Lightweight bridge crane

Abstract

The application belongs to the field of bridge cranes, and particularly relates to a lightweight bridge crane, which comprises two main beams and slide beams arranged at the two ends of the two main beams, the two ends of each main beam are provided with an end beam, the two ends of each end beam are provided with an electric wheel one, the end beam is slidably connected with the slide beam through the electric wheel one, an electric crane capable of translating is slidably connected to the main beam, and a main lifting hook for lifting is arranged at the bottom of the electric crane, by arranging the two main beams and four electric cranes, the heavy object can be subjected to horizontal pulling force components in four directions, in the transportation process, the swinging caused by inertia can be effectively resisted, the heavy object can be stably transported, the four main lifting hooks share the gravity, the device can transport heavy goods, and the transportation speed can be appropriately accelerated, so that the work efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of bridge cranes, in particular to a lightweight bridge crane. BACKGROUND

[0002] A bridge crane is a lifting device placed horizontally above a workshop, warehouse, yard, etc. Its two ends are seated on high rails, and its appearance is similar to a bridge. It runs on high rails through a bridge, and a trolley runs horizontally along the rails on the bridge to form a rectangular working range, which can fully utilize the space below the bridge to lift and transport materials without being hindered by ground equipment.

[0003] The characteristics of a bridge crane are: high load capacity: designed for carrying and moving heavy objects, suitable for heavy industrial applications; large span: can cover a wide area, suitable for crossing large work sites; multiple degrees of freedom: longitudinal, lateral and vertical movement, flexible operation.

[0004] Traditional bridge cranes often only assemble one trolley, which results in only being able to transport one heavy object at a time during lifting work, resulting in low transportation efficiency. In addition, due to the existence of only one hook, the suspended object is prone to swing to a large extent under the action of inertia during transportation, resulting in a large safety hazard.

[0005] Therefore, the present application provides a lightweight bridge crane. SUMMARY

[0006] In order to make up for the shortcomings of the prior art and solve at least one technical problem raised in the background art.

[0007] The technical solution adopted by the present application to solve its technical problems is: a lightweight bridge crane according to the present application, comprising two main beams and a sliding beam arranged at the two ends of the two main beams, the two ends of the main beam are provided with an end beam, the two ends of the end beam are provided with an electric wheel one, the end beam is connected with the sliding beam through the electric wheel one, the main beam is provided with an electric crane capable of translating, the bottom of the electric crane is provided with a main lifting hook for lifting, and the lower part of the electric crane and the two ends of the electric crane are provided with an optical module for distance measurement and prompting.

[0008] By setting two main beams and four electric cranes, the number of main hooks reaches four, and the four electric cranes can be moved individually, so that when heavy objects are transported, multiple threads can work simultaneously, and the four electric cranes can also work cooperatively, such as: using four main hooks to connect with one heavy object, and dispersing the positions of the four electric cranes, so that the heavy object will be subjected to four horizontal pull forces, which can effectively resist the swing caused by inertia during transportation, so that the heavy object can be stably transported, and because the four main hooks share the weight, the device can transport heavier goods, and the transportation speed can also be appropriately accelerated, thereby improving the work efficiency.

[0009] In order to ensure the safety of the movement of the four electric cranes and the two main beams, a plurality of optical modules are arranged, the optical modules arranged at the two ends of the electric cranes can be used to detect the position between the two electric cranes on the same main beam, and the optical modules are electrically connected with the moving devices of the electric cranes and will be braked in an emergency when the distance is too close; the optical modules arranged below the electric cranes can detect the distance between the two main beams and are electrically connected with the control system of the electric wheel one to brake in an emergency when the distance is too close, through this arrangement, the device can efficiently transport goods while ensuring the safety of the operation of the device; at the same time, due to the large number of electric cranes, multiple heavy objects can be transported simultaneously, and the operators need to be away from the area where the goods are located, in order to further improve the safety, the optical modules can project a prompt light source downward, multiple light sources are irradiated on the floor of the factory, a prompt light beam is generated, the light beam starts from the optical module and stops at the bottom plate of the factory, thereby forming a light beam in the air, multiple light beams surround the outside of the goods and the main hook to form a prompt area, and the workers are prohibited from entering the area, when the goods move with the electric cranes, since the optical modules are also installed on the electric cranes, they will also move, which can effectively prompt the operators in the factory to avoid the operators from entering the dangerous area, thereby improving the safety of the device during use; at the same time, during the movement of the goods, the optical modules can calculate the maximum swing amplitude generated after emergency braking according to the moving speed of the electric cranes, the weight of the goods and other data, and transmit the data to the optical modules to expand the prompt area, thereby further improving the safety of the device during use.

[0010] Preferably, the main beam is composed of two double-beam tables, the two ends of the two double-beam tables are fixedly connected with the end beams, the top surfaces of the two double-beam tables are fixedly connected with moving rails, the electric cranes are lapped on the top surfaces of the two double-beam tables, the bottoms of the electric cranes are provided with a plurality of electric wheels two, the electric wheels two are clamped on the moving rails, during work, the two electric cranes are arranged on the moving rails on the top of the two double-beam tables, the movement of the electric cranes is driven and controlled by the electric wheels two, the movement of the entire end beam is driven and controlled by the electric wheel one, the main hooks are released downward from between the two double-beam tables, thereby suspending the goods at the bottom and transporting the goods to the designated position.

[0011] Preferably, the optical module comprises a launching seat, the end of the launching seat is provided with a laser range finder, the outer side of the launching seat is provided with an adjusting table for driving the launching seat to vertically rotate, the top of the adjusting table is provided with a rotating table for driving the adjusting table to horizontally rotate, in operation, the laser range finder is a laser launching type range finder, a short-range laser ranging module can be used, through the cooperation of the adjusting table and the rotating table, the emission angle of the laser range finder can be adjusted at will, the laser range finder is adjusted to a horizontal state, and the distance between the two main beams or the two electrical cranes is detected; the laser range finder is adjusted to be downwardly inclined, and multiple laser beams falling on the ground are arranged, which not only can effectively prompt the safe area of the operator, but also when foreign matter such as the operator appears in the area, the laser range finder is emitted after the laser irradiates the foreign matter, resulting in a great change in the data detected by the laser range finder, so that it is known that foreign matter appears in the area, and the electrical crane and the end beam are stopped from moving, which can not only prevent the goods from colliding with the foreign matter during transportation, resulting in damage to the equipment or the goods, but also can ensure the safe movement of the operator in the factory building.

[0012] Preferably, the lower side of the electrical crane is provided with a fitting table on both sides, the fitting table is fixedly connected with the electrical crane through a plurality of connecting frames, end plates are fixedly connected to the front and rear ends of the electrical crane, and a plurality of optical modules are distributed at the bottom of the end plates and the fitting tables, in operation, the optical modules distributed on the end plates can detect the distance between the two electrical cranes when being rotated to be horizontal, and can also emit laser beams downwardly and obliquely, so as to form two sides of the prompt area through the visible laser beams blocking the two ends of the goods; the optical modules distributed on the fitting tables can detect the distance between the two main beams when being rotated to be horizontal, and can also emit laser beams downwardly and obliquely, so as to form the other two sides of the prompt area, thereby forming a surrounding prompt area, and the optical warning effect is realized.

[0013] Preferably, the bottom of the double-beam table is provided with a clamping groove, the top of the fitting table is fixedly connected with a suspension pile matched with the clamping groove, and the cross section of the suspension pile is in a T-shaped structure, in operation, through the cooperation of the clamping groove and the suspension pile, it is ensured that the suspension pile can slide at the bottom of the double-beam table, so that the optical modules at the bottom of the double-beam table are not blocked by other parts and can normally work.

[0014] Preferably, the electric hoist comprises a trolley frame, the electric wheels are installed at four corners of the trolley frame, a cable drum one is fixed at the top of the trolley frame near the front end, a cable drum two is fixed at the top of the trolley frame near the rear end, the bottom suspension end of the cable drum one is fixed with a main hook, the bottom suspension end of the cable drum two is fixed with a secondary hook, the trolley frame is used to carry the cable drum one and the cable drum two during work, the hoisting weight of the secondary hook is far less than that of the main hook, the rated load of the secondary hook is smaller, but the lifting speed is faster. When hoisting some light-weight objects, the secondary hook can complete the hoisting task faster, thereby improving work efficiency, and in some occasions where the main hook and the secondary hook need to work together, the secondary hook can play an important auxiliary role; for example, when hoisting liquid steel, the main hook and the secondary hook need to be used in cooperation; the main hook is responsible for hoisting heavy objects, and the secondary hook is used for adjusting the position of the heavy objects or performing other auxiliary operations.

[0015] Preferably, the front end of the emission seat is provided with a light outlet on both sides, the light outlet is provided with an illuminating lamp, the light outlet is arranged in parallel with the emission port of the laser range finder, and the light outlet is arranged in a flat manner. During work, if multiple laser range finders are used in one emission seat, the cost is high, the data monitoring is more, and the processing difficulty is large. Only one laser range finder located in the middle can be arranged, and ordinary illuminating lamps are used on the outside. The light generated by the illuminating lamps is projected out through the flat light outlet, and is parallel to the light of the laser range finder. A more comprehensive light prompting area can be formed.

[0016] Preferably, the bottom surface of the fitting table is provided with a spraying port, the inside of the fitting table is provided with an atomizer in communication with the spraying port, and the inside of the fitting table is provided with a raw material box in communication with the atomizer. The filling end of the raw material box extends to the double-beam table through the connecting frame. Guardrails are installed on both sides of the double-beam table. During work, clean water, natural plant spices, water-soluble glycol, etc. are put into the raw material box. The liquid is atomized by the atomizer and sprayed out through the spraying port. According to the Tyndall effect, the atomized liquid can assist the light to appear, so that the prompting area is more obvious. The water mist can reduce dust in the factory, and a small amount of natural plant spices can improve the air environment and improve the environmental quality.

[0017] Preferably, the outside of the light outlet is slidably connected with a baffle, two translation boxes are installed on the outside of the emission seat, and an electric wheel three is installed on the outside of the translation box. The electric wheel three is attached to the outside of the baffle. During work, the baffle is translated by the electric wheel three to block the light outlet, so as to control the size of the prompting area. With the increase of the inclination angle, the required prompting area will be larger, and the light required by the larger area will be increased. Through the adjustable setting, the regulation and control function of the prompting area is realized.

[0018] Preferably, the outer side of the light outlet is attached with a light dispersing sheet, the light dispersing sheet is located outside the baffle, the light dispersing sheet is of transparent material, a plurality of convex edges exist on the outer edge of the light dispersing sheet, during operation, as the baffle continuously moves outward, the light will contact the convex edges on the outer edge of the light dispersing sheet, the light will be diffused outward after passing through the convex edges, so that the flat light extends to the outside, so that the prompt area can be framed on a larger scale, and the device can be used when transporting large volume goods.

[0019] The beneficial effects of the present application are as follows:

[0020] 1. The lightweight bridge crane disclosed by the present application, by setting two main beams and four electric cranes, the number of main hooks reaches four, and the four electric cranes can move individually, so that when transporting heavy objects, multiple threads can work simultaneously, and the four electric cranes can also work cooperatively, such as connecting four main hooks with one heavy object, and dispersing the positions of the four electric cranes, so that the heavy object will be subjected to four horizontal pulling forces, which can effectively resist the swing caused by inertia during transportation, so that the heavy object can be stably transported, and because the four main hooks share the weight, the device can transport heavy goods, and the transportation speed can also be appropriately accelerated, thereby improving the work efficiency.

[0021] 2. The lightweight bridge crane disclosed by the present application, by setting a plurality of optical modules, the optical modules distributed at both ends of the electric crane can be used to detect the position between the two electric cranes on the same main beam, the optical module can project a prompt light source downward, and a plurality of light sources are irradiated on the floor of the factory, generating a prompt light beam, which can effectively prompt the operator in the factory to avoid the operator from entering the dangerous area, thereby improving the safety of the device in use; meanwhile, during the movement of the goods, the optical module can calculate the maximum swing amplitude generated after emergency braking according to the movement speed of the electric crane, the weight of the goods and other data, and transmit the transportation to the optical module, so as to enlarge the prompt area of the optical module, thereby further improving the safety of the device in use. BRIEF DESCRIPTION OF DRAWINGS

[0022] The present application will be further described below in conjunction with the drawings.

[0023] Figure 1 is a perspective view of the present application;

[0024] Figure 2 is a side view of the present application;

[0025] Figure 3 is a perspective view of the main beam of the present application;

[0026] Figure 4 is a perspective view of the double-beam table and the electric crane of the present application;

[0027] Figure 5 is a partial perspective view of the fitting table of the present application;

[0028] Figure 6 is a perspective view of the optical module and double-beam table of the present application;

[0029] Figure 7 is a perspective view of the launching seat of the present application;

[0030] In the figure: 1, sliding beam; 2, main beam; 3, end beam; 4, electric hoist; 5, main hook; 6, auxiliary hook; 7, clamping groove; 8, fitting table; 9, double-beam table; 10, moving rail; 11, guardrail; 12, connecting frame; 13, vehicle frame; 14, cable drum I; 15, cable drum II; 16, end plate; 17, optical module; 18, suspension pile; 19, spraying port; 20, rotating table; 21, adjusting table; 22, launching seat; 23, laser range finder; 24, light outlet; 25, diffuser; 26, translation box; 27, baffle. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application will be further described below in conjunction with specific embodiments.

[0032] As shown in the figure, the light-weight bridge crane according to the embodiment of the present application comprises two main beams 2 and sliding beams 1 arranged at the two ends of the two main beams 2, the two ends of each main beam 2 are provided with an end beam 3, the two ends of each end beam 3 are provided with an electric wheel I, the end beam 3 is connected with the sliding beam 1 through the electric wheel I, the main beam 2 is connected with an electric hoist 4 capable of translating, the bottom of the electric hoist 4 is provided with a main hook 5 for lifting, and the lower part of the electric hoist 4 and the two ends of the electric hoist 4 are provided with an optical module 17 for distance measurement and prompting. Figures 1 to 7 By arranging two main beams 2 and four electric hoists 4, the number of main hooks 5 reaches four, and the four electric hoists 4 can move individually, so that when transporting heavy objects, multiple threads can work simultaneously, and the four electric hoists 4 can also work cooperatively, for example, four main hooks 5 are connected with one heavy object, and the positions of the four electric hoists 4 are dispersed, so that the heavy object is subjected to horizontal pulling force components in four directions, which can effectively resist the swing caused by inertia during transportation, so that the heavy object can be stably transported, and because the four main hooks 5 share the gravity, the device can transport heavy goods, and the transportation speed can also be appropriately accelerated, thereby improving the work efficiency.

[0033]

[0034] ​In order to ensure the safety of the movement of the four electric cranes 4 and the two main beams 2, a plurality of optical modules 17 are arranged, the optical modules 17 arranged at the two ends of the electric cranes 4 can detect the distance between the two electric cranes 4 on the same main beam 2, and the optical modules 17 are electrically connected with the moving devices of the electric cranes 4 and can brake in an emergency when the distance is too close; the optical modules 17 arranged below the electric cranes 4 can detect the distance between the two main beams 2 and are electrically connected with the control system of the electric wheel one and can brake in an emergency when the distance is too close. Through the above arrangement, the equipment can transport goods with high efficiency, and the safety of the equipment can also be ensured. Meanwhile, since there are more electric cranes 4, a plurality of heavy objects can be transported at the same time, and the operators need to be away from the areas where the goods are located more frequently. In order to further improve the safety, the optical modules 17 can project prompt light sources downward, and the multiple light sources are irradiated on the floor of the factory to generate a prompt light beam. The light beam starts from the optical module 17 and stops at the bottom plate of the factory, so as to form a light beam in the air. The multiple light beams enclose the outside of the goods and the main hook 5 to form a prompt area, and the staff is prohibited from entering the area. When the goods move with the electric cranes 4, since the optical modules 17 are also installed on the electric cranes 4, the optical modules 17 can also move with the electric cranes 4, which can effectively prompt the operators in the factory to avoid the operators from entering the dangerous area and improve the safety of the equipment in use. Meanwhile, during the movement of the goods, the optical modules 17 can calculate the maximum swing amplitude generated after emergency braking according to the moving speed of the electric cranes 4, the weight of the goods and other data, and transmit the data to the optical modules 17 to expand the prompt area, thereby further improving the safety of the equipment in use.

[0035] The main beam 2 is composed of two double-beam tables 9, the two ends of the two double-beam tables 9 are fixedly connected with the end beams 3, the top surfaces of the two double-beam tables 9 are fixedly connected with the moving rails 10, the electric cranes 4 are overlapped on the top surfaces of the two double-beam tables 9, the bottoms of the electric cranes 4 are provided with a plurality of electric wheels two, and the electric wheels two are clamped on the moving rails 10.

[0036] During work, the two electric cranes 4 are arranged on the moving rails 10 at the top of the two double-beam tables 9, the movement of the electric cranes 4 is driven by the electric wheels two, the movement of the entire end beam 3 is driven by the electric wheel one, the main hook 5 is released downward from between the two double-beam tables 9, so as to suspend the goods at the bottom and transport the goods to the designated position.

[0037] The optical module 17 comprises an emission seat 22, a laser range finder 23 is arranged at the end of the emission seat 22, an adjusting table 21 for driving the emission seat 22 to vertically rotate is arranged on the outer side of the emission seat 22, and a rotating table 20 for driving the adjusting table 21 to horizontally rotate is arranged at the top of the adjusting table 21.

[0038] When working, the laser range finder 23 is a laser emitting range finder, and a short-range laser ranging module can be used. By adjusting the cooperation of the table 21 and the rotating table 20, the emission angle of the laser range finder 23 can be adjusted at will. The laser range finder 23 is adjusted to a horizontal state, which is used to detect the distance between the two main beams 2 or the distance between the two electric cranes 4. The laser range finder 23 is adjusted to be inclined downward, and multiple laser beams falling on the ground are set. Not only can the operator be effectively prompted to the safety area, but also when foreign matter such as an operator appears in the area, the laser of the laser range finder 23 is emitted after irradiating the foreign matter, resulting in a huge change in the data detected by the laser range finder 23, so that it is known that foreign matter appears in the area. The electric crane 4 and the end beam 3 stop moving, which can not only prevent the goods from colliding with foreign matter during transportation, causing damage to equipment or goods, but also can ensure the safe movement of the operator in the factory building.

[0039] The lower side of the electric crane 4 is provided with a fitting table 8 on both sides, the fitting table 8 is fixedly connected with the electric crane 4 through a plurality of connecting frames 12, the front and rear ends of the electric crane 4 are fixedly connected with end plates 16, and a plurality of optical modules 17 are distributed on the bottom of the end plate 16 and the fitting table 8.

[0040] When working, the optical modules 17 distributed on the end plate 16 can detect the distance between the two electric cranes 4 when rotating to the horizontal state, and also can emit laser beams downwardly and obliquely, so as to form two sides of the prompt area by blocking the two ends of the goods with the visible laser beams. The optical modules 17 distributed on the fitting table 8 can detect the distance between the two main beams 2 when rotating to the horizontal state, and also can emit laser beams downwardly and obliquely, so as to form the other two sides of the prompt area, thereby forming a surrounding prompt area, and realizing the effect of optical warning.

[0041] The bottom of the double-beam table 9 is provided with a clamping groove 7, the top of the fitting table 8 is fixedly connected with a suspension pile 18 matched with the clamping groove 7, and the cross section of the suspension pile 18 is arranged in a T shape.

[0042] When working, the cooperation of the clamping groove 7 and the suspension pile 18 ensures that the suspension pile 18 can slide at the bottom of the double-beam table 9, so that the optical modules 17 at the bottom of the double-beam table 9 will not be blocked by other parts and can normally work.

[0043] The electric crane 4 comprises a crane frame 13, the electric wheels II are installed at the four corners of the crane frame 13, the top of the crane frame 13 is fixedly connected with a cable drum I 14 at the front end, the top of the crane frame 13 is fixedly connected with a cable drum II 15 at the rear end, the bottom suspension end of the cable drum I 14 is fixedly connected with the main hook 5, and the bottom suspension end of the cable drum II 15 is fixedly connected with the auxiliary hook 6.

[0044] When working, the vehicle frame 13 is used to carry the cable drum one 14 and the cable drum two 15, the hoisting weight of the auxiliary lifting hook 6 is far less than that of the main lifting hook 5, the rated load of the auxiliary lifting hook 6 is smaller, but the lifting speed is faster. When hoisting some light-weight objects, the auxiliary lifting hook 6 can complete the hoisting task faster, thereby improving work efficiency, and in some occasions where the main lifting hook 5 and the auxiliary lifting hook 6 need to work together, the auxiliary lifting hook 6 can play an important auxiliary role; for example, when hoisting liquid steel, the main lifting hook 5 and the auxiliary lifting hook 6 need to be used in cooperation; the main lifting hook 5 is responsible for hoisting heavy objects, and the auxiliary lifting hook 6 is used for adjusting the position of the heavy objects or performing other auxiliary operations.

[0045] The front end of the emitting seat 22 is provided with a light outlet 24 on both sides, the light outlet 24 is provided with an illuminating lamp, the light outlet 24 is parallel to the emitting port of the laser range finder 23, and the light outlet 24 is flatly arranged;

[0046] When working, if multiple laser range finders 23 are used in one emitting seat 22, the cost is high, the data monitoring is more, and the processing difficulty is large, only one laser range finder 23 located in the middle can be arranged, and ordinary illuminating lamps are used on the outside, the light generated by the illuminating lamps is projected out through the flat light outlet 24, and the light is parallel to the light of the laser range finder 23, so that a more comprehensive light prompting area can be formed.

[0047] The bottom surface of the fitting table 8 is provided with a spraying port 19, the inside of the fitting table 8 is provided with an atomizer communicated with the spraying port 19, and the inside of the fitting table 8 is provided with a raw material box communicated with the atomizer, the filling end of the raw material box extends to the double-beam table 9 through the connecting frame 12, and the double-beam table 9 is provided with guardrails 11 on both sides;

[0048] When working, clean water, natural plant spices and water-soluble glycol are put into the raw material box, the liquid is atomized by the atomizer and sprayed out through the spraying port 19, according to the Tyndall effect, the atomized liquid can assist light to appear, so that the prompting area is more obvious, the water mist can reduce dust in the factory, and a small amount of natural plant spices can improve the air environment and improve the environmental quality.

[0049] The outer side of the light outlet 24 is slidably connected with a baffle 27, the outer side of the emitting seat 22 is provided with two translation boxes 26, the outer side of the translation box 26 is provided with an electric wheel three, and the electric wheel three is attached to the outer side of the baffle 27.

[0050] When working, the baffle 27 is driven to translate by the electric wheel three, so as to block the light outlet 24 and control the size of the prompting area, with the increase of the inclination angle, the required prompting area will be larger, and the light required by the larger area will be increased, so that the adjustable setting can realize the regulation and control function of the prompting area.

[0051] The outer side of the light outlet 24 is attached with a light dispersing sheet 25, which is located outside the baffle 27, the light dispersing sheet 25 is transparent material, and there are multiple convex edges on the outer edge of the light dispersing sheet 25;

[0052] In operation, as the baffle 27 continuously moves outward, the light will contact the convex edges on the outer edge of the light dispersing sheet 25, and the light will spread outward after passing through the convex edges, so that the flat light extends outward, thereby allowing the prompt area to be framed on a larger scale, which can be used when transporting large-volume goods.

[0053] In operation, by setting two main beams 2 and four electric cranes 4, the number of main hooks 5 reaches four, and the four electric cranes 4 can move independently, so that when transporting heavy objects, multiple threads can work simultaneously, and the four electric cranes 4 can also work cooperatively, so that the device can transport heavy goods, and also appropriately speed up the transportation speed, thereby improving the work efficiency.

[0054] By setting multiple optical modules 17, the optical modules 17 distributed at both ends of the electric crane 4 can be used to detect the position between the two electric cranes 4 on the same main beam 2, and the optical modules 17 are electrically connected with the moving device of the electric crane 4, which will be braked in emergency when the distance is too close; the optical modules 17 distributed below the electric crane 4 can detect the distance between the two main beams 2, and are electrically connected with the control system of the electric wheel one, which will be braked in emergency when the distance is too close. Through this setting, the device can transport goods efficiently while ensuring the safety of the device; at the same time, since there are more electric cranes 4, multiple heavy objects can be transported simultaneously, and the operator needs to be away from the area where the goods are located.

[0055] The optical module 17 can project a prompt light source downward, multiple light sources are irradiated on the floor of the factory, a prompt light beam is generated, a prompt area is formed, and workers are prohibited from entering the area, thereby improving the safety of the device in use; at the same time, during the movement of the goods, the optical module 17 can calculate the maximum swing amplitude generated after emergency braking according to the moving speed of the electric crane 4, the weight of the goods and other data, and transmit the data to the optical module 17, so as to enlarge the prompt area and further improve the safety of the device in use.

[0056] The two electric cranes 4 are arranged on the moving rails 10 at the top of the two double-beam tables 9, and the movement of the electric cranes 4 is driven and controlled by the electric wheel two, the movement of the entire end beam 3 is driven and controlled by the electric wheel one, and the main hook 5 is released downward between the two double-beam tables 9, thereby suspending the goods at the bottom and transporting the goods to the designated position.

[0057] The laser range finder 23 is a laser emission type range finder, which can use a short-range laser ranging module. By adjusting the cooperation of the table 21 and the rotating table 20, the emission angle of the laser range finder 23 can be adjusted at will. The laser range finder 23 is adjusted to a horizontal state, which is used to detect the distance between the two main beams 2 or the two electric cranes 4. The laser range finder 23 is adjusted to be inclined downward, and multiple laser beams falling on the ground are set. Not only can the operator be effectively prompted in the safe area, but also when foreign matter such as an operator appears in the area, the laser of the laser range finder 23 is emitted after irradiating the foreign matter, which causes a great change in the data detected by the laser range finder 23, so that it is known that foreign matter appears in the area. The electric crane 4 and the end beam 3 stop moving, which can not only prevent the goods from colliding with foreign matter during transportation, causing damage to equipment or goods, but also can ensure the safe movement of the operator in the factory building.

[0058] The optical modules 17 distributed on the end plate 16 can detect the distance between the two electric cranes 4 when rotated to be horizontal, and also can emit laser beams downwardly inclined, which can form two sides of the prompt area by blocking the two ends of the goods with visible laser beams. The optical modules 17 distributed on the fitting table 8 can detect the distance between the two main beams 2 when rotated to be horizontal, and also can emit laser beams downwardly inclined, which can form the other two sides of the prompt area, so as to form a surrounding prompt area, thereby realizing the effect of optical warning.

[0059] Through the cooperation of the clamping groove 7 and the suspension pile 18, it is ensured that the suspension pile 18 can slide at the bottom of the double-beam table 9, so that the optical modules 17 at the bottom of the double-beam table 9 will not be blocked by other parts and can normally work.

[0060] The car frame 13 is used to carry the cable drum one 14 and the cable drum two 15. The lifting weight of the auxiliary hoist 6 is far less than that of the main hoist 5. The auxiliary hoist 6 has a smaller rated load but a faster lifting speed. When hoisting some light-weight objects, the auxiliary hoist 6 can complete the hoisting task faster, thereby improving the work efficiency. In some occasions where the main hoist 5 and the auxiliary hoist 6 need to work together, the auxiliary hoist 6 can play an important auxiliary role. For example, when hoisting molten steel, the main hoist 5 and the auxiliary hoist 6 need to be used in cooperation. The main hoist 5 is responsible for hoisting heavy objects, while the auxiliary hoist 6 is used to adjust the position of the heavy objects or perform other auxiliary operations.

[0061] If a plurality of laser range finders 23 are used in one emission seat 22, the cost is relatively high, the data monitoring is more, and the processing difficulty is larger. Only one laser range finder 23 located in the middle can be set, and ordinary illuminating lamps are used on the outside. The light generated by the illuminating lamps is projected out through the flat light outlet 24, and is parallel to the light of the laser range finder 23, so that a more comprehensive light prompt area can be formed.

[0062] By putting the cleaning water, natural plant spices, water-soluble glycol and the like in the raw material box, the liquid is atomized by the atomizer and sprayed out through the spraying port 19, according to the Tyndall effect, the atomized liquid can assist light to appear, so that the prompt area is more obvious, and the water mist can reduce dust in the factory, and a small amount of natural plant spices can improve the air environment and improve the environmental quality.

[0063] The baffle 27 is translated by the electric wheel three-drive to block the light outlet 24, so that the size of the prompt area is controlled, and as the inclination angle increases, the required prompt area is larger, and the light required by the larger area is increased, so that the adjustable setting is realized to control the prompt area.

[0064] As the baffle 27 continuously moves outward, the light is in contact with the convex edges of the outer edge of the diffuser 25, the light is diffused outward through the convex edges, the flat light is extended to the outside, so that the prompt area can be framed on a larger scale, and the larger volume goods can be used.

[0065] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, the above examples and the description in the specification are only to illustrate the principle of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A lightweight bridge crane, characterized by: The invention comprises two main beams and sliding beams arranged at both ends of the two main beams, end beams are installed at both ends of the main beams, electric wheels are installed at both ends of the end beams, the end beams are slidably connected to the sliding beams via the electric wheels, an electric crane capable of translation is slidably connected to the main beams, a main hook for lifting is installed at the bottom of the electric crane, and optical modules for distance measurement and prompting are installed below the electric crane and at both ends of the electric crane; The main beam is composed of two double-beam platforms, both ends of which are fixedly connected to the end beams, and the top surfaces of the two double-beam platforms are fixedly connected to movable rails. The electric crane is overlapped on the top surfaces of the two double-beam platforms. The bottom of the electric crane is equipped with multiple electric wheels, which are clamped on the movable rails. The optical module includes a transmitting base, a laser rangefinder is installed at the end of the transmitting base, an adjustment platform for driving the transmitting base to rotate vertically is installed on the outside of the transmitting base, and a rotating platform for driving the adjustment platform to rotate horizontally is installed on the top of the adjusting platform; There are laminating platforms on both sides of the lower part of the electric crane. The laminating platforms are fixed to the electric crane through multiple connecting frames. The front and rear ends of the electric crane are fixed with end plates. The multiple optical modules are distributed on the end plates and the bottom of the laminating platform. A slot is provided at the bottom of the double-beam platform, and a suspension pile adapted to the slot is fixedly connected to the top of the laminating platform, wherein the cross section of the suspension pile is T-shaped; The electric crane includes a vehicle frame, the electric wheel 2 is installed at the four corners of the vehicle frame, a cable reel 1 is fixedly connected to the front end of the top of the vehicle frame, a cable reel 2 is fixedly connected to the rear end of the top of the vehicle frame, the bottom suspension end of the cable reel 1 is fixedly connected to the main hook, and the bottom suspension end of the cable reel 2 is fixedly connected to the auxiliary hook.

2. A lightweight bridge crane according to claim 1, characterized in that: The front end of the transmitting base is provided with light outlets on both sides, and the light outlets are provided with lighting lamps. The light outlets are arranged in parallel with the transmitting port of the laser rangefinder, and the light outlets are arranged in a flat manner.

3. A lightweight bridge crane according to claim 2, characterized in that: A spraying port is provided on the bottom surface of the laminating table, an atomizer connected to the spraying port is provided inside the laminating table, and a raw material box connected to the atomizer is provided inside the laminating table. The filling end of the raw material box extends to the double-beam platform through a connecting frame, and guardrails are installed on both sides of the double-beam platform.

4. A lightweight bridge crane according to claim 3, characterized in that: The outer side of the light outlet is slidably connected with a baffle, the outer side of the transmitting seat is equipped with two translation boxes, the outer side of the translation box is equipped with an electric wheel three, and the electric wheel three is in contact with the outer side of the baffle.

5. The lightweight bridge crane according to claim 4, characterized in that: A diffuser is attached to the outer side of the light outlet. The diffuser is located on the outer side of the baffle. The diffuser is made of a transparent material, and a plurality of ridges are present on the outer edge of the diffuser.

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