RU2576107C1 - Screw-nut mechanism - Google Patents

Screw-nut mechanism Download PDF

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Publication number
RU2576107C1
RU2576107C1 RU2014149488/11A RU2014149488A RU2576107C1 RU 2576107 C1 RU2576107 C1 RU 2576107C1 RU 2014149488/11 A RU2014149488/11 A RU 2014149488/11A RU 2014149488 A RU2014149488 A RU 2014149488A RU 2576107 C1 RU2576107 C1 RU 2576107C1
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RU
Russia
Prior art keywords
screw
nut
grooves
working surface
direct contact
Prior art date
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RU2014149488/11A
Other languages
Russian (ru)
Inventor
Николай Петрович Дядченко
Original Assignee
Николай Петрович Дядченко
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Publication date
Application filed by Николай Петрович Дядченко filed Critical Николай Петрович Дядченко
Priority to RU2014149488/11A priority Critical patent/RU2576107C1/en
Application granted granted Critical
Publication of RU2576107C1 publication Critical patent/RU2576107C1/en

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Abstract

FIELD: machine building.
SUBSTANCE: invention relates to mechanical engineering, and more specifically to mechanisms for converting of rotational motion into translational motion and vice versa. Mechanism comprises a screw-nut pair, on working surfaces of which grooves are executed formed on a screw line. Cylindrical or conical portion of nut threaded working surface has no direct contact with screw threaded working surface. To prevent direct contact a nut helical groove is packed with replacement spring made of more wear resistant material than nut and screw, which serves as intermediate body between screw and provided with helical grooves with depth of up to half diameter of spring wire. Screw grooves of nut may have a multiple-entry execution.
EFFECT: enhancing of functionality is achieved.
2 cl

Description

Изобретение относится к механизмам для преобразования вращательного движения в поступательное и наоборот.The invention relates to mechanisms for converting rotational motion into translational and vice versa.

Известен (см., например, Атлас конструкций узлов и деталей машин / Б.А. Байков и др. - М.: Издательство МГТУ им. Н.Э. Баумана, 2007. - 384 с. (стр. 203-205)) механизм винт-гайка, содержащий пару винт и гайка, на рабочих поверхностях которых выполнены канавки на винтовой линии.Known (see, for example, Atlas of constructions of units and parts of machines / B.A. a screw-nut mechanism containing a pair of screw and nut, on the working surfaces of which grooves are made on a helical line.

Недостаток известных механизмов винт-гайка состоит в неоправданной сложности исполнения и реконструкции резьбы пары винт-гайка при больших диаметрах в резьбовой части.A disadvantage of the known screw-nut mechanisms is the unjustified complexity of the execution and reconstruction of the thread of the screw-nut pair with large diameters in the threaded part.

Для устранения отмеченного недостатка в механизме винт-гайка, содержащем пару винт и гайка, на рабочих поверхностях которых выполнены канавки на винтовой линии, цилиндрическая или коническая часть рабочей поверхности гайки не имеет прямого контакта с рабочей поверхностью винта, для чего в винтовую канавку гайки уложена сменная пружина из более износостойкого материала, чем материал гайки и винта, служащая промежуточным телом между винтом и гайкой, снабженными винтовыми канавками глубиной до половины диаметра проволоки пружины. При этом винтовые канавки гайки с уложенными пружинами могут иметь многозаходное исполнение.To eliminate the noted drawback in the screw-nut mechanism, containing a pair of screw and nut, on the working surfaces of which grooves are made on the helical line, the cylindrical or conical part of the working surface of the nut does not have direct contact with the working surface of the screw, for which a removable screw is installed in the nut groove a spring made of a more wear-resistant material than the nut and screw material, which serves as an intermediate body between the screw and the nut, provided with helical grooves up to half the diameter of the spring wire. In this case, the screw grooves of the nut with the springs laid can be multi-way.

В зависимости от области применения и требуемой точности сопряжения пары винт-гайка сменная пружина может быть многожильной (см., например, Детали машин. Сборник материалов по расчету и конструированию. В 2-х книгах. Кн. II. М.: Машгиз, 1953, стр. 238-241), делая крупногабаритный механизм винт-гайка рациональным по конструкции и технологии.Depending on the application and the required accuracy of pairing the screw-nut pair, the replaceable spring can be multi-core (see, for example, Machine parts. Collection of materials for calculation and design. In 2 books. Prince II. M. Mashgiz, 1953 , pp. 238-241), making the large screw-nut mechanism rational in design and technology.

Таким образом, предлагаемое техническое решение, по мнению заявителя, является новым, имеет изобретательский уровень и промышленно применимо, упрощая технологию исполнения и реконструкции резьбы пары винт-гайка, расширяя функциональные возможности механизма винт-гайка.Thus, the proposed technical solution, according to the applicant, is new, has an inventive step and is industrially applicable, simplifying the technology of execution and reconstruction of the thread of a screw-nut pair, expanding the functionality of the screw-nut mechanism.

Claims (2)

1. Механизм винт-гайка, содержащий пару винт и гайка, на рабочих поверхностях которых выполнены канавки на винтовой линии, отличающийся тем, что цилиндрическая или коническая часть рабочей поверхности гайки не имеет прямого контакта с рабочей поверхностью винта, для чего в винтовую канавку гайки уложена сменная пружина из более износостойкого материала чем материал гайки и винта, служащая промежуточным телом между винтом и гайкой, снабженными винтовыми канавками глубиной до половины диаметра проволоки пружины.1. The screw-nut mechanism, containing a pair of screw and nut, on the working surfaces of which grooves are made on a helical line, characterized in that the cylindrical or conical part of the working surface of the nut does not have direct contact with the working surface of the screw, for which the nut is laid in the screw groove interchangeable spring made of a more wear-resistant material than the nut and screw material, which serves as an intermediate body between the screw and the nut, provided with helical grooves up to half the diameter of the spring wire. 2. Механизм винт-гайка по п. 1, отличающийся тем, что винтовые канавки гайки с уложенными пружинами могут иметь многозаходное исполнение. 2. The screw-nut mechanism according to claim 1, characterized in that the screw grooves of the nut with the springs installed can be multi-way.
RU2014149488/11A 2014-12-08 2014-12-08 Screw-nut mechanism RU2576107C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2014149488/11A RU2576107C1 (en) 2014-12-08 2014-12-08 Screw-nut mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2014149488/11A RU2576107C1 (en) 2014-12-08 2014-12-08 Screw-nut mechanism

Publications (1)

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RU2576107C1 true RU2576107C1 (en) 2016-02-27

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RU2014149488/11A RU2576107C1 (en) 2014-12-08 2014-12-08 Screw-nut mechanism

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU529320A1 (en) * 1975-04-02 1976-09-25 Витебский Станкоинструменталный Завод Имени С.М.Кирова Ball screw of a pair with multiple thread
US7337690B1 (en) * 2002-02-26 2008-03-04 Raytheon Company Leadscrew assembly with a wire-wound leadscrew and a spring-pin engagement of a drive nut to the leadscrew
CN101230875A (en) * 2007-12-18 2008-07-30 苏州江南嘉捷电梯股份有限公司 Screw connection structure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU529320A1 (en) * 1975-04-02 1976-09-25 Витебский Станкоинструменталный Завод Имени С.М.Кирова Ball screw of a pair with multiple thread
US7337690B1 (en) * 2002-02-26 2008-03-04 Raytheon Company Leadscrew assembly with a wire-wound leadscrew and a spring-pin engagement of a drive nut to the leadscrew
CN101230875A (en) * 2007-12-18 2008-07-30 苏州江南嘉捷电梯股份有限公司 Screw connection structure

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