Track device for tunnel inspection equipment and tunnel inspection system

Abstract

The present invention relates to the technical field of mine tunnel inspection, and provides a track device for tunnel inspection equipment and a tunnel inspection system. The track device for tunnel inspection equipment includes a track, a traction rope, a driving wheel and a driven wheel. The track includes at least a support surface for the equipment to travel. The traction rope extends back and forth along the track for one circle and forms a closed loop. The traction rope is parallel in the transverse direction, and the parallel parts of the traction rope can be used to hang and pull the inspection equipment. The driving wheel and the driven wheel are inscribed at both ends of the closed loop of the traction rope and provide power and guidance for driving the traction rope to move. The track device is provided with transversely parallel traction ropes and horizontal support rail surfaces corresponding to the traction ropes, so that both traction ropes can be used to pull the inspection equipment. The traction rope can be selected to pull the inspection equipment according to the actual working conditions, thereby enhancing its adaptability in the tunnel.

Description

Technical Field

[0001] The present invention relates to the technical field of mine tunnel inspection, and in particular to a track device for tunnel inspection equipment and a tunnel inspection system. Background Art

[0002] Belt conveyors are important means of transportation and play an important role in production situations such as coal mines. The safety and stability of their operation play an important role in production efficiency and safety. Therefore, an inspection system is needed to conduct safety inspections on belt conveyors to achieve automatic and efficient inspections.

[0003] At present, most inspection systems are driven by their own power devices. Inspection systems driven by this method require built-in large-capacity batteries, and often have problems with low driving endurance and difficulty climbing. In the prior art, there are inspection equipment that is pulled by wire ropes, such as explosion-proof drive motors driving the wire ropes to move, and the inspection equipment moves accordingly. Various sensors on the inspection equipment are used to detect the operation and environmental data of the belt conveyor to understand its working conditions. This can solve some of the problems of insufficient endurance and difficulty climbing, but there are still problems that the inspection equipment is pulled by two drive devices, is large in size and heavy, and has low adaptability in underground tunnels. In addition, the large vibration during wire rope pulling is not conducive to data collection, and the stable and reliable operation of the inspection equipment cannot be guaranteed. Summary of the invention

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the present invention provides a track device, a traction device and an inspection system.

[0005] In a first aspect, a track device for tunnel inspection equipment is provided, which includes a track, a traction rope, a driving wheel and a driven wheel. The track includes at least a support surface for the equipment to travel, the traction rope extends back and forth along the track to form a closed loop, the traction rope is parallel in the transverse direction, and the parallel parts of the traction rope can be used to hang and pull the inspection equipment, and the driving wheel and the driven wheel are arranged inwardly at both ends of the traction rope closed loop and provide power and guidance for driving the traction rope to move.

[0006] In a first possible implementation manner, the support surface includes a first rail surface and a second rail surface, and the first rail surface and the second rail surface are respectively arranged corresponding to the parallel partial positions of the traction rope.

[0007] In combination with the above possible implementations, in a second possible implementation, the track further includes a guide surface, and the guide surface is perpendicular to the first track surface or the second track surface.

[0008] In combination with the above possible implementations, in a third possible implementation, a vertical guide plate is provided between the first rail surface and the second rail surface, and two side surfaces of the guide plate form guide surfaces.

[0009] In combination with the above possible implementations, in a fourth possible implementation, it is characterized in that the track has a cross section in the shape of a “I” or a “⊥”.

[0010] In combination with the above possible implementations, in a fifth possible implementation, it is characterized in that it also includes a tensioning mechanism, which can apply a continuous force to the driving wheel and / or the driven wheel to tighten the traction rope.

[0011] In combination with the above possible implementations, in a sixth possible implementation, the tensioning mechanism is a position adjustment mechanism, and the position adjustment mechanism can drive the driving wheel and / or the driven wheel to move to change their positions on the track.

[0012] In combination with the above possible implementations, in a seventh possible implementation, the position adjustment mechanism is a nut-screw pair mechanism, the nut is fixed to the track, and when the screw rotates relative to the nut, it can drive the driving wheel and / or the driven wheel to move relative to the track.

[0013] In combination with the above possible implementations, in an eighth possible implementation, the tensioning mechanism includes a counterweight, a wheel train and a suspension rope, the counterweight is used to provide gravity, and the suspension rope and the wheel train are used to connect the counterweight and the driven wheel and convert the gravity of the counterweight into traction on the driven wheel.

[0014] In combination with the above possible implementations, in a ninth possible implementation, a guide wheel is further included, and the guide wheel is arranged on the track and is used to limit the extension of the traction rope along the track.

[0015] In combination with the above possible implementations, in a tenth possible implementation, a traveling wheel assembly is further included, the traveling wheel assembly is towed by a traction rope and can travel along the supporting surface of the track, and the traveling wheel assembly is used to connect the inspection equipment.

[0016] In combination with the above possible implementations, in an eleventh possible implementation, the walking wheel assembly includes a wheel group and an equipment connector and a traction rope connector arranged on the wheel group, the traction rope connector is connected to the traction rope, and the wheel group can walk on the supporting surface of the track.

[0017] In combination with the foregoing possible implementations, in a twelfth possible implementation, the traction rope connecting member includes a first traction rope connecting member and a second traction rope connecting member, and the first traction rope connecting member or the second traction rope connecting member is fixed to the traction rope.

[0018] In combination with the above possible implementations, in a thirteenth possible implementation, the wheel group of the walking wheel assembly includes a first wheel group and a second wheel group, the first wheel group and the second wheel group are arranged in a plane symmetrically and connected to one of the parallel parts of the traction rope.

[0019] In combination with the above possible implementations, in a fourteenth possible implementation, both the first wheel group and the second wheel group are provided with traction rope connectors, and the two traction rope connectors respectively correspond to two parallel parts of the traction rope and are selectively connected to one of them.

[0020] In combination with the above possible implementation methods, in a fifteenth possible implementation method, the wheel group includes load-bearing wheels and guide wheels, the load-bearing wheels run on the supporting surface of the track, the axis of the guide wheel is cross-arranged with the load-bearing wheels and the tangent direction is consistent with the extension direction of the track.

[0021] In combination with the foregoing possible implementations, in a sixteenth possible implementation, the traction rope connector is detachably connected to the wheel assembly and / or the traction rope.

[0022] In combination with the above possible implementations, in a seventeenth possible implementation, the traction rope connector includes a main body and a sleeve and a tightening mechanism respectively arranged at two ends of the main body.

[0023] In a second aspect, a tunnel inspection system is provided, comprising a traction device and an inspection device, wherein the traction device is a track device for the tunnel inspection device of any one of the first aspects, and the track device for the tunnel inspection device is used to drive the inspection device to move along the track.

[0024] In a first possible implementation manner, the inspection device includes one or more of a methane sensor, a temperature sensor, a carbon monoxide sensor, a humidity sensor, and a distance sensor.

[0025] Compared with the prior art, the above technical solution provided by the embodiment of the present application has the following advantages: in the track device for lane inspection equipment and the lane inspection system, there are transverse parallel traction ropes and horizontal support rail surfaces corresponding to the traction ropes, so that both traction ropes can be used to pull the inspection equipment, and the traction rope can be selected to pull the inspection equipment according to the actual working conditions, thereby enhancing its adaptability in the lane. In some implementations, the lane inspection system has relatively low power consumption and high transmission efficiency through the specific structure and setting of the track and traction rope and other devices, and can achieve long-distance transmission; it also greatly improves the climbing and turning capabilities; through the setting of the tensioning mechanism and the guide wheel, it avoids large vibrations during wire rope traction that are not conducive to data collection, thereby ensuring the stable and reliable operation of the inspection system. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a lane inspection system in one embodiment of the present invention;

[0027] Figure 2 for Figure 1 The partial enlarged schematic diagram I;

[0028] Figure 3 for Figure 2A schematic diagram of a cross-sectional structure of the mid-track device;

[0029] Figure 4 for Figure 1 A schematic diagram of the structure of the travel wheel assembly in the middle lane inspection system;

[0030] Figure 5 for Figure 1 Partially enlarged schematic diagram II.

[0031] Reference numerals:

[0032] 100-track, 110-first track surface, 120-second track surface, 130-first guide surface, 140-second guide surface, 101-track segment 1, 102-track segment 2, 103-track segment 2;

[0033] 200-traction rope, 210-first rope section, 220-second rope section;

[0034] 300-driven wheel, 310-shaft;

[0035] 400-driving wheel;-

[0036] 500-guide wheel;

[0037] 600-tensioning mechanism, 610-tensioning bracket, 620-bearing seat, 630-nut, 640-screw;

[0038] 700-motor;

[0039] 800-travel wheel assembly, 810-first wheel assembly, 820-traction cable connector, 830-equipment connector, 840-second wheel assembly, 850-traction cable connector, 860-equipment connector, 811-bracket, 812-load-bearing wheel, 813-guide wheel, 821-main body, 822-sleeve, 823-tightening member;

[0040] 900-Inspection equipment. DETAILED DESCRIPTION

[0041] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present invention.

[0042] refer to Figures 1 to 5 The present invention will be further described below in conjunction with the accompanying drawings. Figure 1is a schematic diagram of the structure of a lane inspection system in one embodiment of the present invention, Figure 2 for Figure 1 The partial enlarged schematic diagram I, Figure 3 for Figure 2 A cross-sectional diagram of the mid-track device. Figure 4 for Figure 1 Schematic diagram of the structure of the travel wheel assembly in the middle lane inspection system. Figure 5 for Figure 1 Partially enlarged schematic diagram II.

[0043] In this embodiment, the lane inspection system includes a track device for lane inspection equipment and lane inspection equipment, and the track device provides support, guidance and traction for the inspection equipment to travel. The inspection system specifically includes a track 100, a traction rope 200, a driven wheel 300, a driving wheel 400, a guide wheel 500, a tensioning mechanism 600, a motor 700, a running wheel assembly 800 and an inspection equipment 900. The track device and the inspection equipment and their components are described in detail below one by one.

[0044] The track device includes a track 100 , a traction rope 200 , a driven wheel 300 , a driving wheel 400 and a tensioning mechanism 600 .

[0045] The track 100 has an I-shaped cross section. The track 100 is composed of a plurality of track sections. Each track section is composed of two parallel horizontal plates and a vertical plate connecting the two horizontal plates. The vertical plate divides the space between the two horizontal plates into two parts. The track 100 is formed by connecting track section 1 101, track section 2 102 and track section 2 103 in series. Track section 2 102 is bent upward relative to track section 1 101, and track section 2 103 is bent to the left relative to track section 2 102. The upper surface of the horizontal plate located at the bottom of the track 100 is a supporting surface, and is divided into two parts by the vertical plate, namely the first track surface 110 and the second track surface 120. The first track surface 110 and the second track surface 120 can be used for the inspection equipment 900 to travel. The two side surfaces of the vertical plate are the first guide surface 130 and the second guide surface 140, respectively. In some optional embodiments, the track 100 may also be in other shapes, such as a structure with a "T"-shaped cross section, that is, the track is composed of a horizontal plate and a vertical plate located below the horizontal plate, the upper surface of the horizontal plate is a support surface (track surface for walking); the vertical plate can also be used as a guide surface. For another example, the track 100 may also be a structure with a "⊥"-shaped cross section, that is, it is composed of a horizontal plate and a vertical plate located above the horizontal plate, the upper surface of the horizontal plate is a support surface and is divided into two track surfaces by the vertical plate, and the two side surfaces of the vertical plate can be used as guide surfaces.

[0046] The traction rope 200 extends back and forth along the track 100 to form a closed loop, and the two sections extending in opposite directions are distributed on both sides of the vertical plate of the track 100, that is, Figure 3The first cable segment 210 and the second cable segment 220 shown in the figure are parallel in the transverse direction. The first cable segment 210 and the second cable segment 220 can both be used to hook and pull the inspection equipment 900. The first cable segment 210 of the traction cable 200 is arranged corresponding to the first rail surface 110 and the first guide surface 130 and has a predetermined distance therebetween. The second cable segment 220 is arranged corresponding to the second rail surface 120 and the second guide surface 140 and has a predetermined distance therebetween.

[0047] The track 100 is curved, and a plurality of guide wheels 500 are provided on the track 100 for constraining the traction rope 200 on the track 100. The guide wheels 500 are arranged along the track 100, and constrain the traction rope 200 to extend along the track 100. A groove is provided around the circumferential surface of the guide wheel 500, and the axis of the guide wheel 500 is perpendicular to the extension direction of the track 100. A portion of the surface of the traction rope 200 is stuck in the groove of the guide wheel 500, and is supported and limited by the guide wheel 500.

[0048] The driven wheel 300 and the driving wheel 400 are both rotatably arranged at both ends of the track 100 via a transmission shaft and a bearing, and the transmission shaft is in a vertical direction, that is, the axes of the driven wheel 300 and the driving wheel 400 are in a vertical direction. Grooves are arranged around the outer circumferences of the driven wheel 300 and the driving wheel 400, and the two are arranged inwardly at both ends of the closed-loop traction rope 200, and the static friction force between the groove surface and the traction rope 200 provides power and guidance for driving the traction rope 200 to move.

[0049] The tensioning mechanism 600 can apply a continuous force to the driven wheel 300 to tighten the traction rope 200. Figure 1 and Figure 5 As shown, in this embodiment, the tensioning mechanism 600 is a position adjustment mechanism, and a set of position adjustment devices are provided on the upper and lower surfaces of the track 100, each for supporting the two ends of the transmission shaft of the driven wheel 300. The position adjustment mechanism can drive the driven wheel 300 to move to change its position on the track 100.

[0050] Specifically, the position adjustment mechanism is a nut-screw pair mechanism, including a tensioning bracket 610, a bearing seat 620, a nut 630 and a screw 640. The tensioning bracket 610 is fixed to the end of the track 100. The tensioning bracket 610 includes a U-shaped main frame and two parallel guide rails arranged on the inner side of the frame. The main frame includes two parallel side plates and an end plate connecting the two side plates, and a through hole is arranged on the end plate. The two guide rails are respectively arranged on the facing surfaces of the two side plates, and the direction of the guide rails is along the extension direction of the track 100. The guide rails are used for the bearing seat 620 to slide. A bearing is arranged in the middle of the bearing seat 620, and grooves for cooperating with the guide rails are arranged at both ends. A structure connected to the screw 640 is arranged on one side, and the bearing seat 620 is arranged on the track of the tensioning bracket 610. The nut 630 is arranged on the end plate on the tensioning bracket 610 and is coaxial with the through hole of the end plate. The screw rod 640 and the nut 630 are threadedly matched, and one end of the screw rod 640 is connected to the bearing seat 620. When the screw rod 640 rotates, it will translate along the axial direction, thereby driving the bearing seat 620 to move.

[0051] The driven wheel 300 is arranged on the bearing seat 620 through the shaft 310. When the bearing seat 620 is displaced, the driven wheel 300 can be driven to move, thereby tightening or loosening the traction rope 200 wound on the driven wheel 300. In some optional embodiments, the position adjustment mechanism can also be arranged at one end of the track 100 where the driving wheel 400 is installed, for adjusting the position of the driving wheel 400; in other optional embodiments, position adjustment devices can also be arranged at both the driven wheel 300 and the driving wheel 400. In other optional embodiments, the tensioning mechanism can also be a mechanism that uses the gravity of the counterweight to pull the driven wheel 300 and / or the driving wheel 400. For example, the tensioning mechanism includes a counterweight body, a wheel system and a suspension rope, the counterweight body is used to provide gravity, one end of the suspension rope is connected to the counterweight body, and the other end is connected to the structure that fixes the driven wheel 300 and / or the driving wheel 400. The wheel train supports the suspension rope and changes the direction of the suspension rope, thereby converting the gravity of the counterweight body into a traction force on the driven wheel along the extension direction of the track, realizing an automatic compensation tensioning effect.

[0052] The motor 700 and the reduction box are fixed on the track 100, and are connected to the transmission shaft of the driving wheel 400 through a coupling, so as to drive the driving wheel 400 to rotate.

[0053] The above structure is the composition of the track device, which provides the basic carrier and connection basis of the traction inspection equipment. The axes of the driven wheel 300 and the driving wheel 400 are arranged vertically, and the first cable segment 210 and the second cable segment 220 of the traction cable 200 can be parallel in the horizontal direction, and cooperate with the support surface of the traction cable 200, so that the first cable segment 210 and the second cable segment 220 can be used as the connection basis for connecting the inspection equipment, providing the option of installing at different positions when connecting the inspection equipment, and better adapting to the working conditions of the limited space in the underground tunnel. For example, when the position of one side of the first cable segment 210 is not suitable for connecting the inspection equipment, the inspection equipment can be connected to one side of the second cable segment 220. In addition, since the normal direction of the track support surface (rail surface) is generally vertical, the first cable segment 210 and the second cable segment 220 can be easily set to the same distance as the track support surface, so that the structure connecting the traction cable and the running wheel can adapt to the connection with the first cable segment 210 and the connection with the second cable segment 220 at the same time without changing.

[0054] The traveling wheel assembly 800 can travel on the track 100 and is used to connect the traction rope 200 and the inspection device 900 .

[0055] In this embodiment, the running wheel assembly 800 includes a first wheel group 810, a second wheel group 840, and a traction cable connector and a device connector respectively arranged on the first wheel group 810 and the second wheel group 840. The traction cable connector 820 and the device connector 830 are connected to the first wheel group 810, and the traction cable connector 850 and the device connector 860 are connected to the second wheel group 840. The traction cable connector 820 is connected to the first cable segment 210, and the traction cable connector 850 is used to connect to the second cable segment 220. The running wheel assembly 800 can travel on the support surface of the track 100.

[0056] The structures of the first wheel assembly 810 and the second wheel assembly 840 and the auxiliary structures connected thereto are the same, and the first wheel assembly 810, the traction rope connector 820 and the equipment connector 830 are taken as examples for description.

[0057] The first wheel group 810 includes a bracket 811, two load-bearing wheels 812 and a guide wheel 813. The bracket 811 is composed of a vertical plate and two horizontal plates perpendicular to the vertical plate. The width of the vertical plate is greater than the height. The two horizontal plates support the guide wheel 813. The two load-bearing wheels 812 are respectively arranged at both ends of the vertical plate in the horizontal direction, with the wheel axles horizontal and the wheel circumference tangent to the support surface of the track 100. The guide wheel 813 is hinged between the two horizontal plates, with the wheel axles vertically arranged and the wheel circumference tangent to the guide surface of the track 100.

[0058] The traction cable connector 820 includes a main body 821, a clamping member 823, a sleeve 822 and a transition plate 824. The clamping member 823 and the sleeve 822 are arranged at both ends of the main body 821 to form an integral body, and the integral body is hinged to the transition plate 824 through the clamping member 823. The main body 821 is a plate. In this embodiment, the clamping member 823 is specifically a sleeve-shaped structure rolled up at one end of the main body 821. The axes of the clamping member 823 and the sleeve 822 and the plate surface of the main body 821 plate are parallel. One end of the transition plate 824 has two forks, and the two forks are rolled into a cylindrical structure and the cylindrical structures are coaxial. The clamping member 823 of the traction cable connector 820 is located between the cylindrical structures formed by the forks at one end of the transition plate 824 and is coaxially connected to the cylindrical structure to form a hinge. The other end of the transition plate 824 is provided with a connecting shaft perpendicular to the plate surface, and is connected to the vertical plate on the bracket 811 through the connecting shaft. If necessary, the transition plate 824 and the bracket 811 can be arranged to be hingedly connected.

[0059] Through the above structure, the traction cable connector 820 is connected to the first wheel group 810 and the first cable segment 210. The equipment connector 830 is fixed to the bracket 811 of the first wheel group 810 and is used to connect the inspection equipment 900. The sleeve 822 can be compressed under a certain external force, so as to be clamped on the first cable segment 210. The sleeve 822 can also have a side opening, through which it is clamped on the first cable segment 210, and then the opening is closed and pressure is maintained by a hoop or bolt connection to be fastened to the first cable segment 210. In some optional embodiments, the traction cable connector 850 is connected to the second cable segment 220, and the sleeve 822 of the traction cable connector 820 can be fixed on the traction cable 200, while the clamping members 823 and 824 are not connected. When it is necessary to replace the traction cable connector 820 with the first cable segment 210, the clamping member 823 can be directly connected to the transition plate 824. Compared with fixing the sleeve 822 and the first cable segment 210 on site, this connection method is simpler.

[0060] The second wheel assembly 840, the traction cable connector 850 and the equipment connector 860 have the same structure as the above structure, and are symmetrically arranged on both sides of the vertical plate of the track 100. In this embodiment, the traction cable connector 820 is connected to the first cable segment 210, and in some optional embodiments, the traction cable connector 850 is connected to the second cable segment 220.

[0061] The track 100 is provided with a first rail surface 110 and a second rail surface 120, which can allow the first wheel group 810 and the second wheel group 840 to travel simultaneously, respectively. The equipment connector 830 and the equipment connector 860 can be connected to the inspection equipment 900 together. The bearing wheels of the two wheel groups have a large spacing, so the inspection equipment 900 can be supported more stably, and the shaking of the inspection equipment 900 on the axial direction of the bearing wheels can be reduced. In addition, the two wheel groups are provided with traction cable connectors, which can be freely selected to connect the first cable segment 210 or the second cable segment 220 according to actual needs.

[0062] In some optional embodiments, only the first wheel group 810, the traction cable connector 820 and the equipment connector 830 may be provided to connect the first cable segment 210 and the inspection device 900, or only the second wheel group 840, the traction cable connector 850 and the equipment connector 860 may be provided to connect the second cable segment 220 and the inspection device 900, which can be selected according to actual needs. When a set of running wheels is provided, two traction cable connectors may be provided on the running wheels, one of which is adapted to the first cable segment 210 and the other is adapted to the second cable segment 220, and one of them is selected to connect the traction cable 200 according to actual needs.

[0063] In other optional embodiments, only one traction rope connecting member may be provided on the two wheel groups, and the connecting member is detachably connected to the wheel group and the traction rope 200, and can be connected between the first rope segment 210 and the first wheel group 810, or between the second rope segment 220 and the second wheel group 840 according to actual needs.

[0064] In other optional embodiments, the support surface of the track 100 may include only one rail surface, and no guide surface may be provided. The wheel group does not have guide wheels, and only relies on the traction of the traction rope 200 to move and turn.

[0065] After the inspection equipment 900 is hung on the inspection equipment track device, it becomes the alley inspection system. The inspection equipment 900 integrates methane sensors, temperature sensors, carbon monoxide sensors, humidity sensors and distance sensors. When the inspection equipment 900 moves along the track device in the alley, it can obtain the operating status parameters of the alley and conveyor belt through the above sensors.

[0066] The track device and inspection system for tunnel inspection equipment provided in the embodiments of the present invention are provided with transversely parallel traction ropes and horizontal support rail surfaces corresponding to the traction ropes, so that both traction ropes can be used to pull the inspection equipment, thereby enhancing its adaptability in the tunnel.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A track device for lane inspection equipment, characterized in that: include: Tracks, including at least a support surface for the equipment to travel on; A traction rope extends back and forth along the track to form a closed loop, the traction rope is parallel in the transverse direction, and the parallel parts of the traction rope can be used to hook and pull the inspection equipment; as well as A driving wheel and a driven wheel are inscribed at both ends of the traction rope closed loop and provide power and guidance for driving the traction rope to move; It also includes a tensioning mechanism, which can apply a continuous force to the driving wheel and / or the driven wheel to tighten the traction rope; The tensioning mechanism is a position adjustment mechanism, which can drive the driving wheel and / or the driven wheel to move so as to change their positions on the track; The position adjustment mechanism is a nut-screw pair mechanism, the nut is fixed to the track, and when the screw rotates relative to the nut, the driven wheel can be driven to move relative to the track; The position adjustment mechanism includes a tensioning bracket, a bearing seat, a nut and a screw. The tensioning bracket is fixed to the end of the track. The tensioning bracket includes a U-shaped main frame and two parallel guide rails arranged on the inner side of the frame. The direction of the guide rails is along the extension direction of the track, and the guide rails are used for the bearing seat to slide; a bearing is arranged in the middle of the bearing seat, and grooves for matching with the guide rails are arranged at both ends. A structure connected with the screw is arranged on one side. The bearing seat is arranged on the track of the tensioning bracket, and the nut is arranged on the tensioning bracket. The screw and the nut are threadedly matched. One end of the screw is connected to the bearing seat. When the screw rotates, it will translate axially to drive the bearing seat to move; the driven wheel or the driving wheel is arranged on the bearing seat. When the bearing seat is displaced, the driven wheel or the driving wheel can be driven to move, thereby tightening or loosening the traction rope.

2. The track device for lane inspection equipment according to claim 1, characterized in that: The support surface includes a first rail surface and a second rail surface, and the first rail surface and the second rail surface are respectively arranged corresponding to the parallel partial positions of the traction rope.

3. The track device for lane inspection equipment according to claim 2, characterized in that: The track further includes a guide surface, and the guide surface is perpendicular to the first rail surface and / or the second rail surface.

4. The track device for lane inspection equipment according to claim 3, characterized in that: A guide plate is arranged between the first rail surface and the second rail surface, and two side surfaces of the guide plate form the guide surface.

5. The track device for lane inspection equipment according to any one of claims 1 to 4, characterized in that: The track has a cross section in the shape of "I" or "⊥".

6. The track device for lane inspection equipment according to claim 1, characterized in that: The tensioning mechanism comprises a counterweight, a wheel train and a suspension rope, wherein the counterweight is used to provide gravity, and the suspension rope and the wheel train are used to connect the counterweight and the driven wheel and convert the gravity of the counterweight into traction on the driven wheel.

7. The track device for lane inspection equipment according to any one of claims 1 to 4, characterized in that: The utility model also comprises a guide wheel, which is arranged on the track and is used for limiting the extension of the traction rope along the track.

8. The track device for lane inspection equipment according to any one of claims 1 to 4, characterized in that: It also includes a walking wheel assembly, which is towed by the traction rope and can move along the supporting surface of the track, and the walking wheel assembly is used to connect the inspection equipment.

9. The track device for lane inspection equipment according to claim 8, characterized in that: The traveling wheel assembly comprises a wheel set and a device connecting member and a traction cable connecting member arranged on the wheel set. The traction cable connecting member is connected to the traction cable, and the wheel set can travel on the supporting surface of the track.

10. The track device for lane inspection equipment according to claim 9, characterized in that: The traction rope connecting member includes a first traction rope connecting member and a second traction rope connecting member, and the first traction rope connecting member or the second traction rope connecting member is fixed to the traction rope.

11. The track device for lane inspection equipment according to claim 8, characterized in that: The wheel set of the traveling wheel assembly comprises a first wheel set and a second wheel set, wherein the first wheel set and the second wheel set are arranged in a plane symmetrical manner and are connected to one of the parallel parts of the traction rope.

12. The track device for lane inspection equipment according to claim 11, characterized in that: The first wheel assembly and the second wheel assembly are both provided with traction rope connecting pieces, and the two traction rope connecting pieces respectively correspond to two of the parallel parts of the traction rope and are selectively connected to one of them.

13. The track device for lane inspection equipment according to claim 9, characterized in that: The wheel set includes a load-bearing wheel and a guide wheel. The load-bearing wheel runs on the supporting surface of the track. The axis of the guide wheel is arranged to cross the load-bearing wheel and the tangent direction is consistent with the extension direction of the track.

14. The track device for lane inspection equipment according to claim 9, characterized in that: The traction rope connecting piece is detachably connected to the wheel set and / or the traction rope.

15. The track device for lane inspection equipment according to claim 14, characterized in that: The traction rope connecting piece comprises a main body and a sleeve and a clamping mechanism respectively arranged at two ends of the main body.

16. A lane inspection system, comprising a track device and an inspection device, characterized in that: The track device is a track device for lane inspection equipment as described in any one of claims 1 to 15, and the track device for lane inspection equipment is used to drive the inspection equipment to move along the track.

17. The lane inspection system according to claim 16, characterized in that: The inspection equipment includes one or more of a methane sensor, a temperature sensor, a carbon monoxide sensor, a humidity sensor and a distance sensor.

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