An automatic hoisting device for a tetrafluoroethylene anti-corrosion spraying production line

Abstract

The present invention discloses an automatic hoisting device for a tetrafluoroethylene anti-corrosion spraying production line, belonging to the field of hoisting. An automatic hoisting device for a tetrafluoroethylene anti-corrosion spraying production line includes a connecting cylinder, and a rotating rod rotatably mounted on the inner wall of the connecting cylinder through bearings, and further includes: a driving part arranged on the inner wall of the connecting cylinder, the driving part is used to drive the rotating rod to rotate; a fixed disk rotatably mounted on the inner wall of the connecting cylinder through bearings, the bottom of the fixed disk is fixedly connected with a rotating frame, an internal tooth groove is formed in the top of the fixed disk, and the end parts of the rotating rod respectively penetrate through the inner walls of the fixed disk, the rotating frame and the internal tooth groove; The present invention realizes locking the rotating rod in time and driving the clamping mechanism and the object to rotate as a whole, can effectively avoid factors such as the object shaking and slipping caused by the accidental rotation of the clamping mechanism, reduces the possible risk of injury to surrounding personnel during the operation process, and provides higher safety guarantee for the operation site.

Description

Technical Field

[0001] The present invention relates to the technical field of hoisting, and particularly relates to an automatic hoisting device for a tetrafluoroethylene anti-corrosion spraying production line. Background Art

[0002] Tetrafluoroethylene anti-corrosion spraying is an anti-corrosion protection technology, mainly used for coating the outer surface of an object with a layer of polytetrafluoroethylene (PTFE) or other fluorine-containing polymer materials to provide excellent anti-corrosion, wear resistance, high temperature resistance and other properties. Tetrafluoroethylene anti-corrosion spraying is widely used in the anti-corrosion protection of equipment such as pipelines, storage tanks, and reactors in industries such as petroleum, chemical industry, electric power, pharmaceuticals, and food. Since the weight of the object is often relatively heavy, a hoisting device is needed to lift the object for tetrafluoroethylene anti-corrosion spraying.

[0003] Currently, during the hoisting process of an object, after the hoisting device clamps both sides of the object, it directly hoists the hoisted object. Since the object needs to be sprayed on different surfaces during spraying, the object needs to be frequently rotated in different directions. Due to the frequent change of the orientation after the object is clamped, it is easy to rotate and cause factors such as the object shaking and slipping, reducing the risk of possible harm to surrounding personnel during the operation process and providing higher safety protection for the operation site. Summary of the Invention

[0004] The purpose of the present invention is to solve the above problems in the prior art, and to propose an automatic hoisting device for a tetrafluoroethylene anti-corrosion spraying production line.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An automatic hoisting device for a tetrafluoroethylene anti-corrosion spraying production line, including a connecting cylinder, and a rotating rod rotatably mounted on the inner wall of the connecting cylinder through a bearing, further including: a driving part arranged on the inner wall of the connecting cylinder, the driving part is used to drive the rotating rod to rotate; a fixed disk rotatably mounted on the inner wall of the connecting cylinder through a bearing, a rotating frame is fixedly connected to the bottom of the fixed disk, an internal tooth groove is opened at the top of the fixed disk, and the end parts of the rotating rod respectively penetrate into the inner walls of the fixed disk, the rotating frame and the internal tooth groove; a clamping mechanism arranged at the bottom of the rotating frame, the rotating rod is used to drive the clamping mechanism to automatically grip or release; an adsorption mechanism slidably arranged inside the rotating rod, the adsorption mechanism is used to fix the top of the object; a locking mechanism arranged on the surface of the rotating rod, the locking mechanism is adapted to the size of the internal tooth groove; when the locking mechanism is located above the internal tooth groove, it is used to freely rotate the rotating rod, and when the locking mechanism is located on the inner wall of the internal tooth groove, it is used to lock the rotation of the rotating rod.

[0007] Preferably, the locking mechanism includes a sliding sleeve that slides on the surface of the rotating rod. The upper and lower ends of the sliding sleeve are respectively fixedly connected with a limit gear ring and an engaging gear ring. The limit gear ring is adapted to the internal dimensions of the internal tooth groove. The surface of the sliding sleeve is threadedly connected with a connecting bolt. The surface of the rotating rod is provided with a sliding groove, and the connecting bolt slides inside the sliding groove.

[0008] Preferably, the driving part includes a servo motor arranged on the inner top wall of the connecting cylinder. The output end of the servo motor is fixedly connected with a driving shaft. The end of the driving shaft is fixedly connected with a main gear, and the main gear is used to drive the engaging gear ring to rotate.

[0009] Preferably, the clamping mechanism includes an L-shaped support frame fixed to the bottom of the rotating frame. A worm gear is rotatably connected inside the L-shaped support frame through a bearing. The surface of the worm gear is meshed with a worm. The worm is fixedly connected to the surface of the rotating rod. Clamping rods are fixedly connected to both sides of the worm gear. The top surface of the clamping rod slides on the surface of the fixed pin of the rotating frame.

[0010] Preferably, the adsorption mechanism includes a piston rod I that slides inside the rotating rod. One end of the piston rod I is connected with an adsorption disc. The top of the adsorption disc is communicated with the inner bottom wall of the rotating rod through a pipeline. A piston rod II slides on the inner top wall of the rotating rod. The top of the piston rod II is connected with a top plate through a bearing. The top plate is fixed directly above the servo motor.

[0011] Preferably, through holes and air release holes are respectively provided on the surface of the rotating rod. The through hole is directly above the air release hole. The air release hole is threadedly connected with the inside of the connecting bolt.

[0012] Preferably, a guiding groove is provided inside the connecting cylinder. The top plate slides inside the guiding groove. A return spring II is fixedly connected between the top plate and the guiding groove.

[0013] Preferably, a return spring I is sleeved on the surface of the piston rod I. One end of the return spring I is fixedly connected to the inner bottom wall of the rotating rod.

[0014] Preferably, a compression spring is fixedly connected to the inner bottom wall of the connecting cylinder. One end of the compression spring abuts against the upper surface of the engaging gear ring.

[0015] Preferably, a handle is fixedly connected to one side of the sliding sleeve. The handle is located inside the connecting cylinder.

[0016] Compared with the prior art, the present invention provides an automatic hoisting device for a tetrafluoroethylene anti-corrosion spraying production line, having the following beneficial effects:

[0017] 1. The automatic lifting device of the tetrafluoroethylene anti-corrosion spraying production line can lock the rotating rod after automatically clamping an object through the cooperation between the sliding sleeve, the limit gear ring, the connecting bolt and the sliding groove. With this setting, it can lock the rotating rod in time and drive the clamping mechanism and the object to rotate as a whole, effectively avoiding factors such as the object shaking and slipping caused by the accidental rotation of the clamping mechanism, reducing the risk of possible harm to the surrounding personnel during the operation, and providing higher safety protection for the operation site.

[0018] 2. The automatic lifting device of the tetrafluoroethylene anti-corrosion spraying production line can fix both sides of the lifted object through the cooperation between the L-shaped support frame, the worm gear, the worm and the clamping rod. With this setting, it can clamp according to different object sizes, avoiding the problem of insecure clamping caused by different object sizes, and further improving the safety of object lifting.

[0019] 3. The automatic lifting device of the tetrafluoroethylene anti-corrosion spraying production line can perform adsorption treatment on the object in advance before lifting through the cooperation between the first piston rod, the adsorption disc, the second piston rod and the ejector plate. With this setting, it can provide a clamping effect again, preventing the problem of easy slipping caused by single clamping, and further improving the stability of object lifting.

[0020] The parts not involved in this device are the same as or can be implemented by the prior art. The present invention can lock the rotating rod in time and drive the clamping mechanism and the object to rotate as a whole, effectively avoiding factors such as the object shaking and slipping caused by the accidental rotation of the clamping mechanism, reducing the risk of possible harm to the surrounding personnel during the operation, and providing higher safety protection for the operation site. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of an automatic lifting device for a tetrafluoroethylene anti-corrosion spraying production line proposed by the present invention;

[0022] Figure 2 It is an enlarged structural diagram of part A in an automatic lifting device for a tetrafluoroethylene anti-corrosion spraying production line proposed by the present invention; Figure 1 It is a schematic structural diagram of the locking mechanism of an automatic lifting device for a tetrafluoroethylene anti-corrosion spraying production line proposed by the present invention;

[0023] Figure 3 It is a schematic structural diagram of the right side of an automatic lifting device for a tetrafluoroethylene anti-corrosion spraying production line proposed by the present invention;

[0024] Figure 4 It is a schematic structural diagram of the right side of an automatic lifting device for a tetrafluoroethylene anti-corrosion spraying production line proposed by the present invention;

[0025] Figure 5Schematic cross-sectional structure diagram of an automatic lifting device for a tetrafluoro anti-corrosion spraying production line proposed by the present invention;

[0026] Figure 6 Schematic structure diagram of the adsorption mechanism of an automatic lifting device for a tetrafluoro anti-corrosion spraying production line proposed by the present invention Figure 1 ;

[0027] Figure 7 Schematic structure diagram of the adsorption mechanism of an automatic lifting device for a tetrafluoro anti-corrosion spraying production line proposed by the present invention Figure 2 ;

[0028] Figure 8 Schematic diagram of the enlarged structure at position B of an automatic lifting device for a tetrafluoro anti-corrosion spraying production line proposed by the present invention Figure 5 ;

[0029] In the figure: 1. Connecting cylinder; 11. Fixed disk; 12. Rotating frame; 13. Inner tooth groove; 2. Rotating rod; 3. Clamping mechanism; 31. L-shaped support frame; 32. Worm gear; 33. Worm; 34. Clamping rod; 4. Adsorption mechanism; 41. First piston rod; 411. First return spring; 42. Adsorption disk; 43. Second piston rod; 431. Through hole; 432. Air leakage hole; 44. Ejecting plate; 45. Guide groove; 46. Second return spring; 5. Locking mechanism; 51. Sliding sleeve; 52. Limiting gear ring; 53. Connecting bolt; 54. Sliding groove; 55. Meshing gear ring; 56. Compression spring; 57. Handle; 61. Servo motor; 62. Driving shaft; 63. Main gear. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0031] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0032] In one embodiment, refer to Figures 1 - 8, an automatic lifting device for a tetrafluoro anti-corrosion spraying production line, including a connecting cylinder 1 and a rotating rod 2 rotatably mounted on the inner wall of the connecting cylinder 1 through a bearing, and further comprising: a driving part arranged on the inner wall of the connecting cylinder 1 for driving the rotating rod 2 to rotate; a fixed disk 11 rotatably mounted on the inner wall of the connecting cylinder 1 through a bearing, a rotating frame 12 fixedly connected to the bottom of the fixed disk 11, an internal tooth groove 13 formed in the top of the fixed disk 11, and the ends of the rotating rod 2 respectively penetrate through the inner walls of the fixed disk 11, the rotating frame 12 and the internal tooth groove 13; a clamping mechanism 3 arranged at the bottom of the rotating frame 12, and the rotating rod 2 is used for driving the clamping mechanism 3 to automatically grip or release; an adsorption mechanism 4 slidably arranged inside the rotating rod 2 for fixing the top of an object; a locking mechanism 5 arranged on the surface of the rotating rod 2, and the locking mechanism 5 is adapted to the size of the internal tooth groove 13; when the locking mechanism 5 is located above the internal tooth groove 13, it is used for freely rotating the rotating rod 2, and when the locking mechanism 5 is located on the inner wall of the internal tooth groove 13, it is used for locking the rotation of the rotating rod 2.

[0033] With such a solution, the rotation of the rotating rod 2 inside the connecting cylinder 1 can drive the clamping mechanism 3 to work. When the clamping mechanism 3 works, it can clamp the surface of the object to be sprayed. At the same time, it can drive the adsorption mechanism 4 to work for secondary adsorption and fixation. And when the adsorption mechanism 4 works, it can drive the driving part to move upward. The driving part meshes upward on the surface of the locking mechanism 5, and the driving part drives the locking mechanism 5 and the rotating rod 2 to rotate. After the object is fixed, the locking mechanism 5 is moved downward to insert the locking mechanism 5 into the internal tooth groove 13 to complete the single locking work of the rotating rod 2. Thus, when the driving part drives again, it is necessary to rotate the ejector plate 44, the rotating frame 12, the rotating rod 2, the clamping mechanism 3 and the adsorption mechanism 4 synchronously to drive the object to rotate and spray in different directions.

[0034] During specific operation, first connect the connecting cylinder 1 with the lifting equipment, and then limit the rotating rod 2 through the connecting cylinder 1. When hoisting an object, drive the rotating rod 2 to rotate through the driving part. When the rotating rod 2 rotates, it can drive the clamping mechanism 3. Under the drive of the clamping mechanism 3, it can automatically clamp or loosen according to the sizes on both sides of the object. When the object is located below the rotating rod 2, the adsorption mechanism 4 can adsorb on the top of the object in advance to perform pre-tightening treatment on the object. At the same time, the adsorption mechanism 4 drives the driving part to move upward, so as to engage the driving part with the surface of the locking mechanism 5. When the locking mechanism 5 is located on the internal tooth groove 13, at this time, the locking mechanism 5 meshes with the driving part, so that the driving part drives the locking mechanism 5 and the rotating rod 2 to rotate. When the locking mechanism 5 is located inside the internal tooth groove 13, at this time, the locking mechanism 5 will snap into the internal tooth groove 13 to lock the rotating rod 2. Since the rotating rod 2 cannot rotate due to locking, it will not accidentally trigger the rotation of the clamping mechanism 3, thus ensuring the clamping force between the clamping mechanism 3 and the object.

[0035] In one embodiment, referring to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the locking mechanism 5 includes a sliding sleeve 51 sliding on the surface of the rotating rod 2. The upper and lower ends of the sliding sleeve 51 are respectively fixedly connected with a limit gear ring 52 and a meshing gear ring 55. The limit gear ring 52 is adapted to the internal size of the internal tooth groove 13. A connecting bolt 53 is threadedly connected to the surface of the sliding sleeve 51. A sliding groove 54 is formed on the surface of the rotating rod 2. The connecting bolt 53 slides inside the sliding groove 54. The driving part includes a servo motor 61 arranged on the inner top wall of the connecting cylinder 1. The output end of the servo motor 61 is fixedly connected with a driving shaft 62. The end of the driving shaft 62 is fixedly connected with a main gear 63. The main gear 63 is used to drive the meshing gear ring 55 to rotate.

[0036] Adopting such a scheme, the limit gear ring 52 at the end of the sliding sleeve 51 is inserted into the internal tooth groove 13, realizing timely locking of the rotating rod 2 and driving the clamping mechanism 3 and the object to rotate as a whole, effectively avoiding factors such as the shaking and slipping of the object caused by the accidental rotation of the clamping mechanism 3, reducing the risk of possible harm to the surrounding personnel during the operation process, and providing higher safety guarantee for the operation site.

[0037] During specific operation, the sliding sleeve 51 included in the locking mechanism 5 slides on the surface of the rotating rod 2. When the limiting gear ring 52 at the end of the sliding sleeve 51 is located above the internal tooth groove 13 and the connecting bolt 53 is clamped directly above the sliding groove 54, at this time, the limiting gear ring 52 is located directly above the internal tooth groove 13, and the locking of the rotating rod 2 will be released. When the driving part moves upward, when the servo motor 61 is pushed upward by the clamping mechanism 3, the servo motor 61 will drive the drive shaft 62 and the main gear 63 to move up a certain height in sequence. As a result, the main gear 63 will mesh with the surface of the meshing gear ring 55 at the highest position, thereby driving the meshing gear ring 55 at the top of the sliding sleeve 51 to rotate. The rotating rod 2 is driven to rotate synchronously through the meshing gear ring 55. When the limiting gear ring 52 is located inside the internal tooth groove 13, at this time, the connecting bolt 53 will be clamped at the bottom of the sliding groove 54, thereby locking between the rotating rod 2 and the fixed disk 11, and thus forming an integral body of the rotating rod 2, the fixed disk 11, the rotating frame 12, the clamping mechanism 3 and the adsorption mechanism 4. When the driving part is reset, at this time, the servo motor 61 will drive the drive shaft 62 and the main gear 63 to return to the initial position again. At this time, the main gear 63 will mesh with the meshing gear ring 55 at the lowest position. The drive shaft 62 is driven to rotate by the servo motor 61, and the drive shaft 62 drives the main gear 63 to rotate. Since the main gear 63 meshes with the surface of the meshing gear ring 55 at the lowest position, the whole will be driven to work simultaneously, so that the spraying work can be carried out on different surfaces of the clamped object frequently.

[0038] Supplementary description: The number of teeth of the limiting gear ring 52 is the same as that of the meshing gear ring 55. Therefore, after the meshing gear ring 55 drives the limiting gear ring 52 to rotate different gear rings, it can still ensure that the connecting bolt 53 can be accurately inserted into the internal tooth groove 13 for locking work.

[0039] In one embodiment, referring to Figure 1 and Figure 3 , the clamping mechanism 3 includes an L-shaped support frame 31 fixed to the bottom of the rotating frame 12. A worm gear 32 is rotatably connected inside the L-shaped support frame 31 through a bearing. A worm 33 is meshed and connected to the surface of the worm gear 32. The worm 33 is fixedly connected to the surface of the rotating rod 2. Clamping rods 34 are fixedly connected to both sides of the worm gear 32. The top surface of the clamping rods 34 slides on the fixed pin surface of the rotating frame 12.

[0040] Adopting such a scheme, the worm 33 drives the worm gear 32 to rotate, and the worm gear 32 drives the clamping rods 34, which realizes clamping according to different object sizes, avoids the problem of insecure clamping caused by differences in object sizes, and further improves the safety of object hoisting.

[0041] During specific operation, it is fixed to the bottom of the rotating frame 12 through the L-shaped support frame 31, and then the L-shaped support frame 31 is used to support the worm gear 32. When the rotating rod 2 rotates, it synchronously drives the worm 33 to rotate. Under the rotation of the worm 33, the meshed worm gear 32 on its surface is driven to rotate. Under the rotation of the worm gear 32, the clamping rods 34 are driven to approach or move away from each other. When the two clamping rods 34 approach each other, the two sides of the object surface can be clamped and fixed. When the two clamping rods 34 move away from each other, the fixation on the two sides of the object surface can be released. When the top of the clamping rod 34 slides on the outer surface of the fixed pin of the rotating frame 12, the top of the clamping rod 34 can be guided and limited, so as to ensure the stability of the clamping rod 34 during rotation.

[0042] Supplementary description, a rubber pad is provided at the end of the clamping rod 34, which makes the clamping of the two sides of the object more firm and at the same time avoids the wear problem easily caused by metal extrusion.

[0043] In one embodiment, referring to Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 , the adsorption mechanism 4 includes a piston rod one 41 sliding inside the rotating rod 2. A suction cup 42 is connected to the end of the piston rod one 41. The top of the suction cup 42 is connected to the inner bottom wall of the rotating rod 2 through a pipeline. A piston rod two 43 is slidably connected to the inner top wall of the rotating rod 2. The top of the piston rod two 43 is connected to a top plate 44 through a bearing. The top plate 44 is fixed directly above the servo motor 61. Through holes 431 and air release holes 432 are respectively formed on the surface of the rotating rod 2. The through hole 431 is located directly above the air release hole 432. The air release hole 432 is internally threaded with the connecting bolt 53. A guide groove 45 is formed inside the connecting cylinder 1. The top plate 44 slides inside the guide groove 45. A second return spring 46 is fixedly connected between the top plate 44 and the guide groove 45. A first return spring 411 is sleeved on the surface of the piston rod one 41. The end of the first return spring 411 is fixedly connected to the inner bottom wall of the rotating rod 2.

[0044] Adopting such a scheme, the suction cup 42 at the bottom of the piston rod one 41 adsorbs directly above the object, so that the object is adsorbed in advance before being lifted. Through this setting method, the clamping effect can be provided again, preventing the problem that the object is likely to slip due to single clamping, and further improving the stability of object lifting.

[0045] During specific operation, the first piston rod 41 slides inside the rotating rod 2. Under its own weight and the pulling force of the first return spring 411, the suction disc 42 at the end of the first piston rod 41 can be automatically moved downward, so that the suction disc 42 is located directly below the rotating rod 2. When the object is located directly below the rotating rod 2, the object will contact the bottom of the suction disc 42 at this time. As the rotating rod 2 drives the clamping rod 34 to move downward as a whole, the clamping rod 34 is located on both sides of the object. Since the first piston rod 41 slides inside the rotating rod 2, when the rotating rod 2 moves downward, the first piston rod 41 is located above the object, so the first piston rod 41 will not displace. When the rotating rod 2 moves downward, the cavity existing between the first piston rod 41 and the sleeved first return spring 411 will gradually become larger. When the cavity becomes larger, an adsorption force can be generated. The adsorption force will extract the gas between the suction disc 42 and the object through the pipeline. Therefore, the suction disc 42 will be vacuum-adsorbed on the surface of the object. At the same time, when the first piston rod 41 moves upward inside the rotating rod 2, the gas on the inner wall of the rotating rod 2 will be squeezed. The squeezed gas will push the second piston rod 43 and the ejector plate 44 to move upward. During the movement of the ejector plate 44, the servo motor 61 will be driven to move, so as to move the driving part as a whole by a certain distance. At this time, the main gear 63 will be engaged with the highest position of the meshing gear ring 55;

[0046] With the opening of the through hole 431, when the bottom of the second piston rod 43 exceeds the position of the through hole 431, the gas in the part inside the rotating rod 2 will leak through the through hole 431, so as to ensure that the second piston rod 43 is only located below the through hole 431. At this time, it can be ensured that the driving part fixed by the ejector plate 44 is at a specific height, so as to ensure that the driving part can drive the meshing gear ring 55 to rotate normally. When the clamping of the object is completed and the sliding sleeve 51 needs to be moved downward, the operator rotates the connecting bolt 53, and the connecting bolt 53 can be disengaged from the air vent hole 432. At this time, the air vent hole 432 will relieve the pressure of the gas inside the rotating rod 2. When there is no high-pressure gas in the second piston rod 43, it will automatically fall. At the same time, with the opening of the guiding groove 45, it is used to guide and limit the ejector plate 44, and with the arrangement of the second return spring 46, a thrust can be applied to the top of the ejector plate 44 to automatically reset the ejector plate 44 when there is no thrust;

[0047] When the suction disc 42 needs to release the adsorption force on the top of the object, when the object is on the ground and the clamping mechanism 3 is away from both sides of the object, the connecting cylinder 1 drives the rotating rod 2 to move upward. When the rotating rod 2 moves upward, the piston rod 41 is synchronously driven to move. Since the suction disc 42 at the end of the piston rod 41 is adsorbed on the upper surface of the object, the air is exhausted through the one-way valve on the surface of the pipeline at this time, so as to discharge the gas between the piston rod 41 sleeved with the return spring 411 and the rotating rod 2, so that the gas returns to between the suction disc 42 and the object. At this time, there is no vacuum adsorption between the suction disc 42 and the object, so as to release the connection between the suction disc 42 and the object;

[0048] During the downward reset process of the piston rod 41, the gas between the piston rod 41 and the piston rod 43 will be extracted. Since the piston rod 43 released some gas when moving upward, it will not reset the piston rod 43 to its initial position. At this time, under the opening of the air leakage hole 432, the gas between the piston rod 41 and the piston rod 43 is compensated. Therefore, the downward movement of the piston rod 41 will not drive the piston rod 43 to move downward synchronously, and the piston rod 43 moves downward under its own weight.

[0049] In one embodiment, referring to Figures 1 - 8 , a compression spring 56 is fixedly connected to the inner bottom wall of the connecting cylinder 1. The end of the compression spring 56 is attached to the upper surface of the meshing gear ring 55. A handle 57 is fixedly connected to one side of the sliding sleeve 51, and the handle 57 is located inside the connecting cylinder 1.

[0050] Adopting such a scheme, under the setting of the compression spring 56, it is used to compress or reset the meshing gear ring 55.

[0051] During specific work, under the setting of the compression spring 56 on the inner bottom wall of the upper part of the connecting cylinder 1, through the spring force of the compression spring 56, the top of the meshing gear ring 55 can be pressured, so as to automatically reset the meshing gear ring 55 and ensure the stability of the position of the meshing gear ring 55. At the same time, under the setting of the handle 57 on the side wall of the sliding sleeve 51, it is convenient for the staff to manually extract the handle 57, so as to control the sliding sleeve 51 to slide up and down.

[0052] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. An automatic hoisting device for a tetrafluoroethylene anti-corrosion spraying production line, comprising a connecting cylinder (1) and a rotating rod (2) rotatably mounted on the inner wall of the connecting cylinder (1) through a bearing, characterized in that, Further included are: A driving part arranged on the inner wall of the connecting cylinder (1), and the driving part is used to drive the rotating rod (2) to rotate; A fixing plate (11) rotatably connected to the inner wall of the connecting cylinder (1) through a bearing. A rotating frame (12) is fixedly connected to the bottom of the fixing plate (11). An internal tooth groove (13) is formed in the top of the fixing plate (11). The end parts of the rotating rod (2) respectively penetrate through the inner walls of the fixing plate (11), the rotating frame (12) and the internal tooth groove (13); A clamping mechanism (3) arranged at the bottom of the rotating frame (12), and the rotating rod (2) is used to drive the clamping mechanism (3) to automatically grip or release; An adsorption mechanism (4) sliding inside the rotating rod (2), and the adsorption mechanism (4) is used to fix the top of an object; A locking mechanism (5) arranged on the surface of the rotating rod (2), and the locking mechanism (5) is adapted to the size of the internal tooth groove (13); When the locking mechanism (5) is located above the internal tooth groove (13), it is used to freely rotate the rotating rod (2), and when the locking mechanism (5) is located on the inner wall of the internal tooth groove (13), it is used to lock the rotation of the rotating rod (2); The locking mechanism (5) includes a sliding sleeve (51) sliding on the surface of the rotating rod (2). Limiting tooth rings (52) and meshing tooth rings (55) are respectively fixedly connected to the upper and lower ends of the sliding sleeve (51). The limiting tooth ring (52) is adapted to the internal size of the internal tooth groove (13). A connecting bolt (53) is threadedly connected to the surface of the sliding sleeve (51). A sliding groove (54) is formed in the surface of the rotating rod (2), and the connecting bolt (53) slides inside the sliding groove (54); The driving part includes a servo motor (61) arranged on the inner top wall of the connecting cylinder (1). A driving shaft (62) is fixedly connected to the output end of the servo motor (61). A main gear (63) is fixedly connected to the end of the driving shaft (62), and the main gear (63) is used to drive the meshing tooth ring (55) to rotate; The adsorption mechanism (4) includes a piston rod one (41) sliding inside the rotating rod (2). An adsorption disc (42) is connected to the end of the piston rod one (41). The top of the adsorption disc (42) is communicated with the inner bottom wall of the rotating rod (2) through a pipeline. A piston rod two (43) is slidably connected to the inner top wall of the rotating rod (2). A top plate (44) is connected to the top of the piston rod two (43) through a bearing, and the top plate (44) is fixed directly above the servo motor (61).

2. The automatic hoisting device for a tetrafluoroethylene anti-corrosion spraying production line according to claim 1, characterized in that, The clamping mechanism (3) includes an L-shaped support frame (31) fixed to the bottom of the rotating frame (12). A worm gear (32) is rotatably connected to the inside of the L-shaped support frame (31) through a bearing. A worm (33) is meshed with the surface of the worm gear (32). The worm (33) is fixedly connected to the surface of the rotating rod (2). Clamping rods (34) are fixedly connected to both sides of the worm gear (32), and the top surfaces of the clamping rods (34) slide on the fixed pins of the rotating frame (12).

3. The automatic hoisting device of a tetrafluoroethylene anti-corrosion spraying production line according to claim 1, characterized in that, The surface of the rotating rod (2) is respectively provided with a through hole (431) and an air vent hole (432). The through hole (431) is located directly above the air vent hole (432), and the air vent hole (432) is internally threadedly connected to the connecting bolt (53).

4. The automatic hoisting device of a tetrafluoroethylene anti-corrosion spraying production line according to claim 1, characterized in that, A guiding groove (45) is provided inside the connecting cylinder (1). The ejector plate (44) slides inside the guiding groove (45), and a second return spring (46) is fixedly connected between the ejector plate (44) and the guiding groove (45).

5. An automatic hoisting device for a tetrafluoroethylene anti-corrosion spraying production line according to claim 1, characterized in that, A first return spring (411) is sleeved on the surface of the first piston rod (41), and the end of the first return spring (411) is fixedly connected to the inner bottom wall of the rotating rod (2).

6. The automatic hoisting device of a tetrafluoroethylene anti-corrosion spraying production line according to claim 1, characterized in that, The inner bottom wall of the connecting cylinder (1) is fixedly connected with a compression spring (56), and the end of the compression spring (56) is in contact with the upper surface of the meshing gear ring (55).

7. An automatic hoisting device for a tetrafluoroethylene anti-corrosion spraying production line according to claim 1, characterized in that One side of the sliding sleeve (51) is fixedly connected with a handle (57), and the handle (57) is located inside the connecting cylinder (1).

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