CN2049157U

CN2049157U - Planetary tooth-rolling milling machine

Info

Publication number: CN2049157U
Application number: CN 89210343
Authority: CN
Inventors: 刘相华; 崔健忠
Original assignee: Yan Wengong Feng Sufan
Current assignee: Yan Wengong Feng Sufan
Priority date: 1989-04-13
Filing date: 1989-04-13
Publication date: 1989-12-13

Abstract

The utility model discloses revolving moulding equipment of metal working, in particular to a new processes of manufacture, a new moulding process and novel equipment of gears. Past main method of producing and processing the gears is cutting processing, which wastes metal primary materials with low production efficiency and poor mechanical properties of the gears. A die with a rising tooth wedge is arranged at the external part of an active sun roller, and the inner side of the die adopts a datum surface which combines a circular arc and a spline curve. The utility model has the advantages of simple structure, low cost, low cost, first-in, economizing metal primary materials, high production rate and good production quality of the gears.

Description

Planetary tooth-rolling milling machine

The utility model relates to the new manufacturing method of the rotoforming equipment, particularly gear of stress metal processing, new moulding process and novel device.

The main method of past production and processing gear is a machining, as milling or planing etc., this production method waste raw material metal, production efficiency is low, processing a gear often needs a few hours even a couple of days, in addition, because machining has been cut off the fiber of metal, influenced the intensity and the service life of gear, this traditional production and processing method does not satisfy the needs of modern industry development.

The utility model purpose is to replace traditional gear working method with a kind of novel tooth machine that rolls according to new operation principle design, to improve working conditions, enhances productivity and workpiece quality.

The utility model is by roll, the mould circle, frame, transmission mechanism is formed, sun discaling roll initiatively 1 has 3 to 5 groups of mould circles 3 that play tooth wedge 2 with the inboard and is installed in on a pair of frame 4, the two ends of discaling roll are equipped with rolling bearing 5, be provided with shaping ring cavity 6 between discaling roll 1 and the mould circle 2, cradle 8 is connected with cradle adjusting device 9, and be positioned at the bottom of feed inlet and outlet, cradle adjusting device 9 is fixed on the frame 4, discharging guide plate 10 links to each other with Material collecting box for harvesting 11, and become 10～20 degree inclination angles with the feed inlet and outlet horizontal direction, and at mould circle two ends spacing ring 15 being installed, frame 4 is fixed on the rail chair 13 by bolt 12, four jiaos of frames are continuous with pull bar 14, the driving end of sun roller links to each other with motor 7 with planetary reducer 17 and by motor output shaft by common shaft coupling 16, the inboard datum level that adopts circular arc and SPL combination of mould circle, and every group of height that plays the tooth wedge increases successively from the feeding side of feed inlet and outlet.

The utlity model has simple, the reliable operation of structural principle, the Gear Production process equipment is simplified, the production efficiency height, and it is low to make this equipment cost, and the gear product quality of producing is well and can save raw material metal.

Accompanying drawing 1 is sun roller of the present utility model and mould circle fragmentary cross-sectional view.

Accompanying drawing 2 is the utility model structure chart.

Accompanying drawing 3 plays tooth forming wedge schematic diagram for the utility model.

Below in conjunction with accompanying drawing the utility model is described further.The Vladimir Smirnov of the Soviet Union etc. had once been developed dual roll type and had been rolled the tooth machine, but this dual roll type rolls quite complexity of tooth machine structure, the equipment heaviness, needing very complicated blank is installed and feed mechanism, the equipment manufacturing cost height, and two be convex surface between roller and the rolled piece and contact, and is unfavorable for the Accurate Shaping of the flank of tooth, and this tooth machine that rolls is not applied in China.The operation principle of the utility model gear rooling mill is different with gear production process always, its main feature is the fixed die circle that has had the tooth wedge with the sun discaling roll of an active and inboard, do planetary motion in the shaping ring cavity of circular blank between discaling roll and mould circle, be subjected to plaing on the mould circle effect that is pressed into of tooth wedge in the system tooth process, progressively form the gear teeth, and before discharging, obtain shaping processing, obtain needed size and dimension.Structure of the present utility model and operation principle provide in the accompanying drawings, the sun discaling roll of an active has 3 to 5 groups of mould circles that play the tooth wedge with the inboard and is installed in on a pair of frame, rolling bearing is equipped with at the two ends of discaling roll, between discaling roll and mould circle, form a shaping ring cavity, blank is after cradle rolls into the inlet of shaping ring cavity by gravity, on the blank circumference, extrude equally spaced location impression by the increment on the discaling roll, utilize the cradle adjusting device to adjust the feeding angle and the position of cradle, so that the tooth wedge that rises on the location impression of blank surface and the mould circle meets, blank revolves round the sun around sun discaling roll under the effect of sun discaling roll on the one hand, produces the rotation with sun discaling roll direction of rotation on the other hand.In this process, be subjected to being engraved in several groups of effects that are pressed into that play the tooth wedge of increasing gradually of mould circle inboard, progressively form the gear teeth, in order to guarantee the reasonability of forming process, the inboard datum level that adopts circular arc and SPL combination of mould circle, the SPL section is mainly in order to obtain process of press in comparatively uniformly, arc section is mainly in order to carry out shaping to the gear teeth that are shaped substantially, to obtain more accurate tooth surface shape, size and surface smoothness, the rolled piece of finishing above-mentioned process rolls into Material collecting box for harvesting by the discharging guide plate of gravity through having 10～20 degree inclination angles, synchronization can have a plurality of blanks rolling on the diverse location of shaping ring cavity, thereby its production process is continuous, efficiently.The utility model can the monomer gear rolling when rolling spur gear, also can be conjuncted side by side rolling with several gears, cut into the monomer gear again after shutting out the gear teeth.During rolling helical gear, be with the incline direction that two gears make tooth side by side opposite method binary is rolling, to overcome axial force, is cut into two helical gears after rolling.Plaing a part under the tooth wedge, the forming process of the gear teeth provides in Fig. 3, wherein R ₀Be the initial inside diameter of mould circle, the 1st group of mould circle internal diameter that plays tooth wedge place is R ₁By that analogy, the 2nd, 3,4 groups of mould circle internal diameters that play tooth wedge place are R ₂, R ₃, R ₄Rise the tooth wedge in the progressively process of press in of tooth root and metal in the progressively flow process of tooth top, tooth depth progressively increases, and forms the first type of the gear teeth, through the shaping wedge it is further processed at last, finishing reaches desired tooth surface shape, size and surface smoothness.The utility model can be used for producing various spur gears, helical gear and herringbone bear etc.The utility model is considered and is originally rolled the needs that each parts of tooth machine are installed, fixed and change, frame is by being bolted on the rail chair, four jiaos of frames are continuous with pull bar, laterally string is moving in the shaping ring cavity in order to prevent blank, spacing ring is equipped with at two ends at the mould circle, the driving end of sun discaling roll is linked to each other with planetary reducer by common shaft coupling, and the operation of rolling does not need speed governing, so adopt alternating current generator to drag.

The comparable machining of production efficiency of the present utility model improves tens times even hundred times, and the processing cost expense of gear is greatly reduced. Gear blank and the way of contact of mould circle are that male and female face joins, the Accurate Shaping that is conducive to gear, metal fibrous tissue in the gear is not cut off, and the effect of crystal grain thinning arranged, the technical indicators such as fatigue limit, wearability and mechanical strength of gear are improved, production equipment is quite simple, makes the utility model small investment.

Claims

1, planet rolls the tooth machine, be by roll, the mould circle, frame, transmission mechanism is formed, it is characterized in that active sun discaling roll 1 has 3 to 5 groups of mould circles 3 that play tooth wedge 2 with the inboard and is installed in on a pair of frame 4, the two ends of discaling roll are equipped with rolling bearing 5, between discaling roll 1 and the mould circle 2 shaping ring cavity 6 is arranged, cradle 8 is connected with cradle adjusting device 9, and be positioned at the bottom of feed inlet and outlet, cradle adjusting device 9 is fixed on the frame 4, discharging guide plate 10 links to each other with Material collecting box for harvesting 11, and become 10～20 degree inclination angles with the charging aperture horizontal direction, at mould circle two ends spacing ring 15 is installed, frame 4 is fixed on the rail chair 13 by bolt 12, and four jiaos of frames are continuous with pull bar 14, the driving end of sun roller links to each other with planetary reducer 17 by common shaft coupling 16, is dragged by motor 7.

2, roll the tooth machine according to the described planet of claim 1, it is characterized in that the inboard datum level that adopts circular arc and SPL combination of mould circle, every group of height that plays the tooth wedge increases successively from the feeding side of feed inlet and outlet.