CN201580251U - Gear-shifting system - Google Patents
Gear-shifting system Download PDFInfo
- Publication number
- CN201580251U CN201580251U CN200920316220XU CN200920316220U CN201580251U CN 201580251 U CN201580251 U CN 201580251U CN 200920316220X U CN200920316220X U CN 200920316220XU CN 200920316220 U CN200920316220 U CN 200920316220U CN 201580251 U CN201580251 U CN 201580251U
- Authority
- CN
- China
- Prior art keywords
- gear
- connecting rod
- control handle
- power shift
- joystick
- 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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- Gear-Shifting Mechanisms (AREA)
- Mechanical Control Devices (AREA)
Abstract
The utility model relates to a gear-shifting system, which comprises a shifting box, a control lever, a clutch mechanism and a shifting fork-link rod mechanism connected with the control lever and the clutch mechanism, the control lever comprises a control handle and an anti-disengagement control handle which are connected in the form of a V, and is rotatably assembled in the shifting box with the joint between the control handle and the anti-disengagement control handle as a rotation center, a compression spring is compressed between the shifting box and the anti-disengagement control handle, and the axial line of the compression spring is positioned on the same straight line as the axial line of the anti-disengagement control handle at the neutral gear, and makes an included angle with the axial line of the anti-disengagement control handle at the high or low gear. The gear-shifting system has the advantages of easy gear shifting, accurate positioning, reliable engagement, low gear-shifting force and good handle, and cannot cause the problem of disengagement.
Description
Technical field
The utility model relates to a kind of gear system, belongs to field of mechanical technique.
Background technology
At present, in the gear system design of motor-tricycle, farm vehicle, what generally adopt is that spring top bead location, spring reset, transmission gear horizontally slip, profile of tooth ingear gear locate mode, this mode exists in daily use that the gear gearshift is difficult, the location is inaccurate, in conjunction with unreliable, gear power big, the problem of feel difference.In addition, in daily use, the phenomenon of off-gear also occurs, have great potential safety hazard through regular meeting.
The utility model content
The purpose of this utility model provides a kind of gear system, the gear gearshift of existing gear system is difficult, the location is inaccurate in order to solve, in conjunction with unreliable, gear power big, feel difference and be prone to the problem that there is potential safety hazard in off-gear.
For achieving the above object, the utility model adopts following technical scheme: a kind of gear system, comprise the gear box, joystick, engaging and disengaging gear and the shift fork connecting rod mechanism that is connected joystick and engaging and disengaging gear, described joystick is made up of V-shaped handlebar that is connected and anti-off-gear control handle, this joystick is that the centre of gration rotation is assemblied in the gear box with the junction of handlebar and anti-off-gear control handle, be pressed with stage clip between described gear box and the anti-off-gear control handle, when being in neutral, the axis of the axis of described stage clip and anti-off-gear control handle is on the same straight line, be in height, during low gear, the axis of the axis of described stage clip and anti-off-gear control handle has angle.
Described engaging and disengaging gear comprises castellated shaft, axial location is rotatably equipped with first power shift gear and second power shift gear on the described castellated shaft, be provided with the corresponding gearshift wheel that cooperates that only revolves between described first power shift gear and second power shift gear, be respectively arranged with engaging structure between gearshift wheel and first power shift gear and second power shift gear with castellated shaft.
Described engaging structure is by being arranged at the double wedge on the gearshift wheel end face and being arranged at first power shift gear and the groove of second power shift gear on the end face of gearshift wheel formed the corresponding engagement with groove of described double wedge.
Described shift fork connecting rod mechanism comprises that being arranged on the gearshift wheel goes up this gearshift wheel of driving along castellated shaft shift fork that reciprocatingly slides and the connecting rod rocker arrangement that is connected shift fork and joystick.
Described connecting rod rocker arrangement comprises a change bar long connecting rod, and this change bar long connecting rod comprises minus thread connecting rod and right-hand screw thread connecting rod, is bolted with left and right sides spin nut between minus thread connecting rod and the right-hand screw thread connecting rod.
All be bolted with jam nut on described minus thread connecting rod and the right-hand screw thread connecting rod, described jam nut cooperates with left and right sides spin nut pushing tow.
Gear of the present utility model system is on the same straight line at stage clip under the situation of not carrying out gear and anti-off-gear control handle in use, and in this state following time, joystick is in dead center position, is not having under the extraneous situation about handling, and it can not move.When gear, the operator controls joystick and moves forwards or backwards, at this moment, the dead center position of joystick is destroyed, and stage clip provides an auxiliary force to finish gear, has so just reduced the power of operator's gear, improved the gear feel, and after gear puts in place, carry out stick position and keep under the effect of stage clip elastic force, the problem that prevents off-gear takes place.Joystick is by connecting rod rocker arrangement shift fork crank motion, and then shift fork drives the gearshift wheel along the castellated shaft crank motion, realize the gearshift wheel respectively with first power shift gear and second power shift gear deciliter.First power shift gear and second power shift gear axial location rotation respectively are assemblied on the castellated shaft, and with the engaging structure of side realize with the gearshift wheel deciliter, because there be not axial moving in first power shift gear and second power shift gear on castellated shaft, therefore than being easier to gearshift, and accurate positioning, in conjunction with reliably.
Description of drawings
Fig. 1 is the structural representation of the utility model gear system;
Fig. 2 is the structural representation of joystick when being positioned at dead center position;
Fig. 3 is the joystick structural representation during gear forward;
Fig. 4 is the joystick structural representation during gear backward;
Fig. 5 is the structural representation at gearshift wheel engagement position.
The specific embodiment
Shown in Fig. 1,5, gear of the present utility model system comprises gear box, joystick and the castellated shaft be made up of lower box body 1 and cover plate 2; Axial location is rotatably equipped with first power shift gear 16 and second power shift gear 14 on the described castellated shaft, and promptly first power shift gear 16 and second power shift gear 14 can dally on castellated shaft, but can not slide along castellated shaft.Gearshift wheel 15 with the castellated shaft corresponding matching is installed between first power shift gear 16 and second power shift gear 14, this gearshift wheel 15 is provided with and drives the shift fork 13 that this gearshift wheel reciprocatingly slides along castellated shaft, be respectively arranged with engaging structure between gearshift wheel 15 and first power shift gear 16 and second power shift gear 14, this engaging structure is by being arranged at the double wedge on gearshift wheel 15 end faces and being arranged at first power shift gear 16 and the groove of second power shift gear 14 on the end face of gearshift wheel 15 formed, the corresponding engagement with groove of described double wedge adopts said structure to solve present ubiquitously slide by gear, the gear mesh difficulty that the engagement transferring power exists between the profile of tooth, the cost height, beat the problem of tooth and poor reliability easily.Described joystick is made up of V-shaped handlebar 3 and anti-off-gear control handle 5, this joystick is that the centre of gration rotation is assemblied in the gear box with the junction of handlebar 3 and anti-off-gear control handle 5, between gear box and anti-off-gear control handle 5, be pressed with stage clip 4, this stage clip 4 is on the same straight line with anti-off-gear control handle 5, can guarantee that like this joystick is on the dead center position in gear not.In addition, be provided with the connecting rod rocker arrangement of shift fork motion between shift fork 13 and joystick, this connecting rod rocker arrangement comprises that bonded assembly becomes bar long connecting rod, first rocking arm 11, rocker shaft 12 and second rocking arm 17 in turn.Wherein become the bar long connecting rod and be connected with joystick, second rocking arm 17 is connected with shift fork 13 and is used for shift fork 13 crank motions.Described change bar long connecting rod comprises minus thread connecting rod 7 and right-hand screw thread connecting rod 8, be bolted with left and right sides spin nut 10 between minus thread connecting rod 7 and the right-hand screw thread connecting rod 8, can regulate the length that becomes the bar long connecting rod by turn left and right sides spin nut 10, be respectively arranged with the jam nut 9 that is screwed onto on minus thread connecting rod 7 and the right-hand screw thread connecting rod 8 in the both sides of left and right sides spin nut 10, jam nut 9 prevents that the left and right sides spin nut 10 from becoming flexible and the length of change change bar long connecting rod.Adopt to become this hard link mode of bar long connecting rod, having solved existing backguy gear needs retracing spring, unreliable, the backguy of resetting put into gear strength big, do not have feel, and the maintenance cost height, travel in problem out of supply easily.As shown in Figure 2, this moment, joystick was positioned at dead center position, was positioned at the middle of first power shift gear 16 and second power shift gear 14 corresponding to gearshift wheel 15, and this moment, first power shift gear 16 and second power shift gear 14 dallied with respect to castellated shaft.When as shown in Figure 3, when promoting joystick forward, under the effect of connecting rod rocker arrangement, shift fork 13 promotes gearshift wheel 15 and moves right, and makes 14 engagements of gearshift wheel 15 and second power shift gear, makes second power shift gear 14 follow castellated shaft and rotates together, when this position, stage clip 4 is given anti-5 one thrusts of off-gear control handle, makes the joystick self-locking, prevents the situation of off-gear.When as shown in Figure 4, when promoting joystick backward, under the effect of connecting rod rocker arrangement, shift fork 13 promotes gearshift wheel 15 to left movement, and makes 16 engagements of gearshift wheel 15 and first power shift gear, makes first power shift gear 16 follow castellated shaft and rotates together, when this position, stage clip 4 is given anti-5 one thrusts of off-gear control handle, makes the joystick self-locking, prevents the situation of off-gear.
Claims (6)
1. gear system, comprise the gear box, joystick, engaging and disengaging gear and the shift fork connecting rod mechanism that is connected joystick and engaging and disengaging gear, it is characterized in that: described joystick is made up of V-shaped handlebar that is connected and anti-off-gear control handle, this joystick is that the centre of gration rotation is assemblied in the gear box with the junction of handlebar and anti-off-gear control handle, be pressed with stage clip between described gear box and the anti-off-gear control handle, when being in neutral, the axis of the axis of described stage clip and anti-off-gear control handle is on the same straight line, be in height, during low gear, the axis of the axis of described stage clip and anti-off-gear control handle has angle.
2. gear according to claim 1 system, it is characterized in that: described engaging and disengaging gear comprises castellated shaft, axial location is rotatably equipped with first power shift gear and second power shift gear on the described castellated shaft, be provided with the corresponding gearshift wheel that cooperates that only revolves between described first power shift gear and second power shift gear, be respectively arranged with engaging structure between gearshift wheel and first power shift gear and second power shift gear with castellated shaft.
3. gear according to claim 2 system, it is characterized in that: described engaging structure is by being arranged at the double wedge on the gearshift wheel end face and being arranged at first power shift gear and the groove of second power shift gear on the end face of gearshift wheel formed the corresponding engagement with groove of described double wedge.
4. according to claim 1 or 2 or 3 described gear systems, it is characterized in that: described shift fork connecting rod mechanism comprises that being arranged on the gearshift wheel goes up and drive this gearshift and take turns along castellated shaft shift fork that reciprocatingly slides and the connecting rod rocker arrangement that is connected shift fork and joystick.
5. according to the described gear of claim 4 system, it is characterized in that: described connecting rod rocker arrangement comprises a change bar long connecting rod, this change bar long connecting rod comprises minus thread connecting rod and right-hand screw thread connecting rod, is bolted with left and right sides spin nut between minus thread connecting rod and the right-hand screw thread connecting rod.
6. gear according to claim 5 system, it is characterized in that: all be bolted with jam nut on described minus thread connecting rod and the right-hand screw thread connecting rod, described jam nut cooperates with left and right sides spin nut pushing tow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920316220XU CN201580251U (en) | 2009-11-30 | 2009-11-30 | Gear-shifting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920316220XU CN201580251U (en) | 2009-11-30 | 2009-11-30 | Gear-shifting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201580251U true CN201580251U (en) | 2010-09-15 |
Family
ID=42722247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920316220XU Expired - Fee Related CN201580251U (en) | 2009-11-30 | 2009-11-30 | Gear-shifting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201580251U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350946A (en) * | 2011-11-01 | 2012-02-15 | 南车长江车辆有限公司 | Clutch transmission self-locking system |
| CN104196997A (en) * | 2014-09-15 | 2014-12-10 | 山东常林农业装备股份有限公司 | High and low gear engaging mechanism without steel ball positioning for transmissions of tractors and harvesters |
| CN105539135A (en) * | 2015-12-17 | 2016-05-04 | 安徽中科自动化股份有限公司 | Gear shifting operation mechanism of caterpillar tractor |
-
2009
- 2009-11-30 CN CN200920316220XU patent/CN201580251U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350946A (en) * | 2011-11-01 | 2012-02-15 | 南车长江车辆有限公司 | Clutch transmission self-locking system |
| CN104196997A (en) * | 2014-09-15 | 2014-12-10 | 山东常林农业装备股份有限公司 | High and low gear engaging mechanism without steel ball positioning for transmissions of tractors and harvesters |
| CN105539135A (en) * | 2015-12-17 | 2016-05-04 | 安徽中科自动化股份有限公司 | Gear shifting operation mechanism of caterpillar tractor |
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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: 20100915 Termination date: 20111130 |