Generating device based on friction drive for gear involute artifact with long-rolled path length by rolling method

Patent metadata

Field	Value
Publication number	US-12011748-B2
Application number	US-202117779696-A
Country	US
Kind code	B2
Filing date	Jun 30, 2021
Priority date	Jun 30, 2021
Publication date	Jun 18, 2024
Grant date	Jun 18, 2024

Abstract

A generating device based on friction drive for gear involute artifact with long-rolled path length by rolling method is proposes. The device includes a roller component, rail component and friction-driven component, wherein the roller component consists of a gear involute artifact with long rolled length, a mandrel, a multi-ball bearing for gear involute artifact, the base-circle plates, the parallel sleeves, a multi-ball bearing, the plain washers, the cross washers, and the locking nuts; the rail component consists of a foundation, a location baffle for base-circle plates, rails, the baffles, a location baffle for rail, copper washers, the connecting screws and the set screws of the rail; and the friction-driven component consists of a friction block, a motorized linear sliding table, a vertical sliding table, a vertical foundation and an adapter. It has good market application prospect and popularization value.

First claim

The invention claimed is:

1. A generating device based on friction drive for a gear involute artifact with long-rolled path length by a rolling method, wherein the device comprises a roller component, a rail component and a friction-driven component;
wherein the roller component consists of a gear involute artifact with long-rolled path length, a multi-ball bearing for the gear involute artifact, a mandrel, a left base-circle plate, a right base-circle plate, a left parallel sleeve, a right parallel sleeve, a left multi-ball bearing, a right multi-ball bearing, a left plain washer, a right plain washer, a left cross washer, a right cross washer, a left locking nut and a right locking nut; the mandrel is an axial installation datum of the roller component; a middle of the mandrel is a high-precision cylindrical surface and both ends of the mandrel have symmetrical fine thread; the left and right base-circle plates are located and installed on the both ends of the mandrel with the left and right multi-ball bearings and; the gear involute artifact with long-rolled path length is located and installed on the middle of the mandrel with the multi-ball bearing for the gear involute artifact; there is a clearance fit between the left parallel sleeve, right parallel sleeve and mandrel; in order to ensure an axial location accuracy of the left and right base-circle plates and the gear involute artifact, the ends of left and right parallel sleeves are respectively fitted and located on a datum end of the gear involute artifact with long-rolled path length; the other locating ends of the left and right parallel sleeves are respectively fitted and located on the end for axial location of the left and right base-circle plates; the left locking nut, the left cross washer, and the left plain washer for locking the end of the left base-circle plate are assembled on the mandrel in order from a left end of the mandrel to inside; the right locking nut, the right cross washer, and the right plain washer for locking the end of the right base-circle plate are assembled on mandrel in order from the right end of the mandrel to inside;
the rail component consists of a foundation, a left rail, a right rail, a left baffle, a right baffle, a location baffle for the left rail, a location baffle for the right rail and a location baffle for the base-circle plate; the structure of the foundation is of U-shaped, whose top surface of protruding structure is regarded as a locating surface of the left rail and the right rail; the left rail and the right rail are tensile bodies with a thin waist section, and a section shape of them is of a bilateral and up-and-down symmetry structure; the left rail is installed on the locating surface of the foundation by the left baffle and the location baffle for the left rail; the right rail is installed on the locating surface of the foundation by the right baffle and the location baffle for the right rail; the location baffle for the base-circle plate is installed on a platform, which is used to locate the foundation and the ends of the left rail and the right rail; the top surface of the left rail and the right rail is a working surface, and the roller component does a pure-rolling generating motion on the working surfaces of the left rail and the right rails; by adjusting the location of the gear involute artifact, the central axis of the left and right base-circle plates and the central axis of the gear involute artifact can be aligned; meanwhile the left and right lock nuts are synchronously tightened;
the friction-driven component consists of a friction block, a motorized linear sliding table, an adapter, a vertical sliding table and a vertical foundation; the friction block consists of a rigid friction block substrate and friction washers with larger friction coefficient; the friction block is installed on the motorized linear sliding table, and the friction washers are elastically pressed against the cylindrical surface of the left base-circle plate and the right base-circle plate respectively; the motorized linear sliding table is installed on the vertical sliding table with the adapter, and the vertical sliding table is installed on the vertical foundation, the vertical foundation is installed on the platform; the motorized linear sliding table drives the friction block, and then drives the roller component to do pure-rolling generating motion on the rail component by friction.

2. The generating device based on friction drive for the gear involute artifact with long-rolled path length by the rolling method according to claim 1 , wherein the section shape of the left rail and the right rail are wide rectangle, inverted trapezoid, narrow rectangle, trapezoid and wide rectangle from top to bottom; an included angle between a lateral slope surface of the left rail and the right rail and the top surface of the left rail and the right rail or the bottom surface of the left rail and the right rail is 60° to 80°; the connecting holes of the left rail and the right rail are uniformly distributed in a lateral middle rectangular area of the left rail and the right rail, which are used to connect the left rail and the right rail for synchronous machining and measuring.

3. The generating device based on friction drive for the gear involute artifact with long-rolled path length by the rolling method according to claim 1 , wherein the rail component also consists of washers, connecting screws and setscrews of rails; the left and right baffles and the location baffles for the left rail and the right rail are provided with a row of through holes and a row of screw holes for connection of the connecting screws and the setscrews of rails; in order to ensure the reliability of the left rail and the right rails location, the setscrews of rails apply force to the lateral slope of rail with copper washers, of which the horizontal component force make the left rail and the right rail to press the location baffles for the left rail and the right rail, the vertical component force make the left rail and the right rail to press the foundation.

4. The generating device based on friction drive for the gear involute artifact with long-rolled path length by the rolling method according to claim 1 , wherein the structure of the left and right base-circle plates is of an incomplete circle with the same size, which is convenient for reducing weight and processing the left and right base-circle plates; several holes are uniformly distributed on the middle web of the left and right base-circle plates for reducing weight; the left and right base-circle plates and are arranged symmetrically with two concentric cylindrical surfaces with equal diameter and an inner datum hole; one cylindrical surface of the base-circle plate is a datum cylindrical for generating, and the other cylindrical surface is used for friction drive; a center angle corresponding to the one cylindrical surface is 10% larger than the design generating angle corresponding to the roll path length of the gear involute artifact; a lateral datum is parallel to the central axis of the inner datum hole; when the roller component is assembled, the lateral datum of the left and right base-circle plates are coplanar.

5. The generating device based on friction drive for the gear involute artifact with long-rolled path length by the rolling method according to claim 1 , wherein the left and right tooth flanks of the gear involute artifact are of equal common line; a datum inner hole is used for radial location of the gear involute artifact with long-rolled path length; the datum ends are used for axial location of the gear involute artifact with long-rolled path length, which are parallel and perpendicular to the central axis of the datum inner hole; the datum cylindrical is a installation datum of the gear involut

Assignees

• Univ Dalian Tech

Inventors

• Ling siying
• Ling Ming
• Liu Xiangsheng
• Ren Honglin
• Yang Yang
• Wang Liding

Classifications

• B23F23/00

  Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines (accessories or equipment not restricted to gear-cutting machines B23Q) · CPC title

• B21B1/085 Primary

  Rail sections · CPC title

• B24B37/02 Primary

  designed for working surfaces of revolution · CPC title