CN200956743Y - Stepless gearing grass cutter - Google Patents
Stepless gearing grass cutter Download PDFInfo
- Publication number
- CN200956743Y CN200956743Y CN 200620031196 CN200620031196U CN200956743Y CN 200956743 Y CN200956743 Y CN 200956743Y CN 200620031196 CN200620031196 CN 200620031196 CN 200620031196 U CN200620031196 U CN 200620031196U CN 200956743 Y CN200956743 Y CN 200956743Y
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- China
- Prior art keywords
- belt pulley
- shaft
- split type
- type belt
- wheel
- 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.)
- Expired - Fee Related
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Abstract
This utility model discloses a stepless shifting crop cutter, which comprises a framework, on which a motor, a movable blade plate, an upper grass feeding roll shaft, and a lower grass feeding roll shaft are provided. The framework is provided with a shifting shaft connected with the lower grass feeding roll shaft by the driving way, a blade shaft is connected with the shifting shaft through a belt pulley stepless shifting driving machine by the driving way. The belt pulley stepless shifting driving machine comprises a driving split-type belt pulley arranged on the blade shaft, a driven split-type belt pulley arranged on the shifting shaft and a belt. The driving split-type belt pulley and the driven split-type belt pulley are composed of inner half wheels and outer half wheels which insert each other and slide axially, the belt is arranged between the wheel edges of the inner half wheels and the outer half wheels. One side of the driving split-type belt pulley is arranged with a clutch machine which can change the spacing of the wheel edges of the two half wheels. A handle is hinged on the framework and connected with the clutch machine through a connecting rod machine by the driving way. One side of the driven split-type belt pulley is arranged with a spring reposition machine that can axially frap the spacing of the wheel edges of the two half wheels for impacting the belt.
Description
Technical field
The utility model relates to the agriculture and animal husbandry field of mechanical technique, especially a kind of infinitely variable speeds hay cutter.
Background technology
Existing hay cutter generally comprise drive motors, transmission mechanism, cutterhead, on send careless roller, send careless roller down, in use, driven cutterhead and upper and lowerly sent careless roller to rotate by drive motors, forage send careless roller to be delivered to the movable knife disc place by upper and lower, and the movable knife disc that is rotated is pulverized; Cut up with a hay cutter disconnected length in order to regulate forage, existing hay cutter generally adopts speed-changing gear box to regulate the upper and lower mode of the rotating speed of careless roller of sending and realizes, in actual applications, under send careless roller with on send careless roller Synchronous Transmission to be connected, the output of drive motors through speed-changing gear box again with under send careless roller to be in transmission connection, can obtain the upper and lower several different rotating speed that send careless roller by the gearratio of regulating gearbox, thereby obtain the forage of several different lengths; But the speed change gear of gearbox is limited, generally can only obtain the forage of three kinds of specifications, can not satisfy the requirement of all peasant households, and the gearbox cost is higher, and its change-speed gearing wearing and tearing back maintenance is difficulty relatively.
The utility model content
The purpose of this utility model is to provide a kind of upper and lower infinitely variable speeds hay cutter that send careless roller continuously variable.
The technical solution of the utility model is: a kind of infinitely variable speeds hay cutter, comprise frame, motor is housed on the frame, movable knife disc, on send careless roll shaft, under send careless roll shaft, the output shaft of motor and the cutter shaft of movable knife disc are in transmission connection, on, under send careless roll shaft to connect by the gear Synchronous Transmission, be equipped with on the described frame and the following variable-speed shaft that send careless roller to be in transmission connection, cutter shaft is in transmission connection by belt pulley infinitely variable speed gearing and variable-speed shaft, described belt pulley infinitely variable speed gearing comprises the split type belt pulley of the active that is installed on the cutter shaft, be installed in passive split type belt pulley and belt on the variable-speed shaft, initiatively split type belt pulley and passive split type belt pulley all are to be made of interior half wheel and outer half wheel that endwisely slip to inserting, belt is assemblied between interior partly wheel and the outer wheel edge of partly taking turns, initiatively a side of split type belt pulley is provided with and can changes the clutch of two half wheel of taking turns along spacing, handle is hinged on the frame, this handle is in transmission connection by linkage and clutch, a side of driven split type belt pulley be provided with can axially tighten up two and half wheels of taking turns along spacing to compress the spring reset mechanism of belt.
The clutch of one side setting of the split type belt pulley of described active is by partly the clutch pawl seat and the clutch pawl cover at the back side of wheel constitute in being installed in, the periphery of clutch pawl seat is that circumferential wedge shape pawl, center are the sleeve pipe that is sleeved on the cutter shaft, clutch pawl cover movable set is on the sleeve pipe of clutch pawl seat, the clutch pawl put be provided with can with the involutory wedge shape pawl of the wedge shape pawl clutch of clutch pawl seat, the clutch pawl puts and is fixed with driving lever, and driving lever is in transmission connection by linkage and handle; Interior half wheel of clutch pawl cover and the split type belt pulley of active) be equipped with thrust bearing between, the outside of outer half wheel of the split type belt pulley of described active is provided with the end cap that is fixed on the cutter shaft, and end cap is fixed on the termination of cutter shaft by screw.
Described handle is to be hinged on the stator by its terminal activity template, and stator is fixed on the frame, and the handle middle part is hinged with connecting rod, and the driving lever that connecting rod and clutch pawl put is hinged.
Described variable-speed shaft is installed on the frame by bearing, the bearing block of bearing is installed on the frame by clip, the spring reset mechanism of one side setting of described driven split type belt pulley comprises that axial activity is arranged in the motion bar in the variable-speed shaft, one end of motion bar is fixed with spiral-lock door on half outer face of taking turns outside passive type divides belt pulley body, the other end of motion bar passes variable-speed shaft and is installed with spring pressuring plate by nut, is supported with spring on the motion bar between spring pressuring plate and bearing.
Described active minute belt pulley body and passive type divide the periphery of interior half wheel of belt pulley body to be the domatic wheel to be the sleeve pipe that can be sleeved on each axis of rotation along, center, and active minute belt pulley body and passive type divide the periphery of outer half wheel of belt pulley body to be the domatic wheel to be the sleeve pipe of partly taking turns in movable being sleeved on the sleeve outer wall along, center; Be equipped with axial key between the internal surface of sleeve pipe of half wheel and each axis of rotation in described, be equipped with axial key between the internal surface of sleeve pipe of the sleeve outer wall of half wheel and outer half wheel in described, be respectively equipped with the sliding keyway corresponding on the internal surface of sleeve pipe of interior half wheel and on the internal surface of sleeve pipe of outer half wheel with key.
The utility model utilizes the belt pulley infinitely variable speed gearing to replace original gear-box gear to change the upper and lower rotating speed that send careless roll shaft, thereby can adjust the length of the forage that cuts up with a hay cutter arbitrarily, and can control the rotation work that the belt overload realizes stopping to send careless roller by handle, can realize that the moment under the fortuitous event stops into grass, the utility model just can the regulated at will speed change in the middle of hay cutter running, adjusting range is big, and adaptability is strong.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the mounting structure schematic diagram of driven split type belt pulley;
Fig. 3 is the mounting structure schematic diagram of the split type belt pulley of active on the cutter axis.
Embodiment
As Fig. 1, Fig. 2, shown in Figure 3, motor 4 is housed on the frame 41, movable knife disc 43 is contained on the cutter shaft 1, and cutter shaft 1 is assemblied on the frame 41 by bearing 24, and an end of cutter shaft 1 is equipped with sprocket wheel 5, and the output shaft of motor 4 is in transmission connection by chain 6 and sprocket wheel 5; The other end of cutter shaft 1 is equipped with initiatively split type belt pulley 7, initiatively split type belt pulley 7 is partly to take turns 71 and partly take turns 72 outward and constitute by interior, in partly to take turns 71 periphery be domatic wheel edge, the center is the sleeve pipe that is sleeved on the cutter shaft 1, outer 72 the periphery of partly taking turns is domatic wheel edge, the center is that movable set is at interior sleeve pipe of partly taking turns on the sleeve outer wall, in partly take turns between 71 internal surface of sleeve pipe and the cutter shaft and be equipped with axial key 36, in partly take turns 71 sleeve outer wall and partly take turns outward between 72 the internal surface of sleeve pipe and be equipped with axial key 37, in partly take turns on 71 the internal surface of sleeve pipe and outer partly the wheel on 72 the internal surface of sleeve pipe is respectively equipped with and key 36, the sliding keyway of 37 correspondences, partly taking turns 71 in making can be on cutter shaft 1, in partly take turns on 72 and endwisely slip, outer 72 the outside of partly taking turns is provided with end cap 34, end cap 34 is fixed on the termination of cutter shaft 1 by screw 35, end cap 34 can stop outer partly takes turns 72 and initiatively split type belt pulley 7 is whole outwards moves, be provided with clutch pawl mechanism in interior 71 the back side of partly taking turns on the cutter shaft 1, clutch pawl mechanism is made of the clutch pawl seat 31 and the clutch pawl cover 32 that are fixed on bearing 24 shells, the periphery of clutch pawl seat 31 is circumferential wedge shape pawl, the center is the sleeve pipe that is sleeved on the cutter shaft 1, the clutch pawl overlaps 32 movable sets on the sleeve pipe of clutch pawl seat 31, clutch pawl cover 32 be provided with can with the involutory wedge shape pawl of the wedge shape pawl clutch of clutch pawl seat, also be fixed with the driving lever 16 of rotatable clutch pawl cover 32 on the clutch pawl cover 32; Be hinged with handle 14 on the frame 41, handle 14 is to be hinged on the stator 18 by its terminal activity template 17, stator 18 is fixed on the frame 41, handle 14 middle parts are hinged with connecting rod 15, connecting rod 15 is hinged with driving lever 16 on the clutch pawl cover 32, and clutch pawl cover 32 and the split type belt pulley 7 of active interior is equipped with thrust bearing 33 between partly taking turns 71.
Also be equipped with on the frame 41, under send careless roll shaft 3,2, on, under send careless roll shaft 3, be separately installed with on 2, under send careless roller 13,12, on, under send careless roll shaft 3,2 by its gear 39 with side, 40 are connected by meshing transmission, send an end assembling gear 11 of careless roll shaft 2 down, below in gear 11 on the frame 41 is rotatably equipped with variable-speed shaft 9 by bearing 19, the bearing block of bearing 19 is installed on the frame by clip 42, in actual use, the installation site of adjustable bearings 19, side in bearing 19 on variable-speed shaft on the frame 9 is fixed with and descends to send the gear on the careless roll shaft 2 11 meshed gears 10, also be equipped with passive split type belt pulley 8 in the outside of gear 10 on the variable-speed shaft 9, belt 26 has been linked and packed on initiatively split type belt pulley 7 and passive split type belt pulley 8, passive type divides belt pulley body 8 basic identical with the structure of the split type belt pulley 7 of active, be by be sleeved on interior on the variable-speed shaft 9 partly take turns 81 and be sleeved in partly take turns outer on 81 and partly take turns 82 and constitute, in partly take turns between 81 inwall and the variable-speed shaft 9 and be equipped with axial key 28, in partly take turns 81 sleeve outer wall and partly take turns outward between 82 the internal surface of sleeve pipe and be equipped with axial key 29, outer 82 the internal surface of sleeve pipe of partly taking turns is provided with the sliding keyway corresponding with key 29, partly taking turns 82 outside making can endwisely slip interior partly the wheel on 81, axially be equipped with motion bar 22 in the variable-speed shaft 9, one end of motion bar 22 is fixed with door 27, door 27 spiral-locks are partly taken turns outside passive type divides belt pulley body 8 on 82 the outer face, the other end of motion bar 22 passes variable-speed shaft 9 and is installed with spring pressuring plate 21 by nut 23, between spring pressuring plate 21 and bearing 19, be supported with spring 20 on the motion bar 22, under the elastic force effect of spring 20, spring pressuring plate 21 can inwardly spur motion bar 22 and door 27, divide belt pulley body the 8 whole pulling force that produce to the inside to passive type, thereby what make that passive type divides belt pulley body 8 interiorly partly takes turns 81 and abuts against on the gear 10 and can not move axially, and makes partly to take turns 82 and abut against all the time on the belt 26 and when speed change and can adjust the driven pulley radius outward.
The utility model is when work, drive cutter shaft 1 rotation by motor 4, cutter shaft 1 is by initiatively split type belt pulley 7, belt 26 drive driven pulley 8 rotations, driven split type belt pulley 8 drives variable-speed shaft 9 rotations at its center, send gear 11 on the careless roll shaft 2 to make down under gear 10 engaged transmission on the variable-speed shaft 9 and send careless roller 40 to rotate, send down on the careless roll shaft 2 gear 12 with on send the gear on the careless roll shaft 3 13 engaged transmission, make send careless roller 39 with under send careless roller 40 to rotate synchronously, forage is transported to movable knife disc 41 places between the careless roller 39,40 and is cut off upper and lower sending.Under original state, clutch pawl cover 32 and 31 pairs of clutch pawl seats lump together, and the rotating speed of driven split type belt pulley 8 is a minimum of a value, and it is also minimum to go out careless length.When needs strengthen out the length of forage, pulling handle 14 drivening rods 15 makes driving lever 16 stir clutch pawl cover 32 to rotate on the center sleeve of clutch pawl seat 31, under the effect of the wedge shape pawl between clutch pawl cover 32 and the clutch pawl seat 31, clutch pawl cover 32 separates with clutch pawl seat 31, and move axially and outwards pushing tow thrust bearing 33 and initiatively split type belt pulley 7 interior partly take turns 71 and outwards move, partly take turns under 71 the extruding interior, the degree in belt pulley 26 cross sections diminishes and highly becomes big, thereby make the diameter of belt 26 on the split type belt pulley 7 of active become big, because the belt pulley girth is certain, when the diameter on the split type belt pulley 7 of active becomes big, belt 26 on the driven split type belt pulley 8 overcome spring 20 pulling force and outwards the top pushing tow partly take turns 82 outward, the cross section degree of belt pulley 26 on driven split type belt pulley 8 become to diminish greatly and highly, thereby the diameter of belt 26 on driven split type belt pulley 8 diminished, make the gearratio of two belt pulleys become the rotating speed that improves driven split type belt pulley 8 greatly, in driven split type belt pulley 8 interlocks, under send careless roller 39, the also corresponding increase of 40 rotating speed, thereby add express delivery grass speed, send careless speed fast more, institute's forage that cuts up with a hay cutter out is just long more, can realize by pulling handle 14 back and forth, under send careless roller 39, the step-less adjustment of 40 rotating speeds realizes out the adjusting of careless length simultaneously.
In actual use, can regulate the tensile force that variable-speed shaft 9 and driven split type belt pulley 8 and the spacing of split type belt pulley 7 are initiatively regulated belt 26 by the installation site of regulating bearing 19, to regulate the ultimate load of pulley transmission mechanism, under suitable ultimate load, pull handle 14 to the extreme position diameter that is belt on split type belt pulley 7 initiatively when maximum, the transmitted load that can realize belt goes beyond the limit of load and skids, driven split type belt pulley 8 is stopped operating immediately, can finish the stall protection by handle 14; Certainly, regulating the tensile force of belt 26 can also be by adding bearing wheels, change belt, adding multiple current techique such as belt radical and realize.
Claims (5)
1, a kind of infinitely variable speeds hay cutter, comprise frame (41), motor (4) is housed on the frame (41), movable knife disc (43), on send careless roll shaft (13), under send careless roll shaft (12), the cutter shaft (1) of the output shaft of motor (4) and movable knife disc (43) is in transmission connection, on, under send careless roll shaft (13,12) connect by the gear Synchronous Transmission, it is characterized in that: be equipped with on the described frame (41) and the following careless roller variable-speed shaft that (12) are in transmission connection (9) that send, cutter shaft (1) is in transmission connection by belt pulley infinitely variable speed gearing and variable-speed shaft (9), described belt pulley infinitely variable speed gearing comprises the split type belt pulley of active (7) that is installed on the cutter shaft (1), be installed in passive split type belt pulley (8) and belt (26) on the variable-speed shaft (9), initiatively split type belt pulley (7) and passive split type belt pulley (8) all are to be made of interior half wheel and outer half wheel that endwisely slip to inserting, belt (26) is assemblied between interior partly wheel and the outer wheel edge of partly taking turns, initiatively a side of split type belt pulley (7) is provided with and can changes the clutch of two half wheel of taking turns along spacing, frame (41) goes up hinge handle (14), this handle (14) is in transmission connection by linkage and clutch, a side of driven split type belt pulley (8) be provided with can axially tighten up two and half wheels of taking turns along spacing to compress the spring reset mechanism of belt.
2, infinitely variable speeds hay cutter according to claim 1, it is characterized in that: the clutch of a side setting of the split type belt pulley of described active (7) is to be made of the clutch pawl seat (31) at the back side of half wheel (71) in being installed in and clutch pawl cover (32), the periphery of clutch pawl seat (31) is circumferential wedge shape pawl, the center is for being sleeved on the sleeve pipe on the cutter shaft (1), clutch pawl cover (32) movable set is on the sleeve pipe of clutch pawl seat (31), clutch pawl cover (32) be provided with can with the involutory wedge shape pawl of the wedge shape pawl clutch of clutch pawl seat, be fixed with driving lever (16) on the clutch pawl cover (32), driving lever (16) is in transmission connection by linkage and handle (14); Be equipped with thrust bearing (33) between interior half wheel (71) of clutch pawl cover (32) and the split type belt pulley of active (7), the outside of outer half wheel (72) of the split type belt pulley of described active (7) is provided with the end cap (34) that is fixed on the cutter shaft (1), and end cap (34) is fixed on the termination of cutter shaft (1) by screw (35).
3, infinitely variable speeds hay cutter according to claim 2, it is characterized in that: described handle (14) is to be hinged on the stator (18) by its terminal activity template (17), stator (18) is fixed on the frame (41), handle (14) middle part is hinged with connecting rod (15), and the driving lever (16) on connecting rod (15) and the clutch pawl cover (32) is hinged.
4, according to any described infinitely variable speeds hay cutter in the claim 1～3, it is characterized in that: described variable-speed shaft (9) is installed on the frame (41) by bearing (19), the bearing block of bearing (19) is installed on the frame (41) by clip (42), the spring reset mechanism of one side setting of described driven split type belt pulley (8) comprises that axial activity is arranged in the motion bar (22) in the variable-speed shaft (9), one end of motion bar (22) is fixed with the door (27) on the outer face of spiral-lock half wheel (82) outside passive type divides belt pulley body (8), the other end of motion bar (22) passes variable-speed shaft (9) and is installed with spring pressuring plate (21) by nut (23), and motion bar (22) is gone up and be supported with spring (20) between spring pressuring plate (21) and bearing (19).
5, infinitely variable speeds hay cutter according to claim 4, it is characterized in that: described active minute belt pulley body (7) and passive type divide the periphery of interior half wheel (71,81) of belt pulley body (8) to be the domatic wheel to be the sleeve pipe that can be sleeved on each axis of rotation along, center, and active minute belt pulley body (7) and passive type divide the periphery of outer half wheel (72,82) of belt pulley body (8) to be the domatic wheel to be half sleeve pipe of taking turns on (71,81) sleeve outer wall in movable being sleeved on along, center; Be equipped with axial key between the internal surface of sleeve pipe of half wheel (71,81) and each axis of rotation in described, be equipped with axial key between the internal surface of sleeve pipe of the sleeve outer wall of half wheel (71,81) and outer half wheel (72,82) in described, be respectively equipped with the sliding keyway corresponding on the internal surface of sleeve pipe of interior half wheel (71,81) and on the internal surface of sleeve pipe of outer half wheel (72,82) with key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620031196 CN200956743Y (en) | 2006-08-24 | 2006-08-24 | Stepless gearing grass cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620031196 CN200956743Y (en) | 2006-08-24 | 2006-08-24 | Stepless gearing grass cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200956743Y true CN200956743Y (en) | 2007-10-10 |
Family
ID=38783617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620031196 Expired - Fee Related CN200956743Y (en) | 2006-08-24 | 2006-08-24 | Stepless gearing grass cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200956743Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033551A (en) * | 2014-06-16 | 2014-09-10 | 上海应用技术学院 | Chuck type stepless speed changing mechanism |
| CN108076873A (en) * | 2017-12-15 | 2018-05-29 | 佳木斯大学 | A kind of shredding mechanism and its control method of staple fiber ppd stepless adjustable silage harvester |
-
2006
- 2006-08-24 CN CN 200620031196 patent/CN200956743Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033551A (en) * | 2014-06-16 | 2014-09-10 | 上海应用技术学院 | Chuck type stepless speed changing mechanism |
| CN108076873A (en) * | 2017-12-15 | 2018-05-29 | 佳木斯大学 | A kind of shredding mechanism and its control method of staple fiber ppd stepless adjustable silage harvester |
| CN108076873B (en) * | 2017-12-15 | 2023-08-22 | 佳木斯大学 | Shredding device of silage harvester and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071010 Termination date: 20110824 |