improved, it cannot simultaneously mark the track gauge and other parts that need maintenance. It is often necessary to pause the detection device and then mark the track, which easily reduces the efficiency of the detection.

[0003] Patent document CN110983884B discloses a track gauge detection device for rail laying that can achieve precise marking. When the rail deviates to the left or right side of the guide rail area, the rail lifts up the adjustment block except for the sealing head inside the marking port. The adjustment block compresses the spring inside the marking port, and the pigment inside the marking tube enters the ink outlet through the marking port, and then is marked on the rail through the absorbent cotton inside the ink outlet. Although this structure can mark the track gauge changes in real time, the mark cannot distinguish whether the track gauge increases or decreases, nor can it distinguish the degree of increase or decrease; in addition, it cannot simultaneously mark the changes in the track levelness. The methods of distinguishing whether the track gauge increases or decreases involved in existing documents are mostly to use different colors of pigments for marking, but they cannot distinguish the degree of increase or decrease. Summary of the Invention

[0004] The present invention provides a railway track inspection instrument and a method for using the same. The instrument uses only one color to determine whether the track gauge increases or decreases, and the degree of increase or decrease according to a mark.

[0005] The technical solution of the present invention is implemented as follows: a railway track inspection instrument includes a fuselage, a running wheel assembly is provided at the left end of the fuselage, a linear displacement sensor and a transversely sliding measuring wheel assembly are provided at the right end, the linear displacement sensor and the measuring wheel assembly are connected through a universal head, the measuring wheel assembly is connected to the track gauge marking assembly, the track gauge marking assembly includes a support plate and a connecting rod, the connecting rod slides in the same direction as the measuring wheel assembly, a rack is provided on the lower side of the connecting rod, the support plate is fixed to the right end of the fuselage, a half gear meshing with the rack is provided on the support plate, and the half gear A coaxial upper full gear is fixed on one side, and lower full gears are provided on the support plates on both sides below the upper full gear. A synchronous belt is provided on the outer sides of the upper full gear and the two lower full gears, and a first through hole is provided on the synchronous belt between the two lower full gears. A spacer belt is fixed in the middle of the first through hole, and the spacer belt is arranged along the traveling direction of the measuring wheel assembly. A spray head is provided on the support plate on the upper side of the first through hole, and a spacer plate is provided between the spray head and the first through hole. A spray hole is provided on the spacer plate at a position corresponding to the first through hole, and the inner diameter of the spray hole is not larger than the first through hole.

[0006] Furthermore, an inclination sensor is provided on the fuselage, and an inclination marking assembly is provided on the support plate below the first through hole. The inclination marking assembly includes a base plate fixed to the support plate, and a second through hole is provided at a position on the base plate corresponding to the first through hole. The inner diameter of the second through hole is not smaller than the spray hole, and a downward inclination marking component is provided at the left end of one side of the second through hole, and an upward inclination marking component is provided at the right end of one side of the second through hole.

[0007] Furthermore, the down-tilt angle marker and the up-tilt angle marker both include a slide and a marker rod. The slide is fixed to one side of the first through hole, the marker rod is located on the upper side of the second through hole, and is arranged along the traveling direction of the measuring wheel assembly. One end of the marker rod moves along the slide, and the other end is located on the other side of the second through hole. The initial position of the marker rod is located on the outside of the end of the spray hole. A limiting rod is fixed to one end of the slide close to the middle of the second through hole, and a support spring is arranged between the limiting rod and the marker rod.

[0008] Furthermore, the width of the marker rod is smaller than the width of the spacing band, and there is a transverse gap between the moving area of ​​the marker rod and the moving area of ​​the spacing band.

[0009] Furthermore, the diameter of the upper full gear is greater than the diameter of the half gear.

[0010] Furthermore, a transverse chute is provided in the slideway, a transverse row of balls is provided on the inner wall of the transverse chute, and the end of the marking rod is placed in the transverse chute and abuts against the balls.

[0011] Furthermore, the measuring wheel assembly includes a fixed plate, a left support plate and a right support plate are fixed on the lower side of the fixed plate, a right main wheel is arranged between the left support plate and the right support plate, a right side wheel is arranged at the lower end of the left support plate, a guide rail is fixed at the right end inside the fuselage, the fixed plate moves along the guide rail through a slider, a vertical plate is fixed at the upper end of the fixed plate, a guide shaft is arranged at the left end of the vertical plate, and a compression spring is mounted on the guide shaft.

[0012] Furthermore, the running wheel assembly includes two left main wheels, which are respectively arranged on the front and rear sides of the left end of the fuselage, and a left side wheel is arranged on the fuselage to the right of the left main wheel.

[0013] A method for using a railway track inspection device comprises the following steps:

[0014] The traveling wheel assembly moves along the left track, and the measuring wheel assembly moves along the right track. The measuring wheel assembly slides laterally as the distance between the two tracks changes, and at the same time drives the rack to move. The movement of the rack drives the half gear and the upper full gear to rotate, thereby driving the spacing belt to move through the synchronous belt. The spray head marks the hole through the spray hole, and a first gap is formed at the position of the spacing belt in the mark. The change in the track gauge and the degree of change are judged according to the position of the first gap in the mark and the degree of deviation from the middle of the mark.

[0015] Furthermore, there is a deviation in the track height on the left and right sides, the fuselage causes the bottom plate to tilt, the marking rod of the downtilt angle marking part or the uptilt angle marking part moves from the end to the middle of the spray hole, and the spray head marks through the spray hole. A second gap is formed in the mark at the position corresponding to the marking rod. The height change of the track is judged according to the position of the second gap in the mark.

[0016] Beneficial effects of the present invention:

[0017] The track gauge marking assembly of the present invention moves in the same direction as the measuring group assembly through the cooperation of the rack, the half gear and the upper full gear, thereby driving the spacing belt to move through the synchronous belt. The relative position of the spacing belt and the spray hole is dynamically adjusted as the track gauge increases or decreases and the degree of change, so that the position of the first vacancy corresponding to the spacing belt in the formed mark is dynamically adjusted. Only one color is used to determine whether the track gauge increases or decreases, as well as the degree of increase or decrease, based on the mark.

[0018] The inclination marking assembly of the present invention adjusts the relative position of the marking rod and the spray hole according to the change of the inclination of the fuselage, and only uses one color to mark and distinguish whether the fuselage is tilted up or down; by setting the different widths of the marking rod and the spacing band, and separately setting the moving areas of the two, it is convenient to mark the inclination change and the gauge change at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic structural diagram of the railway track inspection device of the present invention;

[0021] Figure 2 It is a structural diagram of the longitudinal beam;

[0022] Figure 3 It is a structural diagram of the gauge marking assembly;

[0023] Figure 4 Schematic diagram of the structure of the partition plate;

[0024] Figure 5 It is a structural diagram of the inclination mark component;

[0025] Figure 6 The diagram shows the track gauge changes, (a) no track gauge change, (b) track gauge increase, (c) track gauge decrease;

[0026] Figure 7 The diagram shows the change of fuselage inclination angle, (a) the right end of the fuselage is tilted downward, (b) the right end of the fuselage is tilted upward;

[0027] Figure 8 The diagrams are marked with changes in both the track gauge and the fuselage inclination angle, (a) the right end of the fuselage is tilted downward and the track gauge increases, (b) the right end of the fuselage is tilted upward and the track gauge increases.

[0028] Crossbeam 1, longitudinal beam 2, left main wheel 3, left side wheel 4, linear displacement sensor 5, fixed plate 6, right main wheel 7, right side wheel 8, guide rail 9, vertical plate 10, guide shaft 11, limit block 12, compression spring 13, support plate 14, connecting rod 15, rack 16, half gear 17, upper full gear 18, lower full gear 19, synchronous belt 20, first through hole 21, horizontal support block 22, spacer belt 23, spray head 24, paint box 25, spacer plate 26, spray hole 27, first vacancy 28, inclination sensor 29, bottom plate 30, second through hole 31, lower inclination angle marker 32, upper inclination angle marker 33, slideway 34, marking rod 35, horizontal slide groove 36, ball 37, limit rod 38, support spring 39, second vacancy 40. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0030] Example 1

[0031] like Figure 1 and 2 As shown, a railway track inspection instrument includes a fuselage, which includes a crossbeam 1. A longitudinal beam 2 is fixed to the left end of the crossbeam 1. A walking assembly is provided on the longitudinal beam 2. The walking wheel assembly includes two left main wheels 3. The two left main wheels 3 are respectively installed on the front and rear sides of the longitudinal beam 2. A left side wheel 4 is installed on the longitudinal beam 2 to the right of the left main wheel 3. The left side wheel 4 is located below the left main wheel 3. The left main wheel 3 moves along the upper side of the track, and the left side wheel 4 moves along the inner side of the track.

[0032] like Figure 1 and 3 As shown, a linear displacement sensor 5 and a sliding measuring wheel assembly are provided at the right end of the crossbeam 1. The measuring wheel assembly includes a fixed plate 6. A left support plate and a right support plate are fixed on the lower side of the fixed plate 6. A right main wheel 7 is installed between the left support plate and the right support plate. A right wheel 8 is installed at the lower end of the left support plate. A guide rail 9 is fixed to the right end in the fuselage. The fixed plate 6 moves laterally along the guide rail 9 through a slider. A vertical plate 10 is fixed to the upper end of the fixed plate 6. A horizontal guide shaft 11 is fixed to the left end of the vertical plate 10. A limit block 12 is also fixed in the fuselage. The left end of the guide shaft 11 slides through the limit block 12. A compression spring 13 is mounted on the guide shaft 11 between the limit block 12 and the vertical plate 10. The linear displacement sensor 5 is connected to the vertical plate 10 through a universal head (not shown). The right main wheel 7 moves along the upper side of the track. The setting of the compression spring 13 ensures that the right wheel 8 always moves closely along the inner side of the track. The linear displacement sensor 5 is connected to the vertical plate 10 through a universal head to avoid the deviation of the measuring wheel assembly during the measurement process, which causes the telescopic rod of the linear displacement sensor 5 to be deformed by force.

[0033] The measuring wheel assembly is connected to the gauge marking assembly, e.g. Figure 3As shown, the gauge marking assembly includes a support plate 14 and a connecting rod 15. The connecting rod 15 is fixedly connected to the right end of the vertical plate 10 and moves in the same direction as the measuring wheel assembly. A rack 16 is fixed to the lower side of the connecting rod 15. The support plate 14 is fixed to the right end of the fuselage. A half gear 17 is mounted on the support plate 14 through a bearing. The half gear 17 is located on the lower side of the rack 16 and meshes with the rack 16. A coaxial upper full gear 18 is fixed to one side of the half gear 17. Lower full gears 19 are mounted on the support plates 14 on both sides below the upper full gear 18 through bearings. The diameters of the upper full gear 18 and the lower full gear 19 are the same and both are larger than the diameter of the half gear 17. A synchronous belt 20 is mounted on the outer side of the upper full gear 18 and the two lower full gears 19. The lateral movement of the measuring wheel assembly drives the lateral movement of the rack 16. The cooperation of the rack 16, the half gear 17 and the upper full gear 18 drives the movement of the synchronous belt 20. The diameter of the upper full gear 18 is larger than that of the half gear 17, which makes it convenient to amplify the lateral movement distance of the measuring wheel assembly through the synchronous belt 20, thereby increasing the movement distance of the subsequent spacer belt 23, making it convenient to observe the change in track gauge. The setting of the half gear 17 makes it convenient to limit the movement distance of the spacer belt 23.

[0034] like Figure 3 and 4 As shown, a synchronous belt 20 is positioned horizontally between the two lower full gears 19, and a first through-hole 21 is provided in this section of synchronous belt 20. Horizontal support blocks 22 are also fixed to the support plates 14 on either side of the first through-hole 21. Horizontal support blocks 22 are located on the underside of the synchronous belt 20 and support the synchronous belt 20 to ensure horizontal movement. A spacer belt 23 is fixed in the middle of the first through-hole 21, extending along the travel direction of the measuring wheel assembly. A spray head 24 is fixed to the support plate 14 above the first through-hole 21. The spray head 24 is connected to a paint box 25, which is secured to the machine body. An industrial computer is also secured to the machine body. Both the linear displacement sensor 5 and the spray head 24 are connected to the industrial computer. When the linear displacement sensor 5 detects lateral sliding of the measuring wheel assembly, the industrial computer controls the spray head 24 to open and spray paint.

[0035] A spacer plate 26 is fixed on the support plate 14 between the spray head 24 and the first through hole 21. A spray hole 27 is provided on the spacer plate 26 at a position corresponding to the first through hole 21. The spray hole 27 and the first through hole 21 are both long strip holes. The inner diameter (length and width) of the spray hole 27 is not larger than the first through hole 21, and the spacer band 23 is located in the middle of the spray hole 27.

[0036] A method for using a railway track inspection device comprises the following steps:

[0037] Taking the left track as a reference, the traveling wheel assembly travels along the left track, and the measuring wheel assembly travels along the right track. The measuring wheel assembly slides laterally as the distance between the tracks on both sides (track gauge) changes. If the track gauge increases, the measuring wheel assembly moves laterally to the right. If the track gauge decreases, the measuring wheel assembly moves laterally to the left. The lateral movement of the measuring wheel assembly drives the rack 16 to move, and the movement of the rack 16 drives the half gear 17 and the upper full gear 18 to rotate. The rotation of the upper full gear 18 drives the synchronous belt 20 to move, thereby driving the spacing belt 23 to move through the synchronous belt 20.

[0038] The spray head 24 makes a mark through the spray hole 27, and a first gap 28 is formed at the position of the mark corresponding to the spacing band 23. The change in the track gauge and the degree of change are judged based on the position of the first gap 28 in the mark and the degree of deviation from the middle of the mark.

[0039] Specifically: if the track gauge increases, the measuring wheel assembly moves horizontally to the right, and the rack 16 moves to the right. The rack 16 moves to the right, driving the half gear 17 and the full gear to rotate clockwise, and the synchronous belt 20 moves clockwise, thereby driving the spacing belt 23 to move to the left. The spray head 24 makes a mark through the spray hole 27. There is a first gap 28 at the position of the spacing belt 23 on the left side of the mark. The greater the increase in the track gauge, the further the first gap 28 deviates from the left side of the mark. If the track gauge decreases, the rack 16 moves to the left, and the synchronous belt 20 drives the spacing belt 23 to the right. There is a first gap 28 at the position of the spacing belt 23 on the right side of the mark. The greater the decrease in the track gauge, the further the first gap 28 deviates from the right side of the mark. Therefore, if Figure 6 As shown, the method for judging the size change and degree of change of the track gauge is as follows: if the first gap 28 is located to the left of the middle of the mark, the track gauge increases, and the farther the distance deviates from the middle of the mark, the more the track gauge increases; if the first gap 28 is located to the right of the middle of the mark, the track gauge decreases, and the farther the distance deviates from the middle of the mark, the more the track gauge decreases.

[0040] Example 2

[0041] This embodiment is basically the same as embodiment 1, except that Figure 1 As shown, a tilt sensor 29 is also installed on the fuselage, and the tilt sensor 29 is connected to the industrial computer. When the tilt sensor 29 detects that the fuselage is tilted, the industrial computer controls the spray head 24 to open and spray paint; when at least one of the tilt sensor 29 and the linear displacement sensor 5 detects a data change, the industrial computer opens the spray head 24 for marking.

[0042] like Figure 3 and 5As shown, an inclination marking assembly is provided on the support plate 14 below the first through hole 21, and the inclination marking assembly includes a base plate 30 fixed to the support plate 14, and a second through hole 31 is provided at a position corresponding to the first through hole 21 on the base plate 30. The second through hole 31 is a long strip hole, and the inner diameter (length and width) of the second through hole 31 is not less than the spray hole 27. A downward inclination marking member 32 is provided at the left end of one side of the second through hole 31, and an upward inclination marking member 33 is provided at the right end of one side of the second through hole 31, such that the downward inclination marking member 32 is located on the front side of the second through hole 31, and the upward inclination marking member 33 is located on the rear side of the second through hole 31, or both are located on the front side or the rear side of the second through hole 31.

[0043] like Figure 5 As shown, the inclination angle marker 32 and the inclination angle marker 33 both include a slide 34 and a marker rod 35. The slide 34 is transversely fixed to one side of the first through hole 21, and the marker rod 35 is located on the upper side of the second through hole 31 and is arranged along the traveling direction of the measuring wheel assembly. A transverse slide groove 36 is provided in the slide 34, and a horizontal row of balls 37 is provided on the inner wall of the transverse slide groove 36. One end of the marker rod 35 is placed in the transverse slide groove 36 and is against the balls 37. The other end of the marker rod 35 is located on the other side of the second through hole 31. The initial position of the marker rod 35 is located on the outside of the end of the spray hole 27. A limiting rod 38 is fixed to one end of the slide 34 close to the middle of the second through hole 31, and a support spring 39 is provided between the limiting rod 38 and the marker rod 35. The setting of the ball ensures that the marking rod 35 slides smoothly along the slide 34 to avoid jamming; the setting of the support spring 39 ensures that the fuselage is tilted, the marking rod 35 slides, and the support spring 39 is compressed. On the one hand, it is used to support and limit the moving distance of the marking rod 35, and on the other hand, when the fuselage returns to the horizontal state, the support spring 39 drives the marking rod 35 to reset.

[0044] When the track heights on the left and right sides deviate, the fuselage will tilt. The tilt angle is detected by the inclination sensor 29. The fuselage drives the bottom plate 30 to tilt. The marking rod 35 of the lower inclination marking member 32 or the upper inclination marking member 33 moves from the end to the middle of the spray hole 27. The spray head 24 marks through the spray hole 27. There is a second gap 40 in the mark corresponding to the position of the marking rod 35. According to the position of the second gap 40 in the mark, the height change of the track is judged. The judgment method is as follows: Figure 7 As shown, if the second gap 40 is located near the left end of the mark, it means that the marking rod 35 of the downward inclination marking member 32 has slid, and the right end of the fuselage is tilted downward; if the second gap 40 is located near the right end of the mark, it means that the marking rod 35 of the upward inclination marking member 33 has slid, and the right end of the fuselage is tilted upward.

[0045] The width of the marking rod 35 is smaller than the width of the spacing band 23, which facilitates the distinction between the first gap 28 and the second gap 40; there is a lateral gap between the moving area of ​​the marking rod 35 and the moving area of ​​the spacing band 23; for example, the lateral moving area of ​​the marking rod 35 and the spacing band 23 are both smaller than 1 / 4 of the lateral length of the spray hole 27, or the lateral moving area of ​​the marking rod 35 is smaller than 0.2 of the lateral length of the spray hole 27, and the spacing band 23 is smaller than 0.3, etc., to ensure that the first gap 28 and the second gap 40 do not overlap, affecting the marking effect, and also facilitate the distinction between the first gap 28 and the second gap 40 based on their positions. Figure 8 As shown, if the track gauge and height of the tracks on both sides change: if the track gauge increases and the right end of the fuselage tilts downward, a first gap 28 and a second gap 40 will appear on the left side of the middle part of the mark, with the first gap 28 close to the middle position of the mark and the second gap 40 close to the left end of the mark; if the track gauge increases and the right end of the fuselage tilts upward, a first gap 28 will appear on the left side of the middle part of the mark and a second gap 40 will appear near the right end of the mark.

[0046] 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 in the scope of protection of the present invention.

Claims

1. A railway track inspection instrument, comprising a body, a running wheel assembly provided at the left end of the body, and a linear displacement sensor and a transversely sliding measuring wheel assembly provided at the right end, characterized in that: The linear displacement sensor and the measuring wheel assembly are connected through a universal head, and the measuring wheel assembly is connected to the gauge mark assembly. The gauge mark assembly includes a support plate and a connecting rod. The connecting rod slides in the same direction as the measuring wheel assembly. A rack is provided on the lower side of the connecting rod. The support plate is fixed to the right end of the fuselage. A half gear meshing with the rack is provided on the support plate. A coaxial upper full gear is fixed on one side of the half gear. Lower full gears are provided on the support plates on both sides below the upper full gear. A synchronous belt is provided on the outer sides of the upper full gear and the two lower full gears. A first through hole is provided on the synchronous belt between the two lower full gears, and a spacer belt is fixed in the middle of the first through hole. The spacer belt is arranged along the traveling direction of the measuring wheel assembly. A spray head is provided on the support plate above the first through hole, and a spacer plate is provided between the spray head and the first through hole. A spray hole is provided at the position corresponding to the first through hole on the spacer plate, and the inner diameter of the spray hole is not larger than the first through hole.

2. The railway track inspection device according to claim 1, characterized in that: An inclination sensor is also provided on the fuselage, and an inclination marking assembly is provided on the support plate below the first through hole. The inclination marking assembly includes a base plate fixed on the support plate, and a second through hole is provided at a position on the base plate corresponding to the first through hole. The inner diameter of the second through hole is not less than the spraying hole, and a downward inclination marking piece is provided at the left end of one side of the second through hole, and an upward inclination marking piece is provided at the right end of one side of the second through hole.

3. The railway track inspection device according to claim 2, characterized in that: The down-angle marker and the up-angle marker both include a slide and a marker rod. The slide is laterally fixed to one side of the first through hole. The marker rod is located on the upper side of the second through hole and is arranged along the traveling direction of the measuring wheel assembly. One end of the marker rod moves along the slide and the other end is located on the other side of the second through hole. The initial position of the marker rod is located on the outside of the end of the spray hole. A limit rod is fixed to one end of the slide close to the middle of the second through hole, and a support spring is arranged between the limit rod and the marker rod.

4. The railway track inspection device according to claim 3, characterized in that: The width of the marker rod is smaller than the width of the spacing belt, and there is a transverse gap between the moving area of ​​the marker rod and the moving area of ​​the spacing belt.

5. The railway track inspection device according to claim 1, characterized in that: The diameter of the upper full gear is larger than the diameter of the half gear.

6. A railway track inspection device according to claim 3 or 4, characterized in that: A transverse chute is provided in the slideway, a horizontal row of balls is provided on the inner wall of the transverse chute, and the end of the marking rod is placed in the transverse chute and against the balls.

7. The railway track inspection device according to claim 1, characterized in that: The measuring wheel assembly includes a fixed plate, a left support plate and a right support plate are fixed on the lower side of the fixed plate, a right main wheel is arranged between the left support plate and the right support plate, a right wheel is arranged at the lower end of the left support plate, a guide rail is fixed at the right end inside the fuselage, the fixed plate moves along the guide rail through a slider, a vertical plate is fixed at the upper end of the fixed plate, a guide shaft is arranged at the left end of the vertical plate, and a compression spring is mounted on the guide shaft.

8. The railway track inspection device according to claim 1, characterized in that: The running wheel assembly includes two left main wheels, which are respectively arranged on the front and rear sides of the left end of the fuselage, and a left side wheel is arranged on the fuselage to the right of the left main wheel.

9. The method for using the railway track inspection device according to any one of claims 1 to 8, characterized in that: The following steps are involved: The traveling wheel assembly moves along the left track, and the measuring wheel assembly moves along the right track. The measuring wheel assembly slides laterally as the distance between the two tracks changes, and at the same time drives the rack to move. The movement of the rack drives the half gear and the upper full gear to rotate, thereby driving the spacing belt to move through the synchronous belt. The spray head marks the hole through the spray hole, and a first gap is formed at the position of the spacing belt in the mark. The change in the track gauge and the degree of change are judged according to the position of the first gap in the mark and the degree of deviation from the middle of the mark.

10. The method of use according to claim 9, characterized in that: There is a deviation in the track height on the left and right sides, and the fuselage causes the bottom plate to tilt. The marking rod of the downtilt angle marker or the uptilt angle marker moves from the end to the middle of the spray hole, and the spray head marks through the spray hole. A second gap is formed in the mark at the position corresponding to the marking rod. The height change of the track is judged according to the position of the second gap in the mark.

Images