CN102537111A - Normally-open friction clutch for hand mini tiller - Google Patents
Normally-open friction clutch for hand mini tiller Download PDFInfo
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- CN102537111A CN102537111A CN2012100213009A CN201210021300A CN102537111A CN 102537111 A CN102537111 A CN 102537111A CN 2012100213009 A CN2012100213009 A CN 2012100213009A CN 201210021300 A CN201210021300 A CN 201210021300A CN 102537111 A CN102537111 A CN 102537111A
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- clutch
- friction sheet
- input shaft
- double
- screw bolt
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Abstract
The invention discloses a normally-open friction clutch for a hand mini tiller, which is composed of an end face cam thrust assembly, a normally-open clutch assembly and a transmission belt wheel. The transmission belt wheel is installed on an input shaft of a gear box through a bearing, the normally-open clutch assembly is connected with the input shaft of the gear box through a spline transmission structure, and the end face thrust assembly is sleeved on the input shaft of the gear box and a gear box body. A separation claw of the end face thrust assembly can be driven by an operation mechanism to rotate to move axially to push a clutch disk of the normally-open assembly to enable friction disks in a clutch to combine and separate. The transmission belt wheel can transmit power on the input shaft of the gear box through combination of friction disks in the clutch, the purpose of holding to cultivate and loosening to shut down is achieved when the mini tiller is operated, and national standards (GB10395.10-2006), namely requirements for hand mini tiller in the<agriculture and forestry tractor and mechanical safety technique requirements>, can be met.
Description
Technical field
The present invention relates to a kind of agricultural hand steered microtilling machine with often opening dry friction clutch.
Background technique
Mostly the clutch of existing hand steered microtilling machine is the Normally closed type clutch, i.e. during microtilling machine work, and when not holding Joystick, the microtilling machine walking, the rotation of rotary tillage cutter, microtilling machine stops when holding Joystick, and the rotary tillage cutter stops operating.This does not meet among State Standard of the People's Republic of China/GB10395.10-2006 " agricultural tractor and Machinery Safety Technology require " has following requirement to hand steered microtilling machine: the safety requirement of " operator's hand leave Joystick after, make cutter stop moving the commentaries on classics automatically ".For this reason, each manufacturer all seeking new method, realizes this goal.
Summary of the invention:
The present invention proposes a kind of new hand steered microtilling machine clutch, and it can not be initially in the row of the sky state of transferring power, maintains the gap between the dry type asbestos friction sheet in the clutch component, the metal friction sheet; Can not transmitting torque; Need apply external force makes dry type asbestos friction sheet, metal friction sheet fit tightly the simple in structure, easy to manufacture, easy to install of ability transmitting torque; Flexible operation, safe and reliable a kind of hand steered microtilling machine is often driven friction clutch
Technical solution of the present invention is such: a kind of hand steered microtilling machine is often driven friction clutch; Comprise the cam thrust force assembly, often open clutch component, powered pulley; It is characterized in that often opening clutch component, the cam thrust force assembly is installed in the powered pulley inner chamber; Often open clutch component front end mounting cam thrust assembly, be equipped with on the gearbox input shaft external diameter and often open clutch component, cam thrust force assembly and powered pulley, powered pulley is contained on the gearbox through bearing; Often open clutch component and link to each other with the gearbox input shaft through the spline drive mechanism, the cam thrust force assembly is sleeved on the gearbox input shaft.
There is splined hole to be connected in the middle of the cam thrust force assembly with the spline of gearbox input shaft.
Gearbox input shaft end is equipped with set screw nut and its external diameter bearing is housed, the bearing outside diameter powered pulley endoporus of packing into, and cam thrust force assembly internal diameter is installed in gearbox input shaft external diameter.
The double-screw bolt of clutch wheel passes the threaded stud hole of metal friction sheet and passes the second interior circle of dry type asbestos friction sheet, and its external diameter has the nested groove of recessed pawl nested with the dog of powered pulley.
Often open clutch component clutch wheel, double-screw bolt, metal friction sheet, dry type asbestos friction sheet, reseting pressuring spring, stage clip guide pillar, drive plate, slotted nut, cotter pin are housed, drive plate is a plate-like, and there is splined hole at the center; A plurality of double-screw bolt through holes are arranged on the card, and be shaped on the stage clip guide pillar vertical with card, the dry type asbestos friction sheet is a ring plate; The outer be shaped on can be nested with the dog of powered pulley groove, circle is smooth in second, the metal friction sheet also is a ring plate; Threaded stud hole and the through hole that can hold stage clip guide pillar and reseting pressuring spring are arranged on ring; Circle is smooth in first, and clutch wheel is a sheet, and there is smooth inner bore at the center; Be shaped on vertical double-screw bolt in clutch wheel end face side, be drilled with the cotter pin pilot hole on the double-screw bolt.Double-screw bolt is inserted in the threaded stud hole of metal friction sheet, and slotted nut is fastened on the double-screw bolt, and penetrates cotter pin, leaves the gap between asbestos friction sheet and the metal friction sheet.
The stage clip guide pillar of drive plate penetrates in the reseting pressuring spring inner chamber, and passes the through hole of metal friction sheet, the second interior circle of dry type asbestos friction sheet.
Advantage of the present invention is that the drive plate center is shaped on the drive splines hole, is shaped on threaded stud hole and vertical stage clip guide pillar on the card.The clutch wheel center is shaped on smooth hole, is shaped on the double-screw bolt vertical with card on the card.The metal friction sheet is a ring plate, is shaped on a plurality of through holes corresponding with double-screw bolt and the through hole that can hold stage clip guide pillar and reseting pressuring spring on the ring, and interior circle is smooth.The dry type asbestos friction sheet also is a ring plate, the outer be shaped on can be nested with the dog of powered pulley groove.Metal friction sheet and dry type asbestos friction sheet alternately stack are inserted in the double-screw bolt.Reseting pressuring spring is inserted on the stage clip guide pillar on the drive plate, is encased in together on the double-screw bolt, and slotted nut is screwed into double-screw bolt, and cotter pin is inserted in gap between adjustment dry type asbestos friction sheet, the metal friction sheet.Simple and practical, easy to manufacture, easy to install, safe and reliable, flexible operation, low cost of manufacture, energy-saving and cost-reducing.
Description of drawings
Fig. 1 often opens the friction clutch schematic representation for a kind of hand steered microtilling machine of the present invention.
Fig. 2 often drives friction clutch for a kind of hand steered microtilling machine of the present invention and often opens the clutch component schematic representation.
Fig. 3 often opens friction clutch metal friction sheet schematic representation for the present invention really points out a kind of hand steered microtilling machine.
Fig. 4 often opens friction clutch dry type asbestos friction sheet schematic representation for a kind of hand steered microtilling machine of the present invention.
Among Fig. 1～Fig. 4, cam thrust force assembly (1), often open in the clutch component (2), powered pulley (3), clutch wheel (4), double-screw bolt (5), metal friction sheet (6), dry type asbestos friction sheet (7), reseting pressuring spring (8), stage clip guide pillar (9), drive plate (10), slotted nut (11), cotter pin (12), double-screw bolt through hole (13), splined hole (14), card (15), pilot hole (16), clutch wheel end face (17), smooth inner bore (18), through hole (19), first circle (22), groove (23), gearbox input shaft (25) in circle (20), the threaded stud hole (21), second.
Embodiment:
Most preferred embodiment of the present invention is such, and with reference to accompanying drawing, referring to Fig. 1, microtilling machine of the present invention is often driven the dry type multi-disc friction clutch by end cam thrust assembly (1); Often open clutch component (2), powered pulley (3) is formed, and often opens clutch component (2) by clutch wheel (4), double-screw bolt (5); Metal friction sheet (6), dry type asbestos friction sheet (7), reseting pressuring spring (8), stage clip guide pillar (9); Drive plate (10), slotted nut (11), cotter pin (12) constitutes.Drive plate (10) is a plate-like, and the center is shaped on splined hole (14), is shaped on double-screw bolt through hole (13) on the card (15), and is shaped on the stage clip guide pillar (9) vertical with card (15); Dry type asbestos friction sheet (7) is a ring plate, the outer be shaped on can be nested with the dog of powered pulley (3) groove (23), circle (22) is smooth in second; Metal friction sheet (6) also is a ring plate, on ring, is shaped on threaded stud hole (21) and a plurality of through hole (19) that can hold stage clip guide pillar (9) and reseting pressuring spring (8), and the first interior circle (20) is smooth; Clutch wheel (4) is a sheet, and the center is shaped on smooth inner bore (18), is shaped on vertical double-screw bolt (5) in clutch wheel end face (17) side, is drilled with cotter pin (12) pilot hole (16) on the double-screw bolt (5).Double-screw bolt (5) is inserted in the double-screw bolt through hole (13) of metal friction sheet (6), and slotted nut (11) is fastened on many double-screw bolts (5), and penetrates many cotter pins (12), prevents to rotate to get loose.During assembling, metal friction sheet (6) and alternately stack of dry type asbestos friction sheet (7), what the double-screw bolt through hole (13) of drive plate (10) was corresponding is inserted in the double-screw bolt (5).Reseting pressuring spring (8) is inserted in the stage clip guide pillar (9) of drive plate (10); Double-screw bolt through hole (13) on drive plate (10), the corresponding together drive plate of reseting pressuring spring (8) (10) is encased in double-screw bolt (5); Reseting pressuring spring (8) is inserted in the through hole (19) of corresponding metal friction sheet (6); Slotted nut (11) is screwed into double-screw bolt (5), and cotter pin (12) is inserted in gap between adjustment dry type asbestos friction sheet (7), the metal friction sheet (6).When manipulating; Holding Joystick makes end cam thrust assembly (1) produce end thrust; Promote clutch wheel (4) and compress dry type asbestos friction sheet (7) and metal friction sheet (6), powered pulley (3) arrives transmission of power on the gearbox input shaft (25) through asbestos friction sheet (7).Unclamp Joystick, gapped between dry type asbestos friction sheet (7) under the effect of reseting pressuring spring (8) and metal friction sheet (6), can not transferring power, gearbox input shaft (25) stops operating.Satisfy the effect that reaches " hold ploughing and weeding, loose one's grip and promptly stop " when handling microtilling machine in the GB (GB10395.10-2006) " agricultural tractor and machine security require ".
Claims (6)
1. a hand steered microtilling machine is often driven friction clutch; Comprise the cam thrust force assembly, often open clutch component, powered pulley; It is characterized in that often opening clutch component (2), cam thrust force assembly (1) is installed in powered pulley (3) inner chamber; Often open clutch component (2) front end mounting cam thrust assembly (1), be equipped with on gearbox input shaft (25) external diameter and often open clutch component (2), cam thrust force assembly (1) and powered pulley (3), powered pulley (3) is contained on the gearbox through bearing; Often open clutch component (2) and link to each other with gearbox input shaft (25) through the spline drive mechanism, cam thrust force assembly (1) is sleeved on the gearbox input shaft (25).
2. often drive friction clutch according to the described a kind of hand steered microtilling machine of claim 1, it is characterized in that having splined hole (14) to be connected in the middle of the cam thrust force assembly (2) with the spline of gearbox input shaft (25).
3. often drive friction clutch according to the described a kind of hand steered microtilling machine of claim 1; It is characterized in that set screw nut is equipped with in gearbox input shaft (25) end and its external diameter is equipped with bearing; Bearing outside diameter powered pulley (3) endoporus of packing into, cam thrust force assembly (1) internal diameter is installed in gearbox input shaft (25) external diameter.
4. often drive friction clutch according to the described a kind of hand steered microtilling machine of claim 1; It is characterized in that the double-screw bolt (5) of clutch wheel (4) passes the threaded stud hole (21) of metal friction sheet (6); With the second interior circle (22) that passes dry type asbestos friction sheet (7), its external diameter has the nested groove of recessed pawl (23) nested with the dog of powered pulley (3).
5. often drive friction clutch according to the described a kind of hand steered microtilling machine of claim 1; It is characterized in that often opening clutch component (2) is equipped with clutch wheel (4), double-screw bolt (5), metal friction sheet (6), dry type asbestos friction sheet (7), reseting pressuring spring (8), stage clip guide pillar (9), drive plate (10), slotted nut (11), cotter pin (12), drive plate (10) and is plate-like; There is splined hole (14) at the center; A plurality of double-screw bolt through holes (13) are arranged on the card (15), and be shaped on the stage clip guide pillar (9) vertical with card (15); Dry type asbestos friction sheet (7) is a ring plate, the outer be shaped on can be nested with the dog of powered pulley (3) groove (23), circle (22) is smooth in second; Metal friction sheet (6) also is a ring plate, on ring, threaded stud hole (21) is arranged and can hold stage clip guide pillar (9) and the through hole (19) of reseting pressuring spring (8), and the first interior circle (20) is smooth; Clutch wheel (4) is a sheet; There is smooth inner bore (18) at the center, is shaped on vertical double-screw bolt (5) in clutch wheel end face (17) side, is drilled with cotter pin (12) pilot hole (16) on the double-screw bolt (5); Double-screw bolt (5) is inserted in the threaded stud hole (13) of metal friction sheet (6); Slotted nut (11) is fastened on the double-screw bolt (5), and penetrates cotter pin (12), leaves the gap between asbestos friction sheet and the metal friction sheet.
6. often drive friction clutch according to the described a kind of hand steered microtilling machine of claim 1; The stage clip guide pillar (9) that it is characterized in that drive plate (10) penetrates in reseting pressuring spring (8) inner chamber; And pass the through hole (19) of metal friction sheet (6), dry type asbestos friction sheet (7) second in circle (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100213009A CN102537111A (en) | 2012-01-31 | 2012-01-31 | Normally-open friction clutch for hand mini tiller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100213009A CN102537111A (en) | 2012-01-31 | 2012-01-31 | Normally-open friction clutch for hand mini tiller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102537111A true CN102537111A (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100213009A Pending CN102537111A (en) | 2012-01-31 | 2012-01-31 | Normally-open friction clutch for hand mini tiller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102537111A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI466631B (en) * | 2012-09-03 | 2015-01-01 | ||
| CN106402186A (en) * | 2016-11-23 | 2017-02-15 | 广西宏兴机械有限公司 | Clutch capable of immediately stopping after hand leaving |
| CN106912213A (en) * | 2017-02-23 | 2017-07-04 | 洛阳理工学院 | A kind of dry type friction plate PTO and its control method for agricultural machinery |
| CN107387672A (en) * | 2017-08-22 | 2017-11-24 | 重庆市柯森汽车配件有限责任公司 | A kind of planetary reduction gear transmission component |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2085443U (en) * | 1990-12-21 | 1991-09-25 | 张庆录 | Clutch |
| CN201393374Y (en) * | 2009-05-12 | 2010-02-03 | 重庆银福机械制造有限公司 | Normally-opened clutch for hand cultivator |
-
2012
- 2012-01-31 CN CN2012100213009A patent/CN102537111A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2085443U (en) * | 1990-12-21 | 1991-09-25 | 张庆录 | Clutch |
| CN201393374Y (en) * | 2009-05-12 | 2010-02-03 | 重庆银福机械制造有限公司 | Normally-opened clutch for hand cultivator |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI466631B (en) * | 2012-09-03 | 2015-01-01 | ||
| CN106402186A (en) * | 2016-11-23 | 2017-02-15 | 广西宏兴机械有限公司 | Clutch capable of immediately stopping after hand leaving |
| CN106912213A (en) * | 2017-02-23 | 2017-07-04 | 洛阳理工学院 | A kind of dry type friction plate PTO and its control method for agricultural machinery |
| CN107387672A (en) * | 2017-08-22 | 2017-11-24 | 重庆市柯森汽车配件有限责任公司 | A kind of planetary reduction gear transmission component |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120704 |