CN217130279U - Yaw gear box input - Google Patents
Yaw gear box input Download PDFInfo
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- CN217130279U CN217130279U CN202123432451.7U CN202123432451U CN217130279U CN 217130279 U CN217130279 U CN 217130279U CN 202123432451 U CN202123432451 U CN 202123432451U CN 217130279 U CN217130279 U CN 217130279U
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- transmission sleeve
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- box body
- input box
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Abstract
The utility model discloses an input end of a yaw gearbox, which comprises an input box body, a transmission sleeve, a ventilation cap and an oil filling screw plug, wherein the ventilation cap is arranged at the upper end of the input box body, and the oil filling screw plug is arranged at the lower end of the input box body; the upper end of the transmission sleeve is connected with a motor shaft key, and the lower end of the transmission sleeve is connected with a primary sun gear of the planetary gear mechanism so as to transmit the torque of the motor shaft to the planetary gear mechanism; the transmission sleeve is arranged in an inner cavity of the input box body, the top of the inner cavity of the input box body is provided with a positioning step, and the positioning step is used for preventing the transmission sleeve from axially moving and detecting and controlling the axial total gap of the input end. The transmission sleeve and the input box body do not have a connection relation, so that original bearing accessories such as a bearing, an oil seal and a snap spring are saved, assembly parts are reduced, the assembly flow is simplified, the integral height of the input end is reduced, and the production cost is saved.
Description
Technical Field
The utility model relates to a driftage gear box technical field, more specifically say, relate to a driftage gear box input.
Background
The yaw gear box is used as a speed reducer, is an important component of the wind generating set and mainly comprises an input end, a multi-stage planetary gear structure and an output end.
Referring to fig. 1, in an input end of a conventional yaw gearbox, an input box 1 is provided with a mounting hole for mounting an input shaft 02, an upper end of the input shaft 02 is in flat key connection with a motor shaft, a lower end of the input shaft 02 is in interference connection with a first-stage sun gear 01, and a bearing 03, an oil seal 04 and a snap spring 05 for axially limiting the bearing 03 are assembled on an outer peripheral portion of the input shaft 02.
Because the bearing 03 of the input shaft 02 needs to be lubricated, the oiling position of the input end is higher, the height of the input box body 1 needs to be increased in order to ensure the expansion space of lubricating oil, the utilization rate of the expansion space is low, and the material and processing cost is increased.
Meanwhile, because the input shaft 02 is installed in the installation hole of the input box body 1, the total axial clearance accumulation of the input end is equal to the clearance between the first-level sun gear 01 and the first-level supporting plate, but the clearance between the first-level sun gear 01 and the first-level supporting plate is difficult to measure and is difficult to detect and control in the assembling process.
In summary, how to reduce the production cost of the input end of the yaw gearbox and simplify the assembly process is a problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a driftage gear box input has saved annexes such as bearing and oil blanket, jump ring between input box and the driving sleeve, has reduced the assembly part, has simplified the assembly flow to reduce the whole height of input, reduced manufacturing cost.
In order to achieve the above object, the present invention provides the following technical solutions:
the input end of the yaw gearbox comprises an input box body, a transmission sleeve, a ventilation cap and an oil filling screw plug, wherein the ventilation cap is arranged at the upper end of the input box body, and the oil filling screw plug is arranged at the lower end of the input box body;
the upper end of the transmission sleeve is in key connection with a motor shaft, and the lower end of the transmission sleeve is in connection with a primary sun gear of a planetary gear mechanism so as to transmit the torque of the motor shaft to the planetary gear mechanism;
the transmission sleeve is arranged in an inner cavity of the input box body, a positioning step is arranged at the top of the inner cavity of the input box body and used for preventing the transmission sleeve from axially moving and detecting and controlling the axial total gap of the input end.
Preferably, the upper end of the transmission sleeve is connected with the motor shaft spline.
Preferably, the lower end of the transmission sleeve is connected with the primary sun gear.
Preferably, a motor shaft mounting hole for mounting the motor shaft and a sun gear mounting hole for mounting the primary sun gear are formed in the transmission sleeve, and a transition step hole is formed between the motor shaft mounting hole and the sun gear mounting hole.
Preferably, the outer diameter of the upper end of the driving sleeve is larger than the outer diameter of the lower end of the driving sleeve.
When the input end of the yaw gearbox is assembled, the primary sun gear of the planetary gear mechanism is axially positioned by the primary wear pad, and the lower end of the transmission sleeve is connected with the primary sun gear, so that the lower end surface of the transmission sleeve is axially positioned; the upper end of the transmission sleeve is connected with the motor shaft, the transmission sleeve is arranged in the inner cavity of the input box body, the axis of the motor shaft is aligned with the axis of the motor shaft mounting hole of the input box body, the positioning step face is opposite to the upper end face of the transmission sleeve, the gap between the positioning step face and the upper end face of the transmission sleeve is the axial total gap of the input end, the axial total gap is convenient to observe, and the axial total gap can be controlled in the assembling process.
The utility model provides an in the driftage gear box input, the transmission cover only is arranged in the inner chamber of input box, with input box and do not exist the relation of connection to saved original bearing and bearing annex such as oil blanket, jump ring, reduced the assembly part, be favorable to reducing the whole height of input, save manufacturing cost.
Simultaneously, save the bearing after, refuel the position and need not to exceed the bearing terminal surface again, the reduction of refueling the position makes the expansion space increase, and then has reduced the height of input box, and can save the oil pointer that is used for observing the lubricated condition of bearing, further reduced the manufacturing cost of input.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic view of a prior art yaw gearbox input;
fig. 2 is a schematic structural diagram of an embodiment of an input end of a yaw gearbox according to the present invention.
In fig. 1-2:
01 is a primary sun wheel, 02 is an input shaft, 03 is a bearing, 04 is an oil seal, 05 is a snap spring, 06 is a ventilation cap and an oil filling component, 07 is an oil pointer, 1 is an input box body, 2 is a transmission sleeve, 3 is a ventilation cap, 4 is an oil filling screw plug, and h is an axial total clearance.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The core of the utility model is to provide a driftage gear box input has saved annexes such as bearing and oil blanket, jump ring between input box and the transmission sleeve, has reduced the assembly part, has simplified the assembly flow to reduce the whole height of input, reduced manufacturing cost.
Referring to fig. 2, fig. 2 is a schematic structural diagram of an embodiment of an input end of a yaw gearbox according to the present invention.
The utility model provides an input end of a yaw gearbox, which comprises an input box body 1, a transmission sleeve 2, a ventilation cap 3 and an oil filling screw plug 4, wherein the ventilation cap 3 is arranged at the upper end of the input box body 1, and the oil filling screw plug 4 is arranged at the lower end of the input box body 1; the upper end of the transmission sleeve 2 is connected with a motor shaft key, and the lower end of the transmission sleeve 2 is connected with a primary sun gear 01 of the planetary gear mechanism so as to transmit the torque of the motor shaft to the planetary gear mechanism; the transmission sleeve 2 is arranged in the inner cavity of the input box body 1, the top of the inner cavity of the input box body 1 is provided with a positioning step, and the positioning step is used for preventing the transmission sleeve 2 from axially moving and detecting and controlling the axial total gap h of the input end.
Referring to fig. 1, the transmission sleeve 2 is disposed in the inner cavity of the input box 1, a mounting hole for mounting the transmission sleeve 2 is no longer disposed in the input box 1, and bearing accessories such as a bearing 03, an oil seal 04, and a snap spring 05 between the mounting hole and the transmission sleeve 2 are eliminated, so that the structure of the input box 1 is greatly simplified, and casting and subsequent machining processes of the input box 1 are facilitated.
One end and the motor shaft of driving sleeve 2 are connected, and the other end is connected with planetary gear mechanism's one-level sun gear 01, and is preferred, and in order to make things convenient for the assembly, be equipped with the motor shaft mounting hole that is used for installing the motor shaft in the driving sleeve 2 and be used for installing the sun gear mounting hole of one-level sun gear 01, be equipped with transition step hole between motor shaft mounting hole and the sun gear installation.
The setting in transition step hole can avoid motor shaft and one-level sun gear 01 to take place to interfere in assembly and motion process on the one hand, and on the other hand still is the sufficient installation space that motor shaft and one-level sun gear 01 provided, the dismouting of being convenient for.
The specific size of the transition step hole is determined according to factors such as the design strength requirement of the transmission sleeve 2 in actual production, and the like, and is not described in detail herein.
Considering that the diameter of the primary sun gear 01 is generally smaller than that of the motor shaft, it is preferable that the outer diameter of the upper end of the driving sleeve 2 is set larger than that of the lower end of the driving sleeve 2 to reduce the weight of the driving sleeve 2.
During assembly, the primary sun gear 01 of the planetary gear mechanism is axially positioned by the primary wear pad and is connected with the lower end of the transmission sleeve 2 and the primary sun gear 01, so that the lower end surface of the transmission sleeve 2 is axially positioned; the upper end of the transmission sleeve 2 is connected with the motor shaft, the transmission sleeve 2 is installed in the inner cavity of the input box body 1, the axis of the motor shaft is aligned with the axis of the motor shaft installation hole of the input box body 1, the positioning step face faces the upper end face of the transmission sleeve 2 at the moment, the gap between the positioning step face and the upper end face of the transmission sleeve 2 is the axial total gap h of the input end, the axial total gap h is convenient to observe, and the axial total gap h is favorably controlled in the assembling process.
In this embodiment, the transmission sleeve 2 is only located in the inner cavity of the input box 1, and is not connected with the input box 1, so that original bearing accessories such as a bearing 03, an oil seal 04 and a clamp spring 05 are saved, assembly parts are reduced, the overall height of the input end is reduced, and the production cost is saved.
Simultaneously, save bearing 03 back, refuel the position and need not to exceed bearing 03 terminal surface again, the reduction of refueling the position makes the expansion space increase, and then has reduced the height of input box 1, and can save the oil pointer 07 that is used for observing the lubricated condition of bearing 03, further reduced the manufacturing cost of input.
In addition, the ventilation cap 3 and the oil filling screw plug 4 are not required to be integrally arranged into the ventilation cap and the oil filling assembly 06, the structure of parts is simple, and the production cost is lower.
The specific kind, structure, size, position and connection mode of the vent cap 3 and the oil filling screw plug 4 are determined according to the requirements in actual production by referring to the prior art, and are not described in detail herein.
On the basis of the above embodiment, the upper end of the transmission sleeve 2 can be connected with the motor shaft spline, and compared with the flat key connection, the spline connection is short in connection length and high in connection rigidity, so that the overall height of the input end can be further shortened.
The shape and size of the spline are determined according to the size of the transmission sleeve 2 and the motor shaft in actual production, the design connection strength requirement and other factors, and are not described in detail herein.
On the basis of the embodiment, the lower end of the transmission sleeve 2 can be in tooth connection with the first-stage sun gear 01, and compared with interference fit, the transmission sleeve 2 and the first-stage sun gear 01 are higher in connection rigidity, and torque transmission between the transmission sleeve 2 and the first-stage sun gear 01 is facilitated.
The internal teeth are arranged in the sun gear mounting hole of the transmission sleeve 2, the external teeth matched with the internal teeth are arranged on the circumferential part of the upper end of the primary sun gear 01, the specific tooth shapes and sizes of the internal teeth and the external teeth are determined according to factors such as the size and design connection rigidity requirement of the primary sun gear 01 in actual production, and the details are not repeated.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It is right above the utility model provides a yaw gear box input has carried out the detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (5)
1. The input end of the yaw gearbox is characterized by comprising an input box body (1), a transmission sleeve (2), a ventilation cap (3) and an oil filling screw plug (4), wherein the ventilation cap (3) is arranged at the upper end of the input box body (1), and the oil filling screw plug (4) is arranged at the lower end of the input box body (1);
the upper end of the transmission sleeve (2) is connected with a motor shaft key, and the lower end of the transmission sleeve (2) is connected with a primary sun gear (01) of a planetary gear mechanism so as to transmit the torque of the motor shaft to the planetary gear mechanism;
the transmission sleeve (2) is installed in the inner cavity of the input box body (1), a positioning step is arranged at the top of the inner cavity of the input box body (1), and the positioning step is used for preventing the transmission sleeve (2) from axially moving and detecting and controlling the axial total gap (h) of the input end.
2. A yaw gearbox input according to claim 1, characterized in that the upper end of the drive sleeve (2) is splined to the motor shaft.
3. A yaw gearbox input according to claim 1, characterized in that the lower end of the driving sleeve (2) is in toothed connection with the primary sun gear (01).
4. A yaw gearbox input end according to any one of claims 1-3, characterized in that a motor shaft mounting hole for mounting a motor shaft and a sun gear mounting hole for mounting the primary sun gear (01) are arranged in the transmission sleeve (2), and a transition step hole is arranged between the motor shaft mounting hole and the sun gear mounting.
5. A yaw gearbox input according to claim 4, characterized in that the outer diameter of the upper end of the drive sleeve (2) is larger than the outer diameter of the lower end of the drive sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123432451.7U CN217130279U (en) | 2021-12-30 | 2021-12-30 | Yaw gear box input |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123432451.7U CN217130279U (en) | 2021-12-30 | 2021-12-30 | Yaw gear box input |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217130279U true CN217130279U (en) | 2022-08-05 |
Family
ID=82619233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123432451.7U Active CN217130279U (en) | 2021-12-30 | 2021-12-30 | Yaw gear box input |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217130279U (en) |
-
2021
- 2021-12-30 CN CN202123432451.7U patent/CN217130279U/en active Active
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