An intelligent inspection device for rail transit with shock absorption function

Abstract

The present invention discloses an intelligent inspection device for rail transit with a shock-absorbing function in the field of rail transit technology, comprising a shell and a base, wherein a shock-absorbing component for connecting the shell and the base is arranged between the shell and the base; a plurality of rollers are rotatably matched at the bottom of the base, and rotating shafts are coaxially fixedly connected on the opposite side walls of adjacent rollers, and a cam is fixedly connected at one end of the rotating shaft away from the roller; a plurality of first cavities are opened in the base. The cams are driven to rotate by the rotation of the rollers, and the horizontal plate repeatedly moves up and down under the driving action of the protruding end of the cam, and the first cavity absorbs external gas through negative pressure, and the air pressure in the first cavity gradually increases, so that the rotation speed of the roller slows down, and then the device as a whole is decelerated at a fixed time, so as to prevent the device from vibrating due to excessive speed; when the shell is vibrated by external influences, the shell moves up and down less under the limit of the detection component, so as to achieve the purpose of reducing the vibration of the internal components in the shell.

Description

Technical Field

[0001] The invention belongs to the technical field of rail transit, and in particular is an intelligent inspection device for rail transit with a shock-absorbing function. Background Art

[0002] Rail transit refers to a type of transportation vehicle or transportation system in which operating vehicles need to travel on specific tracks. The national standard "Common Terms and Terminology of Urban Public Transportation" defines urban rail transit as "a general term for fast, high-volume public transportation that is usually powered by electricity and adopts a wheel-rail operation mode." Common rail transit includes traditional railways (ordinary railways, intercity railways and urban railways), subways, light rails and trams, in addition to new types of rail transit such as magnetic levitation rail systems and monorail systems. With the diversified development of train and railway technology, rail transit has shown more and more types, not only in long-distance land transportation, but also widely used in medium and short-distance urban public transportation.

[0003] With the development of modern railway transportation, track inspection has become an important part of ensuring railway safety and operation; however, when the existing track inspection equipment is in use, due to the uneven track road or excessive speed, the inspection equipment is prone to vibration when moving, which may damage the internal components; therefore, it is necessary to propose an intelligent inspection device for rail transit with a shock-absorbing function. Summary of the invention

[0004] The purpose of the present invention is to propose an intelligent inspection device for rail transit with a shock-absorbing function. The rotation of the roller drives the cam to rotate. Under the push of the protruding end of the cam, the cross plate moves up and down repeatedly. The first cavity absorbs external gas through negative pressure. The air pressure in the first cavity gradually increases, which slows down the rotation speed of the roller, and then the entire device is decelerated at a regular time to prevent the device from vibrating due to excessive speed. When the shell is vibrated by external influences, the up and down movement range of the shell is reduced under the limit of the detection component, thereby achieving the purpose of reducing the vibration of internal components in the shell.

[0005] In order to achieve the above-mentioned object, the technical solution of the present invention is as follows: an intelligent inspection device for rail transit with a shock-absorbing function, comprising a shell and a base, wherein a shock-absorbing component for connecting the shell and the base is provided between the shell and the base;

[0006] A plurality of rollers are rotatably matched at the bottom of the base, and the side walls opposite to the adjacent rollers are coaxially fixedly connected with rotating shafts, and the ends of the rotating shafts away from the rollers are fixedly connected with cams; a plurality of first cavities are opened in the base, and a horizontal plate is vertically slidably matched in the first cavity, and the end of the cam away from the rotating shaft passes through the bottom of the base and extends into the first cavity and rotatably matches with the bottom wall of the first cavity; the first cavities are connected with an air inlet valve and an air outlet valve;

[0007] The lower part of the shell is provided with a detection component for detecting track settlement; the upper part of the shell is provided with a patrol inspection component for performing geometric detection on the track.

[0008] The following principles and beneficial effects are achieved by adopting the above scheme:

[0009] Basic principle: open the air inlet valve in the first cavity and close the air outlet valve; when the device as a whole moves between the two tracks, the roller rotates and drives the rotating shaft fixed to it to rotate, and the rotating shaft drives the cam to rotate. When the protruding end of the cam gradually rotates out and away from the cross plate, the cross plate moves downward according to its own gravity. At this time, negative pressure is generated in the first cavity. Under this negative pressure, the outside air is absorbed into the first cavity through the air inlet valve; under the continuous rotation of the roller, when the protruding end of the cam rotates again and contacts the cross plate in the first cavity, the protruding end of the cam pushes the cross plate to move upward; this is repeated. When the first cavity is When the gas in the cavity is adsorbed enough, the air pressure in the first cavity increases. At this time, when the protruding end of the cam contacts the cross plate again to push the cross plate upward, the gas in the first cavity applies a downward thrust to the cross plate, so that the protruding end of the cam is blocked from pushing the cross plate upward, thereby further slowing down the rotation speed of the roller, and then performing a timed deceleration on the entire device; when the roller cannot move, the air inlet valve can be closed and the air outlet valve can be opened to discharge the gas inside the first cavity; in this process, the track settlement can be detected by the detection component, and the track geometry can be detected by the inspection component.

[0010] Beneficial effects: The detection component is placed on the side wall of the track. Since the height of the device is limited, the device is connected to the side wall of the track through the detection component to ensure that the moving distance of the shock-absorbing component is limited. The moving distance of the shock-absorbing component is limited. When the road is uneven, the roller is vibrated first, and the shock-absorbing component drives the shell to move up and down. Under the limitation of the detection component, the up and down movement of the shell is reduced, thereby further reducing the vibration of internal components in the shell.

[0011] The difference between the present invention and the prior art lies in that: the rotation of the roller drives the cam to rotate, and under the pushing action of the protruding end of the cam, the cross plate moves up and down repeatedly, the first cavity absorbs the external gas through negative pressure, and the air pressure in the first cavity gradually increases, so that the rotation speed of the roller slows down, and then the whole device is decelerated at a timed rate to prevent the device from vibrating due to excessive speed; when the shell is vibrated by external influences, the up and down movement range of the shell is reduced under the limit of the detection component, thereby achieving the purpose of reducing the vibration of internal components in the shell.

[0012] Furthermore, the shell and the base are both made of magnesium-aluminum material.

[0013] Beneficial effects: The magnesium-aluminum material is light in weight. The shell and the base are made of magnesium-aluminum material, which can reduce the overall weight of the device, thereby further facilitating the movement of the roller.

[0014] Furthermore, the shock absorbing assembly includes a plurality of shock absorbing rods with telescopic structures, and springs are sleeved on the outer side walls of the shock absorbing rods. One end of the spring is fixedly connected to the bottom of the shell, and the other end of the spring is fixedly connected to the top of the base.

[0015] Beneficial effect: When the device is subjected to obstructed vibration, the spring moves up and down under the vibration force. In order to limit the movement of the spring and ensure the stability of the spring when it moves up and down, a shock-absorbing rod with a telescopic structure is added. The shock-absorbing rod shrinks up and down as the spring moves up and down, supporting and limiting the spring while the spring disperses the vibration force.

[0016] Furthermore, the roller is detachably connected with a crawler belt.

[0017] Beneficial effect: The crawler belt can be set on two rollers to form a conveyor belt structure. The arrangement of the crawler belt increases the contact area between the rollers and the supporting surface, thereby further increasing the stability of the device when moving.

[0018] Furthermore, the detection component includes a controller and a guide wheel; a plurality of second cavities and a first through groove are opened in the lower part of the shell, the guide wheel is located in the first through groove and rotatably cooperates with the first through groove; a pressure sensor is installed in the second cavity, the pressure sensor is electrically connected to the controller, a valve is connected in the second cavity, a piston plate is slidably cooperated in the second cavity, a connecting rod is fixedly connected to the side wall of the piston plate, and an end of the connecting rod away from the piston plate passes through the side wall of the shell and extends to the first through groove and rotatably cooperates with the top of the guide wheel.

[0019] Beneficial effect: the guide wheel is placed at the side wall of the track. When the device is moved, the guide wheel moves on the side wall of the track. Since the distance between the tracks on both sides is consistent, when the track sinks or twists at a certain point, the distance between the tracks on both sides will change. When the distance between the tracks on both sides becomes closer, the tracks on both sides squeeze the guide wheel, so that the guide wheel pushes the connecting rod and the piston plate to move into the second cavity, further increasing the pressure in the second cavity. At this time, the pressure sensor detects the information and transmits the information to the controller. Based on the information, it can be detected whether the distance between the sections of the track becomes closer; and the device is connected to the side wall of the track through the guide wheel to ensure that the moving distance of the shock absorber rod is limited, and the moving distance of the shock absorber assembly is limited. When the road is uneven, the roller is vibrated first, and the shock absorber assembly drives the shell to move up and down. Under the limitation of the guide wheel, the degree of up and down movement of the shell is reduced, thereby further reducing the vibration of internal components in the shell.

[0020] Furthermore, the surface of the guide wheel is coated with a lubricating layer.

[0021] Beneficial effect: The lubricating layer can reduce the friction between the guide wheel and the side wall of the track, making the guide wheel move more smoothly on the side wall of the track and reducing friction resistance.

[0022] Furthermore, the inspection component includes a number of motors, all of which are electrically connected to the controller. The motors are embedded in the housing, and screw rods are coaxially and fixedly connected to the output shafts of the motors. A number of third cavities and second through grooves are formed inside the upper part of the housing, and an inspection part in a shape of "冖" is arranged in the second through groove. The end of the screw rod away from the motor is rotationally matched with the inner side wall of the third cavity. A push plate is slidably matched in the third cavity, and the screw rod penetrates through the push plate and is threadedly connected to the push plate. A number of push rods are fixedly connected to the side wall of the push plate, and the end of the push rod away from the push plate penetrates through the side wall of the housing and is fixedly connected to the side wall of the inspection part.

[0023] Beneficial effects: Before the device moves, start the motor, and the motor drives the screw rod to rotate. Since the screw rod is threadedly connected to the push plate and the push plate is slidably matched with the inner side wall of the third cavity, when the screw rod rotates, the push plate moves towards the second through groove under the limiting action of the third cavity, thereby driving the push rod to move towards the second through groove, and the push rod then drives the inspection part to move out of the second through groove and place the inspection part above the track.

[0024] Furthermore, a camera is fixedly connected to the inner top wall of the inspection part, and the camera is electrically connected to the controller.

[0025] Beneficial effects: The camera takes images of the track, and the camera transmits the captured images to the controller, which is convenient for subsequent analysis based on the track images.

[0026] Furthermore, a laser rangefinder is detachably connected to the inner side wall of the inspection part, and the laser rangefinder is electrically connected to the controller; a lighting lamp is also detachably connected to the inner side wall of the inspection part, and the lighting lamp is electrically connected to the controller.

[0027] Beneficial effects: The laser rangefinder measures parameters such as the height, horizontal deviation, and curvature of the track, and then transmits the measured information to the controller. The controller combines the distance between the two tracks measured by the guide wheels to detect and analyze data such as track settlement. In addition, when the device is used at night, the visible range of the track can be increased through the illumination of the lighting lamp, which is convenient for the subsequent camera to capture image information.

[0028] Furthermore, the outer surfaces of the housing and the base are both coated with a coating material, and the coating material is composed of the following components in parts by weight: 3 - 5 parts of modified expandable graphite, 9 - 15 parts of modified nano-zinc oxide, 2 - 6 parts of absolute ethanol, 1 - 2 parts of epoxy resin, and 0.5 - 1 part of polyamide resin.

[0029] Beneficial effects: The outer surfaces of the housing and the base are both coated with a coating material, and this coating material has the superhydrophobicity and anti-corrosion properties of expandable graphite, enabling it to have an anti-corrosion function and extending the service life of the housing and the base. Description of the Drawings

[0030] Figure 1It is an axonometric diagram of an embodiment of the present invention.

[0031] Figure 2 It is a cross-sectional view of an embodiment of the present invention. DETAILED DESCRIPTION

[0032] The following is further described in detail through specific implementation methods:

[0033] The figure marks in the drawings of the specification include: housing 1, base 2, roller 3, rotating shaft 4, shock absorbing rod 5, guide wheel 6, cam 7, connecting rod 8, piston plate 9, laser rangefinder 10, cross plate 11, motor 12, screw 13, push plate 14, push rod 15, inspection unit 16, camera 17.

[0034] The embodiment is basically as shown in the attached Figure 1-2 As shown:

[0035] An intelligent inspection device for rail transit with a shock-absorbing function comprises a housing 1 and a base 2, both of which are made of magnesium-aluminum materials; a shock-absorbing assembly for connecting the housing 1 and the base 2 is provided between the housing 1 and the base 2; the shock-absorbing assembly comprises a plurality of shock-absorbing rods 5 of a telescopic structure, and springs are sleeved on the outer side walls of the shock-absorbing rods 5, one end of the spring is welded to the bottom of the housing 1, and the other end of the spring is welded to the top of the base 2;

[0036] When the device is subjected to vibration, the spring moves up and down under the vibration force. In order to limit the movement of the spring and ensure the stability of the spring when moving up and down, a shock-absorbing rod 5 with a telescopic structure is added. The shock-absorbing rod 5 shrinks up and down as the spring moves up and down, supporting and limiting the spring while the spring disperses the vibration force.

[0037] A plurality of rollers 3 are rotatably engaged at the bottom of the base 2, and a rotating shaft 4 is coaxially fixedly connected to the opposite side walls of adjacent rollers 3 by bolts, and a cam 7 is fixedly connected to the end of the rotating shaft 4 away from the roller 3; a plurality of first cavities are opened in the base 2, and a cross plate 11 is vertically slidably engaged in the first cavity, and the end of the cam 7 away from the rotating shaft 4 passes through the bottom of the base 2 and extends into the first cavity and rotatably engages with the bottom wall of the first cavity; an air inlet valve and an air outlet valve are connected in the first cavity; and a track is detachably connected to the roller 3.

[0038] The air inlet valve in the first cavity is opened, and the air outlet valve is closed; when the device as a whole moves between the two tracks, the roller 3 rotates and drives the rotating shaft 4 fixedly connected thereto to rotate, and the rotating shaft 4 drives the cam 7 to rotate. When the protruding end of the cam 7 gradually rotates out and away from the cross plate 11, the cross plate 11 moves downward according to its own gravity. At this time, negative pressure is generated in the first cavity. Under this negative pressure, the outside air is adsorbed into the first cavity through the air inlet valve; under the continuous rotation of the roller 3, when the protruding end of the cam 7 rotates again to contact the cross plate 11 in the first cavity, the protruding end of the cam 7 pushes the cross plate 11 to move upward; this is repeated, and when the first cavity is When the gas inside is adsorbed enough, the air pressure in the first cavity increases. At this time, when the protruding end of the cam 7 contacts the cross plate 11 again to push the cross plate 11 upward, the gas in the first cavity applies a downward thrust to the cross plate 11, so that the protruding end of the cam 7 is blocked from pushing the cross plate 11 upward, thereby further slowing down the rotation speed of the roller 3, and then performing a timed deceleration on the entire device; when the roller 3 cannot move, the air inlet valve can be closed and the air outlet valve can be opened to discharge the gas inside the first cavity; in this process, the track settlement can be detected by the detection component, and the track geometry can be detected by the inspection component.

[0039] A detection component for detecting track settlement is provided at the lower part of the shell 1; the detection component includes a controller and a guide wheel 6, and the model of the controller is preferably SPC-STW-S0402CTR; a plurality of second cavities and a first through groove are opened in the lower part of the shell 1, and the guide wheel 6 is located in the first through groove and rotatably cooperates with the first through groove; a pressure sensor is installed in the second cavity, and the model of the pressure sensor is preferably MIK-P300, and the pressure sensor is electrically connected to the controller, and valves are connected in the second cavities, and a piston plate 9 is slidably cooperated in the second cavity, and a connecting rod 8 is welded on the side wall of the piston plate 9, and the end of the connecting rod 8 away from the piston plate 9 passes through the side wall of the shell 1 and extends to the first through groove to rotatably cooperate with the top of the guide wheel 6; the surface of the guide wheel 6 is coated with a lubricating layer.

[0040] Place the guide wheel 6 at the side wall of the track. When moving the device, the guide wheel 6 moves along the side wall of the track. Since the distances between the two side tracks are the same, when settlement or distortion occurs in a certain section of the track, the distance between the two side tracks will change. When the distance between the two side tracks becomes closer, the two side tracks squeeze the guide wheel 6, causing the guide wheel 6 to push the connecting rod 8 and the piston plate 9 to move into the second cavity, further increasing the pressure in the second cavity. At this time, the pressure sensor detects this information and transmits it to the controller. Based on this information, it can be detected whether the distance between this section of the tracks becomes closer; and the device is connected to the side wall of the track through the guide wheel 6, ensuring that the moving distance of the shock-absorbing rod 5 is limited, and the moving distance of the shock-absorbing component is limited. When the road surface is uneven, the roller 3 is first vibrated. Under the action of this vibration, the shock-absorbing component drives the housing 1 to move up and down. Under the limit of the guide wheel 6, the up and down movement degree of the housing 1 is reduced, thereby further reducing the vibration of the internal components in the housing 1.

[0041] A inspection component for geometric inspection of the track is provided on the upper part of the housing 1; the inspection component includes a number of motors 12, and the model of the motor 12 is preferably 5RK60GN-CF. The motors 12 are all electrically connected to the controller. The motors 12 are embedded and installed in the housing 1. A screw rod 13 is coaxially and fixedly connected to the output shaft of the motor 12 through bolts; a number of third cavities and second through grooves are opened in the upper part of the housing 1. An inspection part 16 in the shape of "冖" is provided in the second through groove; one end of the screw rod 13 away from the motor 12 is rotatably matched with the inner side wall of the third cavity; a push plate 14 is slidably matched in the third cavity, and the screw rod 13 passes through the push plate 14 and is threadedly connected to the push plate 14; a number of push rods 15 are welded on the side wall of the push plate 14, and one end of the push rod 15 away from the push plate 14 passes through the side wall of the housing 1 and is welded to the side wall of the inspection part 16; a camera 17 is fixedly connected to the inner top wall of the inspection part 16 through bolts, and the camera 17 is electrically connected to the controller; a laser rangefinder 10 is detachably connected to the inner side wall of the inspection part 16, and the model of the laser rangefinder 10 is preferably MJJGCJYD001QW. The laser rangefinder 10 is electrically connected to the controller; a lighting lamp is also detachably connected to the inner side wall of the inspection part 16, and the lighting lamp is electrically connected to the controller. The outer surfaces of the housing and the base are both plated with a coating material, and the coating material consists of the following components in parts by weight: 3-5 parts of modified expandable graphite, 9-15 parts of modified nano-zinc oxide, 2-6 parts of absolute ethanol, 1-2 parts of epoxy resin, and 0.5-1 part of polyamide resin, so that it has the function of corrosion resistance to extend the service life of the housing and the base.

[0042] Before the device moves, the motor 12 is started, and the motor 12 drives the screw 13 to rotate. Since the screw 13 is threadedly connected to the push plate 14 and the push plate 14 is slidably matched with the inner wall of the third cavity, when the screw 13 rotates, the push plate 14 moves in the direction of the second through groove under the limiting action of the third cavity, thereby driving the push rod 15 to move in the direction of the second through groove, and the push rod 15 then drives the inspection unit 16 to move out of the second through groove, and the inspection unit 16 is placed above the track. The track is imaged by the camera 17, and the camera 17 transmits the captured image to the controller for subsequent analysis based on the track image. The laser rangefinder 10 measures parameters such as the track height, horizontal deviation and curvature, and then transmits the measurement information to the controller. The controller combines the distance between the two tracks measured by the guide wheel 6 to detect and analyze data such as track settlement. When the device is used at night, the visible range of the track can be increased by irradiating the lighting, which is convenient for the subsequent camera 17 to capture image information.

[0043] The above is only an embodiment of the present invention. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the invention before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An intelligent inspection device for rail transit with a shock-absorbing function, characterized in that: It includes a housing and a base, and a shock-absorbing component for connecting the housing and the base is provided between the housing and the base; A number of rollers are rotatably fitted to the bottom of the base. On the side walls of adjacent rollers facing each other, rotating shafts are coaxially and fixedly connected. At one end of the rotating shaft away from the roller, cams are fixedly connected. A number of first cavities are formed in the base. In the first cavities, cross plates are vertically slidably fitted. One end of the cam away from the rotating shaft penetrates through the bottom of the base and extends into the first cavity and is rotatably fitted with the bottom wall of the first cavity; An air inlet valve and an air outlet valve are communicated in each of the first cavities; A detection component for detecting track settlement is provided at the lower part of the housing; An inspection component for geometric inspection of the track is provided at the upper part of the housing; The detection component includes a controller and guide wheels; A number of second cavities and first through grooves are formed in the lower part of the housing. The guide wheels are located in the first through grooves and are rotatably fitted with the first through grooves; A pressure sensor is installed in the second cavity. The pressure sensor is electrically connected to the controller. Valves are communicated in each of the second cavities. A piston plate is slidably fitted in the second cavity. A connecting rod is fixedly connected to the side wall of the piston plate. One end of the connecting rod away from the piston plate penetrates through the side wall of the housing and extends into the first through groove and is rotatably fitted with the top of the guide wheel; A lubricating layer is coated on the surface of the guide wheel; The inspection component includes a number of motors. The motors are all electrically connected to the controller. The motors are embedded and installed in the housing. On the output shafts of the motors, screws are coaxially and fixedly connected; A number of third cavities and second through grooves are formed in the upper part of the housing. An inspection part in the shape of "冖” is provided in the second through groove; One end of the screw away from the motor is rotatably fitted with the inner side wall of the third cavity; A push plate is slidably fitted in the third cavity. The screw penetrates through the push plate and is threadedly connected to the push plate; A number of push rods are fixedly connected to the side wall of the push plate. One end of the push rod away from the push plate penetrates through the side wall of the housing and is fixedly connected to the side wall of the inspection part; A camera is fixedly connected to the inner top wall of the inspection part. The camera is electrically connected to the controller; A laser rangefinder is detachably connected to the inner side wall of the inspection part. The laser rangefinder is electrically connected to the controller; A lighting lamp is also detachably connected to the inner side wall of the inspection part. The lighting lamp is electrically connected to the controller.

2. The intelligent inspection device for rail transit with shock absorption function according to claim 1 is characterized in that: Both the housing and the base are made of magnesium-aluminum material.

3. The intelligent inspection device for rail transit with shock absorption function according to claim 2 is characterized in that: The shock-absorbing component includes a number of shock-absorbing rods with a telescopic structure. Springs are sleeved on the outer side walls of the shock-absorbing rods. One end of the spring is fixedly connected to the bottom of the housing, and the other end of the spring is fixedly connected to the top of the base.

4. The intelligent inspection device for rail transit with a shock absorption function according to claim 3 is characterized in that: A crawler is detachably connected to the roller.

5. The intelligent inspection device for rail transit with a shock absorption function according to claim 2, characterized in that: Coating materials are plated on the outer surfaces of the housing and the base. The coating materials are composed of the following components in parts by weight: 3-5 parts of modified expandable graphite, 9-15 parts of modified nano-zinc oxide, 2-6 parts of absolute ethanol, 1-2 parts of epoxy resin, and 0.5-1 part of polyamide resin.

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