CN204828579U - There is combined special -shaped gear of metallic interlayer - Google Patents

Abstract

The utility model provides a there is combined special -shaped gear of metallic interlayer, technology is complicated during for solution prior art processing gear, process time is long, the processing degree of difficulty is big, technical defect such as processing cost height, the utility model provides a gear, especially, relate to be formed by stacking and the gear fill the clearance with the metal level of 12 special -shaped gear -type parts of thin slice of taking the tooth that quenches the multi -disc, thin slice dysmorphism gear -type part is the special -shaped gear -type's that quenches the foil who takes the tooth, multi -disc web gear shape part superposes into special -shaped gear mass each other, with spot welding fixed connection between each web gear shape part, there is the metal level on between the thin sheet part and the surface of special -shaped gear mass, reach the low cost, make the technological mesh of high physical properties gear fast.

Description

One has the combined special shape gear of metal sandwich

Technical field

The utility model relates to one the combined special shape gear of metal sandwich, that the gear shape part particularly relating to a kind of toothed thin slice 1/2 abnormity quenched by multi-disc is formed by stacking and fill dwell set mould assembly special shape gear with metal layer.

Background technique

Gear refers to, and wheel rim has tooth can engage the mechanical component transmitting motion and power continuously, the initial gear transmission of China was brought into use from the period of Three Kingdoms, started there is gear-driven record at B.C. 300 years abroad, therefore, gear transmission at mechanical field from ancient times with regard to extensive use.

Common gear can be divided into cross section to be circular gear, the non-circular special shape gear of tooth bar and cross section from outward appearance.

Conventional gear working method is generally divided into form copying and generating cutting, such as: gear hobbing machine gear hobbing process, milling machine Gear Milling, slotting machine Gear Shaping, cold forging machine forge the methods such as tooth processing, the processing of gear generator gear-shaping, the processing of accurate casting tooth, the processing of gear grinding machine roll flute, the processing of die casting machine casting tooth, gear shaving machine processing.

Such as: produce common straight toothed spur gear for form copyings such as gear hobbing machine gear hobbing process, milling machine Gear Milling, slotting machine Gear Shaping, the processing of gear generator gear-shaping, the processing of gear grinding machine roll flute, gear shaving machine processing, processing technology must have: → tempering that blanking → material forges (eliminate material fracture and pore) (reduce and cut difficulty) → outer garden profile and interior garden profile cut → line → calibration profiling Gear shape process → keyway processing → quenching → flank of tooth honing fine finishing → inspection → warehouse-in is carried out to each tooth.

Such as: forge the common straight toothed spur gear of tooth processing for cold forging machine, processing technology must have: (technique is loaded down with trivial details, slightly to forge Mould Machining.) → heating materials → forge processing → gear surface roughing → heat treatment → gear surface fine finishing → inspection → warehouse-in; Each mould can only produce the gear of a model.

Such as: for the common straight toothed spur gear of lost wax casting method precision casting tooth processing, processing technology must have: (technique is loaded down with trivial details, slightly for the processing of metal wax-pattern.) → wax-pattern is shaped, and (technique is loaded down with trivial details, slightly.) → sand mo(u)ld shaping → sand mo(u)ld dewaxing → metal melt → cast → the demoulding → sand removal → gear surface fine finishing → inspection → warehouse-in; Cast gear is generally not suitable for heat treatment process, and therefore, the strength of gear of production is little, generally can not heat treatment further, and each mould can only produce the gear of a model.

Such as: the common straight toothed spur gear of metallic dust die casting machine casting tooth processing is example, and processing technology must have: (technique is loaded down with trivial details, slightly for Mould Machining.) → metallic dust die casting machine casting tooth → gear surface fine finishing → inspection → warehouse-in; Cast gear is generally not suitable for heat treatment process, and therefore, the strength of gear of production is little, generally can not heat treatment further, and each mould can only produce the gear of a model.

In order to ensure physical accuracy and the mechanical strength of gear, no matter adopt above arbitrary processing method, all have that actual processing technology complexity, long processing time, difficulty of processing are large, processing cost high-technology defect, these technological deficiencies are more outstanding when production large gear.

Summary of the invention

The technical problem that the utility model solves is: complex process during in order to solve prior art processing profiled gear, long processing time, difficulty of processing are large, processing cost high-technology defect, a kind of special shape gear is provided, that the gear shape part particularly relating to a kind of toothed thin slice 1/2 abnormity quenched by multi-disc is formed by stacking and fill dwell set mould assembly special shape gear with metal layer, reach low cost, manufacture the technical purpose of high physical property special shape gear fast.

The technological scheme of the utility model technical solution problem is:

In order to reach technical purpose of the present utility model, the one that the utility model provides has the combined special shape gear of metal sandwich, comprises combined special-shaped gear mass, it is characterized in that: combined special-shaped gear mass is formed by stacking mutually by multi-disc sheet parts;

Described sheet parts is the toothed sheet parts of quenching;

Described sheet parts comprises the left half special shape gear part of thin slice, thin slice right half special shape gear part, first special shape gear part of thin slice, second special shape gear part of thin slice;

The left half special shape gear part of thin slice, the right half special shape gear part of thin slice are spliced into a kind of sheet parts of special shape gear cross section shape mutually, there is a hole at the center of the sheet parts formed, there is a square groove at the edge in hole, and square groove is the shape in 1/2 flat key cross section;

First special shape gear part of thin slice, second special shape gear part of thin slice are spliced into the sheet parts of another kind of special shape gear cross section shape mutually; There is a hole at the center of the sheet parts formed, and there is a square groove at the edge in hole, and square groove is the shape in 1/2 flat key cross section;

The left half special shape gear part of described thin slice, the right half special shape gear part of thin slice, first special shape gear part of thin slice, second special shape gear part of thin slice at least respectively there are two welding positions;

Two kinds of sheet parts alternately superpositions, multi-disc sheet parts is superimposed to design thickness mutually;

Described multi-disc sheet parts superposition, forms combined special-shaped gear mass, connects, soldering point at least two between multi-disc sheet parts with spot welding;

Hole after the superposition of multi-disc sheet parts is overlapped into axis hole;

Square groove after the superposition of multi-disc sheet parts is overlapped into keyway;

There is metal layer between each sheet parts of combined special-shaped gear mass and the surface of combined special-shaped gear mass;

Metal layer is selected from following any one: lead layer, tin layers, layers of copper, aluminium lamination.

Compare with current special shape gear, the Advantageous Effects that the utility model patent obtains is: by first being quenched by web gear shape part, then overall immersion metallic solution after formative gear, the single individuality of part is little, be convenient to quenching technical, be convenient to produce heavy parts, compared with prior art overall gear quenching technical, reduce the volume of hardening furnace, especially the large gear that thickness is large, during prior art quenching, warm-up time is very long just can make whole gear heat to the temperature required for quenching, therefore, web gear shape part carries out the technique of quenching, shorten warm-up time, be convenient to control of product quality, reduce the difficulty of quenching technical, between sheet parts and the surface of gear mass is all flexible metallic material, after stressed extruding, flexible metal can be extruded from the flank of tooth or simply remove, be convenient to control product design precision, do not affect tooth face hardness and flank of tooth physical parameter, add and adopt vacuum processing technology man-hour, vacuum state can discharge the gas in metallic solution, rapid pressure and fast decompression process hocket, metallic solution produces motion in gear mass, in accelerating gear body, air is discharged, make in gear mass finer and close, improve gear mass mechanical property, the utility model patent simplified processing process, shorten process time, reduce difficulty of processing, reach low cost, the technical purpose of the high physical property gear of quick manufacture, complex process when solving prior art machining gears, long processing time, difficulty of processing is large, processing cost high-technology defect, and produce the more outstanding above-mentioned technological deficiency of large gear, practicability is large.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is described in further detail.

Fig. 1: be the utility model schematic diagram.

Fig. 2: be the utility model thin slice 1/2 special-shaped part schematic diagram.

Fig. 3: arrangements of components method schematic diagram when being the utility model thin slice 1/2 special-shaped part production special shape gear.

1. combined special-shaped gear masses in figure, the left half special shape gear part of 1-16. thin slice, the right half special shape gear part of 1-17. thin slice, first special shape gear part of 1-18. thin slice, 1-19. thin slice second special shape gear part, 2. welding position.

Embodiment

Below in conjunction with specific embodiment, the utility model is described further, but the protection domain required by the utility model is not limited to the scope described by specific embodiment.

Example 1: as shown in Figure 1 to Figure 3, disclosed one has the combined special shape gear of metal sandwich, comprises combined special-shaped gear mass 1, it is characterized in that: combined special-shaped gear mass 1 is formed by stacking mutually by multi-disc sheet parts;

Described sheet parts is the toothed sheet parts of quenching;

Described sheet parts comprises the left half special shape gear part 1-16 of thin slice, thin slice right half special shape gear part 1-17, first special shape gear part of thin slice 1-18, second special shape gear part of thin slice 1-19;

The left half special shape gear part 1-16 of thin slice, the right half special shape gear part 1-17 of thin slice are spliced into a kind of sheet parts of special shape gear cross section shape mutually, there is a hole at the center of the sheet parts formed, there is a square groove at the edge in hole, and square groove is the shape in 1/2 flat key cross section;

First special shape gear part of thin slice 1-18, second special shape gear part of thin slice 1-19 are spliced into the sheet parts of another kind of special shape gear cross section shape mutually; There is a hole at the center of the sheet parts formed, and there is a square groove at the edge in hole, and square groove is the shape in 1/2 flat key cross section;

The left half special shape gear part 1-16 of described thin slice, thin slice right half special shape gear part 1-17, first special shape gear part of thin slice 1-18, second special shape gear part of thin slice 1-19 at least respectively there are two welding positions 2;

Two kinds of sheet parts alternately superpositions, multi-disc sheet parts is superimposed to design thickness mutually;

Described multi-disc sheet parts superposition, forms combined special-shaped gear mass 1, connects, soldering point at least two between multi-disc sheet parts with spot welding;

Hole after the superposition of multi-disc sheet parts is overlapped into axis hole;

Square groove after the superposition of multi-disc sheet parts is overlapped into keyway;

There is metal layer between each sheet parts of combined special-shaped the gear mass 1 and surface of combined special-shaped gear mass 1;

Metal layer is selected from following any one: lead layer, tin layers, layers of copper, aluminium lamination.

The process step of gear is as follows:

Step 1): sheet metal is machined into the left half special shape gear part 1-16 of toothed thin slice, thin slice right half special shape gear part 1-17, first special shape gear part of thin slice 1-18, second special shape gear part of thin slice 1-19;

Step 2): Quenching Treatment is carried out to the part after shaping;

Step 3): then by left for thin slice half special shape gear part 1-16, the right half special shape gear part 1-17 of thin slice is spliced into a kind of sheet parts of abnormity mutually, first special shape gear part of thin slice 1-18, second special shape gear part of thin slice 1-19 is spliced into the sheet parts of another kind of abnormity mutually, the mould that two kinds of sheet parts enter special shape gear shape carries out stacking splicing, the sheet parts of wherein a kind of abnormity is placed on the bottom of mould, form the sheet parts of orlop abnormity, then on the sheet parts of orlop abnormity, place the sheet parts of another kind of abnormity, then connect between the sheet parts of orlop abnormity and the sheet parts of last layer abnormity with spot welding, then on the sheet parts of above-mentioned last layer abnormity, put the sheet parts of another kind of abnormity again, connect between the sheet parts of the abnormity of the superiors with the sheet parts of the abnormity of relative lower one deck with spot welding again, two kinds of special-shaped sheet parts cyclic process reach special shape gear design thickness, form combined special-shaped gear mass 1,

Step 4): the inspection of semifinished product is carried out to described combined special-shaped gear mass 1, qualified combination special shape gear body 1 enters next step, defective combined special-shaped gear mass 1 is checked after entering the mould squeezing shaping of heteromorphic teeth wheel shape again, enters next step after qualified;

Step 5): then by the surperficial prefluxing of combinations thereof heteromorphic teeth wheel body 1;

Step 6): the combined special-shaped gear mass 1 then surface being coated with fluxing agent immerses metallic solution, and metallic solution is: plumbous liquid, tin liquor, copper liquid, copper alloy liquid, terne metal liquid or other soft aluminium alloys;

Step 7): then combined special-shaped gear mass 1 is taken out from metallic solution, carry out process for cooling;

Step 8): then carry out Checking of finished products by above-mentioned through cooled, qualified finished product warehouse-in, defective carry out the process of gear outer contour surface after again check, the finished product warehouse-in after qualified.

Add man-hour above-mentioned, in vacuum box, complete the effect that combined special-shaped gear mass 1 immerses metallic solution technique better;

In vacuum box, combined special-shaped gear mass 1 immerses metallic solution technique, close vacuum pump, open suction valve fast, make air inlet fast in vacuum box, by the time when vacuum box internal pressure and normal-pressure balance, cut out suction valve reopens vacuum pump and carries out negative-pressure ward, above-mentioned rapid pressure and fast decompression process hocket once, metallic solution produces motion in combined special-shaped gear mass 1, accelerate air in combined special-shaped gear mass 1 to discharge, make in combined special-shaped gear mass 1 finer and close, the mechanical property of raising.

Below by reference to the accompanying drawings mode of execution of the present utility model is explained in detail; but the utility model is not limited thereto; in the ken that person of ordinary skill in the field possesses; can also make a variety of changes under the prerequisite not departing from the utility model aim; person of ordinary skill in the field is from above-mentioned design; without performing creative labour, done all conversion, all drop within protection domain of the present utility model.

Claims (1)

1. there is the combined special shape gear of metal sandwich, comprise combined special-shaped gear mass (1), it is characterized in that: combined special-shaped gear mass (1) is formed by stacking mutually by multi-disc sheet parts;

Described sheet parts is the toothed sheet parts of quenching;

Described sheet parts comprises the left half special shape gear part (1-16) of thin slice, thin slice right half special shape gear part (1-17), first special shape gear part (1-18) of thin slice, second special shape gear part (1-19) of thin slice;

The left half special shape gear part (1-16) of thin slice, the right half special shape gear part (1-17) of thin slice are spliced into a kind of sheet parts of special shape gear cross section shape mutually, there is a hole at the center of the sheet parts formed, there is a square groove at the edge in hole, and square groove is the shape in 1/2 flat key cross section;

First special shape gear part (1-18) of thin slice, second special shape gear part (1-19) of thin slice are spliced into the sheet parts of another kind of special shape gear cross section shape mutually; There is a hole at the center of the sheet parts formed, and there is a square groove at the edge in hole, and square groove is the shape in 1/2 flat key cross section;

The left half special shape gear part (1-16) of described thin slice, the right half special shape gear part (1-17) of thin slice, first special shape gear part (1-18) of thin slice, second special shape gear part (1-19) of thin slice at least respectively there are two welding positions (2);

Two kinds of sheet parts alternately superpositions, multi-disc sheet parts is superimposed to design thickness mutually;

Described multi-disc sheet parts superposition, forms combined special-shaped gear mass (1), connects, soldering point at least two between multi-disc sheet parts with spot welding;

Hole after the superposition of multi-disc sheet parts is overlapped into axis hole;

Square groove after the superposition of multi-disc sheet parts is overlapped into keyway;

There is metal layer between each sheet parts of combined special-shaped gear mass (1) and the surface of combined special-shaped gear mass (1);

Metal layer is selected from following any one: lead layer, tin layers, layers of copper, aluminium lamination.