A curve-running and turnable single-track hoist

Abstract

The invention provides a curve-running and turnable single-rail hoist, belonging to the technical field of single-rail hoists; it includes a track body, a driving trolley, and an electric hoist fixed to the bottom of the driving trolley. The track body is used for guiding during the movement of the driving trolley, and the track body includes a fixed track and a movable track. Through the arrangement of the lifting driving member and the movable track, during maintenance, only need to move the driving trolley to the position of the movable track, release the fixing of the movable track by the connecting mechanism, and start the lifting driving member, then the movable track together with the driving trolley and the electric hoist can be smoothly lowered to the ground, facilitating the operation of maintenance personnel. After the maintenance is completed, then use the lifting driving member to lift the three of them up, and use the connecting mechanism to reconnect the movable track and the fixed track. The whole process does not require maintenance personnel to perform cumbersome disassembly and lifting of the driving trolley and the electric hoist at high places, thereby improving the convenience and safety during the maintenance process.

Description

Technical Field

[0001] The present invention relates to the technical field of single-track cranes, and particularly to a curve-running and turnable single-track crane. Background Art

[0002] A single-track crane is a device used for transporting workpieces or materials, mainly composed of a track, a driving trolley, and an electric hoist. The track is usually composed of I-beams, and the I-beams can be bent to form an arc, so as to realize the curve running and turning of the driving trolley. The track is often fixed to the ceiling of a building by embedded bolts. The driving wheels and rollers on the driving trolley are both attached to the track. The driving wheels are driven by a motor to rotate, so as to realize the movement of the driving trolley on the track. The motor is installed on the side plate of the driving trolley, and the electric hoist is installed at the bottom of the side plate of the driving trolley for lifting materials or workpieces. A sliding wire is often installed on the side of the track. The current collector on the driving trolley is attached to the sliding wire and moves along the surface of the sliding wire when the driving trolley moves, so as to supply power to the driving trolley and the electric hoist. At the same time, when it is necessary to repair the driving trolley or the electric hoist, it is necessary to use a lifting device to lift the maintenance personnel to a high place, and then remove the electric hoist and the driving trolley from the track at a high place, and then use the lifting device to lower the maintenance personnel together with the electric hoist and the driving trolley to the ground, and then repair the electric hoist and the driving trolley. After the repair is completed, it is also necessary to lift the repaired electric hoist and driving trolley to the track and install them on the track.

[0003] During the use of a common curve-running and turnable single-track crane, when the electric hoist and the driving trolley are damaged and need to be repaired, due to the high installation positions of the electric hoist and the driving trolley, the maintenance personnel must use a lifting device to rise to a high place for operation. When disassembling at a high place, due to the large weights of the electric hoist and the driving trolley, not only is the operation difficult, but also additional lifting is required to ensure the smoothness of the disassembly process. After the disassembly is completed, the maintenance personnel also need to use a lifting device to transport the components to the ground for repair. After the repair is completed, it is necessary to rely on the lifting device again to lift the electric hoist and the driving trolley to a high place and complete the installation at a high place. During the entire repair process, not only complex disassembly and assembly operations need to be carried out at a high place, but also the lifting of the heavy electric hoist and driving trolley needs to be dealt with. The safety and convenience during the repair process need to be improved. Therefore, the present application provides a curve-running and turnable single-track crane to meet the requirements. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a curve-running and turnable single-track crane to solve the problems that the electric hoist and the driving trolley of a common curve-running and turnable single-track crane are at high positions and have large weights, and complex disassembly, assembly, and lifting operations need to be carried out at a high place with the help of a lifting device during repair, and the safety and convenience during the repair process need to be improved.

[0005] To solve the above technical problems, the present invention provides the following technical solutions:

[0006] A curve-running and turnable single-track crane includes a track body, a driving trolley, and an electric hoist fixed to the bottom of the driving trolley. The track body is used for guiding the driving trolley during movement. The track body includes a fixed track and a movable track. The fixed track is fixed to the ceiling of a building. The end of the movable track is in contact with the end of the fixed track. A lifting driving member is provided on the top of the movable track, and the lifting driving member is fixed to the ceiling of the building. A connecting mechanism is provided at the connection between the movable track and the fixed track. The lifting driving member is used to drive the driving trolley, the electric hoist, and the movable track to move up and down.

[0007] Preferably, the connecting mechanism includes an upper positioning component provided on the top of the movable track and a lower positioning component provided on the bottom of the movable track. The upper positioning component is used for positioning the top positions of the movable track and the fixed track, and the lower positioning component is used for positioning the bottom positions of the movable track and the fixed track.

[0008] Preferably, the upper positioning component includes a plurality of positioning bars fixed to the top of the movable track. A positioning block is fixed to the top of the fixed track. The bottom of the positioning block is in contact with the top of the movable track. A positioning groove is formed on the side surface of the positioning block, and the inner wall of the positioning groove is in contact with the side surface of the positioning bar. The lifting driving member is a winch, and the end of the steel wire rope of the lifting driving member is fixedly connected to the top of the positioning bar.

[0009] Preferably, a first inclined surface is provided on the side surface of the positioning bar, and a second inclined surface is provided on the inner wall of the positioning groove. The first inclined surface is in contact with the second inclined surface.

[0010] Preferably, a reinforcing rib is fixed to the top of the positioning block, and the reinforcing rib is fixed to the top of the fixed track.

[0011] Preferably, the lower positioning component includes a plurality of rotating shafts provided on the bottom of the movable track. A fixed block is fixedly sleeved on the circumferential surface of the rotating shaft, and the fixed block is fixed to the bottom of the movable track. A movable plate is rotatably connected to the circumferential surface of the rotating shaft. One side of the movable plate close to the fixed block is rotatably connected to the side surface of the fixed block. The movable plate is in contact with the bottoms of the movable track and the fixed track. A long strip groove is formed at the position corresponding to the fixed track on the top of the movable plate. A screw rod is fixed to the bottom of the fixed track. The screw rod is in contact with the inner wall of the long strip groove, and a nut is threadedly connected to the screw rod. The nut presses against the bottom of the movable plate.

[0012] Preferably, a notch is formed on the side surface of the movable plate. The notch is located below the movable track, and a convex portion is provided on the inner wall of the notch. Grooves are formed on the opposite sides of the convex portion. A through groove is formed inside the rotating shaft. A limiting pin is slidably connected to the inner wall of the through groove. One end of the limiting pin is flush with the end of the rotating shaft. A columnar block is fixed to the other end of the limiting pin. The columnar block is in contact with the inner wall of the groove. An annular groove is formed on the inner wall of the through groove. A ring is sleeved on the circumferential surface of the limiting pin. A tension spring is fixed to the side of the ring close to the columnar block. One end of the tension spring close to the columnar block is fixedly connected to the side of the inner wall of the annular groove close to the columnar block. And the limiting pin is located inside the tension spring. A limiting block is fixed to the side surface of the side plate of the driving trolley. The position of the limiting block corresponds to the position of the limiting pin. When disassembling the movable track, the nut is unscrewed from the screw rod, and the movable plate rotates downward. During the downward rotation of the movable plate, the inner wall of the groove on the convex portion drives the columnar block to be extruded, so that the columnar block drives the limiting pin to extend out of the rotating shaft, realizing the limit during the lifting and lowering of the driving trolley on the movable track.

[0013] Preferably, the inner wall of the groove is a curved surface, and the shape of the columnar block is adapted to the shape of the inner wall of the groove.

[0014] Preferably, an infrared sensor is embedded in the inner wall of the annular groove, and an audible and visual alarm lamp is installed on the top of the movable track. The audible and visual alarm lamp is electrically connected to the infrared sensor.

[0015] Preferably, a bevel three is provided at the end of the movable track, and a bevel four is provided at the end of the fixed track. The bevel three is in contact with the bevel four.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] In the above solution, through the arrangement of the lifting driving member and the movable track, during maintenance, only need to move the driving trolley to the position of the movable track, release the fixation of the connecting mechanism on the movable track, and start the lifting driving member, then the movable track together with the driving trolley and the electric hoist can be smoothly moved down to the ground, which is convenient for maintenance personnel to operate. After the maintenance is completed, the three are lifted up by the lifting driving member, and the movable track is reconnected to the fixed track by using the connecting mechanism. The whole process does not require maintenance personnel to perform cumbersome disassembly and lifting of the driving trolley and the electric hoist at a high place, thus improving the convenience and safety during the maintenance process.

[0018] Through the settings of the upper positioning component and the lower positioning component, when disassembling the connection mechanism, the maintenance personnel only need to disassemble the nut at the lower positioning component to lower the movable track. During the lowering process, the positioning strip of the upper positioning component will automatically separate from the positioning block. When raising the movable track, the positioning strip is embedded in the inner wall of the positioning groove of the positioning block to position the top of the movable track and the fixed track. Subsequently, tighten the nut to fix the movable plate, thereby positioning the bottom of the movable track and the fixed track. The operation is simple, and there is no need for cumbersome disassembly and assembly steps when fixing and disassembling the movable track, further improving the convenience and safety during the maintenance process.

[0019] Through the setting of the limit pin, when the nut fixing the movable plate is unscrewed, the movable track descends, and the movable plate flips downward under its own gravity, thereby driving the inner wall of the groove of the convex part to squeeze the columnar block, causing the limit pin to protrude from the rotating shaft and cooperate with the limit block to effectively limit the displacement of the driving trolley during the descent of the movable track. When the movable track rises, the movable plate is also in the downward-flipped state, and the limit pin can still limit the driving trolley. During the lifting and lowering process of the movable track, it is not necessary to manually hold it to prevent the driving trolley and the electric hoist from slipping off the movable track, further improving the safety and convenience during the maintenance process.

[0020] Through the setting of the infrared sensor, after the movable track is fixed, the vibration generated by the driving trolley moving on the movable track may cause the nut to loosen. Once the nut loosens, the movable plate will rotate downward, thereby driving the limit pin to move through the cooperation of the convex part and the columnar block. The limit pin drives the ring to move, and the infrared sensor will sense the displacement of the ring and trigger the sound and light alarm to promptly remind the personnel that there is an abnormality at the connection between the movable track and the fixed track, ensuring the safe driving of the driving trolley.

[0021] Through the settings of the inclined surface three and the inclined surface four, after connecting the movable track and the fixed track, by the fitting of the inclined surface three on the movable track and the inclined surface four on the fixed track, a tight connection and accurate positioning at the joint between the movable track and the fixed track are achieved, effectively preventing misalignment between the two and affecting the normal operation of the driving trolley. Brief Description of the Drawings

[0022] This part of the drawings constituting a part of the specification shows the embodiments of the present disclosure and, together with the specification, is further used to explain the principles of the present disclosure and enable those skilled in the relevant art to implement and use the present disclosure.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a three-dimensional structure schematic diagram of the movable track of the present invention;

[0025] Figure 3Schematic three-dimensional structure diagram of the driving trolley of the present invention;

[0026] Figure 4 Schematic three-dimensional structure diagram of the lower positioning component of the present invention;

[0027] Figure 5 Schematic three-dimensional structure diagram of the movable plate of the present invention;

[0028] Figure 6 Top view cross-sectional view of the movable plate of the present invention;

[0029] Figure 7 Schematic three-dimensional structure diagram of the convex part of the present invention;

[0030] Figure 8 Schematic three-dimensional structure diagram of the positioning strip of the present invention;

[0031] Figure 9 Schematic three-dimensional structure diagram of the positioning block of the present invention;

[0032] Figure 10 Schematic three-dimensional structure diagram of the third inclined plane of the present invention;

[0033] Figure 11 Schematic three-dimensional structure diagram of the fourth inclined plane of the present invention.

[0034] In the figure: 1, driving trolley; 2, electric hoist; 3, fixed track; 4, movable track; 5, lifting drive member; 6, connecting mechanism; 7, upper positioning component; 8, positioning strip; 9, first inclined plane; 10, positioning block; 11, positioning groove; 12, second inclined plane; 13, lower positioning component; 14, fixed block; 15, rotating shaft; 16, movable plate; 17, notch; 18, convex part; 19, groove; 20, limit pin; 21, columnar block; 22, annular groove; 23, ring; 24, tension spring; 25, infrared sensor; 26, limit block; 27, third inclined plane; 28, fourth inclined plane.

[0035] As shown in the figure, in order to clearly implement the structure of the embodiments of the present invention, specific structures and devices are marked in the figure, but this is only for schematic needs and is not intended to limit the present invention to this specific structure, device and environment. According to specific needs, those of ordinary skill in the art can adjust or modify these devices and environments, and the adjustments or modifications made are still included within the scope of the appended claims. Detailed implementation manners

[0036] The following will describe in detail a curve-running and turnable single-rail crane provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the accompanying drawings are only for more specifically describing the embodiments and are not intended to specifically limit the present invention.

[0037] It should be noted that in the specification, references to "one embodiment", "an embodiment", "exemplary embodiments", "some embodiments", etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment includes such specific features, structures, or characteristics. Additionally, when combining embodiments to describe specific features, structures, or characteristics, implementing such features, structures, or characteristics in combination with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the relevant art.

[0038] Generally, terms can be understood at least in part from their use in context. For example, at least in part depending on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or can be used to describe a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey a set of exclusive factors, but rather can alternatively, at least in part depending on the context, allow for the existence of other factors that may not be explicitly described.

[0039] As Figures 1-11 shown, an embodiment of the present invention provides a curve-running and turnable single-rail crane, including a track body, a driving trolley 1, and an electric hoist 2 fixed to the bottom of the driving trolley 1. The track body is used for guiding during the movement of the driving trolley 1. The track body includes a fixed track 3 and a movable track 4. The fixed track 3 is fixed to the ceiling of the building, and the fixed track 3 is fixed to the ceiling of the building by embedded bolts. The end of the movable track 4 abuts against the end of the fixed track 3. A lifting driving member 5 is provided at the top of the movable track 4, and the lifting driving member 5 is fixed to the ceiling of the building. The lifting driving member 5 is fixed to the ceiling of the building by embedded bolts. A connecting mechanism 6 is provided at the connection between the movable track 4 and the fixed track 3. The lifting driving member 5 is used to drive the driving trolley 1, the electric hoist 2, and the movable track 4 to move up and down.

[0040] As Figure 2 and Figure 4As shown in the figure, in this embodiment, the connecting mechanism 6 includes an upper positioning component 7 arranged at the top of the movable track 4 and a lower positioning component 13 arranged at the bottom of the movable track 4. The upper positioning component 7 is used for positioning the top positions of the movable track 4 and the fixed track 3, and the lower positioning component 13 is used for positioning the bottom positions of the movable track 4 and the fixed track 3. The upper positioning component 7 and the lower positioning component 13 respectively perform precise positioning on the top and bottom of the movable track 4 and the fixed track 3, realizing the stable and tight connection between the movable track 4 and the fixed track 3.

[0041] As Figure 2 , Figure 8 and Figure 9 shown in the figure, in this embodiment, the upper positioning component 7 includes several positioning bars 8 fixed to the top of the movable track 4. A positioning block 10 is fixed to the top of the fixed track 3. The bottom of the positioning block 10 is in contact with the top of the movable track 4, and a positioning groove 11 is formed on the side wall of the positioning block 10. The inner wall of the positioning groove 11 is in contact with the side wall of the positioning bar 8. The lifting drive member 5 is a winch. The end of the steel wire rope of the lifting drive member 5 is fixedly connected to the top of the positioning bar 8. The positioning bar 8 is in close cooperation with the positioning groove 11 of the positioning block 10. When the movable track 4 is in contact with the fixed track 3, the positioning bar 8 is in close contact with the inner wall of the positioning groove 11, realizing the positioning of the top of the movable track 4 and the fixed track 3. As the lifting drive member 5, the winch can stably drive the movable track 4, the driving trolley 1, and the electric hoist 2 to rise and fall through the steel wire rope fixedly connected to the top of the positioning bar 8, ensuring the smooth movement of the equipment during the maintenance process. At the same time, the winch also has an electromagnetic brake. When it stops running, the winch is in a braking state. At this time, the steel wire rope also plays a positioning role for the movable track 4. When the winch runs, the braking state is automatically released, so as not to affect the lifting of the movable track 4.

[0042] As Figure 8 and Figure 9 shown in the figure, in this embodiment, a first inclined surface 9 is arranged on the side wall of the positioning bar 8, and a second inclined surface 12 is arranged on the inner wall of the positioning groove 11. The first inclined surface 9 is in contact with the second inclined surface 12. By arranging the first inclined surface 9 and the second inclined surface 12 in contact with each other, when the movable track 4 rises and docks with the fixed track 3, it plays a role in auxiliary positioning and guiding, enabling the positioning bar 8 to be more smoothly inserted into the positioning groove 11. At the same time, the mutual contact between the first inclined surface 9 and the second inclined surface 12 enhances the positioning stability between the positioning bar 8 and the positioning block 10, ensuring the tight connection between the top of the movable track 4 and the fixed track 3 and preventing misalignment from affecting the normal operation of the driving trolley 1.

[0043] As Figure 2As shown in the figure, in this embodiment, a reinforcing rib is fixed to the top of the positioning block 10, and the reinforcing rib is fixed to the top of the fixed track 3. The reinforcing rib enhances the connection strength between the positioning block 10 and the fixed track 3, improves the structural stability of the positioning block 10, and enables it to remain stable when bearing the external forces such as the force during the up-and-down movement of the movable track 4 and the vibration generated when driving the trolley 1, ensuring the accuracy and reliability of positioning.

[0044] As Figures 4-7 shown in the figure, in this embodiment, the lower positioning assembly 13 includes a plurality of rotating shafts 15 arranged at the bottom of the movable track 4. A fixing block 14 is fixedly sleeved on the circumferential surface of the rotating shaft 15, and the fixing block 14 is fixed to the bottom of the movable track 4. A movable plate 16 is rotatably connected to the circumferential surface of the rotating shaft 15. One side of the movable plate 16 close to the fixing block 14 is rotatably connected to the side surface of the fixing block 14. The movable plate 16 is attached to the bottoms of the movable track 4 and the fixed track 3, and a long slot is opened at the position corresponding to the fixed track 3 at the top of the movable plate 16. A screw rod is fixed to the bottom of the fixed track 3. The screw rod is attached to the inner wall of the long slot, and a nut is threadedly connected to the screw rod. The nut presses on the bottom of the movable plate 16. Through the threaded connection between the nut and the screw rod, the movable plate 16 is fixed to the bottoms of the movable track 4 and the fixed track 3, realizing the positioning and connection of their bottoms. When it is necessary to disassemble the movable track 4, just unscrew the nut to release the connection, which is easy to operate. During installation, tightening the nut can firmly fix the movable track 4, ensuring the stability of the connection between the bottoms of the movable track 4 and the fixed track 3, and providing guarantee for the smooth operation of the driving trolley 1.

[0045] As Figures 4-7As shown in the figure, in this embodiment, a notch 17 is provided on the side surface of the movable plate 16. The notch 17 is located below the movable track 4, and a convex portion 18 is provided on the inner wall of the notch 17. Grooves 19 are provided on opposite sides of the convex portion 18. A through groove is provided inside the rotating shaft 15, and a limit pin 20 is slidably connected to the inner wall of the through groove. One end of the limit pin 20 is flush with the end of the rotating shaft 15, and a columnar block 21 is fixed to the other end of the limit pin 20. The columnar block 21 fits against the inner wall of the groove 19. An annular groove 22 is provided on the inner wall of the through groove, and a ring 23 is sleeved on the circumferential surface of the limit pin 20. A tension spring 24 is fixed to the side of the ring 23 close to the columnar block 21. One end of the tension spring 24 close to the columnar block 21 is fixedly connected to the side of the inner wall of the annular groove 22 close to the columnar block 21, and the limit pin 20 is located inside the tension spring 24. A limit block 26 is fixed to the side surface of the side plate of the driving trolley 1, and the position of the limit block 26 corresponds to the position of the limit pin 20. When disassembling the movable track 4, the nut is unscrewed from the screw rod, and the movable plate 16 rotates downward. During the downward rotation of the movable plate 16, the inner wall of the groove 19 on the convex portion 18 squeezes the columnar block 21, causing the columnar block 21 to drive the limit pin 20 to extend out of the rotating shaft 15, realizing the limit during the lifting and lowering of the driving trolley 1 on the movable track 4. During the lifting and lowering of the movable track 4, when the nut is unscrewed and the movable plate 16 rotates downward, through the cooperation of the convex portion 18 and the columnar block 21, the limit pin 20 extends out and cooperates with the limit block 26, effectively restricting the displacement of the driving trolley 1 during the lifting and lowering of the movable track 4, preventing the driving trolley 1 and the electric hoist 2 from slipping off the movable track 4, and ensuring the safety during the maintenance process. When the movable plate 16 rotates back to the horizontal position for installation, the tension spring 24 can retract the limit pin 20, and the retraction of the limit pin 20 will not affect the normal driving of the driving trolley 1.

[0046] As Figure 7 shown, in this embodiment, the inner wall of the groove 19 is a curved surface, and the shape of the columnar block 21 is adapted to the shape of the inner wall of the groove 19. The adapted curved surface shape makes the movement of the columnar block 21 in the groove 19 smoother. When the movable plate 16 rotates, it can more effectively squeeze the columnar block 21, ensuring that the limit pin 20 extends smoothly.

[0047] As Figure 6As shown in the figure, in this embodiment, an infrared sensor 25 is embedded in the inner wall of the annular groove 22, and an audible and visual alarm light (not shown in the figure) is installed at the top of the movable track 4. The audible and visual alarm light is electrically connected to the infrared sensor 25. When the movable track 4 is fixed, the vibration generated by the driving trolley 1 moving on the movable track 4 may cause the nut to loosen. Once the nut loosens, the movable plate 16 will rotate downward, driving the limit pin 20 to move through the cooperation of the convex portion 18 and the columnar block 21. The limit pin 20 drives the ring 23 to move. At this time, the infrared sensor 25 senses the displacement change of the ring 23 and sends a signal to the information processing unit. The information processing unit controls the audible and visual alarm to alarm through the control unit, timely reminding the personnel that there is an abnormality at the connection between the movable track 4 and the fixed track 3, ensuring the safe driving of the driving trolley 1, and avoiding safety accidents caused by loose track connections.

[0048] As Figure 10 and Figure 11 shown in the figure, in this embodiment, a bevel three 27 is provided at the end of the movable track 4, and a bevel four 28 is provided at the end of the fixed track 3. The bevel three 27 is in contact with the bevel four 28. After the movable track 4 and the fixed track 3 are connected, the contact between the bevel three 27 and the bevel four 28 is used to achieve the tight connection and accurate positioning of the joint between the movable track 4 and the fixed track 3, effectively preventing misalignment between the two, ensuring that the driving trolley 1 can pass through the track connection smoothly and stably, avoiding the impact on the normal operation of the driving trolley 1 caused by track misalignment, and improving the stability and reliability of the single-track crane operation.

[0049] Working principle: The driving trolley 1 carries an electric hoist 2 fixed at the bottom and moves along the track body composed of the fixed track 3 and the movable track 4. The track body provides guidance for the movement of the driving trolley 1. Among them, the fixed track 3 is firmly installed on the ceiling of the building, and the end of the movable track 4 is in contact with the end of the fixed track 3. The two are connected and positioned through the connecting mechanism 6 to ensure that the driving trolley 1 can pass through the connection smoothly and realize normal lifting operations;

[0050] When the drive trolley 1 or the electric hoist 2 needs to be repaired, first move the drive trolley 1 to the movable track 4, and then use the lifting equipment to drive the maintenance personnel to rise to the movable track 4. First, separate the current collector at the drive trolley 1 from the sliding wire, and then use a wrench to unscrew the nut on the screw rod in the lower positioning component 13. After the nut is separated from the movable plate 16, the movable plate 16 flips downward under its own gravity. The movable plate 16 drives the curved surface on the inner wall of the groove 19 on the convex portion 18 to squeeze the columnar block 21, so that the columnar block 21 drives the limit pin 20 to move along the inner wall of the through groove in the rotating shaft 15 and extend out of the rotating shaft 15, and cooperate with the limit block 26 on the side plate of the drive trolley 1 to limit the displacement of the drive trolley 1 during the descent on the movable track 4 and prevent it from slipping. When the limit pin 20 extends out of the rotating shaft 15, it drives the ring 23 to move along the inner wall of the annular groove 22, and the ring 23 drives the tension spring 24 to be in a stretched state while moving. Start the lifting drive member 5, and the lifting drive member 5 pays out the steel wire rope, so that the positioning strip 8 moves downward and separates from the positioning block 10. At the same time, the positioning strip 8 drives the movable track 4 together with the drive trolley 1 and the electric hoist 2 to move smoothly downward to the ground. After the drive trolley 1 and the electric hoist 2 descend to the ground, the maintenance personnel can directly perform disassembly and repair operations on the drive trolley 1 and the electric hoist 2 on the ground. During the descent of the movable track 4, the lifting equipment synchronously drives the maintenance personnel to descend;

[0051] After the repair is completed, install the driving trolley 1 onto the movable track 4, and start the lifting driving member 5 again. The lifting driving member 5 winds the steel wire rope. When winding, the positioning strip 8 pulls the movable track 4, the driving trolley 1, and the electric hoist 2 to rise. The maintenance personnel rise synchronously with the lifting equipment. During the rising process of the movable track 4, the limit pin 20 still plays a limiting role to prevent the driving trolley 1 from slipping. When the movable track 4 rises to the docking position with the fixed track 3, the positioning strip 8 is inserted into the positioning groove 11 of the positioning block 10. The bottom of the positioning block 10 fits with the bottom of the movable track 4. The first inclined surface 9 on the positioning strip 8 fits with the second inclined surface 12 on the inner wall of the positioning groove 11 to achieve the positioning of the tops of the movable track 4 and the fixed track 3. Subsequently, rotate the movable plate 16 upward to the horizontal state so that the movable plate 16 fits with the bottoms of the movable track 4 and the fixed track 3, and then tighten the nut on the screw rod to fix the movable plate 16, thereby completing the positioning of the bottoms of the movable track 4 and the fixed track 3. When the movable plate 16 rotates upward, it drives the convex portion 18 to rotate. When the movable plate 16 rotates to the horizontal state, the position of the groove 19 on the convex portion 18 corresponds to the position of the columnar block 21. At this time, under the pulling force of the tension spring 24, the ring 23 drives the limit pin 20 to move in the reverse direction so that the columnar block 21 fits with the inner wall of the groove 19. After fitting, the end of the limit pin 20 away from the columnar block 21 is flush with the end of the rotating shaft 15. After fixing the movable track 4, the third inclined surface 27 at the end of the movable track 4 fits tightly with the fourth inclined surface 28 at the end of the fixed track 3 to ensure the tight connection and accurate positioning at the joint of the movable track 4 and the fixed track 3, preventing misalignment from affecting the normal operation of the driving trolley 1. After the installation of the movable track 4 is completed, attach the current collector to the sliding wire to supply power to the driving trolley 1 and the electric hoist 2;

[0052] During the operation of the driving trolley 1, after the movable track 4 is fixed, the vibration generated by the movement of the driving trolley 1 on the movable track 4 may cause the nut to loosen. Once the nut loosens, the movable plate 16 will rotate downward. Through the cooperation of the convex portion 18 and the columnar block 21, the limit pin 20 is driven to move, and the limit pin 20 drives the ring 23 to move. At this time, the infrared sensor 25 embedded in the inner wall of the annular groove 22 senses the displacement change of the ring 23 and triggers the sound and light alarm to alarm, timely reminding the personnel that there is an abnormality at the connection of the movable track 4 and the fixed track 3, thereby ensuring the driving safety of the driving trolley 1. When disassembling the movable track 4, the downward rotation of the movable plate 16 also drives the ring 23 to move, which will also trigger the alarm of the sound and light alarm. However, at this time, the maintenance personnel are located at the movable track 4 driven by the lifting equipment. When the sound and light alarm alarms, just turn off the sound and light alarm directly, and then turn on the sound and light alarm after the installation of the movable track 4 is completed.

[0053] The present invention encompasses any alternatives, modifications, equivalent methods, and solutions that are within the spirit and scope of the present invention. For the purpose of enabling the public to have a thorough understanding of the present invention, specific details have been described in detail in the above preferred embodiments of the present invention. However, those skilled in the art can fully understand the present invention even without the description of these details.

[0054] The above description is only a preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as within the protection scope of the present invention.

Claims

1. A curved monorail crane that can turn, comprising a rail body, a driving trolley (1), and an electric hoist (2) fixed to the bottom of the driving trolley (1), wherein the rail body is used for guiding the driving trolley (1) during movement, and characterized in that: The track body comprises a fixed track (3) and a movable track (4), the fixed track (3) being fixed on the ceiling of the building, the end of the movable track (4) being in contact with the end of the fixed track (3), the top of the movable track (4) being provided with a lifting drive member (5), the lifting drive member (5) being fixed on the ceiling of the building, a connecting mechanism (6) being provided at the connection between the movable track (4) and the fixed track (3), the lifting drive member (5) being used for driving the driving trolley (1), the electric hoist (2) and the movable track (4) to rise and fall, and the connecting mechanism (6) comprising an upper positioning component (7) arranged on the top of the movable track (4) and a lower positioning component (13) arranged on the bottom of the movable track (4); The lower positioning assembly (13) comprises a plurality of rotating shafts (15) arranged at the bottom of the movable track (4), a fixed block (14) being fixedly sleeved on the circumferential surface of the rotating shaft (15), the fixed block (14) being fixed to the bottom of the movable track (4), a movable plate (16) being rotatably connected to the circumferential surface of the rotating shaft (15), a side of the movable plate (16) close to the fixed block (14) being rotatably connected to the side surface of the fixed block (14), the movable plate (16) being fitted to the bottom of the movable track (4) and the fixed track (3), and a long groove being provided at the top of the movable plate (16) corresponding to the position of the fixed track (3), a screw being fixed to the bottom of the fixed track (3), the screw being fitted to the inner wall of the long groove, and a nut being threadedly connected to the screw, and the nut being pressed against the bottom of the movable plate (16); The movable plate (16) has a notch (17) on its side, the notch (17) being located below the movable track (4), and an inner wall of the notch (17) being provided with a protrusion (18), and grooves (19) being provided on opposite sides of the protrusion (18). A through groove is provided inside the rotating shaft (15), and a limit pin (20) is slidably connected to the inner wall of the through groove. One end of the limit pin (20) is flush with the end of the rotating shaft (15), and a columnar block (21) is fixed to the other end of the limit pin (20), and the columnar block (21) is fitted with the inner wall of the groove (19). An annular groove (22) is provided on the inner wall of the through groove, and a circular ring (23) is sleeved on the circumferential surface of the limit pin (20), and a tension spring (24) is fixed to the side of the circular ring (23) close to the columnar block (21). ), one end of the tension spring (24) close to the columnar block (21) is fixedly connected to the inner wall of the annular groove (22) close to the side of the columnar block (21), and the limit pin (20) is located inside the tension spring (24). The limit block (26) is fixed on the side of the side plate of the driving trolley (1), and the position of the limit block (26) corresponds to the position of the limit pin (20). When disassembling the movable track (4), the nut is unscrewed from the screw rod, and the movable plate (16) rotates downward. During the downward rotation of the movable plate (16), the inner wall of the groove (19) on the protrusion (18) is driven to squeeze the columnar block (21), so that the columnar block (21) drives the limit pin (20) to extend from the rotating shaft (15), thereby realizing the limit of the driving trolley (1) during the lifting process on the movable track (4).

2. The curved turning monorail crane according to claim 1 is characterized in that: The upper positioning component (7) is used to position the top position of the movable track (4) and the fixed track (3), and the lower positioning component (13) is used to position the bottom position of the movable track (4) and the fixed track (3).

3. The curved turning monorail crane according to claim 2 is characterized in that: The upper positioning assembly (7) comprises a plurality of positioning bars (8) fixed to the top of the movable track (4); a positioning block (10) is fixed to the top of the fixed track (3); the bottom of the positioning block (10) is in contact with the top of the movable track (4); a positioning groove (11) is provided on the side of the positioning block (10); the inner wall of the positioning groove (11) is in contact with the side of the positioning bar (8); the lifting drive member (5) is a winch; the end of the steel wire rope of the lifting drive member (5) is fixedly connected to the top of the positioning bar (8).

4. The curved turning monorail crane according to claim 3 is characterized in that: The side surface of the positioning strip (8) is provided with a first inclined surface (9), and the inner wall of the positioning groove (11) is provided with a second inclined surface (12), and the first inclined surface (9) is in contact with the second inclined surface (12).

5. The curved turning monorail crane according to claim 3 is characterized in that: A reinforcing rib is fixed on the top of the positioning block (10), and the reinforcing rib is fixed on the top of the fixed track (3).

6. The curved turning monorail crane according to claim 1 is characterized in that: The inner wall of the groove (19) is a curved surface, and the shape of the columnar block (21) matches the shape of the inner wall of the groove (19).

7. The curved turning monorail crane according to claim 1 is characterized in that: An infrared sensor (25) is embedded in the inner wall of the annular groove (22), and an audible and visual alarm light is installed on the top of the movable track (4), and the audible and visual alarm light is electrically connected to the infrared sensor (25).

8. The curved turning monorail crane according to claim 1 is characterized in that: The end of the movable track (4) is provided with a third inclined plane (27), and the end of the fixed track (3) is provided with a fourth inclined plane (28), and the third inclined plane (27) is in contact with the fourth inclined plane (28).

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