CN204146058U - For the carrier gear mechanism of the gearbox of crawler self-propelled combine harvester - Google Patents
For the carrier gear mechanism of the gearbox of crawler self-propelled combine harvester Download PDFInfo
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- CN204146058U CN204146058U CN201420594745.0U CN201420594745U CN204146058U CN 204146058 U CN204146058 U CN 204146058U CN 201420594745 U CN201420594745 U CN 201420594745U CN 204146058 U CN204146058 U CN 204146058U
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- idle gear
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- spacer
- gearbox
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Abstract
The utility model provides a kind of carrier gear mechanism of the gearbox for crawler self-propelled combine harvester, comprise idle gear shaft, Left Drive unit and right gear unit, described right gear unit comprises right large idle gear, right little idle gear and at least two needle bearings, described at least two needle bearings are set on described idle gear shaft vertically side by side, on at least two needle bearings described in the little idle gear in the described right side is set in, the little idle gear in a described left side is free to rotate relative to the little idle gear in the described right side, the carrier gear mechanism of this gearbox for crawler self-propelled combine harvester is provided with needle bearing between little idle gear and idle gear shaft, reduce the frictional force between them, even if relative rotation speed is very fast between little idle gear and idle gear shaft, in OL situation, also there will not be temperature too high, the situation of serious wear, ensure that reliability and the service life of carrier gear mechanism.
Description
Technical field
The utility model relates to gear transmission technology field, particularly relates to a kind of carrier gear mechanism of the gearbox for crawler self-propelled combine harvester.
Background technology
After all adopting the embedded copper sheathing of little idle gear at present in most of crawler self-propelled combine harvester moving gear box carrier gear mechanism, empty set is on idle gear shaft, idle gear shaft and copper sheathing form the structure of matched in clearance, and reduce frictional force by supply lubricating oil betwixt.Very easily because relative rotation speed between copper sheathing inner surface and idle gear shaft outer surface is too fast, overload causes temperature rising, frictional resistance increases in the carrier gear institution staff of this kind of structure, thus the wearing and tearing of idle gear shaft and copper sheathing matching surface are aggravated, shorten its service life so that lost efficacy.
Utility model content
The technical problems to be solved in the utility model is: in order to solve prior art carrier gear mechanism in due to the problem of the serious wear between idle gear shaft and little idle gear, the carrier gear mechanism that the utility model provides a kind of gearbox for crawler self-propelled combine harvester solves the problems referred to above.
The utility model solves the technical scheme that its technical problem adopts: a kind of carrier gear mechanism of the gearbox for crawler self-propelled combine harvester, comprise idle gear shaft, Left Drive unit and right gear unit, described Left Drive unit comprises left large idle gear and the little idle gear in a left side, described right gear unit comprises right large idle gear, right little idle gear and at least two needle bearings, the large idle gear in a described left side to be set on the little idle gear in a described left side and to fix with the little idle gear in a described left side, the large idle gear in the described right side to be set on the little idle gear in the described right side and to fix with the little idle gear in the described right side, described at least two needle bearings are set on described idle gear shaft vertically side by side, on at least two needle bearings described in the little idle gear in the described right side is set in, the little idle gear in a described left side is free to rotate relative to the little idle gear in the described right side.
As preferably, the quantity of described needle bearing is two, be respectively the first needle bearing and the second needle bearing from left to right, described right gear unit also comprises and is set in the first spacer on described idle gear shaft and the second spacer, described idle gear shaft has the shaft shoulder near described first spacer place, the both sides of described first spacer lean the left side at the described shaft shoulder and the first needle bearing respectively, and described second spacer leans the right side at described second needle bearing.
As preferably, the two ends end face of the little idle gear in the described right side offers a cannelure respectively, the bottom land of two described cannelures is withstood by described first spacer and the second spacer respectively, the cell wall of two described cannelures respectively with the outer wall of described first spacer and the outer wall matched in clearance of the second spacer.
As preferably, described idle gear shaft offers the axial oilhole extended vertically from the center of right side, and described first needle bearing is communicated with described axial oilhole respectively by the radial direction oil hole that two are opened on described idle gear shaft with the second needle bearing.
As preferably, the little idle gear in a described left side and described idle gear shaft are structure as a whole, the two ends of described idle gear shaft are respectively arranged with a roller bearing, inner ring and the described idle gear shaft of described roller bearing are fixed, and the described roller bearing being arranged on described idle gear shaft right-hand member withstands the right side of described second spacer.
As preferably, the inwall of the large idle gear in the described right side has the first internal spline, the little idle gear in the described right side comprises the first connecting portion and the first teeth portion, the outer wall of described first connecting portion has the first external splines, the little idle gear of the large idle gear in the described right side and the right side carries out circumference by the first internal spline and the first external splines to be fixed, the inwall of the large idle gear in a described left side has the second internal spline, the little idle gear in a described left side comprises the second connecting portion and the second teeth portion, the outer wall of described second connecting portion has the second external splines, the little idle gear of the large idle gear in a described left side and a left side carries out circumference by the second internal spline and the second external splines to be fixed.
As preferably, described right gear unit also comprises the first circlip, described first circlip is nested on the outer wall of described first connecting portion, described first teeth portion is protruding relative to described first connecting portion, the two ends of the large idle gear in the described right side are withstood by described first circlip and the first teeth portion respectively, described Left Drive unit also comprises the second circlip, described second circlip is nested on the outer wall of described second connecting portion, described second teeth portion is protruding relative to described second connecting portion, the two ends of the large idle gear in a described left side are withstood by described second circlip and the second teeth portion respectively.
The beneficial effects of the utility model are, the carrier gear mechanism of this gearbox for crawler self-propelled combine harvester is provided with needle bearing between little idle gear and idle gear shaft, reduce the frictional force between them, even if between little idle gear and idle gear shaft in very fast, the OL situation of relative rotation speed, also there will not be that temperature is too high, the situation of serious wear, ensure that reliability and the service life of carrier gear mechanism.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation of the utility model for the optimum embodiment of the carrier gear mechanism of the gearbox of crawler self-propelled combine harvester.
In figure 1, idle gear shaft, 2, right large idle gear, 3, right little idle gear, the 4, first circlip, 5, axial oilhole, 6, radial direction oil hole, 7, roller bearing, the 8, first spacer, 9, the second spacer, the 10, first needle bearing, the 11, second needle bearing, 12, cannelure.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As shown in Figure 1, the utility model provides a kind of carrier gear mechanism of the gearbox for crawler self-propelled combine harvester, comprise idle gear shaft 1, Left Drive unit and right gear unit, carrier gear mechanism is arranged in the gearbox of grain header, when grain header carries out left steering and right turn, two groups of gear units are respectively used to the transmission of power of left steering and right turn, Left Drive unit comprises left large idle gear and the little idle gear in a left side, right gear unit comprises right large idle gear 2, right little idle gear 3 and two needle bearings, left large idle gear to be set on left little idle gear and to fix with the little idle gear in a left side, right large idle gear 2 to be set on right little idle gear 3 and to fix with the little idle gear 3 in the right side, two needle bearings are set on idle gear shaft 1 vertically side by side, right little idle gear 3 is set on two needle bearings, left little idle gear is free to rotate relative to the right side little idle gear 3, needle bearing is arranged on the frictional force that can to reduce greatly between right little idle gear 3 and idle gear shaft 1 between them, even if relative rotation speed is very fast between right little idle gear 3 and idle gear shaft 1, in OL situation, also there will not be temperature too high, the situation of serious wear, ensure that reliability and the service life of carrier gear mechanism,
Two needle bearings are respectively the first needle bearing 10 and the second needle bearing 11 from left to right, right gear unit also comprises the first spacer 8 and the second spacer 9 be set on idle gear shaft 1, idle gear shaft 1 has the shaft shoulder near the first spacer 8 place, the both sides of the first spacer 8 lean the left side at the shaft shoulder and the first needle bearing 10 respectively, second spacer 9 leans the right side at the second needle bearing 11, thus carries out spacing in the axial direction to two needle bearings; The two ends end face of right little idle gear 3 offers a cannelure 12 respectively, the bottom land of two cannelures 12 is withstood by the first spacer 8 and the second spacer 9 respectively, make use of the first spacer 8 and the second spacer 9 carries out axial limiting to the little idle gear 3 in the right side simultaneously, the cell wall of two cannelures 12 respectively with the outer wall of the first spacer 8 and the outer wall matched in clearance of the second spacer 9, this prevents from producing larger friction between right little idle gear 3 and spacer;
In order to reduce the frictional force between right little idle gear 3 and idle gear shaft 1 further, idle gear shaft 1 offers the axial oilhole 5 extended vertically from the center of right side, first needle bearing 10 is communicated with axial oilhole 5 respectively by the radial direction oil hole 6 that two are opened on idle gear shaft 1 with the second needle bearing 11, lubricating oil is flow on needle bearing by axial oilhole 5 and radial direction oil hole 6, thus reduces frictional force;
Left little idle gear and idle gear shaft 1 are structure as a whole, the two ends of idle gear shaft 1 are respectively arranged with a roller bearing 7, inner ring and the idle gear shaft 1 of roller bearing 7 are fixed, the roller bearing 7 being arranged on idle gear shaft 1 right-hand member withstands the right side of the second spacer 9, the inwall of right large idle gear 2 has the first internal spline, right little idle gear 3 comprises the first connecting portion and the first teeth portion, the outer wall of the first connecting portion has the first external splines, right large idle gear 2 carries out circumference with the little idle gear 3 in the right side by the first internal spline and the first external splines to be fixed, the inwall of left large idle gear has the second internal spline, left little idle gear comprises the second connecting portion and the second teeth portion, the outer wall of the second connecting portion has the second external splines, left large idle gear and the little idle gear in a left side carry out circumference by the second internal spline and the second external splines to be fixed, right gear unit also comprises the first circlip 4, first circlip 4 is nested on the outer wall of the first connecting portion, first teeth portion is protruding relative to the first connecting portion, the two ends of right large idle gear 2 are withstood by the first circlip 4 and the first teeth portion respectively, Left Drive unit also comprises the second circlip, second circlip is nested on the outer wall of the second connecting portion, second teeth portion is protruding relative to the second connecting portion, the two ends of left large idle gear are withstood by the second circlip and the second teeth portion respectively.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on specification, must determine its technical scope according to right.
Claims (7)
1. the carrier gear mechanism for the gearbox of crawler self-propelled combine harvester, it is characterized in that: comprise idle gear shaft, Left Drive unit and right gear unit, described Left Drive unit comprises left large idle gear and the little idle gear in a left side, described right gear unit comprises right large idle gear, right little idle gear and at least two needle bearings, the large idle gear in a described left side to be set on the little idle gear in a described left side and to fix with the little idle gear in a described left side, the large idle gear in the described right side to be set on the little idle gear in the described right side and to fix with the little idle gear in the described right side, described at least two needle bearings are set on described idle gear shaft vertically side by side, on at least two needle bearings described in the little idle gear in the described right side is set in, the little idle gear in a described left side is free to rotate relative to the little idle gear in the described right side.
2. as claimed in claim 1 for the carrier gear mechanism of the gearbox of crawler self-propelled combine harvester, it is characterized in that: the quantity of described needle bearing is two, be respectively the first needle bearing and the second needle bearing from left to right, described right gear unit also comprises and is set in the first spacer on described idle gear shaft and the second spacer, described idle gear shaft has the shaft shoulder near described first spacer place, the both sides of described first spacer lean the left side at the described shaft shoulder and the first needle bearing respectively, described second spacer leans the right side at described second needle bearing.
3. as claimed in claim 2 for the carrier gear mechanism of the gearbox of crawler self-propelled combine harvester, it is characterized in that: the two ends end face of the little idle gear in the described right side offers a cannelure respectively, the bottom land of two described cannelures is withstood by described first spacer and the second spacer respectively, the cell wall of two described cannelures respectively with the outer wall of described first spacer and the outer wall matched in clearance of the second spacer.
4. as claimed in claim 3 for the carrier gear mechanism of the gearbox of crawler self-propelled combine harvester, it is characterized in that: described idle gear shaft offers the axial oilhole extended vertically from the center of right side, described first needle bearing is communicated with described axial oilhole respectively by the radial direction oil hole that two are opened on described idle gear shaft with the second needle bearing.
5. the carrier gear mechanism of the gearbox for crawler self-propelled combine harvester as described in any one of claim 1 ~ 4, it is characterized in that: the little idle gear in a described left side and described idle gear shaft are structure as a whole, the two ends of described idle gear shaft are respectively arranged with a roller bearing, inner ring and the described idle gear shaft of described roller bearing are fixed, and the described roller bearing being arranged on described idle gear shaft right-hand member withstands the right side of described second spacer.
6. as claimed in claim 5 for the carrier gear mechanism of the gearbox of crawler self-propelled combine harvester, it is characterized in that: the inwall of the large idle gear in the described right side has the first internal spline, the little idle gear in the described right side comprises the first connecting portion and the first teeth portion, the outer wall of described first connecting portion has the first external splines, the little idle gear of the large idle gear in the described right side and the right side carries out circumference by the first internal spline and the first external splines to be fixed, the inwall of the large idle gear in a described left side has the second internal spline, the little idle gear in a described left side comprises the second connecting portion and the second teeth portion, the outer wall of described second connecting portion has the second external splines, the little idle gear of the large idle gear in a described left side and a left side carries out circumference by the second internal spline and the second external splines to be fixed.
7. as claimed in claim 6 for the carrier gear mechanism of the gearbox of crawler self-propelled combine harvester, it is characterized in that: described right gear unit also comprises the first circlip, described first circlip is nested on the outer wall of described first connecting portion, described first teeth portion is protruding relative to described first connecting portion, the two ends of the large idle gear in the described right side are withstood by described first circlip and the first teeth portion respectively, described Left Drive unit also comprises the second circlip, described second circlip is nested on the outer wall of described second connecting portion, described second teeth portion is protruding relative to described second connecting portion, the two ends of the large idle gear in a described left side are withstood by described second circlip and the second teeth portion respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420594745.0U CN204146058U (en) | 2014-10-15 | 2014-10-15 | For the carrier gear mechanism of the gearbox of crawler self-propelled combine harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420594745.0U CN204146058U (en) | 2014-10-15 | 2014-10-15 | For the carrier gear mechanism of the gearbox of crawler self-propelled combine harvester |
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| Publication Number | Publication Date |
|---|---|
| CN204146058U true CN204146058U (en) | 2015-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420594745.0U Active CN204146058U (en) | 2014-10-15 | 2014-10-15 | For the carrier gear mechanism of the gearbox of crawler self-propelled combine harvester |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104303716A (en) * | 2014-10-15 | 2015-01-28 | 常州常发农业装备工程技术研究有限公司 | Carrier gear mechanism of gearbox for crawler self-propelled combine harvester |
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2014
- 2014-10-15 CN CN201420594745.0U patent/CN204146058U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104303716A (en) * | 2014-10-15 | 2015-01-28 | 常州常发农业装备工程技术研究有限公司 | Carrier gear mechanism of gearbox for crawler self-propelled combine harvester |
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| GR01 | Patent grant |