A device for turning over a coil assembly of an ethylene cracking furnace

Abstract

This invention relates to the field of coil assembly welding technology, specifically to a device for rotating and assembling ethylene cracking furnace coils. The device includes a first support foot, a support mechanism welded to the upper side of the first support foot, a fixing mechanism mounted on the support mechanism, a second support block at the other end of the fixing mechanism, and a second support foot welded to the lower side of the second support block. The fixing mechanism includes a first rotating shaft, a limiting mechanism welded to one end of the first rotating shaft, and a fixing rod welded to the middle right side of the limiting mechanism. After assembling the ethylene cracking furnace coils using the welding mechanism, this solution allows the fixing mechanism to be directly removed and placed in a storage location, making it more convenient to use. During the assembly of the ethylene cracking furnace coils, the fixing mechanism can be removed, allowing the coils to be assembled on the ground, preventing accidental drops and damage.

Description

Technical Field

[0001] This invention relates to the field of coil welding technology, specifically to a device for rotating and turning the coils of an ethylene cracking furnace. Background Technology

[0002] Ethylene is the core of the petrochemical industry, and the ethylene cracking furnace coil is the core equipment of the ethylene production unit. Its main function is to process various raw materials such as natural gas, refinery gas, crude oil and naphtha into cracked gas and supply it to other ethylene units, which are then processed into various products such as ethylene and propylene.

[0003] Utility model patent CN211110604U discloses a universal fixture for storing, hoisting, and transporting ethylene cracking furnace coils. The invention includes base-mounted columns, support frames, inclined support frames, and crossbeams. Several sets of base-mounted columns are evenly arranged, and several crossbeams are arranged on each base-mounted column from top to bottom. Support frames and inclined support frames are arranged between adjacent base-mounted columns, and the support frames are symmetrically arranged on the upper and lower sides of the base-mounted columns. The ethylene cracking furnace coil includes a positioning fixture, a furnace coil body, and a fixing hinge. The furnace coil body is configured to cooperate with the crossbeams through the positioning fixture, and the fixing hinge is fixed to the base-mounted columns. This solution can significantly reduce storage space and transportation costs; it allows for direct overall hoisting and loading, greatly reducing labor; and it can prevent coil displacement or shaking, which could lead to coil damage or deformation.

[0004] While the above-mentioned methods facilitate the storage and transportation of ethylene cracking furnace coils, they require welding the coils before removing them from the welding equipment and placing them in the transport and storage facility. The ethylene cracking furnace coils are relatively large, making the operation cumbersome. Therefore, we propose a device for welding and flipping ethylene cracking furnace coils. Summary of the Invention

[0005] The present invention provides a device for welding and flipping the coil assembly of an ethylene cracking furnace to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A device for welding and flipping the coil assembly of an ethylene cracking furnace includes a first support leg, a support mechanism welded to the upper side of the first support leg, a fixing mechanism installed on the support mechanism, a second support block provided at the other end of the fixing mechanism, and a second support leg welded to the lower side of the second support block.

[0008] The fixing mechanism includes a first rotating shaft, a limiting mechanism welded to one end of the first rotating shaft, a fixed mounting rod welded to the middle right side of the limiting mechanism, and several movable mounting rods welded to the left and right sides of the right side surface of the limiting mechanism. An auxiliary mechanism is welded to the right end of the fixed mounting rod, and a second rotating shaft is welded to the right side surface of the auxiliary mechanism. A driven gear is mounted on the first rotating shaft, and first bearings are mounted on both the front and rear sides of the driven gear. A second bearing is mounted on the second rotating shaft.

[0009] As a preferred technical solution, the support mechanism includes a first support block and two fixing frames welded to the left and right ends of the upper surface of the first support block. A cavity is opened in the first support block. Bearing grooves are opened at the middle positions of the upper end of the front side surface and the upper end of the rear side surface of the first support block. A motor is installed on the front side surface of the first support block. A limit plug is slidably connected in each fixing frame. A handle is welded to the outer side of the upper surface of the limit plug.

[0010] As a preferred technical solution, the limiting mechanism includes a first support rod, a sliding groove formed on the right side surface of the first support rod, and two limiting grooves formed at the front and rear ends of the upper surface of the first support rod. A plurality of limiting blocks are slidably connected in the sliding groove, and each limiting block is threadedly connected with a limiting bolt.

[0011] As a preferred technical solution, a plurality of fastening hook and loop fasteners are fixedly installed on both the movable mounting rod and the fixed mounting rod. An auxiliary frame is welded to the side surface of both the movable mounting rod and the fixed mounting rod opposite the installation position of the fastening hook and loop fasteners. An installation groove is opened on the upper surface of both the movable mounting rod and the fixed mounting rod. An auxiliary block is welded to one end of the movable mounting rod.

[0012] As a preferred technical solution, the auxiliary mechanism includes a second support rod, auxiliary grooves formed at the left and right ends of the rear surface of the second support rod, and a positioning block welded to the lower end of the front surface of the second support rod.

[0013] As a preferred technical solution, the first bearing is installed in the bearing groove, and the upper surface of the second support block is provided with a groove for the second bearing to be installed.

[0014] As a preferred technical solution, the driven gear is located inside the cavity, and the motor output shaft is equipped with a driving gear, which meshes with the driven gear.

[0015] As a preferred technical solution, the thickness of the limiting block is less than the tooth pitch of the driven gear, the end of the limiting block near the driven gear is rounded, and the outer surface is covered with a rubber pad.

[0016] As a preferred technical solution, a movable mounting rod is welded to the right end of each limiting block, the middle limiting block is welded to the middle position of the sliding groove, and a fixed mounting rod is welded to the right end of the middle limiting block.

[0017] As a preferred technical solution, the right end of the fixed mounting rod is welded to the second support rod, and the auxiliary block welded to one end of the movable mounting rod is slidably connected to the auxiliary groove.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. After the ethylene cracking furnace coil is assembled and welded using a welding mechanism, the fixing mechanism can be directly removed and placed in the storage location, making it more convenient to use.

[0020] 2. When assembling and welding the ethylene cracking furnace coil, the fixing mechanism can be removed, and the ethylene cracking furnace coil can be assembled on the ground to prevent the ethylene cracking furnace coil from falling to the ground and being damaged due to careless operation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the support mechanism in this invention;

[0023] Figure 3 This is a schematic diagram of the fixing mechanism in this invention;

[0024] Figure 4 This is a schematic diagram of the limiting mechanism in this invention;

[0025] Figure 5 This is a schematic diagram of the movable mounting rod in this invention;

[0026] Figure 6 This is a schematic diagram of the auxiliary mechanism in this invention.

[0027] The meanings of the labels in the diagram are as follows:

[0028] 1. First supporting leg;

[0029] 2. Support mechanism; 21. First support block; 22. Motor; 23. Bearing groove; 24. Cavity; 25. Fixing frame; 26. Limiting block; 27. Handle;

[0030] 3. Fixing mechanism; 31. First rotating shaft; 32. First bearing; 33. Driven gear; 34. Limiting mechanism; 341. Sliding groove; 342. Limiting groove; 343. Limiting bolt; 344. Limiting block; 345. First support rod; 35. Movable mounting rod; 351. Fixing Velcro; 352. Auxiliary frame; 353. Auxiliary block; 354. Mounting groove; 36. Auxiliary mechanism; 361. Auxiliary groove; 362. Positioning block; 363. Second support rod; 37. Second bearing; 38. Second rotating shaft; 39. Fixed mounting rod;

[0031] 4. Second support block;

[0032] 5. Second support leg. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figures 1-6 This embodiment provides a technical solution:

[0035] A device for welding and flipping ethylene cracking furnace coils includes a first support foot 1, a support mechanism 2 welded to the upper side of the first support foot 1, a fixing mechanism 3 installed on the support mechanism 2, a second support block 4 provided at the other end of the fixing mechanism 3, and a second support foot 5 welded to the lower side of the second support block 4. The fixing mechanism 3 includes a first rotating shaft 31, a limiting mechanism 34 welded to one end of the first rotating shaft 31, a fixed mounting rod 39 welded to the middle right side of the limiting mechanism 34, and several movable mounting rods 35 welded to the left and right sides of the right side surface of the limiting mechanism 34. An auxiliary mechanism 36 is welded to the right end of the fixed mounting rod 39, and a second rotating shaft 38 is welded to the right side surface of the auxiliary mechanism 36. A driven gear 33 is installed on the first rotating shaft 31, and first bearings 32 are installed on both the front and rear sides of the driven gear 33. A second bearing 37 is installed on the second rotating shaft 38. Through the above mechanism, the fixing mechanism 3 can be easily removed or installed, which is very convenient whether assembling the coils safely on the ground or removing the coils for storage and transportation after welding.

[0036] Furthermore, the support mechanism 2 includes a first support block 21 and two fixing frames 25 welded to the left and right ends of the upper surface of the first support block 21. A cavity 24 is provided inside the first support block 21. Bearing grooves 23 are provided at the middle positions of the upper end of the front surface and the upper end of the rear surface of the first support block 21. A motor 22 is installed on the front surface of the first support block 21. A limit plug 26 is slidably connected inside each fixing frame 25. A handle 27 is welded to the outer side of the upper surface of the limit plug 26. The length of the limit plug 26 is sufficient to contact the inner circle of the driven gear 33.

[0037] Furthermore, the limiting mechanism 34 includes a first support rod 345, a sliding groove 341 opened on the right side surface of the first support rod 345, and two limiting grooves 342 opened at the front and rear ends of the upper surface of the first support rod 345. Several limiting blocks 344 are slidably connected in the sliding groove 341. Each limiting block 344 is threadedly connected with a limiting bolt 343. The limiting block 344 has a threaded hole that runs through it from top to bottom.

[0038] In this embodiment, several fastening hook and loop fasteners 351 are fixedly installed on both the movable mounting rod 35 and the fixed mounting rod 39. Auxiliary brackets 352 are welded to the side surfaces of the movable mounting rod 35 and the fixed mounting rod 39 opposite to the mounting positions of the fastening hook and loop fasteners 351. Mounting grooves 354 are opened on the upper surfaces of both the movable mounting rod 35 and the fixed mounting rod 39. An auxiliary block 353 is welded to one end of the movable mounting rod 35, and the auxiliary block 353 is slidably connected in the auxiliary groove 361.

[0039] In this embodiment, the auxiliary mechanism 36 includes a second support rod 363, auxiliary grooves 361 formed at the left and right ends of the rear surface of the second support rod 363, and a positioning block 362 welded to the lower end of the front surface of the second support rod 363. The upper surface of the positioning block 362 is provided with scale lines, with the center as the zero scale line and engraved to both sides.

[0040] In this embodiment, the first bearing 32 is installed in the bearing groove 23, and the upper surface of the second support block 4 is provided with a groove for the second bearing 37 to be installed, so that the fixing mechanism 3 can rotate easily.

[0041] In this embodiment, the driven gear 33 is located inside the cavity, and the output shaft of the motor 22 is equipped with a driving gear. The driving gear meshes with the driven gear 33. The motor 22 is a servo motor, which precisely controls the rotation angle of the driven gear 33.

[0042] In this embodiment, the thickness of the limiting block 26 is less than the pitch of the driven gear 33. The end of the limiting block 26 near the driven gear 33 is rounded, and the outer surface is covered with a rubber pad to prevent friction damage to the driven gear 33 when in contact.

[0043] In this embodiment, a movable mounting rod 35 is welded to the right end of each limiting block 344, the middle limiting block 344 is welded to the middle position of the sliding groove 341, and a fixed mounting rod 39 is welded to the right end of the middle limiting block 344. The fixed mounting rod 39 is welded to the first support rod 345 and the second support rod 363 at both ends.

[0044] In this embodiment, the right end of the fixed mounting rod 39 is welded to the second support rod 363, and the auxiliary block 353 welded to one end of the movable mounting rod 35 is slidably connected to the auxiliary groove 361. The connection between the auxiliary block 353 and the auxiliary groove 361 serves as an auxiliary support.

[0045] In this embodiment, both the first support leg 1 and the second support leg 5 are isosceles trapezoidal structures that are narrower at the top and wider at the bottom, which can better provide support.

[0046] In this embodiment, the limiting bolt 343 is a hexagonal screw brush, and the limiting bolt 343 can penetrate the limiting block 344.

[0047] It is worth noting that the structure and working principle of the motor 22 involved in this embodiment are as known to those skilled in the art, and will not be described in detail here.

[0048] In the specific use of the ethylene cracking furnace coil welding and flipping device of this embodiment, the fixing mechanism 3 is first removed from the support mechanism 2, the fixing mechanism 3 is placed on the ground, and the coil is fixed into the mounting groove 354 on the movable mounting rod 35 for assembly. The distance between the fixing mounting rod 39 and the movable mounting rod 35 can be controlled by pushing the limiting block 344 in the sliding groove 341 to slide. After adjusting the distance, the limiting bolt 343 is tightened to fix the position of the limiting block 344. Then, the fixing mechanism 3 is put back onto the support mechanism 2. The driven gear 33 is placed into the cavity 24 and meshes with the driving gear. After the control coil is in a horizontal state, the limiting block 26 in the fixing bracket 25 is pushed towards the driven gear 33. The driven gear 33 is fixed by the limiting block 26. After the worker welds the coil, the limiting block 26 can be pulled out, the motor 22 is started, and the driven gear 33 is driven to rotate by the driving gear. After rotating 180 degrees, the motor 22 is turned off, the driven gear 33 is fixed again by the limiting block 26, and welding is performed. After welding is completed, the fixing mechanism 3 can be directly removed and stored.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for welding and flipping the coil assembly of an ethylene cracking furnace, comprising a first support leg (1), characterized in that: A support mechanism (2) is welded to the upper side of the first support foot (1), a fixing mechanism (3) is installed on the support mechanism (2), a second support block (4) is provided at the other end of the fixing mechanism (3), and a second support foot (5) is welded to the lower side of the second support block (4). The fixing mechanism (3) includes a first rotating shaft (31), a limiting mechanism (34) welded to one end of the first rotating shaft (31), a fixed mounting rod (39) welded to the middle right side of the limiting mechanism (34), and several movable mounting rods (35) welded to the left and right sides of the right side surface of the limiting mechanism (34). An auxiliary mechanism (36) is welded to the right end of the fixed mounting rod (39). A second rotating shaft (38) is welded to the right side surface of the auxiliary mechanism (36). A driven gear (33) is installed on the first rotating shaft (31). A first bearing (32) is installed on both the front and rear sides of the driven gear (33). A second bearing (37) is installed on the second rotating shaft (38). The support mechanism (2) includes a first support block (21) and two fixing frames (25) welded to the left and right ends of the upper surface of the first support block (21). A cavity (24) is provided in the first support block (21). Bearing grooves (23) are provided at the middle positions of the upper end of the front side surface and the upper end of the rear side surface of the first support block (21). A motor (22) is installed on the front side surface of the first support block (21). A limit plug (26) is slidably connected in each fixing frame (25). A handle (27) is welded to the outer side of the upper surface of the limit plug (26). The limiting mechanism (34) includes a first support rod (345), a sliding groove (341) opened on the right side surface of the first support rod (345), and two limiting grooves (342) opened at the front and rear ends of the upper surface of the first support rod (345). A plurality of limiting blocks (344) are slidably connected in the sliding groove (341), and each limiting block (344) is threadedly connected with a limiting bolt (343). Several fastening hook and loop fasteners (351) are fixedly installed on both the movable mounting rod (35) and the fixed mounting rod (39). Auxiliary brackets (352) are welded to the side surfaces of the movable mounting rod (35) and the fixed mounting rod (39) opposite to the mounting positions of the fastening hook and loop fasteners (351). Mounting grooves (354) are opened on the upper surfaces of both the movable mounting rod (35) and the fixed mounting rod (39). An auxiliary block (353) is welded to one end of the movable mounting rod (35). The first bearing (32) is installed in the bearing groove (23), and the upper surface of the second support block (4) is provided with a groove for the second bearing (37) to be installed; The driven gear (33) is located in the cavity, and the output shaft of the motor (22) is equipped with a driving gear, which meshes with the driven gear (33). Each of the limiting blocks (344) has a movable mounting rod (35) welded to its right end. The middle limiting block (344) is welded to the middle position of the sliding groove (341). The right end of the middle limiting block (344) has a fixed mounting rod (39) welded to it.

2. The device for welding and flipping the coil assembly of an ethylene cracking furnace as described in claim 1, characterized in that: The auxiliary mechanism (36) includes a second support rod (363), auxiliary grooves (361) opened at the left and right ends of the rear surface of the second support rod (363), and a positioning block (362) welded to the lower end of the front surface of the second support rod (363).

3. The device for welding and flipping the coil assembly of an ethylene cracking furnace as described in claim 1, characterized in that: The thickness of the limiting plug (26) is less than the pitch of the driven gear (33). The end of the limiting plug (26) near the driven gear (33) is rounded and the outer surface is covered with a rubber pad.

4. The device for welding and flipping the coil assembly of an ethylene cracking furnace as described in claim 2, characterized in that: The right end of the fixed mounting rod (39) is welded to the second support rod (363), and the auxiliary block (353) welded to one end of the movable mounting rod (35) is slidably connected to the auxiliary groove (361).

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