A zero-loss fastening in-orbit shear force sensor mounting device

Abstract

The utility model belongs to railway technical field especially is a kind of zero loss fastening in rail shear force sensor installation device, including two fixed plates, the side of two fixed plates mutually close is all set with fixed slot, track is movably placed in two fixed slots, the both sides of track all movably abut with force plate, the side of force plate is provided with shear force sensor, shear force sensor is provided with convenient installation mechanism on force plate.The utility model structure design is reasonable, by the extrusion ring of rotation, four connecting rods and arc clamping plate can be synchronously extruded to inboard, so that four arc clamping plates can be rigidly clamped and fixed to shear force sensor, greatly improve the firmness of installation, make installation more convenient and efficient simultaneously, and by rotating upper hand wheel, two force plates can be driven mutually close and abut in the both sides of track, so that shear force sensor detects the shear of track.

Description

Technical Field

[0001] This utility model relates to the field of railway technology, and in particular to a zero-loss fastening on-rail shear force sensing installation device. Background Technology

[0002] Shear force sensors, as crucial sensors for measuring vertical forces, are used in train operation safety monitoring systems for continuous measurement of wheel-rail forces. Accurate sensor data allows for real-time monitoring of vehicle operation quality, ensuring railway transportation safety. Their measurement accuracy significantly impacts the accuracy of system monitoring and forecasting data. Monitoring the stress state of tracks during construction and subsequent use is essential for monitoring train operation and track structure. This necessitates the application of shear force sensors on both sides of the rails to detect their condition. Drill-free shear force sensors, due to their improved installation method, accurately measure shear forces without drilling into the rails, preserving the rail structure and its working condition and lifespan. They are widely used in locomotive and rolling stock weighing and wheel-rail force measurement.

[0003] A search revealed a non-drilling on-orbit mounting device for a shear force sensor, Chinese patent number CN219007823U. This device comprises a first positioning block and a second positioning block. Each second positioning block has a threaded through hole, within which an adjusting screw is installed. One end of the adjusting screw is rotatably connected to the first positioning block, while the other end extends out of the second positioning block after passing through the threaded through hole. Both the first and second positioning blocks have slots. Each of the first and second positioning blocks also has a mounting assembly, which includes an adjusting block, a mounting plate, a transmission plate, a rotating screw, and a first handle.

[0004] However, the above-mentioned non-drilling on-rail mounting device for force sensors still has shortcomings. While using the elasticity of springs and positioning plates to install and fix the shear force sensor is relatively convenient and efficient, the springs have a certain degree of elasticity, which can easily lead to instability and reduce the effectiveness of use. Furthermore, when pressing the shear force sensor on the mounting plate against the detection surface of the rail by rotating the screws, personnel need to rotate the screws one by one, making the operation cumbersome and inconvenient. Therefore, we propose a zero-loss fastening on-rail shear force sensor mounting device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings mentioned above by proposing a zero-loss fastening on-rail shear force sensing installation device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A zero-loss fastening on-rail shear force sensor mounting device includes two fixed plates. Each fixed plate has a fixing groove on one side close to the other. A track is movably placed in the two fixing grooves. A force measuring plate is movably abutted against on both sides of the track. A shear force sensor is provided on one side of the force measuring plate. A convenient installation mechanism is provided between the shear force sensor and the force measuring plate. A synchronous adjustment mechanism is provided between the two fixed plates and the two force measuring plates. A clamping mechanism is provided between the two fixed plates.

[0008] As a preferred embodiment of this utility model, the clamping mechanism includes a threaded rod rotatably connected to one side of the left fixed plate, a right fixed plate threadedly sleeved on the outside of the threaded rod, two limiting rods fixedly connected to one side of the left fixed plate, and the right fixed plate slidably sleeved on the outside of the two limiting rods.

[0009] As a preferred embodiment of this invention, one end of the threaded rod is fixedly connected to a lower handwheel.

[0010] As a preferred embodiment of this utility model, the convenient installation mechanism includes a mounting ring rotatably connected to the outside of the force measuring plate. The mounting ring has an annular groove, and a compression ring is fixedly connected to the inner wall of the annular groove. The inner wall of the compression ring has four clearance grooves. Connecting rods are movably abutted against the inner walls of the compression ring. Arc-shaped clamps are fixedly connected to the inner ends of the connecting rods. The four arc-shaped clamps are movably abutted against the outside of the shear force sensor. A connecting frame is fixedly connected to the top of the mounting ring, and a screw is connected to the top of the connecting frame. A threaded groove is opened on the top of the force measuring plate, and the screw is threaded into the threaded groove.

[0011] In a preferred embodiment of this invention, a bearing is fixedly connected to one side of the force measuring plate, and the mounting ring is fixedly sleeved inside the inner ring of the bearing.

[0012] As a preferred embodiment of this invention, the arc-shaped clamp is slidably connected to one side of the force measuring plate.

[0013] In a preferred embodiment of this invention, the synchronous adjustment mechanism includes a slide groove formed on the top of a fixed plate. Drive screws are rotatably connected to the inner walls of both sides of the slide groove. The outer sides of the two drive screws are provided with external threads in opposite directions. A square rod is fixedly connected to one end of the left drive screw, and a square groove is formed at one end of the right drive screw. The square rod is slidably fitted into the square groove. Slide plates are threaded onto the outer sides of both drive screws. A movable plate is fixedly connected to the top of the slide plate. Three crossbars are fixedly connected to the inner side of the movable plate, and all three crossbars are fixedly connected to the outer ring of the bearing.

[0014] As a preferred embodiment of this utility model, one end of the drive screw on the left side is fixedly connected to an upper handwheel, and the same guide rod is fixedly connected to the inner walls of both sides of the slide groove, with the two slide plates respectively slidably sleeved on the outer side of the corresponding guide rod.

[0015] In this utility model, a zero-loss fastening on-rail shear force sensor installation device is described. By rotating the threaded rod with a handwheel, two fixing plates are fixed to the outside of the track. The shear force sensor is placed between four arc-shaped clamps. The mounting ring is rotated by a rotating handle on the mounting ring, which drives the compression ring to rotate. The rotation causes the connecting rod located in the clearance groove to gradually disengage until the inner wall of the compression ring abuts against one end of the connecting rod. At this point, under the compression of the inner wall of the compression ring, the connecting rod and the arc-shaped clamps are firmly pressed against the outside of the shear force sensor, making the installation more convenient and efficient. When the screw is rotated to align with the threaded groove, it reaches the fixed position. At this point, the screw is tightened so that it is screwed into the threaded groove to lock the mounting ring, which can be rigidly clamped and fixed, greatly improving the stability of the installation.

[0016] In this utility model, the zero-loss fastening on-rail shear force sensing installation device is finally driven by rotating a drive screw through a handwheel, which in turn drives two drive screws to rotate synchronously through a square rod and a square groove. Since the external threads of the two drive screws rotate in opposite directions, they drive two slide plates, a movable plate, three crossbars and a force measuring plate to approach each other and abut against both sides of the track, so as to detect the shear force of the track.

[0017] This utility model has a reasonable structural design. Through the rotating compression ring, the four connecting rods and the arc-shaped clamping plates can be squeezed inward simultaneously, so that the four arc-shaped clamping plates can rigidly clamp and fix the shear force sensor, which greatly improves the stability of the installation and makes the installation more convenient and efficient. Furthermore, by rotating the upper handwheel, the two force measuring plates can be driven to approach each other and abut against both sides of the track, so that the shear force sensor can detect the shear force of the track. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a zero-loss fastening on-orbit shear force sensing installation device proposed in this utility model;

[0019] Figure 2 This is a partial sectional view of a zero-loss fastening on-orbit shear force sensing installation device proposed in this utility model;

[0020] Figure 3 for Figure 2 A schematic diagram of the structure of part A;

[0021] Figure 4 This is a side sectional view of the mounting ring of a zero-loss fastening on-orbit shear force sensing mounting device proposed in this utility model.

[0022] In the diagram: 1. Fixed plate; 2. Track; 3. Clamping mechanism; 4. Synchronous adjustment mechanism; 5. Shear force sensor; 6. Convenient installation mechanism; 7. Force measuring plate; 8. Fixed groove; 31. Lower handwheel; 32. Threaded rod; 33. Limiting rod; 41. Square rod; 42. Drive screw; 43. Crossbar; 44. Slide plate; 45. Slide groove; 46. Upper handwheel; 47. Guide rod; 48. Moving plate; 60. Bearing; 61. Mounting ring; 62. Annular groove; 63. Compression ring; 64. Clearance groove; 65. Connecting rod; 66. Arc-shaped clamping plate; 67. Connecting frame; 68. Screw; 69. Threaded groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figures 1-4 A zero-loss fastening on-rail shear force sensor installation device includes two fixed plates 1. Each of the two fixed plates 1 has a fixed groove 8 on one side close to each other. A rail 2 is movably placed in the two fixed grooves 8. A force measuring plate 7 is movably abutted on both sides of the rail 2. A shear force sensor 5 is provided on one side of the force measuring plate 7. A convenient installation mechanism 6 is provided on the shear force sensor 5 and the force measuring plate 7. A synchronous adjustment mechanism 4 is provided between the two fixed plates 1 and the two force measuring plates 7. A clamping mechanism 3 is provided between the two fixed plates 1.

[0025] Furthermore, refer to Figure 1 and Figure 2 The clamping mechanism 3 includes a threaded rod 32 rotatably connected to one side of the left fixed plate 1, and the right fixed plate 1 threadedly sleeved on the outside of the threaded rod 32. Two limiting rods 33 are fixedly connected to one side of the left fixed plate 1, and the right fixed plate 1 is slidably sleeved on the outside of the two limiting rods 33. A lower handwheel 31 is fixedly connected to one end of the threaded rod 32.

[0026] Using the above solution: by rotating the threaded rod 32 through the lower handwheel 31, the two fixing plates 1 are brought close to each other and fixed on the outside of the track 2.

[0027] Furthermore, refer to Figures 1-4The convenient installation mechanism 6 includes an installation ring 61 rotatably connected to the outside of the force measuring plate 7. An annular groove 62 is provided inside the installation ring 61. A compression ring 63 is fixedly connected to the inner wall of the annular groove 62. Four clearance grooves 64 are provided on the inner wall of the compression ring 63. Connecting rods 65 are movably abutted against the inner walls of the compression ring 63. An arc-shaped clamping plate 66 is fixedly connected to the inner end of the connecting rod 65. The four arc-shaped clamping plates 66 are movably abutted against the outside of the shear force sensor 5. A connecting frame 67 is fixedly connected to the top of the installation ring 61. A screw 68 is connected to the top of the connecting frame 67. A threaded groove 69 is provided on the top of the force measuring plate 7. The screw 68 is threaded into the threaded groove 69. The arc-shaped clamping plate 66 is slidably connected to one side of the force measuring plate 7. A bearing 60 is fixedly connected to one side of the force measuring plate 7. The installation ring 61 is fixedly fitted into the inner ring of the bearing 60.

[0028] Using the above scheme: the shear force sensor 5 is placed between four arc-shaped clamps 66. The mounting ring 61 is rotated by the rotating handle on the mounting ring 61. The mounting ring 61 drives the compression ring 63 to rotate, causing the connecting rod 65 located in the clearance groove 64 to gradually disengage until the inner wall of the compression ring 63 abuts against one end of the connecting rod 65. At this time, under the compression of the inner wall of the compression ring 63, the connecting rod 65 and the arc-shaped clamps 66 can be firmly pressed against the outside of the shear force sensor 5, making the installation more convenient and efficient. When the screw 68 is rotated to align with the threaded groove 69, it reaches the fixed position. At this time, the screw 68 is tightened so that the screw 68 is screwed into the threaded groove 69 to lock the mounting ring 61, which can be rigidly clamped and fixed, greatly improving the installation firmness.

[0029] Furthermore, refer to Figure 1 and Figure 2 The synchronous adjustment mechanism 4 includes a slide groove 45 on the top of the fixed plate 1. Drive screws 42 are rotatably connected to the inner walls of both sides of the slide groove 45. The outer sides of the two drive screws 42 are provided with external threads in opposite directions. One end of the left drive screw 42 is fixedly connected to a square rod 41, and one end of the right drive screw 42 is provided with a square groove. The square rod 41 is slidably fitted in the square groove. Slide plates 44 are threaded on the outer sides of both drive screws 42. A movable plate 48 is fixedly connected to the top of the slide plate 44. Three crossbars 43 are fixedly connected to the inner side of the movable plate 48. The three crossbars 43 are all fixedly connected to the outer ring of the bearing 60. One end of the left drive screw 42 is fixedly connected to an upper handwheel 46. The same guide rod 47 is fixedly connected to the inner walls of both sides of the slide groove 45. The two slide plates 44 are slidably fitted on the outer sides of the corresponding guide rods 47.

[0030] The above scheme is adopted: by rotating a drive screw 42 through the upper handwheel 46, the two drive screws 42 are driven to rotate synchronously through the square rod 41 and the square groove (not shown in the figure, opened on the right end of the drive screw 42 on the right side). Since the external threads of the two drive screws 42 are turned in opposite directions, the two slide plates 44, the moving plate 48, the three crossbars 43 and the force measuring plate 7 are driven to approach each other and abut against both sides of the track 2, so as to detect the shear force of the track 2.

[0031] In this invention, during use, the threaded rod 32 is rotated by the lower handwheel 31, fixing the two fixing plates 1 to the outside of the track 2. The shear force sensor 5 is placed between the four arc-shaped clamping plates 66. The mounting ring 61 is rotated by the rotating handle on the mounting ring 61, which drives the compression ring 63 to rotate. The rotation causes the connecting rod 65 located in the clearance groove 64 to gradually disengage until the inner wall of the compression ring 63 abuts against one end of the connecting rod 65. At this point, under the compression of the inner wall of the compression ring 63, the connecting rod 65 and the arc-shaped clamping plate 66 are firmly pressed against the outside of the shear force sensor 5, making the installation more convenient and efficient. The screw 68 is rotated to... When the threaded grooves 69 are aligned, they reach the fixed position. At this point, tighten the screws 68 so that they screw into the threaded grooves 69 to lock the mounting ring 61, which can be rigidly clamped and fixed, greatly improving the stability of the installation. Finally, turn one drive screw 42 by turning the handwheel 46. Through the square rod 41 and the square groove (not shown in the figure, opened on the right end of the drive screw 42 on the right side), the two drive screws 42 are driven to rotate synchronously. Since the external threads of the two drive screws 42 turn in opposite directions, the two slide plates 44, the moving plate 48, the three crossbars 43 and the force measuring plate 7 are driven to approach each other and abut against both sides of the track 2, so as to detect the shear force of the track 2.

[0032] In addition, the device can be installed at intervals along the track 2, so that shear force sensors 5 can be installed at intervals to perform segmented shear force detection on the track 2.

Claims

1. A zero-loss fastening in-rail shear force sensing mounting device, characterized by, It includes two fixed plates (1), each with a fixed groove (8) on one side close to the other. A track (2) is movably placed in the two fixed grooves (8). A force measuring plate (7) is movably abutted on both sides of the track (2). A shear force sensor (5) is provided on one side of the force measuring plate (7). A convenient installation mechanism (6) is provided on the shear force sensor (5) and the force measuring plate (7). A synchronous adjustment mechanism (4) is provided between the two fixed plates (1) and the two force measuring plates (7). A clamping mechanism (3) is provided between the two fixed plates (1).

2. A zero-loss fastening in-orbit shear force sensing mounting device according to claim 1, wherein, The clamping mechanism (3) includes a threaded rod (32) rotatably connected to one side of the left fixed plate (1), and the right fixed plate (1) is threadedly sleeved on the outside of the threaded rod (32). Two limiting rods (33) are fixedly connected to one side of the left fixed plate (1), and the right fixed plate (1) is slidably sleeved on the outside of the two limiting rods (33).

3. A zero-loss fastening in-orbit shear force sensor mounting device according to claim 2, wherein, One end of the threaded rod (32) is fixedly connected to a lower handwheel (31).

4. A zero-loss fastening in-orbit shear force sensor mounting device according to claim 1, wherein, The convenient installation mechanism (6) includes an installation ring (61) rotatably connected to the outside of the force measuring plate (7). An annular groove (62) is provided in the installation ring (61). A compression ring (63) is fixedly connected to the inner wall of the annular groove (62). Four clearance grooves (64) are provided on the inner wall of the compression ring (63). Connecting rods (65) are movably abutted on the inner walls of the compression ring (63). An arc-shaped clamp (66) is fixedly connected to the inner end of the connecting rod (65). The four arc-shaped clamps (66) are movably abutted on the outside of the shear force sensor (5). A connecting frame (67) is fixedly connected to the top of the installation ring (61). A screw (68) is connected to the top of the connecting frame (67). A threaded groove (69) is provided on the top of the force measuring plate (7). The screw (68) is threaded into the threaded groove (69).

5. A zero-loss fastening in-orbit shear force sensing mounting device according to claim 4, wherein, A bearing (60) is fixedly connected to one side of the force measuring plate (7), and the mounting ring (61) is fixedly sleeved inside the inner ring of the bearing (60).

6. A zero-loss fastening in-orbit shear force sensing mounting device according to claim 4, wherein, The arc-shaped clamp (66) is slidably connected to one side of the force measuring plate (7).

7. A zero-loss fastening in-orbit shear force sensor mounting device according to claim 5, wherein, The synchronous adjustment mechanism (4) includes a slide groove (45) on the top of the fixed plate (1). Drive screws (42) are rotatably connected to the inner walls of both sides of the slide groove (45). The outer sides of the two drive screws (42) are provided with external threads with opposite directions of rotation. One end of the drive screw (42) on the left side is fixedly connected to a square rod (41), and one end of the drive screw (42) on the right side is provided with a square groove. The square rod (41) is slidably sleeved in the square groove. The outer sides of both drive screws (42) are threaded with a sliding plate (44). The top of the sliding plate (44) is fixedly connected to a movable plate (48). The inner side of the movable plate (48) is fixedly connected to three crossbars (43). The three crossbars (43) are all fixedly connected to the outer ring of the bearing (60).

8. A zero-loss fastening in-orbit shear force sensing mounting device according to claim 7, wherein, One end of the left driving screw rod (42) is fixedly connected with an upper hand wheel (46), one guiding rod (47) is fixedly connected on the inner wall of the two sides of the sliding groove (45), and the two sliding plates (44) are respectively and slidingly sleeved on the outer sides of the corresponding guiding rods (47).

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