CN102720808A - Gearbox steering mechanism - Google Patents
Gearbox steering mechanism Download PDFInfo
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- CN102720808A CN102720808A CN201210222781XA CN201210222781A CN102720808A CN 102720808 A CN102720808 A CN 102720808A CN 201210222781X A CN201210222781X A CN 201210222781XA CN 201210222781 A CN201210222781 A CN 201210222781A CN 102720808 A CN102720808 A CN 102720808A
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- gear
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- intermediate gear
- tooth
- gearbox
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Abstract
The invention relates to a gearbox steering mechanism on an agricultural machine, which comprises steering shafts 1 and an intermediate gear 4 which is coaxially arranged on the steering shafts 1 and is provided with internal teeth, wherein a left steering gear 3 and a right steering gear 8 are respectively sleeved on the steering shafts 1 at the two sides of the intermediate gear 4 in a sliding way; big teeth meshed with the internal teeth of the intermediate gear 4 are arranged at one sides of the left steering gear 3 and the right steering gear 8, and small teeth are arranged at the other sides; a left steering shift fork 2 and a right steering shift fork 9 are correspondingly arranged on the left steering gear 3 and the right steering gear 8; a left return spring 11 and a right return spring 10 are sleeved at the two ends of the steering shafts 1; and a connecting gear 5 is coaxially fixed on the steering shafts 1, and the connecting gear 5 is arranged between the left steering gear 3 and the right steering gear 8 and is meshed with the internal teeth of the intermediate gear 4. The gearbox steering mechanism has the advantages of novel structure, large transfer torque, long service life, good clutch performance, high production efficiency and low manufacturing cost.
Description
Technical field
The present invention relates to agricultural machinery technological field, specifically is a kind of gearbox steering equipment.
Background technique
Gearbox steering equipment on the farm machinery mainly adopts jaw clutch formula and differential type at present.The existing steering equipment that adopts the jaw clutch formula, the intermediate gear both sides have the tooth embedding, about the steering gear that has the tooth embedding is installed, intermediate gear is through tooth embedding and steering gear clutch.For example one Chinese patent application 201120171478.2; A kind of reaper gearbox steering equipment of structure of jaw clutch formula of employing is disclosed; Though the angle angle of its clutch tooth junction through changing intermediate gear and steering gear, and the clutch tooth that changes intermediate gear cuts the mode of angle makes clutch tooth difficult drop-off; Improved disengaging performance, can reduce wear to a certain extent.But still there is the common fault of jaw clutch formula structure in this reaper gearbox steering equipment: steering equipment uses frequent; The embedding of clutch tooth frequently combines and separates; Make the wearing and tearing of clutch tooth embedding place junction plane be exceedingly fast, and faster near the clutch tooth embedding side abrasion of end, formed an inclined-plane; Intermediate gear and steering gear clutch tooth are thrown off automatically, cause the moment of torsion of transmission to reduce; And the part manufacturing efficiency that has the embedding of clutch tooth is low, and manufacture cost is high.Now, the gearbox steering equipment of some non-jaw clutch formulas or non-differential type also occurred, for example one Chinese patent application 200520116510.1; A kind of small hand tractor internal gear type steering equipment is disclosed; The inner face both sides of the intermediate gear of this steering equipment have internal tooth, the internal tooth of both sides respectively with the engagement of left and right steering gear, have advantages such as simple and compact for structure, that operation is light, turn to flexibly; But the processing of this intermediate gear is comparatively complicated, and manufacture cost is higher.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of gearbox steering equipment, its novel structure, and transmitting torque is big, long service life, disengaging performance is good, and manufacturing efficiency is high, low cost of manufacture.
For solving above-mentioned prior art problems, the present invention adopts following scheme:
Gearbox steering equipment comprises steering shaft, the same intermediate gear that is located on the steering shaft and has internal tooth; Flip sleeve is equipped with left and right steering gear respectively on the steering shaft of intermediate gear both sides; One side of left and right steering gear is provided with the canine tooth with the engagement of intermediate gear internal tooth, and opposite side is provided with little tooth; Correspondence is provided with the left and right shift fork that turns on left and right steering gear; Be with left and right return spring at the two ends of steering shaft; It is characterized in that: coaxially on the said steering shaft be fixed with one and connect gear, this connections gear is located between the left and right steering gear and is meshed with the internal tooth of said intermediate gear.
In order to locate said intermediate gear better and to connect gear; Make intermediate gear with connect gear close-coupled more; Said connection gear is provided with at least one positioning hole radially; The internal tooth of said intermediate gear is provided with and the corresponding locating slot of positioning hole, and said connection gear and intermediate gear insert described positioning hole through locating stud and locating slot is realized both relative positionings.
More excellent, said positioning hole is a circular hole.
More excellent, said positioning hole is equally distributed four.
More excellent, the same circle distribution in said locating slot edge is on each internal tooth of intermediate gear.
More excellent, the internal diameter of little tooth one side of said left and right steering gear is greater than the internal diameter of canine tooth one side, and an end correspondence of said left and right return spring is located between little tooth one side and steering shaft of left and right steering gear.The two ends of said left and right return spring are respectively equipped with the packing ring coaxial with steering shaft; Away from two packing rings of intermediate gear, the steering shaft of the end that it does not contact with left and right return spring is provided with coaxial shaft block ring.
More excellent, also be provided with the shaft block ring coaxial near the end face of said connection gear with steering shaft.
Compare with existing technology, advantage of the present invention is:
1, intermediate gear inner face of the present invention is provided with internal tooth, and with left and right steering gear tight engagement, its transmitting torque is big, long service life, disengaging performance is good;
2, intermediate gear of the present invention is provided with locating slot, connects gear and is provided with positioning hole, and intermediate gear is located through locating stud with connecting gear, makes intermediate gear closely be fixedly connected with connecting gear, novel structure, and assembling is simple;
3, the internal tooth of intermediate gear of the present invention adopts the profile of tooth broaching tool to draw bits to be shaped, and manufacturing efficiency is high, low cost of manufacture.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the sectional view of steering shaft of the present invention, intermediate gear and connection gear connection place;
Fig. 3 is a structure explosive view of the present invention;
Fig. 4 is intermediate gear of the present invention and the structural representation that connects gear;
Fig. 5 is a work schematic representation of the present invention.
The figure number explanation:
1 ... Steering shaft 2 ... Left steering shift fork 3 ... The left steering gear
4 ... Intermediate gear 5 ... Connect gear 6 ... Locating stud
7,12,17 ... Shaft block ring 8 ... Right steering gear 9 ... The right steering shift fork
10 ... Right return spring 11 ... Left side return spring 18 ... Locating slot
13,14,15,16 ... Packing ring 19 ... Positioning hole 20 ... Left side reduction gear
21 ... Left side actuation gear 22 ... Left half axle 23 ... Right reduction gear
24 ... Right actuation gear 25 ... Right axle shaft
Embodiment
Accompanying drawing discloses concrete structure of the present invention without limitation, below in conjunction with accompanying drawing the present invention is further described.
Shown in Fig. 1～4, gearbox steering equipment comprises steering shaft 1, the same intermediate gear 4 that is located on the steering shaft 1 and has internal tooth; Flip sleeve is equipped with left and right steering gear 3,8 respectively on the steering shaft 1 of intermediate gear 4 both sides; One side of left and right steering gear 3,8 is provided with the canine tooth with the engagement of intermediate gear 4 internal tooths, and opposite side is provided with little tooth; Correspondence is provided with the left and right shift fork 2,9 that turns on left and right steering gear 3,8; Be with left and right return spring 11,10 at the two ends of steering shaft 1; Coaxially on the said steering shaft 1 be fixed with one and connect gear 5, this connections gear 5 is located at left and right steering gear 3, between 8 and and the internal tooth of said intermediate gear 4 mesh.
Said connection gear 5 is provided with the positioning hole 19 of four circles radially; The internal tooth of said intermediate gear 4 is provided with and positioning hole 19 corresponding locating slots 18; On each internal tooth of intermediate gear 4, said connection gear 5 inserts described positioning hole 19 with intermediate gear 4 through four locating studs 6 and realizes both relative positionings with locating slot 18 locating slot 18 along same circle distribution.
The internal diameter of said left and right steering gear 3,8 little tooth one sides is greater than the internal diameter of canine tooth one side, and an end correspondence of said left and right return spring 11,10 is located between little tooth one side and steering shaft 1 of left and right steering gear 3,8.The two ends of said left and right return spring 11,10 are respectively equipped with the packing ring 13,14,15,16 coaxial with steering shaft 1; Away from two packing rings 13,16 of intermediate gear 4, the steering shaft 1 of the end that it does not contact with left and right return spring 11,10 is provided with coaxial shaft block ring 12,17.
Also be provided with the shaft block ring 7 coaxial near the end face of said connection gear 5, with fixing intermediate gear 4 better with steering shaft 1.
As shown in Figure 5, intermediate gear 4 with connect gear 5 through locating stud 6 location and be fixedly connected, connect gear 5 and be fixed on the steering shaft 1; Left steering shift fork 2 control left steering gears 3 slide on steering shaft 1; Left steering gear 3 is enclosed within on the steering shaft 1 with left return spring 11 skies; Left steering gear 3 is under left return spring 11 pressure; Slide to the right and intermediate gear 4 engagement transferring power, and left steering gear 3 also can slide and disengage from left under the control of left steering shift fork 2; The gearwheel of left side reduction gear 20 and 3 engagements of left steering gear, and the small gear of left reduction gear 20 and 21 engagements of left actuation gear; Left side actuation gear 21 drives left half axle 22, and left half axle 22 connects left driving sprocket wheel.Right steering shift fork 9 control right steering gears 8 slide on steering shaft 1; Right steering gear 8 is enclosed within on the steering shaft 1 with right return spring 10 skies; Right steering gear 8 is under right return spring 10 pressure; Slide left and intermediate gear 4 engagement transferring power, and right steering gear 8 also can slide and disengage to the right under the control of right steering shift fork 9; The gearwheel of right reduction gear 23 and 8 engagements of right steering gear, and the small gear of right reduction gear 23 and 24 engagements of right actuation gear; Right actuation gear 24 drives right axle shaft 25, and right axle shaft 25 connects right driving sprocket wheel.
During real work; When left steering gear 3 under left return spring 11 pressure; After the internal tooth of slip and intermediate gear 4 engagement to the right, power transmits via intermediate gear 4, left steering gear 3, left reduction gear 20, left actuation gear 21 and drives left half axles 22 rotation outputting powers; After left steering shift fork 2 control left steering gears 3 slided internal tooth disengage from intermediate gear 4 left, transmission of power was cut off, and simultaneously left reduction gear 20, left actuation gear 21 and left half axle 22 stop driving.When right steering gear 8 under right return spring 10 pressure, after the internal tooth engagement with intermediate gear 4 of sliding left, power transmits via intermediate gear 4, right steering gear 8, right reduction gear 23, right actuation gear 24 and drives right axle shafts 25 and rotate outputting powers; After right steering shift fork 9 control right steering gears 8 slided internal tooth disengage from intermediate gear 4 to the right, transmission of power was cut off, and simultaneously right reduction gear 23, right actuation gear 24 and right axle shaft 25 stop driving.
Claims (8)
1. gearbox steering equipment comprises steering shaft (1), is located in the intermediate gear (4) that steering shaft (1) went up and had internal tooth together; Flip sleeve is equipped with left and right steering gear (3,8) respectively on the steering shaft (1) of intermediate gear (4) both sides; One side of left and right steering gear (3,8) is provided with the canine tooth with the engagement of intermediate gear (4) internal tooth, and opposite side is provided with little tooth; Go up correspondence at left and right steering gear (3,8) and be provided with the left and right shift fork (2,9) that turns to; Be with left and right return spring (11,10) at the two ends of steering shaft (1); It is characterized in that: said steering shaft (1) goes up and coaxially to be fixed with one and to connect gear (5), and this connections gear (5) is located between the left and right steering gear (3,8) and is meshed with the internal tooth of said intermediate gear (4).
2. gearbox according to claim 1 steering equipment; It is characterized in that: said connection gear (5) is provided with at least one positioning hole (19) radially; The internal tooth of said intermediate gear (4) is provided with and the corresponding locating slot of positioning hole (19) (18), and said connection gear (5) and intermediate gear (4) insert described positioning hole (19) through locating stud (6) and locating slot (18) is realized both relative positionings.
3. gearbox according to claim 2 steering equipment, it is characterized in that: said positioning hole (19) is a circular hole.
4. according to claim 2 or 3 described gearbox steering equipment, it is characterized in that: said positioning hole (19) is equally distributed four.
5. according to claim 2 or 3 described gearbox steering equipment, it is characterized in that: said locating slot (18) along same circle distribution on each internal tooth of intermediate gear (4).
6. gearbox according to claim 1 and 2 steering equipment; It is characterized in that: the internal diameter of little tooth one side of said left and right steering gear (3,8) is greater than the internal diameter of canine tooth one side, and an end correspondence of said left and right return spring (11,10) is located between little tooth one side and steering shaft (1) of left and right steering gear (3,8).
7. gearbox according to claim 6 steering equipment is characterized in that: the packing ring that two ends are respectively equipped with and steering shaft (1) is coaxial (13,14,15,16) of said left and right return spring (11,10); Away from two packing rings (13,16) of intermediate gear (4), the steering shaft (1) of the end that it does not contact with left and right return spring (11,10) is provided with coaxial shaft block ring (12,17).
8. gearbox according to claim 1 and 2 steering equipment is characterized in that: near the shaft block ring (7) that end face also is provided with and steering shaft (1) is coaxial of said connection gear (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210222781XA CN102720808A (en) | 2012-06-29 | 2012-06-29 | Gearbox steering mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210222781XA CN102720808A (en) | 2012-06-29 | 2012-06-29 | Gearbox steering mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102720808A true CN102720808A (en) | 2012-10-10 |
Family
ID=46946645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210222781XA Pending CN102720808A (en) | 2012-06-29 | 2012-06-29 | Gearbox steering mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102720808A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909767A (en) * | 2016-06-21 | 2016-08-31 | 滁州悦达实业有限公司 | Harvester gearbox output shaft mechanism and harvester gearbox |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3280650A (en) * | 1963-12-09 | 1966-10-25 | Albert L Clement | Synchronizer for transmission |
| CN201747891U (en) * | 2010-06-13 | 2011-02-16 | 大同齿轮(昆山)有限公司 | Assembled gear |
| CN202077405U (en) * | 2011-05-26 | 2011-12-21 | 浙江浦江齿轮有限公司 | Steering mechanism of harvester gearbox |
| CN202077404U (en) * | 2011-05-26 | 2011-12-21 | 浙江浦江齿轮有限公司 | Gearbox steering mechanism of harvester |
| CN202077406U (en) * | 2011-05-26 | 2011-12-21 | 浙江浦江齿轮有限公司 | Gear box steering mechanism of crawler type harvester |
| CN202768750U (en) * | 2012-06-29 | 2013-03-06 | 康章保 | Speed changing box steering mechanism |
-
2012
- 2012-06-29 CN CN201210222781XA patent/CN102720808A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3280650A (en) * | 1963-12-09 | 1966-10-25 | Albert L Clement | Synchronizer for transmission |
| CN201747891U (en) * | 2010-06-13 | 2011-02-16 | 大同齿轮(昆山)有限公司 | Assembled gear |
| CN202077405U (en) * | 2011-05-26 | 2011-12-21 | 浙江浦江齿轮有限公司 | Steering mechanism of harvester gearbox |
| CN202077404U (en) * | 2011-05-26 | 2011-12-21 | 浙江浦江齿轮有限公司 | Gearbox steering mechanism of harvester |
| CN202077406U (en) * | 2011-05-26 | 2011-12-21 | 浙江浦江齿轮有限公司 | Gear box steering mechanism of crawler type harvester |
| CN202768750U (en) * | 2012-06-29 | 2013-03-06 | 康章保 | Speed changing box steering mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909767A (en) * | 2016-06-21 | 2016-08-31 | 滁州悦达实业有限公司 | Harvester gearbox output shaft mechanism and harvester gearbox |
| CN105909767B (en) * | 2016-06-21 | 2018-07-31 | 滁州悦达实业有限公司 | A kind of harvester gear box output shaft mechanism and harvester gear box |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121010 |