CN102334412A - Variable-force damper for knotters - Google Patents

Variable-force damper for knotters Download PDF

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Publication number
CN102334412A
CN102334412A CN2010102354676A CN201010235467A CN102334412A CN 102334412 A CN102334412 A CN 102334412A CN 2010102354676 A CN2010102354676 A CN 2010102354676A CN 201010235467 A CN201010235467 A CN 201010235467A CN 102334412 A CN102334412 A CN 102334412A
Authority
CN
China
Prior art keywords
friction plate
eccentric
friction
plate
knotter
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.)
Pending
Application number
CN2010102354676A
Other languages
Chinese (zh)
Inventor
刘贵林
翟改霞
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.)
HUHHOT BRANCH OF CHINESE ACADEMY OF AGRICULTURAL MECHANIZATION SCIENCES
Original Assignee
HUHHOT BRANCH OF CHINESE ACADEMY OF AGRICULTURAL MECHANIZATION SCIENCES
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 HUHHOT BRANCH OF CHINESE ACADEMY OF AGRICULTURAL MECHANIZATION SCIENCES filed Critical HUHHOT BRANCH OF CHINESE ACADEMY OF AGRICULTURAL MECHANIZATION SCIENCES
Priority to CN2010102354676A priority Critical patent/CN102334412A/en
Publication of CN102334412A publication Critical patent/CN102334412A/en
Pending legal-status Critical Current

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Abstract

A variable-force damper for knotters comprises a knotter shaft, an eccentric friction plate, an elastic friction unit and a housing; the elastic friction unit comprises a left press plate, a left friction plate, a right friction plate, a right press plate, rivets, bolts, nuts, washers and springs; the housing comprises a support and guide rods; the eccentric friction plate and the knotter shaft are connected together and mounted on the housing together; the elastic friction unit is connected with the guide rods, and both sides of the eccentric friction plate are respectively superposed with the left friction plate and the right friction plate. The variable-force damper for the knitters is characterized in that: since the axis and the outer circle of the eccentric friction plate are not concentric, as the eccentric friction plate is rotated once, the contact areas between both sides of the eccentric friction plate as well as the left and the right friction plates are respectively periodically changed. The variable-force damper for the knitters, which is provided by the invention, has the characteristics of low-damp starting and high-damp braking.

Description

Knotter variable force damping unit
Technical field
The invention belongs to the agricultural machinery application, knotter is the vitals of herbage and agricultural crop straw picking up and bundling machine, and the present invention is specifically related to a kind of knotter variable force damping unit, is made up of knotter shaft, eccentric friction plate, elastic-friction device, support; The present invention provides the variable force damping unit of a kind of little damping startup, big damping brake.
Background technology
In existing technology, the damping unit resistance is constant during knotter work; Knotter shaft rotates a circle knotter work once; In order to guarantee the knotter even running; Knotter shaft must be installed damping unit, and the excessive knotter shaft of damping starts difficulty, brake fade when stopping that damping is too small; The present invention provides the variable force damping unit of a kind of little damping startup, big damping brake, can guarantee the knotter reliably working effectively.
Summary of the invention
The object of the invention is to provide a kind of knotter variable force damping unit.
The present invention realizes through following technical scheme:
A kind of knotter variable force damping unit is made up of knotter shaft, eccentric friction plate, elastic-friction device, support; The elastic-friction device is made up of left pressing plate, left friction plate, right friction plate, right pressing plate, rivet, bolt, nut, pad, spring; Support is made up of bearing, guide rod; Eccentric friction plate connects with knotter shaft and is rack-mount; The elastic-friction device connects with guide rod, and eccentric friction plate two sides overlap with left friction plate and right friction plate rubbing surface respectively.
Knotter variable force damping unit is characterised in that eccentric friction plate axle center and cylindrical decentraction, and eccentric friction plate rotates a circle, eccentric friction plate two sides respectively with the contact area cyclically-varying of left friction plate and right friction plate.
Description of drawings
Fig. 1 is an overall construction drawing of the present invention.
Fig. 2 is an elastic-friction device stereogram.
Fig. 3 is an elastic-friction device front view.
Fig. 4 is an elastic-friction device side view.
Fig. 5 is eccentric friction plate structure figure.
Fig. 6 is a rack assumption diagram.
In the accompanying drawing: 1 is knotter shaft, and 2 is eccentric friction plate, and 3 is the elastic-friction device, and 4 is support, and 5 is left pressing plate; 6 is left friction plate, and 7 is right friction plate, and 8 is right pressing plate, and 9 is rivet, and 10 is bolt; 11 is nut, and 12 is pad, and 13 is spring, and 14 is bearing, and 15 is guide rod.
Embodiment
According to accompanying drawing the present invention is done further description:
A kind of knotter variable force damping unit is made up of knotter shaft (1), eccentric friction plate (2), elastic-friction device (3), support (4); Elastic-friction device (3) is made up of left pressing plate (5), left friction plate (6), right friction plate (7), right pressing plate (8), rivet (9), bolt (10), nut (11), pad (12), spring (13); Support (4) is made up of bearing (14), guide rod (15); Eccentric friction plate (2) connects with knotter shaft (1) and is installed on the support (4); Elastic-friction device (3) connects with guide rod (15), and eccentric friction plate (2) two sides overlap with left friction plate (6) and right friction plate (7) rubbing surface respectively.
Knotter variable force damping unit is characterized in that eccentric friction plate (2) axle center and cylindrical decentraction, and eccentric friction plate (2) rotates a circle, eccentric friction plate (2) two sides respectively with left friction plate (6) and right friction plate (7) contact area cyclically-varying.So the damping that knotter shaft (1) is produced also changes.
During work; Eccentric friction plate (2) two sides overlap with left friction plate (6) and right friction plate (7) rubbing surface respectively; Knotter shaft (1) drives eccentric friction plate (2) rotation, and left friction plate (6) and right friction plate (7) produce friction to eccentric friction plate (2) knotter shaft (1) is produced damping action under the pressure effect of spring.Because eccentric friction plate (2) axle center and cylindrical decentraction, eccentric friction plate (2) rotates a circle and left friction plate (6) and the variation of right friction plate (7) contact area generating period property, and the damping that like this knotter shaft (1) is produced also changes.Thereby can realize that the little damping of knotter shaft starts, the effect of big damping brake, can guarantee the knotter reliably working effectively.

Claims (2)

1. a knotter variable force damping unit is made up of knotter shaft (1), eccentric friction plate (2), elastic-friction device (3), support (4); Elastic-friction device (3) is made up of left pressing plate (5), left friction plate (6), right friction plate (7), right pressing plate (8), rivet (9), bolt (10), nut (11), pad (12), spring (13); Support (4) is made up of bearing (14), guide rod (15); Eccentric friction plate (2) connects with knotter shaft (1) and is installed on the support (4); Elastic-friction device (3) connects with guide rod (15), and eccentric friction plate (2) two sides overlap with the rubbing surface of left friction plate (6) and right friction plate (7) respectively.
2. according to claims 1 described knotter variable force damping unit; It is characterized in that eccentric friction plate (2) axle center and cylindrical decentraction; Eccentric friction plate (2) rotates a circle, eccentric friction plate (2) two sides respectively with the contact area cyclically-varying of left friction plate (6) and right friction plate (7).
CN2010102354676A 2010-07-15 2010-07-15 Variable-force damper for knotters Pending CN102334412A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010102354676A CN102334412A (en) 2010-07-15 2010-07-15 Variable-force damper for knotters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010102354676A CN102334412A (en) 2010-07-15 2010-07-15 Variable-force damper for knotters

Publications (1)

Publication Number Publication Date
CN102334412A true CN102334412A (en) 2012-02-01

Family

ID=45510556

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010102354676A Pending CN102334412A (en) 2010-07-15 2010-07-15 Variable-force damper for knotters

Country Status (1)

Country Link
CN (1) CN102334412A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103988645A (en) * 2014-05-28 2014-08-20 江苏大学 Hook junction constant force control device for knotter

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2155129Y (en) * 1992-09-28 1994-02-09 北京农业工程大学 Manpower rice transplanter
JP2000291712A (en) * 1999-04-06 2000-10-20 Ohbayashi Corp Damping structure for bolt junction part
CN1959150A (en) * 2006-06-27 2007-05-09 上海振华轴承总厂 Automatic belt tightener with changeable rigidity
CN201064104Y (en) * 2007-05-28 2008-05-28 中国农业机械化科学研究院呼和浩特分院 Forage grass cutting and knead baler
CN201166077Y (en) * 2008-01-18 2008-12-17 北京工业大学 Plate type friction changeable damper
CN101731065A (en) * 2008-11-24 2010-06-16 中国农业机械化科学研究院呼和浩特分院 Novel knotting machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2155129Y (en) * 1992-09-28 1994-02-09 北京农业工程大学 Manpower rice transplanter
JP2000291712A (en) * 1999-04-06 2000-10-20 Ohbayashi Corp Damping structure for bolt junction part
CN1959150A (en) * 2006-06-27 2007-05-09 上海振华轴承总厂 Automatic belt tightener with changeable rigidity
CN201064104Y (en) * 2007-05-28 2008-05-28 中国农业机械化科学研究院呼和浩特分院 Forage grass cutting and knead baler
CN201166077Y (en) * 2008-01-18 2008-12-17 北京工业大学 Plate type friction changeable damper
CN101731065A (en) * 2008-11-24 2010-06-16 中国农业机械化科学研究院呼和浩特分院 Novel knotting machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103988645A (en) * 2014-05-28 2014-08-20 江苏大学 Hook junction constant force control device for knotter

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Application publication date: 20120201