CN103053238B - Over-torsion protection farm implement transmission mechanism - Google Patents

Over-torsion protection farm implement transmission mechanism Download PDF

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Publication number
CN103053238B
CN103053238B CN201210528660.8A CN201210528660A CN103053238B CN 103053238 B CN103053238 B CN 103053238B CN 201210528660 A CN201210528660 A CN 201210528660A CN 103053238 B CN103053238 B CN 103053238B
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CN
China
Prior art keywords
driving wheel
sleeve
output shaft
transmission
power shaft
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
CN201210528660.8A
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Chinese (zh)
Other versions
CN103053238A (en
Inventor
武顺
张培斌
席文杰
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.)
Zhejiang Lekelai Machinery Co Ltd
Original Assignee
Zhejiang Lekelai Machinery Co Ltd
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 Zhejiang Lekelai Machinery Co Ltd filed Critical Zhejiang Lekelai Machinery Co Ltd
Priority to CN201210528660.8A priority Critical patent/CN103053238B/en
Publication of CN103053238A publication Critical patent/CN103053238A/en
Application granted granted Critical
Publication of CN103053238B publication Critical patent/CN103053238B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention relates to an over-torsion-protection farm implement transmission mechanism which comprises an input shaft and an output shaft, wherein the input shaft is connected with a driving wheel, the output shaft is connected with a driven wheel, and the driving wheel is connected with the driven wheel in a transmission mode; the driving wheel is provided with an expanding-tightening sleeve which clamps the input shaft within the set torsion range; or the driven wheel is provided with an expanding-tightening sleeve which clamps the output shaft within the set torsion range. The input shaft or the output shaft slips in the expanding-tightening sleeve when comes in a condition that the resistance, the torsion is oversize or an overload condition to protect a transmission device and a power producer, accordingly the working life of the output shaft and the integrate transmission mechanism is prolonged, the production and detachment of the expanding-tightening sleeve is convenient and the interchangeability is good.

Description

A kind of farm implements transmission mechanism crossing torque protection
Technical field
The present invention relates to a kind of farm implements transmission mechanism crossing torque protection.
Background technology
The transmission device of existing farm implements generally comprises power shaft, a pair moving runner and output shaft, is connected between axle and wheel by flat key; Effectively can provide transmission in the course of the work, but meet obstructions at output device, moment of torsion excessive and overload will destroy transmission, break power source, cause the damage of farm implements workpiece even cannot realize transmission.
Summary of the invention
The technical problem that the present invention solves is to provide a kind of farm implements transmission mechanism being provided with torque protection.
The present invention solves its technical problem and adopts following technical scheme: a kind of farm implements transmission mechanism crossing torque protection; comprise power shaft, output shaft; described power shaft is connected with driving wheel; described output shaft is connected with driven pulley; described driving wheel and driven pulley are in transmission connection; described driving wheel is provided with expansion sleeve, and described expansion sleeve clamps power shaft in setting torque range.
Further technical scheme is: described expansion sleeve is ring bodies, and described ring bodies is provided with breach, power shaft described in cross-under in described ring bodies, by the contraction clamping power shaft of described breach.
Further technical scheme is: the periphery of described ring bodies is provided with projection, and described ring bodies connects driving wheel by described projection.
Further technical scheme is: described expansion sleeve comprises inner sleeve and overcoat, described inner sleeve and put outward and be equipped with opening, and put power shaft described in cross-under in described and be connected with driving wheel, described overcoat is clamped between described inner sleeve and driving wheel.
Further technical scheme is: described inner sleeve and put the conical surface being provided with and matching outward, put in described and be circumferentially provided with extension, described extension side is provided with the groove by screw thread portion, screw connects described extension and driving wheel, and when tightening screw, the conical surface is mutually mobile clamps described driving wheel and power shaft.
Another kind of scheme of the present invention: a kind of farm implements transmission mechanism crossing torque protection; comprise power shaft, output shaft; described power shaft is connected with driving wheel; described output shaft is connected with driven pulley; described driving wheel and driven pulley are in transmission connection; described driven pulley is provided with expansion sleeve, and described expansion sleeve clamps output shaft in setting torque range.
Further technical scheme is: described driving wheel and driven pulley are belt wheel, and described driving wheel is connected by belt with driven pulley.
Further technical scheme is: described driving wheel and driven pulley are gear, and described driving wheel and driven pulley engage each other.
Further technical scheme is: described driving wheel and driven pulley are sprocket wheel, are connected between described driving wheel and driven pulley by chain.
The invention has the beneficial effects as follows: described power shaft and driving wheel are in transmission connection by expansion sleeve; or described output shaft and driven pulley are in transmission connection by expansion sleeve; meet obstructions at output shaft and power source, moment of torsion excessive and overload power shaft or output shaft skid in expansion sleeve; to protect transmission device and power source; extend the life-span of output shaft and whole transmission mechanism; and expansion sleeve manufacture and convenient disassembly, and there is good interchangeability.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the front view of expansion sleeve in the present invention;
Fig. 3 is the right view of expansion sleeve in the embodiment of the present invention 1;
Fig. 4 is the right view of expansion sleeve in the embodiment of the present invention 2.
Embodiment
With reference to figure 1; a kind of farm implements transmission mechanism crossing torque protection of shown the present invention; comprise power shaft 1, output shaft 4; described power shaft 1 is connected with driving wheel 2 and reduction box 7, described output shaft 4 is connected with driven pulley 3, described output shaft 4 is connected by key with driven pulley 3; described driving wheel 2 and driven pulley 3 are in transmission connection; described driving wheel 2 is provided with expansion sleeve 5, and described expansion sleeve 5 clamps power shaft 1 in setting torque range, and described transmission mechanism drives workpiece motion on output shaft 4.According to the intensity settings peak torque of axle and workpiece, when being greater than this moment of torsion, power shaft dallies in expansion sleeve.
With reference to figure 1, referring to figs. 2 and 3, embodiment 1: as a kind of preferred structure of above-mentioned expansion sleeve, described expansion sleeve 5 is ring bodies, described ring bodies is provided with breach 51, and in described ring bodies 5, power shaft 1 described in cross-under, is connected ring bodies 5 with driving wheel 2 by screw; Can arrange protruding 53 on the periphery of described ring bodies 5, described ring bodies 5 connects driving wheel 2 by the connecting hole 52 on described protruding 53, and the size that can control opening by the layout of screw thread produces the clamping force of different size.
With reference to figure 4, embodiment 2: as the another kind of frame mode of above-mentioned expansion sleeve, described expansion sleeve comprises inner sleeve 81 and overcoat 82, described inner sleeve 81 and overcoat 82 are equipped with opening, power shaft 1 described in cross-under in described inner sleeve 81 is also connected with driving wheel 2, and described overcoat 82 is clamped between described inner sleeve 83 and driving wheel 2 inner headed face.
Described inner sleeve 81 and overcoat 82 are provided with the conical surface matched, and described inner sleeve 81 is circumferentially provided with extension 83, and described extension 83 side is provided with the groove 84 by screw thread portion, and screw connects driving wheel 2 through described groove 84; By the effect of high-strength bolt during use, make the conical surface described driving wheel of mobile clamping and power shaft mutually between inner sleeve 81 and overcoat 82, between outer shroud and wheel hub, produce huge enclasping force; Realize connecting, in order to transfer charge of driving wheel and power shaft.Use torque-indicating wrench tights a bolt, and reaches rated moment value.
With reference to figure 1, embodiment 3: as the one change structure of embodiment 1 and 2, described driven pulley 3 arranges described expansion sleeve 5, and described expansion sleeve 5 clamps output shaft 4 in setting torque range; Connected by expansion sleeve between described power shaft 1 and driving wheel 2, or connected by key.
Above-mentioned driving wheel 2 and driven pulley 3 are belt wheel, and described driving wheel is connected by belt 6 with driven pulley, and the frictional force between described expansion sleeve is greater than the frictional force between belt wheel and belt.
Above-mentioned driving wheel 2 and driven pulley 3 are gear, and described driving wheel and driven pulley engage each other.
Above-mentioned driving wheel 2 and driven pulley 3 are sprocket wheel, are connected between described driving wheel and driven pulley by chain.
Those skilled in the art, after knowing principle of the present invention, can make various change and distortion to the present invention, only otherwise depart from spirit of the present invention, all should belong to the scope that claims of the present invention define.

Claims (1)

1. cross the farm implements transmission mechanism of torque protection for one kind, comprise power shaft, output shaft, described power shaft is connected with driving wheel, described output shaft is connected with driven pulley, described driving wheel and driven pulley are in transmission connection, it is characterized in that: described driving wheel is provided with expansion sleeve, described expansion sleeve clamps power shaft in setting torque range, described expansion sleeve comprises inner sleeve and overcoat, described inner sleeve and put outward and be equipped with opening, power shaft described in described inner sleeve cross-under, described overcoat is clamped between described inner sleeve and driving wheel, described inner sleeve and put the conical surface being provided with and matching outward, put in described and be circumferentially provided with extension, described extension side is provided with the groove by screw thread portion, screw connects described extension and driving wheel, when tightening screw, the conical surface is mutually mobile clamps described driving wheel and power shaft.
CN201210528660.8A 2012-12-06 2012-12-06 Over-torsion protection farm implement transmission mechanism Expired - Fee Related CN103053238B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210528660.8A CN103053238B (en) 2012-12-06 2012-12-06 Over-torsion protection farm implement transmission mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210528660.8A CN103053238B (en) 2012-12-06 2012-12-06 Over-torsion protection farm implement transmission mechanism

Publications (2)

Publication Number Publication Date
CN103053238A CN103053238A (en) 2013-04-24
CN103053238B true CN103053238B (en) 2015-06-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210528660.8A Expired - Fee Related CN103053238B (en) 2012-12-06 2012-12-06 Over-torsion protection farm implement transmission mechanism

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2460498Y (en) * 2001-01-20 2001-11-21 郑钢男 Rolling expansible cover of cutting winding machine
CN201127394Y (en) * 2007-12-25 2008-10-08 中国电子科技集团公司第四十五研究所 Planetary gear type cleaner
CN201534223U (en) * 2009-06-30 2010-07-28 上海重型机床厂有限公司 Spindle transmission system of large-torque high-rigidity high-precision numerically controlled lathe
CN201874948U (en) * 2010-10-04 2011-06-22 李进 Split expansion sleeve
GB2480523A (en) * 2010-05-18 2011-11-23 Allan Bare Safety guard for use with an agricultural power take off
CN202958122U (en) * 2012-12-06 2013-06-05 浙江乐客来机械有限公司 Farm implement transmission mechanism with excessive torque protection

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3708001B2 (en) * 2000-07-25 2005-10-19 株式会社クボタ Power take-out structure of work vehicle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2460498Y (en) * 2001-01-20 2001-11-21 郑钢男 Rolling expansible cover of cutting winding machine
CN201127394Y (en) * 2007-12-25 2008-10-08 中国电子科技集团公司第四十五研究所 Planetary gear type cleaner
CN201534223U (en) * 2009-06-30 2010-07-28 上海重型机床厂有限公司 Spindle transmission system of large-torque high-rigidity high-precision numerically controlled lathe
GB2480523A (en) * 2010-05-18 2011-11-23 Allan Bare Safety guard for use with an agricultural power take off
CN201874948U (en) * 2010-10-04 2011-06-22 李进 Split expansion sleeve
CN202958122U (en) * 2012-12-06 2013-06-05 浙江乐客来机械有限公司 Farm implement transmission mechanism with excessive torque protection

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Granted publication date: 20150603

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