CN101699943A - Connection device of tillage knife of mini-tiller - Google Patents
Connection device of tillage knife of mini-tiller Download PDFInfo
- Publication number
- CN101699943A CN101699943A CN200910191293A CN200910191293A CN101699943A CN 101699943 A CN101699943 A CN 101699943A CN 200910191293 A CN200910191293 A CN 200910191293A CN 200910191293 A CN200910191293 A CN 200910191293A CN 101699943 A CN101699943 A CN 101699943A
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- China
- Prior art keywords
- mini
- wire spring
- bearing pin
- tiller
- tillage knife
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- 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.)
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Abstract
The invention relates to a connection device of a tillage knife of a mini-tiller. The connection device is characterized in that the tillage knife of the mini-tiller is connected with the output shaft of the mini-tiller through a bayonet lock, the bayonet lock comprises a hinge pin and a steel wire spring, one end of the hinge pin is provided with a limit step used for controlling the length of the inserting output shaft of the hinge pin, one end of the steel wire spring is hinged with the hinge pin, the end combination and splicing position is fixed by binding, the other end of the steel wire spring is triangular, and sides of the triangle are internally tangent to the hinge pin. The device of the invention can be used to install and dismantle the tillage knife without any special tool, the operation is simple, and the connection of the tillage knife of mini-tiller is safer and more reliable.
Description
Technical field
The present invention relates to the connection of tillage knife of mini-tiller, be specifically related to a kind of coupling arrangement of tillage knife of mini-tiller.
Background technology
During mini-size tillage machine work, need load onto cultivated cutter, when not working, need unload cultivated cutter and change road wheel so that carrying.The cultivated cutter of present mini-size tillage machine generally adopts Bolt Connection or bearing pin to add the jump ring connection.The cultivated cutter of mini-size tillage machine adopts Bolt Connection, installing and unload when ploughing cutter, needs specific purpose tool (as: spanner or sleeve etc.) dismounting and construction bolt, troublesome poeration, and need set specific purpose tool, increase cost; The cultivated cutter of mini-size tillage machine adopts bearing pin to add jump ring to connect, and during mini-size tillage machine work, because of vibrations make the jump ring loose or dislocation or hung by foreign material, bearing pin is dropped out in the cutter tube of ploughing cutter, finally ploughs cutter and comes off, and causes security incident.
Summary of the invention
The coupling arrangement that the purpose of this invention is to provide a kind of tillage knife of mini-tiller, described device can make the installation and removal of ploughing cutter not need specific purpose tool, and easy and simple to handle, the connection of tillage knife of mini-tiller is more safe and reliable.
The object of the present invention is achieved like this: the bayonet lock that the cultivated cutter of mini-size tillage machine is connected with the mini-size tillage machine output shaft, bayonet lock comprises bearing pin and wire spring, bearing pin one end has the limited step that is used to control bearing pin insertion output shaft length, on the wire spring one end hinging pin shaft, this end merges the place of putting together by pricking
Fixing, the wire spring other end is triangular in shape, triangle edges and bearing pin inscribe.
Described wire spring bends to the arc of semicircle.
The radius of described curved wire spring is 24mm～30mm.
Described wire spring and bearing pin inscribe one end have the inclination straight section, and the angle of this inclination straight section and bearing pin is 70 °～75 °.
Owing to adopt technique scheme, on the wire spring one end hinging pin shaft, this end merges the place of putting together by pricking
Fixing, the wire spring other end is triangular in shape, triangle edges and bearing pin inscribe, and making wire spring like this, stressed spring is more and more tighter when one side of output shaft center, and this direction is for ploughing or state when walking, so connecting mode is safe and reliable; When spring stress was other direction, spring is pine more and more, and this direction is to unload the state of ploughing cutter, takes out with have gentle hands is light, and the cultivated cutter of mini-size tillage machine and road wheel are changed convenient, and do not need to establish in addition dismantling device, save cost.Wire spring bends to the arc of semicircle, and wire spring more can be close on the output shaft, makes the installation of ploughing cutter more firm.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is that the B of Fig. 1 is to view;
Fig. 4 is a stressed schematic diagram of the present invention;
The schematic diagram that Fig. 5 opens for the present invention.
In the accompanying drawing, 1 is bearing pin, and 2 is wire spring, and 2a is a triangle edges, and 2b is the section of turning back, and 3 for pricking
, 4 is hinge hole.
Embodiment
Referring to figs. 1 through Fig. 5, bayonet lock is used for the cultivated cutter of mini-size tillage machine is connected (figure does not indicate) with output shaft, bayonet lock comprises bearing pin 1 and wire spring 2, and bearing pin 1 one ends have the limited step that is used to control bearing pin insertion output shaft length, control the degree that bearing pin inserts output shaft like this.Wire spring 2 bends to side by side two, and on the wire spring 2 one end hinging pin shafts 1, this end has the section of turning back 2b, and the hinge hole 4 of this section of turning back 2b insertion bearing pin is hinged, and wire spring 2 can be rotated around the hinged place.Wire spring 2 merges the place of putting together by pricking with bearing pin 1 hinged end
3 is fixing, prevents from that wire spring 2 from being strutted to drop, and makes connection more fastening.Wire spring 2 other ends are triangular in shape, and triangle edges 2a and bearing pin 1 inscribe make fine being fixed on the bearing pin of wire spring 2 energy, guarantee that the connection of cultivated cutter is firm, also make taking off conveniently of wire spring 2, are convenient to plough the replacing of cutter and road wheel.Described wire spring 2 bends to the arc of semicircle, and wire spring 2 is walked around output shaft and is engaged on the bearing pin, and is fixing more firm, also makes wire spring have certain elasticity, is convenient to operation.It is 24mm～30mm that the present invention adopts the radius of wire spring 2, with mini-size tillage machine output shaft better fit.Described wire spring 2 has the inclination straight section with bearing pin 1 inscribe one end, and the angle of this inclination straight section and bearing pin is 70 °～75 °.
During use, bearing pin inserts the installing hole of ploughing broach shell tube and output shaft, stirring wire spring makes its end triangular in shape cooperate with bearing pin, the triangle edges of this end and bearing pin inscribe, and make wire spring and the bearing pin inscribe union end rear side in the direction of rotation of ploughing cutter, along with the rotation of ploughing cutter, bayonet lock will be subjected to the effect of power F1, bayonet lock is stuck in tightly ploughs on the cutter, can not come off.When needs take off bayonet lock, stir wire spring gently, make wire spring be subjected to the active force of F2, can open bayonet lock like this, take off cultivated cutter and change road wheel.
Claims (4)
1. the coupling arrangement of a tillage knife of mini-tiller, it is characterized in that: the bayonet lock that the cultivated cutter of mini-size tillage machine is connected with the mini-size tillage machine output shaft, bayonet lock comprises bearing pin and wire spring, bearing pin one end has the limited step that is used to control bearing pin insertion output shaft length, on the wire spring one end hinging pin shaft, this end merges the place of putting together by pricking
Fixing, the wire spring other end is triangular in shape, triangle edges and bearing pin inscribe.
2. the coupling arrangement of tillage knife of mini-tiller according to claim 1, it is characterized in that: described wire spring bends to the arc of semicircle.
3. the coupling arrangement of tillage knife of mini-tiller according to claim 1, it is characterized in that: the radius of described curved wire spring is 24mm～30mm.
4. the coupling arrangement of tillage knife of mini-tiller according to claim 1, it is characterized in that: described wire spring and bearing pin inscribe one end have the inclination straight section, and the angle of this inclination straight section and bearing pin is 70 °～75 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910191293.5A CN101699943B (en) | 2009-10-30 | 2009-10-30 | Connection device of tillage knife of mini-tiller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910191293.5A CN101699943B (en) | 2009-10-30 | 2009-10-30 | Connection device of tillage knife of mini-tiller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101699943A true CN101699943A (en) | 2010-05-05 |
| CN101699943B CN101699943B (en) | 2015-01-21 |
Family
ID=42154880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910191293.5A Active CN101699943B (en) | 2009-10-30 | 2009-10-30 | Connection device of tillage knife of mini-tiller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101699943B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10150802A (en) * | 1996-11-21 | 1998-06-09 | Mitsubishi Agricult Mach Co Ltd | Attachment structure for tillage tine |
| CN201185552Y (en) * | 2008-04-28 | 2009-01-28 | 常州东风农机集团有限公司 | Changeable knife roller device of multifunctional rotary tillage implement |
| CN201274639Y (en) * | 2008-09-06 | 2009-07-22 | 催广瑜 | Rotavator knife shaft and power shaft connecting structure |
| CN201623970U (en) * | 2009-10-30 | 2010-11-10 | 隆鑫工业有限公司 | Connection device for tilling cutter of mini-tiller |
-
2009
- 2009-10-30 CN CN200910191293.5A patent/CN101699943B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10150802A (en) * | 1996-11-21 | 1998-06-09 | Mitsubishi Agricult Mach Co Ltd | Attachment structure for tillage tine |
| CN201185552Y (en) * | 2008-04-28 | 2009-01-28 | 常州东风农机集团有限公司 | Changeable knife roller device of multifunctional rotary tillage implement |
| CN201274639Y (en) * | 2008-09-06 | 2009-07-22 | 催广瑜 | Rotavator knife shaft and power shaft connecting structure |
| CN201623970U (en) * | 2009-10-30 | 2010-11-10 | 隆鑫工业有限公司 | Connection device for tilling cutter of mini-tiller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101699943B (en) | 2015-01-21 |
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