CN216688248U - Heat treatment pit furnace single part built-in quenching tool - Google Patents
Heat treatment pit furnace single part built-in quenching tool Download PDFInfo
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- CN216688248U CN216688248U CN202122343565.8U CN202122343565U CN216688248U CN 216688248 U CN216688248 U CN 216688248U CN 202122343565 U CN202122343565 U CN 202122343565U CN 216688248 U CN216688248 U CN 216688248U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model provides a heat treatment pit furnace single part built-in quenching frock, includes jib, lifting seat, brace rod and a pair of lifting claw, the lifting seat is discoid, through brace rod above that and the jib fixed connection of cup jointing in centre of a circle department, a pair of lifting claw of bottom installation of jib sets up concentric horizontal pin hole on the lifting claw respectively, the horizontal pin alternates in the concentric horizontal pin hole, it is inboard to lie in position overlap joint rings apex angle between two lifting claws on the horizontal pin, rings weld on the axle part, the lifting seat is arranged in pit furnace bearing on the circle. The tool is simple in structure, convenient to machine and simple and quick to operate. The assembling method of the tool comprises the steps of manufacturing the tool, installing shaft parts, placing the tool and the like. By adopting the structure, the quenching device is suitable for quenching a single large shaft part in a shaft furnace, and the part is suspended and hung in the air, so that the occurrence of heat treatment distortion is reduced; the assembly method can improve the adaptability of the tool to heat treatment and improve the stability of the tool in the process of hanging the workpiece.
Description
Technical Field
The utility model belongs to the technical field of heat treatment lifting tool tools, and particularly relates to a heat treatment pit furnace single-part built-in quenching tool.
Background
Quenching is an important content of a heat treatment process, a large-scale pit furnace is generally used for quenching heat treatment of the shaft parts, the processed workpieces are generally heavy, and higher heating temperature and longer heating time are required. At present, most of tools are used by an external-bearing type suspension pit furnace, the external-bearing type suspension pit furnace cannot be provided with a circulating fan, and the uniformity of furnace temperature is not high. The precision of the current manufacturing production to equipment is higher and higher, the shaft furnace is provided with the circulating fan to become a normal state, the shaft furnace provided with the circulating fan requires that a workpiece is loaded in an internal bearing type furnace loading mode, and the requirement for quenching a larger part in the built-in shaft furnace is met.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of overcoming the defects of the prior art and provides a heat treatment pit furnace single-part built-in quenching tool, which adopts a workpiece suspension mode to reduce the occurrence of heat treatment distortion; the adaptability of the tool to heat treatment and the stability of the hanging process are improved, the operation is simple and convenient, and the labor is saved.
The utility model provides a heat treatment pit furnace single part built-in quenching tool, which comprises a hanging rod (1), a hanging seat (2), a supporting rib (4) and a pair of hanging claws (3), wherein the hanging seat (2) is disc-shaped, the hanging rod (1) sleeved at the circle center is fixedly connected with the supporting rib (4) on the hanging seat, the pair of hanging claws (3) are arranged at the bottommost part of the hanging rod, concentric transverse pin holes are respectively formed in the hanging claws (3), transverse pins (6) are inserted in the concentric transverse pin holes, the positions of the transverse pins (6) between the two hanging claws (3) are lapped on the inner side of the vertex angle of a hanging ring (5), the hanging ring (5) is welded on a shaft part (7), and the hanging seat (2) is arranged on a bearing ring in a pit furnace.
As a further technical scheme of the utility model, the top of the suspender (1) is provided with steps for grasping the furnace by a hanging tong, the hanging seat (2) is connected with the suspender (1) through a supporting rib (4), and the supporting rib (4) is provided with a notch for installing a wind guide cylinder of the shaft furnace.
Furthermore, the lower part of the hanging ring (5) is welded and fixed with the shaft part (7), and the length of a welding line is 120-200 mm.
Furthermore, a transverse pin (6) is inserted into a concentric transverse pin hole of the lifting claw (3), the inner side of the vertex angle of the lifting ring (5) is lapped on the transverse pin, and the inner side of the vertex angle of the lifting ring (5) is matched with the outer surface of the transverse pin (6).
The tool has the advantages of simple structure, convenience in processing and simplicity and rapidness in operation. The assembling method of the tool comprises the steps of manufacturing the tool, installing shaft parts, placing the tool and the like. By adopting the structure, the quenching device is suitable for quenching a single large shaft part in a shaft furnace, and the part is suspended and hung in the air, so that the occurrence of heat treatment distortion is reduced; the assembly method can improve the adaptability of the tool to heat treatment and improve the stability of the tool in the process of hanging the workpiece.
Drawings
FIG. 1 is a first schematic view of a tooling structure of the present invention;
FIG. 2 is a schematic view of a tooling structure of the present invention;
FIG. 3 is a schematic view of a shaft part hanging structure according to the present invention;
fig. 4 is a top view of the tooling structure of the present invention.
Detailed Description
Referring to fig. 1-4, the present embodiment provides a heat treatment pit furnace single-component built-in quenching tool, including a suspension rod 1, a suspension seat 2, a supporting rib 4 and a pair of suspension claws 3, wherein the suspension seat 2 is disc-shaped, and is fixedly connected with the suspension rod 1 sleeved at the center of a circle through the supporting rib 4 thereon, the pair of suspension claws 3 is installed at the bottommost portion of the suspension rod, the suspension claws 3 are respectively provided with concentric transverse pin holes, transverse pins 6 are inserted into the concentric transverse pin holes, the transverse pins 6 are positioned between the two suspension claws 3 and overlap the inner sides of the vertex angles of suspension rings 5, the suspension rings 5 are welded on a shaft component 7, and the suspension seat 2 is arranged on a bearing ring in the pit furnace.
The top of the suspender 1 is provided with a step for grasping the furnace by a hanging tong, the hanging seat 2 is connected with the suspender 1 by a supporting rib 4, and the supporting rib 4 is provided with a notch for installing an air duct of the shaft furnace.
The lower part of the lifting ring 5 is welded and fixed with the shaft part 7, and the length of the welding line is 120-200 mm.
The transverse pin 6 is inserted into the concentric transverse pin hole of the lifting claw 3, the inner side of the top angle of the lifting ring 5 is lapped on the transverse pin, and the inner side of the top angle of the lifting ring 5 is matched with the outer surface of the transverse pin 6.
Thickness d of the suspension ring 51In mm; the mass G of the shaft part is in unit kg, and the relationship between the mass G and the unit kg satisfies the following conditions: g2 k pi d1 2And/4, wherein k is a safety coefficient and takes a value of 0.85.
An assembly method of a built-in quenching tool for a single large part of a heat treatment pit furnace comprises the following steps,
step S1, manufacturing a tool: the tool is formed by integral casting, and is subjected to normalizing treatment after casting, wherein the normalizing process comprises the following steps: air cooling at 930 deg.C for 3.5H;
step S2, mounting shaft parts: preheating a shaft part, welding a hanging ring at the top of the shaft part after preheating, inserting the hanging ring between a pair of hanging claws, inserting a transverse pin into a transverse pin hole of the hanging claw, and lapping the inner side of the vertex angle of the hanging ring on the transverse pin;
step S3, tool placement: and lifting the whole tool with the shaft part installed by using a lifting clamp, and placing the whole tool in the shaft furnace to enable the lifting seat to be located on a bearing ring in the shaft furnace.
The preheating temperature of the shaft part 7 is 450 ℃, and the preheating time is 2-4 h.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to further illustrate the principles of the utility model, and that various changes and modifications may be made without departing from the spirit and scope of the utility model, which is intended to be protected by the appended claims. The scope of the utility model is defined by the claims and their equivalents.
Claims (4)
1. The utility model provides a heat treatment shaft furnace single part built-in quenching frock, its characterized in that, includes jib (1), hanger seat (2), brace rod (4) and a pair of lifting claw (3), hanger seat (2) are discoid, through brace rod (4) and the jib (1) fixed connection who cup joints in the centre of a circle department above that, the installation of the bottommost of jib is a pair of lifting claw (3), set up concentric horizontal pinhole on lifting claw (3) respectively, alternate horizontal round pin (6) in the concentric horizontal pinhole, it is inboard to lie in position overlap joint rings (5) apex angle between two lifting claws (3) on horizontal round pin (6), rings (5) weld on axle part (7), hanger seat (2) are arranged in shaft furnace bearing ring.
2. The heat treatment shaft furnace single-part built-in quenching tool according to claim 1, wherein the top of the suspension rod (1) is provided with a step for a lifting tong to grab in and out of the furnace, the lifting seat (2) is connected with the suspension rod (1) through a support rib (4), and the support rib (4) is provided with a notch for mounting a shaft furnace air duct.
3. The built-in quenching tool for single parts of a heat treatment pit furnace as claimed in claim 1, wherein the lower part of the lifting ring (5) is fixed with the shaft part (7) by welding, and the length of the welding seam is 120-200 mm.
4. The heat treatment shaft furnace single-part built-in quenching tool as claimed in claim 1, wherein the top of the lifting ring (5) is in an inverted V shape, the vertex angle of the lifting ring is inserted between a pair of the lifting claws (3), the transverse pin (6) is inserted into the concentric transverse pin hole of the lifting claw (3), the inner side of the vertex angle of the lifting ring (5) is lapped on the transverse pin, and the inner side of the vertex angle of the lifting ring (5) is matched with the outer surface of the transverse pin (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122343565.8U CN216688248U (en) | 2021-09-27 | 2021-09-27 | Heat treatment pit furnace single part built-in quenching tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122343565.8U CN216688248U (en) | 2021-09-27 | 2021-09-27 | Heat treatment pit furnace single part built-in quenching tool |
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| Publication Number | Publication Date |
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| CN216688248U true CN216688248U (en) | 2022-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122343565.8U Active CN216688248U (en) | 2021-09-27 | 2021-09-27 | Heat treatment pit furnace single part built-in quenching tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113699354A (en) * | 2021-09-27 | 2021-11-26 | 南京中船绿洲机器有限公司 | Heat treatment pit furnace single part built-in quenching tool and assembly method |
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2021
- 2021-09-27 CN CN202122343565.8U patent/CN216688248U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113699354A (en) * | 2021-09-27 | 2021-11-26 | 南京中船绿洲机器有限公司 | Heat treatment pit furnace single part built-in quenching tool and assembly method |
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