CN205013633U - Improvement structure suitable for loader torque converter - Google Patents
Improvement structure suitable for loader torque converter Download PDFInfo
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- CN205013633U CN205013633U CN201520773505.1U CN201520773505U CN205013633U CN 205013633 U CN205013633 U CN 205013633U CN 201520773505 U CN201520773505 U CN 201520773505U CN 205013633 U CN205013633 U CN 205013633U
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- drive pump
- transfer
- driving pump
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Abstract
The utility model discloses an improvement structure suitable for loader torque converter, including casing, two driving pump gears, transfer gear, branch moving axis, two driving pump gears pass through bearing rotatable the installation on the casing respectively, transfer gear installs on the casing and transfer gear and two driving pump gear engagement through a minute moving axis, bearing are rotatable respectively, driving pump gear and transfer gear all adopt thin high tooth. Because the utility model discloses a transfer gear and driving pump gear all adopt thin high tooth, adopt promptly littleer than the modulus of normal gear, the pressure angle is little, gear that the addendum coefficient is big, the profile of tooth becomes thin and high, two gears be between the 2 -3 at intermeshing in -process, the contact ratio and overlap ratio of its terminal surface, the increase of teeth of a cogwheel transverse contact ratio, gear engagement noise greatly reduced.
Description
Technical field
The utility model relates to engineering machinery field, particularly relates to a kind of structure-improved being applicable to loader torque-converters.
Background technique
Transfer gear and the drive pump gear of traditional loader torque-converters all adopt straight toothed spur gear, pressure angle α on its gear compound graduation circle is 20 °, addendum coefficient is 1, tip clearance coefficient is 0.25, and above-mentioned two gears are engaging each other in process, and the contact ratio of its end face is between 1-2, therefore between two flank of tooth, the amount of deformation produced is comparatively large, and its turn error is corresponding increase also, finally causes the increase of noise; Simultaneously higher to the requirement on machining accuracy of said gear, otherwise easily produce the increase of vibration and noise.
Summary of the invention
The purpose of this utility model is the structure-improved being applicable to loader torque-converters providing a kind of gear tooth noise little.
For achieving the above object, technical solution of the present utility model is:
The utility model is a kind of structure-improved being applicable to loader torque-converters, comprises casing, two drive pump gear, transfer gear, point moving axis; Two described drive pump gear are arranged on casing by bearing is rotatable respectively, and transfer gear to be arranged on casing and transfer gear engages with two drive pump gear by a point moving axis, bearing are rotatable respectively; Described drive pump gear and transfer gear all adopt thin and tall tooth.
Described drive pump gear and the pressure angle of graduated circle of transfer gear are all 12-20 °, and addendum coefficient is 1.2-1.5, and modulus is 1-5, make the contact ratio of drive pump gear and transfer gear reach more than 2.2.
Described drive pump gear and the pressure angle of graduated circle of transfer gear are all 14.5 °, and addendum coefficient is 1.25.
From design angle, gear tooth noise refers under theoretical meshing condition, in gear teeth meshing process due to the stressed change of gears meshing and the vibration that the turn error caused causes produce, this meshing noise process means cannot be eliminated or reduce, must eliminate or reduce by changing gear parameter the turn error that their produce in the design of gears stage, and what affect turn error is exactly contact ratio.When transverse contact ratio is less than, then along with a pair gears meshing is different from amount of deformation during two pairs of gears meshing, turn error is directly proportional to amount of deformation; If transverse contact ratio is greater than, be two pairs of gears meshing and three pairs of gears meshing, consequent amount of deformation is less, even if so in increase load, turn error also can not increase.A large amount of tests proves that noise reduces along with the increase of contact ratio, and special in transverse contact ratio is, keeping forever is in theory to gear teeth meshing, and its noise progression will sharply reduce, and improve complete machine stability.
Therefore, after adopting such scheme, because transfer gear of the present utility model and drive pump gear all adopt thin and tall tooth, namely adopt less than the modulus of normal gear, pressure angle is little, the gear that addendum coefficient is large, profile of tooth reduces and high, two gears are engaging each other in process, the contact ratio of its end face is between 2-3, and gear teeth transverse contact ratio increases, and gear tooth noise reduces greatly.
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is plan view of the present utility model;
Fig. 2 is the front view removing casing of the present utility model;
Fig. 3 is the axonometric drawing that the utility model transfer gear coordinates with drive pump gear;
Fig. 4 is the front view that the utility model transfer gear coordinates with drive pump gear;
Fig. 5 is the sectional view that the utility model drive pump gear coordinates;
Fig. 6 is the sectional view of the utility model transfer gear.
Embodiment
As shown in Figure 1 and Figure 2, the utility model is a kind of structure-improved being applicable to loader torque-converters, comprises casing 1, two drive pump gear 2, transfer gear 3, point moving axis 4.
Described two drive pump gear 2 are by bearing 21(as shown in Figure 3) be rotatablely respectively arranged on casing 1, transfer gear 3 to be arranged on casing 1 and transfer gear 3 engages (as shown in Figure 4) with two drive pump gear 2 by a point moving axis 31, bearing are rotatable respectively.
Described drive pump gear 2(is as shown in Figure 5) and transfer gear 3(is as shown in Figure 6) all adopt thin and tall tooth.Described drive pump gear 2 and the pressure angle of graduated circle of transfer gear 3 are all 12-20 °, and addendum coefficient is 1.2-1.5, and modulus is 1-5, make the contact ratio of drive pump gear and transfer gear reach more than 2.2.
In the present embodiment, described drive pump gear 2 and the pressure angle of graduated circle of transfer gear 3 are all 14.5 °, and addendum coefficient is 1.25.Because the pressure angle of graduated circle of original gear is reduced to 14.5 ° by the present embodiment, become rack barrel (profiling quantity is 0.01-0.02mm) at axial modification, tooth top carries out tip relief.Contact ratio and overlap ratio can be made like this to reach more than 2.2, two teeth are always had in engagement when namely place is often engaged, and make drive pump gear 2 and transfer gear 3 enter impact what engage by correction of the flank shape, depart to impact and reduce, greatly reduce gear-driven noise like this, decrease impact and improve working life.Shown the application of the thin and tall gear of this loader torque-converters by test data, probably can reduce by the noise of 4-5 decibels.
Emphasis of the present utility model is just: gear adopts thin and tall tooth.
The above, be only the utility model preferred embodiment, therefore can not limit with this scope that the utility model implements, the equivalence namely done according to the utility model claim and description change with modify, all should still belong in scope that the utility model patent contains.
Claims (3)
1. be applicable to a structure-improved for loader torque-converters, it is characterized in that: comprise casing, two drive pump gear, transfer gear, point moving axis; Two described drive pump gear are arranged on casing by bearing is rotatable respectively, and transfer gear to be arranged on casing and transfer gear engages with two drive pump gear by a point moving axis, bearing are rotatable respectively; Described drive pump gear and transfer gear all adopt thin and tall tooth.
2. the structure-improved being applicable to loader torque-converters according to claim 1, it is characterized in that: described drive pump gear and the pressure angle of graduated circle of transfer gear are all 12-20 °, addendum coefficient is 1.2-1.5, modulus is 1-5, makes the contact ratio of drive pump gear and transfer gear reach more than 2.2.
3. the structure-improved being applicable to loader torque-converters according to claim 1, is characterized in that: described drive pump gear and the pressure angle of graduated circle of transfer gear are all 14.5 °, and addendum coefficient is 1.25.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520773505.1U CN205013633U (en) | 2015-10-08 | 2015-10-08 | Improvement structure suitable for loader torque converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520773505.1U CN205013633U (en) | 2015-10-08 | 2015-10-08 | Improvement structure suitable for loader torque converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205013633U true CN205013633U (en) | 2016-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520773505.1U Active CN205013633U (en) | 2015-10-08 | 2015-10-08 | Improvement structure suitable for loader torque converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205013633U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669433A (en) * | 2021-08-11 | 2021-11-19 | 安徽星瑞齿轮传动有限公司 | Large-torque speed reducer assembly of pure electric passenger car |
-
2015
- 2015-10-08 CN CN201520773505.1U patent/CN205013633U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669433A (en) * | 2021-08-11 | 2021-11-19 | 安徽星瑞齿轮传动有限公司 | Large-torque speed reducer assembly of pure electric passenger car |
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