Crane anti-collision device based on laser sensor and operation process of crane anti-collision device

Abstract

The invention relates to the technical field of crane collision prevention, and discloses a crane collision prevention device based on a laser sensor and an operation technology thereof.The device comprises a base and a supporting frame arranged on the base, the supporting frame comprises two supporting rods, a bracket, a locking plate and a reinforcing rod, and the two supporting rods are perpendicularly arranged on the base; a bracket is connected between the tops of the two supporting rods, one side of the bracket is rotationally connected with the supporting rods on the two sides through bolts, the bottom of the other side of the bracket is connected with two arc-shaped locking plates movably connected with the reinforcing rods, and the two reinforcing rods are obliquely arranged between the sides, connected with the bracket, of the supporting rods and the base. The bracket can mount and fix the laser sensor, can rotate to adjust the angle and can adjust the height of the bracket, so that the angle requirement during measurement is met, the displacement state of the crane in the using process is conveniently monitored in real time, and collision accidents caused by movement of the crane are avoided. The bracket is provided with the lock hole in the lock plate, angle adjustment is convenient, fixing is achieved through the locking bolt, and the mode is reliable.

Description

Technical Field

[0001] The invention relates to the field of crane anti-collision, and in particular to a crane anti-collision device based on a laser sensor and an operation process thereof. Background Art

[0002] When the crane is performing construction work, in order to ensure construction safety, it is necessary to install an anti-collision alarm device on the crane body. The device forms a 3D point cloud map based on the laser sensor, and warns when the crane arm reaches the warning distance with other objects. At present, laser sensors are mostly fixed by bolts during installation, which is prone to angle deviation. The bolts need to be repeatedly disassembled for testing and adjustment, which is time-consuming and labor-intensive. When detecting objects of different sizes, the installation height of the laser displacement sensor needs to be repeatedly disassembled and adjusted, which greatly reduces the detection efficiency. In addition, due to the particularity of the working environment of the crane, the vibration of the machine during the construction of the crane will affect the performance of the laser sensor. During the long-term use of the laser sensor, dust particles in the air will stick to the lens, which will refract the light of the laser sensor, affect the accuracy of the sensor, and cause inaccurate data.

[0003] The patent application with publication number CN 210193237U discloses an anti-collision safety device for a bridge crane pulley, comprising an I-beam, a pulley, a pulley, a crossbeam and an anti-collision device, wherein the pulley is arranged on the pulley, the pulley is rotatably connected to the I-beam, the crossbeam is arranged under the pulley, the anti-collision device is arranged in the center of the pulley, the anti-collision device comprises a load-bearing frame, an electric telescopic rod and a distance sensor, the load-bearing frame is arranged in the center of the pulley, the electric telescopic rod is arranged on the load-bearing frame, and the distance sensor is arranged on the pulley.

[0004] The prior art is fixed by bolts during installation, which is prone to angle deviation. The bolts need to be repeatedly disassembled for testing and adjustment, which is time-consuming and laborious. In addition, when detecting objects of different sizes, the laser displacement sensor installation height needs to be repeatedly disassembled and adjusted, which greatly reduces the detection efficiency.

[0005] Therefore, a new technical solution is needed to solve the above technical problems. Summary of the invention

[0006] The purpose of the present invention is to provide a crane anti-collision device based on a laser sensor and its operating process. The device provides a laser sensor bracket whose angle and height can be adjusted at will, and the laser sensor automatically removes dust and has an anti-shake effect to improve the performance of the laser sensor, so as to facilitate real-time monitoring of the displacement state of the crane during use and avoid collision accidents caused by the movement of the crane.

[0007] The technical solution adopted by the present invention is: A laser sensor-based crane anti-collision device comprises a base and a support frame arranged on the base, the support frame comprises a support rod, a bracket, a locking plate, and a reinforcing rod. Two support rods are provided and vertically arranged on the base. A bracket is connected between the tops of the two support rods. One side of the bracket is rotatably connected to the support rods on both sides by bolts, and the bottom of the other side is connected to two arc-shaped locking plates movably connected to the reinforcing rods. Two reinforcing rods are obliquely provided between one side of the support rod connecting the bracket and the base.

[0008] By adopting the above structure, the angle and height of the device can be adjusted at will, the operation is convenient, and the practicability is strong.

[0009] Preferably, a plurality of locking holes are provided on the arc-shaped locking plate, and the arc-shaped locking plate is fixed to the reinforcing rod through locking bolts and locking holes. The bracket rotates around the side connected to the support rod, and is fixed to the reinforcing rod through different locking holes on the arc-shaped locking plate to control the angle between the bracket and the support rod.

[0010] By adopting the above structure, it is convenient for the bracket to install and fix the laser sensor. The bracket can be rotated to adjust the angle and the height of the bracket can be adjusted to meet the angle requirements during measurement.

[0011] Preferably, a limit block is provided on the outer side of the end of the arc-shaped locking plate.

[0012] By adopting the above structure, it is avoided that the bracket rotates excessively and the arc-shaped locking plate is separated from the reinforcing rod during use.

[0013] Preferably, the base is a rectangular frame, at least two fixing rods are provided at the bottom of the base, and a shock-absorbing component is provided at the connection between the base and the fixing rods. The shock-absorbing component includes a shock-absorbing pad, an upper connecting plate, a shock-absorbing ring, and a lower connecting plate. The shock-absorbing ring is flat and made of stainless steel. It is located between the upper connecting plate and the lower connecting plate. A shock-absorbing pad is provided on the top of the upper connecting plate, and the lower connecting plate is connected to the fixing rod.

[0014] By adopting the above structure, the deformation of the shock-absorbing pad and the shock-absorbing ring can eliminate a part of the vibration generated by the crane during operation, improve the stability of the detection equipment, improve the detection accuracy, and protect the equipment.

[0015] Preferably, one end of the fixed rod is slidably connected to a telescopic rod, a chuck is provided at the end of the telescopic rod, the telescopic rods are connected by a connecting rod, a connecting block is provided on the connecting rod, and the connecting block is connected to the side of the base through a locking screw.

[0016] Preferably, the locking screw passes through the connecting block and cooperates with the connecting block thread. The end of the locking screw is arranged in a sleeve on the base, and a turning handle is provided on the top. The locking screw is sleeved with a locking nut on the inner side of the connecting block.

[0017] By adopting the above structure, the locking screw can be adjusted uniformly with the telescopic rod, which saves adjustment time, achieves uniformity of length, ensures the reliability of fixation and convenience of operation, and a locking nut is sleeved on the outside of the locking screw to fix the locking screw to prevent self-rotation, thereby ensuring the reliability and safety of fixation.

[0018] Preferably, a sensor and a dust removal shell are provided on the bracket. The dust removal shell includes a connecting shaft, a connecting rod, a motor and a gear. The motor is fixed to the side of the sensor. The motor rotates the gear and drives the connecting shaft to rotate, so that the connecting rod enables the dust removal shell to remove dust from the sensor lens.

[0019] By adopting the above structure, the dust removal shell can drive the dust removal cloth to wipe the lens of the sensor during use, so that the lens will not be refracted due to dust blocking the light and reducing the accuracy.

[0020] An operation process of a crane anti-collision device based on a laser sensor comprises the following steps: Step 1: Rotate the bracket, adjust the installation angle and height of the sensor on the bracket to the required angle, and fix the lock plate and the reinforcement rod with the locking bolts; Step 2: By turning the locking screw, the connecting rod is controlled to move, and the telescopic rod is driven to adjust the length, thereby adjusting the lateral installation position of the sensor; Step 3: The controller in the sensor receives the transmitted data signal in real time to form a 3D point cloud map to determine the angular position of the crane when it rotates; Step 4: When the crane is within the moving range, the sensor does not respond with an alarm. When the crane moves beyond the set range, the sensor receives a signal and issues an alarm. Step 5: The operator issues a stop command through the remote control. After the crane stops, the operator determines whether the displacement action can be performed based on the real-time status.

[0021] By adopting the above process, the displacement state of the crane during use can be monitored in real time to avoid collision accidents caused by the movement of the crane.

[0022] Compared with the prior art, the present invention has the following beneficial effects: 1. The bracket of the device of the present invention can install and fix the laser sensor. The bracket can be rotated to adjust the angle and the height of the bracket can be adjusted to meet the angle requirements during measurement, which is convenient for real-time monitoring of the displacement state of the crane during use and avoiding collision accidents caused by the movement of the crane.

[0023] 2. The present invention can be adjusted uniformly with the telescopic rod through the locking screw, which saves adjustment time, achieves uniformity of length, ensures reliability of fixation and convenience of operation. A locking nut is sleeved on the outside of the locking screw, which can fix the locking screw to prevent self-rotation, thereby ensuring reliability and safety of fixation.

[0024] 3. The present invention can eliminate a portion of the vibrations generated by the crane during operation through the deformation of the shock-absorbing pad and the shock-absorbing ring, thereby improving the stability of the detection equipment, improving the detection accuracy, and protecting the equipment.

[0025] 4. The bracket of the present invention has a simple adjustment method. A locking hole is provided on the locking plate, and locking is performed according to different angles. The angle adjustment is convenient. The bracket is fixed by a locking bolt, and the method is simple and reliable.

[0026] 5. The dust removal shell provided on the outer side of the laser sensor can drive the dust removal cloth to wipe the lens of the sensor, so that the lens will not be refracted due to dust blocking the light and reducing the accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the support frame of the present invention; Figure 3 It is a schematic diagram of the connection between the fixing rod and the locking screw of the present invention; Figure 4 It is a schematic diagram of the structure of the shock absorbing member of the present invention; Figure 5 It is a schematic diagram of the structure of the sensor and the dust removal shell of the present invention.

[0028] Wherein: 1. base; 101. sleeve; 2. shock absorbing part; 201. shock absorbing pad; 202. upper connecting plate; 203. shock absorbing ring; 204. lower connecting plate; 3. fixing rod; 301. chuck; 302. connecting rod; 303. telescopic rod; 304. connecting block; 4. support frame; 402. support rod; 403. limit block; 404. bracket; 405. locking plate; 406. locking hole; 407. locking bolt; 408. reinforcing rod; 5. locking screw; 501. turning handle; 502. locking nut; 6. sensor; 7. dust removal shell; 701. connecting shaft; 702. connecting rod; 703. motor; 704. gear. DETAILED DESCRIPTION

[0029] like Figure 1-5As shown, a crane anti-collision device based on a laser sensor includes a base 1 and a support frame 4 arranged on the base 1, the support frame 4 includes a support rod 402, a bracket 404, a lock plate 405, and a reinforcing rod 408. Two support rods 402 are provided, which are vertically arranged on the base 1. A bracket 404 is connected between the tops of the two support rods 402. One side of the bracket 404 is rotatably connected to the support rods 402 on both sides by bolts, and the bottom of the other side is connected to two arc-shaped lock plates 405 movably connected to the reinforcing rod 408. Two reinforcing rods 408 are obliquely arranged between one side of the support rod 402 connected to the bracket 404 and the base 1. The device can adjust the angle and height at will, and is easy to operate and highly practical. It is also convenient for the bracket 404 to install and fix the laser sensor. The bracket 404 can be rotated for angle adjustment and the height of the bracket can be adjusted to meet the angle requirements during measurement, which is convenient for real-time monitoring of the displacement state of the crane during use to avoid collision accidents caused by the movement of the crane.

[0030] The arc-shaped locking plate 405 is provided with a plurality of locking holes 406, and the arc-shaped locking plate 405 is fixed to the reinforcing rod 408 through locking bolts 407 and locking holes 406. The bracket 404 rotates around the side connected to the support rod 402, and is fixed to the reinforcing rod 408 through different locking holes 406 on the arc-shaped locking plate 405, so as to control the angle between the bracket 404 and the support rod 402. A limit block 403 is provided on the outer side of the end of the arc-shaped locking plate 405. The bracket 404 is easy to adjust, and the locking holes 406 are provided on the locking plate 408, and the bracket 404 is locked according to different angles, and the angle adjustment is convenient. The bracket 404 is fixed by the locking bolts 407, and the method is simple and reliable.

[0031] The base 1 is a rectangular frame, at least two fixed rods 3 are provided at the bottom of the base 1, and a shock absorbing member 2 is provided at the connection between the base 1 and the fixed rod 3. The shock absorbing member 2 includes a shock absorbing pad 201, an upper connecting plate 202, a shock absorbing ring 203, and a lower connecting plate 204. The shock absorbing ring 203 is flat and made of stainless steel. It is located between the upper connecting plate 202 and the lower connecting plate 204. Each shock absorbing member 2 includes at least 8 shock absorbing rings 203, and the ring width is 5-8mm. Each fixed rod 3 is connected to the base 1 through two shock absorbing members 2. A shock absorbing pad 201 is provided at the top of the upper connecting plate 202, and the lower connecting plate 204 is connected to the fixed rod 3. The device can eliminate part of the vibration generated by the crane during operation through the deformation of the shock absorbing pad 201 and the shock absorbing ring 203, improve the stability of the detection equipment, improve the detection accuracy, and protect the equipment.

[0032] One end of the fixed rod 3 is slidably connected to a telescopic rod 303, and a chuck 301 is provided at the end of the telescopic rod 303. The telescopic rods 303 are connected by a connecting rod 302, and a connecting block 304 is provided on the connecting rod 302. The connecting block 304 is connected to the side of the base 1 through a locking screw 5. By rotating the locking screw 5, the length of all the telescopic rods 303 can be adjusted through the connecting rod 302. The locking screw 5 passes through the connecting block 304 and is threadedly matched with the connecting block 304. The end of the locking screw 5 is arranged in the sleeve 101 on the base 1, and a turning handle 501 is provided at the top. The locking screw 5 is sleeved with a locking nut 502 on the inner side of the connecting block 304. When clamped and fixed, the locking nut 502 is rotated so that the locking nut 502 is pressed on one side of the connecting block 304 to prevent the screw from rotating. The locking screw 5 can be adjusted uniformly with the telescopic rod 303, which saves adjustment time, achieves uniformity of length, and ensures the reliability of fixation and convenience of operation. A locking nut 502 is sleeved on the outside of the locking screw 5, which can fix the locking screw 5 to prevent self-rotation and ensure the reliability and safety of fixation.

[0033] The bracket 404 is provided with a sensor 6 and a dust removal shell 7. The dust removal shell 7 includes a connecting shaft 701, a connecting rod 702, a motor 703 and a gear 704. The motor 703 is fixed to the side of the sensor 6. The motor 703 rotates the gear 704, driving the connecting shaft 701 to rotate, so that the connecting rod 702 enables the dust removal shell 7 to remove dust from the sensor lens. When in use, the dust removal shell 7 can drive the dust removal cloth to wipe the lens of the sensor 6, so that the lens will not be refracted due to dust blocking the light and reducing the accuracy.

[0034] An operation process of a crane anti-collision device based on a laser sensor comprises the following steps: Step 1: Rotate the bracket 404, adjust the installation angle and height of the sensor on the bracket 404 to the required angle, and fix the locking plate 405 and the reinforcing rod 408 with the locking bolt 407; Step 2: By rotating the locking screw 5, the connecting rod 302 is controlled to shift, driving the telescopic rod 303 to adjust the length, and adjusting the lateral installation position of the sensor 6; Step 3: The controller in the sensor 6 receives the transmitted data signal in real time to form a 3D point cloud map to determine the angular position of the crane during rotation; Step 4: When the crane is within the moving range, the sensor 6 does not respond with a warning. When the crane moves beyond its set range, the sensor 6 receives a signal and issues a warning message. Step 5: The operator issues a stop command through the remote control. After the crane stops, the operator determines whether the displacement action can be performed based on the real-time status. The device monitors the displacement status of the crane in real time during the operation of the worker to avoid collision accidents caused by the movement of the crane.

[0035] The embodiments described above are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by those skilled in the art should be included in the protection scope determined by the claims of the present invention.

Claims

1. A crane anti-collision device based on a laser sensor, comprising a base and a support frame arranged on the base, characterized in that: The support frame includes a support rod, a bracket, a locking plate, and a reinforcing rod. Two support rods are provided and are vertically arranged on the base. A bracket is connected between the tops of the two support rods. One side of the bracket is rotatably connected to the support rods on both sides by bolts, and the bottom of the other side is connected to two arc-shaped locking plates movably connected to the reinforcing rods. Two reinforcing rods are obliquely provided between one side of the support rod connecting the bracket and the base.

2. A crane anti-collision device based on a laser sensor according to claim 1, characterized in that: The arc-shaped locking plate is provided with a plurality of locking holes, and the arc-shaped locking plate is fixed to the reinforcing rod through locking bolts and the locking holes. The bracket rotates around the side connected to the support rod, and is fixed to the reinforcing rod through different locking holes on the arc-shaped locking plate to control the angle between the bracket and the support rod.

3. The crane anti-collision device based on a laser sensor according to claim 1 is characterized in that: A limiting block is arranged on the outer side of the end of the arc-shaped locking plate.

4. The crane anti-collision device based on a laser sensor according to claim 1 is characterized in that: The base is a rectangular frame, at least two fixing rods are provided at the bottom of the base, a shock-absorbing component is provided at the connection between the base and the fixing rods, the shock-absorbing component includes a shock-absorbing pad, an upper connecting plate, a shock-absorbing ring, and a lower connecting plate. The shock-absorbing ring is flat and made of stainless steel. It is located between the upper connecting plate and the lower connecting plate. A shock-absorbing pad is provided on the top of the upper connecting plate, and the lower connecting plate is connected to the fixing rod.

5. The crane anti-collision device based on a laser sensor according to claim 4 is characterized in that: One end of the fixed rod is slidably connected to a telescopic rod, the end of the telescopic rod is provided with a clamp, the telescopic rods are connected by a connecting rod, a connecting block is provided on the connecting rod, and the connecting block is connected to the side of the base through a locking screw.

6. The anti-collision device for crane based on laser sensor according to claim 5, characterized in that: The locking screw passes through the connecting block and cooperates with the connecting block thread. The end of the locking screw is arranged in a sleeve on the base, and a turning handle is arranged on the top. A locking nut is sleeved on the inner side of the connecting block.

7. The anti-collision device for crane based on laser sensor according to claim 1, characterized in that: The bracket is provided with a sensor and a dust removal shell, the dust removal shell includes a connecting shaft, a connecting rod, a motor and a gear, the motor is fixed to the side of the sensor, the motor rotates the gear, drives the connecting shaft to rotate, and the connecting rod enables the dust removal shell to remove dust from the sensor lens.

8. The operating process of the crane anti-collision device based on a laser sensor according to claim 1 is characterized in that: The following steps are involved: Step 1: Rotate the bracket, adjust the installation angle and height of the sensor on the bracket to the required angle, and fix the lock plate and the reinforcement rod with the locking bolts; Step 2: By turning the locking screw, the connecting rod is controlled to move, and the telescopic rod is driven to adjust the length, thereby adjusting the lateral installation position of the sensor; Step 3: The controller in the sensor receives the transmitted data signal in real time to form a 3D point cloud map to determine the angular position of the crane when it rotates; Step 4: When the crane is within the moving range, the sensor does not respond with an alarm. When the crane moves beyond the set range, the sensor receives a signal and issues an alarm. Step 5: The operator issues a stop command through the remote control. After the crane stops, the operator determines whether the displacement action can be performed based on the real-time status.

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