Parameter measuring device for harmful space of track turnout

Abstract

The utility model belongs to the field of railway capital construction, and discloses a parameter measuring device for a harmful space of a track turnout, which can perform accurate data measurement on the perpendicularity of wing rails so as to greatly simplify the perfect measurement operation of parameters of the harmful space, and comprises a wing rail straddle plate, a positioning unit and a measuring component, the positioning unit is arranged on a wing rail straddle and used for positioning the wing rail straddle relative to a track turnout, the measuring assembly comprises a driving lead screw, a guide straight rod, a movable sliding block and an infrared distance measuring sensor, and the driving lead screw and the guide straight rod are close to each other, are vertically arranged on the wing rail straddle and are vertically inserted into a harmful space; the movable sliding block is movably arranged on the driving lead screw, the guide straight rod penetrates through the movable sliding block, the number of the infrared distance measuring sensors is two, the two infrared distance measuring sensors are arranged on the movable sliding block and face the surfaces of the two sections of wing rails respectively, and the emission direction of the infrared distance measuring sensors is the horizontal direction.

Description

Technical Field

[0001] The utility model belongs to the field of railway infrastructure and discloses a parameter measuring device for harmful space of a track turnout. Background Art

[0002] A turnout is a line connection device that allows locomotives and vehicles to transfer from one track to another. It is usually laid in large quantities at stations and marshaling yards. With turnouts, the line's capacity can be fully utilized. Even for a single-track railway, laying turnouts and building a fork line that is longer than the length of the train can allow trains to run in opposite directions. Turnouts play an important role on railway lines. However, due to its function and structure, turnouts are also one of the weak links of the track.

[0003] The track has two wing rails at the turnout part to assist the train in guiding different travel directions, such as Figure 1 As shown, the space between the two wing rails is called the harmful space in the industry. When the train wheels pass through the turnout, if the gradual width of the harmful space and the verticality of the wing rail are not within a predetermined threshold, the train will easily fail to change direction or derail. Therefore, ensuring the width of the harmful space and the verticality of the wing rail is a very important guarantee indicator in railway infrastructure.

[0004] A Chinese utility model patent (CN218781723U) discloses a railway turnout frame measuring ruler, comprising a support rod, a slide rod and a pair of symmetrically arranged clips, wherein the slide rod is engraved with scale lines and is mounted on the support rod, and the slide rod slides along the length direction of the support rod; one of the clips is fixedly mounted on the lower end surface of the support rod, and the other clip is fixedly mounted on the lower end surface of the slide rod, the clip comprises a fixing frame and a roller, the roller is mounted in the fixing frame, the central axis of the roller is vertically arranged, and the outer contour of the axial cross section of the roller is adapted to the side contour of the base rail.

[0005] However, the above patent focuses only on the width of the harmful space, while in practice, the verticality of the wing rail is indispensable. Therefore, additional manual measurement of the verticality of the wing rail is required, which makes the complete measurement operation of the parameters of the harmful space relatively cumbersome. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides a parameter measuring device for the harmful space of a track turnout, which can accurately measure the verticality of the wing rail, thereby greatly simplifying the perfect measurement operation of the parameters of the harmful space.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A parameter measuring device for a harmful space of a track turnout, wherein the harmful space is formed between two sections of wing rails of the turnout, and is characterized in that it comprises: a wing rail cross plate, which is horizontally arranged, located directly above the track turnout and spanning the two sections of wing rails, and a positioning unit, which is arranged on the lower surface of the wing rail cross plate and is used to position the wing rail cross plate relative to the track turnout, wherein the parameter measuring device for the harmful space of the track turnout also comprises a measuring component, the measuring component comprises a driving screw, a guide straight rod, a moving slider and an infrared ranging sensor, the driving screw and the guide straight rod are close to each other, are vertically arranged on the wing rail cross plate, and are vertically inserted into the harmful space, the driving screw is rotatably arranged, the moving slider is movably arranged on the driving screw and the guide straight rod passes through the moving slider, the number of the infrared ranging sensors is two, the two infrared ranging sensors are respectively arranged on the opposite sides of the moving slider, and are respectively facing the surfaces of the two sections of wing rails, and the emission direction of the infrared ranging sensor is horizontal.

[0009] Preferably, the measuring assembly also includes a spring tape measure having a shell and a tape measure, the shell being fixed on the lower surface of the wing rail span, the tape measure being elastically contractibly passed through the shell, and the tape measure being vertical and having a free end fixed on the movable slider.

[0010] Preferably, the wing rail has a rail head, a rail waist and a rail bottom that are continuous from top to bottom, and the positioning unit includes two positioning abutment plates both arranged on the lower surface of the wing rail cross plate, the plate surfaces of the positioning abutment plates are respectively abutted against the side surfaces of the rail heads of the two sections of the wing rails, and the bottom surfaces are respectively supported on the upper surfaces of the rail bottoms of the two sections of the wing rails, so that the two positioning abutment plates clamp the two sections of the wing rails from the two outer sides of the two sections of the wing rails, and then the wing rail cross plate is positioned relative to the track switch.

[0011] Furthermore, the two positioning abutments are both arranged on the lower surface of the wing rail cross-plate through spring sleeves, and the extension direction and telescopic direction of the spring sleeves are both horizontal directions. There are four spring sleeves, and the two positioning abutments include a fixed abutment plate and a swing abutment plate. The two ends of the fixed abutment plate along the extension direction of the wing rail are respectively connected to the wing rail cross-plate through two spring sleeves, and the movable ends and elastic ends of the two spring sleeves are respectively fixed to the fixed abutment plate and the wing rail cross-plate; the two ends of the swing abutment plate along the extension direction of the wing rail are respectively connected to the wing rail cross-plate through two spring sleeves, and the movable end and elastic end of one spring sleeve are respectively fixed to the swing abutment plate and the wing rail cross-plate, and the movable end and elastic end of the other spring sleeve are respectively hinged to the swing abutment plate and the wing rail cross-plate.

[0012] Furthermore, a track rolling wheel is rotatably arranged near the bottom end of the positioning plate, and the track rolling wheels of the two positioning plates are arranged facing each other, the track rolling wheel is in rolling contact with the waist surface of the wing rail, and the rolling direction of the track rolling wheel is the extension direction of the wing rail.

[0013] Preferably, the measuring assembly also includes a driving motor and a reduction gear pair, the driving motor drives the reduction gear pair to mesh and rotate, the output of the reduction gear pair is fixedly connected to the driving screw, and two gripping handles are respectively formed at both ends of the upper surface of the wing rail cross plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. Because the parameter measuring device of the harmful space of the track turnout of the utility model comprises a wing rail span plate, a positioning unit and a measuring assembly, the wing rail span plate spans two sections of wing rails, the positioning unit is arranged on the wing rail span plate, and is used to position the wing rail span plate relative to the track turnout, the measuring assembly comprises a driving screw, a guide straight rod, a moving slider and an infrared distance measuring sensor, the driving screw and the guide straight rod are close to each other, are vertically arranged on the wing rail span plate, and are vertically inserted into the harmful space, the moving slider is movably arranged on the driving screw and the guide straight rod passes through the moving slider, the number of infrared distance measuring sensors is two, and the two infrared distance measuring sensors are arranged The infrared ranging sensor is placed on the moving slider and faces the surfaces of the two wing rails respectively, and the emission direction of the infrared ranging sensor is horizontal. When measuring the verticality of the wing rail, the wing rail cross-plate is positioned relative to the track switch, and then the driving screw is rotated to make the moving slider move vertically downward in the harmful space. At the same time, the infrared ranging sensor continuously measures the distance from the moving slider to the wing rail surface, and the corresponding wing rail verticality is obtained based on the change difference of the continuously measured surface distance. Therefore, the utility model can accurately measure the verticality of the wing rail, thereby greatly simplifying the perfect measurement operation of the parameters of the harmful space.

[0016] 2. Because the measuring assembly of the utility model also includes a spring tape measure, the spring tape measure has a shell and a tape measure, the shell is fixed on the lower surface of the wing rail cross plate, the tape measure can be elastically contracted and penetrated through the shell, and the tape measure is vertical and the free end of the tape measure is fixed on the movable slider. Therefore, based on the reading of the tape measure, the utility model can easily establish a data association between the surface distance measured by the distance measuring sensor and the corresponding vertical position of the wing rail, thereby facilitating specific analysis and resolution of specific situations that lead to poor verticality.

[0017] 3. Because the two positioning abutments of the utility model are both arranged on the lower surface of the wing rail cross plate through spring sleeves, and the extension direction and telescopic direction of the spring sleeves are both horizontal directions, the number of spring sleeves is four, and the two positioning abutments include a fixed abutment plate and a swing abutment plate. The two ends of the fixed abutment plate along the extension direction of the wing rail are respectively connected to the wing rail cross plate through two spring sleeves, and the movable ends and elastic ends of the two spring sleeves are respectively fixed to the fixed abutment plate and the wing rail cross plate; the two ends of the swing abutment plate along the extension direction of the wing rail are respectively connected to the wing rail cross plate through two spring sleeves, and the movable end and elastic end of one spring sleeve are respectively fixed to the swing abutment plate and the wing rail cross plate, and the movable end and elastic end of the other spring sleeve are respectively hinged to the swing abutment plate and the wing rail cross plate. Therefore, the utility model realizes the positioning function of the positioning unit through the fixing or hinge of four spring sleeves, that is, the utility model is positioned on two non-parallel wing rails through a simple structure.

[0018] 4. Because a track rolling wheel is rotatably provided near the bottom end of the positioning plate of the utility model, and the track rolling wheels of the two positioning plates are arranged facing each other, the track rolling wheels are in rolling contact with the rail waist surface of the wing rail, and the rolling direction of the track rolling wheels is the extension direction of the wing rail, therefore, the utility model can be conveniently moved along the extension direction of the wing rail without frequent picking up and frequent positioning, thereby further simplifying the perfect measurement operation of the parameters of the harmful space.

[0019] 5. Because the measuring assembly of the utility model also includes a driving motor and a reduction gear pair, the driving motor drives the reduction gear pair to mesh and rotate, the output of the reduction gear pair is fixedly connected to the driving screw, and two gripping handles are respectively formed at both ends of the upper surface of the rail span plate. Therefore, the utility model can be moved by the user, and after positioning, the driving motor can be turned on under the premise of stable handholding, thereby realizing a single person can perform a complete measurement operation of the parameters of the harmful space. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the track turnout and hazardous space;

[0021] Figure 2 Schematic diagram of a parameter measurement device for a harmful space of a track turnout according to an embodiment of the utility model Figure 1 ;

[0022] Figure 3 Schematic diagram of a parameter measurement device for a harmful space of a track turnout according to an embodiment of the utility model Figure 2 ;

[0023] Figure 4 It is a schematic diagram of the cooperation between the measuring assembly and the wing rail span plate of an embodiment of the utility model;

[0024] Figure 5 for Figure 4 Enlarged schematic diagram of part A.

[0025] In the figure: 100, parameter measuring device of harmful space of track turnout, R1, rail head, R2, rail waist, R3, rail bottom, 10, wing rail cross plate, 11, grab handle, 12, motor bracket, 20, positioning unit, 21, fixed abutment plate, 22, swing abutment plate, 23, spring sleeve, 24, track rolling wheel, 30, measuring component, 31, driving motor, 32, reduction gear pair, 33, driving screw, 34, guide straight rod, 35, moving slider, 36, infrared ranging sensor, 37, spring tape measure, 371, housing, 372, tape measure, 40, display screen. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the following embodiments and the accompanying drawings specifically illustrate the parameter measurement device for harmful space of track turnouts of the present invention. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0027] like Figure 2 As shown, the harmful space of the track turnout in this embodiment is formed between the two sections of the wing rails of the turnout. The wing rail has a rail head R1, a rail waist R2 and a rail bottom R3 that are continuous from top to bottom. Specifically, the wing rail is a part of the track, so the shape and part name are consistent with the track, and the two sections of the wing rails are not parallel.

[0028] like Figure 3 As shown, the parameter measuring device 100 of the harmful space of the track turnout in this embodiment includes a wing rail span plate 10 , a positioning unit 20 , a measuring component 30 and a display screen 40 .

[0029] The wing rail span 10 is horizontally arranged, located just above the track switch and spanning two sections of wing rails. The wing rail span 10 has a gripping handle 11 and a motor bracket 12. Specifically, the wing rail span 10 is in the shape of a rectangular plate, with the span direction corresponding to the two sections of wing rails as the length direction, and a width direction formed relative to the length direction.

[0030] There are two gripping handles 11 , which are respectively formed at two ends of the upper surface of the wing rail span 10 . Specifically, the two gripping handles 11 are respectively located at two ends of the length of the wing rail span 10 .

[0031] In this embodiment, the motor bracket 12 is fixed on the upper surface of the wing rail span 10 .

[0032] The positioning unit 20 is disposed on the lower surface of the wing rail span 10 and is used to position the wing rail span 10 relative to the track switch.

[0033] The positioning unit 20 includes two positioning plates, a spring sleeve 23 and a track rolling wheel 24, which are all arranged on the lower surface of the wing rail span plate 10.

[0034] The plate surfaces of the positioning abutment plates are respectively abutted against the outer side surfaces of the rail heads R1 of the two sections of wing rails, and the bottom surfaces of the positioning abutment plates are respectively supported on the upper surfaces of the rail bottoms R3 on the outer sides of the two sections of wing rails, so that the two positioning abutment plates tightly clamp the two sections of wing rails from both outer sides of the two sections of wing rails, thereby positioning the wing rail cross plate 10 relative to the track switch.

[0035] The two positioning abutments are both arranged on the lower surface of the wing rail span plate 10 through a spring sleeve 23, and the extension direction and the telescopic direction of the spring sleeve 23 are both horizontal directions. The track rolling wheel 24 is rotatably arranged on the inner plate surface near the bottom end of the positioning abutment plate, and the track rolling wheels 24 of the two positioning abutment plates are arranged facing each other. The track rolling wheels 24 are in rolling contact with the outer surfaces of the rail waists R2 of the two sections of the wing rails, and the rolling direction of the track rolling wheels 24 is the extension direction of the wing rails. In this embodiment, first accommodating recesses (not shown in the drawings) are respectively formed at both ends of the length of the lower surface of the wing rail span plate 10, the spring sleeve 23 is arranged in the first accommodating recess, and a second accommodating recess (not shown in the drawings) is formed on the inner plate surface of the lower end of the positioning abutment plate, and a plurality of vertical roller shafts (not shown in the drawings) are provided in the second accommodating recess. There are a plurality of track rolling wheels 24, and the plurality of track rolling wheels 24 are rotatably arranged correspondingly through the roller shafts.

[0036] There are four spring sleeves 23 , and the two positioning abutment plates include a fixed abutment plate 21 and a swing abutment plate 22 . Specifically, the spring sleeve 23 has a fixed end and an elastic end abutted by a spring.

[0037] The two ends of the fixed abutment plate 21 along the extension direction of the wing rail are respectively connected to the lower surface of the wing rail span plate 10 through two spring sleeves 23, and the movable ends and elastic ends of the two spring sleeves are respectively fixed to the fixed abutment plate 21 and the wing rail span plate 22; the two ends of the swinging abutment plate 22 along the extension direction of the wing rail are respectively connected to the wing rail span plate 10 through two spring sleeves 23, and the movable end and elastic end of one spring sleeve 23 are respectively fixed to the swinging abutment plate 22 and the wing rail span plate 10, and the movable end and elastic end of the other spring sleeve 23 are respectively hinged to the swinging abutment plate 22 and the wing rail span plate 10, so that the fixed abutment plate 21 can move linearly relative to the wing rail span plate 10 along the length direction of the wing rail span plate 10 elastic movement, and the swinging abutment plate 22 can not only elastically move linearly along the length direction of the wing rail span plate 10 relative to the wing rail span plate 10, but also can rotate horizontally relative to the wing rail span plate 10. When the wing rail span plate 10 moves along the extension direction of the wing rail, the fixed abutment plate 21 and the swinging abutment plate 22 are always tightly attached to and clamped between the two sections of the wing rail under the elastic action of the spring sleeve 23. The swinging abutment plate 22 has a hinged relationship with the structure at both ends of a corresponding spring sleeve 23. Therefore, the swinging abutment plate 22 can adaptively cling to and clamp with the angle of the two sections of the wing rail, so that after the external force driving the movement of the wing rail span plate 10 is removed, the wing rail span plate 10 is positioned relative to the track switch.

[0038] like Figure 4 and Figure 5 As shown, the measuring assembly 30 includes a driving motor 31 , a reduction gear pair 32 , a driving screw 33 , a guide rod 34 , a moving slider 35 , an infrared distance measuring sensor 36 and a spring tape measure 37 .

[0039] The driving motor 31 drives the reduction gear pair 32 to mesh and rotate, and the output of the reduction gear pair 32 is fixedly connected to the driving screw 33. Specifically, the gear transmission ratio of the reduction gear pair 32 is greater than 1, and the input end gear is coaxially fixed on the output shaft of the driving motor 31, and the output end gear is coaxially connected to the driving screw 33. In this embodiment, the driving motor 31 is arranged on the motor bracket 12, and the driving screw 33 passes through the wing rail cross plate 10.

[0040] The driving screw 33 and the guide straight rod 34 are close to each other, both are vertically arranged on the lower surface of the wing rail cross plate 10, and both are vertically inserted into the harmful space. The driving screw 33 is rotatable, and the movable slider 35 is movably arranged on the driving screw 33, and the guide straight rod 34 passes through the movable slider 35, so that when the driving motor 31 is started, the movable slider 35 moves in the vertical direction in the harmful space under the guidance of the guide straight rod 34 and the drive of the driving screw 33.

[0041] There are two infrared ranging sensors 36, which are respectively arranged on opposite sides of the moving slider 35 and facing the inner surface of the waist R2 of the two wing rails respectively. The emission direction of the infrared ranging sensor 36 is horizontal, so as to continuously detect the distance from the moving slider 35 to the inner side of the waist R2 of the wing rail.

[0042] The spring tape measure 37 has a shell 371 and a tape 372. The shell 371 is fixed on the lower surface of the wing rail span plate 10. The tape 372 is elastically contracted and penetrates the shell 371. The tape 371 is vertical and the free end of the tape 371 is fixed on the moving slider 35. Therefore, by reading the tape 372, the distance from the moving slider 35 to the lower surface of the wing rail span plate 10 can be known. Specifically, a worm spring (not shown in the drawings) is provided in the shell 371, and the tape 372 is connected to the worm spring to achieve elastic contraction.

[0043] In this embodiment, the display screen 40 is embedded in the upper surface of the wing rail span 10 , and the display screen 40 is connected to the infrared ranging sensor 36 signal, and can display the measurement data of the infrared ranging sensor 36 in real time.

[0044] The measurement process of the parameter measurement device 100 for the harmful space of a track turnout is described below in conjunction with an embodiment:

[0045] First, the parameter measuring device 100 of the harmful space of the track turnout is positioned on the wing rail by clamping the positioning plate, and the display screen 40 is turned on;

[0046] Next, the surveyor manually starts the drive motor 31, and immediately after starting, grasps the gripping handle 11 to position the abutment plate for stable clamping of the wing rail, and observes the data measured by the infrared ranging sensor 36 displayed on the display screen 40 to confirm whether the width of the harmful space and the verticality of the wing rail meet the requirements, and then manually stops the drive motor 31.

[0047] Finally, the measurement personnel applies external force to the gripping handle 11 along the extension direction of the wing rail, so that the utility model moves on the wing rail and performs the above measurement process at several different predetermined positions.

[0048] The above-mentioned implementation modes are preferred cases of the present utility model and are not used to limit the protection scope of the present utility model. Various deformations or modifications that can be made by ordinary technicians in this field without creative work within the scope of the attached claims are still within the protection scope of this patent.

Claims

1. A parameter measuring device for a harmful space of a track turnout, wherein the harmful space is formed between two wing rails of the turnout, characterized in that: include: The wing rail cross plate is set horizontally, located directly above the track turnout and spans across the two sections of wing rails. A positioning unit is provided on the lower surface of the wing rail span plate and is used to position the wing rail span plate relative to the track switch. The device for measuring the parameter of the harmful space of the track turnout further comprises a measuring assembly, which comprises a driving screw, a guide straight rod, a moving slider and an infrared distance measuring sensor. The driving screw and the guide straight rod are close to each other, both are vertically arranged on the wing rail span plate, and both are vertically inserted into the harmful space. The driving screw is rotatably arranged, the moving slider is movably arranged on the driving screw and the guide straight rod passes through the moving slider. The number of the infrared distance measuring sensors is two, and the two infrared distance measuring sensors are respectively arranged on opposite sides of the movable slider and respectively face the surfaces of the two sections of wing rails, and the emission direction of the infrared distance measuring sensors is horizontal.

2. The parameter measuring device of the harmful space of the track turnout according to claim 1 is characterized in that: in, The measuring assembly also includes a spring tape measure, The spring tape measure has a shell and a tape measure, wherein the shell is fixed on the lower surface of the wing rail span plate, the tape measure is elastically contractibly inserted through the shell, and the tape measure is vertical and the free end of the tape measure is fixed on the moving slider.

3. The parameter measuring device of the harmful space of the track turnout according to claim 1 is characterized in that: in, The wing rail has a continuous rail head, rail waist and rail bottom from top to bottom. The positioning unit includes two positioning plates both arranged on the lower surface of the wing rail span plate. The plate surfaces of the positioning abutment plates are respectively abutted against the side surfaces of the rail heads of the two sections of wing rails, and the bottom surfaces are respectively supported on the upper surfaces of the rail bottoms of the two sections of wing rails, so that the two positioning abutment plates clamp the two sections of wing rails from the two outer sides of the two sections of wing rails, and then the wing rail cross-plate is positioned relative to the track switch.

4. The parameter measuring device of the harmful space of the track turnout according to claim 3 is characterized in that: in, The two positioning plates are both arranged on the lower surface of the wing rail span plate through spring sleeves, and the extension direction and the telescopic direction of the spring sleeves are both horizontal directions. There are four spring sleeves, and two positioning plates include a fixed plate and a swing plate. The two ends of the fixed abutment plate along the extension direction of the wing rail are respectively connected to the wing rail cross-plate through two spring sleeves, and the movable ends and elastic ends of the two spring sleeves are respectively fixed to the fixed abutment plate and the wing rail cross-plate; the two ends of the swing abutment plate along the extension direction of the wing rail are respectively connected to the wing rail cross-plate through two spring sleeves, and the movable end and elastic end of one spring sleeve are respectively fixed to the swing abutment plate and the wing rail cross-plate, and the movable end and elastic end of the other spring sleeve are respectively hinged to the swing abutment plate and the wing rail cross-plate.

5. The parameter measuring device of the harmful space of the track turnout according to claim 3 is characterized in that: in, A track rolling wheel is rotatably arranged near the bottom end of the positioning plate, and the track rolling wheels of the two positioning plates are arranged facing each other. The track rolling wheel is in rolling contact with the rail waist surface of the wing rail, and the rolling direction of the track rolling wheel is the extension direction of the wing rail.

6. The parameter measuring device of the harmful space of the track turnout according to claim 1 is characterized in that: in, The measuring assembly also includes a driving motor and a reduction gear pair, wherein the driving motor drives the reduction gear pair to mesh and rotate, and the output of the reduction gear pair is fixedly connected to the driving lead screw. Two gripping handles are respectively formed at both ends of the upper surface of the wing rail span plate.

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