CN215903435U - Quick detachable formula round pin axle of wind-powered electricity generation gear box - Google Patents
Quick detachable formula round pin axle of wind-powered electricity generation gear box Download PDFInfo
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- CN215903435U CN215903435U CN202122452867.9U CN202122452867U CN215903435U CN 215903435 U CN215903435 U CN 215903435U CN 202122452867 U CN202122452867 U CN 202122452867U CN 215903435 U CN215903435 U CN 215903435U
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Abstract
The utility model provides a wind power gear box easily detachable pin shaft, which is characterized in that the pin shaft is arranged in an upper pin shaft hole and a lower pin shaft hole of a planet carrier, a planet wheel bearing is sleeved outside the pin shaft, and a planet wheel is sleeved outside the planet wheel bearing; the method is characterized in that: the pin shaft is provided with an upper pressure relief oil hole for connecting the upper end surface of the pin shaft with the upper pin shaft hole, the pin shaft is also provided with a lower pressure relief oil hole for connecting the lower end surface of the pin shaft with the lower pin shaft hole, and the upper pressure relief oil hole and the lower pressure relief oil hole are connected with a hydraulic oil pump; the upper end face of the pin shaft is provided with an axial screw hole at the axis position, and the lower end of a tool screw is screwed in the axial screw hole; two jacks symmetrically arranged relative to the axis of the pin shaft are placed on the planet carrier; the upper ends of the two jacks are propped against the lower surface of the tool pressing plate; after the tool screw penetrates through the through hole formed in the tool pressing plate, a fastening nut is arranged on the upper portion of the tool screw in a threaded mode and tightly pressed on the upper surface of the tool pressing plate. The utility model provides a structure capable of detaching a pin shaft from a planet carrier of a wind power gear box more easily and safely.
Description
Technical Field
The utility model relates to the field of tools, in particular to a tool structure for maintaining a planet carrier of a wind power gear box.
Background
Wind power generation has been developed rapidly in recent years due to its advantages of no pollution, low construction cost, and the like. As the number increases, the number of wind power gearboxes that need to be serviced also increases dramatically.
In the process of disassembling the wind power gear box and maintaining, when the pin shaft is disassembled from the planet carrier, because the pin shaft and the pin shaft hole of the planet carrier are in interference fit, the pin shaft and the pin shaft hole are often damaged due to strain and the like in the disassembling process, and the pin shaft cannot be normally disassembled from the planet carrier due to the conditions that the design interference magnitude is large, the processing precision is poor, the parts of the gear box in the operation process are deformed due to failure and the like. This patent is a quick detachable formula round pin axle, has effectively avoided above condition.
SUMMERY OF THE UTILITY MODEL
The utility model provides a quick detachable pin shaft of a wind power gear box, which aims to solve the defects of the prior art and provide a structure capable of detaching the pin shaft from a planet carrier of the wind power gear box more easily and safely.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
a wind power gear box is easy to disassemble and comprises a pin shaft, a planetary wheel bearing, a planetary wheel, a planetary gear and a planetary gear shaft, wherein the pin shaft is arranged in an upper pin shaft hole and a lower pin shaft hole of a planetary frame;
the method is characterized in that:
the pin shaft is provided with an upper pressure relief oil hole for connecting the upper end surface of the pin shaft with the upper pin shaft hole, the pin shaft is also provided with a lower pressure relief oil hole for connecting the lower end surface of the pin shaft with the lower pin shaft hole, and the upper pressure relief oil hole and the lower pressure relief oil hole are connected with a hydraulic oil pump;
the upper end face of the pin shaft is provided with an axial screw hole at the axis position, and the lower end of a tool screw is screwed in the axial screw hole;
two jacks symmetrically arranged relative to the axis of the pin shaft are placed on the planet carrier;
the upper ends of the two jacks are propped against the lower surface of the tool pressing plate;
after the tool screw penetrates through the through hole formed in the tool pressing plate, a fastening nut is arranged on the upper portion of the tool screw in a threaded mode and tightly pressed on the upper surface of the tool pressing plate.
The upper pressure relief oil hole consists of an upper vertical pressure relief oil hole and an upper transverse pressure relief oil hole which are perpendicular to each other and communicated with each other;
the upper vertical pressure relief oil hole extends from the upper end surface of the pin shaft to the inside of the pin shaft in the axial direction; the upper transverse pressure relief oil hole extends from the side surface of the pin shaft to the inside of the pin shaft in the radial direction; the upper transverse pressure relief oil hole is arranged at the outlet of the side surface of the pin shaft and at the position of the joint surface of the side surface of the pin shaft and the upper pin shaft hole.
The lower pressure relief oil hole consists of a lower vertical pressure relief oil hole and a lower transverse pressure relief oil hole which are perpendicular to each other and communicated with each other;
the lower vertical pressure relief oil hole extends axially from the lower end surface of the pin shaft to the inside of the pin shaft; the lower transverse pressure relief oil hole extends from the side surface of the pin shaft to the inside of the pin shaft in the radial direction; the lower transverse pressure relief oil hole is arranged at the outlet of the side surface of the pin shaft and at the position of the joint surface of the side surface of the pin shaft and the lower pin shaft hole.
The utility model has the advantages that:
according to the utility model, the pin shaft and the pin shaft hole are decompressed by hydraulic oil through the decompression hole, the bonding strength of the pin shaft and the pin shaft hole is reduced, and then the jack structure is used for axially stretching, so that the pin shaft is more easily detached from the pin shaft hole of the planet carrier in the process of disassembling and maintaining the wind power gear box, and the condition that the pin shaft cannot be normally detached is avoided.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of the structure of the present invention.
Detailed Description
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other embodiments can be obtained according to the drawings without inventive labor. In order to facilitate an understanding of the utility model, the utility model is described in more detail below with reference to the accompanying drawings and specific examples.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. As used in this specification, the terms "upper," "lower," "inner," "outer," "bottom," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the utility model and simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1:
the pin shaft 2 is arranged in an upper pin shaft hole 11 and a lower pin shaft hole 12 of the planet carrier 1, the planet wheel bearing 3 is sleeved outside the pin shaft 2, and the planet wheel 4 is sleeved outside the planet wheel bearing 3.
The upper end of the pin shaft 2 is provided with an upper pressure relief oil hole 21, and the upper pressure relief oil hole 21 is composed of an upper vertical pressure relief oil hole 211 and an upper horizontal pressure relief oil hole 212 which are perpendicular to each other and communicated with each other.
The upper vertical pressure relief oil hole 211 extends from the position of an outlet a on the upper end surface of the pin shaft 2 to the inside of the pin shaft 2 in the axial direction.
The upper transverse pressure relief oil hole 212 extends from the side surface of the pin shaft 2 to the inside of the pin shaft 2 in the radial direction, and an outlet of the upper transverse pressure relief oil hole 212 on the side surface of the pin shaft 2 is at the joint surface position of the side surface of the pin shaft 2 and the upper pin shaft hole 11.
The lower end of the pin shaft 2 is provided with a lower pressure relief oil hole 22, and the lower pressure relief oil hole 22 is composed of a lower vertical pressure relief oil hole 221 and a lower horizontal pressure relief oil hole 222 which are perpendicular to each other and communicated with each other.
The lower vertical pressure relief oil hole 221 extends axially into the pin 2 from the position of an outlet B on the lower end surface of the pin 2.
The lower transverse pressure relief oil hole 222 extends from the side surface of the pin shaft 2 to the inside of the pin shaft 2 in the radial direction, and the outlet of the lower transverse pressure relief oil hole 222 on the side surface of the pin shaft 2 is at the joint surface position of the side surface of the pin shaft 2 and the lower pin shaft hole 12.
The upper vertical pressure relief oil hole 211 is connected with a hydraulic oil pump (not shown) at the outlet a of the upper end surface of the pin shaft 2.
The lower vertical pressure relief oil hole 221 is connected to a hydraulic oil pump (not shown) at an outlet B of the lower end surface of the pin shaft 2.
The upper end face of the pin shaft 2 is provided with an axial screw hole 20 at the axis position, and the lower end of a tooling screw 8 is screwed in the axial screw hole 20.
Two jacks 5 arranged symmetrically with respect to the axis of the pin 2 are placed on the planet carrier 1.
The upper ends of the two jacks 5 are propped against the lower surface of a tool pressing plate 6.
After the tool screw 8 passes through the through hole 60 arranged on the tool pressing plate 6, the two fastening nuts 7 are screwed on the upper part of the tool screw 8 and tightly pressed on the upper surface of the tool pressing plate 6, so that the tool pressing plate 6 is tightly pressed on the upper end of the jack 5.
When the pin shaft 2 is actually disassembled:
1. installing a tool screw 8 on the pin shaft 2, symmetrically placing 1 jack 5 on each of two sides of the axial screw hole 20 relative to the axis of the pin shaft 2, sleeving a tool pressing plate 6 into the tool screw 8, installing the tool pressing plate to a proper position, and screwing a fastening nut 7 for fixation;
2. 1 hydraulic oil pump is respectively connected to the A position and the B position on the pin shaft 2;
3. simultaneously, a hydraulic oil pump is started, hydraulic oil enters the upper pin shaft hole 11 from the position A through the upper pressure relief oil hole 21 to be decompressed, hydraulic oil enters the lower pin shaft hole 12 from the position B through the lower pressure relief oil hole 22 to be decompressed, a travelling crane is used for directly lifting the tool screw 8, and whether the pin shaft 2 can be directly dismounted is tried;
4. if the pin shaft 2 cannot be directly lifted, adjusting jacks 5 on two sides of the axial screw hole 20, jacking a tool pressing plate 6, driving a tool screw 8 to move upwards by the tool pressing plate 6, and pulling out the pin shaft 2;
5. and hoisting the tool pressing plate 6, and safely hoisting the tool pressing plate together with the tool screw 8 and the pin shaft 2.
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. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (3)
1. A wind power gear box is easy to disassemble and comprises a pin shaft, a planetary wheel bearing, a planetary wheel, a planetary gear and a planetary gear shaft, wherein the pin shaft is arranged in an upper pin shaft hole and a lower pin shaft hole of a planetary frame; the method is characterized in that: the pin shaft is provided with an upper pressure relief oil hole for connecting the upper end surface of the pin shaft with the upper pin shaft hole, the pin shaft is also provided with a lower pressure relief oil hole for connecting the lower end surface of the pin shaft with the lower pin shaft hole, and the upper pressure relief oil hole and the lower pressure relief oil hole are connected with a hydraulic oil pump; the upper end face of the pin shaft is provided with an axial screw hole at the axis position, and the lower end of a tool screw is screwed in the axial screw hole; two jacks symmetrically arranged relative to the axis of the pin shaft are placed on the planet carrier; the upper ends of the two jacks are propped against the lower surface of the tool pressing plate; after the tool screw penetrates through the through hole formed in the tool pressing plate, a fastening nut is arranged on the upper portion of the tool screw in a threaded mode and tightly pressed on the upper surface of the tool pressing plate.
2. The wind power gearbox quick detachable pin shaft as claimed in claim 1, wherein: the upper pressure relief oil hole consists of an upper vertical pressure relief oil hole and an upper transverse pressure relief oil hole which are perpendicular to each other and communicated with each other; the upper vertical pressure relief oil hole extends from the upper end surface of the pin shaft to the inside of the pin shaft in the axial direction; the upper transverse pressure relief oil hole extends from the side surface of the pin shaft to the inside of the pin shaft in the radial direction; the upper transverse pressure relief oil hole is arranged at the outlet of the side surface of the pin shaft and at the position of the joint surface of the side surface of the pin shaft and the upper pin shaft hole.
3. The wind power gearbox quick detachable pin shaft as claimed in claim 1, wherein: the lower pressure relief oil hole consists of a lower vertical pressure relief oil hole and a lower transverse pressure relief oil hole which are perpendicular to each other and communicated with each other; the lower vertical pressure relief oil hole extends axially from the lower end surface of the pin shaft to the inside of the pin shaft; the lower transverse pressure relief oil hole extends from the side surface of the pin shaft to the inside of the pin shaft in the radial direction; the lower transverse pressure relief oil hole is arranged at the outlet of the side surface of the pin shaft and at the position of the joint surface of the side surface of the pin shaft and the lower pin shaft hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122452867.9U CN215903435U (en) | 2021-10-12 | 2021-10-12 | Quick detachable formula round pin axle of wind-powered electricity generation gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122452867.9U CN215903435U (en) | 2021-10-12 | 2021-10-12 | Quick detachable formula round pin axle of wind-powered electricity generation gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215903435U true CN215903435U (en) | 2022-02-25 |
Family
ID=80312108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122452867.9U Active CN215903435U (en) | 2021-10-12 | 2021-10-12 | Quick detachable formula round pin axle of wind-powered electricity generation gear box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215903435U (en) |
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2021
- 2021-10-12 CN CN202122452867.9U patent/CN215903435U/en active Active
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