CN207687287U - Variable-ratio reciprocating screw rod - Google Patents

Variable-ratio reciprocating screw rod Download PDF

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Publication number
CN207687287U
CN207687287U CN201720821471.8U CN201720821471U CN207687287U CN 207687287 U CN207687287 U CN 207687287U CN 201720821471 U CN201720821471 U CN 201720821471U CN 207687287 U CN207687287 U CN 207687287U
Authority
CN
China
Prior art keywords
screw rod
reciprocating screw
guide sleeve
reciprocating
sliding equipment
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CN201720821471.8U
Other languages
Chinese (zh)
Inventor
沈根平
杨维忠
徐丹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU JIANGYIN SECONDARY SPECIALIZED SCHOOL
Original Assignee
JIANGSU JIANGYIN SECONDARY SPECIALIZED SCHOOL
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 JIANGSU JIANGYIN SECONDARY SPECIALIZED SCHOOL filed Critical JIANGSU JIANGYIN SECONDARY SPECIALIZED SCHOOL
Priority to CN201720821471.8U priority Critical patent/CN207687287U/en
Application granted granted Critical
Publication of CN207687287U publication Critical patent/CN207687287U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model is related to a kind of variable-ratio reciprocating screw rods, including reciprocating screw rod, sliding equipment, guide sleeve, support base and handwheel, the reciprocating screw rod is horizontally placed on support base, handwheel is installed on one end of reciprocating screw rod, the guide sleeve is sheathed on the outside of reciprocating screw rod, sliding equipment is sheathed on guide sleeve, left-and-right spiral slot is offered on the reciprocating screw rod, wherein the screw pitch of left-turn spiral slot is 12mm, the screw pitch of right hand helix slot is 24mm, the sliding equipment includes the sliding block being placed on guide sleeve, it is provided with pressing plate on the sliding block, flexible crescent moon pin is set on the pressing plate, the end of the crescent moon pin is matched with the helicla flute of reciprocating screw rod.The utility model is by changing the screw pitch of reciprocating screw rod or so rotation direction, to realize that speed change moves back and forth, to make reciprocating screw rod be more widely used.

Description

Variable-ratio reciprocating screw rod
Technical field
The utility model is related to a kind of variable-ratio reciprocating screw rods, mainly the spiral shell by changing reciprocating screw rod or so rotation direction Away to realize that speed change moves back and forth, to make reciprocating screw rod be more widely used.
Background technology
Traditional reciprocating screw rod is since the screw pitch of left and right rotation direction is identical, although being widely used, can only also use In requiring to move left and right the equal occasion of speed;In machinery industry, it is desirable that the reciprocating motion of speed change is often by eccentric turbine The realizations such as structure, cam mechanism, and these mechanism structures are complicated, precision is not high.
Reciprocating screw rod is made of two identical, oppositely oriented thread grooves of screw pitch, both ends transition in same outer circle Curve connects.By the single direction rotation of lead screw, make the side of helicla flute that the sliding block being placed in helicla flute be pushed to make at the uniform velocity axial past Multiple movement.For occasions such as wire drawing machine, cable machine, coil winding machine, printing machines in machinery industry.
In machinery industry, the reciprocating motion for requiring speed change is often used, i.e. the course of work is at the uniform velocity fed, inoperative mistake Journey fast fallback.These common mechanisms have:Cam mechanism, eccentric mechanism, Geneva mechanism etc., and these mechanism generally existings Speed is difficult to control, stability is poor, precision is relatively low, is susceptible to the defects of stuck.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of variable-ratio reciprocating screw rod for the above-mentioned prior art, By changing the screw pitch of reciprocating screw rod or so rotation direction, to realize that speed change moves back and forth, to make reciprocating screw rod obtain widely Using.
The technical scheme in the invention for solving the above technical problem is:A kind of variable-ratio reciprocating screw rod, including it is reciprocal Lead screw, sliding equipment, guide sleeve, support base and handwheel, the reciprocating screw rod are horizontally placed on support base, and handwheel is installed on past One end of multifilament bar, the guide sleeve are sheathed on the outside of reciprocating screw rod, and sliding equipment is sheathed on guide sleeve, the past multifilament Left-and-right spiral slot is offered on bar, the wherein screw pitch of left-turn spiral slot is 12mm, and the screw pitch of right hand helix slot is 24mm, the cunning Motivation structure includes the sliding block being placed on guide sleeve, and pressing plate is provided on the sliding block, is arranged on the pressing plate flexible The end of crescent moon pin, the crescent moon pin is matched with the helicla flute of reciprocating screw rod.
Compared with prior art, the utility model has the advantage of:
The utility model combines reciprocating screw rod and reciprocating mechanism, left by changing reciprocating screw rod The screw pitch of right spiral makes the uniform motion of reciprocating screw rod change into variable motion, to replace some speed change reciprocating machines Structure, such reciprocating screw rod can be more widely used.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model straight tube welding.
Fig. 2 is the structural schematic diagram of the utility model elbow pipe welding.
Fig. 3 is the structural schematic diagram of diaphragm seal in the utility model.
Specific implementation mode
The utility model is described in further detail with reference to embodiments.
Referring to Fig. 1-3, the utility model is related to a kind of variable-ratio reciprocating screw rod, including reciprocating screw rod 1, sliding equipment 2, Guide sleeve 3, support base 4 and handwheel 5, the reciprocating screw rod 1 are horizontally placed on support base 4, and handwheel 5 is installed on reciprocating screw rod 1 One end, the guide sleeve 3 is sheathed on the outside of reciprocating screw rod 1, and sliding equipment 2 is sheathed on guide sleeve 3, the reciprocating screw rod Left-and-right spiral slot is offered on 1, the screw pitch of left-and-right spiral slot is unequal, and wherein the screw pitch of left-turn spiral slot is 12mm, dextrorotation spiral shell The screw pitch of spin slot is 24mm, and handwheel drives Unequal distance reciprocating screw rod to rotate, due to the spiral shell of reciprocating screw rod left-and-right spiral slot Away from difference, the speed of reciprocating screw rod bilateral reciprocation is also just different.The sliding equipment 2 includes the cunning being placed on guide sleeve 3 Block 2.1 is provided with pressing plate 2.2 on the sliding block 2.1, and flexible crescent moon pin 2.3 is arranged on the pressing plate 2.2, described The end of crescent moon pin 2.3 is matched with the helicla flute of reciprocating screw rod 1, and the sheathed spring 2.4 on crescent moon pin 2.3, in past multifilament Under the turning effort of bar, crescent moon pin band movable slider 2.1 moves on guide sleeve 3, avoids reciprocating screw rod and the direct of sliding block connects It touches, reduces the abrasion of reciprocating screw rod, in addition a small amount of lubricating oil of guide sleeve storage inside, plays the role of lubricating maintenance.
In addition to the implementation, the utility model further includes having other embodiment, all to use equivalents or equivalent The technical solution that alternative is formed, should all fall within the protection domain of the utility model claims.

Claims (1)

1. a kind of variable-ratio reciprocating screw rod, it is characterised in that:Including reciprocating screw rod(1), sliding equipment(2), guide sleeve(3), branch Support seat(4)And handwheel(5), the reciprocating screw rod(1)It is horizontally placed on support base(4)On, handwheel(5)It is installed on reciprocating screw rod (1)One end, the guide sleeve(3)It is sheathed on reciprocating screw rod(1)Outside, sliding equipment(2)It is sheathed on guide sleeve(3)On, The reciprocating screw rod(1)On offer left-and-right spiral slot, wherein the screw pitch of left-turn spiral slot is 12mm, the screw pitch of right hand helix slot For 24mm, the sliding equipment(2)Including being placed on guide sleeve(3)On sliding block(2.1), in the sliding block(2.1)On be provided with Pressing plate(2.2), in the pressing plate(2.2)The upper flexible crescent moon pin of setting(2.3), the crescent moon pin(2.3)End with it is past Multifilament bar(1)Helicla flute match.
CN201720821471.8U 2017-07-08 2017-07-08 Variable-ratio reciprocating screw rod Expired - Fee Related CN207687287U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720821471.8U CN207687287U (en) 2017-07-08 2017-07-08 Variable-ratio reciprocating screw rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720821471.8U CN207687287U (en) 2017-07-08 2017-07-08 Variable-ratio reciprocating screw rod

Publications (1)

Publication Number Publication Date
CN207687287U true CN207687287U (en) 2018-08-03

Family

ID=62987970

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720821471.8U Expired - Fee Related CN207687287U (en) 2017-07-08 2017-07-08 Variable-ratio reciprocating screw rod

Country Status (1)

Country Link
CN (1) CN207687287U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111664236A (en) * 2020-06-16 2020-09-15 华中科技大学鄂州工业技术研究院 Screw rod for realizing geometric motion of multiple objects and application thereof
CN111828271A (en) * 2020-08-11 2020-10-27 何景安 Inner hole reciprocating rotator of single-phase rotating device
CN112963503A (en) * 2021-02-24 2021-06-15 江苏大学 Reciprocating stroke lead screw inerter device with adjustable inerter coefficient
CN113915104A (en) * 2021-10-08 2022-01-11 衡玉珍 Piston compressor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111664236A (en) * 2020-06-16 2020-09-15 华中科技大学鄂州工业技术研究院 Screw rod for realizing geometric motion of multiple objects and application thereof
CN111828271A (en) * 2020-08-11 2020-10-27 何景安 Inner hole reciprocating rotator of single-phase rotating device
CN112963503A (en) * 2021-02-24 2021-06-15 江苏大学 Reciprocating stroke lead screw inerter device with adjustable inerter coefficient
CN113915104A (en) * 2021-10-08 2022-01-11 衡玉珍 Piston compressor
CN113915104B (en) * 2021-10-08 2023-09-01 湖北双剑鼓风机股份有限公司 Piston compressor

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180803

Termination date: 20190708

CF01 Termination of patent right due to non-payment of annual fee