CN203728913U

CN203728913U - Nitriding hanging tool

Info

Publication number: CN203728913U
Application number: CN201320755361.8U
Authority: CN
Inventors: 刘嵘峰; 王屹君
Original assignee: Hudong Heavy Machinery Co Ltd
Current assignee: Hudong Heavy Machinery Co Ltd
Priority date: 2013-11-26
Filing date: 2013-11-26
Publication date: 2014-07-23
Anticipated expiration: 2023-11-26

Abstract

The utility model discloses a nitriding hanging tool, comprising a hanger and a plurality of cross rods, wherein the hanger is a frame-shaped member and is composed of a hanging frame and a hanging ring which are fixedly connected; the hanging ring is located above the hanging frame; the hanging frame is provided with a plurality of locating holes which are horizontally arranged; the locating holes in each row are located on the same axis and are uniformly distributed; the plurality of cross rods respectively penetrate into the locating holes; the hanging tool is made of steel which is provided with a barrier-free nitrided coating on the surface. The nitriding hanging tool can be reused, can be used for ensuring the nitriding quality of a workpiece and achieving the beneficial effects of increasing the working efficiency, uniformly charging a furnace, shortenin preparation time, increasing the charging efficiency, reducing the labor intensity and reducing material consumption and is suitable for nitriding axostyle parts with holes, particularly FLEX pins for marine diesel engines.

Description

A kind of nitriding treatment hanger

Technical field

The utility model relates to the frock for part nitriding treatment, is specifically related to a kind of nitriding treatment hanger, belongs to heat treatment technics field.

Background technology

In order to strengthen intensity and the surface abrasion resistance of metal parts, nitriding treatment is conventional Technology means, and part affects the quality of part to a certain extent at the modes of emplacement of nitriding furnace.The for example pin of the FLEX on marine diesel, the shove charge state before nitrogenize has very large impact to its nitrogenize quality, first must ensure to keep certain interval between pin and pin, to avoid interval too small to cause atmosphere inequality; Secondly must ensure that part is in plumbness, to reduce the distortion producing under heating, keeping warm mode; Moreover leave damage or be infected with the spot that hinders nitrogenize at piece surface will avoid shove charge time; Finally to guarantee the firm of shove charge, prevent the situation that occurs that in nitridation process part drops, so the shove charge work of pin before nitrogenize is all the link that must be rigid in checking up all the time.

Traditional nitrogenize charging mode of FLEX pin is that operation master worker uses galvanized wire to penetrate in the hole on pin, ties up rear hanging in nitriding furnace.But this mode has many shortcomings:

1, there is one deck zinc coating on galvanized wire surface, and when nitrogenize is heated to certain temperature, zinc coating can melt, if the zinc of fusing is stained with piece surface, will form the zinc-plated film of one deck that hinders nitrogenize, forms the threat to part nitrogenize quality maximum; Therefore, must in advance galvanized wire be placed on to heat in stove, then with sand paper, the zinc coating sand on galvanized wire surface be gone, just can come into operation afterwards, thereby make setup time longer, but also energy expenditure outside amount.

2, bundle galvanized wire workload is large, need to consume a lot of time, and owing to being manual operations, therefore working efficiency is low, and labour intensity is larger.

3, galvanized wire has long has shortly, and pin hanging there will be height to differ in nitriding furnace, and position is difficult to ensure to be uniformly distributed, thus be unfavorable for furnace atmosphere evenly, affect nitriding result.

4, because pin deadweight is heavier, and galvanized wire can become fragile when nitrogenize, and therefore, in order to ensure that galvanized wire can not rupture midway, when shove charge, all must to use 2-3 root galvanized wire to tie up fixing for 3 pins of every string, thereby increased the consumption of galvanized wire; In addition, galvanized wire will become fragile after nitrogenize finishes, and can not continue to use, and therefore after each nitrogenize, can only abandon with the galvanized wire of crossing, and re-uses new galvanized wire next time and ties up, so the disposable use of galvanized wire has also caused the huge of galvanized wire consumption.

Utility model content

The purpose of this utility model is to overcome the deficiency of existing nitrogenize charging mode, a kind of nitriding treatment hanger is provided, had both ensured the nitrogenize quality of pin, can significantly reduce again shove charge setup time and machine material consumption, improve nitrogenize shove charge efficiency simultaneously, reduce labour intensity.

For achieving the above object, technical solution of the present utility model is as follows:

A kind of nitriding treatment hanger, it comprises suspension bracket and Duo Gen cross bar, described suspension bracket is frame shape member, it is by hanging frame and suspension ring are formed by fixedly connecting, these suspension ring are positioned at the top of described suspension frame, on this suspension frame, be provided with some horizontal pilot holes, each registration hole coaxial line and being uniformly distributed, described many cross bars are placed through respectively in this pilot hole.

Described hanger adopts the steel of surperficial without hindrance nitrogenize coating to make.

Described suspension bracket adopts the rod iron that diameter is 16mm to make, and described cross bar adopts the rod iron that diameter is 14mm to make.

Described pilot hole is provided with three rows, and each row amount is 3.

Compared with the mode of existing use galvanized wire, the beneficial effects of the utility model are:

1, used surface not hinder the steel manufacture of the coating of nitrogenize, not only ensure the nitrogenize quality of part, save again the set-up procedure of burning galvanized wire, sand papering, only need surperficial spot just be washed away and can be used with clean-out system, significantly reduce shove charge setup time, thereby improved work efficiency.

2, the pilot hole hanging on frame is uniformly distributed, and the hanging position of workpiece is also uniformly distributed, and has avoided the mass defect of the nitrogenize inequality that shove charge position inequality causes.

3, described nitriding treatment is sturdy and durable with hanger, and nitrogenize fragility can not impact hanger, thereby can reuse, and has greatly reduced disposable supplies consumption.

Brief description of the drawings

Fig. 1 is front view of the present utility model.

Fig. 2 is the front view that the utility model hangs frame.

Fig. 3 is the side-view of Fig. 2.

Fig. 4 is the schematic diagram of the utility model cross bar.

Embodiment

The utility model provides a kind of new nitriding treatment frock, for solving the defect that shove charge setup time is long, shove charge is inhomogeneous, frock cannot be reused, consumption is large, under the prerequisite providing safeguard for FLEX pin nitrogenize quality, can enhance productivity, cost efficiency.

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, but should not limit protection domain of the present utility model with this.

Refer to Fig. 1, diagram nitriding treatment comprises suspension bracket 1 and Duo Gen cross bar 2 with hanger, its steel that adopt surface not hinder nitrogenize coating are made, as 20# steel, thereby avoid zinc coating fusing after nitrogenize heating, form the zinc-plated film that hinders nitrogenize at piece surface, and affect the problem of part nitrogenize quality, and then saved the process of nitrogenize pre-treatment galvanized wire.Refer to Fig. 2 and Fig. 3, described suspension bracket 1 is frame shape member, adopts the rod iron that diameter is 16mm to make, and it is formed by connecting with suspension ring 12 by hanging frame 11; These suspension ring 12 are fixed on the top of described suspension frame 11, for being suspended in nitriding furnace; On this suspension frame 11, be provided with the pilot hole 13 that three row of horizontal are arranged, each registration hole 13 quantity is 3, their coaxial lines and being uniformly distributed.Refer to Fig. 4, it is that the rod iron of 14mm is made that described many cross bars 2 adopt diameter, be used for hanging nitrogenize workpiece, this cross bar 2 comprises the body of rod 21 and is fixedly connected on the positioning head 22 of these body of rod 21 one end, described many cross bars 2 penetrate the hole of workpiece, be then placed through respectively in the pilot hole 13 that hangs frame 11, thereby workpiece suspension is got up, pilot hole 13 and positioning head 22 have been fixed the position of workpiece suspension on suspension bracket 1, can avoid the inequality of workpiece shove charge position.

The method that uses the utility model to carry out nitrogenize shove charge to FLEX pin is as follows:

1. before shove charge, use clean-out system to clean suspension bracket 1 and cross bar 2, avoid the spot on suspension bracket 1 and cross bar 2 surfaces to pollute nitrogenize piece surface;

2. FLEX pin is gone here and there on cross bar 2, cross bar 2 is again through the pilot hole 13 of suspension bracket 1, and pin i.e. string hangs on suspension bracket 1;

3. whole hanger is hung in nitriding furnace, just complete nitrogenize shove charge operation.

The utility model can be reused, ensure the nitrogenize quality of workpiece, reached improve work efficiency, shove charge evenly, reduce setup time, improve shove charge efficiency, reduce labour intensity and reduce the beneficial effect of supplies consumption, be applicable to bar axial workpiece with holes, especially the nitrogenize of diesel engine for ship FLEX pin.

Claims

1. a nitriding treatment hanger, it is characterized in that: described hanger comprises suspension bracket and Duo Gen cross bar, described suspension bracket is frame shape member, it is by hanging frame and suspension ring are formed by fixedly connecting, these suspension ring are positioned at the top of described suspension frame, on this suspension frame, be provided with some horizontal pilot holes, each registration hole coaxial line and being uniformly distributed, described many cross bars are placed through respectively in this pilot hole.

2. nitriding treatment hanger according to claim 1, is characterized in that: described hanger adopts the steel of surperficial without hindrance nitrogenize coating to make.

3. nitriding treatment hanger according to claim 2, is characterized in that: described suspension bracket adopts the rod iron that diameter is 16mm to make, and described cross bar adopts the rod iron that diameter is 14mm to make.

4. nitriding treatment hanger according to claim 1, is characterized in that: described pilot hole is provided with three rows, each row amount is 3.