CN204755779U - Interior gliding style pull rod speed governing shifter - Google Patents
Interior gliding style pull rod speed governing shifter Download PDFInfo
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- CN204755779U CN204755779U CN201520413473.4U CN201520413473U CN204755779U CN 204755779 U CN204755779 U CN 204755779U CN 201520413473 U CN201520413473 U CN 201520413473U CN 204755779 U CN204755779 U CN 204755779U
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- speed
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- speed regulation
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Abstract
The utility model relates to an interior gliding style pull rod speed governing shifter, including two speed regulation gear that tie for and driving tooth shaft, driving tooth shaft and box axial positioning, wherein: two speed regulation gear's center is hollow round hole, and the one end of driving tooth shaft is the external splines axle, and the axle center of external splines axle is the centre bore, the external splines axle inserts two speed regulation gear's hollow round hole center, the external splines is epaxial is furnished with slip internal spline cover, is equipped with one section drive straight -tooth on the outer wall of slip internal spline cover, is equipped with the straight -tooth of one section correspondence on two speed regulation gear's the interior pore wall, corresponds straight gear position in the both sides of two speed regulation gear intersections, the drive arrangement of internal spline cover includes pull rod, pull rod link and speed governing handle, the one end and the internal spline cover tip fixed connection of pull rod link, and after the centre bore of external splines axle was inserted to pull rod one end, the middle part rethread pin and the other end of pull rod link of pull rod were connected, and the other end at the pull rod is established to the speed governing handle.
Description
Technical field
The utility model relates to a kind of gearshift, especially a kind of inner slide pull bar gearshift mechanism, belongs to a kind of and the matching used necessary parts of speed-change gear box.
Background technique
The inner speed governing gearshift mechanism of current speed governing speed reducer is general as shown in Figure 1, they are on drive sprocket axle, transmitted different speed ratio by bearings two speed regulation gear 4 and speed regulation gear 7, drive sprocket axle between speed regulation gear 4 and speed regulation gear 7 is provided with the external splines 22 of a synchronous axial system, speed regulation gear 4 and speed regulation gear 7 opposing side are provided with and an one section external splines corresponding with external splines 22 is set, external splines 22 configures an inner spline housing 21, inner spline housing 21 is driven by shift fork block 20, by inner spline housing 21 or make external splines 22 select a selection and speed regulation gear 4 or speed regulation gear 7 synchronous operation, reach the object of speed change.
The deficiency of this speed governing gearshift mechanism is: this mechanism's overall volume is large, it is large to take up room; The driving mechanism node of shift fork is more, and processing and debugging difficulty, also easily causes dislocation in using, and causes producing unbalanced external force when stirring inner spline housing and causes ring gear tilt and cause stuck; The bearing supporting two speed regulation gears is installed on the inside of speed regulation gear due to reasons in structure, and inner bearing lubrication is inconvenient, causes the bearing at this place easily to damage because of oil starvation.
How to reduce speed governing gearshift mechanism volume, weight; Operate smooth and easy, not stuck when solving speed governing; And adjust the problems such as the bearing lubrication of gear shift and just become the topic paid close attention in the industry.
Model utility content
The purpose of this utility model is: the above-mentioned drawback existed for current speed governing speed reducer speed governing gearshift, provides a kind of new inner slide pull bar speed governing gearshift mechanism.
The purpose of this utility model is achieved in that a kind of inner slide pull bar speed governing gearshift mechanism, comprise speed regulation gear and the driving gear shaft of the different speed ratio of two transmission arranged side by side, driving gear shaft realizes the axially locating between casing by lock washer and round nut, it is characterized in that:
A) two centers of transmitting the speed regulation gear of different speed ratio are hollow circular hole, and one end of driving gear shaft is the male splined shaft be solidified as a whole, and the axle center of male splined shaft is the center hole with driving gear shaft concentric;
B) two speed regulation gears described in and driving gear shaft are by bearings in casing, and they are all positioned on same medial axis, and wherein, the male splined shaft in driving gear shaft inserts the hollow center of circular hole of two speed regulation gears;
C) male splined shaft in driving gear shaft is furnished with slip inner spline housing, the outer wall of slip inner spline housing is provided with one section and drives straight-tooth, the inner hole wall of the hollow circular hole of two speed regulation gears is respectively equipped with one section with the straight-tooth that inner spline housing outer wall drives straight-tooth corresponding, corresponding straight-tooth lays respectively at the both sides of Liang Ge speed regulation gear intersection, and the distance between two corresponding straight-tooth is at least than inner spline housing driving the large 2mm of the physical length of straight-tooth;
D) drive unit of inner spline housing comprises pull bar, pull bar link press span and speed-regulating handle, wherein, one end of pull bar link press span is connected with inner spline housing end winding support, after the center hole of male splined shaft is inserted in pull bar one end, the middle part of pull bar is connected by the other end of pin with pull bar link press span again, and speed-regulating handle is located at the other end of pull bar; During gearshift, the tie rod end in drive unit moves in the center hole of male splined shaft.
In the utility model: be provided with bearing bush cover plate on the casing of two speed regulation gear intersections arranged side by side, the bearing that this place supports two speed regulation gears is supported in casing by bearing bush cover plate.
In the utility model: when driving straight-tooth between two corresponding straight-tooth, gearshift mechanism is neutral; When driving straight-tooth to engage with corresponding straight-tooth arbitrary in two speed regulation gears, gearshift mechanism will transmit corresponding speed ratio; The drive unit of described inner spline housing also comprises one group of pull bar locating slot, and one group of pull bar locating slot comprises three the corresponding notches transmitting different speed ratio from a neutral and two; Speed-regulating handle is connected with tie rod end by bearing, and in shift process, after speed-regulating handle moves axially and arrives at corresponding notch, then radial push speed-regulating handle makes it enter corresponding notch.
The utility model has the advantage of:
1. compact structure, boundary dimension is little, and institute takes up space little;
2. during this speed governing gearshift speed change, uniform force, easy and simple to handle reliable, shake little, long service life, safeguard simple;
3. all bearing outer rings of mechanism are all fixedly installed in speed reduction box shaft bearing, and part processing is easy, installation also facilitates, and pressure lubrication oil mass can be fully guaranteed, and the bearing of assurance mechanism is not fragile.
Accompanying drawing explanation
Fig. 1 is a kind of traditional speed regulating structure schematic diagram.
Fig. 2 is the example structure schematic diagram that the utility model relates to.
Fig. 3 is the partial enlarged drawing of I in Fig. 2.
In figure: 1, casing, 2, speed-regulating handle, 3, pull bar link press span, the 4, first speed regulation gear, 5, male splined shaft, 6, slip inner spline housing, the 7, second speed regulation gear, 8, pull bar, 9, driving gear shaft, 10, bearing, 11, bearing, 12, round nut, 13, lock washer, 14, drive straight-tooth, 15, straight-tooth, 16, bearing bush cover plate, 17, pull bar locating slot, 18, notch, 19, pin, 20, shift fork block, 21, inner spline housing, 22, external splines.
Embodiment
Accompanying drawing 2 and 3 discloses the concrete structure of a kind of embodiment of the utility model without limitation, and below in conjunction with accompanying drawing, the utility model will be further described.
From Fig. 2 with Fig. 3: the utility model comprises the first speed regulation gear 4, second speed regulation gear 7 and driving gear shaft 9 of two different speed ratios of transmission arranged side by side, driving gear shaft 9 realizes the axially locating between casing 1 by lock washer 13 and round nut 12, wherein: two transmission the first speed regulation gears 4 of different speed ratio and the center of the second speed regulation gear 7 are hollow circular hole, one end of driving gear shaft 9 is the male splined shaft 5 be solidified as a whole, and the axle center of male splined shaft 5 is the center holes with driving gear shaft 9 concentric.The first described speed regulation gear 4, second speed regulation gear 7 and driving gear shaft 9 are all supported in casing by bearing 11, they are all positioned on same medial axis, wherein, the male splined shaft 5 in driving gear shaft 9 inserts the hollow center of circular hole of the first speed regulation gear 4 and the second speed regulation gear 7.The male splined shaft 5 of driving gear shaft 9 one end is furnished with slip inner spline housing 6, the outer wall of slip inner spline housing 6 is provided with one section to drive straight-tooth 14, the inner hole wall of the hollow circular hole of two speed regulation gears is respectively equipped with one section and drives with on inner spline housing 6 outer wall the straight-tooth 15 that straight-tooth 14 is corresponding, corresponding straight-tooth 15 lays respectively at the both sides of the first speed regulation gear 4 and the second speed regulation gear 7 intersection, and the distance between two corresponding straight-tooth 15 is at least than inner spline housing driving the large 2mm of the physical length of straight-tooth 14.
The drive unit of inner spline housing 6 comprises pull bar 8, pull bar link press span 3 and speed-regulating handle 2, wherein, one end of pull bar link press span 3 is connected with inner spline housing 6 end winding support, after the center hole of male splined shaft 5 is inserted in pull bar 8 one end, the middle part of pull bar 8 is connected with the other end of pull bar link press span 8 by pin 19 again, and speed-regulating handle 2 is located at the other end of pull bar 8; During gearshift, pull bar 8 end in drive unit is moved in the center hole of male splined shaft 5.
In the present embodiment, the casing 1 of two speed regulation gear intersections arranged side by side is provided with bearing bush cover plate 16, and the bearing 11 that this place supports the first speed regulation gear 4 and the second speed regulation gear 7 is supported in casing 1 by bearing bush cover plate 16.
In the present embodiment: when driving straight-tooth 14 between two corresponding straight-tooth 15, gearshift mechanism is neutral; When driving straight-tooth 14 to engage with corresponding straight-tooth 15 arbitrary in two speed regulation gears, gearshift mechanism will transmit corresponding speed ratio.The drive unit of described inner spline housing 6 also comprises one group of pull bar locating slot, 17, one group of pull bar locating slot 17 and comprises three the corresponding notches 18 transmitting different speed ratio from a neutral and two; Speed-regulating handle is connected with pull bar 8 end by bearing 10, and in shift process, after speed-regulating handle 2 moves axially and arrives at corresponding notch 18, then radial push speed-regulating handle 2 makes it enter corresponding notch 18.
Claims (3)
1. an inner slide pull bar speed governing gearshift mechanism, comprise speed regulation gear and the driving gear shaft of the different speed ratio of two transmission arranged side by side, driving gear shaft realizes the axially locating between casing by lock washer and round nut, it is characterized in that:
A) two centers of transmitting the speed regulation gear of different speed ratio are hollow circular hole, and one end of driving gear shaft is the male splined shaft be solidified as a whole, and the axle center of male splined shaft is the center hole with driving gear shaft concentric;
B) two speed regulation gears described in and driving gear shaft are by bearings in casing, and they are all positioned on same medial axis, and wherein, the male splined shaft in driving gear shaft inserts the hollow center of circular hole of two speed regulation gears;
C) male splined shaft in driving gear shaft is furnished with slip inner spline housing, the outer wall of slip inner spline housing is provided with one section and drives straight-tooth, the inner hole wall of the hollow circular hole of two speed regulation gears is respectively equipped with one section with the straight-tooth that inner spline housing outer wall drives straight-tooth corresponding, corresponding straight-tooth lays respectively at the both sides of Liang Ge speed regulation gear intersection, and the distance between two corresponding straight-tooth is at least than inner spline housing driving the large 2mm of the physical length of straight-tooth;
D) drive unit of inner spline housing comprises pull bar, pull bar link press span and speed-regulating handle, wherein, one end of pull bar link press span is connected with inner spline housing end winding support, after the center hole of male splined shaft is inserted in pull bar one end, the middle part of pull bar is connected by the other end of pin with pull bar link press span again, and speed-regulating handle is located at the other end of pull bar; During gearshift, the tie rod end in drive unit moves in the center hole of male splined shaft.
2. inner slide pull bar speed governing gearshift mechanism according to claim 1, is characterized in that: on the casing of two speed regulation gear intersections arranged side by side, be provided with bearing bush cover plate, the bearing that this place supports two speed regulation gears is supported in casing by bearing bush cover plate.
3. inner slide pull bar speed governing gearshift mechanism according to claim 1 and 2, is characterized in that: when driving straight-tooth between two corresponding straight-tooth, gearshift mechanism is neutral; When driving straight-tooth to engage with corresponding straight-tooth arbitrary in two speed regulation gears, gearshift mechanism will transmit corresponding speed ratio; The drive unit of described inner spline housing also comprises one group of pull bar locating slot, and one group of pull bar locating slot comprises three the corresponding notches transmitting different speed ratio from a neutral and two; Speed-regulating handle is connected with tie rod end by bearing, and in shift process, after speed-regulating handle moves axially and arrives at corresponding notch, then radial push speed-regulating handle makes it enter corresponding notch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520413473.4U CN204755779U (en) | 2015-06-16 | 2015-06-16 | Interior gliding style pull rod speed governing shifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520413473.4U CN204755779U (en) | 2015-06-16 | 2015-06-16 | Interior gliding style pull rod speed governing shifter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204755779U true CN204755779U (en) | 2015-11-11 |
Family
ID=54470487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520413473.4U Active CN204755779U (en) | 2015-06-16 | 2015-06-16 | Interior gliding style pull rod speed governing shifter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204755779U (en) |
-
2015
- 2015-06-16 CN CN201520413473.4U patent/CN204755779U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190930 Address after: 211103 No. 79 Jianheng Road, Jiangning District, Nanjing City, Jiangsu Province Co-patentee after: Nanjing High Precision Transmission Equipment Manufacturing Group Co., Ltd. Patentee after: Nanjing High Precision Gear Group Co., Ltd. Address before: Yuhuatai District of Nanjing City, Jiangsu province 210012 outside the Chinese small especially Jia Ao No. 3 Patentee before: Nanjing High Precision Gear Group Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200515 Address after: 211103 No. 79 Jianheng Road, Jiangning District, Nanjing City, Jiangsu Province Patentee after: NANJING HIGH-SPEED & ACCURATE GEAR GROUP Co.,Ltd. Address before: 211103 No. 79 Jianheng Road, Jiangning District, Nanjing City, Jiangsu Province Co-patentee before: Nanjing High Precision Transmission Equipment Manufacturing Group Co., Ltd. Patentee before: NANJING HIGH-SPEED & ACCURATE GEAR GROUP Co.,Ltd. |
|
| TR01 | Transfer of patent right |