A track inspection instrument assisted switch tooling

Abstract

The present application relates to the technical field of rail transit equipment, and discloses a track inspection instrument auxiliary switch crossing tooling, including a crossbeam, both sides of which are equipped with running wheels, both sides of which are movably connected to guide plows through sliders, and the guide plows are equipped with measuring wheels, a spring is provided between the slider and the crossbeam, and passive parts are provided on both sides of the crossbeam, and the passive parts are fixedly connected to the crossbeam through connecting arms. The passive parts can exert force on the guardrail, and the transmission part is provided between the passive part and the slider on the other side, so that the transmission part can drive the slider to move and make the measuring wheel disengage from the rail. The interaction force between the guardrail and the passive part is used to drive the slider on the other side to drive the guide plow and the measuring wheel to move, so as to ensure that when passing the switch, the measuring wheel does not contact the switch gap, so that the track inspection instrument can directly pass the switch without adjustment, thereby improving the inspection efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of rail transit equipment, and in particular to a track inspection instrument-assisted turnout tooling. Background Art

[0002] When the track gauge is measuring, the measuring wheel moves close to the inner side of the rail under the action of the preset pressure, and then collects the rail geometric parameter change curve data through the corresponding geometric parameter sensor to complete the real-time track geometric parameter measurement. The measuring wheel has high measurement requirements, and its surface is made of insulating and wear-resistant ceramics or polymer materials. The impact force generated by the measuring wheel when passing through the track gap poses a great threat to the surface layer of the measuring wheel. When a conventional track gauge passes through a switch section, the measuring wheel mechanism will be blocked and unable to pass due to the lack of an automatic adaptation mechanism. Therefore, when the track gauge passes through a switch, it often needs to be manually moved, which is not only time-consuming and labor-intensive, but also makes the measurement data discontinuous and lacks the rail data before and after the switch gap. Summary of the invention

[0003] The present application proposes a track inspection instrument auxiliary switch passing tooling, which reduces the wheelbase of two measuring wheels when passing through the switch, makes the measuring wheels separate from the rails, avoids collision between the measuring wheels and the rails, ensures that the measuring wheels pass through the switch gap without damage, improves the continuity and integrity of the data, and solves the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical solution: a track inspection instrument auxiliary turnout tooling, comprising a crossbeam, both sides of which are equipped with walking wheels, both sides of the crossbeam are movably connected with guide plows through sliders, the guide plows are equipped with measuring wheels, a spring is provided between the slider and the crossbeam, and also includes:

[0005] Passive components are arranged on both sides of the crossbeam, and the passive components are connected to the crossbeam through connecting arms. The passive components can be smoothly inserted between the rail and the guardrail, and exert force on the guardrail;

[0006] The transmission member is arranged between the passive member and the slider on the other side, so that the transmission member can drive the slider to move, so that the measuring wheel is out of contact with the rail.

[0007] Preferably, the distance between the passive member and the end of the guide plough is between 5 mm and 100 mm.

[0008] Preferably, the passive component is driven to move by utilizing the squeezing force between the guard rail and the passive component.

[0009] Preferably, the transmission member includes a synchronizing member disposed between the two sliders, enabling the measuring wheels and the sliders on both sides to move synchronously in opposite directions. The passive member interacts with the guard rail to push the entire crossbeam towards the rail, causing the rail to squeeze the measuring wheel and push the slider on one side to move.

[0010] Preferably, the transmission member is composed of a transmission arm and a connecting rod. The transmission arm is disposed in the middle of the crossbeam, and both sides of the transmission arm are respectively movably connected to the sliders on both sides through the connecting rods.

[0011] Preferably, the passive member is a guide wheel. The range of the maximum distance L is: 1330 mm < L < 1470 mm, and the passive member has a diameter between 3 mm and 42 mm.

[0012] Preferably, there are two groups of crossbeams, and the two groups of crossbeams form an "I" shape.

[0013] Preferably, the friction between the guard rail and the passive member is utilized to drive the passive member to act.

[0014] Preferably, the passive member is drivingly connected to a winding wheel. The winding wheel is connected to the slider on the other side through a steel wire rope. The connecting arm is movably connected to the crossbeam, and a torsion spring is provided between the connecting arm and the crossbeam.

[0015] Preferably, a reduction gear set is provided between the winding wheel and the passive member.

[0016] Preferably, a part of the steel wire rope near the slider is elastic.

[0017] Preferably, the winding wheel is connected with a one-way speed limiting block. The speed limiting block is a wedge-shaped block, and along the winding direction, the gap between the speed limiting block and the winding wheel becomes larger and larger. An elastic speed limiting bladder is provided between the speed limiting block and the winding wheel.

[0018] An auxiliary tool for a track inspection instrument to cross a turnout provided by the present application utilizes the interaction force between the guard rail and the passive member to drive the slider on the other side to drive the guide plow and the measuring wheel to move, ensuring that the measuring wheel does not contact the turnout gap when crossing the turnout, enabling the track inspection instrument to directly cross the turnout without adjustment, and improving the inspection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings forming a part of the specification depict the embodiments disclosed in the present application and, together with the specification, are used to explain the principles disclosed in the present application.

[0020] Referring to the drawings, the present disclosure can be more clearly understood from the following detailed description, wherein:

[0021] Figure 1 is a three-dimensional structure diagram of Embodiment 1 of the present invention;

[0022] Figure 2 A top view of the first embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of a first embodiment of the present invention when passing a turnout;

[0024] Figure 4 Positional relationship diagram of the speed limiting block, the speed limiting capsule and the winding wheel in the second embodiment of the present invention.

[0025] In the figure: 1. crossbeam; 2. walking wheel; 3. guide plow; 4. measuring wheel; 5. transmission part; 51. transmission arm; 52. connecting rod; 53. winding wheel; 54. wire rope; 55. speed limit block; 56. speed limit bag; 6. connecting arm; 7. passive part; 8. slider; 9. spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application. Embodiment 1

[0027] See also Figure 1-Figure 3, A turnout auxiliary tool for track inspection instrument, including a cross beam 1. Walking wheels 2 are installed on both sides of the cross beam 1. The distance between the two walking wheels 2 is the same as the width of the track. The width of the walking wheel 2 is slightly larger than the width of the rail head to ensure that the walking wheel 2 will not slip when adjusting the position horizontally. Guide plows 3 are movably connected to both sides of the cross beam 1 through sliders 8. Measuring wheels 4 are assembled on the guide plows 3. In the natural state, the distance between the two measuring wheels 4 is greater than the gauge, ensuring that the measuring wheels 4 can be closely attached to the inner side of the rail. In the minimum state, it is less than the gauge, enabling one side of the measuring wheel 4 to disengage from the contact with the rail. The height difference between the contact position of the measuring wheel 4 and the rail and the walking wheel 2 is between 3 mm and 150 mm. A spring 9 is provided between the slider 8 and the cross beam 1. The spring 9 makes the guide plow 3 move along the inner side of the track. Connecting arms 6 are fixedly connected to both sides of the cross beam 1. The connecting arms 6 are connected to passive parts 7. The passive parts 7 are guide wheels. In other embodiments, the passive parts can also be other structures that can slide and can be mutually extruded with the guard rail, such as sliders. The maximum distance L between the two passive parts 7 satisfies: 1330 mm < L < 1470 mm. The passive parts 7 have a diameter between 3 mm and 42 mm, enabling the passive parts 7 to be smoothly inserted between the rail and the guard rail and exert a force on the guard rail. The passive parts 7 are connected to a transmission part 5. The transmission part can make the force received by the passive parts 7 act on the other side slider 8 synchronously, causing the other side slider 8 to move, so that the measuring wheel 4 disengages from the contact with the rail. The transmission part 5 includes a synchronizing part. The middle part of the cross beam 1 is movably connected to a transmission arm 51. The two sides of the transmission arm 51 are respectively movably connected to the sliders 8 on both sides through connecting rods 52. The transmission arm 51 and the transmission arm 51 form a synchronizing part, ensuring that the sliders 8 and the guide plows 3 on both sides move synchronously and in opposite directions.

[0028] In the first embodiment, the extrusion force between the guard rail and the passive part 7 is utilized to drive the sliders 8 and the measuring wheels 4 to act, and the connecting rods 52 and the transmission arm 51 are used to transmit power. In other embodiments, the pressure can also be transmitted through two groups of hydraulic pipelines.

[0029] The transmission part 5 includes a synchronizing part. The synchronizing part is arranged between the two sliders 8, so that the measuring wheels 4 and the sliders 8 on both sides can move synchronously and in opposite directions. The passive part 7 interacts with the guard rail to push the entire cross beam 1 towards the rail, causing the rail to squeeze the measuring wheel and push the slider 8 on one side to move. The synchronizing part can also keep the cross beam 1 running in the centered state all the time, so that the passive part 7 will not deviate to one side before interacting with the guard rail. When the maximum distance L satisfies the limiting conditions, it is ensured that the passive part 7 can surely enter between the guard rail and the rail and interact with the guard rail.

[0030] When the track inspection instrument passes the switch, the passive component 7 and the guide plow 3 on the same side of the turning direction are inserted between the guardrail and the rail. While moving, the force between the guardrail and the passive component 7 pushes the crossbeam 1 toward the turning side, and the crossbeam 1 moves laterally toward the turning side. During the transverse movement, the force of the rail and the measuring wheel 4 pushes the guide plow 3 to move inward relative to the running wheel 2. Under the action of the slider 8 and the synchronizer, the guide plow 3 and the measuring wheel 4 on the other side also move inward, and the measuring wheel 4 breaks away from contact with the rail and smoothly slides through the gap at the track switch. In this process, the transmission arm 51 and the connecting rod 52 amplify the lateral displacement of the guide plow 3 and reduce the requirement for the lateral displacement.

[0031] The distance between the passive member 7 and the end of the guide plough 3 is between 5 mm and 100 mm.

[0032] There are two groups of beams 1, and the two groups of beams 1 form an "I" shape. Since the beam 1 is pushed by the guardrail on one side when passing the switch, the "I" shape reduces the risk of tilting of the beam 1. At this time, the measuring wheel 4 on one beam 1 is not used for actual measurement, and the connecting arm 6 and the passive part 7 can be set only on one side. Embodiment 2

[0033] See also Figure 2 and Figure 4 On the basis of the first embodiment, the winding wheel 53 and the wire rope 54 are used to replace the transmission arm 51 and the connecting rod 52 in the first embodiment, that is, the friction force between the rail and the passive component 7 is used to replace the extrusion force between the rail and the passive component 7 to drive the guide plow 3 and the measuring wheel 4 to move.

[0034] The passive component 7 is transmission-connected with a winding wheel 53, which is connected to the slider 8 on the other side through a wire rope 54. When the passive component 7 enters the guardrail, the friction force drives the passive component 7 to rotate, and the passive component 7 drives the winding wheel 53 to rotate. The winding wheel 53 winds up and pulls the slider 8 on the other side to move, driving the guide plow 3 and the measuring wheel 4 to move toward the inside of the track and break away from the rail. The connecting arm 6 is movably connected to the crossbeam 1, and a torsion spring is provided between the connecting arm 6 and the crossbeam 1. The torsion spring ensures that there is an appropriately large pressure between the passive component 7 and the rail. At the same time, it can also reduce the impact force between the passive component 7 and the guardrail, thereby increasing the service life of the passive component 7.

[0035] In order to improve the reliability of the friction force, a reduction gear set is provided between the winding wheel 53 and the passive component 7 to amplify the winding force of the winding wheel 53 and reduce the pressure requirement between the passive component 7 and the rail.

[0036] Since it still needs to run for a while after passing through the switch gap, the wire rope 54 wound in the winding wheel 53 is long enough, and the part of the wire rope 54 close to the slider 8 is elastic, ensuring that the winding wheel 53 can still shrink appropriately when the slider 8 slides to the maximum limit.

[0037] See also Figure 4 In order to avoid the collision between the measuring wheel 4 and the rail when crossing the guardrail, the winding wheel 53 is connected with a unidirectional speed limiting block 55. The speed limiting block 55 is a wedge-shaped block, and along the winding direction, the gap between the speed limiting block 55 and the winding wheel 53 becomes larger and larger. 57 is fixedly connected to the connecting arm 6. An elastic speed limiting capsule 56 is arranged between the speed limiting block 55 and the winding wheel 53. When winding, the friction between the friction capsule and the winding wheel 53 is small. When paying out the line, the friction between the winding wheel 53 and the speed limiting capsule 56 squeezes the speed limiting capsule 56, and the friction between the speed limiting capsule 56 and the winding wheel 53 increases, thereby achieving the speed limiting effect.

[0038] When the track detector passes the switch, the passive component 7 enters the gap between the guardrail and the rail. Under the action of the torsion spring force on the connecting arm 6, the passive component 7 is pressed against the guardrail. The rotation of the passive component 7 drives the winding wheel 53 to rotate. The winding wheel 53 rotates and rewinds, driving the slider 8 on the other side to move, thereby causing the measuring wheel 4 on the other side to break contact with the rail. After driving out of the guardrail, the elastic force of the spring 9 resets the slider 8.

Claims

1. A track inspection instrument auxiliary switch tool, comprising a crossbeam (1), both sides of the crossbeam (1) are equipped with walking wheels (2), both sides of the crossbeam (1) are movably connected to guide plows (3) through sliders (8), the guide plows (3) are equipped with measuring wheels (4), a spring (9) is provided between the slider (8) and the crossbeam (1), and the characteristics are as follows: It further includes: Passive members (7) respectively arranged on both sides of the cross beam (1), the passive members (7) are connected to the cross beam (1) through connecting arms (6), and the passive members (7) can be smoothly inserted between the rail and the guard rail and exert a force on the guard rail; A transmission member (5), the transmission member can make the force received by the passive member (7) act on the other slider (8) synchronously, so that the other slider (8) moves, so that the measuring wheel (4) is separated from the rail in contact; The transmission member (5) includes a synchronizing member, the synchronizing member is arranged between the two sliders (8), so that the measuring wheels (4) and the sliders (8) on both sides can move synchronously and in opposite directions, and the passive member (7) is a guide wheel, and the passive member (7) interacts with the guard rail to push the entire cross beam (1) towards the rail, so that the rail squeezes the measuring wheel to push one side of the slider (8) to move. The synchronizing member is composed of a transmission arm (51) and a connecting rod (52). The transmission arm (51) is arranged in the middle of the cross beam (1), and both sides of the transmission arm (51) are respectively movably connected to the sliders (8) on both sides through connecting rods (52), and the passive member (7) is driven to act by the extrusion force between the guard rail and the passive member (7).

2. A track inspection instrument auxiliary switch tooling according to claim 1, characterized in that: The distance between the passive member (7) and the end of the guiding plow (3) is between 5 mm and 100 mm.

3. The track inspection instrument auxiliary switch tooling according to claim 1 is characterized in that: The maximum distance between the two passive members (7) is L, and the range of the maximum distance L is: 1330 mm < L < 1470 mm, and the passive member (7) has a diameter between 3 mm and 42 mm.

4. A track inspection instrument auxiliary switch crossing tooling, comprising a crossbeam (1), both sides of the crossbeam (1) are equipped with walking wheels (2), both sides of the crossbeam (1) are movably connected to guide plows (3) through sliders (8), the guide plows (3) are equipped with measuring wheels (4), a spring (9) is provided between the slider (8) and the crossbeam (1), and the characteristics are as follows: It further includes: Passive members (7) respectively arranged on both sides of the cross beam (1), the passive members (7) are connected to the cross beam (1) through connecting arms (6), and the passive members (7) can be smoothly inserted between the rail and the guard rail and exert a force on the guard rail; A transmission member (5), the transmission member can make the force received by the passive member (7) act on the other slider (8) synchronously, so that the other slider (8) moves, so that the measuring wheel (4) is separated from the rail in contact; The passive member (7) is drivingly connected to a winding wheel (53), the winding wheel (53) is connected to the other slider (8) through a steel wire rope (54), the connecting arm (6) is movably connected to the cross beam (1), and a torsion spring is provided between the connecting arm (6) and the cross beam (1); a part of the steel wire rope (54) near the slider (8) is elastic; the winding wheel (53) is connected with a one-way speed limiting block (55), the speed limiting block (55) is a wedge-shaped block, and along the winding direction, the gap between the speed limiting block (55) and the winding wheel (53) becomes larger and larger, and an elastic speed limiting bladder (56) is provided between the speed limiting block (55) and the winding wheel (53), and the passive member (7) is driven to act by the frictional force between the guard rail and the passive member (7).

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