Non-contact tunnel detection radar position adjusting device

Abstract

The application discloses a non-contact tunnel detection radar position adjusting device, belongs to railway tunnel detection equipment, and aims to solve the technical problem of how to quickly, stably and labor-saving adjust the position and angle of the radar, so that the non-contact radar can be quickly and safely detected, and the detection efficiency is improved. The technical scheme is that the structure comprises a fixed base plate, a cross arm is arranged on the fixed base plate, a rotary table is arranged on one side of the cross arm, a rotary mechanism is arranged between the rotary table and the fixed base plate, a lifting mechanism is arranged on one side of the rotary table, the lifting mechanism comprises a stand column, the stand column is arranged on one side of the rotary table, a rocker arm lifting cylinder is arranged on the other side of the rotary table, a rocker arm rotating shaft is arranged above the stand column, a rocker arm is arranged on the rocker arm rotating shaft, one end of the rocker arm close to the stand column is hingedly connected with the extension end of the rocker arm lifting cylinder, the cylinder end of the rocker arm lifting cylinder is hingedly connected with the rotary table, and a two-stage telescopic cylinder is arranged above the rocker arm.

Description

Technical Field

[0001] This invention relates to railway tunnel inspection equipment, specifically a non-contact tunnel inspection radar position adjustment device. Background Technology

[0002] With the continuous growth in the scale of tunnel construction and operational mileage, and the increasingly complex operating environment of tunnels, the long-term safety performance of their structures faces significant challenges. Currently, radar inspection of tunnel lining structures primarily relies on manual ground-coupled radar inspection. This method not only suffers from high labor intensity and low efficiency, but also poses health hazards to inspection personnel due to the adverse tunnel environment. In contrast, non-contact radar avoids close contact with the inspection surface by being fixed on a rail platform vehicle. This effectively overcomes the shortcomings of existing manual inspection methods, improving inspection efficiency and safety while reducing workload and labor costs. However, non-contact radar requires fixation on a rail platform vehicle, and its position and angle must be adjusted according to the different survey lines. In the inspection of railway tunnels, especially those in operation, there are specific requirements regarding the time and space for adjusting and fixing the radar equipment.

[0003] Non-contact radar overcomes the drawback of traditional ground-coupled radar, which requires contact, and can be fixed on a rail flatbed vehicle for rapid, contactless, and automatic detection. However, adjusting and fixing the position is currently a major challenge for tunnel inspection using non-contact radar. Therefore, how to quickly, stably, and labor-savingly adjust the radar's position and angle to achieve rapid and safe non-contact radar detection and improve detection efficiency is a pressing technical problem that needs to be solved. Summary of the Invention

[0004] The technical objective of this invention is to provide a non-contact tunnel detection radar position adjustment device to solve the problem of how to quickly, stably, and effortlessly adjust the radar position and angle, thereby achieving rapid and safe non-contact radar detection and improving detection efficiency.

[0005] The technical objective of this invention is achieved as follows: a non-contact tunnel detection radar position adjustment device, the device comprising a fixed chassis, a crossbeam mounted on the fixed chassis, an upper turntable mounted on one side of the crossbeam, a slewing mechanism between the upper turntable and the fixed chassis, and a lifting mechanism mounted on one side above the upper turntable.

[0006] The lifting mechanism includes a column, which is located on one side of the upper turntable, and a rocker arm lifting cylinder is located on the other side of the upper turntable. A rocker arm pivot is located above the column, and a rocker arm is mounted on the rocker arm pivot. The end of the rocker arm near the column is hinged to the telescopic end of the rocker arm lifting cylinder, and the cylinder body end of the rocker arm lifting cylinder is hinged to the upper turntable. A secondary telescopic cylinder is located above the rocker arm, and the secondary telescopic cylinder is arranged parallel to the rocker arm, with its cylinder body end fixedly connected to the rocker arm via a rocker arm fixing block. A guide plate is located at the telescopic end of the secondary telescopic cylinder, and a radar fixing mechanism is mounted on the guide plate.

[0007] Preferably, a fixed angle iron is provided on the fixed chassis, and the crossarm is connected to the fixed chassis through the fixed angle iron; clamping blocks are provided at both ends of the crossarm, and the clamping blocks are L-shaped, which are used to fix the crossarm to the rail flatbed vehicle.

[0008] Preferably, the column is provided with a column top seat and a column base at both ends, the lower side of the column base is fixedly connected to the upper turntable, and a number of evenly distributed reinforcing ribs are provided between the upper side of the column base and the column; a number of evenly distributed reinforcing ribs are provided between the lower side of the column top seat and the column, and the upper side of the column top seat is connected to the rocker arm shaft.

[0009] More preferably, a shaft protective cover is provided on the outer side of the rocker arm shaft;

[0010] The rocker arm fixing block is L-shaped.

[0011] Preferably, the slewing mechanism includes a motor, a slewing bearing seat, and a worm gear. The output end of the motor is connected to the worm gear, the worm gear is connected to the slewing bearing seat, and the slewing bearing seat is connected to a fixed chassis.

[0012] Preferably, the cylinder body end of the rocker arm lifting cylinder is hinged to the upper turntable via a fixed lug, and the telescopic end of the rocker arm lifting cylinder is hinged to the rocker arm via a fixed lug.

[0013] Preferably, an electrical control cabinet is installed on the fixed chassis, which is used to control the rotation, lifting and extension functions.

[0014] Preferably, the radar fixing mechanism includes a radar shaft, one end of which is connected to a guide plate, and the other end of which is provided with a fixing platform connecting seat. A fixing platform is provided on the side of the fixing platform connecting seat away from the radar shaft. One side of the fixing platform is connected to the fixing platform connecting seat, and four connecting rods are arranged in parallel on the other side of the fixing platform. An insulating plate is provided between the four connecting rods, and four fixing rods are arranged in parallel on the insulating plate. The four fixing rods are used to fix and connect the non-contact radar.

[0015] More preferably, the radar shaft is provided with several locking holes for adjusting and fixing the radar angle; the fixed platform connecting seat is provided with several screw holes, and the non-contact radar angle is fixed by bolts installed in the screw holes of the fixed platform connecting seat and the locking holes of the radar shaft.

[0016] More preferably, a limit block is provided at the connection between the insulating plate and the fixing rod to prevent the fixing rod from moving;

[0017] The connecting rod, fixing rod, and insulating plate are all made of insulating PVC material to prevent a large number of metal objects from causing interference during the non-contact radar detection process.

[0018] The non-contact tunnel detection radar position adjustment device of the present invention has the following advantages:

[0019] (i) This invention can realize the raising and lowering, left and right switching and extension and retraction of non-contact radar, while ensuring the stability and reliability of non-contact radar when detecting tunnels.

[0020] (ii) This invention achieves rapid and stable adjustment of the position and angle of the non-contact radar by adjusting the rotation between the two-stage telescopic cylinder, the rocker arm lifting cylinder, the fixed chassis, and the slewing bearing components.

[0021] (III) The two-stage telescopic cylinder of the present invention can adjust the height of the non-contact radar extension, thereby increasing the working radius of radar detection. The rocker arm lifting cylinder can adjust the angle between the rocker arm and the ground, thereby adjusting the radar angle and height. The rotary device is used to adjust the position and direction of the radar. The fixed chassis fixes the non-contact radar fixture on the rail flatbed. The various components of the fixture cooperate and adjust with each other, greatly expanding the entire detection range. The angle can be adjusted in all directions above the horizontal plane, realizing the precise change of radar position within a quarter-sphere range.

[0022] (iv) With the non-contact tunnel detection radar position adjustment device designed by the present invention, on-site inspection personnel do not need to manually install and adjust the position. They only need to continuously operate the secondary telescopic cylinder and the rocker arm lifting cylinder to achieve rapid and stable adjustment of the non-contact radar position, which greatly ensures the safety of on-site inspection personnel. At the same time, it eliminates the need to disassemble the heavy radar device, which greatly saves manpower. The fixed chassis is embedded between the fixed angle irons through the crossbeam. After adjusting the position on both sides, the chassis of the railcar platform is clamped by the clamping blocks, which can fix the non-contact radar fixture on the railcar flat plate, which greatly improves the overall stability of the non-contact radar fixture and further enhances the safety of the inspection personnel.

[0023] (v) The insulating plate of the present invention is provided with square holes for inserting PVC material fixing rods. High-strength bolts are used to install limit blocks on both sides of the insulating plate on the fixing rods to stabilize the radar.

[0024] (vi) The secondary telescopic cylinder of the present invention is connected to the top radar fixing device through two radar shafts. One radar shaft is provided with eight slots and the other radar shaft is provided with screw holes, which can better adjust the angle.

[0025] This invention features a reasonable design, simple structure, easy processing, small size, convenient use, and multiple uses, thus it has great value for promotion and application. Attached Figure Description

[0026] The invention will be further described below with reference to the accompanying drawings.

[0027] Appendix Figure 1 This is a schematic diagram of the position adjustment device for a non-contact tunnel detection radar.

[0028] Appendix Figure 2 A top view of the non-contact tunnel detection radar position adjustment device;

[0029] Appendix Figure 3 This is a schematic diagram of the radar shaft structure;

[0030] Appendix Figure 4 This is a structural schematic diagram of the fixed platform connecting seat.

[0031] In the diagram: 1. Fixed chassis, 2. Crossbeam, 3. Upper turntable, 4. Column, 5. Rocker arm lifting cylinder, 6. Rocker arm shaft, 7. Rocker arm, 8. Secondary telescopic cylinder, 9. Rocker arm fixing block, 10. Guide plate, 11. Fixed angle iron, 12. Clamping block, 13. Column top seat, 14. Column base, 15. Reinforcing rib plate, 16. Shaft protective cover, 17. Motor, 18. Slewing bearing seat, 19. Worm gear, 20. Fixing lug, 21. Electrical control cabinet, 22. Radar shaft, 23. Fixed platform connecting seat, 24. Fixed platform, 25. Connecting rod, 26. Insulating plate, 27. Fixing rod, 28. Clip hole, 29. Screw hole, 30. Limiting block, 31. Non-contact radar. Detailed Implementation

[0032] The following detailed description of a non-contact tunnel detection radar position adjustment device of the present invention is based on the accompanying drawings and specific embodiments.

[0033] In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] Example:

[0036] As attached Figure 1 and 2 As shown, this embodiment provides a non-contact tunnel detection radar position adjustment device, the structure of which includes a fixed chassis 1, on which a crossbeam 2 is installed, the crossbeam being made of solid steel. A top turntable 3 is installed on one side of the crossarm 2, and a slewing mechanism is installed between the top turntable 3 and the fixed base 1. A lifting mechanism is installed on one side above the top turntable 3. The lifting mechanism includes a column 4, which is installed on one side of the top turntable 3, and a rocker arm lifting cylinder 5 is installed on the other side of the top turntable 3. A rocker arm shaft 6 is installed above the column 4, and a rocker arm 7 is installed on the rocker arm shaft 6. The end of the rocker arm 7 near the column 4 is hinged to the telescopic end of the rocker arm lifting cylinder 5, and the cylinder body end of the rocker arm lifting cylinder 5 is hinged to the top turntable 3. A secondary telescopic cylinder 8 is installed above the rocker arm 7. The secondary telescopic cylinder 8 is arranged parallel to the rocker arm 7, and the cylinder body end of the secondary telescopic cylinder 8 is fixedly connected to the rocker arm 7 through a rocker arm fixing block 9. A guide plate 10 is installed on the telescopic end of the secondary telescopic cylinder 8, and a radar fixing mechanism is installed on the guide plate 10.

[0037] In this embodiment, a fixed angle iron 11 is installed on the fixed chassis 1, and the crossarm 2 is connected to the fixed chassis 1 through the fixed angle iron 11; clamping blocks 12 are installed at both ends of the crossarm 2, and the clamping blocks 12 are L-shaped and used to be fixedly connected to the rail flatcar.

[0038] In this embodiment, a column top seat 13 and a column base 14 are respectively installed at both ends of the column 4. The lower side of the column base 14 is fixedly connected to the upper turntable 3, and a plurality of evenly distributed reinforcing ribs 15 are welded between the upper side of the column base 14 and the column 4. A plurality of evenly distributed reinforcing ribs 15 are welded between the lower side of the column top seat 13 and the column 4, and the upper side of the column top seat 13 is connected to the rocker arm shaft 6. The reinforcing ribs 15 are made of angle iron.

[0039] In this embodiment, a shaft protective cover 16 is installed on the outside of the rocker arm shaft 6 to prevent corrosion from rain, snow, wind, and sand.

[0040] In this embodiment, the rocker arm fixing block 9 is L-shaped.

[0041] The rotary mechanism in this embodiment includes a motor 17, a rotary support 18, and a worm gear 19. The output end of the motor 17 is connected to the worm gear 19, and the worm gear 19 is connected to the rotary support 18. The rotary support 18 is connected to the fixed chassis 1.

[0042] In this embodiment, the cylinder body end of the rocker arm lifting cylinder 5 is hinged to the upper turntable 3 via a fixing lug 20, and the telescopic end of the rocker arm lifting cylinder 5 is hinged to the rocker arm 7 via a fixing lug 20.

[0043] In this embodiment, an electrical control cabinet 21 is installed on the fixed chassis 1. The electrical control cabinet 21 is used to control and detect the rotation, lifting and extension functions.

[0044] The radar fixing mechanism in this embodiment includes a radar shaft 22. One end of the radar shaft 22 is connected to a guide plate 10, and the other end of the radar shaft 22 is equipped with a fixing platform connecting seat 23. A fixing platform 24 is installed on the side of the fixing platform connecting seat 23 away from the radar shaft 22. One side of the fixing platform 24 is connected to the fixing platform connecting seat 23. Four connecting rods 25 are installed in parallel on the other side of the fixing platform 24. An insulating plate 26 is installed between the four connecting rods 25. Four fixing rods 27 are installed in parallel on the insulating plate 26. The four fixing rods 27 are used to fix and connect the non-contact radar 31.

[0045] As attached Figure 3 and 4 As shown, in this embodiment, the radar shaft 22 is provided with several locking holes 28, which are used to adjust and fix the angle of the radar; the fixed platform connecting seat 23 is provided with several screw holes 29, and the angle of the non-contact radar 31 is fixed by bolts installed in the screw holes 29 of the fixed platform connecting seat 23 and the locking holes 28 of the radar shaft 22.

[0046] In this embodiment, a limit block 30 is installed at the connection between the insulating plate 26 and the fixing rod 27 to prevent the fixing rod 27 from moving.

[0047] In this embodiment, the connecting rod 25, the fixing rod 27, and the insulating plate 26 are all made of insulating PVC material to prevent a large number of metal objects from causing certain interference to the non-contact radar 31 during the detection process.

[0048] In this embodiment, the crossbeam 2 is embedded between the fixed angle irons 11 of the fixed chassis 1, and then the clamping block 124 is used to securely connect it to the rail flatcar. The clamping block 124 has screw holes, and the clamping block 124 can be fixed with high-strength bolts after the position is adjusted. An electrical control cabinet 21 is installed on the upper right side of the fixed chassis 1 to control the rotation, lifting, and extension functions of this embodiment.

[0049] The rotating mechanism includes a slewing device, which employs a transmission method combining a planar double-envelope toroidal worm gear 19 and a slewing support 18. The worm gear 19 is a helical transmission element, typically a helical cylinder with a helical outline on its outer surface. The planar double-envelope toroidal worm gear is a special type of worm gear where the helical outline is confined within a specific plane. The motor 17 outputs power, which is transmitted to the slewing support 18, causing it to rotate. The slewing device is installed between the upper turntable 3 and the fixed base 1, and the slewing support 18 is vertically connected to the fixed base 1 using high-strength bolts.

[0050] The lifting mechanism includes a column 4 on the upper turntable 3. Several reinforcing ribs 15 are welded between the column top seat 13 and column base 14 of the column 4 and the column body of the column 4, stabilizing the connection between the column top seat 13 and column base 14 and the column body of the column 4. The column base 14 is fixedly connected to the upper turntable 3 by bolts, and the column top seat 13 is fixedly connected to the rocker arm shaft 6 by bolts. A shaft protective cover 16 is added to the axis of the rocker arm shaft 6 to prevent corrosion from rain, snow, wind, and sand. Opposite to the column 4 on the upper turntable 3 is a rocker arm lifting cylinder 5. The lower end of the rocker arm lifting cylinder 5 is connected to the upper turntable 3 via a fixing lug 20, and the upper end of the rocker arm lifting cylinder 5 is connected to the lower surface of the rocker arm 7 via a fixing lug 20. The extension and retraction of the rocker arm lifting cylinder 5 realizes the raising and lowering of the rocker arm 7. The secondary telescopic cylinder 8 is located above and parallel to the rocker arm 7. A rocker arm fixing block 9 is welded below the secondary telescopic cylinder 8, and the rocker arm 7 is welded to the rocker arm fixing block 9 above it. This allows the secondary telescopic cylinder 8 and the rocker arm 7 to be securely connected via the rocker arm fixing block 9. A guide plate 10 is installed at the top of the secondary telescopic cylinder 8. The guide plate 10 is bolted to the radar shaft 22. Multiple locking holes 28 are formed on the radar shaft 22 for adjusting and fixing the radar angle. A screw hole 29 is formed on the fixing platform connecting seat 23. Bolts pass through the screw hole 29 of the fixing platform connecting seat 23 and the locking holes 28 on the radar shaft 22 to fix the angle of the non-contact radar 31. The fixing platform 24 is bolted to the fixing platform connecting seat 23. The connecting rod 25, fixing rod 27, and insulating plate 26 are all made of PVC insulating material to prevent interference from numerous metal objects during the non-contact radar 31 detection process. A square hole is opened on the insulating plate 26 to install the fixing rod 27 for fixing the radar. After the fixing rod 27 is inserted into the square hole, insulating material limit blocks 30 are installed on both sides of the insulating plate 26 to prevent the fixing rod 27 from moving.

[0051] After power is supplied to this embodiment, the power switch is turned on in the electrical control cabinet 21, and the telescopic and lifting buttons are pressed. The motor 17 rotates, which in turn drives the oil pump to rotate. The pump draws oil from the oil pump and then pumps the oil, converting mechanical energy into the pressure energy of hydraulic oil. The hydraulic oil is then transmitted to the secondary telescopic cylinder 8 and the rocker arm lifting cylinder 5 through the external pipeline after the direction, pressure and flow of the hydraulic oil are regulated by the solenoid valve combination. This controls the change of direction, the magnitude of force and the speed of the secondary telescopic cylinder 8, thereby driving the hydraulic machinery to do work.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A non-contact tunnel detection radar position adjustment device, characterized in that, The device includes a fixed chassis, a crossbeam mounted on the fixed chassis, an upper turntable mounted on one side of the crossbeam, a slewing mechanism between the upper turntable and the fixed chassis, and a lifting mechanism mounted on one side above the upper turntable. The lifting mechanism includes a column, which is located on one side of the upper turntable, and a rocker arm lifting cylinder is located on the other side of the upper turntable. A rocker arm pivot is located above the column, and a rocker arm is mounted on the rocker arm pivot. The end of the rocker arm near the column is hinged to the telescopic end of the rocker arm lifting cylinder, and the cylinder body end of the rocker arm lifting cylinder is hinged to the upper turntable. A secondary telescopic cylinder is located above the rocker arm, and the secondary telescopic cylinder is arranged parallel to the rocker arm, with its cylinder body end fixedly connected to the rocker arm via a rocker arm fixing block. A guide plate is located at the telescopic end of the secondary telescopic cylinder, and a radar fixing mechanism is mounted on the guide plate. The fixed chassis is equipped with a fixed angle iron, and the crossarm is connected to the fixed chassis through the fixed angle iron; clamping blocks are respectively set at both ends of the crossarm, and the clamping blocks are L-shaped, which are used to fix the crossarm to the rail flatbed vehicle. The column is equipped with a column top seat and a column base at both ends. The lower side of the column base is fixedly connected to the upper turntable. Several evenly distributed reinforcing ribs are provided between the upper side of the column base and the column. Several evenly distributed reinforcing ribs are provided between the lower side of the column top seat and the column. The upper side of the column top seat is connected to the rocker arm shaft. The radar fixing mechanism includes a radar shaft, one end of which is connected to a guide plate, and the other end of which is provided with a fixing platform connecting seat. A fixing platform is provided on the side of the fixing platform connecting seat away from the radar shaft. One side of the fixing platform is connected to the fixing platform connecting seat, and four connecting rods are arranged in parallel on the other side of the fixing platform. An insulating plate is provided between the four connecting rods, and four fixing rods are arranged in parallel on the insulating plate. The four fixing rods are used to fix and connect the non-contact radar. The radar shaft has several locking holes for adjusting and fixing the radar angle; the mounting base has several screw holes, and the non-contact radar angle is fixed by bolts installed in the screw holes of the mounting base and the locking holes of the radar shaft. A protective cover for the rocker arm pivot is provided on the outside of the pivot. The rocker arm fixing block is L-shaped; The slewing mechanism includes a motor, a slewing bearing, and a worm gear. The motor output end is connected to the worm gear, the worm gear drives the slewing bearing, and the slewing bearing is connected to a fixed chassis. The cylinder body end of the rocker arm lifting cylinder is hinged to the upper turntable via a fixed lug, and the telescopic end of the rocker arm lifting cylinder is hinged to the rocker arm via a fixed lug. An electrical control cabinet is installed on the fixed chassis. The electrical control cabinet is used to control the rotation, lifting and telescopic functions. A limit block is installed at the connection between the insulating plate and the fixing rod to prevent the fixing rod from moving; The connecting rod, fixing rod, and insulating plate are all made of PVC insulating material.

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