CN214063748U - Planet carrier and gear box - Google Patents

Planet carrier and gear box Download PDF

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Publication number
CN214063748U
CN214063748U CN202022971379.4U CN202022971379U CN214063748U CN 214063748 U CN214063748 U CN 214063748U CN 202022971379 U CN202022971379 U CN 202022971379U CN 214063748 U CN214063748 U CN 214063748U
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China
Prior art keywords
web
planet carrier
hole
pin shaft
bolt
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CN202022971379.4U
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Chinese (zh)
Inventor
赵雅文
苏景鹤
孙中奎
何爱民
孙义忠
陈荣俊
王佳艳
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Nanjing High Speed Gear Manufacturing Co Ltd
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Nanjing High Speed Gear Manufacturing Co Ltd
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Abstract

The utility model relates to a gear box technical field discloses a planet carrier and gear box, and wherein the planet carrier includes: the first amplitude plate is provided with a first pin shaft hole; the second web is arranged opposite to the first web, a second pin shaft hole is formed in the second web, the second pin shaft hole and the first pin shaft hole are coaxially arranged, and two ends of a pin shaft provided with a planet wheel are respectively inserted into the first pin shaft hole and the second pin shaft hole; the stand is located between first web and the second web, and the one end of stand is connected on first web, and the other end detachably of stand is connected on the second web. Through the structure, the planet carrier is low in manufacturing difficulty and convenient for dismounting the internal gear.

Description

Planet carrier and gear box
Technical Field
The utility model relates to a gear box technical field especially relates to a planet carrier and gear box.
Background
In a wind generating set, because the rotating speed of a wind wheel is very low and can not reach the rotating speed required by the power generation of a generator, the generator needs to obtain the corresponding rotating speed through the acceleration of a wind power gear box, and the wind power gear box plays a vital role in wind power equipment as an important core component.
In order to meet the requirement of large transmission ratio of a wind power gear box, the wind power gear box is generally a planetary gear box, and the application of a multi-stage planetary gear structure in the wind power gear box is more common. However, this structure generally has the following major problems: 1. in order to improve the strength and rigidity of the planet carrier, the upright columns of the planet carrier are continuously increased, and as shown in fig. 1, when the minimum distance L1 between the outer sides and the minimum distance L2 between the upright columns of the planet carrier are smaller than the maximum tooth crest diameter phi of the gear needing to be installed in the planet carrier, the gear cannot be normally installed in the planet carrier; 2. the planet carrier structure is an integral structure, the structure is complex, and the casting difficulty and the cost are higher.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a planet carrier, this planet carrier not only make the degree of difficulty low, the dismouting of the inside gear of being convenient for moreover.
To achieve the purpose, the utility model adopts the following technical proposal:
a planet carrier, comprising: the first amplitude plate is provided with a first pin shaft hole; the second web is opposite to the first web, a second pin shaft hole is formed in the second web, the second pin shaft hole and the first pin shaft hole are coaxially arranged, and two ends of a pin shaft provided with a planet wheel are respectively inserted into the first pin shaft hole and the second pin shaft hole; the upright post is positioned between the first web and the second web, one end of the upright post is connected to the first web, and the other end of the upright post is detachably connected to the second web.
As a preferable scheme of the planet carrier, the planet carrier further comprises a first connecting bolt, a first bolt hole is formed in one end, close to the second web, of the stand, a second bolt hole is formed in the second web, and the first connecting bolt is connected in the first bolt hole and the second bolt hole in a penetrating mode.
As a preferable scheme of the planet carrier, the planet carrier further comprises a first positioning pin, a first positioning hole is formed in one end, close to the second web, of the stand column, a second positioning hole is formed in the second web, and the first positioning pin penetrates through the first positioning hole and the second positioning hole.
As a preferable scheme of the planet carrier, the upright post and the first web are integrally formed.
As a preferable scheme of the planet carrier, the planet carrier further comprises a second connecting bolt, a third bolt hole is formed in one end, close to the first web, of the stand, a fourth bolt hole is formed in the first web, and the second connecting bolt is connected in the third bolt hole and the fourth bolt hole in a penetrating mode.
As a preferable scheme of the planet carrier, the planet carrier further comprises a third connecting bolt, a connecting portion is arranged on the second web, a fifth bolt hole is formed in the connecting portion, a sixth bolt hole is formed in one end, close to the second web, of the stand column, and the third connecting bolt is connected in the fifth bolt hole and the sixth bolt hole in a penetrating mode.
As a preferable scheme of the planet carrier, the planet carrier further comprises a second positioning pin, a third positioning hole is formed in the end face, close to the upright post, of the connecting portion, a fourth positioning hole is formed in one end, close to the second web, of the upright post, and the second positioning pin penetrates through the third positioning hole and the fourth positioning hole.
Preferably, the planet carrier further comprises a journal connected to the side of the first web remote from the second web, the journal being rotatably connected to the housing of the gearbox.
As a preferable scheme of the planet carrier, a first main shaft connector is arranged in the shaft neck, a second main shaft connector is arranged on the second web, two ends of a main shaft provided with a sun gear are respectively and rotatably inserted into the first main shaft connector and the second main shaft connector, and the sun gear is meshed with the planet gear.
Another object of the utility model is to provide a gear box, this gear box not only make the degree of difficulty and low in manufacturing cost, and inside gear dismantles the convenience moreover, is convenient for follow-up change and maintenance.
To achieve the purpose, the utility model adopts the following technical proposal:
a gearbox comprises a box body and a planet carrier provided by any technical scheme.
The utility model has the advantages that:
the utility model provides a planet carrier, this planet carrier includes the first panel that is equipped with first round pin shaft hole, the second panel that sets up relatively with the first panel and lie in the stand between first panel and the second panel, be equipped with the second round pin shaft hole coaxial with first round pin shaft hole on the second panel, the both ends of the round pin axle of installing the planet wheel are pegged graft respectively in first round pin shaft hole and second round pin shaft hole, one end of stand is connected on the first panel, the other end detachably of stand is connected on the second panel, make this planet carrier divide into two parts and cast respectively, the complexity of the structure of the casting part has been simplified, the degree of difficulty of casting has been reduced; in addition, when the internal gear of the planet carrier is installed, the second amplitude plate can be disassembled firstly, the internal gear is installed well, and then the whole planet carrier is formed on the stand column, so that the internal gear of the planet carrier is convenient to disassemble and assemble.
The utility model also provides a gear box, this gear box include the planet carrier that box and above-mentioned technical scheme provided, and the planet carrier rotates to be connected in the box, because this gear box has adopted the planet carrier that above-mentioned technical scheme provided for the manufacturing degree of difficulty and manufacturing cost of this gear box are lower, and inside gear dismantles the convenience moreover, makes subsequent change and maintenance convenient.
Drawings
FIG. 1 is a schematic size diagram of a prior art carrier and gears inside the carrier;
FIG. 2 is a sectional view of the planet carrier provided in the first embodiment, after being disassembled;
FIG. 3 is a cross-sectional view of the assembled planet carrier provided in accordance with one embodiment;
FIG. 4 is a sectional view of the planet carrier provided in the second embodiment after being disassembled;
fig. 5 is a sectional view of the carrier according to the third embodiment after being disassembled.
In the figure:
1. a first web; 11. a first pin shaft hole; 2. a second web; 21. a second pin shaft hole; 22. a second bolt hole; 23. a second positioning hole; 24. a connecting portion; 241. a fifth bolt hole; 242. a third positioning hole; 25. a second spindle connection port; 3. a column; 31. a first bolt hole; 32. a first positioning hole; 33. a sixth bolt hole; 34. a fourth positioning hole; 4. a first connecting bolt; 5. a journal; 51. a first main shaft connecting port; 6. a third connecting bolt; 100. a planet wheel; 200. a sun gear.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention and the technical effects achieved by the present invention clearer, the following will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical solution of the planetary carrier and the gear box provided by the present invention is further described by the specific embodiments with reference to the accompanying drawings.
Example one
The present embodiment provides a planet carrier, as shown in fig. 2 and fig. 3, the planet carrier includes a first web 1, a second web 2 and a stand column 3, the stand column 3 is located between the first web 1 and the second web 2, one end of the stand column 3 is connected to the first web 1, and the other end of the stand column 3 is detachably connected to the second web 2, so that the planet carrier can be divided into two parts to be cast respectively, the complexity of the structure of the cast part is simplified, the difficulty of casting is reduced, and the manufacturing cost is reduced.
The first web 1 is provided with a first pin shaft hole 11, the second web 2 is arranged opposite to the first web 1, the second web 2 is provided with a second pin shaft hole 21, the second pin shaft hole 21 and the first pin shaft hole 11 are coaxially arranged, and two ends of a pin shaft provided with the planet wheel 100 are respectively inserted into the first pin shaft hole 11 and the second pin shaft hole 21. When installing planet wheel 100, can dismantle second web 2 earlier, then peg graft the one end of round pin axle in first round pin shaft hole 11 after, connect second web 2 on stand 3 again to make the other end of round pin axle peg graft in second round pin shaft hole 21, thereby realize planet wheel 100's convenient dismouting.
In this embodiment, the planet carrier further includes a first connecting bolt 4, a first bolt hole 31 is formed in one end, close to the second web 2, of the column 3, a second bolt hole 22 is formed in the second web 2, the first connecting bolt 4 is connected to the first bolt hole 31 and the second bolt hole 22 in a penetrating manner, the second web 2 is connected to one end, far away from the first web 1, of the column 3, and the second web 2 is locked to the column 3, so that the second web 2 is axially positioned on the column 3. Preferably, the planet carrier further comprises a first positioning pin, the end face, close to the second web 2, of the stand column 3 is provided with a first positioning hole 32, the second web 2 is provided with a second positioning hole 23, and the first positioning pin penetrates through the first positioning hole 32 and the second positioning hole 23 to position the stand column 3 and the second web 2 in the circumferential direction and the radial direction, so that the stand column 3 and the second web 2 can be ensured to rotate synchronously.
Preferably, the upright 3 is made as an integral part of the first web 1, i.e. the upright 3 is made as an integral part of the first web 1. Specifically, the upright column 3 and the first web 1 are manufactured by casting integrally by adopting a casting process; the second web 2 is manufactured by adopting a casting process and is separately cast, so that the connecting strength of the stand column 3 and the first web 1 is high, the bearing capacity of the planet carrier is improved, the whole planet carrier is divided into two parts to be cast respectively, the complexity of the structure of the cast part is simplified, the casting difficulty is reduced, and the manufacturing cost is reduced.
In this embodiment the planet carrier further comprises a journal 5, the journal 5 being connected to the side of the first web 1 remote from the second web 2, the journal 5 being rotatably connected to the gearbox housing such that the planet carrier can be rotatably mounted to the gearbox housing. The journal 5 is integrally formed with the first web 1, i.e. the journal 5 and the first web 1 are formed in one piece. In particular, the journal 5 is made by integral casting with the first web 1, using a casting process.
Preferably, the journal 5 is provided with a first spindle connecting port 51, the first spindle connecting port 51 is a through hole, the second web 2 is provided with a second spindle connecting port 25, the first spindle connecting port 51 is also a through hole, and two ends of the spindle on which the sun gear 200 is mounted are rotatably inserted into the first spindle connecting port 51 and the second spindle connecting port 25, respectively, so that the spindle of the sun gear 200 can rotate relative to the planet carrier. It can be understood that, when the sun gear 200 is installed, the second web 2 is detached first, then one end of the main shaft of the sun gear 200 is inserted into the first main shaft connector 51, so that the sun gear 200 is engaged with the planet gear 100, then the second web 2 is connected to the upright post 3, and the other end of the main shaft is inserted into the second main shaft connector 25, thereby realizing convenient detachment and installation of the sun gear 200. With the above-described structure, even if both the outside minimum distance L1 and the inside minimum distance L2 between the columns 3 are smaller than the maximum tooth tip diameter Φ of the internal gears (the planetary gear 100 and the sun gear 200) that need to be incorporated inside the carrier, the internal gears (the planetary gear 100 and the sun gear 200) can be quickly and easily incorporated into the carrier.
This embodiment still provides a gear box, and this gear box includes the planet carrier that box and above-mentioned technical scheme provided, because this gear box has adopted the planet carrier that above-mentioned technical scheme provided, this gear box not only makes the degree of difficulty and low in manufacturing cost, and inside gear (planet wheel 100 and sun gear 200) easy dismounting is convenient for follow-up change and maintenance moreover.
Example two
The present embodiment is different from the first embodiment in that, as shown in fig. 4, the column 3 and the first web 1 are two members. Specifically, the upright column 3 and the first web 1 are respectively manufactured by casting processes and are respectively and independently cast, that is, the whole planet carrier is divided into three parts to be respectively cast, so that the complexity of the structure of the cast part is simplified, the casting difficulty is favorably reduced, and the manufacturing cost is reduced.
In this embodiment, the planet carrier further includes a second connecting bolt (not shown in the figure), a third bolt hole (not shown in the figure) is formed in the end surface of the upright column 3 close to the first web 1, a fourth bolt hole (not shown in the figure) is formed in the first web 1, the second connecting bolt is connected to the third bolt hole and the fourth bolt hole in a penetrating manner, one end of the upright column 3, which is far away from the second web 2, is connected to the second web 2, and the first web 1 is locked to the upright column 3, so that the first web 1 is axially positioned on the upright column 3. Preferably, the planet carrier further comprises a first positioning pin, the end face, close to the second web 2, of the stand column 3 is provided with a first positioning hole 32, the second web 2 is provided with a second positioning hole 23, and the first positioning pin penetrates through the first positioning hole 32 and the second positioning hole 23 to position the stand column 3 and the second web 2 in the circumferential direction and the radial direction, so that the stand column 3 and the second web 2 can be ensured to rotate synchronously.
Preferably, the planet carrier further includes a third positioning pin (not shown in the figure), a fifth positioning hole (not shown in the figure) is formed in the end face, close to the first web 1, of the stand column 3, a sixth positioning hole (not shown in the figure) is formed in the second web 2, and the third positioning pin is arranged in the fifth positioning hole and the sixth positioning hole in a penetrating manner to circumferentially and radially position the stand column 3 and the first web 1, so that the stand column 3 and the first web 1 can be ensured to synchronously rotate and transmit torque.
It can be understood that, before the planet wheel 100 and the sun wheel 200 are installed, the upright post 3 is connected to the first web 1, the second web 2 is detached, one end of the pin shaft is inserted into the first pin shaft hole 11, one end of the main shaft of the sun wheel 200 is inserted into the first main shaft connecting port 51, the sun wheel 200 is engaged with the planet wheel 100, the second web 2 is connected to the upright post 3, the other end of the pin shaft is inserted into the second pin shaft hole 21, and the other end of the main shaft is inserted into the second main shaft connecting port 25, so that the planet wheel 100 and the sun wheel 200 can be conveniently detached. With the above-described structure, even if both the outside minimum distance L1 and the inside minimum distance L2 between the columns 3 are smaller than the maximum tooth tip diameter Φ of the internal gears (the planetary gear 100 and the sun gear 200) that need to be incorporated inside the carrier, the internal gears (the planetary gear 100 and the sun gear 200) can be quickly and easily incorporated into the carrier.
Similarly, this embodiment still provides a gear box, and this gear box includes the planet carrier that box and this embodiment technical scheme provided, because this gear box adopted the planet carrier that this embodiment technical scheme provided, this gear box not only makes the degree of difficulty and low in manufacturing cost, and internal gear (planet wheel 100 and sun gear 200) easy dismounting is convenient for follow-up change and maintenance moreover.
EXAMPLE III
The present embodiment is different from the first embodiment in that, as shown in fig. 5, the planet carrier does not include the first connecting bolt 4 and the first positioning pin, the first positioning hole 32 is not provided on the upright post 3, the second positioning hole 23 is not provided on the second web 2, but the connecting portion 24 is provided on the second web 2, and one end of the upright post 3 away from the first web 1 is connected to the connecting portion 24.
Specifically, the planet carrier further comprises a third connecting bolt 6, a fifth bolt hole 241 is formed in the connecting portion 24, a sixth bolt hole 33 is formed in the end face, close to the second web 2, of the stand column 3, and the third connecting bolt 6 is connected in the fifth bolt hole 241 and the sixth bolt hole 33 in a penetrating mode and locks the second web 2 on the stand column 3, so that the second web 2 is axially positioned on the stand column 3. Preferably, the planet carrier further includes a second positioning pin, a third positioning hole 242 is formed in the end surface of the connecting portion 24 close to the column 3, a fourth positioning hole 34 is formed in one end of the column 3 close to the second web 2, and the second positioning pin is inserted into the third positioning hole 242 and the fourth positioning hole 34 to circumferentially and radially position the column 3 and the second web 2, so that the column 3 and the second web 2 can be ensured to rotate synchronously. With the above-described structure, even if both the outside minimum distance L1 and the inside minimum distance L2 between the columns 3 are smaller than the maximum tooth tip diameter Φ of the internal gears (the planetary gear 100 and the sun gear 200) that need to be incorporated inside the carrier, the internal gears (the planetary gear 100 and the sun gear 200) can be quickly and easily incorporated into the carrier.
Similarly, this embodiment still provides a gear box, and this gear box includes the planet carrier that box and this embodiment technical scheme provided, because this gear box adopted the planet carrier that this embodiment technical scheme provided, this gear box not only makes the degree of difficulty and low in manufacturing cost, and internal gear (planet wheel 100 and sun gear 200) easy dismounting is convenient for follow-up change and maintenance moreover.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A planet carrier, comprising:
the first web (1), the first web (1) is provided with a first pin shaft hole (11);
the second web (2) is opposite to the first web (1), a second pin shaft hole (21) is formed in the second web (2), the second pin shaft hole (21) is coaxial with the first pin shaft hole (11), and two ends of a pin shaft provided with the planet wheel (100) are respectively inserted into the first pin shaft hole (11) and the second pin shaft hole (21);
the vertical column (3) is located between the first web (1) and the second web (2), one end of the vertical column (3) is connected to the first web (1), and the other end of the vertical column (3) is detachably connected to the second web (2).
2. Planet carrier according to claim 1, further comprising a first connecting bolt (4), wherein a first bolt hole (31) is provided at one end of the upright (3) close to the second web (2), a second bolt hole (22) is provided on the second web (2), and the first connecting bolt (4) is inserted into the first bolt hole (31) and the second bolt hole (22).
3. Planet carrier according to claim 2, further comprising a first positioning pin, wherein the column (3) is provided with a first positioning hole (32) at an end close to the second web (2), and the second web (2) is provided with a second positioning hole (23), and the first positioning pin is inserted into the first positioning hole (32) and the second positioning hole (23).
4. Planet carrier according to claim 2, characterised in that the upright (3) is an integral part of the first web (1).
5. Planet carrier according to claim 2, further comprising a second connecting bolt, wherein a third bolt hole is provided at one end of the upright (3) close to the first web (1), a fourth bolt hole is provided on the first web (1), and the second connecting bolt is inserted into the third bolt hole and the fourth bolt hole.
6. Planet carrier according to claim 1, further comprising a third connecting bolt (6), wherein the second web (2) is provided with a connecting portion (24), the connecting portion (24) is provided with a fifth bolt hole (241), the end of the upright (3) close to the second web (2) is provided with a sixth bolt hole (33), and the third connecting bolt (6) is inserted into the fifth bolt hole (241) and the sixth bolt hole (33).
7. The planet carrier according to claim 6, further comprising a second positioning pin, wherein a third positioning hole (242) is formed in the end surface of the connecting portion (24) close to the upright (3), a fourth positioning hole (34) is formed in the end of the upright (3) close to the second web (2), and the second positioning pin is inserted into the third positioning hole (242) and the fourth positioning hole (34).
8. Planet carrier according to claim 1, characterised in that it further comprises a journal (5), said journal (5) being connected to the side of the first web (1) remote from the second web (2), said journal (5) being rotationally connected to the gearbox casing.
9. Planet carrier according to claim 8, characterised in that a first spindle connection (51) is provided in the journal (5), a second spindle connection (25) is provided on the second web (2), the two ends of the spindle on which the sun wheel (200) is mounted are rotatably plugged into the first spindle connection (51) and the second spindle connection (25), respectively, and the sun wheel (200) meshes with the planet wheels (100).
10. A gearbox comprising a casing and a planet carrier according to any of claims 1-9.
CN202022971379.4U 2020-12-11 2020-12-11 Planet carrier and gear box Active CN214063748U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022971379.4U CN214063748U (en) 2020-12-11 2020-12-11 Planet carrier and gear box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022971379.4U CN214063748U (en) 2020-12-11 2020-12-11 Planet carrier and gear box

Publications (1)

Publication Number Publication Date
CN214063748U true CN214063748U (en) 2021-08-27

Family

ID=77407608

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022971379.4U Active CN214063748U (en) 2020-12-11 2020-12-11 Planet carrier and gear box

Country Status (1)

Country Link
CN (1) CN214063748U (en)

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