CN111960248B - Large-scale ring forging hot working hoist device - Google Patents
Large-scale ring forging hot working hoist device Download PDFInfo
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- CN111960248B CN111960248B CN202010710796.5A CN202010710796A CN111960248B CN 111960248 B CN111960248 B CN 111960248B CN 202010710796 A CN202010710796 A CN 202010710796A CN 111960248 B CN111960248 B CN 111960248B
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- lifting
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- cross beam
- support ring
- wall surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
- B66C1/14—Slings with hooks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
- B66C1/125—Chain-type slings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/34—Crane hooks
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention belongs to the field of advanced manufacturing, and particularly relates to a large-scale ring forging hot-working hoisting device which comprises a top lug frame, a middle cross beam support frame and a bottom lifting hook; the top lifting lug frame is connected by a lifting ring, a lifting lug and a lifting cylinder through welding; the middle cross beam support frame is formed by connecting a support ring, a cross beam, an L-shaped hook block and a reinforcing rib through welding; the bottom hook is adapted to directly contact the ring. The invention can ensure that the ring forging is stressed uniformly and does not deform under the action of self gravity in the process of hoisting the large-scale ring forging after ring rolling and during heat treatment of the ring, the lifting appliance is stable and does not shake, the product quality is ensured, the repair rate of the product is reduced to 3 percent from the original 10 percent, the production period is greatly shortened, and the production cost is saved.
Description
Technical Field
The invention belongs to the field of ring forging, and particularly relates to a large-scale ring forging hot-working hoisting device.
Background
The hoisting problem of the large-scale ring forging in the manufacturing process is solved, and the hot processing technological process of the large-scale ring forging is as follows: the device is mainly used for hoisting ring pieces after ring rolling and in the heat treatment process. After ring rolling, the outer diameter of a large ring forging is generally 5.5-7.8 m, the weight is 12-30 t, the existing hoisting device is only provided with three lifting hooks, and the three lifting hooks cause the deformation of warping, ellipse and the like of the ring forging under the action of self gravity due to very low hot ring strength and large diameter in the hoisting process, so that subsequent processing is influenced, and the adjustment cannot be carried out according to the size of the ring piece. Therefore, a large-scale ring forging hot-working hoisting device needs to be researched, and the large-scale ring forging hot-working hoisting device can be suitable for hoisting the inner diameter and the outer diameter of a large-scale ring forging of 5.5-7.8 m, so that the ring forging is uniformly stressed and does not deform under the action of self gravity in the hoisting process, a hoisting tool is stable and does not shake, the product quality is ensured, the repair rate of a product is reduced to 3% from the original 10%, the production period is greatly shortened, and the production cost is saved.
Disclosure of Invention
The invention can ensure that the ring piece is stressed uniformly in the process of hoisting the large-scale ring forging piece after ring rolling and during heat treatment, the ring piece is not deformed under the action of self gravity, the hoisting tool is stable and does not shake, the product quality is ensured, the repair rate of the product is reduced to 3 percent from the original 10 percent, the production period is greatly shortened, and the production cost is saved.
The purpose of the invention is realized by the following technical scheme:
the invention belongs to the field of advanced manufacturing, and particularly relates to a large-scale ring forging hot-working hoisting device which comprises a top lug frame, a middle cross beam support frame and a bottom lifting hook; the top lifting lug frame is connected by a lifting ring, a lifting lug and a lifting cylinder through welding; the middle cross beam support frame is connected by a support ring, a cross beam, an L-shaped hook block and a reinforcing rib through welding; the bottom hook is adapted to directly contact the ring. The invention adopts 6 crossbeams which are uniformly distributed on a support ring and reinforcing ribs to be connected by welding, the reinforcing ribs play a role of strengthening inside and outside the crossbeams, and a heavy shackle, a lifting butterfly buckle and a high-strength lifting chain are adopted to connect a top lug frame, a middle crossbeam support frame and a bottom lifting hook;
a large-scale ring forging hot working hoisting device comprises a top lug frame, a middle cross beam supporting frame and a bottom lifting hook;
the top lifting lug frame comprises a lifting ring, a lifting cylinder and a lifting lug; the lifting ring is fixedly connected to the upper part of the lifting cylinder, and more than 3 lifting lugs are uniformly distributed and fixedly connected to the outer wall surface of the middle lower part of the lifting cylinder;
the middle cross beam support frame comprises a support ring, a cross beam, an outer side reinforcing rib and an inner side reinforcing rib;
the supporting ring is of an annular structure, the cross beams are of a strip structure, more than 3 cross beams are uniformly and fixedly connected to the upper end face of the supporting ring in a distributed manner, the projection of the cross beams on the plane of the upper end face of the supporting ring is that one end of each cross beam is positioned in an annular area surrounded by the supporting ring, and the other end of each cross beam is positioned outside the annular area surrounded by the supporting ring;
the outer side reinforcing ribs and the inner side reinforcing ribs are arranged on the inner wall surface and the outer wall surface of the supporting ring below the cross beam respectively; one end of the outer reinforcing rib is fixedly connected to the outer wall surface of the support ring, and the upper end of the outer reinforcing rib is fixedly connected to the lower wall surface of the cross beam; one end of the inner reinforcing rib is fixedly connected to the inner wall surface of the support ring, and the upper end of the outer reinforcing rib is fixedly connected to the lower wall surface of the cross beam;
more than 3L-shaped hook blocks are fixedly connected to the support ring in an evenly distributed manner, the upper end face of the lower transverse structure of each L-shaped hook block is fixedly connected to the lower end face of the support ring, and the side wall face of the vertical structure, close to the transverse structure side, of each L-shaped hook block is fixedly connected to the outer wall face of the support ring; the lifting lugs and the L-shaped hook blocks are the same in number, and the L-shaped hook blocks and the lifting lugs are respectively connected in a one-to-one correspondence manner through lifting chains;
and a hoisting chain is arranged on the cross beam outside the annular area surrounded by the support ring, one end of the hoisting chain is connected with the cross beam, and the other end of the hoisting chain is connected with a bottom lifting hook.
The joint of the hoisting chain and the cross beam is at the A position, and the A positions of more than 3 cross beams are uniformly distributed on the same circumference.
2-8 connecting parts with the hoisting chain are arranged on the cross beams in the direction far away from the support ring, and the corresponding connecting parts on more than 3 cross beams are uniformly distributed on the same circumference.
A transverse connecting through hole is formed in the lifting lug, a transverse connecting through hole is formed in the upper portion of the L-shaped hook block, and two ends of the lifting chain are connected with the upper portion of the L-shaped hook block and the lifting lug through the connecting through hole respectively and sequentially through a lifting butterfly buckle and a heavy shackle;
the transverse connecting through holes are formed in the cross beam, the transverse connecting through holes are formed in the upper portion of the bottom lifting hook, and two ends of the lifting chain are connected with the cross beam and the bottom lifting hook respectively through the lifting butterfly buckles and the heavy shackles in sequence through the connecting through holes.
The number of the beams and the number of the L-shaped hook blocks are the same and are 4-8, and the beams and the L-shaped hook blocks are sequentially and alternately and uniformly distributed and fixedly connected to the upper end surface of the support ring.
The hanging cylinder is of a cylindrical structure with openings at the upper end and the lower end;
the hanging ring is an inverted U-shaped plate body, two side edges of the lower end of the U-shaped plate body are respectively welded on the outer wall surface of the middle lower part of the hanging cylinder, and the length of a welding area between the two side edges along the axial direction of the hanging cylinder is 1/3-1/2 of the axial height of the hanging cylinder;
the lifting lugs are welded on the outer wall surface of the middle lower part of the hanging cylinder, 5-6 lifting lugs are uniformly distributed on the outer wall surface of the hanging cylinder along the radial direction, and the length of a welding zone between the lifting lugs and the outer wall surface of the hanging cylinder along the axial direction of the hanging cylinder is 1/3-1/2 of the axial height of the hanging cylinder.
The support ring is a circular ring; the crossbeam is of a strip-shaped structure, the crossbeam is placed along the radial direction of the support ring, and 5-6 crossbeams are uniformly distributed on the circumference where the upper end surface of the support ring is located;
the length direction of the cross beam is in the radial direction of the support ring;
the L-shaped hook block is characterized in that the axial section of the support ring passing through the L-shaped hook block is L-shaped, and two sides of the inner corner of the support ring are respectively welded on the lower end surface and the outer wall surface of the support ring.
The cross beam is welded on the upper end surface of the support ring; one end of the outer reinforcing rib is welded on the outer wall surface of the support ring, and the upper end of the outer reinforcing rib is welded on the lower wall surface of the cross beam; one end of the inner reinforcing rib is welded on the inner wall surface of the support ring, and the upper end of the outer reinforcing rib is welded on the lower wall surface of the cross beam; 8. the apparatus of claim 1, wherein:
the welding composition is that each part is processed with a groove and then is welded through by gas shielded welding.
And an anti-skid groove is arranged at a lifting point on the bottom lifting hook, which is in contact with a lifted object.
The support ring needs to be manufactured through forging, seamless ring rolling, normalizing and finish turning.
5 holes are drilled in the cross beam, and the positions of the lifting hooks for shackle removal in the holes are adjusted according to the size of the large-scale ring forging, so that the ring forging with the length of 5.5-7.8 meters can be hoisted.
The bottom lifting hook can lift the inner diameter or the outer diameter of the large ring segment component by adjusting the direction of the lifting hook, and various lifting modes are realized.
The number of the beams and the number of the L-shaped hook blocks are 4-8, preferably 5-6, and the number of the beams and the number of the L-shaped hook blocks are preferably the same.
The hoisting chain is a traction chain.
The invention has the advantages and positive effects that:
1. the invention can be applied to the hoisting of large-scale ring forgings of 5.5-7.8 meters after ring rolling and in the heat treatment process.
2. According to the invention, 5 holes are punched on the cross beam, and the positions of the lifting hooks for shackle removal in the holes are adjusted according to the size of the large-scale ring forging, so that the lifting hook can be used for lifting the ring forging with the length of 5.5-7.8 meters.
3. The invention can hoist the inner diameter or the outer diameter of the large ring segment component by adjusting the direction of the bottom lifting hook, thereby realizing various hoisting modes.
4. The invention is provided with an anti-skid groove on the bottom lifting hook;
5. the top lifting lug structure adopts a lightweight design, so that the weight of the lifting appliance is light, and the strength requirement of the lifting appliance can be met;
6. the invention adopts six-point hoisting, and the reinforcing ribs and the cross beam structure which are uniformly distributed enable the gravity center of the hoisting tool to be positioned between the support ring and the large-scale ring forging, so that the hoisting tool does not shake after hoisting, the stress of the forging is uniform in the hoisting process, the deformation is not generated under the action of the gravity of the hoisting tool, the product quality is ensured, the repair rate of the product is reduced to 3 percent from the original 10 percent, the production period is greatly shortened, and the production cost is saved.
Drawings
FIG. 1 is a schematic view of a partial lifting lug frame configuration of the present invention;
FIG. 2 is a schematic view of the middle cross beam support frame structure of the present invention;
FIG. 3 is a schematic structural view of the large-scale ring forging hot working hoisting device of the invention;
wherein: the device comprises a lifting ring 1, a lifting cylinder 2, a lifting lug 3, a support ring 4, a cross beam 5, an outer reinforcing rib 6, an inner reinforcing rib 7, an L-shaped hook block 8, a bottom lifting hook 9, a heavy shackle 10, a lifting butterfly buckle 11 and a high-strength lifting chain 12.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, 2 and 3, the present invention comprises a lifting ring 1, a lifting cylinder 2, a lifting lug 3, a support ring 4, a cross beam 5, an outer reinforcing rib 6, an inner reinforcing rib 7, an L-shaped hook block 8, a bottom lifting hook 9, a heavy duty shackle 10, a lifting butterfly shackle 11 and a high strength lifting chain 12; wherein the lifting ring 1, the lifting cylinder 2 and the lifting lug 3 form a top lifting lug frame through welding; the support ring 4, the cross beam 5, the outer reinforcing ribs 6 and the inner reinforcing ribs 7 form a middle cross beam support frame through welding.
The top lug frame consists of a hanging ring 1, a hanging cylinder 2 and a hanging lug 3; the hanging ring 1 is an inverted U-shaped elliptical arc, and is welded and connected with the hanging cylinder 2 after being beveled; the six lifting lugs 3 are evenly distributed and placed after being beveled and are welded with the lifting cylinders 2; the hanging cylinder is formed by cutting a seamless steel pipe; a through hole for connecting a shackle is drilled on the lifting lug; the bottom of the lifting lug is flush with the bottom of the lifting cylinder.
The middle cross beam support frame consists of a support ring 4, a cross beam 5, an outer side reinforcing rib 6, an inner side reinforcing rib 7 and an L-shaped hook block 8; after grooves are formed on the six cross beams 5, the six cross beams are uniformly distributed and welded with the support ring 4; two right-angle sides on the six outer reinforcing ribs 6 are beveled and then are welded with the support ring 4 and the cross beam 5, wherein a short right-angle side is welded with the outer diameter of the support ring 4, and a long right-angle side is welded with the lower end face of the cross beam 5; two right-angle sides of the inner reinforcing ribs 7 are beveled and then welded with the support ring 4 and the cross beam 5, wherein two right-angle sides of the six inner reinforcing ribs 7 are equal, one right-angle side is welded with the inner diameter of the support ring 4, and the other right-angle side is welded with the lower end face of the cross beam 5; six L-shaped hook blocks 8 are positioned in the middle of the two cross beams 5 and are evenly placed, the two sides of the contact position of the lower end faces of the L-shaped hook blocks 8 and the support ring 4 are beveled and then welded, and through holes for connecting shackles are drilled on the L-shaped hook blocks.
The bottom lifting hook 9 is drilled with a through hole for connecting a shackle, and an anti-skid groove is arranged at the contact surface of the bottom lifting hook and the ring forging. The top lifting lug through hole and the L-shaped hook block through hole are respectively connected in a one-to-one correspondence mode through the two ends of the lifting chain 12 sequentially through the lifting butterfly buckles 11 and the heavy shackles 10, and the number of sections and the length of the six lifting chains are identical.
The through hole of the bottom lifting hook 9 and one of the five through holes on the cross beam 5 are respectively connected in a one-to-one correspondence manner through the two ends of the lifting chain 12 sequentially through the lifting butterfly buckles 11 and the heavy shackles 10, and the number of the sections and the length of the six lifting chains are ensured to be the same.
The center lines of the top lug frame and the middle cross beam support frame are collinear.
The welding composition of the invention is to weld through connection by gas shielded welding after each part is processed with a groove.
The invention is provided with an anti-skid groove on the bottom lifting hook;
according to the invention, 5 holes are punched on the cross beam, and the positions of the lifting hooks for shackle removal in the holes are adjusted according to the size of the large-scale ring forging, so that the lifting hook can be used for lifting the ring forging with the length of 5.5-7.8 meters.
The invention can be applied to the hoisting of large-scale ring forgings of 5.5-7.8 meters after ring rolling and in the heat treatment process.
The invention can hoist the inner diameter or the outer diameter of the large ring segment component by adjusting the direction of the bottom lifting hook, thereby realizing various hoisting modes.
The invention is provided with an anti-skid groove on the bottom lifting hook;
the top lifting lug structure adopts a lightweight design, so that the weight of the lifting appliance is light, and the strength requirement of the lifting appliance can be met;
according to the invention, six-point hoisting is adopted, and the gravity center of the lifting appliance is positioned between the support ring and the large-scale ring forging by the aid of the arranged reinforcing ribs and the beam structure, so that the lifting appliance cannot shake after being lifted, the stress of the forging is uniform in the hoisting process, the forging cannot deform under the action of self gravity, the product quality is ensured, the repair rate of the product is reduced to 3% from the original 10%, the production period is greatly shortened, and the production cost is saved.
The working principle of the invention is as follows:
the invention consists of a lifting ring 1, a lifting cylinder 2, a lifting lug 3, a support ring 4, a cross beam 5, an outer side reinforcing rib 6, an inner side reinforcing rib 7, an L-shaped hook block 8, a bottom lifting hook 9, a heavy duty shackle 10, a lifting butterfly buckle 11 and a high-strength lifting chain 12.
Wherein the lifting ring 1, the lifting cylinder 2 and the lifting lug 3 form a top lifting lug frame through welding;
the support ring 4, the cross beam 5, the outer reinforcing rib 6 and the inner reinforcing rib 7 form a middle cross beam support frame through welding;
wherein the bottom lifting hook is provided with an anti-skid groove;
as shown in fig. 3, a heavy shackle, a lifting butterfly buckle and a high-strength lifting chain are adopted to connect the top lug frame, the middle cross beam support frame and the bottom lifting hook, and the bottom lifting hook is directly contacted with the large ring segment.
By utilizing the six-point hoisting characteristic of the invention, the gravity center of the hoisting tool is positioned between the support ring and the large ring forging due to the arrangement of the reinforcing ribs and the beam structure, the hoisting tool does not shake after hoisting, the stress of the ring piece is uniform in the process of hoisting the large ring forging after ring rolling and during heat treatment, the ring piece does not deform under the action of the gravity of the ring piece, the product quality is ensured, the repair rate of the product is reduced to 3% from the original 10%, the production period is greatly shortened, and the production cost is saved.
Claims (9)
1. The utility model provides a large-scale ring forging hot working hoist device which characterized in that: comprises a top lug frame, a middle cross beam support frame and a bottom lifting hook;
the top lifting lug frame comprises a lifting ring (1), a lifting cylinder (2) and a lifting lug (3); the hanging ring (1) is fixedly connected to the upper part of the hanging cylinder (2), and more than 3 lifting lugs (3) are uniformly distributed and fixedly connected to the outer wall surface of the middle lower part of the hanging cylinder (2);
the middle cross beam support frame comprises a support ring (4), a cross beam (5), an outer side reinforcing rib (6) and an inner side reinforcing rib (7);
the supporting ring (4) is of an annular structure, the cross beams (5) are of a strip structure, more than 3 cross beams (5) are uniformly and fixedly connected to the upper end face of the supporting ring (4) in a distributed manner, the projection of the cross beams (5) on the plane of the upper end face of the supporting ring (4) is that one end of the projection is positioned in an annular area surrounded by the supporting ring (4), and the other end of the projection is positioned outside the annular area surrounded by the supporting ring (4);
the inner wall surface and the outer wall surface of the support ring (4) below the cross beam (5) are respectively provided with an outer side reinforcing rib (6) and an inner side reinforcing rib (7); one end of the outer reinforcing rib (6) is fixedly connected to the outer wall surface of the support ring (4), and the upper end of the outer reinforcing rib (6) is fixedly connected to the lower wall surface of the cross beam (5); one end of the inner reinforcing rib (7) is fixedly connected to the inner wall surface of the support ring (4), and the upper end of the outer reinforcing rib (6) is fixedly connected to the lower wall surface of the cross beam (5);
more than 3L-shaped hook blocks (8) are fixedly connected to the support ring (4) in an evenly distributed manner, the upper end face of the transverse structure at the lower part of each L-shaped hook block (8) is fixedly connected to the lower end face of the support ring (4), and the side wall face of the vertical structure, close to the transverse structure side, of each L-shaped hook block (8) is fixedly connected to the outer wall face of the support ring (4); the lifting lugs (3) and the L-shaped hook blocks (8) are the same in quantity, and the L-shaped hook blocks (8) are connected with the lifting lugs (3) in a one-to-one correspondence mode through lifting chains respectively;
a hoisting chain (12) is arranged on the cross beam (5) outside the annular area surrounded by the support ring (4), one end of the hoisting chain (12) is connected with the cross beam (5), and the other end of the hoisting chain (12) is connected with a bottom lifting hook (9); a transverse connecting through hole is formed in the lifting lug (3), a transverse connecting through hole is formed in the upper portion of the L-shaped hook block (8), and two ends of the hoisting chain (12) are connected with the upper portion of the L-shaped hook block (8) and the lifting lug (3) through the connecting through hole respectively and sequentially through a hoisting butterfly buckle and a heavy shackle;
the transverse connecting through holes are formed in the cross beam (5), the transverse connecting through holes are formed in the upper portion of the bottom lifting hook (9), and two ends of the lifting chain (12) are connected with the cross beam (5) and the bottom lifting hook (9) through the connecting through holes respectively and sequentially through the lifting butterfly buckles (11) and the heavy shackles (10).
2. The apparatus of claim 1, wherein: the connection position of the hoisting chain (12) and the cross beam (5) is an A position, and the A positions of more than 3 cross beams (5) are uniformly distributed on the same circumference.
3. The apparatus of claim 2, wherein:
2-8 connecting parts with the hoisting chain (12) are arranged on the cross beam (5) in the direction far away from the support ring (4), and the corresponding connecting parts on more than 3 cross beams (5) are uniformly distributed on the same circumference.
4. The apparatus of claim 1, wherein:
the number of the cross beams (5) and the number of the L-shaped hook blocks (8) are the same and are 4-8, and the cross beams (5) and the L-shaped hook blocks (8) are sequentially and alternately and uniformly distributed and fixedly connected to the upper end surface of the support ring (4).
5. The apparatus of claim 1, wherein:
the hanging cylinder (2) is of a cylindrical structure with openings at the upper end and the lower end;
the hanging ring (1) is an inverted U-shaped plate body, two side edges of the lower end of the U-shaped plate body are respectively welded on the outer wall surface of the middle lower part of the hanging cylinder (2), and the length of a welding area between the two side edges along the axial direction of the hanging cylinder is 1/3-1/2 of the axial height of the hanging cylinder;
the lifting lugs (3) are welded on the outer wall surface of the middle lower part of the hanging cylinder (2), 5-6 lifting lugs (3) are uniformly distributed on the outer wall surface of the hanging cylinder (2) along the radial direction, and the length of a welding zone between the lifting lugs (3) and the outer wall surface of the hanging cylinder (2) along the axial direction of the hanging cylinder is 1/3-1/2 of the axial height of the hanging cylinder.
6. The apparatus of claim 1, wherein:
the support ring (4) is a circular ring; the cross beam (5) is of a strip-shaped structure, the cross beam (5) is placed along the radial direction of the support ring (4), and 5-6 cross beams (5) are uniformly distributed on the circumference of the upper end surface of the support ring (4);
the length direction of the cross beam (5) is positioned in the radial direction of the support ring (4);
the L-shaped hook block (8) is characterized in that the axial section of the support ring (4) passing through the L-shaped hook block is L-shaped, and two sides of the inner corner of the L-shaped hook block are respectively welded on the lower end surface and the outer wall surface of the support ring (4).
7. The apparatus of claim 1, wherein:
the cross beam (5) is welded on the upper end surface of the support ring (4); one end of the outer reinforcing rib (6) is welded on the outer wall surface of the support ring (4), and the upper end of the outer reinforcing rib (6) is welded on the lower wall surface of the cross beam (5); one end of the inner reinforcing rib (7) is welded on the inner wall surface of the support ring (4), and the upper end of the outer reinforcing rib (6) is welded on the lower wall surface of the cross beam (5).
8. The apparatus of claim 7, wherein:
and in the welding step, after a groove is machined on each part, through welding connection is carried out through gas shielded welding.
9. The apparatus of claim 1, wherein:
and an anti-skid groove is arranged at a lifting point on the bottom lifting hook, which is in contact with a lifted object.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010710796.5A CN111960248B (en) | 2020-07-22 | 2020-07-22 | Large-scale ring forging hot working hoist device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010710796.5A CN111960248B (en) | 2020-07-22 | 2020-07-22 | Large-scale ring forging hot working hoist device |
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| CN111960248A CN111960248A (en) | 2020-11-20 |
| CN111960248B true CN111960248B (en) | 2022-06-21 |
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| CN117430003B (en) * | 2023-12-19 | 2024-02-23 | 定襄县德劲锻造有限公司 | Large-scale ring forging hot working hoist device |
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| GB675890A (en) * | 1949-08-06 | 1952-07-16 | Louis Meili Senior | Appliances for use with lifting apparatus |
| CN102476776A (en) * | 2010-11-29 | 2012-05-30 | 丹东丰能工业股份有限公司 | Ring lifting tool with function of mechanical control |
| CN102211732A (en) * | 2011-05-12 | 2011-10-12 | 西安航天动力机械厂 | Conical piece hoisting device |
| CN103183282A (en) * | 2011-12-29 | 2013-07-03 | 上海联合滚动轴承有限公司 | Hoisting tool used for large ring pieces |
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| CN111960248A (en) | 2020-11-20 |
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