CN203387955U - Clutch and deceleration mechanism of pruning machine - Google Patents
Clutch and deceleration mechanism of pruning machine Download PDFInfo
- Publication number
- CN203387955U CN203387955U CN201320444686.4U CN201320444686U CN203387955U CN 203387955 U CN203387955 U CN 203387955U CN 201320444686 U CN201320444686 U CN 201320444686U CN 203387955 U CN203387955 U CN 203387955U
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- clutch
- motor
- speed reducer
- pinion stand
- deceleration mechanism
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Abstract
The utility model relates to the technical field of garden greening equipment, in particular to a clutch and deceleration mechanism of a pruning machine. The clutch and deceleration mechanism of the pruning machine comprises a center support, a motor and a transmission deceleration mechanism; the motor is connected onto the center support by a bearing, and the transmission deceleration mechanism is connected between an output shaft of the motor and a blade; a transmission shaft is arranged on the center support, a gear seat is sleeved on the transmission shaft, an eccentric gear which is matched with the blade is arranged at the lower end of the gear seat, and the gear seat is fittingly connected with the transmission deceleration mechanism by a clutch mechanism. The clutch and deceleration mechanism has the advantages that the motor and three deceleration gears are carried by the center support, so that two stages of deceleration transmission connection can be established, the eccentric gear drives the blade to carry out reciprocating cutting movement, and the clutch and deceleration mechanism is reasonable and compact in structure, small in size and convenient to use; automatic and manual unloading protection is implemented on a transmission mechanism, so that burning of the motor due to jamming of hard articles can be prevented, impact is low when the motor is started, and the clutch and deceleration mechanism can integrally run stably and reliably.
Description
Technical field
The utility model relates to afforestation equipment technical field, particularly a kind of clutch speed reducer structure of pruner.
Background technology
Pruner is a kind ofly by motor, to be driven, and converts upper and lower blade to move back and forth by eccentric wheel rotatablely moving, and is used for cutting the instrument of various shrubs, hedgerow.Along with people pay attention to gradually to the Greening problem of environment, the pruning maintenance of Urban vegetation cover also increases thereupon, and efficiently pruner becomes a kind of indispensable greening instrument easily.
Electric trimmer is in the market of a great variety, configurations, generally comprise frame, motor, cutting blade, motor is connected with cutting blade by transmission speed reducer structure, and flowers and trees are pruned in the reciprocating motion that by eccentric wheel, rotatablely moving of motor is converted into blade on transmission speed reducer structure.Pruner can be blocked by some hard things in the process of pruning, and as do not shut down in time often easy motor damage of unloading, so on some pruners, is provided with circuit overloads protection or unloading mechanism.But still have the following disadvantages, the more mechanism of global facility is complicated, the excessive use inconvenience of volume, the stability of transmission and unloading protecting function have to be strengthened.Therefore, be necessary current technology to improve.
Utility model content
The purpose of this utility model is for the defect of prior art and deficiency, provides a kind of compactness rational in infrastructure, the clutch speed reducer structure of the reliable and stable pruner that turns round.
For achieving the above object, the utility model is by the following technical solutions:
The clutch speed reducer structure of a kind of pruner described in the utility model, comprises center bearing bracket, by bearing, is connected to the motor on center bearing bracket, is connected in the output shaft of motor and the transmission speed reducer structure between blade; Described center bearing bracket is provided with power transmission shaft, is arranged with pinion stand on power transmission shaft, and pinion stand lower end is provided with the eccentric wheel coordinating with blade, and pinion stand is connected by clutch and transmission speed reducer structure.
Further, described transmission speed reducer structure comprises the one-level gear being sheathed on pinion stand, and with the secondary gear of one-level gear engagement, with the tertiary gear of the output shaft engagement of motor, and secondary gear and tertiary gear are all coupling on same connecting axle.
Further, described clutch comprises brake block, torsion spring, drag ring and butterfly spring, one-level gear, drag ring, butterfly spring are enclosed within the outer rim of pinion stand successively, and brake block is sheathed between pinion stand and power transmission shaft, and brake block and butterfly spring conflict; Torsion spring one end is connected with eccentric wheel through pinion stand, and the upper end of torsion spring is connected with brake block.
Further, the outer rim of described pinion stand is provided with annular halfpace, and the bottom surface of one-level gear and annular halfpace are conflicted, and in the outer rim of annular halfpace, have breach, and the inner ring of drag ring is provided with the projection being connected with annular halfpace.
Further, described eccentric wheel is provided with buckle, and blade is fixed and is sheathed on eccentric wheel by buckle.
The utility model beneficial effect is: the utility model carries motor and three reduction gearing by center bearing bracket, forming double reduction is in transmission connection, and then making eccentric wheel band knife section carry out reciprocal cutting movement, compactness rational in infrastructure, volume are less, use convenient; Transmission mechanism is provided with automatic and manual unloading protecting, prevents from that hard thing from blocking to cause motor damage, impacts little ， mechanism overall operation more reliable and more stable during electric motor starting.
Accompanying drawing explanation
Fig. 1 is whole blast structural representation of the present utility model;
Fig. 2 is integral installation distribution structure schematic diagram of the present utility model.
In figure:
10, center bearing bracket; 11, power transmission shaft; 20, motor; 21, output shaft;
22, flywheel; 23, bearing; 30, blade; 40, transmission speed reducer structure;
41, one-level gear; 42, secondary gear; 43, tertiary gear; 44, pinion stand;
44a, halfpace; 44b, breach; 45, eccentric wheel; 46, buckle;
47, connecting axle; 51, brake block; 52, torsion spring; 53, butterfly spring;
54, drag ring, 54a, projection.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
The clutch speed reducer structure of a kind of pruner described in the utility model, comprise center bearing bracket 10, by bearing 23, be connected to the motor 20 on center bearing bracket 10, be connected in the output shaft 21 of motor 20 and the transmission speed reducer structure 40 between blade 30, rotatablely moving of motor 20 changed the reciprocating cutting action of blade 30 into via transmission speed reducer structure 40; Described center bearing bracket 10 is provided with the power transmission shaft 11 that coordinates transmission speed reducer structure 40 for connecting, on power transmission shaft 11, be arranged with pinion stand 44, pinion stand 44 lower ends are provided with the eccentric wheel 45 coordinating with blade 30, pinion stand 44 carries out rotation centered by power transmission shaft 11, and then be with movable eccentric wheel 45 to revolve round the sun around power transmission shaft 11, blade 30 links are provided with the orbit hole coordinating with eccentric wheel 45 and move back and forth to realize; Pinion stand 44 is connected by clutch and transmission speed reducer structure 40, and clutch departs from driving-chain after blocked by hard thing, to protect the safety of motor and overall operation.
Described transmission speed reducer structure 40 comprises the one-level gear 41 being sheathed on pinion stand 44, secondary gear 42 with 41 engagements of one-level gear, with the tertiary gear 43 of output shaft 21 engagement of motor 20, and secondary gear 42 and tertiary gear 43 are all coupling on same connecting axle 47; The number of teeth of described one-level gear 41, tertiary gear 43, secondary gear 42, output shaft 21 is successively decreased successively, and motor 20 is by output shaft 21, tertiary gear 43, secondary gear 42, one-level gear 41, pinion stand 44, clutch, eccentric wheel 45 blade 30 that is in transmission connection successively.
Described clutch comprises brake block 51, torsion spring 52, drag ring 54 and butterfly spring 53, one-level gear 41, drag ring 54, butterfly spring 53 are enclosed within the outer rim of pinion stand 44 successively, brake block 51 is sheathed between pinion stand 44 and power transmission shaft 11, and brake block 51 is conflicted with butterfly spring 53; Torsion spring 52 one end are connected with eccentric wheel 45 through pinion stand 44, and torsion spring 52 upper end is connected with brake block 51; Butterfly spring 53 provides axial active force to drag ring 54, drag ring 54 is coordinated with pinion stand 44 with one-level gear 41 and form interlock, pinion stand 44 rotates and makes eccentric wheel 45 rotations and then torsion spring 52 and brake block 51 are rotated thereupon, the hand of spiral of torsion spring 52 is consistent with direction of rotation, when load surpasses the frictional force that butterfly spring 53 and drag ring 54 provide, between pinion stand 44 and one-level gear 41, skidding to realize unloads; During hand brake, by brake bar, make brake block 51 stalls, torsion spring 52 shortens makes butterfly spring 53 distortion, and then makes to skid and realize unloading between pinion stand 44 and one-level gear 41.
The outer rim of described pinion stand 44 is provided with annular halfpace 44a, and one-level gear 41 bottom surface and annular halfpace 44a conflict, and have breach 44b in the outer rim of annular halfpace 44a, and the inner ring of drag ring 54 is provided with the protruding 54a being connected with annular halfpace 44a.
Described eccentric wheel 45 is provided with buckle 46, and blade 30 is fixed and is sheathed on eccentric wheel 45 by buckle 46.
The above is only better embodiment of the present utility model, and the equivalence of doing according to structure, feature and principle described in the utility model patent claim therefore all changes or modifies, and is included in the utility model patent claim.
Claims (5)
1. the clutch speed reducer structure of a pruner, comprise center bearing bracket (10), by bearing (23), be connected to the motor (20) on center bearing bracket (10), be connected in the output shaft (21) of motor (20) and the transmission speed reducer structure (40) between blade (30); It is characterized in that: described center bearing bracket (10) is provided with power transmission shaft (11), on power transmission shaft (11), be arranged with pinion stand (44), pinion stand (44) lower end is provided with the eccentric wheel (45) coordinating with blade (30), and pinion stand (44) is connected by clutch and transmission speed reducer structure (40).
2. the clutch speed reducer structure of pruner according to claim 1, it is characterized in that: described transmission speed reducer structure (40) comprises the one-level gear (41) being sheathed on pinion stand (44), secondary gear (42) with one-level gear (41) engagement, with the tertiary gear (43) of output shaft (21) engagement of motor (20), and secondary gear (42) and tertiary gear (43) are all coupling on same connecting axle (47).
3. the clutch speed reducer structure of pruner according to claim 2, it is characterized in that: described clutch comprises brake block (51), torsion spring (52), drag ring (54) and butterfly spring (53), one-level gear (41), drag ring (54), butterfly spring (53) are enclosed within the outer rim of pinion stand (44) successively, brake block (51) is sheathed between pinion stand (44) and power transmission shaft (11), and brake block (51) is conflicted with butterfly spring (53); Torsion spring (52) one end is connected with eccentric wheel (45) through pinion stand (44), and the upper end of torsion spring (52) is connected with brake block (51).
4. the clutch speed reducer structure of pruner according to claim 3, it is characterized in that: the outer rim of described pinion stand (44) is provided with annular halfpace (44a), the bottom surface of one-level gear (41) and annular halfpace (44a) are conflicted, in the outer rim of annular halfpace (44a), have breach (44b), the inner ring of drag ring (54) is provided with the projection (54a) being connected with annular halfpace (44a).
5. the clutch speed reducer structure of pruner according to claim 1, is characterized in that: described eccentric wheel (45) is provided with buckle (46), and blade (30) is fixed and is sheathed on eccentric wheel (45) by buckle (46).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320444686.4U CN203387955U (en) | 2013-07-23 | 2013-07-23 | Clutch and deceleration mechanism of pruning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320444686.4U CN203387955U (en) | 2013-07-23 | 2013-07-23 | Clutch and deceleration mechanism of pruning machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203387955U true CN203387955U (en) | 2014-01-15 |
Family
ID=49899525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320444686.4U Expired - Lifetime CN203387955U (en) | 2013-07-23 | 2013-07-23 | Clutch and deceleration mechanism of pruning machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203387955U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103782813A (en) * | 2014-01-17 | 2014-05-14 | 宁波爱乐吉电动工具有限公司 | Electric pruning shears |
| CN105909749A (en) * | 2016-06-23 | 2016-08-31 | 苏州金莱克精密机械有限公司 | Overload protection mechanism and hedge trimmer using same |
| CN105987144A (en) * | 2015-02-25 | 2016-10-05 | 南京德朔实业有限公司 | Garden-class tool and drive system thereof |
| CN107996176A (en) * | 2018-01-16 | 2018-05-08 | 王龙 | Pruning machine |
-
2013
- 2013-07-23 CN CN201320444686.4U patent/CN203387955U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103782813A (en) * | 2014-01-17 | 2014-05-14 | 宁波爱乐吉电动工具有限公司 | Electric pruning shears |
| CN103782813B (en) * | 2014-01-17 | 2015-12-09 | 宁波爱乐吉电动工具有限公司 | Electric shrub and hedge trimmer |
| CN105987144A (en) * | 2015-02-25 | 2016-10-05 | 南京德朔实业有限公司 | Garden-class tool and drive system thereof |
| CN105987144B (en) * | 2015-02-25 | 2018-06-29 | 南京德朔实业有限公司 | Garden class tool and its transmission system |
| CN105909749A (en) * | 2016-06-23 | 2016-08-31 | 苏州金莱克精密机械有限公司 | Overload protection mechanism and hedge trimmer using same |
| CN107996176A (en) * | 2018-01-16 | 2018-05-08 | 王龙 | Pruning machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |
|
| CX01 | Expiry of patent term |