CN104195679B - A kind of combing machine detaching roller variable transmission mechanism - Google Patents
A kind of combing machine detaching roller variable transmission mechanism Download PDFInfo
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- CN104195679B CN104195679B CN201410489103.9A CN201410489103A CN104195679B CN 104195679 B CN104195679 B CN 104195679B CN 201410489103 A CN201410489103 A CN 201410489103A CN 104195679 B CN104195679 B CN 104195679B
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- gear pair
- eccentric gear
- driven pulley
- rocking bar
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Abstract
A kind of combing machine detaching roller variable transmission mechanism, including eccentric gear pair and crank and rocker mechanism, eccentric gear pair includes eccentric gear pair drivewheel and eccentric gear pair driven pulley, eccentric gear pair drivewheel is arranged on cylinder axis, eccentric gear pair drivewheel moves at the uniform velocity with cylinder axis, and eccentric gear pair driven pulley kink is arranged on axle I;Crank and rocker mechanism includes that crank, connecting rod and rocking bar, connecting rod are hinged with eccentric gear pair driven pulley, and rocking bar is hinged with connecting rod, and rocking bar is arranged on the axle II being synchronized with the movement with the first run in differential gear train, and axle II is synchronized with the movement with rocking bar.The present invention reduces the quantity of driving member, reduce the complexity of drive mechanism, decrease the frictional heating amount of drive mechanism, improve transmission efficiency;Reduce the difficulty of processing of component and the assembly difficulty of drive mechanism, improve manufacture efficiency, reduce production cost;Save the installing space of drive mechanism, improve the transmission accuracy of mechanism, reduce the vibration of drive mechanism.
Description
Technical field
The invention belongs to the Detaching Roller Transmission Mechanism of combing machine in Combing technology, be specifically related to a kind of combing machine and divide
From roller variable transmission mechanism.
Background technology
In order to complete overlap joint and the output of comber web, the detaching roller of combing machine must be according to reversing → clockwise → base
The characteristics of motion of this stopping realizes.Therefore, the Detaching Roller Transmission Mechanism of combing machine have employed planar linkage mechanism group mostly
The kind of drive that the constant speed driven gas heat pump mechanism of the variable transmission mechanism become and differential gear train composition combines, wherein by planar linkage machine
The characteristics of motion of the variable transmission mechanism of structure composition determines whether detaching roller reverses.In planar linkage mechanism, due to many
Number component is irregularly shaped and is non-uniform movement, therefore creates bigger inertia force during mechanism kinematic, shortens
In the service life of associated components, hinder the raising of combing machine speed, have impact on the overlap joint quality of web.Simultaneously in machining
And during assembling, more owing to constituting the component of planar linkage mechanism, and the assembly space of mechanism is limited, the dress to mechanism
The processing technique of flow journey, assembly technology and component is proposed higher requirement, thus adds manufacturing cost, reduces
Production efficiency and the transmission accuracy of mechanism.Based on this, it is necessary to invent a kind of modern comber that can solve the problems referred to above and divide
From roller variable transmission mechanism, high to reach production efficiency, machine vibration is little, and energy resource consumption is low, processing and assembly technology is simple,
Flow process is short, the purpose that transmission accuracy is high.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of combing machine detaching roller variable transmission mechanism, this mechanism be by
The Detaching Roller Transmission Mechanism that eccentric gear pair combines with crank and rocker mechanism, it is achieved that production efficiency is high, and machine vibration is little,
Energy resource consumption is low, processes and assembly technology is simple, flow process is short, the purpose that transmission accuracy is high.
The technical scheme is that a kind of combing machine detaching roller variable transmission mechanism, including eccentric gear pair and song
Handle endplay device, described eccentric gear pair includes eccentric gear pair drivewheel and eccentric gear pair driven pulley, eccentric gear pair master
Driving wheel is arranged on cylinder axis, and eccentric gear pair drivewheel moves at the uniform velocity with cylinder axis, and eccentric gear pair driven pulley kink is installed
On axle I;Described crank and rocker mechanism includes that crank, connecting rod and rocking bar, connecting rod and eccentric gear pair driven pulley are articulated with an A,
Rocking bar and rod hinge connection are in a B, and rocking bar is arranged on the axle II being synchronized with the movement with the first run in differential gear train, and axle II is Tong Bu with rocking bar
Motion.
Described eccentric gear pair drivewheel and the number of teeth of eccentric gear pair driven pulley, modulus, eccentricity are the most equal.
Described connecting rod passes through pin-hinges with eccentric gear pair driven pulley by pin-hinges, rocking bar and connecting rod.
The present invention compared with prior art, has the advantages that first, The present invention reduces the number of driving member
Amount, reduces the complexity of drive mechanism, decreases the frictional heating amount of drive mechanism, improve transmission efficiency;Second, this
The bright difficulty of processing reducing component and the assembly difficulty of drive mechanism, improve manufacture efficiency, reduce production cost;The
Three, present invention saves the installing space of drive mechanism, improve the transmission accuracy of mechanism, reduce the vibration of drive mechanism.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram.
Fig. 2 is the detaching roller displacement curve of the present invention.
Fig. 3 is the detaching roller rate curve of the present invention.
Fig. 4 is the detaching roller accelerating curve of the present invention.
Fig. 5 is former organizational separation roller displacement curve.
Fig. 6 is former organizational separation roller speed curve.
Fig. 7 is former organizational separation roller accelerating curve.
Detailed description of the invention
The present invention is further elaborated below in conjunction with the accompanying drawings.
A kind of combing machine detaching roller variable transmission mechanism, as it is shown in figure 1, include eccentric gear pair and crank rocker machine
Structure.Eccentric gear pair includes eccentric gear pair drivewheel 1 and eccentric gear pair driven pulley 2, and eccentric gear pair drivewheel 1 is arranged on
On cylinder axis O, eccentric gear pair drivewheel 1 moves at the uniform velocity with cylinder axis O, and eccentric gear pair driven pulley 2 kink is arranged on axle I O1
On.Crank and rocker mechanism includes crank O1A, connecting rod 3 and rocking bar 4, connecting rod 3 and eccentric gear pair driven pulley 2 are articulated with an A, shake
Bar 4 and connecting rod 3 are articulated with a B, and rocking bar 4 is arranged on axle II O being synchronized with the movement with the first run in differential gear train2On, axle II O2By rotation
Turn secondary hinged with frame, axle II O 2It is synchronized with the movement with rocking bar 4.
Eccentric gear pair drivewheel 1 and the number of teeth of eccentric gear pair driven pulley 2, modulus, eccentricity are the most equal, eccentric gear
Between secondary drivewheel 1 and eccentric gear pair driven pulley 2, engagement connects, and the maximum radius of eccentric gear pair drivewheel 1 during assembling
The least radius of alignment eccentric gear pair driven pulley 2.Connecting rod 3 and eccentric gear pair driven pulley 2 by pin-hinges, rocking bar 4 with
Connecting rod 3 passes through pin-hinges.Crank O in crank and rocker mechanism1A, connecting rod 3, the size of rocking bar 4 and axle I O1With axle II O2Between
Distance O1O2Determined by the variation in angular displacement amount of former Detaching Roller Transmission Mechanism midplane linkage output link.
If φ1、φ2It is respectively in former Detaching Roller Transmission Mechanism midplane linkage output link and apparatus of the present invention
The variation in angular displacement amount of rocking bar 4, when in Detaching Roller Transmission Mechanism, the number of gear teeth of differential gear train, modulus and rigging position are constant
Time, to ensure that the kinematic parameter of detaching roller meets the requirement of combing machine Detaching and Lapping technique, then φ1=φ2;With HC500 type
As a example by combing machine, Detaching Roller Transmission Mechanism midplane linkage is carried out motion analysis, utilize MATLAB2010b software defeated
Enter the parameter of each component in this mechanism, can be calculated variation in angular displacement amount φ of planar linkage mechanism output link1For
50.3002 °, therefore, φ2=φ1=50.3002°
At crank and rocker mechanism O1ABO2In, there is relationship below between each component:
(1)
(2)
(3)
In formula: O1A=l1、AB=l2、BO2=l3、O1O2=l4.Variation in angular displacement amount according to rocking bar in crank and rocker mechanism 4
φ2And drive line angle γ can try to achieve in crank and rocker mechanism the relation between component, general γ >=40 °, γ=45 ° in this example.Will
γ=45°、φ2=50.3002°、l4=100mm brings into and just puts crank and rocker mechanism component relation formula (1), (2), (3) can obtain: l1/
l4=0.375, l2/l4=0.601, l3/l4=0.8829; O1A=37.5mm, AB=60.1mm, BO2=88.29mm, O1O2=100mm。
If the angular displacement of eccentric gear pair drivewheel 1 is θ1, angular velocity is ω1, the angular displacement of eccentric gear pair driven pulley 2
For θ2, angular velocity is ω2, eccentric gear pair is carried out motion analysis, available eccentric gear pair drivewheel 1 and eccentric gear pair
Movement relation between driven pulley 2:
(4)
(5)
(6)
(7)
(8)
Combing machine speed is 400 pincers beat/min (i.e. ω1For 41.8879rad/s), eccentric gear pair drivewheel 1 does and at the uniform velocity returns
Transhipment is dynamic, and eccentric gear pair driven pulley 2 does speed change gyration, and the eccentric ratio e of eccentric gear is 0.15, the number of teeth of eccentric gear
Z=49, the least radius of the maximum radius alignment driven pulley 2 of drivewheel 1 during assembling.Crank O1When the initial angle of A is 179 °, profit
Can obtain separating sieve by formula (4), (5), (6), (7), movement relation between (8) and crank and rocker mechanism and differential gear train
Displacement curve, rate curve and the accelerating curve drawn, as shown in Figure 2, Figure 3, Figure 4.As a example by HC500 type combing machine, according to
Movement relation between former Detaching Roller Transmission Mechanism component can get the displacement curve of detaching roller, rate curve and acceleration
Curve, as shown in Fig. 5, Fig. 6, Fig. 7.Former detaching roller and the displacement parameter of detaching roller of the present invention, speed parameter and acceleration
Parameter is respectively as shown in table 1, table 2, table 3, and said process all realizes on MATLAB2010b software.
The former mechanism of table 1 and detaching roller displacement parameter of the present invention
The former mechanism of table 2 and detaching roller speed parameter of the present invention
The former mechanism of table 3 and detaching roller acceleration parameter of the present invention
By each item data in comparative analysis table 1, table 2, table 3 and the curve in Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7
Understand: the Detaching Roller Transmission Mechanism variable speed drive that the eccentric gear pair in the present invention combines with crank and rocker mechanism is complete
Entirely meet the requirement of detaching roller Detaching and Lapping technique, and in motor process, the speed of detaching roller, acceleration have changed
Kind.
The operation principle of the present invention is: when cylinder axis O at the uniform velocity turns round, and eccentric gear pair drivewheel 1 is same along with cylinder axis O does
Step uniform motion, due to eccentric gear pair drivewheel 1 and the transmission radius of eccentric gear pair driven pulley 2, therefore two-wheeled
Rotating speed is different.When eccentric gear pair drivewheel 1 at the uniform velocity turns round, eccentric gear pair driven pulley 2 then does variable motion, eccentric gear
Secondary drivewheel 1 is completely the same with the number of teeth of eccentric gear pair driven pulley 2, modulus and eccentricity, therefore phase gyration period of two gears
Deng.The variable motion simultaneously obtained by eccentric gear pair driven pulley 2, through crank O1A, the transmission of connecting rod 3, finally make rocking bar 4
Obtaining periodic oscillating traverse motion, this moves across axle II O2It is delivered to the first run of differential gear train, in pincers time, this machine
Structure makes axle II O2Forward and reverse rotation once, through and cylinder axis O on transmit constant motion synthesis after be transmitted to detaching roller, make separation
Roller produces the motion of periodically reversing → clockwise → substantially static.
The content not being described in detail in description of the invention belongs to professional and technical personnel in the field's known technology.Above institute
Stating, only the present invention preferably detailed description of the invention, it is interior that the present invention is not limited to claim and above-described embodiment is addressed
Hold, as long as any invention being created out according to the design of the present invention, within all should belonging to protection scope of the present invention.
Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (2)
1. a combing machine detaching roller variable transmission mechanism, it is characterised in that include eccentric gear pair and crank and rocker mechanism,
Described eccentric gear pair includes eccentric gear pair drivewheel (1) and eccentric gear pair driven pulley (2), eccentric gear pair drivewheel
(1) being arranged on cylinder axis (O), eccentric gear pair drivewheel (1) moves at the uniform velocity with cylinder axis (O), eccentric gear pair driven pulley
(2) kink is arranged on axle I (O1On);Described crank and rocker mechanism includes crank (O1A), connecting rod (3) and rocking bar (4), connecting rod (3)
Being articulated with an A with eccentric gear pair driven pulley (2), rocking bar (4) and connecting rod (3) are articulated with a B, rocking bar (4) arrange with differential
Axle II (the O that in train, the first run is synchronized with the movement2On), axle II (O2) be synchronized with the movement with rocking bar (4);Described eccentric gear pair drivewheel
And the number of teeth of eccentric gear pair driven pulley (2), modulus, eccentricity are the most equal, eccentric gear pair drivewheel (1) and eccentric tooth (1)
Wheel set driven pulley (2) engagement connects;Crank (O in described crank and rocker mechanism1A), connecting rod (3), the size of rocking bar (4) and axle I
(O1) and axle II (O2Distance (O between)1O2) by former Detaching Roller Transmission Mechanism midplane linkage output link
Variation in angular displacement amount determines.
Combing machine detaching roller variable transmission mechanism the most according to claim 1, it is characterised in that described connecting rod (3) with
Eccentric gear pair driven pulley (2) passes through pin-hinges, and rocking bar (4) and connecting rod (3) pass through pin-hinges.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201410489103.9A CN104195679B (en) | 2014-09-23 | A kind of combing machine detaching roller variable transmission mechanism |
Applications Claiming Priority (1)
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CN201410489103.9A CN104195679B (en) | 2014-09-23 | A kind of combing machine detaching roller variable transmission mechanism |
Publications (2)
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CN104195679A CN104195679A (en) | 2014-12-10 |
CN104195679B true CN104195679B (en) | 2017-01-04 |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1224624A (en) * | 1967-09-30 | 1971-03-10 | Rieter Ag Maschf | System for controlling the drive of detaching rollers |
EP0418472A1 (en) * | 1989-09-08 | 1991-03-27 | Kabushiki Kaisha Hara Shokki Seisakusho | Detaching roller driving mechanism for a comber |
CN201077876Y (en) * | 2007-07-30 | 2008-06-25 | 陕西恒鑫精密纺织机械有限公司 | Novel separating and related jointing bar linkage of high speed cotton combing machine |
CN101311393A (en) * | 2007-05-21 | 2008-11-26 | 胡平 | Transmission mechanism of combing machine detaching roller |
EP2108722A1 (en) * | 2008-04-08 | 2009-10-14 | Maschinenfabrik Rieter Ag | Drive for nipper device of combing machine |
CN101654818A (en) * | 2009-04-24 | 2010-02-24 | 上海一纺机械有限公司 | Servo motor transmission structure of combing machine detaching roller |
CN101660227A (en) * | 2009-04-24 | 2010-03-03 | 上海一纺机械有限公司 | Transmission driving structure of combing machine |
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1224624A (en) * | 1967-09-30 | 1971-03-10 | Rieter Ag Maschf | System for controlling the drive of detaching rollers |
EP0418472A1 (en) * | 1989-09-08 | 1991-03-27 | Kabushiki Kaisha Hara Shokki Seisakusho | Detaching roller driving mechanism for a comber |
CN101311393A (en) * | 2007-05-21 | 2008-11-26 | 胡平 | Transmission mechanism of combing machine detaching roller |
CN201077876Y (en) * | 2007-07-30 | 2008-06-25 | 陕西恒鑫精密纺织机械有限公司 | Novel separating and related jointing bar linkage of high speed cotton combing machine |
EP2108722A1 (en) * | 2008-04-08 | 2009-10-14 | Maschinenfabrik Rieter Ag | Drive for nipper device of combing machine |
CN101654818A (en) * | 2009-04-24 | 2010-02-24 | 上海一纺机械有限公司 | Servo motor transmission structure of combing machine detaching roller |
CN101660227A (en) * | 2009-04-24 | 2010-03-03 | 上海一纺机械有限公司 | Transmission driving structure of combing machine |
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