CN201953918U - Push-pull rod gearbox - Google Patents
Push-pull rod gearbox Download PDFInfo
- Publication number
- CN201953918U CN201953918U CN2011200068133U CN201120006813U CN201953918U CN 201953918 U CN201953918 U CN 201953918U CN 2011200068133 U CN2011200068133 U CN 2011200068133U CN 201120006813 U CN201120006813 U CN 201120006813U CN 201953918 U CN201953918 U CN 201953918U
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- shaft
- pull rod
- driving
- axis hole
- driven
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Abstract
The utility model provides a push-pull rod gearbox, which comprises a driving shaft, driven shaft and at least one intermediate shaft, wherein a first shaft hole is axially formed at one end of the driving shaft; a first through groove penetrating the wall of the first shaft hole is axially arranged on the hole wall of the first shaft hole; a driving gear key groove is arranged on every driving gear at the position corresponding to the first through groove; a first pull rod shaft penetrates the first shaft hole; a sliding key capable of performing radially movement is arranged on the first through-groove; a first sliding spring is propped between the first pull rod shaft and the bottom part of the first sliding key; inclined planes are arranged on the two sides of the head part of the first sliding key and take the pointed shapes with two lower sides and a higher middle part; and the head part of the first sliding key penetrates the first through groove of the first shaft hole and is selectively connected with the driving gear key groove on any driving gear; and a second pull rod shaft with a similar structure is arranged on the driven shaft. The drive ratio can be adjusted by pushing or pulling the two pull rod shafts.
Description
Technical field
The utility model relates to a kind of gearbox, the employed gearbox designs of particularly a kind of farm machine.
Background technique
The tradition speed-change gear box, it exists shift impact big, and the problem of stuck fault takes place easily.In addition, the process of its gear shift operation is comparatively loaded down with trivial details, and skilled operation is had relatively high expectations.
Summary of the invention
At the deficiencies in the prior art, the purpose of this utility model is: a kind of pull bar gearbox is provided, and its gearshift is quick and convenient, and impact shock is little, and many retainings speed can be provided, and has increased operational efficiency.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of pull bar gearbox, at least be provided with a driving shaft and a driven shaft, one end of this driving shaft is a power intake, one end of this driven shaft is a clutch end, be rotatably mounted with several driving gears on this driving shaft, be rotatably mounted with several driven gears on this driven shaft, form power directly or indirectly between each driving gear and each driven gear and be connected; It is characterized in that:
The other end of this driving shaft is provided with first axis hole vertically, and the hole wall upper edge of this first axis hole is axially arranged with one to be run through first of wall thickness and wear groove, and each driving gear respectively is provided with a driving tooth keyway corresponding to this first position of wearing groove; Be equipped with one first pull rod shaft in this first axis hole, this first pull rod shaft is provided with first slide key that can move radially, one first sliding spring is connected between the bottom of this first pull rod shaft and this first slide key, the head both sides of this first slide key are equipped with the inclined-plane, and be low, the middle high sharp type in both sides, and the head of this first slide key passes first on this first axis hole and wears groove, is connected with driving tooth keyway selectivity on any one driving gear.
In a preferable technological scheme, the other end of this driven shaft is provided with second axis hole vertically, the hole wall upper edge of this second axis hole is axially arranged with one to be run through second of wall thickness and wears groove, and each driven gear respectively is provided with a driven tooth keyway corresponding to this second position of wearing groove; Be equipped with one second pull rod shaft in this second axis hole, this second pull rod shaft is provided with second slide key that can move radially, one second sliding spring is connected between the bottom of this second pull rod shaft and this second slide key, the head both sides of this second slide key are equipped with the inclined-plane, and be low, the middle high sharp type in both sides, and the head of this second slide key passes second on this second axis hole and wears groove, is connected with driven tooth keyway selectivity on any one driven gear.
In a preferable technological scheme, this gearbox also is provided with the jack shaft of at least one transferring power between this driving shaft and driven shaft.
In a preferable technological scheme, this driving shaft is provided with two driving gears, and this driven shaft is provided with four driven gears.
In a preferable technological scheme, this gearbox is provided with a jack shaft, this jack shaft is provided with five intermediate gears, one of them intermediate gear and a driving gear engagement, the engagement of three intermediate gears and three driven gears is arranged in addition, and last intermediate gear meshes a remaining driving gear and driven gear simultaneously.
In a preferable technological scheme, the inwall of this first axis hole is provided with the location hoodle that several can elastic telescopic, and correspondence is provided with several location pits on the outer surface of first pull rod shaft.
In a preferable technological scheme, the inwall of this second axis hole is provided with the location hoodle that several can elastic telescopic, and correspondence is provided with several location pits on the outer surface of second pull rod shaft.
In a preferable technological scheme, this first pull rod shaft also is connected with one first operating stem by one first pin rod, this first operating stem stretches out outside this first axis hole, the outer surface of this first pull rod shaft is stretched out at the two ends of this first pin rod, and is fastened in a pair of location elongated slot of being offered vertically on the hole wall of this first axis hole.
In a preferable technological scheme, this second pull rod shaft also is connected with one second operating stem by one second pin rod, this second operating stem stretches out outside this second axis hole, the outer surface of this second pull rod shaft is stretched out at the two ends of this second pin rod, and is fastened in a pair of location elongated slot of being offered vertically on the hole wall of this second axis hole.
In a preferable technological scheme, also comprise a casing, this driving shaft, jack shaft and driven shaft respectively by Bearing Installation on this casing.
Compared with prior art, adopt the advantage that the utlity model has of technique scheme to be: shift gears convenient and swift, easy and simple to handle, shift impact is little, raising machine works efficient.
Description of drawings
Fig. 1 is a three-dimensional appearance schematic representation of the present utility model;
Fig. 2 is that gear matched of the present utility model concerns schematic representation;
Fig. 3 is a driving shaft of the present utility model and the generalized section that combines of first pull bar;
Fig. 4 is a driven shaft of the present utility model and the generalized section that combines of second pull bar.
Embodiment
As shown in Figure 1, pull bar gearbox provided by the utility model, has a housing 10, driving shaft 20, jack shaft 30 and driven shaft 40 respectively by Bearing Installation on this housing 10, an end of this driving shaft 20 is equipped with sprocket wheel, with as power intake 21, be equipped with first pull bar 50 in the other end, one end of this driven shaft 40 is equipped with sprocket wheel, as clutch end 41, is equipped with second pull bar 60 in driven shaft 40 the other ends.
Drive connection in this pull bar gearbox between each, see also shown in Figure 2, this driving shaft 20 is rotatably mounted with two driving gears 22, be rotatably mounted with four driven gears 42 on this driven shaft 40, be rotatably mounted with several intermediate gears 32 on this jack shaft 30, described several intermediate gears 32 mesh with each driving gear 22 and each driven gear 42 respectively.In the present embodiment, this jack shaft 30 is provided with five intermediate gears 32, one of them intermediate gear 32 and driving gear 22 engagements, the engagement of three intermediate gears 32 and three driven gears is arranged in addition, and last intermediate gear 32 mesh the driving gear 22 and the driven gear 42 of remainder simultaneously.
Below will cooperate shown in Figure 3ly, describe the combined structure of this driving shaft 20 and first pull bar 50.
The described the other end of this driving shaft 20 is provided with first axis hole 23 vertically, the hole wall upper edge of this first axis hole 23 is axially arranged with one to be run through first of wall thickness and wears groove 24, and each driving gear 22 respectively is provided with a driving tooth keyway 221 corresponding to this first position of wearing groove 24; This first pull bar 50 is provided with one first pull rod shaft 51, this first pull rod shaft 51 is located in this first axis hole 23, this first pull rod shaft 51 also is connected with one first operating stem 53 by one first pin rod 52, this first operating stem 53 stretches out outside this first axis hole 23, the outer surface of this first pull rod shaft 51 is also stretched out at the two ends of this first pin rod 52, and be fastened in a pair of location elongated slot of being offered vertically on the hole wall of this first axis hole 23 25, axially rotation takes place to prevent these first pull bar, 50 relative these driving shafts 20; In addition, on this first pull rod shaft 51, also be provided with first slide key 54 that can move radially, one first sliding spring 55 is connected between the bottom of this first pull rod shaft 51 and this first slide key 54, the head both sides of this first slide key 54 are equipped with the inclined-plane, be low, the middle high sharp type in both sides, under the effect that pushes of this first sliding spring 55, the head of this first slide key 54 can pass first on this first axis hole 23 and wear groove 24, and is connected with driving tooth keyway 221 on any one driving gear 22.
Simultaneously, the location hoodle 26 that several can elastic telescopic can be set on the inwall of this first axis hole 23, and correspondence is provided with several location pits 56 on the outer surface of first pull rod shaft 51, utilize the power that engages between this location hoodle 26 and this location pit 56, prevent between this first pull bar 50 and the driven shaft 40 because external interference takes place to trip stop automatically.
In case the driving tooth keyway 221 on this first slide key 54 and one of them driving gear 22 forms and cooperates, this driving gear 22 promptly forms with driving shaft 20 and is rotationally connected synchronously, and the velocity ratio between jack shaft 30 and the driving shaft 20 is promptly recently determined by the number of teeth between the intermediate gear 32 of this driving gear 22 and engagement thereof.And the velocity ratio between needs this driving shaft 20 of adjustment and the jack shaft 30 (promptly, gearshift) time, only need to promote or spur this first pull bar 50, first slide key 54 on this first pull rod shaft 51 is withdrawn from the driving tooth keyway 221 of above-mentioned one of them driving gear 22 earlier, move axially then, insert again and cooperate the location in the driving tooth keyway 221 of another driving gear 22, just finished the adjustment (also claiming gearshift) of a velocity ratio.Because the head both sides of above-mentioned first slide key 54 are equipped with the inclined-plane, be low, the middle high sharp type in both sides, therefore, in the gearshift procedure, this first slide key 54 can bounce back to skip the barrier between each driving tooth keyway 221 automatically.
Below will cooperate shown in Figure 4ly again, describe on this driven shaft 40 combined structure with second pull bar 60.
The described the other end of this driven shaft 40 is provided with second axis hole 43 vertically, the hole wall upper edge of this second axis hole 43 is axially arranged with one to be run through second of wall thickness and wears groove 44, and each driven gear 42 respectively is provided with a driven tooth keyway 441 corresponding to this second position of wearing groove 44; This second pull bar 60 is provided with one second pull rod shaft 61, this second pull rod shaft 61 is located in this second axis hole 43, this second pull rod shaft 61 also is connected with one second operating stem 63 by one second pin rod 62, this second operating stem 63 stretches out outside this second axis hole 43, the outer surface of this second pull rod shaft 61 is also stretched out at the two ends of this second pin rod 62, and be fastened in a pair of location elongated slot of being offered vertically on the hole wall of this second axis hole 43 45, axially rotation takes place to prevent these second pull bar, 60 relative these driven shafts 40; In addition, on this second pull rod shaft 61, also be provided with second slide key 64 that can move radially, one second sliding spring 65 is connected between the bottom of this second pull rod shaft 61 and this second slide key 64, the head both sides of this second slide key 64 are equipped with the inclined-plane, be low, the middle high sharp type in both sides, under the effect that pushes of this second sliding spring 65, the head of this second slide key 64 can pass second on this second axis hole 43 and wear groove 44, and is connected with driven tooth keyway 441 on any one driven gear 42.
In order to make gear clear, gearshift accurately, the location hoodle 46 that several can elastic telescopic also is set on the inwall of this second axis hole 43, and correspondence is provided with several location pits 66 on the outer surface of second pull rod shaft 61, utilize the power that engages between this location hoodle 46 and this location pit 66, prevent between this second pull bar 60 and the driven shaft 40 because external interference takes place to trip stop automatically.
More than explanation is just illustrative for the utility model; and it is nonrestrictive; those of ordinary skills understand; under the situation of the spirit and scope that do not break away from claim and limited; can make many modifications; change or equivalence; for example; increase or reduce the number of driving gear 22 (or driven gear 42); two jack shafts 30 perhaps are set; jack shaft 30 (driving shaft 20 directly drives driven shaft 40) perhaps is not set; perhaps this spur gear gearbox being changed into helical gear gearbox or awl bevel gear gearbox, or the like, all will fall within the protection domain of the present utility model.
Claims (10)
1. pull bar gearbox, at least be provided with a driving shaft and a driven shaft, one end of this driving shaft is a power intake, one end of this driven shaft is a clutch end, be rotatably mounted with several driving gears on this driving shaft, be rotatably mounted with several driven gears on this driven shaft, form power directly or indirectly between each driving gear and each driven gear and be connected; It is characterized in that:
The other end of this driving shaft is provided with first axis hole vertically, and the hole wall upper edge of this first axis hole is axially arranged with one to be run through first of wall thickness and wear groove, and each driving gear respectively is provided with a driving tooth keyway corresponding to this first position of wearing groove; Be equipped with one first pull rod shaft in this first axis hole, this first pull rod shaft is provided with first slide key that can move radially, one first sliding spring is connected between the bottom of this first pull rod shaft and this first slide key, the head both sides of this first slide key are equipped with the inclined-plane, and be low, the middle high sharp type in both sides, and the head of this first slide key passes first on this first axis hole and wears groove, is connected with driving tooth keyway selectivity on any one driving gear.
2. pull bar gearbox according to claim 1, it is characterized in that: the other end of this driven shaft is provided with second axis hole vertically, the hole wall upper edge of this second axis hole is axially arranged with one to be run through second of wall thickness and wears groove, and each driven gear respectively is provided with a driven tooth keyway corresponding to this second position of wearing groove; Be equipped with one second pull rod shaft in this second axis hole, this second pull rod shaft is provided with second slide key that can move radially, one second sliding spring is connected between the bottom of this second pull rod shaft and this second slide key, the head both sides of this second slide key are equipped with the inclined-plane, and be low, the middle high sharp type in both sides, and the head of this second slide key passes second on this second axis hole and wears groove, is connected with driven tooth keyway selectivity on any one driven gear.
3. pull bar gearbox according to claim 1 and 2 is characterized in that: this gearbox also is provided with the jack shaft of at least one transferring power between this driving shaft and driven shaft.
4. pull bar gearbox according to claim 3 is characterized in that: this driving shaft is provided with two driving gears, and this driven shaft is provided with four driven gears.
5. pull bar gearbox according to claim 4, it is characterized in that: this gearbox is provided with a jack shaft, this jack shaft is provided with five intermediate gears, one of them intermediate gear and a driving gear engagement, the engagement of three intermediate gears and three driven gears is arranged in addition, and last intermediate gear meshes a remaining driving gear and driven gear simultaneously.
6. pull bar gearbox according to claim 1 and 2 is characterized in that: the inwall of this first axis hole is provided with the location hoodle that several can elastic telescopic, and correspondence is provided with several location pits on the outer surface of first pull rod shaft.
7. pull bar gearbox according to claim 2 is characterized in that: the inwall of this second axis hole is provided with the location hoodle that several can elastic telescopic, and correspondence is provided with several location pits on the outer surface of second pull rod shaft.
8. pull bar gearbox according to claim 1 and 2, it is characterized in that: this first pull rod shaft also is connected with one first operating stem by one first pin rod, this first operating stem stretches out outside this first axis hole, the outer surface of this first pull rod shaft is stretched out at the two ends of this first pin rod, and is fastened in a pair of location elongated slot of being offered vertically on the hole wall of this first axis hole.
9. pull bar gearbox according to claim 2, it is characterized in that: this second pull rod shaft also is connected with one second operating stem by one second pin rod, this second operating stem stretches out outside this second axis hole, the outer surface of this second pull rod shaft is stretched out at the two ends of this second pin rod, and is fastened in a pair of location elongated slot of being offered vertically on the hole wall of this second axis hole.
10. pull bar gearbox according to claim 3 is characterized in that: also comprise a casing, this driving shaft, jack shaft and driven shaft respectively by Bearing Installation on this casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200068133U CN201953918U (en) | 2011-01-11 | 2011-01-11 | Push-pull rod gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200068133U CN201953918U (en) | 2011-01-11 | 2011-01-11 | Push-pull rod gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201953918U true CN201953918U (en) | 2011-08-31 |
Family
ID=44498028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200068133U Expired - Fee Related CN201953918U (en) | 2011-01-11 | 2011-01-11 | Push-pull rod gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201953918U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359581A (en) * | 2011-09-23 | 2012-02-22 | 无锡开普机械有限公司 | Meshing sleeve control mechanism with rotating center capable of shifting gears |
| CN104712713A (en) * | 2015-02-10 | 2015-06-17 | 蒙桂文 | Pin moving type speed changing transmission mechanism |
-
2011
- 2011-01-11 CN CN2011200068133U patent/CN201953918U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359581A (en) * | 2011-09-23 | 2012-02-22 | 无锡开普机械有限公司 | Meshing sleeve control mechanism with rotating center capable of shifting gears |
| CN104712713A (en) * | 2015-02-10 | 2015-06-17 | 蒙桂文 | Pin moving type speed changing transmission mechanism |
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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: 20110831 Termination date: 20120111 |