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SU484345A1 - Roller screw mechanism - Google Patents

Roller screw mechanism

Info

Publication number
SU484345A1
SU484345A1 SU1965674A SU1965674A SU484345A1 SU 484345 A1 SU484345 A1 SU 484345A1 SU 1965674 A SU1965674 A SU 1965674A SU 1965674 A SU1965674 A SU 1965674A SU 484345 A1 SU484345 A1 SU 484345A1
Authority
SU
USSR - Soviet Union
Prior art keywords
screw
rollers
cams
nut
roller
Prior art date
Application number
SU1965674A
Other languages
Russian (ru)
Inventor
Владимир Георгиевич Беляев
Original Assignee
Московский станкоинструментальный институт
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Московский станкоинструментальный институт filed Critical Московский станкоинструментальный институт
Priority to SU1965674A priority Critical patent/SU484345A1/en
Application granted granted Critical
Publication of SU484345A1 publication Critical patent/SU484345A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
    • F16H25/2247—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers
    • F16H25/2252—Planetary rollers between nut and screw

Landscapes

  • Transmission Devices (AREA)

Description

1one

Изобретение относитс  к устройствам дл  преобразовани  вращательного движени  в поступательные и наоборот и может быть использовано в машиностроении.The invention relates to devices for converting rotary motion into translational and vice versa, and can be used in mechanical engineering.

Известны роликовые винтовые механизмы, содержащие винт, гайку, цилиндрические ролики с конусообразными торцами, расположенными между винтом и гайкой параллельно их оси, и кулачки. Кулачки выполнены с наклоннЪтми под одним углом к оси ролика и параллельными рабочими поверхност ми и взаимодействуют с конусообразными поверхност ми роликов. На боковой поверхности ролики имеют кольцевые выступы, взаимодействующие с кольцевыми выступами винта.Known roller screw mechanisms containing a screw, a nut, cylindrical rollers with tapered ends located between the screw and the nut parallel to their axis, and cams. The cams are made with inclinations at one angle to the axis of the roller and parallel working surfaces and interact with the cone-shaped surfaces of the rollers. On the side surface, the rollers have annular projections interacting with annular protrusions of the screw.

Цель изобретени  - уменьшить износ винта и роликов. Это достигаетс  тем, что рабочие поверхности кулачков выполнены конусообразными и встречно-направленными. Такое выполнение кулачков обеспечивает вывод роликов из контакта с винтом.The purpose of the invention is to reduce the wear of the screw and rollers. This is achieved by the fact that the cam surfaces are tapered and counter-directed. This embodiment of the Cam provides the output rollers out of contact with the screw.

На фиг. 1 изображен предлагаемый -механизм , продольный разрез; на фиг. 2 - поперечный разрез по А-А на фиг. 1.FIG. 1 shows the proposed mechanism, a longitudinal section; in fig. 2 is a cross-sectional view along A-A in FIG. one.

Роликовый винтовой механизм состоит из винта 1, гайки 2, цилиндрических роликов 3, взаимодействующих с винтом посредством кольцевых выступов 4, вход щих во впадины резьбы винта, сепаратора 5 и кулачков 6. Ролики на концах имеют конусы 7, а на торцах кулачков выполнены конусы 8. В гайке 2 дл - возврата роликов выполнен полукруглый паз а. Крепежные гайки 9 служат дл  креплени  кулачков, а прокладки 10 - дл  регулировани  рассто ни  между кулачками. Кулачки 6 зафиксированы в угловом положении щпонками П.. В гайке 9 установлены уплотнени  12. Во врем  работы механизма ролики 3 движутс  между винтом и гайкой. Проход  через наз а, ролики за счет своих конусов 7 поднимаютс  кон)сами 8 кулачков и вывод тс  из контактировани  с поверхностью винта 1. Это достигаетс  тем, что конусы 8 выполненыThe roller screw mechanism consists of screw 1, nuts 2, cylindrical rollers 3 interacting with the screw by means of annular projections 4 entering the screw thread hollows, separator 5 and cams 6. The rollers at the ends have cones 7, and cones 8 are made at the ends of the cams In the nut 2 for d - returning the rollers, a semicircular groove is made. The fastening nuts 9 serve to fasten the cams, and the pads 10 to adjust the distance between the cams. The cams 6 are fixed in the angular position by the tongues P. .. In the nut 9, seals 12 are installed. During the operation of the mechanism, the rollers 3 move between the screw and the nut. The passage through the valve is called, the rollers, by means of their cones 7, raise the 8 cams themselves and are removed from contact with the surface of the screw 1. This is achieved by the fact that the cones 8 are made

на некотором участке паза таким образом, что приближаютс  навстречу друг к другу.in some part of the groove in such a way that they approach each other.

После этого конусы 8 смещают ролик 3 в осевом направлении на один шаг, перенос  его над выступом резьбы винта, и сноваAfter that, the cones 8 move the roller 3 in the axial direction by one step, moving it over the protrusion of the screw thread, and again

опускают на винт I, удал  сь при этом друг от друга. Далее ролик 3 входит в рабочий контакт с виптом и гайкой.they are lowered onto the screw I, while being removed from each other. Next, the roller 3 is in working contact with the nut and nut.

Предмет изобретени Subject invention

2525

Роликовый винтовой механизм, содержащий винт, гайку, цилиндрические ролики с конусообразными торцами, расположенные между винтом и гайкой параллельно их оси, и кулачки с наклонными под одним УГЛОМ кRoller screw mechanism containing a screw, a nut, cylindrical rollers with tapered ends located between the screw and a nut parallel to their axis, and cams with inclined under one ANGLE to

33

оси ролика рабочими поверхност ми, установленные со стороны каждого из торцов роликов и взаимодействующие с их конусообразными поверхност ми, отличающийс roller axes by working surfaces mounted on each of the ends of the rollers and interacting with their cone-shaped surfaces, differing

тем, что, с целью уменьшени  износа винта и роликов, рабочие поверхности кулачков выполнены конусообразными и встречно-направленными .By the fact that, in order to reduce the wear of the screw and rollers, the cam surfaces are tapered and counter-directed.

SU1965674A 1973-10-17 1973-10-17 Roller screw mechanism SU484345A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1965674A SU484345A1 (en) 1973-10-17 1973-10-17 Roller screw mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1965674A SU484345A1 (en) 1973-10-17 1973-10-17 Roller screw mechanism

Publications (1)

Publication Number Publication Date
SU484345A1 true SU484345A1 (en) 1975-09-15

Family

ID=20566371

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1965674A SU484345A1 (en) 1973-10-17 1973-10-17 Roller screw mechanism

Country Status (1)

Country Link
SU (1) SU484345A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4375770A (en) * 1979-09-11 1983-03-08 La Technique Integrale, Societe Anonyme Francaise Releasable screw and nut bearing mechanism
US4648285A (en) * 1983-02-14 1987-03-10 Millipore Corporation Apparatus for converting rotational motion to linear motion
US4884466A (en) * 1986-12-23 1989-12-05 Bernard Duruisseau Screw with recirculated satellite rollers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4375770A (en) * 1979-09-11 1983-03-08 La Technique Integrale, Societe Anonyme Francaise Releasable screw and nut bearing mechanism
US4648285A (en) * 1983-02-14 1987-03-10 Millipore Corporation Apparatus for converting rotational motion to linear motion
US4884466A (en) * 1986-12-23 1989-12-05 Bernard Duruisseau Screw with recirculated satellite rollers

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