An orbital settlement measurement device

Abstract

This application relates to an orbital settlement measurement device, mainly relating to the technical field of special measurement equipment for subway track construction. It includes a tractor and a detection mechanism connected to the tractor; the detection mechanism includes a box body connected to the tractor, a top pressing assembly arranged on the top of the box body, two connection blocks slidably connected to the box body in the vertical direction, a plurality of compression springs with both ends respectively abutted against the connection blocks and the box body, a detection head slidably connected to the bottom of the box body in the vertical direction, and two positioning wheels rotatably connected to the connection blocks; the top pressing assembly abuts against the top of the tunnel, the compression springs are in a compressed state, and the positioning wheels abut against the grooves on the outer sides of the rails. This application has the advantages of high measurement efficiency and sensitive detection accuracy.

Description

Technical Field

[0001] This application relates to the technical field of special surveying equipment for subway track construction, and particularly relates to a track settlement measurement device. Background Technique

[0002] Track settlement refers to the phenomenon of irregular ground subsidence where the ground foundation for laying tracks collapses due to its bearing capacity being unable to meet the transportation load requirements. This phenomenon is particularly evident in underground tunnel areas with soft foundation texture and rich water resources. The track settlement phenomenon can cause local stress concentration on the track, accelerate track damage, and thus lead to rapid track aging, posing a huge safety hazard to the safe operation of trains. Therefore, it is necessary to regularly measure the track to promptly detect and handle the track settlement phenomenon.

[0003] Currently, the measurement of track settlement mainly relies on settlement observation instruments. The use of settlement observation instruments requires first fixedly installing a leveling observation object as a reference and leveling itself. However, the installation of the reference object and the leveling process itself are rather cumbersome. When the measurement target mileage is long and there are many measurement points, the workload will increase significantly, resulting in a low progress efficiency of the measurement work. In addition, the observation requirements of the settlement observation instrument are for an open field of view and good light, while the actual environmental conditions in underground tunnels are poor, making it difficult to ensure the accuracy of the measurement.

[0004] Regarding the above related technologies, the inventor believes that the existing track settlement measurement equipment has the defects of cumbersome operation and low measurement efficiency, and has high requirements for the use environment, and is not suitable for track measurement in underground tunnels. Summary of the Invention

[0005] In order to improve the efficiency of carrying out track settlement measurement work in underground tunnels and simplify the operation process of the measurement equipment, this application provides a track settlement measurement device.

[0006] A track settlement measurement device provided by this application adopts the following technical solution:

[0007] A track settlement measurement device includes a tractor and a detection mechanism connected to the tractor; the detection mechanism includes a box body connected to the tractor, a top pressure assembly arranged on the top of the box body, two connection blocks slidably connected to the box body in the vertical direction, a plurality of compression springs with both ends respectively abutting against the connection blocks and the box body, a detection head slidably connected to the bottom of the box body in the vertical direction, and two positioning wheels rotatably connected to the connection blocks; the top pressure assembly abuts against the top of the tunnel, the compression springs are in a compressed state, and the positioning wheels abut against the grooves on the outer side of the rail.

[0008] By adopting the above technical solutions, the tractor in the present application plays a role in pulling the detection mechanism, enabling the detection mechanism to move along the track that needs to be measured, so as to detect the settlement of tracks of any length. The box body in the detection mechanism plays a role in supporting and position-limiting the installation of other structural parts. The constant-pressure component installed on the box body can abut against the top of the tunnel to fix the detection mechanism on the track. The connecting block plays a role in connecting the box body and the track. The positioning wheels installed on the connecting block abut against the track and can move under the action of the tractor. The compression spring installed in the box body plays a role in pressing and resetting the connecting block. The detection head installed at the bottom of the box body can be used to detect the position of the connecting block, so as to measure the phenomenon of track settlement. Cooperating with the tractor, the settlement of multiple sections of tracks can be measured. The present application has low requirements for environmental conditions, is sensitive in detection, can quickly measure tracks in any length range, and achieves the invention purpose of improving the efficiency of track settlement measurement work in underground tunnels and simplifying the operation process of measurement equipment.

[0009] Optionally, the top-pressure component includes a screw rod penetrating through the box body, a top plate rotatably connected to the top end of the screw rod, and a plurality of support wheels provided on the top plate.

[0010] By adopting the above technical solutions, the screw rod penetrating through the box body in the top-pressure component plays a role in support and height-adaptability adjustment. The top plate provides an installation position for the support wheels. The support wheels are structurally abutted against the top of the tunnel, so that the top-pressure component can move under the traction of the tractor while keeping in contact with the tunnel, thus meeting the usage requirements of multi-point measurement and achieving the invention purpose of improving the efficiency of track settlement measurement work in underground tunnels.

[0011] Optionally, the support wheels are hinged to the top plate.

[0012] By adopting the above technical solutions, the structural design of the support wheels being hinged to the top plate enables the relative angle between the support wheels and the top plate to be adaptively adjusted according to the usage requirements and the actual situation of the tunnel top, so that the top of the constant-pressure mechanism can stably fit and abut against curves of any angle on the tunnel top, further improving the applicable range and usage convenience of the present application and achieving the invention purpose of improving the efficiency of track settlement measurement work in underground tunnels.

[0013] Optionally, telescopic parts are symmetrically arranged at both ends of the top plate along the direction perpendicular to the track length, and the support wheels are symmetrically distributed on the two telescopic parts.

[0014] By adopting the above technical solutions, the telescopic parts symmetrically arranged at both ends of the top plate along the direction perpendicular to the track length can increase the extended length of the top plate, enabling the present application to fit and abut against tunnels with a larger width, and further improving the applicable range of the present application.

[0015] Optionally, the box body includes a bottom shell and a top cover detachably connected to the bottom shell.

[0016] By adopting the above technical solution, the bottom shell plays a role in supporting and limiting the installation of other part structures. The top cover installed on the top of the bottom shell plays a role in limiting the installation of the constant pressure mechanism, and together with the structures located inside the bottom shell, it provides protection. The detachable connection structure design between the top cover and the box body enables the user to conveniently repair, replace, and maintain the structures inside the bottom shell, achieving the invention purpose of improving the efficiency of the track settlement measurement work in the underground tunnel.

[0017] Optionally, a limiting cylinder sleeving the outside of the top pressing assembly is provided on the upper surface of the top cover; the limiting cylinder is in threaded cooperation with the top pressing assembly.

[0018] By adopting the above technical solution, the limiting cylinder installed on the upper surface of the top cover plays a role in assisting the support and position limitation of the lifting movement of the screw rod in the top pressing assembly, improving the stability during the lifting process of the screw rod and enhancing the support stability of the top cover for the screw rod.

[0019] Optionally, the axle of the positioning wheel is in threaded cooperation with the connecting block.

[0020] By adopting the above technical solution, the structural design of the threaded cooperation between the axle of the positioning wheel and the connecting block enables the pressing degree between the positioning wheel and the side wall of the railway track to be adaptively adjusted according to actual usage requirements, and facilitates the installation and disassembly process of this application, achieving the invention purpose of simplifying the operation process and improving the efficiency of the track settlement measurement work in the underground tunnel.

[0021] Optionally, the detection mechanism further includes a synchronous rotating shaft; the synchronous rotating shaft includes a synchronous gear rotatably connected to the connecting block and a rocker coaxial with the synchronous gear; the synchronous gear is simultaneously meshed with the axles of the two positioning wheels on the same connecting block.

[0022] By adopting the above technical solution, the structural design that the synchronous gear in the synchronous rotating shaft structure of the detection mechanism is simultaneously meshed with the axles of the two positioning wheels enables the user to control the synchronous rotation and pressing against or away from the side wall of the track of the positioning wheels on both sides of the same connecting block by rotating the rocker, further simplifying the installation and disassembly process of this application, achieving the invention purpose of improving the efficiency of the track settlement measurement work in the underground tunnel.

[0023] Optionally, the rocker is hinged to the synchronous gear.

[0024] By adopting the above technical solution, the structural design of the rocker arm hinged to the synchronous gear enables the rocker arm to be unfolded or folded according to actual usage requirements. Without affecting the normal use of the rocker arm, the space occupied by the rocker arm in the non-use state is reduced, and the possibility of collision with other objects during the movement of this application is decreased.

[0025] Optionally, a plurality of rollers are provided at the contact position between the connecting block and the upper end surface of the rail.

[0026] By adopting the above technical solution, the plurality of rollers installed at the contact position between the connecting block and the upper end surface of the rail can convert the sliding friction between the connecting block and the upper end surface of the rail into the rolling friction between the rollers and the upper end surface of the rail, significantly reducing the relative friction during the movement, and reducing equipment wear and operating noise.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. The tractor in this application plays a traction role on the detection mechanism, enabling the detection mechanism to move along the track that needs to be measured, so as to detect the settlement of tracks of any length. The box body in the detection mechanism plays a role in supporting and positioning the installation of other part structures. The constant pressure component installed on the box body can abut against the top of the tunnel to fix the detection mechanism on the track. The connecting block plays a role in connecting the box body and the track. The positioning wheels installed on the connecting block abut against the track and can move under the action of the tractor. The compression spring installed in the box body plays a role in pressing and resetting the connecting block. The detection head installed at the bottom of the box body can be used to detect the position of the connecting block, thereby measuring the phenomenon of track settlement. Cooperating with the tractor, the settlement of multiple sections of tracks can be measured. This application has low requirements for environmental conditions, is sensitive in detection, and can quickly measure tracks in any length range, achieving the invention purpose of improving the efficiency of track settlement measurement work in underground tunnels and simplifying the operation process of measurement equipment;

[0029] 2. The bottom shell in this application plays a role in supporting and limiting the installation of other part structures. The top cover installed on the top of the bottom shell plays a role in limiting the installation of the constant pressure mechanism and also plays a role in protecting the structures located inside the bottom shell. The detachable connection structure design between the top cover and the box body can facilitate users to repair, replace, and maintain the structures inside the bottom shell, achieving the invention purpose of improving the efficiency of track settlement measurement work in underground tunnels;

[0030] 3. The structural design of the synchronous gear in the synchronous rotating shaft structure of the detection mechanism in this application, which meshes with the axles of two positioning wheels simultaneously, enables the user to control the synchronous rotation and the pressing against or moving away from the side wall of the track of the positioning wheels on both sides of the same connecting block by rotating the rocker, further simplifying the installation and disassembly process of this application and achieving the invention purpose of improving the efficiency of the track settlement measurement work in the underground tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 FIG. is a schematic structural diagram of a track settlement measurement device disclosed in an embodiment of this application.

[0032] Figure 2 FIG. is a schematic cross-sectional structural diagram of the detection mechanism in an embodiment of this application.

[0033] Figure 3 FIG. is a schematic structural diagram of the top pressing assembly in an embodiment of this application.

[0034] Figure 4 FIG. is a schematic structural diagram of the synchronous rotating shaft in an embodiment of this application.

[0035] DESCRIPTION OF THE REFERENCE NUMERALS: 1, tractor; 2, detection mechanism; 21, box body; 22, top pressing assembly; 23, connecting block; 24, compression spring; 25, detection head; 26, positioning wheel; 27, synchronous rotating shaft; 211, bottom shell; 212, top cover; 221, screw rod; 222, top plate; 223, support wheel; 231, roller; 271, synchronous gear; 272, rocker. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] The following will Figure 1 - be further described in detail with reference to the Figure 4 drawings to this application.

[0037] The foundation texture of the underground tunnel is relatively soft, and the underground water resources are relatively rich, making the track settlement phenomenon prone to occur. Therefore, it is necessary to regularly measure the tracks in the underground tunnel. Currently, the common track settlement measurement equipment is a settlement observation instrument. The use of the settlement observation instrument requires a horizontal observation object to be set in advance as a reference object, and the settlement observation instrument needs to be leveled before use. If the track mileage to be measured is long, the workload of using the settlement observation instrument for track settlement measurement is extremely large. In addition, the environmental conditions in the underground tunnel are difficult to meet the requirements of the settlement observation instrument for the environment. In order to improve the efficiency of the track settlement measurement work in the underground tunnel and simplify the operation process of the measurement equipment, this application provides a track settlement measurement device.

[0038] An embodiment of this application discloses a track settlement measurement device. Refer to Figure 1, the track settlement measurement device includes a tractor 1 and a detection mechanism 2. Both the tractor 1 and the detection mechanism 2 are installed at the starting position of the track section in the underground tunnel where track settlement measurement is required. The tractor 1 and the detection mechanism 2 are rotatably connected by a coupler. The tractor 1 is provided with a seat, a drive motor, wheels, a handle, a control panel, etc.

[0039] Referring to Figure 1 and Figure 2 , the detection mechanism 2 includes a box body 21, a top pressing assembly 22, a connecting block 23, a compression spring 24, a detection head 25, a positioning wheel 26 and a synchronous rotating shaft 27. The box body 21 includes a bottom shell 211 and a top cover 212. The bottom shell 211 and the top cover 212 are detachably connected by a plurality of bolts. A limiting cylinder is vertically arranged on the upper surface of the top cover 212. The limiting cylinder can be a hollow cylinder communicating with the bottom shell 211, and the inner wall of the limiting cylinder is provided with internal threads. The limiting cylinder sleeves the bottom of the top pressing assembly 22 and is in threaded cooperation with the top pressing assembly 22. The number of the connecting blocks 23 is 2. The two connecting blocks 23 are mirror-symmetrical about the center of the box body 21, are respectively installed on both sides of the box body 21, and are slidably connected with the box body 21 along the direction perpendicular to the ground. A roller 231 is installed at the position where the connecting block 23 contacts the upper surface of the track by a rotational connection method. The roller 231 can be a solid metal cylinder with an axis perpendicular to the track length direction. The number of the rollers 231 on each connecting block 23 can be 2, and the two rollers 231 are symmetrically installed on both sides of the connecting block 23 about the central position. A plurality of compression springs 24 are installed in the box body 21, and the compression springs 24 are in a compressed state. One end of the compression spring 24 abuts against the lower surface of the top cover 212, and the other end abuts against the upper surface of the connecting block 23 located in the box body 21. Each connecting block 23 is provided with 3 compression springs 24. The compression springs 24 are evenly arranged along the length direction of the connecting block 23. The detection head 25 is installed at the bottom of the box body 21 and penetrates through the lower surface of the bottom shell 211. The detection head 25 is in threaded connection with the bottom shell 211, and a pressure sensor is installed at the detection end of the detection head 25, which can judge whether the connecting block 23 is in contact. The detection head 25 is electrically connected with the detection device, and the detection device can record the position and time when the detection head 25 generates an electrical signal. Two positioning wheels 26 are symmetrically installed on each connecting block 23. The axle of the positioning wheel 26 penetrates through the connecting block 23 and is in threaded cooperation with the connecting block 23. The positioning wheel 26 abuts against the outer side surface of the rail. A cylindrical spur gear is fixedly sleeved on the axle of the positioning wheel 26.

[0040] Referring to Figure 2 and Figure 3, the top pressing assembly 22 includes a screw rod 221, a top plate 222 and a supporting wheel 223. Among them, the screw rod 221 is arranged through the box body 21 and is in threaded cooperation with the limiting cylinder structure on the top cover 212. The top of the screw rod 221 is rotatably connected to the top plate 222. Four supporting wheels 223 are installed on the upper surface of the top plate 222. The supporting wheel 223 is hinged to the top plate 222. A chain transmission wheel is fixedly sleeved at the bottom of the screw rod 221, and the chain transmission wheel can be chain transmission connected to the motor output shaft on the tractor 1, so as to adjust the rotation and lifting of the screw rod 221 by using the tractor 1. Telescopic parts are symmetrically installed at both ends of the top plate 222 along the direction perpendicular to the length of the track, and the telescopic parts are slidably connected to the top plate 222. The supporting wheels 223 are symmetrically distributed on the two telescopic parts.

[0041] Referring to Figure 2 and Figure 4 , the synchronous rotating shaft 27 includes a synchronous gear 271 and a rocker 272. Among them, the wheel shaft of the synchronous gear 271 is arranged through the connecting block 23 and is rotatably connected to the block. The synchronous gear 271 is simultaneously meshed with the cylindrical spur gears on the wheel shafts of the two positioning wheels 26 on the same connecting block 23. The rocker 272 is installed on the wheel shaft of the synchronous gear 271 by means of hinge, and shaking the rocker 272 can control the rotation of the synchronous gear 271. At the same time, the rocker 272 can be rotated and stored inside to reduce space occupation.

[0042] The implementation principle of a track settlement measurement device according to an embodiment of the present application is as follows: The user first uses a chain to connect the drive motor on the tractor 1 and the screw rod 221, so that the screw rod 221 rotates under the drive of the drive motor to lift the top plate 222 until the part of the connecting block 23 located inside the box body 21 is separated from the detection head 25, and then the motor is stopped. At this time, adjust the included angle between the supporting wheel 223 and the top plate 222 according to the bending angle of the tunnel top, so that the supporting wheel 223 can vertically contact the top of the underground tunnel. By rotating and adjusting the height position of the detection head 25 according to the detection requirements, the detection sensitivity of the present application can be changed. Connect the detection head 25 and the detection device, and start the tractor 1 to detect the settlement of the track.

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An orbital settlement measurement device, characterized in that: It includes a tractor (1) and a detection mechanism (2) connected to the tractor (1); the detection mechanism (2) includes a box body (21) connected to the tractor (1), a top pressing assembly (22) arranged on the top of the box body (21), two connecting blocks (23) slidably connected to the box body (21) in the vertical direction, a plurality of compression springs (24) with both ends respectively abutted against the connecting blocks (23) and the box body (21), a detection head (25) slidably connected to the bottom of the box body (21) in the vertical direction, and two positioning wheels (26) rotatably connected to the connecting blocks (23); the top pressing assembly (22) abuts against the top of the tunnel, the compression springs (24) are in a compressed state, and the positioning wheels (26) abut against the grooves on the outer side of the rail; the top pressing assembly (22) includes a screw rod (221) penetrating through the box body (21), a top plate (222) rotatably connected to the top end of the screw rod (221), and a plurality of supporting wheels (223) arranged on the top plate (222); the supporting wheels (223) are hinged to the top plate (222); telescopic parts are symmetrically arranged at both ends of the top plate (222) along the direction perpendicular to the length of the track, and the supporting wheels (223) are symmetrically distributed on the two telescopic parts; the detection mechanism (2) further includes a synchronous rotating shaft (27); the synchronous rotating shaft (27) includes a synchronous gear (271) rotatably connected to the connecting block (23) and a rocker (272) coaxially arranged with the synchronous gear (271); the synchronous gear (271) is simultaneously meshed with the axles of the two positioning wheels (26) on the same connecting block (23).

2. The track settlement measurement device according to claim 1, wherein: The box body (21) includes a bottom shell (211) and a top cover (212) detachably connected to the bottom shell (211).

3. The track settlement measuring device according to claim 2, characterized in that: A limiting cylinder sleeved outside the top pressing assembly (22) is arranged on the upper surface of the top cover (212); the limiting cylinder is in threaded cooperation with the top pressing assembly (22).

4. The track settlement measurement device according to claim 1, characterized in that: The axle of the positioning wheel (26) is in threaded cooperation with the connecting block (23).

5. The track settlement measurement device according to claim 1, characterized in that: The rocker (272) is hinged to the synchronous gear (271).

6. The track settlement measurement device according to claim 1, characterized in that: A plurality of rollers (231) are arranged at the contact position between the connecting block (23) and the upper end surface of the rail.

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