CN220950851U - Send roller quenching hoist - Google Patents
Send roller quenching hoist Download PDFInfo
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- CN220950851U CN220950851U CN202322641523.1U CN202322641523U CN220950851U CN 220950851 U CN220950851 U CN 220950851U CN 202322641523 U CN202322641523 U CN 202322641523U CN 220950851 U CN220950851 U CN 220950851U
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- lifting table
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- 238000010791 quenching Methods 0.000 title claims abstract description 24
- 230000000171 quenching effect Effects 0.000 title claims abstract description 24
- 230000007704 transition Effects 0.000 claims abstract description 19
- 238000003466 welding Methods 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 19
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 8
- 238000013461 design Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910000753 refractory alloy Inorganic materials 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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Abstract
The utility model discloses a forest roller quenching lifting appliance, which belongs to the field of roller heat treatment and comprises a lifting table and a lifting ring, wherein the lifting table is arranged at one end of a forest roller body and integrated with the roller body, the diameter of the lifting table is larger than that of the roller body, the lifting table and the roller body are in conical surface transition, and the end surface of the lifting table and the roller body are in chamfer arc transition structures; the rings are of a whole ring structure, the inner diameter of each ring is larger than the diameter of the roller body and smaller than the diameter of the lifting table, and a plurality of opening grooves which are convenient for welding lifting rods are formed in the outer edges of the rings. The utility model has simpler operation, is convenient for hoisting, can ensure the verticality of the roller and the lifting appliance in the hoisting process, prevents the heat treatment deformation and effectively reduces the heat treatment deformation of the roller.
Description
Technical Field
The utility model relates to the field of roller heat treatment, in particular to a forest roller quenching lifting appliance.
Background
The multi-roller rolling mill is mainly used for cold rolling stainless steel strips, silicon steel strips, precise alloy strips, high-temperature refractory alloy strips, rare alloy strips, high-precision ultrathin cold rolled carbon steel strips, nonferrous metal strips and the like, and with the continuous development of national economy in China, the number of the multi-roller rolling mill is continuously increased, and the multi-roller rolling mill represented by eighteen-roller and twenty-roller Senjimi rolling mills is playing an increasingly large role. The multi-roller mill is characterized by tower-shaped roller system, small roller diameter, high rigidity of roller system, large pass reduction, high precision and low energy consumption and running cost.
Eighteen-roll and twenty-roll Sendzimir mill rolls are collectively called "Sen rolls", the Sen rolls are generally made of Cr12MoV, CZSI, 5H12 and the like, and the conventional method is to use a salt bath furnace for heating and then oil quenching, or use an atmosphere furnace for integrally heating and then cool the medium. When the atmosphere furnace is used for integral heating, a lifting table is designed at the head part of one end roller of the roller, the lifting table is clamped by a quenching lifting tool, and the roller is immersed in a quenching medium for cooling after heating. The structure of the conventional hoisting platform is shown in fig. 1, the conventional hoisting platform is generally hoisted by using a matched semi-ring structure, the structure is shown in fig. 2, and the operation method is as follows: after the semi-ring structure is sleeved on the excircle of the phi 93 roll neck, two semi-rings are welded into a whole ring, hanging rods are welded at the edges of the two semi-rings and hung on a plum blossom lifting tool, a crown block is used for operating to vertically extend a roll into an atmosphere furnace, the plum blossom lifting tool and the lower part Fang Gagun thereof are clamped above the atmosphere furnace, and a furnace door is closed for heating, wherein the temperature can reach more than 1000 ℃ during heating in the atmosphere furnace.
The problem encountered in practice is that cracks often exist at the transition part of a phi 150 x 35 lifting table and a phi 93 roll neck when the heating is finished and the cooling is carried out in a quenching medium, and analysis is because the part has larger section fall, is acted by the tension of gravity and the quenching stress, and generates stress ring cracks when the quenching medium is rapidly cooled, and waste products can be caused when the cracks are treated and are deeper. In addition, because the root of the hoisting table is of an arc structure, the excircle of the semi-ring hoisting tool is in contact with the arc structure, and the perpendicularity of the roller and the hoisting tool is poor in the hoisting process, so that the roller is deformed during high-temperature heating, the subsequent processing efficiency is affected, and even waste products are caused because of overlarge deformation. Meanwhile, as the lifting table is arranged at the roller head position, blank roller head allowance needs to be deliberately increased during design so as to further process the lifting table, the production cost is high, and the design is time-consuming and labor-consuming. Therefore, a new roller lifting appliance is urgently needed, can be simply arranged, is convenient to use, and can effectively prevent heat treatment deformation and reduce cracks and reduce rejection rate.
Disclosure of utility model
The utility model aims to solve the technical problems that the conventional Send roller integral quenching lifting table structure cannot meet production requirements and is easy to generate heat treatment deformation and cracking.
In order to solve the technical problems, the utility model adopts the following technical scheme: the forest roller quenching lifting appliance comprises a lifting table and a lifting ring, wherein the lifting table is arranged at one end of a forest roller body and integrated with the roller body, the diameter of the lifting table is larger than that of the roller body, the lifting table and the roller body are in conical surface transition, and a chamfer arc transition structure is formed between the lifting table and the end face of the roller body; the rings are of a whole ring structure, the inner diameter of each ring is larger than the diameter of the roller body and smaller than the diameter of the lifting table, and a plurality of opening grooves which are convenient for welding lifting rods are formed in the outer edges of the rings.
The technical scheme of the utility model is further improved as follows: the diameter of the lifting table is 8mm larger than that of the roller body, the width of the lifting table is 30mm, the width of a conical surface of the transition between the lifting table and the roller body is 50mm, and the inclination angle of the conical surface is 4 degrees 34'.
The technical scheme of the utility model is further improved in that the specification of the chamfer arc transition structure of the hoisting table and the end face of the roller body is R10.:
The technical scheme of the utility model is further improved as follows: the inner diameter of the lifting ring is 2mm larger than the diameter of the roller body, the outer diameter of the lifting ring is 60mm larger than the inner diameter, the thickness is 40mm, the number of the notch grooves is 6, the lifting ring is uniformly distributed on the outer edge of the lifting ring, and the specification is R8.
The technical scheme of the utility model is further improved as follows: the diameter of the forest roller body is 158mm.
By adopting the technical scheme, the utility model has the following technical progress: through changing the thinking of the conventional process of designing the lifting platform at the roller head part, the lifting platform is creatively arranged at the roller body part, gravity center gravity distribution and stress distribution during the forest roller lifting are changed, the perpendicularity of the forest roller and the lifting appliance in the lifting process can be ensured, and heat treatment deformation can be prevented. By arranging the conical surface transition structure of the lifting table and the roller body part, the quenching stress caused by sudden change of the section is reduced, and the problem of easy cracking during quenching is avoided. Through setting up the outer edge and arranging the whole ring rings in a plurality of opening grooves, make hoist and mount implementation easier, convenient operation has saved two semi-rings and has needed welded work load, improves operating efficiency, and a plurality of evenly distributed's outer edge opening welding hoist rod is also more stable more guarantees the perpendicularity of forest roller and hoist when atmosphere stove high temperature heating more easily. The novel lifting table structure can finish machining by using blank allowance, so that the defects that the blank roller head allowance is required to be deliberately increased and the lifting table is machined when the roller head lifting table is designed by the conventional process are overcome, the blank allowance is reduced, and the production cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art;
FIG. 1 is a schematic view of a conventional hoisting table;
FIG. 2 is a schematic view of a conventional lifting ring matched with a lifting table;
FIG. 3 is a schematic view of the structure of the hoisting table of the present utility model;
FIG. 4 is a schematic view of the structure of the lifting ring of the present utility model;
FIG. 5 is a schematic view of the thickness of the sling
The novel roller comprises a roller body, a lifting table, a conical surface, a chamfer arc transition structure, a lifting ring, a gap groove and a chamfer arc transition structure, wherein the roller body is 1, the lifting table is 2, the conical surface is 21, the chamfer arc transition structure is 22, and the lifting ring is 31.
Detailed Description
The utility model is further illustrated by the following examples:
Example 1
As shown in FIG. 3, the structure of the Send roller quenching sling is schematically shown, the sling is divided into a lifting platform 2 and a lifting ring 3, wherein the lifting platform 2 is integrated with a roller body 1 by using the Send roller blank allowance processing, the Send roller body 1 is arranged at one end of the roller body 1, the diameter of the Send roller body 1 is 158mm, the diameter of the lifting platform 2 is 8mm larger than that of the roller body 1, the lifting platform 2 and the roller body 1 adopt conical surface 21 for transition, the width of the lifting platform 2 is 30mm, the width of the conical surface 21 for the transition of the lifting platform 2 on the roller body 1 is 50mm, and the inclination angle of the conical surface 21 is 4 degrees 34'. The end face of the hoisting table 2 connected with the roller body 1 is provided with a chamfer arc transition structure 22, the specific specification is R10, and stress concentration during quenching can be effectively reduced through the arrangement.
As shown in fig. 4 and 5, the lifting ring 3 is of a whole ring structure, the inner diameter of the lifting ring 3 is 2mm larger than the diameter of the roller body 1, the lifting ring 3 is conveniently clamped on the lifting table 2 by penetrating through the forest roller body 1, the lifting ring 3 is made of low carbon steel, the thickness is 40mm, the strength during lifting is guaranteed, the outer diameter of the lifting ring 2 is 60mm larger than the inner diameter, 6 opening grooves 31 which are uniformly distributed are formed in the outer edge of the outer diameter in a processing mode, the opening grooves 31 are used for welding lifting rods, and lifting operation is simpler, more convenient and stable. The specification of the notch groove 31 is R8, the diameter of the opening is 15mm, and the depth is 5mm. When the device is used, the hanging ring 3 is penetrated from the end of the forest roller body far away from the hanging table 2, clamped on the hanging table 2, the hanging rod is welded in the notch groove 31 on the outer edge of the hanging ring 3, hung on the plum blossom hanging tool, the forest roller is vertically stretched into the atmosphere furnace by using the crown block to operate, and the plum blossom hanging tool and the lower Fang Gagun thereof are clamped above the atmosphere furnace, and the furnace door is closed for heating.
The utility model relates to a novel forest roller quenching lifting appliance, which changes the thought of designing a lifting table at the roller head part in the conventional process, and designs the lifting table at the roller body edge part to change the gravity center and gravity stress distribution, so that the stress is more uniform and the verticality is more controllable, the lifting table and the roller body are designed into conical surface transition, the quenching stress caused by sudden change of the section is reduced, and the lifting table is prevented from cracking after quenching; the whole-ring lifting appliance matched with the design is simpler to operate, convenient to lift, and capable of guaranteeing the perpendicularity of the roller and the lifting appliance in the lifting process, preventing heat treatment deformation and effectively reducing the heat treatment deformation of the roller.
The above examples are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solution of the present utility model should fall within the scope of protection defined by the claims of the present utility model without departing from the spirit of the design of the present utility model.
Claims (5)
1. The utility model provides a sen roller quenching hoist, includes hoist and mount platform (2) and rings (3), its characterized in that: the lifting table (2) is arranged at one end of the forest roller body (1) and integrated with the roller body (1), the diameter of the lifting table (2) is larger than that of the roller body (1), the lifting table (2) and the roller body (1) are in conical surface (21) transition, and the end face of the roller body (1) is in a chamfer arc transition structure (22); the lifting ring (3) is of a whole ring structure, the inner diameter of the lifting ring is larger than the diameter of the roller body and smaller than the diameter of the lifting table (2), and a plurality of opening grooves (31) which are convenient for welding lifting rods are formed in the outer edge of the lifting ring (3).
2. The sen roll quenching sling as defined in claim 1, wherein: the diameter of the lifting table (2) is 8mm larger than that of the roller body (1), the width of the lifting table is 30mm, the width of a conical surface (21) for transition between the lifting table (2) and the roller body (1) is 50mm, and the inclination angle of the conical surface (21) is 4 degrees 34'.
3. The sen roll quenching sling as defined in claim 2, wherein: the specification of a chamfer arc transition structure (22) of the end surfaces of the hoisting table (2) and the roller body (1) is R10.
4. The sen roll quenching sling as defined in claim 1, wherein: the inner diameter of the lifting ring (3) is 2mm larger than the diameter of the roller body (1), the outer diameter of the lifting ring (3) is 60mm larger than the inner diameter, the thickness is 40mm, the number of the opening grooves (31) is 6, the lifting ring is uniformly distributed on the outer edge of the lifting ring (3), and the specification is R8.
5. A sen roll quenching spreader as claimed in any one of claims 1 to 4 wherein: the diameter of the forest roller body (1) is 158mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322641523.1U CN220950851U (en) | 2023-09-28 | 2023-09-28 | Send roller quenching hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322641523.1U CN220950851U (en) | 2023-09-28 | 2023-09-28 | Send roller quenching hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220950851U true CN220950851U (en) | 2024-05-14 |
Family
ID=90974224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322641523.1U Active CN220950851U (en) | 2023-09-28 | 2023-09-28 | Send roller quenching hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220950851U (en) |
-
2023
- 2023-09-28 CN CN202322641523.1U patent/CN220950851U/en active Active
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