CN206206516U - Speed-changing gear box - Google Patents

Speed-changing gear box Download PDF

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Publication number
CN206206516U
CN206206516U CN201621254617.7U CN201621254617U CN206206516U CN 206206516 U CN206206516 U CN 206206516U CN 201621254617 U CN201621254617 U CN 201621254617U CN 206206516 U CN206206516 U CN 206206516U
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China
Prior art keywords
gear
roller
output shaft
group
dish
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Active
Application number
CN201621254617.7U
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Chinese (zh)
Inventor
郭保可
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WEIFANG TONGFANG MACHINERY CO Ltd
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WEIFANG TONGFANG MACHINERY CO Ltd
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Priority to CN201621254617.7U priority Critical patent/CN206206516U/en
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Abstract

The utility model discloses a kind of speed-changing gear box, power input shaft is connected with the first roller gear, and power output shaft is connected with the second roller gear;Jackshaft is in tilted layout relative to power input shaft and power output shaft, jackshaft is fixedly connected with first gear group and second gear group, first gear group and second gear group are different by one or more external diameters respectively and be separated by the gear of predetermined distance and constitute, at least one feather key is connected to corresponding axle in both first roller gear and the second roller gear, the first roller gear that feather key is connected to power input shaft is engaged with the gear in first gear group, and the second roller gear that feather key is connected to power output shaft is engaged with the gear in second gear group.In narrow space, the speed change of few axle many gears can be realized.

Description

Speed-changing gear box
Technical field
The utility model belongs to gearbox technical field, and in particular to a kind of speed-changing gear box.
Background technology
Speed changer is the mechanism for changing rotating speed and moment of torsion from engine, and it can be fixed or stepping changes output shaft With input shaft gearratio, also known as gearbox.Speed changer is made up of variable transmission mechanism and operating mechanism, and transmission mechanism is big multiplex general Logical gear drive, what is also had uses Planetary Gear Transmission.Ordinary gear transmission shifting mechanism is typically with shifting slide gear and synchronizer etc..
The internal structure complexity of such as traditional gearbox of rice transplanter, volume are big, occupancy vehicle space is more.Oil circuit is generally located in On left and right two tanks, and because box house local structural features are more, oil circuit it is complex-shaped, directly affect oil stream The making of amount and mould.Spacing in the rows shift fork handle is generally disc type, and operating personnel hold disk can be with along the push-and-pull of shift fork direction of principal axis The replacing of spacing in the rows is realized, but this mode is relatively elaborate, and its Surrounding Parts are more is easy to injure operating personnel.General rice transplanting The walking axle of machine is divided into left and right two, and two axles are connected by a gear, and attachment structure is more complicated, and the power of variable-speed shaft is to pass through One gear driven, two axles reach two shimmy mechanisms of left and right, so can not only increase manufacturing cost, once and structure Design is unreasonable also to cause whole machine operation unstable.
Under normal circumstances, in the case of realizing many gear speed changes, just may require that enough spaces to dispose variable-speed motor Structure so that the volume of gearbox is larger, takes up room also larger.
The content of the invention
Technical problem to be solved in the utility model is:A kind of speed-changing gear box is provided, simple structure can be narrow and small Space in, realize the speed change of few many gears of axle.
In order to solve the above technical problems, the technical solution of the utility model is:Speed-changing gear box, including:Casing, the case Power input shaft, jackshaft and power output shaft are installed in vivo, the power input shaft is connected with the first roller gear, institute State power output shaft and be connected with the second roller gear;The jackshaft is relative to the power input shaft and the power output Axle is in tilted layout, and the jackshaft is fixedly connected with first gear group and second gear group, the first gear group and described Two gear trains are different by one or more external diameters respectively and be separated by the gear of predetermined distance and constitute;First roller gear and institute At least one feather key is connected to corresponding axle, first roller gear and first tooth in stating both second roller gears Gear engagement in wheel group, second roller gear is engaged with the gear in the second gear group.
Further, the gear in the first gear group and second gear group is dish-shaped gear, the dish-shaped gear Tooth is distributed on the conical surface of conical trunk, and the shape of its teeth groove is consistent from big end to small end.
Further, the power input shaft be arranged in parallel with the power output shaft.
Further, side output shaft is installed, the side output shaft is with the power output shaft by circle in the casing Bevel gear pair is connected.
Further, first roller gear and second roller gear are straight spur gears, the dish-shaped tooth Wheel is the dish-shaped gear of straight-tooth.
Further, first roller gear and second roller gear are helical gears, the dish-shaped tooth Wheel is the dish-shaped gear of bent tooth.
By adopting the above-described technical solution, the beneficial effects of the utility model are:
By shifting fork mechanism, the dish of corresponding first roller gear and/or the second roller gear and various outer diameter is driven Gear is meshed or is separated, and jackshaft is in tilted layout relative to power input shaft and power output shaft, and any setting is installed The quantity of the gear in the first gear group and second gear group on jackshaft, so as in narrow and small cabinet space, be driven In the case that the number of axle is few, the speed change of many gears is realized.The speed-changing gear box can apply to speed change in need position, it is real The versatility of existing gearbox.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model first embodiment;
Fig. 2 is the A-A of Fig. 1 to cross section view;
Fig. 3 is the structural representation of the utility model second embodiment;
Fig. 4 is the structural representation of the utility model 3rd embodiment;
Fig. 5 is the structural representation of the utility model fourth embodiment;
In figure, 1- casings, 2- power input shafts, the roller gears of 3- first, 4- shifting fork mechanisms, 5- jackshafts, the teeth of 6- first Wheel group, 7- second gear groups, 8- power output shafts, the roller gears of 9- second, 10- sides output shaft, 11- power output axial cone teeth Wheel, 12- sides output shaft bevel gears.
Specific embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples.
Be related in this specification with sequence number name technical characteristic (such as the first roller gear, the second roller gear, First gear group, second gear group) merely to distinguishing each technical characteristic, the position not represented between each technical characteristic is closed System, erection sequence and job order etc..
First embodiment:
With reference to shown in Fig. 1 and Fig. 2, speed-changing gear box is rotated in casing 1 and is provided with power input shaft 2, jackshaft 5 And power output shaft 8.
Feather key is connected with the first roller gear 3 on power input shaft 2, shifting fork mechanism 4 can manually, electronic, liquid The modes such as dynamic, pneumatic or remote control control the first roller gear 3 to be moved axially along power input shaft 2.
Feather key is connected with the second roller gear 9 on power output shaft 8, shifting fork mechanism 4 can manually, electronic, liquid The modes such as dynamic, pneumatic or remote control control the second roller gear 9 to be moved axially along power output shaft 8.
Power input shaft 2 be arranged in parallel with power output shaft 8, certainly, under special circumstances, power input shaft 2 and power Output shaft 8 can also be obliquely installed.
Jackshaft 5 is in tilted layout relative to power input shaft 2 and power output shaft 8.It is fixedly connected with jackshaft 5 First gear group 6 and second gear group 7, first gear group 6 and second gear group 7 are different by multiple external diameters respectively and are separated by rule The gear composition of set a distance, all gears in gear train the connected mode such as can connect and jackshaft 5 is fixed by welding, being bonded Connection.By shifting fork mechanism 4, the gear in first gear group 6 can be meshed with the first roller gear 3, in second gear group 7 Gear can be meshed with the second roller gear 9.
In the present embodiment, the gear in first gear group 6 and second gear group 7 can be from dish-shaped gear.Dish-shaped tooth Wheel is a kind of special gear, and its tooth is distributed on the conical surface of conical trunk, and the shape of its teeth groove keeps from big end to small end Unanimously.It not only with angular wheel drive characteristic again with roller gear meshing characteristic, by set jackshaft 5 relative to The angle of inclination of power input shaft 2 and power output shaft 8, make the first roller gear 3 and/or the second roller gear 9 with it is corresponding Dish-shaped gear keep correct meshing relation, this is that the gearbox can be more with less power transmission shaft and compact structure realization The key of gear speed change.
Side output shaft 10 is also equipped with casing 1, power output shaft bevel gears are fixedly connected with power output shaft 8 11, output shaft bevel gears 12 in side are fixedly connected with side output shaft 10, side output shaft 10 is with power output shaft 8 by by power The taper gear pair connection of output shaft bevel gears 11 and the side output composition of shaft bevel gears 12.By side output shaft 10 can facilitate with The parts of periphery are connected, and are easy to the change of power direction and the output of power.In order to realize gear reversing function, it is also possible to Axle of carrier pulley is set in casing 1 to change power output direction.It should be appreciated that these changes are included in design of the present utility model Within.
In the present embodiment, the first roller gear 3 and the second roller gear 9 can be straight spur gears, now, dish Gear is the dish-shaped gear of straight-tooth.Certainly, the first roller gear 3 and the second roller gear 9 can also be helical gears, this When, dish-shaped gear is the dish-shaped gear of bent tooth.
Because first gear group 6 and second gear group 7 are different by multiple external diameters respectively and are separated by the dish of predetermined distance Gear constitute, when by shifting fork mechanism 4 pull roller gear along corresponding to axle move axially when, roller gear just can with not It is meshed with the dish-shaped gear of external diameter, so as to reach the effect of speed change.The quantity of gear and first gear group 6 and second gear The quantity of the dish-shaped gear in group 7 is relevant, and the present embodiment can realize neutral position and 3*3=9 power output gear, certainly, The quantity of dish-shaped gear is not limited to this.
Second embodiment:
As shown in figure 3, being with first embodiment difference, first gear group 6 is different by multiple external diameters and is separated by rule The dish-shaped gear composition of set a distance, and only one of which dish gear in second gear group 7.Second roller gear 9 is fixedly connected on On power output shaft 8, it is not necessary to moved axially along power output shaft 8.Only the first roller gear 3 is slided with power input shaft 2 It is bonded and connects, in the presence of shifting fork mechanism 4, can be moved axially along power input shaft 2, it is different from first gear group 6 outer The dish-shaped gear in footpath is meshed.The present embodiment can realize neutral position and 3*1=3 power output gear.
3rd embodiment:
As shown in figure 4, be with first embodiment difference, only one of which dish gear in first gear group 6, and the Two gear trains 7 are different by multiple external diameters and be separated by the dish-shaped gear of predetermined distance and constitute.First roller gear 3 is fixedly connected on dynamic On power input shaft 2, it is not necessary to moved axially along power input shaft 2.Only the second roller gear 9 and the feather key of power output shaft 8 Connection, in the presence of shifting fork mechanism 4, can move axially, with various outer diameter in second gear group 7 along power output shaft 8 Dish-shaped gear be meshed.The present embodiment can realize neutral position and 1*3=3 power output gear.
Fourth embodiment:
As shown in figure 5, be with first embodiment difference, only one of which dish gear in first gear group 6, and In second gear group 7 also only one of which dish gear.Second roller gear 9 is fixedly connected on power output shaft 8, with the second tooth Dish-shaped gear in wheel group 6 is meshed.First roller gear 3 is connected with the feather key of power input shaft 2, in the effect of shifting fork mechanism 4 Under, can be moved axially along power input shaft 2, it is meshed or is separated with the dish-shaped gear in first gear group 6, so that Reach the effect of speed change.The present embodiment can realize neutral position and 1*1=1 power output gear.
It is of course also possible to the first roller gear 3 is fixedly connected with power input shaft 2, the connection of the feather key of the second roller gear 9 On power output shaft 8.

Claims (6)

1. speed-changing gear box, including:
Casing, is provided with power input shaft, jackshaft and power output shaft in the casing, the power input shaft is connected with First roller gear, the power output shaft is connected with the second roller gear;Characterized in that,
The jackshaft is in tilted layout relative to the power input shaft and the power output shaft, and the jackshaft is fixed and connected First gear group and second gear group are connected to, the first gear group and the second gear group are respectively by one or more external diameters Gear compositions that are different and being separated by predetermined distance;
At least one feather key is connected to corresponding axle in both first roller gear and second roller gear, described First roller gear is engaged with the gear in the first gear group, in second roller gear and the second gear group Gear is engaged.
2. speed-changing gear box as claimed in claim 1, it is characterised in that the tooth in the first gear group and second gear group Wheel is dish-shaped gear, and the tooth of the dish-shaped gear is distributed on the conical surface of conical trunk, and the shape of its teeth groove is from big end to small End is consistent.
3. speed-changing gear box as claimed in claim 1 or 2, it is characterised in that the power input shaft and the power output Axle be arranged in parallel.
4. speed-changing gear box as claimed in claim 1 or 2, it is characterised in that side output shaft is provided with the casing, it is described Side output shaft is connected with the power output shaft by taper gear pair.
5. speed-changing gear box as claimed in claim 2, it is characterised in that first roller gear and second Cylinder Gear Wheel is straight spur gear, and the dish-shaped gear is the dish-shaped gear of straight-tooth.
6. speed-changing gear box as claimed in claim 2, it is characterised in that first roller gear and second Cylinder Gear Wheel is helical gears, and the dish-shaped gear is the dish-shaped gear of bent tooth.
CN201621254617.7U 2016-11-14 2016-11-14 Speed-changing gear box Active CN206206516U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621254617.7U CN206206516U (en) 2016-11-14 2016-11-14 Speed-changing gear box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621254617.7U CN206206516U (en) 2016-11-14 2016-11-14 Speed-changing gear box

Publications (1)

Publication Number Publication Date
CN206206516U true CN206206516U (en) 2017-05-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621254617.7U Active CN206206516U (en) 2016-11-14 2016-11-14 Speed-changing gear box

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106321743A (en) * 2016-11-14 2017-01-11 潍坊同方机械有限公司 Speed-changing gearbox

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106321743A (en) * 2016-11-14 2017-01-11 潍坊同方机械有限公司 Speed-changing gearbox

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