Carburizing furnace for carburizing surface of screw

Abstract

The utility model discloses a carburizing furnace for carburizing the surface of a screw, which comprises a furnace body in the shape of a rotary column, the top of the furnace body is provided with a furnace mouth, the top of the furnace body is rotatably connected with an outer gear ring which is coaxially arranged, the outer gear ring is arranged outside the furnace body, the outer gear ring is meshed with a driving gear, and the driving gear is meshed with the furnace mouth. The driving gear is in transmission connection with a power assembly for controlling the driving gear to rotate, the inner side of the outer gear ring is provided with an inner ring for partially shielding the furnace mouth, the inner ring is provided with a special-shaped arm extending into the furnace mouth, the special-shaped arm is provided with a knife rest which extends up and down and is close to the inner wall of the furnace body, and the knife rest is provided with a scraper with a cutting edge attached to the inner wall of the furnace body. The carburizing furnace has the characteristics of automatic ash removal and good carburizing effect, and is complete in overall function and high in practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat treatment equipment technical field more specifically, it relates to a carburizing furnace for screw surface carburizing. BACKGROUND

[0002] Carburizing furnace for fastener screw carburizing is easy to accumulate ash in the inner wall after using for a certain period of time, needs cleaning in time, otherwise influences subsequent carburizing, and the overall effect is poor, accordingly, the utility model provides a carburizing furnace for screw surface carburizing. UTILITY MODEL CONTENTS

[0003] The utility model discloses a carburizing furnace for screw surface carburizing, which has the characteristics of automatic ash removal and good carburizing effect.

[0004] To solve the above technical problems, the utility model aims at realizing as follows: a carburizing furnace for screw surface carburizing, which comprises a rotary cylindrical furnace body, a furnace mouth is formed in the top of the furnace body, an outer gear ring is coaxially arranged on the top of the furnace body, the outer gear ring is arranged outside the furnace body, a driving gear is engaged with the outer gear ring, a power assembly is drivingly connected to the driving gear, the inner side of the outer gear ring is provided with an inner ring that partially blocks the furnace mouth, a special-shaped arm is arranged in the furnace mouth, the special-shaped arm is provided with a tool holder that extends upward and downward and is close to the inner wall of the furnace body, and a scraper is arranged on the tool holder and abuts against the inner wall of the furnace body.

[0005] The utility model is further provided as follows: the number of the special-shaped arms is not less than one, and the special-shaped arms are arranged in an annular array around the axis of the inner ring.

[0006] The utility model is further provided as follows: the included angles between the adjacent two special-shaped arms are equal.

[0007] The utility model is further provided as follows: the special-shaped arm comprises a vertical arm that extends along the axial direction of the furnace body, two horizontal arms that extend along the radial direction of the furnace body, one end of the horizontal arm is connected to the vertical arm, and the other end of the horizontal arm is connected to the tool holder.

[0008] The utility model is further provided as follows: the top of the furnace body is provided with an annular guide rail, an annular guide groove that matches the annular guide rail is formed in the outer gear ring, and the annular guide rail is slidingly connected in the annular guide groove.

[0009] The utility model is further provided as follows: the power assembly comprises a motor that is fixed to the furnace body.

[0010] In conclusion, the screw surface carburizing carburizing furnace of the utility model has the following beneficial effects: the screw surface carburizing carburizing furnace of the utility model drives the scraper to scrape and clean the accumulated ash on the inner wall of the furnace through mechanism transmission, prevents ash accumulation, has good carburizing effect, is perfect in overall function and high in practicality. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is the overall structure schematic view of the utility model;

[0012] Figure 2 is the overall structure schematic view of the utility model. DETAILED DESCRIPTION

[0013] In order to make the skilled in the art better understand the technical scheme of the utility model, the preferred implementation scheme of the utility model is described below in combination with specific embodiments, but it should be understood that these descriptions are only for further illustrating the features and advantages of the utility model, and are not the limitation of the utility model patent claims. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0014] The utility model is further illustrated below in combination with the drawings and preferred embodiments.

[0015] Embodiment 1

[0016] Referring to Figure 1 and Figure 2 , the screw surface carburizing carburizing furnace of the utility model, including the furnace body 1 of the rotary column, the furnace body 1 top is provided with the furnace mouth 2, the furnace body 1 top rotationally connected with the outer gear ring 3 of the coaxial line arrangement, the outer gear ring 3 is arranged at the outside of the furnace body 1, the outer gear ring 3 is engaged with the driving gear 4, the driving gear 4 is drivingly connected with the power assembly of control rotation, and the power assembly includes the motor 5 fixed on the furnace body, the inner side of the outer gear ring 3 has the inner ring 31 of partially shielding the furnace mouth, the inner ring 31 is provided with the special-shaped arm 6 that extends into the furnace mouth, the special-shaped arm 6 is provided with the knife rest 7 that extends up and down and is close to the inner wall of the furnace body, and the knife rest 7 is provided with the scraper 8 with the blade mouth abutting the inner wall of the furnace body.

[0017] Further, the number of the special-shaped arm 6 is not less than one, and the special-shaped arm 6 is arranged in an equidistant angular annular array around the axis of the inner ring 31.

[0018] Further, the special-shaped arm 6 includes a vertical arm 61 extending along the axial direction of the furnace body, and two horizontal arms 62 extending along the radial direction of the furnace body, one end of the horizontal arm 62 is connected to the vertical arm 61, and the other end of the horizontal arm 62 is connected to the knife rest 7.

[0019] Further, the top of the furnace body 1 is provided with an annular guide rail 9, and the outer gear ring 3 is provided with an annular guide groove (not labeled) matched with the annular guide rail, and the annular guide rail 9 is slidably connected in the annular guide groove.

[0020] In the embodiment, by operating the motor 5, the driving gear 4 rotates, the engaged outer gear ring 3 is driven, the outer gear ring 3 carries the special-shaped arm 6 and the components thereon to rotate relative to the furnace body 1, and at the same time, the scraper 8 continuously scrapes the inner wall of the furnace to clean the inner wall.

[0021] In the embodiment, the special-shaped arm 6 is provided in a structure that includes a vertical arm 61 extending along the axial direction of the furnace body and two horizontal arms 62 extending along the radial direction of the furnace body. One horizontal arm 62 is arranged upward, and the other horizontal arm 62 is arranged downward. The horizontal arm 62 arranged downward can reinforce the connection between the vertical arm 61 and the tool holder 7, so that the bottom of the tool holder 7 can be suspended and stably moved.

[0022] In the embodiment, the annular guide rail 9 is matched with the annular guide groove, which plays a sliding guide role when the outer gear ring 3 rotates relative to the furnace body 1.

[0023] The screw surface carburizing carburizing furnace related to the utility model drives the scraper to scrape the inner wall of the furnace through mechanism transmission, cleans the accumulated ash left on the inner wall of the furnace, prevents ash accumulation, has good carburizing effect, perfect overall function, and high practicality.

[0024] In the utility model, if there are terms of "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, the orientation or positional relationship is based on the actual shown orientation or positional relationship, and is only for the convenience of describing the utility model and simplifying the description, and therefore the terms of describing the orientation or positional relationship in the utility model are only used for example description, and cannot be understood as the limitation of the patent, and the ordinary skilled in the art can understand the specific meaning of the above terms according to the specific situation and the embodiment.

[0025] Unless otherwise specified and limited, in the utility model, if there are terms of "setting", "connecting" and "connecting", they should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected, can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.

[0026] The preferred embodiments of the present application are described in detail above. It should be understood that those skilled in the art can make many modifications and changes without creative labor based on the concept of the present application. Therefore, any technical solutions obtained by logical analysis, reasoning or limited experiments based on the existing technology within the concept of the present application shall be within the protection scope defined by the claims.

Claims

1. A carburizing furnace for carburizing the surface of a screw, comprising a furnace body in the shape of a rotary column, a furnace mouth being formed in the top of the furnace body, characterized in that: The top of the furnace body is rotationally connected with an outer gear ring arranged in a coaxial line, the outer gear ring is arranged outside the furnace body, a driving gear is engaged with the outer gear ring, a power assembly for controlling rotation is drivingly connected with the driving gear, the inner side of the outer gear ring is provided with an inner ring for partially shielding the furnace mouth, a special-shaped arm is arranged on the inner ring and extends into the furnace mouth, a tool holder extending upward and close to the inner wall of the furnace body is arranged on the special-shaped arm, and a scraper with a blade abutting against the inner wall of the furnace body is arranged on the tool holder.

2. The carburizing furnace for screw surface carburizing according to claim 1, characterized by: The number of the special-shaped arms is not less than one, and the special-shaped arms are arranged in an annular array around the axis of the inner ring.

3. The carburizing furnace for screw surface carburizing according to claim 2, characterized by: The interval angle between adjacent two special-shaped arms is equal.

4. A carburizing furnace for carburizing screw surfaces according to any one of claims 1 to 3, characterized in that: The special-shaped arm comprises a vertical arm extending along the axial direction of the furnace body and two horizontal arms extending along the radial direction of the furnace body, one end of the horizontal arm is connected with the vertical arm, and the other end of the horizontal arm is connected with the tool holder.

5. The carburizing furnace for screw surface carburizing according to claim 4, characterized by: The top of the furnace body is provided with an annular guide rail, an annular guide groove matching the annular guide rail is formed in the outer gear ring, and the annular guide rail is slidingly connected in the annular guide groove.

6. The carburizing furnace for screw surface carburizing according to claim 1, characterized by: The power assembly comprises a motor fixed on the furnace body.

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