Laser displacement monitor

Abstract

The invention relates to the technical field of laser displacement monitors, in particular to a laser displacement monitor which comprises an equipment frame, an adjusting mechanism is fixedly connected to the equipment frame, an adjusting frame is arranged above the equipment frame, and two rotating frames are rotationally connected to the adjusting frame in a symmetrical structure. A laser displacement sensor is fixedly installed on the inner wall of the lower side of the rotating frame, a marking mechanism is rotatably connected to the inner wall of one end of the rotating frame, a retracting and releasing mechanism is rotatably connected to the rotating frame, and track frames are arranged on the two sides of the equipment frame. The electric track wheels on the two track frames can be inserted into the side wall of the track, so that the laser displacement sensor is driven to move on the track, and more track areas are covered. Compared with a fixed laser displacement monitor, the laser displacement monitor can only monitor a fixed position or range and cannot dynamically adjust the position. And by moving on the track, track state data of more areas can be obtained, so that comprehensive track monitoring is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of laser displacement monitors, and in particular to a laser displacement monitor. Background Art

[0002] Laser displacement monitor is a precision instrument that uses laser technology to measure the displacement, deformation and position change of an object or surface relative to the sensor. It is widely used in many fields such as industry, manufacturing, transportation, etc. It can achieve high-precision, non-contact displacement measurement and has the advantages of high sensitivity, fast response and durability.

[0003] In the prior art, the document with publication number CN207688832U introduces a three-dimensional laser displacement meter rail monitor. When monitoring the dynamic lateral amplitude of the rail, the instrument installs the laser at the bottom of the pile so that it emits a laser beam to the target installed on the sleeper. When lateral amplitude occurs, the target and the laser will produce relative displacement based on the plane coordinate system of the X-axis and the Y-axis. The processor in the target can demodulate this relative displacement and transmit it to the control box installed in the RTU to realize dual-axis deflection acquisition. At the same time, the laser monitor can also monitor the movement of the sleeper in the Z-axis direction. In addition, the instrument fixes the laser with eight set screws, and can be adjusted without dead angles within the measuring range. It has the characteristics of easy on-site installation and streamlined structure. It is suitable for installation requirements in various special occasions, which can not only reduce costs, but also be suitable for mass production and sales promotion.

[0004] However, this monitoring method in the existing technology monitors the track through fixed installation, which is suitable for monitoring short sections of track. However, for dynamic and wide-area monitoring of long tracks, there are some shortcomings, such as limiting the flexibility and adaptability of the equipment, increasing the complexity of manual operation and installation; resulting in low monitoring efficiency and possible interference with rail transit; and requiring additional maintenance work, which in turn increases costs.

[0005] In summary, the prior art lacks a dynamic monitoring technology for monitoring the activities of laser displacement monitors on tracks. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a laser displacement monitor.

[0007] To achieve the above purpose, the technical solution adopted by the present invention is: a laser displacement monitor, including an equipment frame, an adjustment mechanism is fixedly connected to the equipment frame, an adjustment frame is arranged above the equipment frame, two rotating frames are symmetrically structured and rotatably connected on the adjustment frame, a laser displacement sensor is fixedly installed on the inner wall of the lower side of the rotating frame, a marking mechanism is rotatably connected to the inner wall of one end of the rotating frame, a retracting and releasing mechanism is rotatably connected on the equipment frame, and track frames are arranged on both sides of the equipment frame.

[0008] Preferably, the adjustment mechanism includes a motor A, which is fixedly connected to the inner wall of the equipment frame, and a bidirectional screw is fixedly connected to the output end of the motor A. The outer walls of both ends of the bidirectional screw are threadedly connected with adjustment blocks, and an adjustment rod is rotatably connected to the adjustment block, and the other end of the adjustment rod is rotatably connected to the inner wall of the adjustment frame.

[0009] Preferably, the inner wall of the adjustment frame is symmetrically structured and fixedly connected with two limit bars, a sliding rod is slidably provided on the limit bar, one end of the sliding rod is fixedly connected with a transmission rack, the other end of the sliding rod is rotatably connected with a connecting rod, and the other end of the connecting rod is rotatably connected to the adjustment rod.

[0010] Preferably, a rotating shaft is fixedly connected to one end of the rotating frame, and the rotating shaft is rotatably connected to the adjusting frame. A transmission wheel is fixedly connected to one end of the rotating shaft located in the adjusting frame, and the transmission wheel is meshed with a transmission rack for transmission. A liquid storage cavity is provided on the inner wall of the rotating frame, and a rubber plug is movably inserted at the opening at the top of the rotating frame.

[0011] Preferably, the marking mechanism includes a marking frame, which is rotatably connected to the inner wall of the rotating frame, one end of the marking frame is fixedly connected to a motor B, the motor B is fixedly connected to the rotating frame, one end of the marking frame is a hollow structure, one end of the marking frame is fixedly connected to a sponge pad, and the marking frame is provided with a plurality of liquid outlet holes at the position of the sponge pad.

[0012] Preferably, a liquid squeezing tube is fixedly connected to the marking frame, the output end of the liquid squeezing tube is connected to the hollow inner wall of the marking frame, the input end of the liquid squeezing tube is fixedly connected to a liquid guide tube, the other end of the liquid guide tube passes through the marking frame and is connected to the liquid storage chamber in the rotating frame, one end of the liquid squeezing tube passes through a contact rod that is slidably fitted, the outer end of the contact rod is movably contacted with the inner wall of the rotating frame, the inner end of the contact rod is fixedly connected to an extrusion plug, the extrusion plug is slidably fitted with the inner wall of the liquid squeezing tube, a tension spring is fixedly connected to the extrusion plug, and the other end of the tension spring is fixedly connected to the inner wall of the liquid squeezing tube.

[0013] Preferably, the retracting and extending mechanism includes a bidirectional worm gear, which is rotatably connected to the equipment frame, and worm wheels are meshingly provided at both ends of the bidirectional worm gear. The worm wheel is rotatably connected to the equipment frame, a driving wheel is fixedly connected to the other end of the worm wheel, and a gear A is fixedly connected to the middle of the bidirectional worm gear.

[0014] Preferably, two electric track wheels are rotatably connected to one side of the track frame, and a rotating rod is rotatably connected to one side of the track frame in a symmetrical structure. The other end of the rotating rod is rotatably connected to the equipment frame, and one end of the rotating rod connected to the equipment frame is fixedly connected to a driven wheel, and the driven wheel is meshed with the driving wheel for transmission.

[0015] Preferably, a push handle is rotatably connected to one side of the equipment frame, and a gear B is fixedly connected to one side of the push handle, and the gear B is meshed with the gear A for transmission.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up the track frame and the retracting and releasing mechanism, the electric track wheels on the two track frames can be inserted into the side wall of the track, thereby driving the laser displacement sensor to move on the track to cover more track areas. Compared with the fixed laser displacement monitor, it can only monitor a fixed position or range and cannot dynamically adjust the position. By moving on the track, the track status data of more areas can be obtained in real time, thereby realizing comprehensive track monitoring. This method has greater advantages, especially for railway systems with long distances or complex sections. At the same time, driven by the retracting and releasing mechanism, the track frame moves to the lower side of the equipment frame, which is convenient for the device to move on the ground when not in use.

[0017] 2. By setting up an adjustment mechanism, the rotating frame can be driven to move up and rotate above the track, so that the laser displacement sensor can monitor the track. At the same time, when an upcoming train is detected, the adjustment mechanism can automatically retract the rotating frame so that the train can pass smoothly without collision or affecting the safe operation of the train due to the equipment blocking the track space. This improves the operating efficiency of the system, reduces the possibility of human operating errors, makes the monitoring process more accurate and smooth, enables uninterrupted track monitoring, and effectively improves the efficiency of track inspection. Especially during continuous monitoring and maintenance, ensure that no important monitoring data is missed.

[0018] 3. By setting a marking mechanism on the rotating frame, when the laser displacement sensor detects that there is a problem with the track, the marking mechanism drives the marking frame to rotate while squeezing the paint in the extrusion tube onto the sponge pad and applying it on the side wall of the track for marking, which is convenient for maintenance personnel to quickly locate and handle faults, reduce ineffective work, and ensure the efficiency and accuracy of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of a laser displacement monitor of the present invention; Figure 2 It is a schematic diagram of the structure of an adjustment mechanism of a laser displacement monitor of the present invention; Figure 3 It is a partial cross-sectional schematic diagram of the structure of an adjustment frame of a laser displacement monitor of the present invention; Figure 4 It is a partial cross-sectional schematic diagram of a rotating frame structure of a laser displacement monitor of the present invention; Figure 5 It is a partial cross-sectional schematic diagram of the marking mechanism structure of a laser displacement monitor of the present invention; Figure 6 It is a schematic diagram of the structure of a retractable mechanism of a laser displacement monitor of the present invention; Figure 7 It is a schematic diagram of the track frame structure of a laser displacement monitor of the present invention; Figure 8 The figure is a schematic diagram of the overall structure of a laser displacement monitor according to the present invention applied on a track.

[0020] The following are marked in the figure: 1, equipment frame; 2, adjustment mechanism; 3, adjustment frame; 4, rotating frame; 5, laser displacement sensor; 6, marking mechanism; 7, retracting mechanism; 8, track frame; 201, motor A; 202, two-way screw rod; 203, adjustment block; 204, adjustment rod; 301, limit bar; 302, sliding rod; 303, transmission rack; 304, connecting rod; 401, rotating shaft; 402, transmission wheel; 403, storage Liquid chamber; 404, rubber plug; 601, marking frame; 602, motor B; 603, sponge pad; 604, liquid extrusion tube; 605, liquid guide tube; 606, contact rod; 607, extrusion plug; 608, tension spring; 701, bidirectional worm; 702, worm wheel; 703, driving wheel; 704, gear A; 801, electric track wheel; 802, rotating rod; 803, driven wheel; 101, push handle; 102, gear B. DETAILED DESCRIPTION

[0021] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0022] like Figure 1-Figure 8A laser displacement monitor shown in the figure includes an equipment frame 1, an adjustment mechanism 2 is fixedly connected to the equipment frame 1, an adjustment frame 3 is arranged above the equipment frame 1, two rotating frames 4 are symmetrically structured and rotatably connected on the adjustment frame 3, a laser displacement sensor 5 is fixedly installed on the inner wall of the lower side of the rotating frame 4, a marking mechanism 6 is rotatably connected to the inner wall of one end of the rotating frame 4, a retracting and releasing mechanism 7 is rotatably connected to the equipment frame 1, and track frames 8 are arranged on both sides of the equipment frame 1.

[0023] like Figure 2 As shown, the adjustment mechanism 2 includes a motor A201, which is fixedly connected to the inner wall of the equipment frame 1, and a bidirectional screw rod 202 is fixedly connected to the output end of the motor A201, and an adjustment block 203 is threadedly connected to the outer wall of both ends of the bidirectional screw rod 202, and an adjustment rod 204 is rotatably connected to the adjustment block 203, and the other end of the adjustment rod 204 is rotatably connected to the inner wall of the adjustment frame 3. The motor A201 drives the connected bidirectional screw rod 202 to rotate, so that the bidirectional screw rod 202 drives the two adjustment blocks 203 to move, thereby driving the adjustment frame 3 connected to the adjustment rod 204 to move upward through the adjustment block 203.

[0024] like Figure 3 As shown, the inner wall of the adjustment frame 3 is symmetrically structured and fixedly connected with two limit bars 301, and a sliding rod 302 is slidably provided on the limit bar 301, and one end of the sliding rod 302 is fixedly connected with a transmission rack 303, and the other end of the sliding rod 302 is rotatably connected with a connecting rod 304, and the other end of the connecting rod 304 is rotatably connected with the adjustment rod 204. The adjustment rod 204 drives the sliding rod 302 to move through the connecting rod 304, so that the sliding rod 302 drives the connected transmission rack 303 to move, thereby driving the rotating shaft 401 connected to the transmission wheel 402 to rotate, so that the rotating frame 4 connected to the rotating shaft 401 rotates to the top of the track.

[0025] like Figure 4 As shown, a rotating shaft 401 is fixedly connected to one end of the rotating frame 4, and the rotating shaft 401 is rotatably connected to the adjusting frame 3. A transmission wheel 402 is fixedly connected to one end of the rotating shaft 401 located in the adjusting frame 3, and the transmission wheel 402 is meshed with the transmission rack 303 for transmission. A liquid storage cavity 403 is provided on the inner wall of the rotating frame 4, and a rubber plug 404 is movably inserted at the opening at the top of the rotating frame 4.

[0026] like Figure 5 As shown, the marking mechanism 6 includes a marking frame 601, which is rotatably connected to the inner wall of the rotating frame 4, one end of the marking frame 601 is fixedly connected to a motor B602, the motor B602 is fixedly connected to the rotating frame 4, one end of the marking frame 601 is a hollow structure, one end of the marking frame 601 is fixedly connected to a sponge pad 603, and the marking frame 601 is provided with a plurality of liquid outlet holes at the position of the sponge pad 603.

[0027] A liquid squeezing tube 604 is fixedly connected to the marking frame 601, and the output end of the liquid squeezing tube 604 is connected to the hollow inner wall of the marking frame 601. A liquid guiding tube 605 is fixedly connected to the input end of the liquid squeezing tube 604, and the other end of the liquid guiding tube 605 passes through the marking frame 601 and is connected to the liquid storage chamber 403 in the rotating frame 4. A contact rod 606 is slidably provided at one end of the liquid squeezing tube 604, and the outer end of the contact rod 606 is movably contacted with the inner wall of the rotating frame 4. An extrusion plug 607 is fixedly connected to the inner end of the contact rod 606, and the extrusion plug 607 is slidably provided with the inner wall of the liquid squeezing tube 604. A tension spring 608 is fixedly connected to the extrusion plug 607, and the other end of the tension spring 608 is fixedly connected to the inner wall of the liquid squeezing tube 604. A one-way valve is installed in both the input and output ends of the liquid squeezing tube 604. The motor B602 is used to drive the marking frame 601 to rotate downward. At this time, the contact rod 606 will contact the inner wall of the rotating frame 4, so that the contact rod 606 drives the extrusion plug 607 to move, thereby squeezing the pigment in the extrusion tube 604 through the inner wall of the marking frame 601 into the sponge pad 603, and then smearing it on the side wall of the track through the sponge pad 603 for marking. When the marking frame 601 rotates to reset, the extrusion plug 607 will be reset under the action of the tension spring 608. At this time, the pigment in the liquid storage chamber 403 is sucked into the extrusion tube 604 through the liquid guide tube 605.

[0028] like Figure 6 As shown, the retracting and extending mechanism 7 includes a bidirectional worm 701, which is rotatably connected to the equipment frame 1, and both ends of the bidirectional worm 701 are meshingly provided with worm wheels 702, which are rotatably connected to the equipment frame 1, and the other end of the worm wheel 702 is fixedly connected to a driving wheel 703, and the middle part of the bidirectional worm 701 is fixedly connected to a gear A704.

[0029] like Figure 7 As shown, one side of the track frame 8 is rotatably connected with two electric track wheels 801, one side of the track frame 8 is symmetrically structured and rotatably connected with a rotating rod 802, the other end of the rotating rod 802 is rotatably connected with the equipment frame 1, and one end of the rotating rod 802 connected to the equipment frame 1 is fixedly connected with a driven wheel 803, and the driven wheel 803 is meshed with the driving wheel 703 for transmission. The electric track wheel 801 is adapted to the side wall of the track.

[0030] By setting up the track frame 8 and the retracting and releasing mechanism 7, the electric track wheels 801 on the two track frames 8 can be inserted into the side wall of the track, thereby driving the laser displacement sensor 5 to move on the track to cover more track areas. Compared with fixed laser displacement monitors, it can only monitor a fixed position or range and cannot dynamically adjust the position. By moving on the track, track status data of more areas can be obtained in real time, thereby achieving comprehensive track monitoring. This method has greater advantages, especially for railway systems with long distances or complex sections. At the same time, driven by the retracting and releasing mechanism 7, the track frame 8 is moved to the lower side of the equipment frame 1, which is convenient for the device to move on the ground when not in use.

[0031] like Figure 2 As shown, a push handle 101 is rotatably connected to one side of the equipment frame 1, and a gear B102 is fixedly connected to one side of the push handle 101, and the gear B102 is meshed with the gear A704 for transmission. A radar sensor is installed on the equipment frame 1 to monitor the train that is about to arrive and control the retraction of the rotating frame 4 so that the train can pass smoothly. The bidirectional worm 701 drives the connected gear A704 to rotate, so that the gear A704 drives the push handle 101 connected to the gear B102 to be leveled.

[0032] Working principle: When the track needs to be laser-displaced, the push handle 101 is used to push the device to the track, and then the device is placed between the two tracks. Then, the bidirectional worm 701 is rotated to drive the connected gear A704 to rotate, so that the gear A704 drives the push handle 101 connected to the gear B102 to be leveled. At the same time, the bidirectional worm 701 drives the two worm wheels 702 to rotate, so that the worm wheels 702 drive the driving wheel 703 to rotate. At this time, the driving wheel 703 drives the rotating rod 802 connected to the two driven wheels 803 to rotate, so that the electric track wheels 801 at both ends of the track frame 8 can be inserted into the inner wall of the track, and then the electric track wheels 801 can drive the device to move on the track; Then, the motor A201 is used to drive the connected bidirectional screw rod 202 to rotate, so that the bidirectional screw rod 202 drives the two adjustment blocks 203 to move, thereby driving the adjustment frame 3 connected to the adjustment rod 204 to move upward through the adjustment block 203, and at the same time, the adjustment rod 204 drives the sliding rod 302 to move through the connecting rod 304, so that the sliding rod 302 drives the connected transmission rack 303 to move, thereby driving the rotating shaft 401 connected to the transmission wheel 402 to rotate, so that the rotating frame 4 connected to the rotating shaft 401 rotates to the top of the track, and then the laser displacement sensor 5 is used to monitor the track; When a problem with the track is detected, the motor B602 is used to drive the marking frame 601 to rotate downward. At this time, the contact rod 606 will contact the inner wall of the rotating frame 4, so that the contact rod 606 drives the extrusion plug 607 to move, thereby squeezing the pigment in the extrusion tube 604 through the inner wall of the marking frame 601 into the sponge pad 603, and then smearing it on the side wall of the track through the sponge pad 603 for marking. When the marking frame 601 rotates to reset, the extrusion plug 607 will be reset under the action of the tension spring 608. At this time, the pigment in the liquid storage chamber 403 is sucked into the extrusion tube 604 through the liquid guide tube 605 for standby use.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A laser displacement monitor, comprising a device frame (1), characterized in that: An adjustment mechanism (2) is fixedly connected to the equipment frame (1), an adjustment frame (3) is arranged above the equipment frame (1), two rotating frames (4) are rotatably connected to the adjustment frame (3) in a symmetrical structure, a laser displacement sensor (5) is fixedly mounted on the inner wall of the lower side of the rotating frame (4), a marking mechanism (6) is rotatably connected to the inner wall of one end of the rotating frame (4), a retracting mechanism (7) is rotatably connected to the equipment frame (1), and track frames (8) are arranged on both sides of the equipment frame (1).

2. A laser displacement monitor according to claim 1, characterized in that: The adjustment mechanism (2) comprises a motor A (201), the motor A (201) being fixedly connected to the inner wall of the equipment frame (1), a bidirectional screw rod (202) being fixedly connected to the output end of the motor A (201), an adjustment block (203) being threadedly connected to the outer walls of both ends of the bidirectional screw rod (202), an adjustment rod (204) being rotatably connected to the adjustment block (203), and the other end of the adjustment rod (204) being rotatably connected to the inner wall of the adjustment frame (3).

3. A laser displacement monitor according to claim 2, characterized in that: The inner wall of the adjustment frame (3) is symmetrically structured and fixedly connected with two limit bars (301); a sliding rod (302) is slidably provided on the limit bar (301); one end of the sliding rod (302) is fixedly connected with a transmission rack (303); the other end of the sliding rod (302) is rotatably connected with a connecting rod (304); the other end of the connecting rod (304) is rotatably connected with the adjustment rod (204).

4. A laser displacement monitor according to claim 3, characterized in that: A rotating shaft (401) is fixedly connected to one end of the rotating frame (4), and the rotating shaft (401) is rotatably connected to the adjustment frame (3). A transmission wheel (402) is fixedly connected to one end of the rotating shaft (401) located inside the adjustment frame (3), and the transmission wheel (402) is meshed with a transmission rack (303) for transmission. A liquid storage cavity (403) is provided on the inner wall of the rotating frame (4), and a rubber plug (404) is movably inserted at the top opening of the rotating frame (4).

5. A laser displacement monitor according to claim 4, characterized in that: The marking mechanism (6) comprises a marking frame (601), the marking frame (601) being rotatably connected to the inner wall of the rotating frame (4), one end of the marking frame (601) being fixedly connected to a motor B (602), the motor B (602) being fixedly connected to the rotating frame (4), one end of the marking frame (601) being a hollow structure, one end of the marking frame (601) being fixedly connected to a sponge pad (603), and a plurality of liquid outlet holes being provided on the marking frame (601) at the position of the sponge pad (603).

6. A laser displacement monitor according to claim 5, characterized in that: A liquid squeezing tube (604) is fixedly connected to the marking frame (601), the output end of the liquid squeezing tube (604) is in communication with the hollow inner wall of the marking frame (601), the input end of the liquid squeezing tube (604) is fixedly connected to a liquid guiding tube (605), the other end of the liquid guiding tube (605) passes through the marking frame (601) and is in communication with the liquid storage chamber (403) in the rotating frame (4), one end of the liquid squeezing tube (604) is penetrated by a contact rod (606) which is slidably arranged, the outer end of the contact rod (606) is movably arranged in contact with the inner wall of the rotating frame (4), the inner end of the contact rod (606) is fixedly connected to an extrusion plug (607), the extrusion plug (607) is slidably arranged with the inner wall of the liquid squeezing tube (604), the extrusion plug (607) is fixedly connected to the extrusion plug (607), the other end of the tension spring (608) is fixedly connected to the inner wall of the liquid squeezing tube (604).

7. The laser displacement monitor according to claim 1, characterized in that: The retracting and releasing mechanism (7) comprises a bidirectional worm (701), the bidirectional worm (701) being rotatably connected to the equipment frame (1), worm wheels (702) being meshingly provided at both ends of the bidirectional worm (701), the worm wheel (702) being rotatably connected to the equipment frame (1), a driving wheel (703) being fixedly provided at the other end of the worm wheel (702), and a gear A (704) being fixedly provided at the middle of the bidirectional worm (701).

8. A laser displacement monitor according to claim 7, characterized in that: One side of the track frame (8) is rotatably connected to two electric track wheels (801), one side of the track frame (8) is symmetrically structured and rotatably connected to a rotating rod (802), the other end of the rotating rod (802) is rotatably connected to the equipment frame (1), one end of the rotating rod (802) connected to the equipment frame (1) is fixedly connected to a driven wheel (803), and the driven wheel (803) is meshed with the driving wheel (703) for transmission.

9. The laser displacement monitor according to claim 7, characterized in that: A push handle (101) is rotatably connected to one side of the equipment frame (1), and a gear B (102) is fixedly connected to one side of the push handle (101), and the gear B (102) is meshed with the gear A (704) for transmission.

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