Gear

 

The invention relates to mechanical engineering and can be used in the spatial links between orthogonal intersecting axes for transmitting rotation and torque. In the gear tooth of the drive wheel 1 is made in the form of a single-turn helix with a cross isosceles trapezoidal profile in a normal round cross-section, while the tooth of the drive wheel is mated with the tooth 4 of the driven wheel 2 and has a step t of the screw is equal to the step of the driven wheel 2 on the diameter d, passing through the middle of the width of the ring gear b, and defined according to the following dependence:where t is the step in engagement; d - diameter through the middle of the width of the ring gear of the driven wheel; Z is the number of depressions of the driven wheel. The technical result is to create a spatial gears between single-turn-helix and a flat wheel with improved performance at the expense of rational choice of the parameters of the depressions of the flat wheel and transverse dimensions of the coils of the helix, the simplification of the manufacturing process of the transmission due to the refusal to use special gear cutting machines. 2 Il.

The analysis of the prior art in this field has shown that well-known gear closest in solving a technical problem and which is the prototype of the proposed technical solution containing follower wheel flat work surfaces, cavities between the teeth which is made radial, ravnokonechnymi and ravnopolochny, and a driving wheel with equally high tooth (RF patent No. 2193707, IPC F 16 N 55/00, 55/08).

The teeth of the drive and driven wheels can be cut by copying software CNC lathe or on a universal milling machine with the use of the dividing head and a fairly simple tool. This tool for cutting the driven wheel is normal douglasa cutter. Perhaps cutting depressions of the driven wheel single-turn worm milling cutter and the teeth of the drive wheel is a standard worm gear is precision cut on hobbing machine.

A disadvantage of the known gear is the inability to provide large gear ratios because of the increasing size.

The task of the invention is the creation of spatial gears between single-turn-helix and a flat wheel with improved operational x is iceida, simplification of the manufacturing process of the transmission due to the refusal to use special gear cutting machines.

This technical result is achieved by the fact that the tooth of the drive wheel equally high and is designed as a single-turn helix with a cross isosceles trapezoidal profile in a normal round cross-section, while the tooth of the drive wheel is mated with the tooth of the driven wheel and has a pitch equal to the step of the driven wheel on the diameter passing through the center of the width of the ring gear, and determined from the dependencies

where t is the step in mesh, d is the diameter passing through the center of the width of the ring gear of the driven wheel; Z is the number of depressions of the driven wheel.

The proposed solution is illustrated by drawings, where Fig.1 shows the transmission is in working engagement and cross-section And hollow tooth of the driven wheel; Fig.2 shows a view of the transmission above and section B of the tooth profile of the helix.

Gear consists of the drive wheel 1 and the driven wheel 2. The axis of rotation of the drive wheel and the driven wheel orthogonal intersecting, that is, the diameter d of the driven wheel 2 rotation axes cross at right angles. The leading wheel (helicoiled understood helical surface of constant step t. On the master wheel is equally high tooth 3 made in the form of a single-turn helix with a cross isosceles trapezoidal profile in a normal round cross-section (Fig.2). The slave wheel 2 are raznostoronie teeth 4 flat work surfaces, cavities between teeth made radial, ravnokonechnymi and ravnopolochny (Fig.2).

Gear works as follows.

Drive wheel 1 is meshed with a driven wheel 2, while the coil of the helix having a transverse profile of an isosceles trapezium, mates with the cavity of the tooth of the driven wheel 2 made in the form of an isosceles trapezium. Pair of profiles is the height of the teeth. Drive wheel 1 made in the form of a sleeve with an external coil or coil profiled on the shaft. Sprocket 1 rotates, causes the rotation of the follower wheel 2. For one revolution of the drive wheel follower wheel is rotated 1/Z (Z is the number of depressions of the flat wheel). Transmission is reversible, i.e., the rotation of the drive wheel can be both right-and left-handed. Torque applied to the shaft on which the drive wheel 1, and is removed from the shaft of the driven wheel 2.

The proposed design of the gear provides the Mer and others), the ease of manufacture and Assembly, the rejection of special equipment and use of lathes and milling machines.

Claims

Gear containing follower wheel flat work surfaces, cavities between the teeth which is made radial, ravnokonechnymi and ravnopolochny, and a driving wheel with equally high tooth, wherein the tooth of the drive wheel is made in the form of a single-turn helix with a cross isosceles trapezoidal profile in a normal round cross-section, while the tooth of the drive wheel is mated with the tooth of the driven wheel and has a pitch equal to the step of the driven wheel on the diameter passing through the center of the width of the ring gear, and is defined by the following dependencies:

where t is the step in engagement;

d - diameter through the middle of the width of the ring gear of the driven wheel;

Z is the number of depressions of the driven wheel.



 

Same patents:

The invention relates to the field of engineering, in particular to worm gear, methods and equipment for their manufacture

The invention relates to mechanical engineering and can be implemented in pump engineering turn out and compressor engineering, in particular in pumps and compressors positive displacement screw type and screw pumps for pumping of multiphase mixtures

The invention relates to toothed gerotor mechanisms and can be used in screw hydraulic motors for drilling oil and gas wells and pumps as working bodies

The invention relates to mechanical engineering, in particular to the profile of the tooth of gear for orbital gears

Helical gears // 2222738

Cylindrical gears // 2199046
The invention relates to the field of mechanical engineering

Gear // 2193707
The invention relates to mechanical engineering and can be used in the spatial links between orthogonal intersecting axes for transmitting rotation and torque

Cylindrical gears // 2191304
The invention relates to mechanical engineering and can be used for designing heavy-duty cylindrical gears of increased accuracy

Gearing // 2185554
The invention relates to mechanical engineering, in particular to gears

The invention relates to the units of machines and mechanisms designed to rotate products, having a cross section in the form of a regular polygon

The invention relates to mechanical engineering and can be implemented in pump engineering turn out and compressor engineering, in particular in pumps and compressors positive displacement screw type and screw pumps for pumping of multiphase mixtures

Gear planetary gear // 2233394
The invention relates to the field of engineering, namely, gear mechanical transmission, and allows to increase the load capacity of the transmission

Planetary gear // 2232320
The invention relates to planetary gear

The invention relates to toothed gerotor mechanisms and can be used in screw hydraulic motors for drilling oil and gas wells and pumps as working bodies

The invention relates to mechanical engineering, in particular to mechanical transmission, used in machines and devices

The invention relates to mechanical engineering, in particular to mechanical transmission, used in machines and devices

The invention relates to mechanical engineering, in particular to the profile of the tooth of gear for orbital gears

The invention relates to mechanical engineering, in particular to the crankcase gear boxes, angle gear

Drive // 2225958
The invention relates to mechanical engineering and can be used in drives automation systems motors, actuators, antennas, boosters, etc

The invention relates to equipment and can be used in General engineering and in the construction of servo drives, transmitting heavy loads (mechanisms rotate the turret tanks, infantry fighting vehicles, and others)
Up!