Large-pipe-diameter stainless steel pipe fitting hoisting equipment

Abstract

The utility model relates to large-pipe-diameter stainless steel pipe fitting hoisting equipment, and aims to solve the problems of poor stability and low safety when large-pipe-diameter stainless steel pipe fittings are hoisted by the conventional hoisting method. The equipment comprises a fixing base, a fixing frame, a supporting plate, a lifting appliance and a clamping device. A fixing frame is arranged on the fixing seat, a supporting plate is integrally formed on the fixing frame, one end of the lifting appliance is movably clamped on the supporting plate, and the other end of the lifting appliance is connected with hoisting equipment. The clamping devices are symmetrically arranged at the two ends of the fixing seat, and each clamping device comprises a base, a gear mechanism, a motor, a rotating shaft, a bearing seat, a support and a clamping arm. A gear mechanism is arranged on the base and connected with a motor through a rotating shaft, and the motor drives the gear mechanism to rotate. The bearing seat accommodates the rotating shaft to ensure stable rotation of the rotating shaft. The support is of an arc-shaped structure and fixed to the base, and the clamping arms are contained in the support. The clamping arms are arc-shaped, and teeth are arranged on the outer side faces of the clamping arms and meshed with gears in the gear mechanisms, so that reliable clamping is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stainless steel pipe processing and manufacturing, in particular to a large-diameter stainless steel pipe fitting hoisting device. BACKGROUND

[0002] In the stainless steel pipe processing and manufacturing, the hoisting of large-diameter stainless steel pipe fittings has always been an important technical link. The traditional hoisting method usually uses steel wire rope, chain or ordinary sling for fixing and hoisting. However, these traditional methods have many shortcomings: first, the steel wire rope and chain are flexible hoisting devices, which are easy to sway or overturn the pipe fittings during use; second, the ordinary sling is easy to break when bearing a large weight, and the safety cannot be guaranteed. Therefore, there is an urgent need for a large-diameter stainless steel pipe fitting hoisting device that can effectively solve the above problems to improve the safety and stability of hoisting. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at providing a large-diameter stainless steel pipe fitting hoisting device to solve the problems of poor stability and low safety of the existing hoisting method when hoisting large-diameter stainless steel pipe fittings. In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: a large-diameter stainless steel pipe fitting hoisting device, comprising:

[0004] A fixing seat is provided with a fixing frame, and the fixing frame is integrally formed with a support plate, which is used to provide a stable clamping support point;

[0005] A lifting device is movably clamped at one end on the support plate and connected at the other end to a hoisting equipment for transmitting the hoisting force to the entire hoisting device;

[0006] A clamping device is symmetrically arranged at both ends of the fixing seat, each clamping device comprising a base, a gear mechanism, a motor, a shaft, a bearing seat, a bracket and a clamping arm. The base is arranged on the fixing seat and provided with the gear mechanism. The gear mechanism is connected to the motor through the shaft, and the motor is used to drive the gear mechanism to rotate. The bearing seat is arranged on the base to rotatably accommodate the shaft and ensure the stable rotation of the shaft. The bracket is in an arc shape and fixedly arranged on the base. The bracket has a space inside to accommodate the clamping arm for limiting and protecting the clamping arm. The clamping arm is in an arc shape and arranged inside the bracket. The outer side of the clamping arm is provided with teeth that engage with the gears in the gear mechanism, so that the rotation of the gears can drive the clamping arm to move correspondingly, thereby realizing reliable clamping of the large-diameter stainless steel pipe fitting.

[0007] Preferably, the gear mechanism comprises a first gear, a second gear, a third gear assembly and a fourth gear, the first gear and the fourth gear are arranged on the rotating shaft and rotate with the rotating shaft, the first gear is a bevel gear, and the fourth gear is a straight gear; the second gear is perpendicular to the rotating shaft in the axial direction and is engaged with the first gear; the third gear assembly comprises two bevel gears and two straight gears connected through shaft sleeves, the third gear assembly is sleeved on the rotating shaft and passes through the bearing seat, the bevel gear at one end of the third gear assembly is engaged with the second gear, and the straight gear at the other end of the third gear assembly is close to the fourth gear; the clamping arms are arranged in two and are engaged with the straight gears of the third gear assemblies and the fourth gear respectively, the gear mechanism forms a coaxial forward and reverse rotation structure, and the two clamping arms move towards or away from each other in the support to realize clamping or loosening of the pipe fitting.

[0008] Preferably, the lifting appliance comprises a lifting ring, a movable plate, a lifting arm, a lifting hook and a center frame, one end of the lifting ring is connected with a hoisting device, the other end is movably connected with the movable plate, two symmetrical sliding grooves are arranged on the movable plate, and a protrusion is arranged in the middle of the movable plate; a limiting plate is arranged in the middle of the center frame, the limiting plate is located on the two sides of the movable plate, and a slot for accommodating the protrusion is arranged in the middle of the limiting plate; the lifting arms are arranged on the two sides of the movable plate respectively, one end of each lifting arm is provided with a roller, the roller is movably connected in the sliding groove, the middle part of the lifting arm is hingedly connected with the end part of the center frame, the lifting hook is arranged at the end part of the lifting arm, and an arc-shaped groove is arranged on the lifting hook; when the lifting ring is lifted, the two lifting hooks are brought close to each other under the hinging action of the lifting arm, so that the clamping of the support plate is realized.

[0009] Preferably, the support plate has an arc-shaped side wall which is matched with the arc-shaped groove on the lifting hook.

[0010] Preferably, a plurality of limiting blocks are arranged in the support, the limiting blocks are arranged on the two sides of the clamping arm respectively, a space for accommodating the clamping arm is formed, and the movement stability and precision of the clamping arm are ensured.

[0011] Preferably, a rubber pad is arranged in the arc-shaped groove of the lifting hook.

[0012] Preferably, the support and the clamping arm are concentric in the arc shape.

[0013] Compared with the prior art, the application has the following beneficial effects:

[0014] The utility model discloses a fixed seat and fixed frame are set up, and the support plate is integrally formed on the fixed frame, provide stable clamping support point. This design effectively improves the overall stability of hoisting equipment, ensures that the large pipe diameter stainless steel pipe fitting can keep steady during hoisting, avoids the hoisting risk caused by shaking. Through the movable clamping design of the lifting appliance and the support plate, it is ensured that the hoisting force can be evenly transmitted to the whole hoisting equipment, and the hoisting failure caused by uneven stress is avoided. In addition, the symmetrical arrangement of the clamping device further enhances the safety of the hoisting equipment, making the hoisting process more reliable. Through the carefully designed clamping device, including base, gear mechanism, motor, shaft, bearing seat, support and clamping arm, reliable clamping of the large pipe diameter stainless steel pipe fitting can be realized. The gear mechanism is driven by the motor, and the teeth on the clamping arm are engaged with the gear, so that the clamping arm can move stably, thereby realizing firm clamping of the pipe fitting and avoiding the risk of slipping during hoisting. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic view of a large pipe diameter stainless steel pipe fitting hoisting equipment proposed in the embodiments of the present application.

[0016] Figure 2 It is a three-dimensional schematic view of the open state of the clamping device.

[0017] Figure 3 It is a three-dimensional schematic view of the clamping state of the clamping device.

[0018] Figure 4 It is a three-dimensional schematic view of the third gear assembly.

[0019] Figure 5 It is a three-dimensional schematic view of the lifting appliance.

[0020] In the drawing: 1, fixed seat; 2, fixed frame; 3, support plate; 4, lifting appliance; 5, clamping device; 6, base; 7, gear mechanism; 8, motor; 9, shaft; 10, bearing seat; 11, support; 12, clamping arm; 13, first gear; 14, second gear; 15, third gear assembly; 16, fourth gear; 17, lifting ring; 18, movable plate; 19, lifting arm; 20, lifting hook; 21, center frame; 22, sliding groove; 23, protrusion; 24, limiting plate; 25, roller; 26, limiting block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0022] It should be noted that, in the description of the present application, the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0023] In addition, it should be understood that, for the convenience of description, the sizes of various components shown in the drawings are not drawn in accordance with the actual proportional relationship, for example: the thickness or width of certain layers can be exaggerated relative to other layers.

[0024] It should be noted that similar reference numbers and letters represent similar items in the following drawings, and therefore, once an item is defined or described in one drawing, it will not need to be further specifically discussed and described in the description of subsequent drawings.

[0025] To solve the technical problems in the background art, as shown in the Figures 1-5 The present application provides a technical solution: a large-diameter stainless steel pipe fitting hoisting equipment, characterized by:

[0026] The fixed seat 1 is the base component of the entire lifting device, used to fix and support other components. The fixed seat 1 is rectangular or square in shape, with sufficient strength and rigidity to withstand various forces generated during lifting. The fixed seat 1 is provided with a fixed frame 2, which is connected with the fixed seat 1 by welding or bolts, ensuring the stability of the fixed frame 2. The fixed frame 2 is an important component on the fixed seat 1, used to support and fix the support plate 3. The fixed frame 2 is integrally formed with the support plate 3, which is plate-shaped with a certain thickness, with sufficient strength and rigidity. The surface of the support plate 3 is smooth, used to provide stable clamping support points. The lifting tool 4 is movably clamped at one end on the support plate 3, and the other end is connected with the hoisting equipment. The lifting tool 4 is clamped on the support plate 3 through its movable end, ensuring that the lifting force can be uniformly transmitted to the entire lifting device, avoiding damage to the equipment or pipe falling due to uneven force. The clamping device 5 is used to clamp large-diameter stainless steel pipe fittings. The clamping device 5 is symmetrically arranged at both ends of the fixed seat 1, and each clamping device 5 includes a base 6, a gear mechanism 7, a motor 8, a rotating shaft 9, a bearing seat 10, a bracket 11 and a clamping arm 12. The base 6 is arranged on the fixed seat 1, used to fix and support other components. The base 6 is rectangular or square in shape, with sufficient strength and rigidity. The gear mechanism 7 is arranged on the base 6, and the gear mechanism 7 is a gear set composed of multiple gears, used to transmit motion and power. The gear mechanism 7 is arranged on the base 6 and connected with the motor 8 through the rotating shaft 9. The motor 8 is connected with the gear mechanism 7 through the rotating shaft 9, used to drive the gear mechanism 7 to rotate. The rotating shaft 9 is arranged on the base 6, with one end connected with the motor 8 and the other end connected with the gear mechanism 7. The rotating shaft 9 is made of high-strength alloy steel, with good toughness and tensile strength. The bearing seat 10 is arranged on the base 6, used to rotatably accommodate the rotating shaft 9, ensuring the stable rotation of the rotating shaft 9. The bracket 11 is arc-shaped and fixedly arranged on the base 6. The bracket 11 has a space inside to accommodate the clamping arm 12, limiting and protecting the clamping arm 12. The bracket 11 is made of high-strength alloy steel, with good toughness and tensile strength. The clamping arm 12 is arc-shaped and arranged inside the bracket 11. The outer side of the clamping arm 12 is provided with teeth that mesh with the gears in the gear mechanism 7, so that when the gears rotate, the clamping arm 12 can be moved accordingly, thereby realizing reliable clamping of large-diameter stainless steel pipe fittings.

[0027] In actual operation, when large-diameter stainless steel pipe fittings need to be lifted, the pipe fittings are first placed between the clamping arms 12 of the clamping device 5. Start the motor 8, the motor 8 drives the gear mechanism 7 to rotate, the gear mechanism 7 moves the clamping arm 12 through the rotating shaft 9, so that the clamping arm 12 gradually clamps the pipe fittings. At the same time that the clamping arm 12 clamps the pipe fittings, one end of the lifting tool 4 is clamped on the support plate 3, and the other end is connected with the hoisting equipment. Through the lifting of the hoisting equipment, the lifting tool 4 transmits the lifting force to the entire lifting device, thereby realizing the lifting of large-diameter stainless steel pipe fittings.

[0028] It should be noted that, as shown in Figure 3 The gear mechanism 7 comprises a first gear 13, a second gear 14, a third gear assembly 15 and a fourth gear 16. The first gear 13 is arranged on the rotating shaft 9 and rotates with the rotating shaft 9. The first gear 13 is a bevel gear, which mainly functions to transmit the rotating motion of the motor 8 to the second gear 14. The second gear 14 is axially perpendicular to the rotating shaft 9 and is engaged with the first gear 13. The second gear 14 mainly functions to transmit the rotating motion of the first gear 13 to the third gear assembly 15. The third gear assembly 15 is composed of two bevel gears and a spur gear connected by a shaft sleeve. The third gear assembly 15 is sleeved on the rotating shaft 9 and passes through the bearing seat 10, but does not rotate with the rotating shaft 9. The bevel gear at one end of the third gear assembly 15 is engaged with the second gear 14, and the spur gear at the other end is coaxial with the fourth gear 16. The third gear assembly 15 mainly functions to transmit the rotating motion of the second gear 14 to a clamping arm 12 engaged therewith and drive the clamping arm 12 to move correspondingly. The fourth gear 16 is arranged on the rotating shaft 9 and rotates with the rotating shaft 9. The fourth gear 16 is a spur gear, which mainly functions to transmit the power of the rotating shaft 9 to another clamping arm 12 engaged therewith and drive the clamping arm 12 to move correspondingly. Thus, two clamping arms 12 are required to be arranged, which are engaged with the spur gear of the third gear assembly 15 and the fourth gear 16, respectively. When the gear mechanism 7 forms a coaxial forward and reverse rotation structure, the two clamping arms 12 move towards or away from each other in the support 11, realizing clamping or loosening of the pipe. Specifically, when the motor 8 rotates forward, the gear mechanism 7 drives the clamping arms 12 to move towards each other, realizing clamping of the pipe; when the motor 8 reverses, the gear mechanism 7 drives the clamping arms 12 to move away from each other, realizing loosening of the pipe.

[0029] Notably, the lifting tool 4 includes a lifting ring 17, a movable plate 18, a lifting arm 19, a lifting hook 20, and a center frame 21. One end of the lifting ring 17 is connected with the hoisting equipment, and the other end is movably connected with the movable plate 18. The main function of the lifting ring 17 is to connect the lifting tool 4 with the hoisting equipment and transmit the lifting force. The movable plate 18 is symmetrically provided with two sliding grooves 22, and a protrusion 23 is arranged in the middle. The main function of the movable plate 18 is to cooperate with the center frame 21 through the sliding grooves 22 and the protrusion 23 to realize the movement of the lifting arm 19. The center frame 21 is provided with a limiting plate 24 in the middle, the limiting plate 24 is located on both sides of the movable plate 18, and a slot is arranged in the middle of the limiting plate 24 to accommodate the movement of the protrusion 23. The main function of the center frame 21 is to cooperate with the movable plate 18 through the limiting plate 24 and the slot to limit the movement range of the movable plate 18. The lifting arm 19 is arranged on both sides of the movable plate 18, one end of the lifting arm 19 is provided with a roller 25, and the roller 25 is movably connected in the sliding groove 22. The middle of the lifting arm 19 is hingedly connected with the end of the center frame 21. The main function of the lifting arm 19 is to drive the lifting hook 20 to move correspondingly through the movement of the roller 25 in the sliding groove 22. The lifting hook 20 is arranged at the end of the lifting arm 19, and an arc-shaped groove is arranged on the lifting hook 20. The main function of the lifting hook 20 is to cooperate with the supporting plate 3 through the arc-shaped groove to realize the clamping of the supporting plate 3. When the lifting ring 17 is lifted, the lifting ring 17 drives the movable plate 18 to move upward through the movable connection with the movable plate 18. The protrusion 23 of the movable plate 18 slides in the slot of the limiting plate 24, which limits the movement direction of the movable plate 18. At the same time, the roller 25 of the lifting arm 19 rolls in the sliding groove 22, which drives the lifting arm 19 to rotate around the hinge point with the center frame 21. The rotation of the lifting arm 19 drives the lifting hook 20 to move inward, and the arc-shaped groove on the lifting hook 20 cooperates with the supporting plate 3 to realize the clamping of the supporting plate 3.

[0030] It is worth noting that the supporting plate 3 has an arc-shaped side wall which is matched with the arc-shaped groove on the lifting hook 20. The main function of the supporting plate 3 is to provide a stable clamping support point to ensure the stability and safety of the lifting tool 4 during lifting. The arc-shaped side wall design of the supporting plate 3 enables it to closely cooperate with the arc-shaped groove on the lifting hook 20. This design not only increases the contact area and improves the stability of clamping, but also effectively disperses the lifting force and reduces the wear of the supporting plate 3 and the lifting hook 20. As the clamping support point of the lifting tool 4, the supporting plate 3 ensures the stability and safety of the lifting tool 4 during lifting. When the lifting ring 17 is lifted, the lifting arm 19 drives the lifting hook 20 to move inward under the action of the hinge, and the arc-shaped groove on the lifting hook 20 closely cooperates with the arc-shaped side wall of the supporting plate 3 to realize reliable clamping of the supporting plate 3.

[0031] It should be noted that the support 11 is internally provided with a plurality of limiting blocks 26, which are respectively arranged on both sides of the clamping arm 12 to form a space for accommodating the clamping arm 12. The arrangement of the limiting blocks 26 ensures the stability and accuracy of the movement of the clamping arm 12 in the support 11. The presence of the limiting blocks 26 allows the clamping arm 12 to be supported and limited on both sides during movement, reducing the shaking caused by external forces or its own weight, and improving the movement stability of the clamping arm 12. The limiting blocks 26 also play a certain protective role for the clamping arm 12, preventing the clamping arm 12 from colliding or rubbing with other components during movement, and prolonging the service life of the clamping arm 12.

[0032] It is worth noting that the hook 20 is arranged at the end of the lifting arm 19, and an arc-shaped groove is arranged on the hook 20. A rubber pad is arranged in the arc-shaped groove. The arrangement of the rubber pad can increase the friction between the hook 20 and the support plate 3, prevent the support plate 3 from slipping off during lifting, and improve the stability of lifting. The rubber pad can also play a certain buffering role, reducing the hard contact between the hook 20 and the support plate 3, protecting the surface of the support plate 3, and preventing scratches or damage to the support plate 3 during lifting.

[0033] It should be noted that the support 11 and the clamping arm 12 are both designed in an arc shape, and the arcs of the two are concentric. This means that the movement trajectory of the clamping arm 12 inside the support 11 completely coincides with the arc-shaped inner wall of the support 11, ensuring that the clamping arm 12 always maintains a stable and accurate path during movement. The arc concentric design makes the force on the clamping arm 12 more uniform during movement, reducing wear and damage caused by uneven force. This design prolongs the service life of the clamping arm 12 and the support 11, and reduces maintenance costs.

[0034] Although embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A large pipe diameter stainless steel pipe fitting hoisting apparatus characterized by, The utility model relates to a kind of stainless steel pipe lifting device, including: Fixed seat (1), fixed frame (2) is provided on the fixed seat (1), support plate (3) is integrally formed on the fixed frame (2), and the support plate (3) is used to provide stable clamping support point; Lifting appliance (4), one end of the lifting appliance (4) is movably clamped on the support plate (3), the other end is connected with hoisting equipment, for transmitting hoisting force to whole hoisting equipment; Clamping device (5), the clamping device (5) is symmetrically arranged at both ends of the fixed seat (1), each clamping device (5) includes base (6), gear mechanism (7), motor (8), rotating shaft (9), bearing seat (10), support (11) and clamping arm (12), the base (6) is arranged on the fixed seat (1), and gear mechanism (7) is arranged on it, gear mechanism (7) is connected with motor (8) by rotating shaft (9), and motor (8) is used to drive gear mechanism (7) rotation;The bearing seat (10) is arranged on the base (6), for rotatably accommodating rotating shaft (9), to ensure the stable rotation of rotating shaft (9);The support (11) is arc structure, and it is fixedly arranged on the base (6), and the support (11) has the space of accommodating clamping arm (12) inside, to limit and protect clamping arm (12);The clamping arm (12) is arc, arranged in the support (11), and its outside is provided with the tooth of meshing with the gear in gear mechanism (7), so that the gear can drive clamping arm (12) to move correspondingly when the gear rotates, to reliably clamp large-diameter stainless steel pipe fittings.

2. The large diameter stainless steel pipe section hoisting apparatus according to claim 1, characterized by, The gear mechanism (7) includes first gear (13), second gear (14), third gear assembly (15) and fourth gear (16), the first gear (13) and the fourth gear (16) are arranged on the rotating shaft (9) and rotate with the rotating shaft (9), the first gear (13) is conical gear, and the fourth gear (16) is spur gear;The second gear (14) is perpendicular to the rotating shaft (9) in axial direction, and it is meshed with the first gear (13);The third gear assembly (15) is composed of two conical gears and spur gears connected by shaft sleeve, the third gear assembly (15) is sleeved on the rotating shaft (9), and passes through the bearing seat (10), the conical gear of one end of the third gear assembly (15) is meshed with the second gear (14), and the spur gear of the other end is close to the fourth gear (16);The clamping arm (12) is arranged two, respectively meshed with the spur gear of the third gear assembly (15) and the fourth gear (16), the gear mechanism (7) forms coaxial positive and negative rotation structure, and the two clamping arms (12) are moved in the support (11) oppositely or oppositely, to realize the clamping or loosening of pipe fitting.

3. The large diameter stainless steel pipe section hoisting apparatus according to claim 2, characterized by, The lifting appliance (4) comprises a lifting ring (17), a movable plate (18), a lifting arm (19), a lifting hook (20) and a center frame (21), one end of the lifting ring (17) is connected with a hoisting device, the other end is movably connected with the movable plate (18), two symmetrical sliding grooves (22) are arranged on the movable plate (18), and a protrusion (23) is arranged in the middle; the center frame (21) is provided with a limiting plate (24) in the middle, the limiting plate (24) is located on both sides of the movable plate (18), and a slot for accommodating the movement of the protrusion (23) is arranged in the middle of the limiting plate (24); the lifting arm (19) is arranged on both sides of the movable plate (18), one end of the lifting arm (19) is provided with a roller (25), the roller (25) is movably connected in the sliding groove (22), the middle part of the lifting arm (19) is hinged with the end part of the center frame (21), the lifting hook (20) is arranged on the end part of the lifting arm (19), and the lifting hook (20) is provided with an arc-shaped groove; when the lifting ring (17) is lifted, the lifting arm (19) drives the two lifting hooks (20) to move towards each other under the action of the hinge, so that the clamping of the support plate (3) is realized.

4. The large diameter stainless steel pipe section hoisting apparatus according to claim 3, characterized by The support plate (3) has an arc-shaped side wall, which is matched with the arc-shaped groove on the lifting hook (20).

5. The large diameter stainless steel pipe section handling apparatus according to claim 1, wherein, The support frame (11) is internally provided with a plurality of limiting blocks (26), a plurality of limiting blocks (26) are arranged on both sides of the clamping arm (12), forming a space for accommodating the clamping arm (12) to pass through, and ensuring the stability and precision of the movement of the clamping arm (12).

6. The large diameter stainless steel pipe section hoisting apparatus according to claim 3, characterized by The arc-shaped groove of the lifting hook (20) is provided with a rubber pad.

7. The large diameter stainless steel pipe section handling apparatus according to any one of claims 1 to 6, characterized by, The support frame (11) and the clamping arm (12) are concentrically arc-shaped.

Images