CN203098836U - Shifting drum type shift mechanism with self-lock device - Google Patents
Shifting drum type shift mechanism with self-lock device Download PDFInfo
- Publication number
- CN203098836U CN203098836U CN 201220658907 CN201220658907U CN203098836U CN 203098836 U CN203098836 U CN 203098836U CN 201220658907 CN201220658907 CN 201220658907 CN 201220658907 U CN201220658907 U CN 201220658907U CN 203098836 U CN203098836 U CN 203098836U
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- Prior art keywords
- gear shift
- shift drum
- limiting board
- self
- groove
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Abstract
The utility model discloses a shifting drum type shift mechanism with a self-lock device, relates to a control device of a transmission used for transmitting rotary motion, in particular to a locking device for the shifting drum type shift mechanism, and aims to provide the shifting drum type shift mechanism with the self-lock device, which is simple in structure and better in self-lock effect. A shifting drum shaft 1 is rotatably connected onto a box; a shifting drum 2 of which the annular outer wall is provided with at least one shifting groove 21 is fixedly arranged on the shifting drum shaft; all the shifting grooves are provided with a plurality of specific position points; one end face of the shifting drum is fixedly provided with a limit plate 3; a plurality of limit grooves 31 are formed on the limit plate; the corner position of each limit groove relative to the shifting drum shaft is corresponding to the corner position of each specific position point relative to the shifting drum shaft in sequence in a one-to-one way; a spring barrel 41 is fixed on the box; a compression spring 42 is arranged in the spring barrel; a steel ball 43 is arranged between the compression spring and the limit plate; and the convex surface of the steel ball is located in one of the limit grooves.
Description
Technical field
The utility model relates to a kind of control gear of transmission device of conveying rotary motion, particularly relates to a kind of locking device that is used for gear shift drum-type gearshift mechanism.
Background technique
A kind of gear shift drum-type gearshift mechanism is arranged in the transmission for vehicles field at present, wherein " gear shift drum " also has person to be " hub range shift ", gear shift drum-type gearshift mechanism generally is provided with the gear shift groove that several change at axial position on the annular outer wall of gear shift drum, between the two side in the gear shift groove reverse shift fork is housed, when the gear shift drum rotates, because the axial position difference of gear shift groove position, reverse shift fork can move along the axial direction of gear shift drum, thereby drive driving gear or synchronizer and realize gear shift, for example application number is 200710138389.6, publication number is CN101358649A, open day is the disclosed a kind of full landform bias shift plunger structure of Chinese invention patent application on February 4th, 2009, has wherein just provided a kind of gear shift drum structure.The shape of the gear shift groove of gear shift drum-type gearshift mechanism is of all kinds, gear shift groove number look the gear number needs and can for one also can be for a plurality of, but all gear shift grooves generally have several specific location point altogether altogether, these specific location point correspondences each gear positions and the neutral position of speed changer, and general correspondence was positioned at these specific location point when the gear shift drum rotated.This in the past gear shift drum-type gearshift mechanism is widely used in the motorcycle gear box field, and along with the development of automotive engineering, it also just progressively is applied in the automotive transmission, and is faster because its switching speed is compared the other types gearshift mechanism.But, after gear shift is finished, in order to keep the invariant position of reverse shift fork, baroque self-locking mechanism generally is set on shift level or reverse shift fork, this labyrinth is unfavorable for being applied on the automotive transmission, in addition for gear shift drum-type gearshift mechanism, the power that the gear shift drum promotes the reverse shift fork motion promotes the power that rotation is roused in gear shift much larger than reverse shift fork, when the gear shift drum is subjected to external impacts or vibrations and rotates, self-locking mechanism on shift level or the reverse shift fork is difficult to the self-locking of realization to gearshift mechanism, occurs out of supply and random shelves phenomenon easily.
The model utility content
The technical problems to be solved in the utility model provides a kind of gear shift drum-type gearshift mechanism of band self-locking device of simple in structure, self-locking better effects if.
The gear shift drum-type gearshift mechanism of the utility model band self-locking device, comprise casing, be connected with gear shift drum axle on the described casing rotationally, described gear shift drum axle is gone up the coaxial gear shift drum that is fixedly connected with, the annular outer wall of described gear shift drum is provided with at least one gear shift groove, all described gear shift grooves have several specific location point altogether, wherein:
Be fixedly connected with limiting board on the end face of described gear shift drum one end, the annular outer wall of limiting board is provided with the restraining groove of described specific location point number, and each restraining groove is corresponding one by one successively with respect to the angle position of described gear shift drum axle with each described specific location point with respect to the angle position of described gear shift drum axle;
Radially be fixedly connected with spring strut in the position of the described limiting board of correspondence along gear shift drum axle on the described casing, be provided with pressure spring in the spring strut, be provided with steel ball between inherent pressure spring of spring strut and the described limiting board, the convex surface of steel ball is positioned at one of them described restraining groove.
The gear shift drum-type gearshift mechanism of the utility model band self-locking device, wherein said limiting board is provided with first positioning pin hole, described gear shift drum is gone up being provided with second positioning pin hole near corresponding described first positioning pin hole on the end face of limiting board one side, is plugged with locating stud in described first positioning pin hole and second positioning pin hole.
The gear shift drum-type gearshift mechanism of the utility model band self-locking device, the number of wherein said gear shift groove is two, the number of described restraining groove is seven.
The gear shift drum-type gearshift mechanism of the utility model band self-locking device, the bottom of wherein said restraining groove is an arc, the both sides of described curved bottom are the inclined-plane.
The gear shift drum-type gearshift mechanism difference from prior art of the utility model band self-locking device is that the lock portion of the gear shift drum-type gearshift mechanism of the utility model band self-locking device is arranged between gear shift drum and the casing, be fixedly connected with limiting board on the end face of gear shift drum one end, the annular outer wall of limiting board is provided with the restraining groove of specific location point number, each restraining groove is corresponding one by one successively with respect to the angle position of the bulging axle of gear shift with each specific location point with respect to the angle position of the bulging axle of gear shift, realize locking in order to utilize restraining groove, radially be fixedly connected with spring strut in the position of corresponding limiting board along gear shift drum axle on the casing, be provided with pressure spring in the spring strut, be provided with steel ball between inherent pressure spring of spring strut and the limiting board, the convex surface of steel ball is positioned at one of them restraining groove, like this, when the gear shift drum whenever changes a gear, steel ball will just in time be positioned at one of them restraining groove, because pressure spring by compression and the thrust that steel ball is produced, steel ball will stop the rotation of limiting board to a certain extent, and then stop the rotation of gear shift drum.In prior art, lock portion is designed on reverse shift fork, the gear shift drum-type gearshift mechanism of the utility model band self-locking device is directly locked gear shift tympanic part branch, effectively stop the gear shift drum because external impacts or vibrations and issuable rotation, the self-locking better effects if.In addition, the lock portion part of the gear shift drum-type gearshift mechanism of the utility model band self-locking device is less, easy to process, also has advantage of simple structure, preferablyly is used in the occasion less to the speed changer volume requirement.
Limiting board is provided with first positioning pin hole in the gear shift drum-type gearshift mechanism of the utility model band self-locking device, the gear shift drum is gone up and is being provided with second positioning pin hole near corresponding first positioning pin hole on the end face of limiting board one side, when being plugged with locating stud in first positioning pin hole and second positioning pin hole, locating stud cooperates with two positioning pin holes, be convenient to location between limiting board and gear shift drum, two positioning pin holes can just process the position correspondence adding man-hour, with the assembling after convenient.The number of gear shift groove is two in the gear shift drum-type gearshift mechanism of the utility model band self-locking device, and the number of restraining groove goes for having the occasion of the speed changer of two reverse shift forks, four gears when being seven.The bottom of restraining groove is an arc in the gear shift drum-type gearshift mechanism of the utility model band self-locking device, when the both sides of curved bottom are the inclined-plane, restraining groove is easier to processing, and pressure spring will finally promote steel ball in curved bottom to the thrust of steel ball, is in suitable position to guarantee synchronizer.
Be described further below in conjunction with the gear shift drum-type gearshift mechanism of accompanying drawing the utility model band self-locking device.
Description of drawings
Fig. 1 is first embodiment's of gear shift drum-type gearshift mechanism of the utility model band self-locking device a stereogram;
Fig. 2 is the unfolded drawing of the annular side of gear shift drum among first embodiment of gear shift drum-type gearshift mechanism of the utility model band self-locking device;
Fig. 3 is limiting board among first embodiment of gear shift drum-type gearshift mechanism of the utility model band self-locking device and the locating stud front view when watching near gear shift drum one side;
Fig. 4 is the sectional view of first embodiment's medi-spring tube of gear shift drum-type gearshift mechanism, pressure spring and the steel ball of the utility model band self-locking device.
Embodiment
First embodiment of gear shift drum-type gearshift mechanism of the utility model band self-locking device as shown in Figure 1, with the same in the prior art, comprise the casing (not shown), be connected with gear shift drum axle 1 on the casing rotationally, the coaxial gear shift drum 2 that is fixedly connected with on the gear shift drum axle 1, the annular outer wall of gear shift drum 2 is provided with two gear shift grooves 21, all gear shift grooves 21 have 7 specific location point altogether, the unfolded drawing of gear shift groove 21 is referring to Fig. 2, the principle of gear shift drum, the structure of gear shift groove and specific location point belong to commonly known in the art, but the utility model need be handed over and the position of special position spot correlation relation, for the ease of understanding, earlier gear shift groove and specific location point are explained at this.As shown in Figure 2, gear shift groove 21 1 has seven specific location point in the present embodiment, a1 in the gear shift groove on the left of corresponding successively, a2, a3, a4, a5, a6, position shown in the a7, the also b1 in the gear shift groove on corresponding right side successively, b2, b3, b4, b5, b6, position shown in the b7, a1 among the figure, on behalf of a gear, b1 put, a3, b3 represents the second gear position, a5, b5 represents the third gear position, a7, b7 represents the fourth gear position, a2, b2, a4, b4, a6, b6 represents neutral position, a1, a2, a3, a4, a5, a6, be separated by successively between each position shown in the a7 50 ° corner, b1, b2, b3, b4, b5, b6, also be separated by successively between each position shown in the b7 50 ° corner, when gear shift drum 2 rotates, the gear shift troughed belt is moved grade shift fork (not shown) moving axially along the gear shift drum, moving of reverse shift fork will make speed changer change between each gear and neutral gear, how to realize that as for reverse shift fork the gear shift of speed changer belongs to technology commonly known in the art, also irrelevant with the application's improvement part, do not repeat them here.Unlike the prior art be, be fixedly connected with limiting board 3 on the end face of gear shift drum 2 one ends in the present embodiment, the annular outer wall of limiting board 3 is provided with 7 restraining groove 31, each restraining groove 31 is corresponding one by one successively with respect to the angle position of the bulging axle 1 of gear shift with each specific location point with respect to the angle position of the bulging axle 1 of gear shift, is in the present embodiment between each restraining groove 31 with respect to bulging 1 50 ° of corners of being separated by successively of gear shift; Lock in order to utilize 31 pairs of gear shift drums of restraining groove, radially be fixedly connected with spring strut 41 in the position of corresponding limiting board 3 along gear shift drum axle 1 on the casing, referring to Fig. 4, be provided with pressure spring 42 in the spring strut 41, be provided with steel ball 43 between spring strut 41 inherent pressure springs 42 and the limiting board 3, the convex surface of steel ball 43 is positioned at one of them restraining groove 31 (referring to Fig. 3).Because each restraining groove 31 is corresponding one by one successively with respect to the angle position of the bulging axle 1 of gear shift with each specific location point with respect to the angle position of the bulging axle 1 of gear shift, so whenever change once shelves successively, steel ball 43 will just in time drop in one of them restraining groove 31 successively, on the drum of active rotation gear shift not axle 1 o'clock, the thrust of 42 pairs of steel balls 43 of pressure spring will stop limiting board 3 to rotate, and then play the locking effect.
In addition, as shown in Figure 3, locate between limiting board 3 and gear shift drum 2 for the ease of when assembling in the present embodiment, limiting board 3 is provided with first positioning pin hole (hole at locating stud 32 places among the figure), being provided with the second positioning pin hole (not shown), be plugged with locating stud 32 in first positioning pin hole and second positioning pin hole on the gear shift drum 2 near corresponding first positioning pin hole on the end face of limiting board 3 one sides.
In the present embodiment, the corner of being separated by between each specific location point not necessarily must be 50 °, also can be other angles, the corner of being separated by between them also needn't be identical, only need to guarantee that each restraining groove 31 is corresponding one by one successively with respect to the angle position of the bulging axle 1 of gear shift with each specific location point with respect to the angle position of the bulging axle 1 of gear shift, can guarantee whenever to change successively once shelves, steel ball 43 will just in time drop in one of them restraining groove 31 successively.In the present embodiment, the number of gearshift groove 21 is not limited to two, and its number is decided by the gear number of speed changer, and the bottom of restraining groove 31 can be arc, and the both sides of curved bottom can be the inclined-plane.
Above-described embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model all should fall in the definite protection domain of the utility model claims.
Claims (4)
1. gear shift drum-type gearshift mechanism with self-locking device, comprise casing, be connected with gear shift drum axle (1) on the described casing rotationally, described gear shift drum axle (1) is gone up the coaxial gear shift drum (2) that is fixedly connected with, the annular outer wall of described gear shift drum (2) is provided with at least one gear shift groove (21), all described gear shift grooves (21) have several specific location point altogether, it is characterized in that:
Be fixedly connected with limiting board (3) on the end face of described gear shift drum (2) one ends, the annular outer wall of limiting board (3) is provided with the restraining groove (31) of described specific location point number, and each restraining groove (31) is corresponding one by one successively with respect to the angle position of described gear shift drum axle (1) with each described specific location point with respect to the angle position of described gear shift drum axle (1);
Radially be fixedly connected with spring strut (41) in the position of the described limiting board of correspondence (3) along gear shift drum axle (1) on the described casing, be provided with pressure spring (42) in the spring strut (41), be provided with steel ball (43) between inherent pressure spring of spring strut (41) (42) and the described limiting board (3), the convex surface of steel ball (43) is positioned at one of them described restraining groove (31).
2. the gear shift drum-type gearshift mechanism of band self-locking device according to claim 1, it is characterized in that: described limiting board (3) is provided with first positioning pin hole, described gear shift drum (2) is gone up being provided with second positioning pin hole near corresponding described first positioning pin hole on the end face of limiting board (3) one sides, is plugged with locating stud (32) in described first positioning pin hole and second positioning pin hole.
3. the gear shift drum-type gearshift mechanism of band self-locking device according to claim 2 is characterized in that: the number of described gear shift groove (21) is two, and the number of described restraining groove (31) is seven.
4. the gear shift drum-type gearshift mechanism of band self-locking device according to claim 3 is characterized in that: the bottom of described restraining groove (31) is an arc, and the both sides of described curved bottom are the inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220658907 CN203098836U (en) | 2012-12-04 | 2012-12-04 | Shifting drum type shift mechanism with self-lock device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220658907 CN203098836U (en) | 2012-12-04 | 2012-12-04 | Shifting drum type shift mechanism with self-lock device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203098836U true CN203098836U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220658907 Expired - Lifetime CN203098836U (en) | 2012-12-04 | 2012-12-04 | Shifting drum type shift mechanism with self-lock device |
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| CN (1) | CN203098836U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251307A (en) * | 2013-06-28 | 2014-12-31 | 本田技研工业株式会社 | Shift position detecting means |
| CN104534078A (en) * | 2014-12-30 | 2015-04-22 | 东风汽车公司 | Electrically-controlled full-time chained transfer case assembly structure |
| CN105799485A (en) * | 2016-04-15 | 2016-07-27 | 燕山大学 | Mode-changing actuating mechanism of multimode coupling driving system for vehicle |
| CN109869481A (en) * | 2017-12-05 | 2019-06-11 | Avl里斯脱有限公司 | Shift device for speed changer |
| CN110039491A (en) * | 2019-03-29 | 2019-07-23 | 马鞍山华东回转支承有限公司 | A kind of pivoting support automatic measurement assembly bench |
-
2012
- 2012-12-04 CN CN 201220658907 patent/CN203098836U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251307A (en) * | 2013-06-28 | 2014-12-31 | 本田技研工业株式会社 | Shift position detecting means |
| CN104251307B (en) * | 2013-06-28 | 2016-08-31 | 本田技研工业株式会社 | Drive range detection device |
| CN104534078A (en) * | 2014-12-30 | 2015-04-22 | 东风汽车公司 | Electrically-controlled full-time chained transfer case assembly structure |
| CN105799485A (en) * | 2016-04-15 | 2016-07-27 | 燕山大学 | Mode-changing actuating mechanism of multimode coupling driving system for vehicle |
| CN109869481A (en) * | 2017-12-05 | 2019-06-11 | Avl里斯脱有限公司 | Shift device for speed changer |
| CN110039491A (en) * | 2019-03-29 | 2019-07-23 | 马鞍山华东回转支承有限公司 | A kind of pivoting support automatic measurement assembly bench |
| CN110039491B (en) * | 2019-03-29 | 2024-04-02 | 马鞍山瑞泰金属材料有限公司 | Automatic measurement assembly table for slewing bearing |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |
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| CX01 | Expiry of patent term |