CN203570943U - Rotating shaft type gear shifting control mechanism - Google Patents
Rotating shaft type gear shifting control mechanism Download PDFInfo
- Publication number
- CN203570943U CN203570943U CN201320802659.XU CN201320802659U CN203570943U CN 203570943 U CN203570943 U CN 203570943U CN 201320802659 U CN201320802659 U CN 201320802659U CN 203570943 U CN203570943 U CN 203570943U
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- China
- Prior art keywords
- rotating shaft
- handlebar
- arm
- pull bar
- transmission arm
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- Expired - Lifetime
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- 230000007246 mechanism Effects 0.000 title claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 230000033001 locomotion Effects 0.000 claims abstract description 12
- 239000004677 Nylon Substances 0.000 claims description 8
- 229920001778 nylon Polymers 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 4
- 230000000452 restraining effect Effects 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 244000098674 Pinus cembroides Species 0.000 description 1
- 235000005013 Pinus cembroides Nutrition 0.000 description 1
- 235000008591 Pinus cembroides var edulis Nutrition 0.000 description 1
- 235000015593 Pinus monophylla Nutrition 0.000 description 1
- 235000015594 Pinus parryana Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Gear-Shifting Mechanisms (AREA)
Abstract
The utility model discloses a rotating shaft type gear shifting control mechanism, comprising a speed changing box shift fork shaft (2), a gear shifting arm (3), a pull rod (5), a rotating shaft seat (7), a rotating shaft (17), a transmission arm (18) and a handle lever (12), wherein the rotating shaft seat (7) is fixed on a rack girder (8); the rotating shaft (17) is arranged on the rotating shaft seat (7) in a rotating way; the handle lever (12) is connected with one end of the rotating shaft (17); the transmission arm (18) is connected with the other end of the rotating shaft (17); the gear shifting arm (3) is fixed on the speed changing box shift fork shaft (2); the pull rod (5) is connected between the transmission arm (18) and the gear shifting arm (3); the handle lever (12) drives the transmission arm (18) to do the circular motion on a vertical face by means of the rotating shaft (17); the transmission arm (18) drives the gear shifting arm (3) to do the circular motion on a horizontal face by means of the pull rod (5), and enables the speed changing box shift fork shaft (2) to rotate. After the structure is adopted, the rotating shaft type gear shifting control mechanism has the advantages of simple and compact structure, handiness in use and operation, good rigidity, stable and reliable working, long service life, elegant appearance and the like.
Description
Technical field
The utility model relates to a kind of gearshift control gear, the revolution axis type gearshift control gear particularly using on a kind of graden machine and other machine.
Background technique
Along with social development and progress, the lawn area of public greening is more and more, and in order to raise labour efficiency, faster and better that turf-mown is smooth, various lawn machines arise at the historic moment.As use the lawn machine of speed-changing gear box back axle, the structure that its selector gear adopts is: on frame main beam or frame plate, set firmly a bearing pin, bearing pin is provided with the shift lever that can rotate around it; The shifting fork shafts of gearbox of speed-changing gear box back axle is provided with shift arm, between shift lever and shift arm, is connected with pull bar; Shift lever drives shift arm to move by pull bar, and shifting fork shafts of gearbox is rotated, thereby realizes the object of change wheel gear.The shortcoming of this structure: the one, bearing pin is less, and poor rigidity also has the sliding potential unreliability of nut pine when bearing pin adopts fastening nuts; Secondly, limited to by frame main beam, frame plate position, shift pull bar two ends movement locus angle is large, so pull bar must be made curved shape, rigidity is poor, but also will use joint shaft bearing; In addition, shift lever is in frame plate inner side, and Joystick is in frame plate outside, so shift lever need will be opened the larger fan shaped borehole in a place through frame plate on frame plate, not only affected intensity but also not attractive in appearance.For this reason, many manufacturers and knowledgeable people are studied and develop for the problems referred to above, but not yet have so far more rational product to emerge.
Summary of the invention
The problems referred to above that exist for overcoming existing lawn machine gearshift control gear, the purpose of this utility model is to provide that a kind of simple and compact for structure, operation is used that light, good rigidly, working stability are reliable, long service life, revolution axis type gearshift control gear elegant in appearance.
The utility model solves the technological scheme that its technical problem adopts, and it comprises the shifting fork shafts of gearbox, shift arm, the pull bar that are arranged on speed-changing gear box back axle, is fixed on shaft seat, rotating shaft, transmission arm, handlebar on frame main beam; Described shaft seat is fixed on frame main beam, rotating shaft is arranged on shaft seat rotationally, handlebar is connected to one end of rotating shaft, transmission arm is connected to the other end of rotating shaft, shift arm is fixed on shifting fork shafts of gearbox, pull bar is connected between transmission arm and shift arm, and handlebar drives transmission arm to do the circular motion of vertical surface by rotating shaft, and transmission arm drives shift arm do the circular motion of horizontal plane and shifting fork shafts of gearbox is rotated by pull bar.
Between described pull bar and shift arm, be connected with rod head, rod head is hinged on shift arm, and pull bar is fixed on by screw-thread fit on the screw of rod head, and pull bar is by its action length of threaded adjusting.
Between described handlebar and rotating shaft, be provided with bindiny mechanism, this mechanism comprises frid, pin, transverse tube, and frid is fixedly connected with rotating shaft, and transverse tube is hinged on frid by pin, and handlebar is fixed on transverse tube, and on handlebar, cover has handle.
Described frame main beam is provided with frame plate, and frame plate is provided with spacing frid; Between handlebar and frid, be provided with torsion spring, torsion spring leans against all the time on the restraining groove of spacing frid handlebar under nature.
Between described shaft seat and rotating shaft, be provided with nylon lining, shaft seat and the corresponding opening that can make rotating shaft stick into that is provided with on nylon lining.
Adopt after said structure, there are compared with the prior art following advantage and effect: the one, handlebar drives the circular motion of transmission arm vertical surface by rotating shaft, transmission arm is driven the circular motion of shift arm horizontal plane and is driven shifting fork shafts of gearbox to rotate by pull bar, during shift operation, movement range is little, flexible operation is light, has greatly improved handling.The 2nd, due to transmission part shift arm, pull bar, rotating shaft, transmission arm, handlebar good rigidly, stable drive is reliable, long service life.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model.
Fig. 2 is that the utility model Fig. 1 removes the schematic top plan view after frame plate and spacing frid.
Fig. 3 is the utility model shaft seat and nylon lining cooperating structure schematic diagram.
1 speed-changing gear box back axle wherein, 2 shifting fork shafts of gearboxes, 3 shift arms, 4 rod heads, 5 pull bars, 6 nylon linings, 7 shaft seats, 8 frame main beams, 9 frame plates, 10 spacing frids, 11 handles, 12 handlebars, 13 torsion springs, 14 transverse tubes, 15 pins, 16 frids, 17 rotating shafts, 18 transmission arms.
Embodiment
Fig. 1, shown in Fig. 2 and Fig. 3, specific embodiments for the utility model revolution axis type gearshift control gear, it comprises the shifting fork shafts of gearbox 2 being arranged on speed-changing gear box back axle 1, shift arm 3, pull bar 5, be fixed on the shaft seat 7 on frame main beam 8, rotating shaft 17, transmission arm 18, handlebar 12, speed-changing gear box back axle 1 is fixed on frame main beam 8 belows, described shaft seat 7 is fixed on frame main beam 8, rotating shaft 17 is arranged on shaft seat 7 rotationally, handlebar 12 is connected to one end of rotating shaft 17 by bindiny mechanism, transmission arm 18 is fixedly connected on the other end of rotating shaft 17, shift arm 3 is fixed on shifting fork shafts of gearbox 2, pull bar 5 is hinged between transmission arm 18 and shift arm 3, during shift operation, handlebar 12 drives transmission arm 18 to do the circular motion of vertical surface by rotating shaft 17, transmission arm 18 drives shift arm 3 to do the circular motion of horizontal plane by pull bar 5, shift arm 3 drives shifting fork shafts of gearbox 2 to rotate, thereby realize gears conversion.
For the action length of regulating tie bar 5, between described pull bar 5 and shift arm 3, be connected with rod head 4, rod head 4 is hinged on shift arm 3, and pull bar 5 is fixed on by screw-thread fit on the screw of rod head 4, and pull bar 5 is by its action length of threaded adjusting.In order to make compact structure, elegant in appearance, between described handlebar 12 and rotating shaft 17, be provided with bindiny mechanism, this mechanism comprises frid 16, pin 15, transverse tube 14, frid 16 is fixedly connected with rotating shaft 17, transverse tube 14 is hinged on frid 16 by pin 15, handlebar 12 is fixed on transverse tube 14, and on handlebar 12, cover has handle 11.In order to guarantee that nature lower handle bar 12 leans against on the restraining groove of spacing frid 10 all the time, described frame main beam 8 is provided with frame plate 9, and frame plate 9 is provided with spacing frid 10; Between handlebar 12 and frid 16, be provided with torsion spring 13, the torsion of torsion spring 13 leans against on the restraining groove of spacing frid 10 handlebar 12 all the time.In order to facilitate rotating shaft 17 to install, between described shaft seat 7 and rotating shaft 17, be provided with nylon lining 6, shaft seat 7 and the corresponding opening that can make rotating shaft 17 stick into that is provided with on nylon lining 6.
The above; be an embodiment of the present utility model, not the utility model made to any pro forma restriction, do not departing from the technical solution of the utility model basis; the simple modification of having done, equivalent variations or modification, all fall into protection domain of the present utility model.
Claims (5)
1. a revolution axis type gearshift control gear, comprises the shifting fork shafts of gearbox (2), shift arm (3), the pull bar (5) that are arranged on speed-changing gear box back axle (1), is fixed on shaft seat (7), rotating shaft (17), transmission arm (18), handlebar (12) on frame main beam (8), it is characterized in that: described shaft seat (7) is fixed on frame main beam (8), rotating shaft (17) is arranged on shaft seat (7) rotationally, handlebar (12) is connected to one end of rotating shaft (17), transmission arm (18) is connected to the other end of rotating shaft (17), shift arm (3) is fixed on shifting fork shafts of gearbox (2), pull bar (5) is connected between transmission arm (18) and shift arm (3), handlebar (12) drives transmission arm (18) to do the circular motion of vertical surface by rotating shaft (17), transmission arm (18) is driven shift arm (3) to do the circular motion of horizontal plane and shifting fork shafts of gearbox (2) is rotated by pull bar (5).
2. revolution axis type gearshift control gear according to claim 1, it is characterized in that: between described pull bar (5) and shift arm (3), be connected with rod head (4), rod head (4) is hinged on shift arm (3), pull bar (5) is fixed on by screw-thread fit on the screw of rod head (4), and pull bar (5) is by its action length of threaded adjusting.
3. revolution axis type gearshift control gear according to claim 1, it is characterized in that: between described handlebar (12) and rotating shaft (17), be provided with bindiny mechanism, this mechanism comprises frid (16), pin (15), transverse tube (14), frid (16) is fixedly connected with rotating shaft (17), transverse tube (14) is hinged on frid (16) by pin (15), it is upper that handlebar (12) is fixed on transverse tube (14), and the upper cover of handlebar (12) has handle (11).
4. according to the revolution axis type gearshift control gear described in claim 2 or 3, it is characterized in that: described frame main beam (8) is provided with frame plate (9), frame plate (9) is provided with spacing frid (10); Between handlebar (12) and frid (16), be provided with torsion spring (13), torsion spring (13) leans against all the time on the restraining groove of spacing frid (10) handlebar (12) under nature.
5. revolution axis type gearshift control gear according to claim 4, it is characterized in that: between described shaft seat (7) and rotating shaft (17), be provided with nylon lining (6), shaft seat (7) and the upper corresponding opening that can make rotating shaft (17) stick into that is provided with of nylon lining (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320802659.XU CN203570943U (en) | 2013-12-10 | 2013-12-10 | Rotating shaft type gear shifting control mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320802659.XU CN203570943U (en) | 2013-12-10 | 2013-12-10 | Rotating shaft type gear shifting control mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203570943U true CN203570943U (en) | 2014-04-30 |
Family
ID=50538675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320802659.XU Expired - Lifetime CN203570943U (en) | 2013-12-10 | 2013-12-10 | Rotating shaft type gear shifting control mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203570943U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500726A (en) * | 2014-11-28 | 2015-04-08 | 重庆华世丹机械制造有限公司 | Spring positioning device for forward gear and reverse gear |
-
2013
- 2013-12-10 CN CN201320802659.XU patent/CN203570943U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500726A (en) * | 2014-11-28 | 2015-04-08 | 重庆华世丹机械制造有限公司 | Spring positioning device for forward gear and reverse gear |
| CN104500726B (en) * | 2014-11-28 | 2017-01-18 | 重庆华世丹机械制造有限公司 | Spring positioning device for forward gear and reverse gear |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140430 |