CN109451996A - A kind of gear of lawn machine - Google Patents
A kind of gear of lawn machine Download PDFInfo
- Publication number
- CN109451996A CN109451996A CN201811573910.3A CN201811573910A CN109451996A CN 109451996 A CN109451996 A CN 109451996A CN 201811573910 A CN201811573910 A CN 201811573910A CN 109451996 A CN109451996 A CN 109451996A
- Authority
- CN
- China
- Prior art keywords
- wheel
- belt
- rotor plate
- semi
- gear
- 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
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 29
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 abstract 1
- 230000008859 change Effects 0.000 description 8
- 230000006872 improvement Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000009333 weeding Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D69/00—Driving mechanisms or parts thereof for harvesters or mowers
- A01D69/06—Gearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/02—Gearings for conveying rotary motion by endless flexible members with belts; with V-belts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The invention discloses a kind of gears of lawn machine, including drive pulley, belt and driven pulley, tensioning apparatus is connected on the belt, the driven pulley is set on transmission shaft, the driven pulley is made of fixed semi-wheel and active semi-wheel, the fixed semi-wheel is fixed on the transmission shaft, the active semi-wheel slides axially on the transmission shaft, the active semi-wheel is far from being connected with the second elastic device on the end face of fixed semi-wheel, the tensioning apparatus includes rotor plate, is provided with tensioning wheel on the rotor plate；Its advantage is that speed changing structure of the invention is simple, is easy to use, at low cost, easy maintenance and installation.
Description
Technical field
The present invention relates to lawn machine more particularly to a kind of gears of lawn machine.
Background technique
Lawn machine is mainly used for weeding, is internally provided with engine, and the cutter rotation of lawn machine, wheel roll dynamic automatically
Power both generally is from engine, and the revolving speed of engine is very fast and invariablenes turning speed, it is therefore desirable to carry out to the revolving speed of engine output
Reduction of speed is to reach suitable range.Occur realizing the structure of speed change by belt pulley at present, the belt pulley of variable-ratio is divided into solid
Fixed end and mobile terminal adjust the distance of mobile terminal and fixing end to change the radius of gyration of belt and reach.Adjust mobile terminal position
The mode set generally uses: 1, motor drives, and structure is complicated for the method, higher cost；2, detaching equipment carries out position with hand
It is mobile, speed change can not be carried out at any time during use.
Summary of the invention
Speed change can be facilitated technical problem to be solved by the invention is to provide one kind and simply a kind of lawn machine of structure
Gear.
The technical scheme of the invention to solve the technical problem is: a kind of gear of lawn machine, including master
Belt pulley, belt and driven pulley are moved, is connected with tensioning apparatus on the belt, the driven pulley is set in transmission shaft
On, the driven pulley is made of fixed semi-wheel and active semi-wheel, and the fixed semi-wheel is fixed on the transmission shaft, described
Active semi-wheel slides axially on the transmission shaft, and the active semi-wheel is elastic far from being connected with second on the end face of fixed semi-wheel
Device, the tensioning apparatus include rotor plate, are provided with tensioning wheel on the rotor plate.When the rotor plate rotates, described
Bearing up pulley pulls belt, and belt pushes the active semi-wheel open, and the active semi-wheel increases at a distance from fixed semi-wheel, the rotation of belt
Radius reduces, and transmission ratio variation, structure is simple, and easy to assembly, cost is relatively low, can carry out the change of transmission ratio as required in real time
Change.
Compared to the further improvement of above scheme, it is rotatably connected to transit plate on the rotor plate, the one of the transit plate
End is connected with one end of rotor plate by the first elastic device, and the other end of the transit plate is connected with bracing wire.The bracing wire is drawn
The transit plate rotation is moved, and the rotor plate rotation is pulled by first elastic device, structure is simple.
Compared to the further improvement of above scheme, the rotor plate is conllinear with the pivot center of transit plate, and structure is simple, holds
Easily assembly.
Compared to the further improvement of above scheme, is corresponded on the transit plate at the position of the belt and be provided with second
Anti-dropout bar, belt dropping when preventing from changing transmission velocity ratio.
Compared to the further improvement of above scheme, it is provided at least two tensioning wheel on the rotor plate, adjacent described
Bearing up pulley is located at the two sides of belt, increases the amount of tension of belt.
Compared to the further improvement of above scheme, the other side on the rotor plate corresponding to belt is provided with the first anticreep
Bar is fallen, the first anti-dropout bar is located on the outside of belt, prevents belt dropping.
Compared with prior art, it is an advantage of the invention that the bracing wire pulls transit plate, rotate the transit plate, institute
It states the second elastic device on transit plate and drives the rotor plate rotation, the tensioning wheel tightening belt on the rotor plate, belt
It struts the sliding end of the driven pulley and the close transmission shaft, the radius of gyration of the belt on the belt slave wheel subtracts
Small, the transmission ratio variation of the drive pulley and driven pulley, the variation ratio of transmission ratio can pass through the drawing of the bracing wire
Momentum is controlled.The speed change gear speed changing structure is simple, and manufacture assembly is simple, and at low cost, gear ratio is more accurate.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is top view of the invention.
Fig. 3 is driven pulley and structural schematic diagram interconnected of the invention.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
Fig. 1 is the structural diagram of the present invention, as shown, a kind of gear of lawn machine, including drive pulley
1, belt 2 and driven pulley 3.Output of the drive pulley 1 in such a way that key is driven with engine or motor
End is attached and transmits power, and the contact surface of the drive pulley 1 and belt 2 is V-shaped.The belt 2 is wrapped in described
On drive pulley 1 and driven pulley 3, the rotation under the driving of engine or motor of drive pulley 1, and lead to
It crosses the belt 2 and drives driven pulley 3, by power from engine or motor to the component of needs such as transmission shaft
33。
The driven pulley 3 is made of fixed semi-wheel 31 and active semi-wheel 32.The driven pulley 3 is set in transmission
On axis 33.Fig. 3 is shown in the connection of driven pulley 3 and transmission shaft 33.The transmission shaft 33 is in hexa-prism, the driven pulley
3 inner hole cross section is hexagonal, corresponding with the transmission shaft 33, when the driven pulley 3 rotation, the driven skin
Belt wheel 3 will drive the transmission shaft 33 to rotate.The side at 33 both ends of transmission shaft is both provided with annular groove, on the annular groove
It is provided with axis circlip 36.The axis is with being connected with baffle, fixed semi-wheel 31, active semi-wheel 32, first in turn between circlip 36
Elastic device 9 and limited block 35.The axis on 33 right side of transmission shaft is connected with baffle with 36 side of circlip, the baffle
Diameter is greater than axis circlip 36, and the baffle can preferably limit fixed semi-wheel 31.The baffle is far from circlip
End face be connected with the fixed semi-wheel 31.The fixed semi-wheel 31 is towards the active semi-wheel 32 and the side that contacts with belt 2
Face is inclined-plane, and the active semi-wheel 32 is towards the fixed semi-wheel 31 and the side that contacts with belt 2 is inclined-plane, the fixation half
Two inclined-planes opposite with active semi-wheel 32 of wheel 31 form V-type.On end face of the active semi-wheel 32 far from the fixed semi-wheel 31
Be provided with positioning column, be arranged with second elastic device 34 on the locating shaft, one end of second elastic device 34 with
The end face of the active semi-wheel 32 connects, and the other end of second elastic device 34 is connected with limited block 35, the limited block
35 towards the active semi-wheel 32 end face on be provided with the blind hole that diameter and 34 outer diameter of the second elastic device be adapted,
One end of second elastic device 34 is located in blind hole and is connected with the limited block 35.The limited block 35 is far from described
The end face of second elastic device 34 is connected with axis circlip 36.When standing, second elastic device 34 is by the active semi-wheel
32 are tightly attached in the fixed semi-wheel 31, and prevent from being detached from by the axis circlip 36 of 37 two sides of rotation axis.It is described solid
Fixed half wheel 31 is fixed on the transmission shaft 33 under the action of the active semi-wheel 32 and axis circlip 36, indirectly fixed
On the transmission shaft 33.
The transmission shaft 33 has rotation axis 37, the rotation axis by screw connection close to one end of the fixed semi-wheel 31
37 one end is provided with worm screw 38, is connected with worm gear 39 on the worm screw 38, and power is carried out the transformation on direction.The worm gear
Power on 39 can reach on the wheel of lawn machine, realize the variation of wheel movement velocity, different using crowd's to adapt to
Feature.
Tensioning apparatus is connected on the belt 2, the tensioning apparatus is located at the drive pulley 1 and driven pulley
Between 3.The tensioning apparatus includes rotor plate 4, is provided with 2 tensioning wheels 6 on the rotor plate 4, and the tensioning wheel 6 can be with
The movement of belt 2 rotates together.The groove of annular is provided on the outer circumference surface of the tensioning wheel 6, the belt 2 is located at described
In the groove of annular.2 tensioning wheels 6 are located at the inner side and outer side of belt 2.First is fixed on the rotor plate 4
Anti-dropout bar 11, the first anti-dropout bar 11 are normal screws, and it is only terminally positioned have screw thread, and be threadedly secured to
On the rotor plate 4.
Rotation circular hole 7 is provided on the rotor plate 4, the rotor plate 4 is done around the symmetry axis of the rotation circular hole 7 to be revolved
Turn.The driver plate is simultaneously connected with transit plate 8 at rotation circular hole 7, and the transit plate 8 can be around the rotation circular hole 7
Symmetry axis is rotated.The transit plate 8 is connected with the first elastic device 9, the first elasticity dress close to one end of tensioning wheel 6
9 other end is set to be connected with the rotor plate 4.The junction of first elastic device 9 and the rotor plate 4 is located at, institute
State the one end of rotor plate 4 far from rotation circular hole 7.The transit plate 8 is connected with bracing wire 10 far from one end of rotation circular hole 7.It is described
The one end of bracing wire 10 far from the transit plate 8 can connecting rod or knob bracing wire 10 is pulled or is loosened.In described
It is corresponded on rotating plate 8 at 2 external position of belt and is provided with the second anti-dropout bar 12.The second anti-dropout bar 12 passes through spiral shell
Line and nut are fixed on the transit plate 8.When the bracing wire 10 is unclamped, the belt 2 is by 3 edge of driven pulley
When radial direction is pushed open, the belt 2 is more loose, is easy to slip, therefore the outside of the belt 2 is provided with 11 He of the first anti-dropout bar
Second anti-dropout bar 12.
Simply illustrated the working principle of the invention below: when needing to accelerate, the bracing wire 10 pulls transit plate
8, rotate the transit plate 8, the second elastic device 34 on the transit plate 8 drives the rotor plate 4 to rotate, the rotation
6 tightening belt 2 of tensioning wheel on plate 4, belt 2 strut the sliding end of the driven pulley 3 and close to the transmission shaft 33, skins
The radius of gyration with 2 on 2 driven wheel of belt reduces, and the transmission ratio of the drive pulley 1 and driven pulley 3 becomes
Change, the variation ratio of transmission ratio can be controlled by the pulling amount of the bracing wire 10；When needing reduction of speed, the bracing wire is unclamped
10, the amount of tension of belt 2 is reduced, the active semi-wheel 32 under the action of the second elastic device 34 by belt 2 radially
It pushes out, the radius of gyration of the belt 2 increases.
Claims (6)
1. a kind of gear of lawn machine, including drive pulley (1), belt (2) and driven pulley (3), the belt
(2) tensioning apparatus is connected on, follower belt (2) wheel (3) is set on transmission shaft (33), the driven pulley (3)
It is made of fixed semi-wheel (31) and active semi-wheel (32), the fixed semi-wheel (31) is fixed on the transmission shaft (33), described
Active semi-wheel (32) slides axially on the transmission shaft (33), end face of the active semi-wheel (32) far from fixed semi-wheel (31)
On be connected with the second elastic device (34), which is characterized in that the tensioning apparatus includes rotor plate (4), on the rotor plate (4)
It is provided with tensioning wheel (6).
2. a kind of gear of lawn machine as described in claim 1, which is characterized in that the company of rotation on the rotor plate (4)
It is connected to transit plate (8), one end of the transit plate (8) is connected with one end of rotor plate (4) by the first elastic device (9), institute
The other end for stating transit plate (8) is connected with bracing wire (10).
3. a kind of gear of lawn machine as claimed in claim 2, which is characterized in that the rotor plate (4) and transit plate
(8) rotation axis (37) line is conllinear.
4. a kind of gear of lawn machine as claimed in claim 2, which is characterized in that corresponded on the transit plate (8)
The second anti-dropout bar (12) is provided at the position of the belt (2).
5. a kind of gear of lawn machine as described in claim 1, which is characterized in that be provided on the rotor plate (4)
At least two tensioning wheel (6), the adjacent tensioning wheel (6) are located at the two sides of belt (2).
6. a kind of gear of lawn machine as described in claim 1, which is characterized in that corresponded on the rotor plate (4)
The other side of belt (2) is provided with the first anti-dropout bar (11), and the first anti-dropout bar (11) is located on the outside of belt (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811573910.3A CN109451996A (en) | 2018-12-21 | 2018-12-21 | A kind of gear of lawn machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811573910.3A CN109451996A (en) | 2018-12-21 | 2018-12-21 | A kind of gear of lawn machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109451996A true CN109451996A (en) | 2019-03-12 |
Family
ID=65614275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811573910.3A Pending CN109451996A (en) | 2018-12-21 | 2018-12-21 | A kind of gear of lawn machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109451996A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110100580A (en) * | 2019-05-21 | 2019-08-09 | 东北大学 | A kind of maize sheller with speed-regulating function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190715166A (en) * | 1907-07-01 | 1908-07-01 | Herbert James Rake | Improvements in and connected with the Tightening or Slackening of Driving Belts for Motor-propelled Cycles, Cars, and the like. |
| CN200956739Y (en) * | 2006-10-13 | 2007-10-10 | 扬州维邦园林机械厂 | Stepless walking gear for self-moving lawn-mower |
| CN202370355U (en) * | 2011-05-18 | 2012-08-08 | 陈明强 | Anti-deflection single-guide-rail sheave type electric glass lifter |
| CN203040121U (en) * | 2012-12-18 | 2013-07-10 | 重庆华世丹机械制造有限公司 | Novel rear-mounted rotary cultivator |
| CN203851505U (en) * | 2014-04-18 | 2014-10-01 | 绍兴古原机械有限公司 | Continuously variable transmission device for lawn mower |
| CN209299764U (en) * | 2018-12-21 | 2019-08-27 | 宁波翠科机械有限公司 | A kind of gear of lawn machine |
-
2018
- 2018-12-21 CN CN201811573910.3A patent/CN109451996A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190715166A (en) * | 1907-07-01 | 1908-07-01 | Herbert James Rake | Improvements in and connected with the Tightening or Slackening of Driving Belts for Motor-propelled Cycles, Cars, and the like. |
| CN200956739Y (en) * | 2006-10-13 | 2007-10-10 | 扬州维邦园林机械厂 | Stepless walking gear for self-moving lawn-mower |
| CN202370355U (en) * | 2011-05-18 | 2012-08-08 | 陈明强 | Anti-deflection single-guide-rail sheave type electric glass lifter |
| CN203040121U (en) * | 2012-12-18 | 2013-07-10 | 重庆华世丹机械制造有限公司 | Novel rear-mounted rotary cultivator |
| CN203851505U (en) * | 2014-04-18 | 2014-10-01 | 绍兴古原机械有限公司 | Continuously variable transmission device for lawn mower |
| CN209299764U (en) * | 2018-12-21 | 2019-08-27 | 宁波翠科机械有限公司 | A kind of gear of lawn machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110100580A (en) * | 2019-05-21 | 2019-08-09 | 东北大学 | A kind of maize sheller with speed-regulating function |
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