A vehicle collision avoidance device

Abstract

The utility model relates to a kind of travelling crane anti-collision devices, including two fixed main girder, two mobile beams and track trolley, and the both ends of mobile beam are fixed with mobile base, two mobile bases are respectively slidably connected with two fixed main girder, first motor that mobile base is equipped with driving its sliding, track trolley is slidably installed on mobile beam, second motor that track trolley is equipped with driving its sliding, the bottom of track trolley is provided with electric hoist, one of mobile beam is fixed with photoelectric switch, the other mobile beam is fixed with mirror surface reflector, photoelectric switch and mirror surface reflector are oppositely arranged, photoelectric switch and first motor are electrically connected, two limiters are fixed on the mobile beam, two limiters are respectively located between track trolley and two fixed main girder.The utility model realizes the monitoring control to the travelling crane operating state, reduces collision injury, effectively improves the safety and reliability of travelling crane operation.

Description

Technical Field

[0001] This utility model relates to the field of vehicle collision avoidance technology, specifically to a vehicle collision avoidance device. Background Technology

[0002] Overhead cranes are a common term for cranes, including single-girder and double-girder cranes, and are widely used in factories, production workshops, and warehouses. Current overhead cranes typically consist of a fixed main beam, a moving beam, and a track trolley. Two fixed main beams are usually fixedly installed on the ceiling of the workshop, extending along the length of the workshop and parallel to each other along the width. The moving beams are slidably connected to the two fixed main beams at both ends, and are driven by a drive mechanism to slide along the fixed main beams, thus achieving longitudinal displacement. The track trolley is slidably installed on and along the moving beams, thus achieving lateral displacement. An electric hoist for lifting items is installed at the bottom of the track trolley.

[0003] In existing workshops, multiple moving beams are typically mounted on two fixed main beams, forming multiple overhead cranes. During crane movement, collisions easily occur between the moving beams, and the track trolleys on the moving beams, especially upon reaching their destination, are prone to colliding with the fixed main beams at both ends due to inertia. These collisions not only damage equipment but can also trigger serious production accidents, threatening personnel safety. Traditional collision avoidance measures often rely on operator visual judgment and manual control, but in complex or emergency situations, this reliance is often insufficient to prevent collisions. Therefore, developing a crane collision avoidance device capable of providing early warning and taking measures to reduce collision damage is particularly important. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a vehicle collision avoidance device that enables monitoring and control of vehicle operation status, reduces collision damage, and effectively improves the safety and reliability of vehicle operations.

[0005] This utility model is achieved through the following technical solution: a vehicle anti-collision device, comprising two fixed main beams, two movable beams, and a track trolley. The two fixed main beams are distributed in parallel along the transverse direction, and the two movable beams are distributed in parallel along the longitudinal direction. Movable bases are fixed at both ends of the movable beams, and the two movable bases are slidably connected to the two fixed main beams respectively. A first motor is provided on the movable base to drive its sliding. The track trolley is slidably mounted on the movable beams, and a second motor is provided on the track trolley to drive its sliding. An electric hoist is provided at the bottom of the track trolley. A photoelectric switch is fixed on one of the movable beams, and a mirror reflector is fixed on the other movable beam. The photoelectric switch and the mirror reflector are arranged opposite each other. The photoelectric switch is electrically connected to the first motor. Two limiters are fixed on the movable beams, and the two limiters are respectively located between the track trolley and the two fixed main beams.

[0006] In this scheme, when the two moving beams move longitudinally, a photoelectric switch emits a signal. This signal is reflected by a mirror reflector, allowing the photoelectric switch to receive the reflected signal and calculate the distance between the two moving beams. When the distance reaches a preset minimum, the photoelectric switch sends a feedback signal to control the first motor to decelerate and stop, preventing collisions between the two moving beams. By installing limit switches on both sides of the track trolley, collisions between the track trolley and the fixed main beams on both sides are prevented during lateral movement. This enables monitoring and control of the trolley's operating status, effectively reduces collision damage, significantly improves the safety and reliability of trolley operations, and extends the trolley's service life.

[0007] As an optimization, the fixed main beam is an I-beam, and the movable base includes a C-shaped steel seat. The C-shaped steel seat is mounted on the top wing plate of the fixed main beam. Two sets of first rollers, distributed vertically, are rotatably installed inside the C-shaped steel seat. The two sets of first rollers contact the top and bottom surfaces of the top wing plate, respectively. The first motor drives one set of first rollers to roll. In this optimized solution, the C-shaped steel seat is engaged with the upper and lower ends of the top wing plate of the fixed main beam by the two sets of first rollers, achieving a sliding connection between the movable base and the fixed main beam. The rolling of the first rollers makes the sliding of the movable base more stable.

[0008] As an optimization, the moving beam is an I-beam, and the track trolley includes a rectangular frame fitted onto the moving beam. Two sets of second rollers are rotatably mounted within the rectangular frame, located on both sides of the web of the moving beam and contacting its bottom flange. In this optimized design, the rectangular frame rolls along the bottom flange of the moving beam via the second rollers on both sides, achieving a sliding connection between the track trolley and the moving beam, resulting in greater stability.

[0009] As an optimization, the limiter includes two C-shaped frames arranged opposite each other, located on both sides of the moving beam. The upper and lower ends of the two C-shaped frames are fixed together by bolts, and a buffer mechanism is provided on the outer wall of the C-shaped frames. This optimized limiter clamps and fixes the moving beam using two bolted C-shaped frames, facilitating adjustment of the limit position and making it more convenient to use.

[0010] As an optimization, the buffer mechanism includes a mounting box fixed to the outer wall of the C-shaped frame. A sliding plate is slidably disposed within the mounting box. A limit rod is fixed to the side of the sliding plate near the track trolley, extending through the mounting box to the outside. A buffer block is fixed to the outer end of the limit rod. A buffer spring is provided on the side of the sliding plate away from the track trolley, fixed inside the mounting box. A limit plate is fixed to the outer wall of the track trolley, with the limit plate and buffer block positioned opposite each other. In this optimized solution, when the limit plate of the track trolley contacts the buffer block, it pushes the limit rod to slide into the mounting box. The elastic buffering of the sliding plate by the buffer spring avoids hard collisions, achieving buffering of the track trolley and improving stability and limiting effect.

[0011] As an optimization, an audible and visual alarm is also included, which is connected to a photoelectric switch via an electrical signal. This optimized solution triggers an alarm via the audible and visual alarm when the distance between the two moving beams reaches a set minimum, alerting personnel and further improving safety.

[0012] The beneficial effects of this utility model are as follows: when the two moving beams move longitudinally, a signal is emitted by the photoelectric switch. The signal is reflected by the mirror reflector so that the photoelectric switch receives the reflected signal, thereby calculating the distance between the two moving beams. When the distance reaches the set minimum distance, the photoelectric switch feeds back a signal to control the first motor to decelerate and stop, so as to avoid the two moving beams from colliding. At the same time, the sound and light alarm sounds an alarm to remind people to pay attention, further improving safety.

[0013] By setting limiters on both sides of the track trolley, collisions between the track trolley and the fixed main beams on both sides are prevented when the track trolley moves laterally. This enables monitoring and control of the train's operating status, effectively reduces collision damage, and significantly improves the safety and reliability of train operations, as well as extending the service life of the train.

[0014] The limiter clamps and fixes the moving beam with two screwed C-shaped frames, making it easy to adjust the limit position and use. The buffer mechanism on the limiter buffers the track trolley, further improving stability and limiting effect. Attached Figure Description

[0015] Figure 1 This is a front view of the present utility model;

[0016] Figure 2 for Figure 1 Enlarged view of part A;

[0017] Figure 3 This is a top view of the present invention;

[0018] Figure 4 for Figure 3 Enlarged view of part B;

[0019] Figure 5 for Figure 3 Enlarged view of part C;

[0020] Figure 6 This is a schematic diagram of the track trolley and the moving beam structure;

[0021] Figure 7 This is a schematic diagram of the limiter and the moving beam structure;

[0022] As shown in the figure:

[0023] 1. Fixed main beam; 2. Moving beam; 3. Moving base; 31. C-shaped steel seat; 32. First roller; 4. Track trolley; 41. Rectangular frame; 42. Second roller; 5. Electric hoist; 6. Photoelectric switch; 7. Mirror reflector; 8. Limiter; 81. C-shaped frame; 82. Bolt; 83. Buffer mechanism; 831. Mounting box; 832. Sliding plate; 833. Limiting rod; 834. Buffer block; 835. Buffer spring; 84. Limiting plate; 9. First motor; 10. Audible and visual alarm; 11. Second motor. Detailed Implementation

[0024] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0025] like Figures 1 to 7 As shown, a vehicle collision avoidance device includes two fixed main beams 1, two movable beams 2, and a track trolley 4. The two fixed main beams 1 are distributed parallel to each other in the transverse direction and are fixedly installed on the roof of the factory building.

[0026] Two movable beams 2 are distributed parallel to each other along the longitudinal direction. Movable bases 3 are fixed at both ends of the movable beams 2. The two movable bases 3 are slidably connected to the two fixed main beams 1 respectively. A first motor 9 that drives the movable base to move is provided on the movable base 3.

[0027] Specifically, the fixed main beam 1 is an I-beam. The movable base 3 includes a C-shaped steel seat 31, which is mounted on the top wing plate of the fixed main beam 1. Two sets of first rollers 32, distributed vertically, are rotatably installed inside the C-shaped steel seat 31, and the two sets of first rollers 32 contact the top and bottom surfaces of the top wing plate, respectively. The first motor 9 drives one set of first rollers 32 to roll.

[0028] The first roller 32 located at the top includes a shaft with three rollers fixedly connected to it. The shaft is rotatably connected to the C-shaped steel seat 31, and the first motor 9 drives the shaft to rotate. Multiple sets of first rollers 32 are arranged on the top of the moving beam 2, which improves the stability of the C-shaped steel seat 31 through their support.

[0029] The first roller 32 located below includes two shafts, which are distributed on both sides of the web of the fixed main beam 1. The two shafts are fixedly connected to the C-shaped steel seat 31, and rollers are rotatably mounted on the shafts.

[0030] The C-shaped steel base 31 is secured to the upper and lower ends of the top wing plate of the fixed main beam 1 by two sets of first rollers 32, thereby achieving a sliding connection between the movable base 3 and the fixed main beam 1. The first motor 9 drives the upper first rollers 32 to roll, causing the movable base 3 to move along the fixed main beam 1, achieving longitudinal displacement and making the sliding of the movable base 3 more stable.

[0031] A photoelectric switch 6 is fixed on one of the moving beams 2, and a mirror reflector 7 is fixed on the other moving beam 2. The photoelectric switch 6 and the mirror reflector 7 are positioned opposite each other, and the photoelectric switch 6 is electrically connected to the first motor 9. In this embodiment, the photoelectric switch 6 is a KN-DG10P from KNEVO.

[0032] When the two moving beams 2 move longitudinally, the photoelectric switch 6 emits a signal. The signal is reflected by the mirror reflector 7, and the photoelectric switch 6 receives the reflected signal, thereby calculating the distance between the two moving beams 2. When the distance reaches the set minimum distance, the photoelectric switch 6 feeds back a signal to control the first motor 9 to decelerate and stop, so as to avoid the two moving beams 2 from colliding.

[0033] Preferably, the device also includes an audible and visual alarm 10, which is fixedly installed on the movable beam 2 and is electrically connected to the photoelectric switch 6. When the distance between the two movable beams 2 reaches a set minimum distance, the audible and visual alarm 10 sounds an alarm to alert personnel and further improve safety.

[0034] The track trolley 4 is slidably mounted on the moving beam 2. The track trolley 4 is equipped with a second motor 11 that drives the track trolley to move, and an electric hoist 5 is installed at the bottom of the track trolley 4.

[0035] Specifically, the movable beam 2 is an I-beam. The track trolley 4 includes a rectangular frame 41 fitted onto the movable beam 2, and two sets of second rollers 42 are rotatably mounted inside the rectangular frame 41. The two sets of second rollers 42 are located on both sides of the web of the movable beam 2 and contact the bottom flange of the movable beam 2.

[0036] In this embodiment, each group of second rollers 42 includes multiple rollers arranged along the axial direction of the moving beam 2. Each roller is fixedly connected to a rotating shaft, which is rotatably connected to the rectangular frame 41. The second motor 11 drives the rotation of the rotating shaft. The stability of the rectangular frame 41 is ensured by the support of the multiple rollers. The rectangular frame 41 moves the track trolley 4 along the moving beam 2 by the rolling of the second rollers 42 driven by the second motor 11. The sliding connection between the track trolley 4 and the moving beam 2 enables lateral displacement, further enhancing stability.

[0037] Two limiters 8 are fixed on the movable beam 2, and the two limiters 8 are located between the track trolley 4 and the two fixed main beams 1 on both sides.

[0038] Specifically, the limiter 8 includes two C-shaped frames 81 arranged opposite each other, located on both sides of the moving beam 2. The upper and lower ends of the two C-shaped frames 81 are connected and fixed by bolts 82, and a buffer mechanism 83 is provided on the outer wall of the C-shaped frames 81. The limiter 8 clamps and fixes the moving beam 2 through the two screwed C-shaped frames 81, which facilitates adjustment of the limit position and makes it more convenient to use.

[0039] The buffer mechanism 83 includes a mounting box 831 fixed to the outer wall of the C-shaped frame 81. A sliding plate 832 is slidably disposed inside the mounting box 831, sliding along the axial direction of the moving beam 2 within the mounting box 831. A limiting rod 833 is fixedly connected to the side of the sliding plate 832 near the track trolley 4. The limiting rod 833 extends through the mounting box 831 to the outside, and a buffer block 834 is fixedly connected to the end of the limiting rod 833 located outside the mounting box. A buffer spring 835 is provided on the side of the sliding plate 832 away from the track trolley 4, and the buffer spring 835 is fixedly disposed inside the mounting box 831. A limiting plate 84 is fixedly connected to the outer wall of the track trolley 4, and the limiting plate 84 is disposed opposite to the buffer block 834.

[0040] When the limiting plate 84 of the track trolley 4 comes into contact with the buffer block 834, it pushes the limiting rod 833 to slide into the mounting box 831. The buffer spring 835 provides elastic buffering for the sliding plate 832, avoiding hard collisions and achieving buffering for the track trolley 4, thereby improving stability and limiting effect.

[0041] This embodiment also includes a control box, which is equipped with a controller. The photoelectric switch 6, the first motor 9, the second motor 11, and the audible and visual alarm 10 are all electrically connected to the controller. The controller can be set with a minimum distance value. When the distance measured by the photoelectric switch 6 reaches the set value, the photoelectric switch 6 feeds back a distance signal to the controller. The controller then controls the action of the first motor 9 to achieve automatic deceleration and stopping, as well as the activation of the audible and visual alarm 10. The control program of the controller can be programmed by those skilled in the art, and will not be elaborated upon here.

[0042] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A vehicle anti-collision device, comprising two fixed main beams (1), two movable beams (2), and a track trolley (4), wherein the two fixed main beams (1) are distributed in parallel along the transverse direction, and the two movable beams (2) are distributed in parallel along the longitudinal direction, wherein movable bases (3) are fixedly provided at both ends of the movable beams (2), and the two movable bases (3) are slidably connected to the two fixed main beams (1), wherein a first motor (9) is provided on the movable base (3) to drive its sliding, the track trolley (4) is slidably mounted on the movable beams (2), and a second motor (11) is provided on the track trolley (4) to drive its sliding, and an electric hoist (5) is provided at the bottom of the track trolley (4), characterized in that: One of the moving beams (2) is fixed with a photoelectric switch (6), and the other moving beam (2) is fixed with a mirror reflector (7). The photoelectric switch (6) and the mirror reflector (7) are arranged opposite to each other. The photoelectric switch (6) is electrically connected to the first motor (9). Two limiters (8) are fixed on the moving beam (2). The two limiters (8) are located between the track trolley (4) and the two fixed main beams (1) on both sides.

2. The vehicle collision avoidance device according to claim 1, characterized in that: The fixed main beam (1) is an I-beam, and the movable base (3) includes a C-shaped steel seat (31). The C-shaped steel seat (31) is covered on the top wing plate of the fixed main beam (1). Two sets of first rollers (32) are rotatably installed inside the C-shaped steel seat (31). The two sets of first rollers (32) are in contact with the top and bottom surfaces of the top wing plate respectively. The first motor (9) drives one set of first rollers (32) to roll.

3. The vehicle collision avoidance device according to claim 1, characterized in that: The movable beam (2) is an I-beam, and the track trolley (4) includes a rectangular frame (41) fitted on the movable beam (2). Two sets of second rollers (42) are rotatably installed inside the rectangular frame (41). The two sets of second rollers (42) are located on both sides of the web of the movable beam (2) and contact the bottom wing plate of the movable beam (2).

4. The vehicle collision avoidance device according to claim 1, characterized in that: The limiter (8) includes two C-shaped frames (81) arranged opposite to each other. The two C-shaped frames (81) are located on both sides of the moving beam (2). The upper and lower ends of the two C-shaped frames (81) are connected and fixed by bolts (82). A buffer mechanism (83) is provided on the outer wall of the C-shaped frame (81).

5. The vehicle collision avoidance device according to claim 4, characterized in that: The buffer mechanism (83) includes a mounting box (831) fixed to the outer wall of the C-shaped frame (81). A sliding plate (832) is slidably arranged inside the mounting box (831). A limiting rod (833) is fixed to the side of the sliding plate (832) near the track trolley (4). The limiting rod (833) extends through the mounting box (831) to the outside. A buffer block (834) is fixed to the end of the limiting rod (833) located outside. A buffer spring (835) is provided on the side of the sliding plate (832) away from the track trolley (4). The buffer spring (835) is fixed inside the mounting box (831). A limiting plate (84) is fixed to the outer wall of the track trolley (4). The limiting plate (84) and the buffer block (834) are arranged opposite to each other.

6. The vehicle collision avoidance device according to claim 1, characterized in that: It also includes an audible and visual alarm (10), which is electrically connected to a photoelectric switch (6).

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