CN2384035Y - Gear speed variator - Google Patents
Gear speed variator Download PDFInfo
- Publication number
- CN2384035Y CN2384035Y CN 99238038 CN99238038U CN2384035Y CN 2384035 Y CN2384035 Y CN 2384035Y CN 99238038 CN99238038 CN 99238038 CN 99238038 U CN99238038 U CN 99238038U CN 2384035 Y CN2384035 Y CN 2384035Y
- Authority
- CN
- China
- Prior art keywords
- gear
- circle
- spill
- perforation
- gears
- 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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- Structure Of Transmissions (AREA)
Abstract
The utility model relates to a gear speed variator for the transmission and the variable speed of a vehicle, composed of two gears perpendicular to each other, wherein, the shape of the tooth part of one gear is a convex circular body, and the end surface of the other gear engaged with the gear with the tooth part is provided with a concave tooth hole matched with the shape of the tooth part. The utility model has the advantages of simple and compact structure, low cost and easy production and only uses two gears to obtain a plurality of speeds and a forward and a backward two turning directions.
Description
The utility model relates to the system of vehicle transmission speed change gear.
The existing speed changer that is used on the Motor Vehicle is made up of several gears and gear shaft, realizes speed change by engagement back between the different size gear, and the gear quantity on this speed changer and the quantity of gear shaft are more, bulky, complex structure.And the speed changer of using on the bicycle (multi-speed bicycle), speed changer before and after being divided into has the different sprocket wheel of several sizes on each speed changer, lean on chain transmission between two speed changers, the structure of this speed changer is not compact, and its shift speed change not only bothers, and occurs taking off the chain phenomenon easily.
The gear-shift transmission simple in structure that provides a kind of system of vehicle transmission speed change to use is provided the purpose of this utility model.
The technical solution of the utility model is as follows:
The utility model includes axle and gear, and gear is on axle, and it is made up of two vertical each other gears, and the tooth portion of one of them gear is shaped as convex, and the end face of the gear that another is engaged with has the spill perforation that is complementary with wheel tooth portion shape.
The tooth portion of gear is shaped as spheroid or is cone.
The end face of gear has above tooth or the spill perforation of a circle, and another gear that is engaged with has above spill perforation or the tooth of a circle.
One circle neutral gear groove is arranged between per two circle spill perforations or the gear ring on the gear face, and spill perforation and neutral gear groove or gear ring and the alternately arrangement mutually of neutral gear groove.
Two gears all can become whole by two semi-circle gear loose joints.
Advantage of the present utility model is as follows:
The utility model only is made up of the gear of two Vertical Meshing, can obtain multiple speed ratio and turns to along contrary two.It is simple in structure, compact, volume is little, and cost is low, can be used on the speed change of Motor Vehicle and bicycle.
Description of drawings:
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model structural representation.
Among Fig. 1: small gear (19) is vertical each other with gearwheel (8), and the tooth portion of small gear (19) is shaped as the cone tooth, the spill perforation (11), (14) that are complementary with the tooth portion of the end face of the gearwheel (8) of small gear (19) engagement and small gear (19).Small gear (19) is that two semi-circle gears (7,15) flexibly connect whole by dovetail and dovetail groove, the two ends of two springs (6,16) are connected with two semi-circle gears (7,15) and fork shaft (3) respectively, operating handle (4) passes positioning work piece (5) back is connected in fork shaft (3) by bearing (17) front end, the front end of fork shaft (3) is connected with two semi-circle gears (7,15), the rear end is connected with axle (2), and axle (2) is connected on the support (1) by bearing (18); Gearwheel (8) is connected on the support (9) by bearing (10), the end face of gearwheel (8) has two circle spill perforations (11,14), spill perforation (11,14) is alternately arranged mutually with central fovea dish (13) and neutral gear groove (12), the width of neutral gear groove (12) and the degree of depth are more than or equal to the height of small gear (19) tooth, and central fovea dish (11) is more than or equal to the diameter of small gear (19).
During speed change, operating handle (4) is pushed into backward first grade of positioning work piece (5), fork shaft (3), bearing (17), spring (16), semi-circle gear (15) moves simultaneously, semi-circle gear (19) is in central fovea dish (13) lining of gearwheel (8), can not after move, rotation along with gearwheel (8), semi-circle gear (15) enters spill perforation (14) and gearwheel (8) engagement, and semi-circle gear (19) is along with the rotation of gearwheel (8), pulling force by spring (6) forms an overall gear with (15), again operating handle (4) is pushed into second grade backward with said method, third gear ... small gear (19) enters neutral gear groove (12), spill perforation (11) and with gearwheel (8) engagement, thereby realize speed change; Operating handle (4) is pushed away forward, fork shaft (3), bearing (17), spring (6), semi-circle gear (7), semi-circle gear (15), spring (16) are crossed central fovea dish (13) simultaneously and are crossed the axle center and make semi-circle gear (7), (15) successively enter spill perforation (14) and gearwheel (8) engagement, realize reversing.
Among Fig. 2: the tooth portion of small gear (21) is shaped as the cone tooth, with the end face of the gearwheel of small gear (21) engagement and the spill perforation (28 that small gear (21) tooth portion shape is complementary, 30,33), gearwheel connects into integral body by two semi-circle gears by dovetail and dovetail groove, the crank end of bent axle (22) is connected on the semi-circle gear, the rear end is connected on the support (9) by bearing (10), one end of support pull bar (27) is connected on another semi-circle gear, the other end of support pull bar (27) links to each other with sliding sleeve (24) and is enclosed within on the slide bar (25), slide bar (25) links to each other with sliding sleeve (23), bearing (17) is arranged in the operating handle (4), sliding sleeve (23,26), bearing (17) is enclosed within on the bent axle (22), three circle spill perforations (28 are arranged on the end face of gearwheel, 30,33), spill perforation (28,30, neutral gear groove (29 is arranged respectively 33), 32), central fovea dish (31), small gear (21) is connected with axle (2) with the affixed back of fork shaft (20), and axle (2) is connected on the support (1) by the bearing on it (18).The width of neutral gear groove (29,32) and the degree of depth are more than or equal to the height and the degree of depth of small gear (21) tooth portion, and the diameter of central fovea dish (31) is more than or equal to the diameter of small gear (21).
During speed change, operating handle (4) is pushed away forward in positioning work piece (15), sliding sleeve (23), bearing (17), sliding sleeve (24), slide bar (25), sliding sleeve (26), support pull bar (27) moves forward simultaneously, gearwheel can not move forward, when support pull bar (27) forces sliding sleeve (24) reach, along slide bar (25) bent axle (22) that slips away two semi-circle gears of gearwheel are staggered, all gear rings on the gearwheel end face become helical ring gear, rotation along with gearwheel, small gear (21) will be along helical ring gear, debouch spill perforation (28), neutral gear groove (29), spill perforation (30), neutral gear groove (32), each grade of spill perforation (33), operating handle (4) reduction is in original position, gearwheel becomes full circle, and small gear (21) meshes with the spill perforation (22) of gearwheel, and speed change realizes.The speedup or the deceleration of the direction of operating of its operating handle (4) (preceding pushing away or pusher) decision speed changer.
Claims (5)
1. gear-shift transmission, axle and gear are arranged, and gear is characterized in that on axle: it is made up of two two vertical each other gears, the tooth portion of one of them gear is shaped as convex, and the end face of the gear that another is engaged with has the spill perforation that is complementary with wheel tooth portion shape.
2. according to the described gear-shift transmission of claim, it is characterized in that: the tooth portion of gear is shaped as spheroid or is cone.
3. according to the described gear-shift transmission of claim, it is characterized in that: the end face of gear has above tooth or the spill perforation of a circle, and another gear that is engaged with has above spill perforation or the tooth of a circle.
4. according to the described gear-shift transmission of claim, it is characterized in that: a circle neutral gear groove is arranged between per two circle spill perforations or the gear ring on the gear face, and spill perforation and neutral gear groove or gear ring and the alternately arrangement mutually of neutral gear groove.
5. according to the described gear-shift transmission of claim, it is characterized in that: two gears all can become whole by two semi-circle gear loose joints.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99238038 CN2384035Y (en) | 1999-07-05 | 1999-07-05 | Gear speed variator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99238038 CN2384035Y (en) | 1999-07-05 | 1999-07-05 | Gear speed variator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2384035Y true CN2384035Y (en) | 2000-06-21 |
Family
ID=34025554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99238038 Expired - Fee Related CN2384035Y (en) | 1999-07-05 | 1999-07-05 | Gear speed variator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2384035Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089967A (en) * | 2013-01-28 | 2013-05-08 | 南京航空航天大学 | Variable transmission ratio gear drive mechanism |
| EP3730395A1 (en) * | 2019-04-22 | 2020-10-28 | CeramicSpeed Sport A/S | A gear shifting system |
-
1999
- 1999-07-05 CN CN 99238038 patent/CN2384035Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089967A (en) * | 2013-01-28 | 2013-05-08 | 南京航空航天大学 | Variable transmission ratio gear drive mechanism |
| CN103089967B (en) * | 2013-01-28 | 2015-08-12 | 南京航空航天大学 | A kind of gear drive of variable gear ratio |
| EP3730395A1 (en) * | 2019-04-22 | 2020-10-28 | CeramicSpeed Sport A/S | A gear shifting system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |