CN204277120U - A kind of Grinding wheel of trough of belt - Google Patents

Abstract

The utility model is to provide a kind of Grinding wheel of trough of belt, comprises wheel body, wheel bore and race, and described race is partially radially distributed on wheel body; The utility model, by partially processing some radial slit on former Grinding wheel, makes, by original single surfacing, to become surfacing and add grinding edge, greatly increases speed and the quality of polishing.

Description

A kind of Grinding wheel of trough of belt

Technical field

The utility model relates to a kind of milling tools, specifically a kind of Grinding wheel of trough of belt.

Background technology

Machine driving has constant power output, bearing capacity is large, rule rate is high, life-span is long, reliability is high, the advantages such as compact conformation, being widely used in various plant equipment and instrument and meter. gear drive is mechanically operated principal mode. gear is the basic part of machine, its quality, performance, the life-span directly affects the technical-economic index of complete machine, gear is complex-shaped because of it, technical problem is many, and manufacture difficulty is comparatively large, so gear manufacture level reflects the level of a national mechanical industry largely.Gear Manufacturing Technology is the technique of the crucial Gear Processing obtaining high-quality gear, because of gear structure shape, accuracy class, working condition can adopt different schemes, sum up the processing of tooth base, tooth Profile Machining, fine finishining four-stage after heat treatment and heat treatment. the processing of tooth base must ensure machining benchmark surface accuracy. heat treatment directly determines the inherent quality of the gear teeth, and the fine finishining after tooth Profile Machining and heat treatment is the key manufactured. also reflects the level of gear manufacture.Be used in the wind power generating set at the air port places such as high mountain, wilderness, seabeach, island, gear-box is the important mechanical part of in wind power generating set, its main function is that the power transmission that produced under wind-force effect by wind wheel makes it obtain corresponding rotating speed to generator, makes generating set that kinetic energy is converted to electric energy and exports.The rotating speed of usual wind wheel is very low, does not far reach the rotating speed required by electrical power generators, must be realized, therefore also gear-box is referred to as gearbox by the accelerating function of gear-box gear pair.The air port places such as high mountain, wilderness, seabeach, island are arranged on due to wind power generating set, by the wind-force effect of irregular break-in varying duty and the impact of strong gusts of wind, stand the impact of scorching summer and freezing winter and extreme difference in temperature throughout the year, in addition residing natural environment is had inconvenient traffic, gear-box is arranged in the small space of tower top, once break down, repair very difficult, therefore the requirement more much higher than common mechanical is proposed to its reliability and service life.The first stage of processing is the stage that tooth base enters machining at first.Transmission accuracy due to gear depends mainly on profile accuracy and tooth pitch distributing homogeneity, and the precision of the positioning datum adopted when this and cutting (hole and end face) has direct relation, so, this stage mainly prepares smart benchmark for next stage processing profile of tooth, makes the precision of the endoporus of tooth and end face substantially reach the technical requirement of regulation.At this stage except processing benchmark, for the processing of the minor surface beyond profile of tooth, also should be completed in the later stage of this one-phase as far as possible.Second stage is the processing of profile of tooth.For the gear not needing to quench, in the in general last process segment of this stage i.e. gear, the gear that just should process complete coincidence pattern requirement through this stage comes.For the gear needing to harden, the profile accuracy required by last fine finishining that can meet profile of tooth must be processed at this stage, so the processing in this stage is the critical stage ensureing Gear Processing precision.Should give and pay special attention to.Phase III is heat treatment stages.The main Quenching Treatment to the flank of tooth at this stage, makes the flank of tooth reach the hardness requirement of regulation.The final stage of processing is the finishing stage of profile of tooth.The object in this stage, is improve the profile of tooth distortion that corrected gear is caused after quenching profile accuracy further and reduce surface roughness, making it to reach final required precision.First tackle positioning reference plane (hole and end face) at this stage to repair, because quenching all can produce distortion with back-geared endoporus and end face, if directly adopt such hole and end face to carry out profile of tooth fine finishining as benchmark after quenching, it is the requirement being difficult to reach the accuracy of gear.Carry out profile of tooth fine finishining with trimmed datum level location, accurate positioning can be made reliable, allowance balance is also relatively evenly to reach accurately machined object.

The precision of positioning datum has direct impact to tooth Profile Machining precision.The tooth Profile Machining of axle type gear generally selects center hole to locate, the axle type gear more options gear axle journal of some large modulus and end face location.The tooth Profile Machining of dish cover type gear often adopts two kinds of positioning datums: 1) endoporus and end face regioselective be design basis measure again and the endoporus of reference for assembling as positioning datum, both " datum coincidence " principle was met, the process tolerances such as tooth Profile Machining can be made again unified, as long as strictly control inner hole precision, when special mandrel is located, do not need centering.Therefore productivity ratio is high, be widely used in producing by batch.2) cylindrical and end face positioning tooth base endoporus are installed on general mandrel, decide center, hole with centering cylindrical, therefore require that the circular runout of tooth base cylindrical to endoporus is little.Because centering efficiency is low, be generally used for jobbing work.In the technical process of Gear Processing, requisite operation is, the increment processing of gear, wherein has rounding, point, chamfered edge, and deburring etc.Gear after rounding, point, easily enters engagement when sliding axially.Chamfered edge can remove the sharp edge of increment, and these sharp edges are very crisp after carburizing and quenching, easily burst apart in gear drive.Carry out increment rounding with milling cutter, during rounding, milling cutter makes reciprocally swinging (often processing a tooth reciprocally swinging once) along circular arc while High Rotation Speed.After processing a tooth, workpiece radially exits, and sends the next increment of processing after calibration again to.

In sum, Gear Processing is that cold working and hot-working intersect the technical process of the complexity of carrying out, commonly use with regard to heat treatment step with regard to gear, conventional has: annealing, quenching, surface hardening, carburizing, quenching, modified, normalizing, tempering, high tempering etc.Steel billet is carrying out, in the process of heating and cooling, certainly leading to irregular stress and deformation repeatedly.In order to ensure the Accuracy of finish of gear, various clamping apparatus must be designed, it is placed under repair, correcting and limit or as positioning datum.In cold working and hot worked process, can produce burr and remaining knurl, remove them must through row polishing.In order to improve speed and the quality of polishing, must constantly improve through row instrument used, wherein Grinding wheel is exactly an example.

Summary of the invention

The purpose of this utility model is: the Grinding wheel providing the trough of belt that a kind of speed of polishing is fast, quality is high, solves the speed and quality problems that improve polishing.

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

A Grinding wheel for trough of belt, comprises wheel body, wheel bore and race, and described race is partially radially distributed on wheel body; Described well width of taking turns is 1 ~ 2 millimeter, and wheel slot length equals 1/2L, and L is by following formulae discovery: L=(D-d)/2, the wherein diameter of d-wheel bore, the external diameter of D-wheel body.

The technical solution of the utility model partially processes some radial slit on former Grinding wheel, makes Grinding wheel by original single surfacing, becomes surfacing and add grinding edge, greatly increase speed and the quality of polishing.

Accompanying drawing explanation

Fig. 1, this figure are a kind of structure diagrams of Grinding wheel of trough of belt,

Wherein there are wheel body 1, wheel bore 2, race 3.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.

Embodiment one

See accompanying drawing 1, this figure is a kind of structure diagram of Grinding wheel of trough of belt, wherein has wheel body 1, wheel bore 2, race 3.The width of race 3, length and quantity are determined according to processing request.

Machined four races in this example, its width is 1 ~ 2 millimeter, and length equals 1/2nd L, and L is by following formulae discovery:

L=(D-d)/2, the wherein diameter of d-wheel bore 2, the external diameter of D-wheel body 1.

Claims (1)

1. a Grinding wheel for trough of belt, is characterized in that, comprises wheel body, wheel bore and race, and described race is partially radially distributed on wheel body; Described well width of taking turns is 1 ~ 2 millimeter, and wheel slot length equals 1/2L, and L is by following formulae discovery: L=(D-d)/2, the wherein diameter of d-wheel bore, the external diameter of D-wheel body.