Carburizing treatment bracket for metal device

Abstract

According to the carburizing treatment bracket for the metal device, a plurality of bearing frames are arranged on the periphery of a middle shaft in the axial direction, each bearing frame is fixed to the position opposite to the middle shaft through a supporting ring, a hoisting base and a bottom plate are fixedly installed at the two ends of the middle shaft respectively, and external traction equipment drags the middle shaft, the bearing frames and the bottom plate through the hoisting base; the bottom plate can make contact with the furnace bottom of the carburizing furnace, a to-be-treated part is detachably installed on the bearing frame, and a plurality of penetrating holes are evenly distributed in the middle shaft in the axial direction and used for fixing the relative positions of the supporting ring and the lifting base. According to the carburizing treatment bracket for the metal device, the relative positions of the bearing frames can be fixed through the supporting rings, a plurality of bearing frames can be arranged on the middle shaft so that production efficiency can be improved, the distance between every two bearing frames can be adjusted through the supporting rings so that the carburizing treatment bracket can be matched with different parts, production quality is improved, and the carburizing treatment bracket is suitable for popularization and application. The bracket is wide in application range and high in utilization rate, and the production cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of heat treatment of metal parts, and particularly relates to a carburizing treatment bracket for metal devices. Background Technique

[0002] Carburizing treatment refers to a chemical heat treatment process in which a steel part is heated and held in a carburizing medium to make carbon atoms penetrate into the surface layer in order to increase the carbon content in the surface layer of the steel part and form a certain carbon concentration gradient. The principle of carburizing treatment is to produce active carbon atoms through the decomposition of a carbon source. After the active carbon atoms are absorbed by the surface of the steel part, they dissolve into the surface austenite, increasing the carbon content in the austenite. When the carbon content on the surface increases, a concentration difference appears between the surface and the core. The carbon on the surface then diffuses into the interior. In the prior art, when carburizing treatment is carried out on parts, in order to improve production efficiency, the parts need to be stacked on the bracket one by one, and then the whole bracket is hoisted into the carburizing furnace. In order to prevent the parts from falling, the parts need to be simply fixed on the bracket, which results in different brackets being applicable to different parts, and it is necessary to prepare various specifications of brackets, resulting in high production costs and low utilization rate of a single bracket. Summary of the Invention

[0003] In view of this, the utility model aims to provide a carburizing treatment bracket for metal devices to solve the problems of single function, small range of adaptable parts, and low utilization rate of the bracket in the prior art.

[0004] To achieve the above object, the technical solution of the utility model is realized as follows:

[0005] A carburizing treatment bracket for metal devices includes a central shaft, a bearing bracket, a bottom plate, a hoisting seat and a support ring. A number of bearing brackets are arranged along the axial direction on the periphery of the central shaft. Each bearing bracket is fixed in its relative position with the central shaft through a support ring. And hoisting seats and bottom plates are respectively fixedly installed at both ends of the central shaft. An external traction device pulls the central shaft, the bearing brackets and the bottom plate through the hoisting seat, and the bottom plate can contact the bottom of the carburizing furnace. The parts to be processed are detachably installed on the bearing brackets. The central shaft is evenly distributed with a plurality of through holes along the axial direction, and the through holes are used to fix the relative positions of the support ring and the hoisting seat.

[0006] Further, the support ring is provided with a first fixing hole, and the hoisting seat is provided with a second fixing hole. The periphery of the fixing pin is located in the first fixing hole and a through hole to fix the relative position of the support ring and the central shaft. The periphery of the fixing pin is located in the second fixing hole and a through hole to fix the relative position of the hoisting seat and the central shaft. And the inner diameter of the support ring is larger than the outer diameter of the central shaft, and the outer diameter of the support ring is larger than the inner diameter of the bearing bracket.

[0007] Further, the bottom plate is in a frustum structure, and the outer diameter of the large-diameter end of the bottom plate is smaller than the inner diameter of the carburizing furnace.

[0008] Further, a plurality of abutting columns are arranged along the circumference at the lower end of the bottom plate, and the lower end of each abutting column is an arc structure.

[0009] Further, the supporting bracket is an annular frame structure, and a plurality of limiting tubes are arranged on the supporting bracket. The lower end or the upper end periphery of the part to be processed is sleeved into the limiting tubes.

[0010] Further, a first air passing hole is arranged on the side wall of the limiting tube.

[0011] Further, an adapter seat is detachably installed in the limiting tube. The cross section of the adapter seat is a T-shaped structure. The adapter seat is installed in the limiting tube, and a limiting platform is arranged on the adapter seat. A limiting groove is arranged at the upper end of the limiting tube, and the limiting platform is installed in the limiting groove.

[0012] Further, the inner diameter of the limiting tube is larger than the outer diameter of the adapter seat, and a second air passing hole is arranged on the side wall of the adapter seat. An installation hole is arranged in the middle of the adapter seat. The lower end or the upper end periphery of the part to be processed is sleeved into the installation hole.

[0013] Compared with the prior art, the carburizing treatment bracket for metal devices of the present utility model has the following beneficial effects:

[0014] (1) For the carburizing treatment bracket for metal devices of the present utility model, the relative position of the supporting bracket can be fixed through the support ring, and a plurality of supporting brackets can be arranged on the central axis to improve production efficiency. The distance between two adjacent supporting brackets can also be adjusted through the support ring to ensure the use of different parts and improve production quality. The bracket has a wide application range, high utilization rate, and reduces production costs.

[0015] (2) For the carburizing treatment bracket for metal devices of the present utility model, the lifting seat is disassembled and assembled through the fixing pin and the relative position of each support ring is fixed, which is convenient for the staff to adjust the number of supporting brackets and the relative distance between two adjacent supporting brackets. The disassembly and assembly are fast and the use is convenient.

[0016] (3) For the carburizing treatment bracket for metal devices of the present utility model, the bottom plate is a frustum structure. The bottom plate of the frustum structure is convenient for guiding the bracket into the permeation furnace. A plurality of abutting columns are arranged along the circumference at the lower end of the bottom plate, and the lower end of each abutting column is an arc structure. The contact area between the bottom plate and the bottom of the permeation furnace is reduced through the arc-shaped abutting column, preventing the problem that the bottom plate adheres to the permeation furnace, which is inconvenient for hoisting, or the bracket hoisting swings due to adhesion, thereby damaging the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0018] Figure 1 Structural schematic diagram of a carburizing treatment bracket for a metal device according to an embodiment of the present utility model;

[0019] Figure 2 Structural schematic diagram of a support ring according to an embodiment of the present utility model;

[0020] Figure 3 Structural schematic diagram of a bearing bracket according to an embodiment of the present utility model;

[0021] Figure 4 Structural schematic diagram of an adapter seat provided on a limit tube according to an embodiment of the present utility model;

[0022] Figure 5 Structural schematic diagram of the adapter seat according to an embodiment of the present utility model.

[0023] Explanation of reference numerals:

[0024] 1 - Central axis; 11 - Through hole; 2 - Bearing bracket; 3 - Base plate; 31 - Contact post; 4 - Lifting seat; 5 - Support ring; 51 - Fixed pin; 6 - Limit tube; 61 - Limit groove; 62 - First through hole; 7 - Adapter seat; 71 - Limit platform; 72 - Second through hole. Detailed implementation manners

[0025] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments may be combined with each other.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] The present utility model will be described in detail below with reference to the drawings and in conjunction with embodiments.

[0029] As Figures 1 - 5 shown, a carburizing treatment bracket for metal devices includes a central shaft 1, a supporting bracket 2, a bottom plate 3, a lifting seat 4, and a support ring 5. A plurality of supporting brackets 2 are arranged along the axial direction on the periphery of the central shaft 1. Each supporting bracket 2 is fixed in relative position with the central shaft 1 through a support ring 5. The two ends of the central shaft 1 are respectively fixedly installed with a lifting seat 4 and a bottom plate 3. An external traction device pulls the central shaft 1, the supporting bracket 2, and the bottom plate 3 through the lifting seat 4, and the bottom plate 3 can contact the bottom of the carburizing furnace. Parts to be processed are detachably installed on the supporting bracket 2. A plurality of through holes 11 are evenly distributed along the axial direction on the central shaft 1, and the through holes 11 are used to fix the relative positions of the support ring 5 and the lifting seat 4. The relative positions of the supporting brackets 2 can be fixed through the support ring 5, and a plurality of supporting brackets 2 can be arranged on the central shaft 1 to improve production efficiency. The distance between two adjacent supporting brackets 2 can also be adjusted through the support ring 5 to ensure adaptation to the use of different parts and improve production quality. This bracket has a wide application range, high utilization rate, and reduces production costs.

[0030] The support ring 5 is provided with a first fixing hole, and the lifting seat 4 is provided with a second fixing hole. The periphery of the fixing pin 51 is located in the first fixing hole and one through hole 11 to fix the relative position of the support ring 5 and the central shaft 1. The periphery of the fixing pin 51 is located in the second fixing hole and one through hole 11 to fix the relative position of the lifting seat 4 and the central shaft 1. The inner diameter of the support ring 5 is larger than the outer diameter of the central shaft 1, and the outer diameter of the support ring 5 is larger than the inner diameter of the supporting bracket 2. The lifting seat 4 is disassembled and installed through the fixing pin 51 and the relative positions of each support ring 5 are fixed, which is convenient for workers to adjust the number of supporting brackets 2 and the relative distance between two adjacent supporting brackets 2. The disassembly and assembly are fast and the use is convenient.

[0031] The bottom plate 3 is in a frustum structure. The outer diameter of the large-diameter end of the bottom plate 3 is smaller than the inner diameter of the carburizing furnace. The frustum-structured bottom plate 3 facilitates the introduction of the bracket into the permeation furnace. A plurality of abutting columns 31 are arranged circumferentially at the lower end of the bottom plate 3, and the lower end of each abutting column 31 is an arc structure. The contact area between the bottom plate 3 and the bottom of the permeation furnace is reduced through the arc-shaped abutting columns 31, preventing the problem that the bottom plate 3 adheres to the permeation furnace, which is inconvenient for hoisting, or the bracket swings during hoisting due to adhesion, thus damaging the parts.

[0032] The carrier bracket 2 is of an annular frame structure. A plurality of limiting tubes 6 are arranged on the carrier bracket 2. The lower end or the upper end periphery of the part to be processed is sleeved into the limiting tube 6. For example, when the part is located between two carrier brackets 2, the relative positions of the part can be defined by the limiting tubes 6 above and below the part respectively, ensuring the stable installation of the part. The side wall of the limiting tube 6 is provided with a first air passing hole 62, and the first air passing hole 62 is used for flowing the carbon source, so as to carburize the part located inside the limiting tube 6, improving the carburizing efficiency and carburizing quality of the part.

[0033] An adapter seat 7 is detachably installed in the limiting tube 6. The adapter seat 7 is an auxiliary structure for improving the adaptability of the limiting tube 6 to the part. When the outer diameter of the part is small, the part can be limited by the adapter seat 7. And the cross section of the adapter seat 7 in this embodiment is a T-shaped structure, so as to facilitate the installation of the adapter seat 7 into the limiting tube 6. And a limiting platform 71 is arranged on the adapter seat 7, and a limiting groove 61 is arranged at the upper end of the limiting tube 6. The limiting platform 71 is installed in the limiting groove 61 to prevent the adapter seat 7 from rotating synchronously with the limiting tube 6. In this embodiment, the inner diameter of the limiting tube 6 is larger than the outer diameter of the adapter seat 7, and the side wall of the adapter seat 7 is provided with a second air passing hole 72, and the second air passing hole 72 is used for flowing the carbon source. An installation hole is arranged in the middle of the adapter seat 7, and the lower end or the upper end periphery of the part to be processed is sleeved into the installation hole.

[0034] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A carburizing treatment bracket for metal devices, characterized in that: It includes a central shaft (1), a support bracket (2), a bottom plate (3), a lifting seat (4) and a support ring (5). A number of support brackets (2) are arranged along the axial direction on the periphery of the central shaft (1). Each support bracket (2) fixes its relative position with the central shaft (1) through a support ring (5). The two ends of the central shaft (1) are respectively fixedly installed with a lifting seat (4) and a bottom plate (3). An external traction device traction the central shaft (1), the support bracket (2) and the bottom plate (3) through the lifting seat (4), and the bottom plate (3) can contact the bottom of the carburizing furnace. A part to be processed is detachably installed on the support bracket (2). The central shaft (1) is evenly distributed with a plurality of through holes (11) along the axial direction, and the through holes (11) are used to fix the relative positions of the support ring (5) and the lifting seat (4).

2. The carburizing treatment bracket for a metal device according to claim 1, characterized in that: The support ring (5) is provided with a first fixing hole, the lifting seat (4) is provided with a second fixing hole. The periphery of the fixing pin (51) is located in the first fixing hole and a through hole (11) to fix the relative position of the support ring (5) and the central shaft (1). The periphery of the fixing pin (51) is located in the second fixing hole and a through hole (11) to fix the relative position of the lifting seat (4) and the central shaft (1). The inner diameter of the support ring (5) is larger than the outer diameter of the central shaft (1), and the outer diameter of the support ring (5) is larger than the inner diameter of the support bracket (2).

3. The carburizing treatment bracket for a metal device according to claim 1, wherein: The bottom plate (3) is a frustum structure, and the outer diameter of the large-diameter end of the bottom plate (3) is smaller than the inner diameter of the carburizing furnace.

4. The carburizing treatment bracket for a metal device according to claim 1, characterized in that: A plurality of abutting columns (31) are arranged along the circumferential direction at the lower end of the bottom plate (3), and the lower end of each abutting column (31) is an arc structure.

5. The carburizing treatment bracket for a metal device according to claim 1, characterized in that: The support bracket (2) is an annular frame structure, and a plurality of limiting tubes (6) are arranged on the support bracket (2). The lower end or the upper end periphery of the part to be processed is sleeved into the limiting tube (6).

6. The carburizing treatment bracket for a metal device according to claim 5, characterized in that: The side wall of the limiting tube (6) is provided with a first air passing hole (62).

7. The carburizing treatment bracket for a metal device according to claim 5, characterized in that: An adapter seat (7) is detachably installed in the limiting tube (6). The cross section of the adapter seat (7) is a T-shaped structure. The adapter seat (7) is installed in the limiting tube (6), and a limiting platform (71) is arranged on the adapter seat (7). A limiting groove (61) is arranged at the upper end of the limiting tube (6), and the limiting platform (71) is installed in the limiting groove (61).

8. The carburizing treatment bracket for a metal device according to claim 7, characterized in that: The inner diameter of the limiting tube (6) is larger than the outer diameter of the adapter seat (7), and the side wall of the adapter seat (7) is provided with a second air passing hole (72). An installation hole is arranged in the middle of the adapter seat (7). The lower end or the upper end periphery of the part to be processed is sleeved into the installation hole.

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