Visual inspection device for crane track

Abstract

The utility model relates to the technical field of track detection equipment, in particular to a visual detection device for a crane track. The detection device comprises a light beam emitting device and a light beam receiving device, the light beam emitting device comprises a first chassis, a first shell is installed on the first chassis, a first main control circuit board and a laser pen are arranged in the first shell, and a first track clamping assembly is arranged on the first chassis; the light beam receiving device comprises a second chassis, a second shell is installed on the second chassis, a second main control circuit board, a camera and a walking assembly are arranged in the second shell, a laser target is arranged at one end of the second shell, the camera faces the laser target and is coaxial with the laser target, and a second track clamping assembly is arranged on the second chassis. The device is divided into the reference light source and the detection vehicle, the distance between the side wheels on the two sides is adjusted through the track width adjusting mechanism on the device, the wheels on the two sides of the device are clamped and matched with tracks with different widths, and therefore the application range of the device is enlarged.

Description

Technical Field

[0001] The utility model relates to the technical field of track detection equipment, in particular to a crane track visual detection device. Background Art

[0002] Hoisting machinery is widely used in fields such as machinery, metallurgy, logistics, nuclear power, and national defense, and its operating conditions are complex and changeable. The development trend of cranes towards larger sizes, higher speeds, and higher efficiency has put forward new requirements for equipment installation, inspection, and maintenance. The crane trolley tracks are the foundation of crane operation. In particular, track parameters such as height deviation, horizontal deviation, span difference, and height difference are crucial to the safe operation of the crane. Cranes that are often under heavy load conditions are prone to lateral and longitudinal deformation of the tracks due to factors such as ground subsidence. This can cause "track gnawing" during operation, accelerate friction between metal parts, shorten the service life of the crane and the tracks, and in severe cases, easily cause the crane to become unstable and derail, leading to safety accidents. Therefore, whether during the crane manufacturing stage or the use stage, testing various track parameters is necessary to ensure the safe operation of the lifting machinery and the safe production of the enterprise.

[0003] Currently, track inspections are typically performed manually using measuring equipment such as steel tape measures, tower rulers, and laser theodolites. These instruments are used to mark and measure the entire length of the track, segment by segment, to obtain track parameters. These tools are numerous and subject to significant environmental fluctuations, making measurement accuracy difficult to guarantee. Furthermore, inspecting a single crane with a span of 30 meters and a length of 50 meters requires 3-4 people working for 4 hours, resulting in low inspection efficiency, a heavy workload, and high labor intensity. While total stations offer higher accuracy, they require manual placement of measurement points, resulting in lengthy measurement times and potential safety hazards when operating on high-altitude tracks. To address these challenges in crane track measurement, there is an urgent need to develop a crane track measurement system that can automate track measurement and data analysis.

[0004] Chinese patent application number 201320023552.5 discloses a crane track measurement and detection system, including a PC control terminal; a laser transmitter fixed on the track, a trolley for traveling on the track, and a laser receiving screen fixed on the trolley, a video device, an on-board controller, a distance measuring device and a power supply; the laser receiving screen is a translucent screen, facing the laser transmitter and perpendicular to the light emitted by the laser transmitter, and the video device is located behind the back of the laser receiving screen and facing the laser receiving screen. This detection system can detect the height deviation, horizontal deviation, span and height difference of the left and right tracks and other parameter changes at different positions of the track by recording the coordinates of the corresponding light spots at different distances of the track. The detection and measurement of the crane overhead track can be easily realized through wireless remote control. However, when clamping the track, the track clamping structure at the front and rear ends of the trolley needs to be adjusted separately. When adjusting, it is necessary to loosen the tightening bolt first, rotate the handle, and adjust the distance between the two side guide wheels to adapt to the width of different tracks. After adjustment, tighten the tightening bolt to fix the position of the guide wheel. This adjustment method is relatively complicated and cannot guarantee the consistency of the guide wheel positions at the front and rear ends of the trolley. The trolley is prone to deviation during travel. Utility Model Content

[0005] The purpose of the utility model is to solve the technical problems that the existing crane track detection system is inconvenient to adjust during application, cannot ensure the consistency of guide wheel adjustment, and the trolley is prone to deviation during travel. The utility model provides a crane track visual detection device, which is divided into two parts: a reference light source and a detection vehicle. The distance between the side wheels on both sides is adjusted by the track width adjustment mechanism on the equipment, so that the wheels on both sides of the equipment are clamped to adapt to tracks of different widths, thereby expanding the application range of the equipment. The structure is simple and easy to maintain and service.

[0006] The technical solution adopted by the present invention to achieve the above-mentioned purpose is: a crane track visual inspection device, including a light beam emitting device and a light beam receiving device,

[0007] The light beam emitting device includes a first chassis, a first housing is mounted on the first chassis, a first main control circuit board and a laser pen are disposed in the first housing, the first main control circuit board is electrically connected to the laser pen, a through hole is disposed on the first housing for transmitting the laser, and a first rail clamping assembly is disposed on the first chassis;

[0008] The beam receiving device includes a second chassis, a second shell is installed on the second chassis, a second main control circuit board, a camera and a walking assembly are arranged in the second shell, the second main circuit board is electrically connected to the camera and the walking assembly respectively, a laser target is provided at one end of the second shell, the camera faces the laser target and is coaxially arranged with the laser target, a second track clamping assembly is provided on the second chassis, the second track clamping assembly includes a linear guide rail, a slider, a clamping claw, a guide block, a rack, a gear and a spring, the linear guide rail is installed at the lower end of the second chassis, two sliders are slidably installed on the linear guide rail, the two sliders are respectively connected to the clamping claws, one end of the clamping claw is provided with a guide wheel of the clamping rail, and the other end of the clamping claw is provided with a guide block, the guide block passes through the slide groove on the second chassis and extends into the second shell and is connected to the rack, the rack is meshed with the gear, and the gear is rotatably installed on the second chassis through a rotating shaft, and the end of the rack away from the guide block is connected to the second chassis by a spring.

[0009] Furthermore, the first rail clamping assembly and the second rail clamping assembly have the same structure.

[0010] Furthermore, the beam emitting device also includes a laser pen adjustment assembly, which includes a laser pen mounting bracket, a top block, a height fine-tuning screw, a height spring locating pin, a horizontal fine-tuning screw and a horizontal spring locating pin. The laser pen mounting bracket is sleeved on the laser pen, the top block is mounted on the first shell and is located at the lower end of the laser pen mounting bracket, a height spring locating pin is arranged between the laser pen mounting bracket and the top block, the height fine-tuning screw is threadedly connected to the upper end of the first shell, and the end of the height fine-tuning screw is connected to the upper end of the laser pen mounting bracket, the horizontal fine-tuning screw is threadedly connected to the side of the first shell, and the end of the horizontal fine-tuning screw is connected to the side of the laser pen mounting bracket, and a horizontal spring locating pin is arranged between the laser pen mounting bracket and the first shell.

[0011] Furthermore, the walking assembly includes a driving motor, a driving wheel and a driven wheel. The driving motor is installed on the second chassis, and the driving wheel is installed on the output shaft of the driving motor. The output shaft of the driving motor is also rotatably connected to the first bearing seat through a bearing. The first bearing seat is installed at one end of the second chassis, and two second bearing seats are installed at the other end of the second chassis. The two second bearing seats are respectively rotatably connected to the driven wheels through bearings. The driven wheel is located between the two second bearing seats, and the lower ends of the driving wheel and the driven wheel extend out of the second chassis.

[0012] Furthermore, the driven wheel is connected to an encoder via an encoder bracket.

[0013] Furthermore, circular magnets are embedded in the lower ends of the first chassis and the second chassis and the inner sides of the clamping claws.

[0014] Furthermore, a first battery is provided in the first shell, and the first battery is electrically connected to the first main control circuit board.

[0015] Furthermore, a second battery is provided in the second shell, and the second battery is electrically connected to the second main control circuit board.

[0016] Furthermore, the camera is installed in the second shell through a camera bracket.

[0017] Furthermore, the guide wheel is a bearing wheel.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] (1) The utility model is a crane track visual inspection device, which is divided into two parts: a reference light source and an inspection vehicle. The distance between the side wheels is adjusted by the track width adjustment mechanism on the device, so that the wheels on both sides of the device can be clamped to adapt to tracks of different widths, thereby expanding the application range of the device. The structure is simple and easy to maintain and service, which can reduce maintenance time and cost and improve work efficiency. The inspection vehicle can crawl automatically and integrates a large-scale high-precision laser ranging sensor, which has a wide application market.

[0020] (2) The utility model relates to a visual inspection device for crane rails. When adjusting the rail clamping assembly, the clamping claws are manually opened, and the two racks cooperate with the gear to enable the two clamping claws to move synchronously. Then the light beam emitting device is placed on the rail, and the rack is driven to move by the spring. The gear and the rack cooperate to enable the two racks to move relative to each other, which enables the equipment to clamp the rail. The method of adjusting and tightening the rail is simple and convenient, and the clamping device can be quickly adjusted according to different needs to perform measurements on various rails.

[0021] (3) In the crane track visual inspection device of the utility model, the laser pen is fixed on the shell with a bracket, a fine-tuning screw is installed on the upper side and the right side, and the lower side and the left side are positioned and supported by a spring positioning pin. The position of the laser pen can be adjusted by the fine-tuning screw, and the laser pen can be fine-tuned according to the inspection requirements, which has a wider range of applications.

[0022] (4) The utility model of the crane track visual inspection device has circular magnets installed on the lower part of the chassis and the inner side of the clamping claws, so that the device can be better adsorbed on the track, increasing the clamping force, and can ensure that the track is centered in real time during the movement of the device, solve the problems of equipment deviation and centering, and ensure the smooth operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural diagram of the crane track visual inspection device of the utility model.

[0024] Figure 2This is a diagram of the internal structure of the light beam emitting device of the crane track visual inspection device of the present utility model.

[0025] Figure 3 This is the structural front view of the light beam receiving device of the crane track visual inspection device of the utility model.

[0026] Figure 4 for Figure 3 AA section view.

[0027] Figure 5 This is a diagram of the internal structure of the light beam receiving device of the crane track visual inspection device of the present utility model.

[0028] In the figure: 1. first chassis, 2. first shell, 3. first main control circuit board, 4. laser pen, 5. laser pen mounting bracket, 6. top block, 7. height fine-tuning screw, 8. height spring locating pin, 9. horizontal fine-tuning screw, 10. horizontal spring locating pin, 11. first battery, 12. linear guide, 13. slider, 14. clamping claw, 15. guide wheel, 16. guide block, 17. rack, 18. gear, 19. spring, 20. second chassis, 21. second shell, 22. second main control circuit board, 23. camera, 24. camera bracket, 25. laser target, 26. second battery, 27. drive motor, 28. driving wheel, 29. first bearing seat, 30. second bearing seat, 31. driven wheel, 32. encoder, 33. circular magnet. DETAILED DESCRIPTION

[0029] The present invention will be described in detail below with reference to the accompanying drawings and embodiments, but the present invention is not limited to the specific embodiments.

[0030] like Figure 1-5 The crane track visual inspection device shown includes a light beam emitting device and a light beam receiving device.

[0031] The light beam emitting device includes a first chassis 1, on which a first shell 2 is mounted. A first main control circuit board 3, a laser pen 4 and a first battery 11 are arranged in the first shell 2. The first main control circuit board 3 is electrically connected to the laser pen 4 and the first battery 11. A through hole for laser transmission is provided on the first shell 2, and a first rail clamping assembly is provided on the first chassis 1.

[0032] The beam emitting device also includes a laser pen adjustment assembly, which includes a laser pen mounting bracket 5, a top block 6, a height fine-tuning screw 7, a height spring locating pin 8, a horizontal fine-tuning screw 9 and a horizontal spring locating pin 10. The laser pen mounting bracket 5 is sleeved on the laser pen 4, the top block 6 is mounted on the first shell 2 and is located at the lower end of the laser pen mounting bracket 5, a height spring locating pin 8 is arranged between the laser pen mounting bracket 5 and the top block 6, the height fine-tuning screw 7 is threadedly connected to the upper end of the first shell 2, and the end of the height fine-tuning screw 7 is connected to the upper end of the laser pen mounting bracket 5, the horizontal fine-tuning screw 9 is threadedly connected to the side of the first shell 2, and the end of the horizontal fine-tuning screw 9 is connected to the side of the laser pen mounting bracket 5, and a horizontal spring locating pin 10 is arranged between the laser pen mounting bracket 5 and the first shell 2.

[0033] The beam receiving device includes a second chassis 20, on which a second shell 21 is installed. A second main control circuit board 22, a camera 23, a walking assembly and a second battery 26 are arranged in the second shell 21. The second main control circuit board 22 is electrically connected to the camera 23, the walking assembly and the second battery 26 respectively. A laser target 25 is provided at one end of the second shell 21. The laser target 25 fits the front end of the second shell 21 to protect the internal structure. The camera 23 is installed in the second shell 21 through a camera bracket 24. The camera 23 faces the laser target 25 and is coaxial with the laser target 25. A second track clamping assembly is provided on the second chassis 20. The second track clamping assembly includes a linear guide rail 12, a slider 13, The clamping claw 14, guide block 16, rack 17, gear 18 and spring 19, the linear guide 12 is installed at the lower end of the second chassis 20 by bolts, and two sliders 13 are slidably installed on the linear guide 12. The two sliders 13 are respectively connected to the clamping claw 14. One end of the clamping claw 14 is provided with two guide wheels 15 for clamping the rail. The guide wheel 15 is a bearing wheel. The other end of the clamping claw 14 is provided with a guide block 16. The guide block 16 passes through the slide groove on the second chassis 20 and extends into the second housing 21 and is connected to the rack 17. The rack 17 is meshed with the gear 18. The gear 18 is rotatably installed on the second chassis 20 through a rotating shaft. The end of the rack 17 away from the guide block 16 is connected to the second chassis 20 by a spring 19.

[0034] Preferably, the first rail clamping assembly and the second rail clamping assembly have the same structure. Specifically, the linear guide rail 12 in the first rail clamping assembly is installed at the lower end of the first chassis 1 by bolts, and two sliders 13 are slidably installed on the linear guide rail 12. The two sliders 13 are respectively connected to the clamping claws 14. One end of the clamping claw 14 is provided with a guide wheel 15 for clamping the rail. The guide wheel 15 is a bearing wheel. The other end of the clamping claw 14 is provided with a guide block 16. The guide block 16 passes through the slide groove on the first chassis 1 and extends into the first shell 2 and is connected to the rack 17. The rack 17 is meshed with the gear 18. The gear 18 is rotatably installed on the first chassis 1 through a rotating shaft. The end of the rack 17 away from the guide block 16 is connected to the first chassis 1 through a spring 19.

[0035] The walking assembly includes a driving motor 27, a driving wheel 28 and a driven wheel 31. The driving motor 27 is installed on the second chassis 20. The driving wheel 28 is installed on the output shaft of the driving motor 27. The output shaft of the driving motor 27 is also rotatably connected to the first bearing seat 29 through a bearing. The first bearing seat 29 is installed at one end of the second chassis 20. Two second bearing seats 30 are installed at the other end of the second chassis 20. The two second bearing seats 30 are respectively rotatably connected to the driven wheel 31 through bearings. The driven wheel 31 is located between the two second bearing seats 30. The lower ends of the driving wheel 28 and the driven wheel 31 extend out of the second chassis 20. The driven wheel 31 is also connected to the encoder 32 through the encoder bracket.

[0036] Preferably, circular magnets 33 are embedded in the lower ends of the first chassis 1 and the second chassis 20 and the inner side of the clamping claw 14 .

[0037] When the present invention is used, the crane track visual inspection device is first installed on the track, the two clamping claws 14 are manually opened, the two sliders 13 slide along the linear guide rail 12, the clamping claws 14 drive the rack 17 to move through the guide block 16, the guide block 16 moves along the slide groove, and the two racks 17 cooperate with the gear 18 to make the two clamping claws 14 move synchronously, and then the laser pen 4 of the device is placed on the track with the beam emitting side facing the beam receiving device, the spring 19 pulls the rack 17 to move, the rack 17 cooperates with the gear 18, and the two racks 17 move relative to each other, thereby clamping the track, the laser pen 4 is fixed to the shell with the bracket, the upper side and the right side are installed with a fine-tuning screw, and the lower side and the left side are positioned and supported by a spring positioning pin, and the position of the laser pen 4 can be adjusted by the fine-tuning screw; then the beam receiving device is installed on the track so that the laser target 25 faces the beam emitting device. The installation method of the beam receiving device is the same as that of the beam emitting device, which will not be repeated here.

[0038] Four clamping bearings are provided on the inner side of the two clamping claws 14, and the clamping track does not affect the crawling of the equipment. Circular magnets 33 are installed on the lower part of the chassis and the inner side of the clamping claws 14, so that the equipment can be better adsorbed on the track, increasing the clamping force, and ensuring that the track is centered in real time during the movement of the equipment, solving problems such as equipment deviation and centering, and ensuring the smooth operation of the equipment.

[0039] A laser transmitter is installed at one end of the track, and the emitted laser beam is used as a reference to measure the straight line. The beam receiving device is driven by a motor to drive the rear wheel, and the front wheel is driven to run along the track. The side end of the front wheel is equipped with an encoder 33, which can measure the moving speed and displacement of the equipment. The center deviation of the laser spot is recorded by the beam receiving device with a camera 23, and the various deviations of the track are obtained by the change of the center point of the laser spot.

[0040] The utility model discloses a crane track visual inspection device which is divided into two parts: a reference light source and an inspection vehicle. The distance between the side wheels on both sides is adjusted by the track width adjustment mechanism on the equipment, so that the wheels on both sides of the equipment are clamped to adapt to tracks of different widths. The method of adjusting and tightening the track is simple and convenient. During the inspection process, the clamping device can be quickly adjusted according to different needs to measure a variety of tracks, thereby expanding the application range of the equipment. The structure is simple and easy to maintain and maintain, reducing the time and cost of maintenance, and effectively avoiding the influence of some equipment problems on the inspection work, thereby improving work efficiency. The inspection vehicle can crawl automatically and integrates a large-range high-precision laser ranging sensor, which has a wide application market.

[0041] The above content is a further detailed description of the present invention in conjunction with the preferred technical solution, and the specific implementation of the present invention cannot be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, simple deductions and substitutions can be made without departing from the concept of the present invention, and all of these should be considered as within the scope of protection of the present invention.

Claims

1. A crane track visual inspection device, characterized by: It includes a light beam emitting device and a light beam receiving device, The light beam emitting device includes a first chassis, a first housing is mounted on the first chassis, a first main control circuit board and a laser pen are disposed in the first housing, the first main control circuit board is electrically connected to the laser pen, a through hole is disposed on the first housing for transmitting the laser, and a first rail clamping assembly is disposed on the first chassis; The beam receiving device includes a second chassis, a second shell is installed on the second chassis, a second main control circuit board, a camera and a walking assembly are arranged in the second shell, the second main circuit board is electrically connected to the camera and the walking assembly respectively, a laser target is provided at one end of the second shell, the camera faces the laser target and is coaxially arranged with the laser target, a second track clamping assembly is provided on the second chassis, the second track clamping assembly includes a linear guide rail, a slider, a clamping claw, a guide block, a rack, a gear and a spring, the linear guide rail is installed at the lower end of the second chassis, two sliders are slidably installed on the linear guide rail, the two sliders are respectively connected to the clamping claws, one end of the clamping claw is provided with a guide wheel of the clamping rail, and the other end of the clamping claw is provided with a guide block, the guide block passes through the slide groove on the second chassis and extends into the second shell and is connected to the rack, the rack is meshed with the gear, and the gear is rotatably installed on the second chassis through a rotating shaft, and the end of the rack away from the guide block is connected to the second chassis by a spring.

2. A crane rail visual inspection device according to claim 1, characterized in that: The first rail clamping assembly and the second rail clamping assembly have the same structure.

3. The crane rail visual inspection device according to claim 1, characterized in that: The beam emitting device also includes a laser pen adjustment assembly, which includes a laser pen mounting bracket, a top block, a height fine-tuning screw, a height spring locating pin, a horizontal fine-tuning screw and a horizontal spring locating pin. The laser pen mounting bracket is sleeved on the laser pen, the top block is mounted on the first shell and is located at the lower end of the laser pen mounting bracket, a height spring locating pin is arranged between the laser pen mounting bracket and the top block, the height fine-tuning screw is threadedly connected to the upper end of the first shell, and the end of the height fine-tuning screw is connected to the upper end of the laser pen mounting bracket, the horizontal fine-tuning screw is threadedly connected to the side of the first shell, and the end of the horizontal fine-tuning screw is connected to the side of the laser pen mounting bracket, and a horizontal spring locating pin is arranged between the laser pen mounting bracket and the first shell.

4. The crane rail visual inspection device according to claim 1, characterized in that: The walking assembly includes a driving motor, a driving wheel and a driven wheel. The driving motor is installed on the second chassis, and the driving wheel is installed on the output shaft of the driving motor. The output shaft of the driving motor is also rotatably connected to the first bearing seat through a bearing. The first bearing seat is installed at one end of the second chassis, and two second bearing seats are installed at the other end of the second chassis. The two second bearing seats are respectively rotatably connected to the driven wheels through bearings. The driven wheel is located between the two second bearing seats, and the lower ends of the driving wheel and the driven wheel extend out of the second chassis.

5. The crane rail visual inspection device according to claim 4, characterized in that: The driven wheel is connected to an encoder via an encoder bracket.

6. The crane rail visual inspection device according to claim 1, characterized in that: Circular magnets are embedded in the lower ends of the first chassis and the second chassis and the inner sides of the clamping claws.

7. The crane rail visual inspection device according to claim 1, characterized in that: A first battery is also provided in the first shell, and the first battery is electrically connected to the first main control circuit board.

8. The crane rail visual inspection device according to claim 1, characterized in that: A second battery is disposed in the second shell, and the second battery is electrically connected to the second main control circuit board.

9. The crane rail visual inspection device according to claim 1, characterized in that: The camera is installed in the second shell through a camera bracket.

10. The crane rail visual inspection device according to claim 1, characterized in that: The guide wheel is a bearing wheel.

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