CN219117532U - Planet wheel integral carburizing heat treatment tool - Google Patents

Abstract

The utility model relates to the technical field of heat treatment tools, in particular to an integral carburizing heat treatment tool for a planet wheel, which comprises a bottom tool and an interval tool, wherein the bottom tool is arranged at the bottom of a planet wheel at the lower layer, the bottom tool comprises a base and a support base, a plurality of sliding grooves are formed in the base, support columns are arranged on the support base, and the support base slides in the sliding grooves and is fixed through pins; the interval frock is arranged in between two-layer planet wheel about, the interval frock includes support cylinder and connecting rib, support cylinder distributes and forms protruding structure from top to bottom on the connecting rib. The utility model can reduce the contact point and contact area of the product and the tool, carry out integral carburizing and quenching, improve the surface hardness and wear resistance of the whole planet wheel, especially the end surface, and improve the service capacity and quality of the product.

Description

Planet wheel integral carburizing heat treatment tool

Technical Field

The utility model relates to the technical field of heat treatment tools, in particular to a planet wheel integral carburizing heat treatment tool.

Background

The carburizing and quenching can improve the carbon content of the surface layer of the part, and the surface layer can obtain higher hardness after quenching, and the core part still keeps certain strength and higher toughness. The planetary gear is used as an important part of high-speed running in a gear box, and the quality of the planetary gear is important. The hardness of the whole surface layer of the planet wheel, especially the hardness of the end surface, can be improved through integral carburizing and quenching, so that the whole surface layer of the part has higher wear resistance. At present, the planet wheel mainly adopts local carburizing heat treatment, namely the tooth part and the inner hole are carburized, the end face and the threaded hole adopt seepage prevention protection, and the seepage prevention part of the end face of the planet wheel is placed on a flat large-area cushion block tool when the planet wheel is carburized and charged, so that the carburizing heat treatment operation is carried out. The heat treatment charging mode enables the cushion block to be attached to the end face of the planet wheel in a large area, and the integral carburization requirement cannot be met.

Disclosure of Invention

The utility model solves the problem that the requirement of integral carburization cannot be met by adopting a cushion block tool for charging in the related art, and provides the integral carburization heat treatment tool for the planet wheels, which can reduce the contact point and the contact area of products and the tool, carry out integral carburization quenching, improve the integral planet wheels, particularly the surface hardness and the wear resistance of the end surfaces, and improve the service capacity and the quality of the products.

In order to solve the technical problems, the utility model is realized by the following technical scheme: a planet wheel integral carburizing heat treatment tool, comprising:

the bottom tooling is arranged at the bottom of the lower-layer planet wheel and comprises a base and a supporting base, a plurality of sliding grooves are formed in the base, supporting columns are arranged on the supporting base, and the supporting base slides in the sliding grooves and is fixed through pins;

the interval frock is arranged between the upper layer of planet wheel and the lower layer of planet wheel, the interval frock comprises a support cylinder and a connecting rib, and the support cylinder is distributed on the connecting rib to form an upper-lower protruding structure.

The pit furnace tooling frame comprises a pit furnace tooling hanging rod, a pit furnace tooling tray and a pit furnace tooling chassis, wherein the pit furnace tooling hanging rod is respectively connected with the pit furnace tooling tray and the pit furnace tooling chassis, and the bottom tooling is arranged on the pit furnace tooling tray and the pit furnace tooling chassis.

The multi-purpose furnace tool frame comprises a multi-purpose furnace chassis and a fence, wherein a plurality of inserted bars are arranged on the multi-purpose furnace chassis, and the fence is enclosed on the inserted bars; the bottom tool is arranged on the chassis of the multipurpose furnace.

Compared with the prior art, the utility model has the beneficial effects that:

(1) The tool can reduce the contact point and the contact area of the product and the tool, and can improve the overall hardness and wear resistance of the planet wheel, especially the surface of the end surface, and the service capacity and quality of the product;

(2) When the tool is used, the contact point between the support point of the support column and the planet wheel avoids the working surface, so that the carburization effect of the working end surface is ensured; meanwhile, as the supporting point area of the supporting column is small, the contact area is small, and the contact position is complemented by the adjacent carburization, the whole carburization is realized, namely, the carburization effect is complemented by diffusing the periphery of the contact point to the contact point part after carburization;

(3) The supporting base of the bottom tool and the pin on the supporting base can be disassembled for recycling, and meanwhile, the supporting base can be matched with the sliding groove to be applicable to planetary gears with different diameters and similar workpieces in structure; in addition, the base section area of the bottom tool is large, the contact area between the base and the heat treatment charging chassis is increased, and the stability of the bottom tool can be improved.

(4) The spacing tool is fixed on the support cylinder through the connecting ribs, so that the stability of the tool can be improved, and the tool is not easy to deform; the cross section area of the connecting ribs is small, so that atmosphere circulation is facilitated; in addition, by using the interval tool, the planetary gears can be overlapped up and down at intervals, so that the heat treatment charging quantity is greatly increased, and the production efficiency is improved.

Drawings

FIG. 1 is a top view of a bottom tooling of the present utility model;

FIG. 2 is a cross-sectional view of the bottom tooling of the present utility model;

FIG. 3 is a front view of the bottom tooling of the present utility model;

FIG. 4 is a top view of the spacer tool of the present utility model;

FIG. 5 is a front view of the spacer tool of the present utility model;

FIG. 6 is a schematic view of the structure of the present utility model for shaft furnace charging;

fig. 7 is a schematic view of the structure of the present utility model for charging a multipurpose furnace.

In the figure:

1. chute, 2, support column, 3, base, 4, pin, 5, support base, 6, support cylinder, 7, connecting rib, 8, pit furnace frock jib, 9, pit furnace frock tray, 10, pit furnace frock chassis, 11, multipurpose furnace frock inserted link, 12, multipurpose furnace frock rail, 13, multipurpose furnace frock chassis.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

Example 1

This embodiment will be described with respect to a shaft furnace charging example.

As shown in fig. 1 to 6, a planet wheel integral carburizing heat treatment tool comprises a bottom tool and an interval tool, wherein the bottom tool is arranged at the bottom of a lower layer of planet wheel, and the interval tool is arranged between an upper layer of planet wheel and a lower layer of planet wheel.

The bottom tool comprises a base 3 and a support base 5, wherein 3 sliding grooves 1 are formed in the base 3 at equal intervals, support columns 2 are welded on the support base 5, the support base 5 slides in the sliding grooves 1 and is fixed through pins 4, specifically, pin holes are formed in the support base 5, a plurality of pin holes are formed in the sliding grooves 1, so that the distance between the center of the circle of the support columns 2 on the support base 5 and the center of the circle of the base 3 can be adjusted to adapt to planetary gears with different sizes; the interval frock includes support cylinder 6 and connecting rib 7, and support cylinder 6 distributes and forms protruding structure from top to bottom on connecting rib 7.

Wherein, base 3, support column 2, pin 4 and support cylinder 6 adopt heat-resistant steel.

When the pit furnace is charged, a pit furnace tool frame is used, the pit furnace tool frame comprises a pit furnace tool hanging rod 8, a pit furnace tool tray 9 and a pit furnace tool chassis 10, the pit furnace tool chassis 10 is arranged at the bottom, the pit furnace tool tray 9 is positioned above the pit furnace tool chassis 10, one end of the pit furnace tool hanging rod 8 penetrates through the pit furnace tool chassis 10 to be fixed, then penetrates out of the pit furnace tool tray 9, and the bottom tool is arranged on the pit furnace tool tray 9 and the pit furnace tool chassis 10.

Example 2

This embodiment will be described by taking a multi-purpose furnace charging as an example.

As shown in fig. 1 to 5 and 7, a planet integral carburizing heat treatment tool comprises a bottom tool and a spacing tool, wherein the bottom tool is arranged at the bottom of a lower layer of planet, and the spacing tool is arranged between an upper layer of planet and a lower layer of planet.

The bottom tool comprises a base 3 and a supporting base 5, wherein 3 sliding grooves 1 are formed in the base 3 at equal intervals, supporting columns 2 are welded on the supporting base 5, the supporting base 5 slides in the sliding grooves 1 and is fixed through pins 4, specifically, pin holes are formed in the supporting base 5, and a plurality of pin holes are formed in the sliding grooves 1, so that the distance from the supporting columns 2 to the circle center can be adjusted to adapt to planetary gears with different sizes; the interval frock includes support cylinder 6 and connecting rib 7, and support cylinder 6 distributes and forms protruding structure from top to bottom on connecting rib 7.

Wherein, base 3, support column 2, pin 4 and support cylinder 6 adopt heat-resistant steel.

When the multipurpose furnace is charged, the multipurpose furnace tool frame is used, the multipurpose furnace tool frame comprises a multipurpose furnace tool chassis 13 and a multipurpose furnace tool rail 12, a plurality of multipurpose furnace tool inserting rods 11 are arranged on the multipurpose furnace tool chassis 13, and the multipurpose furnace tool rail 12 is enclosed on the multipurpose furnace tool inserting rods 11; the bottom tooling is arranged on a multipurpose furnace tooling chassis 13.

The above is a preferred embodiment of the present utility model, and a person skilled in the art can also make alterations and modifications to the above embodiment, therefore, the present utility model is not limited to the above specific embodiment, and any obvious improvements, substitutions or modifications made by the person skilled in the art on the basis of the present utility model are all within the scope of the present utility model.

Claims (3)

1. Planet wheel whole carburization heat treatment frock, its characterized in that includes:

the bottom tooling is arranged at the bottom of the lower-layer planet wheel and comprises a base (3) and a supporting base (5), wherein a plurality of sliding grooves (1) are formed in the base (3), supporting columns (2) are arranged on the supporting base (5), and the supporting base (5) slides in the sliding grooves (1) and is fixed through pins (4);

the interval frock is arranged between the upper layer of planet wheel and the lower layer of planet wheel, the interval frock comprises a supporting cylinder (6) and a connecting rib (7), and the supporting cylinder (6) is distributed on the connecting rib (7) to form an up-down protruding structure.

2. The planet wheel integral carburizing heat treatment tool according to claim 1, wherein: still include pit furnace frock frame, pit furnace frock frame includes pit furnace frock jib (8), pit furnace frock tray (9) and pit furnace frock chassis (10), pit furnace frock jib (8) link to each other with pit furnace frock tray (9) and pit furnace frock chassis (10) respectively, on pit furnace frock tray (9) and pit furnace frock chassis (10) are arranged in to the bottom frock.

3. The planet wheel integral carburizing heat treatment tool according to claim 1, wherein: the multipurpose furnace tool frame comprises a multipurpose furnace tool chassis (13) and a multipurpose furnace tool fence (12), a plurality of multipurpose furnace tool inserting rods (11) are arranged on the multipurpose furnace tool chassis (13), and the multipurpose furnace tool fence (12) is enclosed on the multipurpose furnace tool inserting rods (11); the bottom tool is arranged on a multipurpose furnace tool chassis (13).

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