Aligning tool

Abstract

The utility model relates to the technical field of integrated gearbox auxiliary tools, and provides an aligning tool which is used for an integrated gearbox and comprises a flange and a supporting piece. The flange comprises a first connecting part and a second connecting part, the second connecting part is located on the peripheral side of the first connecting part, the flange seals a connecting port of the first shell, in the axial direction of the gear ring, the first connecting part is connected with the planet carrier through a first threaded fastener, and the second connecting part is connected with the first shell through a second threaded fastener; a plurality of mounting holes are formed in the second shell in the radial direction of the gear ring, the supporting pieces and the mounting holes are inserted and fixed in a one-to-one correspondence mode, and the supporting pieces can support the planet carrier in the radial direction of the gear ring. Therefore, the flange and the supporting piece can maintain the relative position of the planet carrier and the gear ring, and the situation that when the integrated gearbox is moved or installed, the relative position of the planet carrier and the gear ring is changed, and consequently the coaxiality of the integrated gearbox is reduced is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of integrated gear box auxiliary tooling, in particular to a self-aligning tooling. Background Art

[0002] In recent years, with the advancement of wind power technology and the continuous development of the industrial chain, wind turbines have become larger and larger. In order to reduce costs and improve economic benefits, the transmission chain form with an integrated structure of the main shaft shaft system and the front end of the gearbox has become a trend.

[0003] This integrated gearbox is completely rigidly connected to the main shaft shaft system. Compared with the traditional gearbox, the integrated gearbox has one less box at the front end, the interior of the gearbox is not closed, and the planetary carrier is in a floating state without bearing support. During transportation, the planetary carrier and the ring gear swing relative to each other, and the coaxiality of the two gradually decreases, which makes it difficult to align the planetary carrier and the main shaft after the ring gear and the main shaft seat are positioned during assembly.

[0004] Therefore, a centering tool is urgently needed to solve the above technical problems. Utility Model Content

[0005] The utility model aims to provide a self-aligning tool, which can solve the problem of relative swing between the planet carrier and the gear ring during the transportation and installation of the integrated gear box.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A self-aligning tool is used for an integrated gearbox, wherein the integrated gearbox comprises a planet carrier, a planetary gear, a nylon slip ring, a gear ring and a housing, wherein the planetary gear is rotatably connected to the planet carrier, and the gear ring is meshed with the planetary gear. The housing comprises a first housing and a second housing, wherein the first housing and the second housing are respectively located on both sides of the axial direction of the gear ring and are fixed to the gear ring. The first housing is provided with a connection port in the axial direction of the gear ring, and the nylon slip ring is sandwiched between the planet carrier and the second housing in the radial direction of the gear ring. The self-aligning tool comprises:

[0008] A flange, wherein the flange comprises a first connection portion and a second connection portion, wherein the second connection portion is located at a circumferential side of the first connection portion, the flange closes the connection port, and along the axial direction of the ring gear, the first connection portion is connected to the planet carrier via a first threaded fastener, and the second connection portion is connected to the first housing via a second threaded fastener;

[0009] The support member is provided with a plurality of mounting holes in the radial direction of the gear ring. The support member is plugged and fixed in a one-to-one correspondence with the mounting holes. The support member can support the planet carrier in the radial direction of the gear ring.

[0010] As a preferred technical solution for the above-mentioned self-aligning tooling, a first limit block is protrudingly provided on the end face of the flange facing the planetary carrier. There are multiple first limit blocks, and the multiple first limit blocks are evenly distributed around the axis of the ring gear. The first limit blocks can abut against the planetary carrier along the radial direction of the ring gear.

[0011] As a preferred technical solution for the above-mentioned centering tooling, the above-mentioned flange is convexly provided with a second limit block, and a plurality of the above-mentioned second limit blocks are provided. The plurality of the above-mentioned second limit blocks are located on the outer peripheral side of the above-mentioned first shell and are evenly arranged along the circumference of the above-mentioned first shell, and the inner side wall of the above-mentioned second limit block can abut against the outer peripheral wall of the above-mentioned first shell.

[0012] As a preferred technical solution of the above-mentioned self-aligning tool, the above-mentioned first threaded fastener and / or the above-mentioned second threaded fastener are provided in plurality and are evenly arranged around the axis of the above-mentioned ring gear.

[0013] As a preferred technical solution of the above-mentioned self-aligning tooling, the above-mentioned first threaded fastener includes a first abutment portion and a first threaded portion, the above-mentioned first abutment portion is located on the side of the above-mentioned flange facing away from the above-mentioned planetary carrier and abuts against the above-mentioned flange, and the above-mentioned first threaded portion passes through the above-mentioned first connecting portion and is threadedly connected to the above-mentioned planetary carrier.

[0014] As a preferred technical solution of the above-mentioned self-aligning tooling, the above-mentioned second threaded fastener includes a second abutment portion and a second threaded portion, the above-mentioned second abutment portion is located on the side of the above-mentioned flange facing away from the above-mentioned first shell and abuts against the above-mentioned flange, and the above-mentioned second threaded portion passes through the above-mentioned second connecting portion and is threadedly connected to the above-mentioned first shell.

[0015] As a preferred technical solution of the above-mentioned centering tooling, it also includes a blocking piece, and the above-mentioned blocking piece is fixed in the above-mentioned mounting hole.

[0016] As a preferred technical solution of the above-mentioned centering tool, a sealing ring is sandwiched between the above-mentioned flange and the above-mentioned first shell.

[0017] As a preferred technical solution of the above-mentioned centering tool, one axial end of the above-mentioned support member is fixed in the above-mentioned mounting hole, and the axial end surface of the other end abuts against the circumferential side wall of the above-mentioned planetary carrier.

[0018] As a preferred technical solution of the above-mentioned centering tool, one axial end of the above-mentioned support member is fixed in the above-mentioned mounting hole, and the other end is plugged into the above-mentioned planet carrier.

[0019] Beneficial effects of the utility model:

[0020] The present application provides a self-aligning tool for an integrated gearbox, which includes a planetary carrier, a planetary gear, a nylon slip ring, a gear ring and a housing, wherein the planetary gear is rotatably connected to the planetary carrier, and the gear ring is meshed with the planetary gear. The housing includes a first shell and a second shell, wherein the first shell and the second shell are respectively located on both sides of the axial direction of the gear ring and are fixed to the gear ring. The first shell is provided with a connection port in the axial direction of the gear ring, and a nylon slip ring is sandwiched between the planetary carrier and the second shell in the radial direction of the gear ring. The self-aligning tool includes a flange and a support. The flange includes a first connection part and a second connection part, wherein the second connection part is located on the circumference of the first connection part, and the flange closes the connection port. Along the axial direction of the gear ring, the first connection part is connected to the planetary carrier by a first threaded fastener, and the second connection part is connected to the first shell by a second threaded fastener; the second shell is provided with a plurality of mounting holes along the radial direction of the gear ring, and the support is plugged and fixed to the mounting holes one by one, and the support can support the planetary carrier along the radial direction of the gear ring.

[0021] The flange is fixed to the first housing through the first threaded fastener, and is fixed to the planet carrier through the second threaded fastener. In this way, the flange can not only seal the connection port, but also connect the planet carrier to the first housing through the flange. Since the first housing is fixed to the ring gear, the planet carrier and the ring gear are relatively fixed. On the other side of the ring gear axial direction, the second housing fixes the planet carrier through the support to maintain the relative position of the planet carrier and the ring gear. Therefore, the flange and the support can maintain the relative position of the planet carrier and the ring gear, avoid the relative position of the planet carrier and the ring gear from changing when the integrated gear box moves, and keep the coaxiality preset at the factory.

[0022] Furthermore, when installing the integrated gear box and the main shaft, the flange is removed first, and after the initial connection between the integrated gear box and the main shaft shaft system is completed, the support parts are removed. In this way, during installation, the support parts of the self-aligning tooling can still straighten and support the planetary carrier to avoid radial relative swing between the planetary carrier and the second housing, which may cause squeezing of the planetary gear and the nylon slip ring, misalignment of the planetary gear, or deformation or damage of the nylon slip ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0024] Figure 1 It is a front view of the self-aligning tool and the integrated gear box provided by the embodiment of the utility model in the assembled state;

[0025] Figure 2 yes Figure 1 Sectional view at AA in the middle;

[0026] Figure 3 yes Figure 2 A partial enlarged view of point C in the middle;

[0027] Figure 4 It is a side view of the self-aligning tool and the integrated gear box provided by the embodiment of the utility model in the assembled state;

[0028] Figure 5 yes Figure 4 Sectional view in BB.

[0029] In the figure:

[0030] 11. Planet carrier; 12. Nylon slip ring; 13. Ring gear; 14. Box; 141. First housing; 142. Second housing;

[0031] 20. flange; 21. first connection part; 22. second connection part;

[0032] 31. A first threaded fastener; 32. A second threaded fastener;

[0033] 40. Support member; 50. Sealing member. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0035] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0037] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0038] like Figures 1 to 5 As shown, the present application provides a self-aligning tool for an integrated gearbox, which includes a planetary carrier 11, planetary wheels, a nylon slip ring 12, a ring gear 13 and a housing 14, wherein the planetary wheels are rotatably connected to the planetary carrier 11, and the ring gear 13 is meshed with the planetary wheels. The housing 14 includes a first shell 141 and a second shell 142, which are respectively located on both axial sides of the ring gear 13 and fixed to the ring gear 13, and the first shell 141 is provided with a connecting port in the axial direction of the ring gear 13, and a nylon slip ring 12 is sandwiched between the planetary carrier 11 and the second shell 142 along the radial direction of the ring gear 13, and the self-aligning tool includes a flange 20 and a support 40. Among them, the flange 20 includes a first connecting part 21 and a second connecting part 22, the second connecting part 22 is located on the circumferential side of the first connecting part 21, the flange 20 closes the connection port, and along the axial direction of the ring gear 13, the first connecting part 21 is connected to the planetary carrier 11 through a first threaded fastener 31, and the second connecting part 22 is connected to the first shell 141 through a second threaded fastener 32; the second shell 142 is provided with a plurality of mounting holes along the radial direction of the ring gear 13, and the support member 40 is plugged and fixed to the mounting holes one by one, and the support member 40 can support the planetary carrier 11 along the radial direction of the ring gear 13.

[0039] The flange 20 is fixed to the first housing 141 through the first threaded fastener 31, and is fixed to the planet carrier 11 through the second threaded fastener 32. In this way, the flange 20 can not only block the connection port, but also connect the planet carrier 11 to the first housing 141 through the flange 20. Since the first housing 141 is fixed to the ring gear 13, the planet carrier 11 and the ring gear 13 are relatively fixed; on the other side of the axial direction of the ring gear 13, the second housing 142 fixes the planet carrier 11 through the support member 40 to maintain the relative position of the planet carrier 11 and the ring gear 13. Therefore, the flange 20 and the support member 40 can maintain the relative position of the planet carrier 11 and the ring gear 13, avoid the relative position of the planet carrier 11 and the ring gear 13 from changing when the integrated gear box moves, and keep the coaxiality preset at the factory for the planet carrier 11 and the ring gear 13.

[0040] Furthermore, when the integrated gear box and the main shaft are installed, the flange 20 is first removed, and after the initial connection between the integrated gear box and the main shaft shaft system is completed, the support member 40 is removed. In this way, during installation, the support member 40 of the self-aligning tool can still straighten and support the planetary carrier 11 to avoid radial relative swing between the planetary carrier 11 and the second housing 142, causing squeezing of the planetary gear and the nylon slip ring 12, causing the planetary gear to be misaligned, or causing the nylon slip ring 12 to be deformed or damaged.

[0041] Furthermore, the flange 20 can seal the interior of the gear box when the integrated gear box is being painted.

[0042] Optionally, a first stop block is convexly provided on the end surface of one side of the flange 20 facing the planet carrier 11, and a plurality of first stop blocks are provided, and the plurality of first stop blocks are evenly distributed around the axis of the ring gear 13, and the first stop blocks can abut against the planet carrier 11 along the radial direction of the ring gear 13. In this way, the plurality of first stop blocks enclose a first plug-in slot, and during installation, the flange 20 and the planet carrier 11 can be aligned by correspondingly plugging part of the planet carrier 11 into the first plug-in slot, and after the flange 20 is fixed to the first housing 141, the first stop block can straighten the planet carrier 11, limit the swing of the planet carrier 11 relative to the ring gear 13, and reduce the force on the first threaded fastener 31.

[0043] Preferably, a plurality of first limit blocks are connected to each other along the circumference of the gear ring 13 to form the peripheral side wall of the concave stop, and the planet carrier 11 is provided with a convex stop, which is plugged into the concave stop to assist the flange 20 to align with the planet carrier 11, and further ensure the concentric arrangement of the flange 20 and the planet carrier 11.

[0044] Optionally, the flange 20 is provided with a second stop block, and there are multiple second stop blocks. The multiple second stop blocks are located on the outer peripheral side of the first shell 141 and are evenly arranged along the circumference of the first shell 141. The inner side wall of the second stop block can abut against the outer peripheral wall of the first shell 141. In this way, the multiple second stop blocks enclose a second plug-in slot. During installation, the flange 20 and the first shell 141 can be aligned by correspondingly plugging part of the first shell 141 with the second plug-in slot. After the flange 20 and the first shell 141 are fixed, the second stop block can limit the swing of the flange 20 relative to the first shell 141, reduce the force on the second threaded fastener 32, and the multiple second stop blocks wrapped around the outer peripheral side of part of the first shell 141 can also play a sealing role.

[0045] Preferably, a plurality of second limit blocks are connected to each other along the circumference of the gear ring 13 to form the peripheral side wall of the concave stop, and the first shell 141 is provided with a convex stop, which is plugged into the concave stop to assist the flange 20 to align with the first shell 141, and further ensure the concentric arrangement of the flange 20 and the first shell 141.

[0046] Optionally, a plurality of first threaded fasteners 31 and / or second threaded fasteners 32 are provided and are evenly arranged around the axis of the gear ring 13 .

[0047] Specifically, when multiple first threaded fasteners 31 are provided, the reliability of the connection between the flange 20 and the planet carrier 11 can be enhanced. When the planet carrier 11 tends to swing relative to the ring gear 13, multiple first threaded fasteners 31 are stressed at the same time, reducing the load of each first threaded fastener 31 and extending the service life of the first threaded fastener 31. It also avoids the problem of local force concentration on the flange 20, which causes the flange 20 to deform.

[0048] Specifically, when multiple second threaded fasteners 32 are provided, the connection reliability between the flange 20 and the first housing 141 can be enhanced. When the planet carrier 11 tends to swing relative to the ring gear 13, the planet carrier 11 acts on the flange 20 through the first threaded fasteners 31, so that the flange 20 also has a tendency to move with the planet carrier 11. Multiple second threaded fasteners 32 are simultaneously stressed, reducing the load of each second threaded fastener 32 and extending the service life of the second threaded fasteners 32. The fixing of multiple second threaded fasteners 32 forms multiple fixing points between the flange 20 and the first housing 141, thereby reducing the connection gap and achieving a certain sealing effect.

[0049] Optionally, the first threaded fastener 31 includes a first abutting portion and a first threaded portion, the first abutting portion is located on a side of the flange 20 facing away from the planet carrier 11 and abuts against the flange 20 , and the first threaded portion passes through the first connecting portion 21 and is threadedly connected to the planet carrier 11 .

[0050] Optionally, the second threaded fastener 32 includes a second abutting portion and a second threaded portion, the second abutting portion is located on a side of the flange 20 facing away from the first shell 141 and abuts against the flange 20 , and the second threaded portion passes through the second connecting portion 22 and is threadedly connected to the first shell 141 .

[0051] Preferably, in this embodiment, the first threaded fastener 31 is threadedly fixed to the planet carrier 11 , and the second threaded fastener 32 is threadedly fixed to the first housing 141 .

[0052] In other embodiments, the first threaded fastener 31 is threadedly connected and fixed to the planet carrier 11 , and the second threaded fastener 32 is threadedly connected to the flange 20 and plugged into the first housing 141 .

[0053] In other embodiments, the second threaded fastener 32 is threadedly connected and fixed to the first housing 141 , and the first threaded fastener 31 is threadedly connected to the flange 20 and plugged into the planet carrier 11 .

[0054] Since some oil is stored in the integrated gear box, the oil is easy to leak from the connection gap between the mounting hole and the support member 40 when the integrated gear box is transported. Therefore, in this embodiment, the centering tool further includes a plugging member 50, which is fixed in the mounting hole. The mounting hole is blocked by the plugging member 50 to prevent oil leakage.

[0055] Specifically, when carrying the integrated gear box, a support member 40 and a sealing member 50 are fixed in the mounting hole. The sealing member 50 is located on the side of the support member 40 facing away from the planetary carrier 11. When the integrated gear box and the main shaft system are installed, the sealing member 50 is first withdrawn from the mounting hole, and after the support member 40 is withdrawn from the mounting hole, the sealing member 50 is re-fixed in the mounting hole for sealing.

[0056] Optionally, a sealing ring is sandwiched between the flange 20 and the first housing 141. In this way, the sealing ring seals the connection gap between the flange 20 and the first housing 141 to prevent oil leakage in the integrated gearbox and prevent impurities outside the housing 14 from entering the housing 14.

[0057] Optionally, one axial end of the support member 40 is fixed in the mounting hole, and the axial end surface of the other end abuts against the peripheral side wall of the planet carrier 11. In this way, the installation of the support member 40 is facilitated, and the support member 40 only needs to pass through the mounting hole and abut against the planet carrier 11.

[0058] Furthermore, a buffer pad is installed at the end of the support member 40 to form a soft contact with the planet carrier 11 to prevent the support member 40 from forming scratches or abutting depressions on the peripheral side wall of the planet carrier 11.

[0059] In other embodiments, one axial end of the support member 40 is fixed in the mounting hole, and the other end is plugged into the planet carrier 11. In this way, the support member 40 can not only limit the radial swing of the planet carrier 11 relative to the ring gear 13, but also limit the relative rotation of the planet carrier 11 relative to the ring gear 13 around the axis of the ring gear 13.

[0060] Before installing the integrated gearbox and the main shaft, the flange 20 needs to be removed first. After the initial connection between the integrated gearbox and the main shaft system is completed, the sealing member 50 is taken out, the support member 40 is removed, and then the sealing member 50 is fixed in the installation hole.

[0061] In addition, the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A self-aligning tool for an integrated gearbox, the integrated gearbox comprising a planet carrier (11), planetary wheels, a nylon slip ring (12), a gear ring (13) and a housing (14), the planetary wheels being rotatably connected to the planet carrier (11), the gear ring (13) being meshed with the planetary wheels, the housing (14) comprising a first housing (141) and a second housing (142), the first housing (141) and the second housing (142) being respectively located on both axial sides of the gear ring (13) and being fixed to the gear ring (13), the first housing (141) being provided with a connection port in the axial direction of the gear ring (13), the nylon slip ring (12) being sandwiched between the planet carrier (11) and the second housing (142) in the radial direction of the gear ring (13), characterized in that: The centering tooling comprises: A flange (20), the flange (20) comprising a first connection portion (21) and a second connection portion (22), the second connection portion (22) being located on the circumferential side of the first connection portion (21), the flange (20) closing the connection port, and along the axial direction of the ring gear (13), the first connection portion (21) is connected to the planet carrier (11) via a first threaded fastener (31), and the second connection portion (22) is connected to the first housing (141) via a second threaded fastener (32); A support member (40), wherein the second housing (142) is provided with a plurality of mounting holes along the radial direction of the gear ring (13), the support member (40) is plugged and fixed in a one-to-one correspondence with the mounting holes, and the support member (40) is capable of supporting the planet carrier (11) along the radial direction of the gear ring (13).

2. The centering tool according to claim 1, characterized in that: A first limit block is protruding from an end surface of one side of the flange (20) facing the planetary carrier (11), and a plurality of the first limit blocks are provided. The plurality of the first limit blocks are evenly distributed around the axis of the ring gear (13), and the first limit blocks can abut against the planetary carrier (11) along the radial direction of the ring gear (13).

3. The centering tool according to claim 1, characterized in that: The flange (20) is provided with a protruding second limit block, and a plurality of the second limit blocks are provided. The plurality of second limit blocks are located on the outer peripheral side of the first shell (141) and are evenly arranged along the circumference of the first shell (141), and the inner side wall of the second limit block can abut against the outer peripheral wall of the first shell (141).

4. The centering tool according to claim 1, characterized in that: The first threaded fastener (31) and / or the second threaded fastener (32) are provided in plurality and are evenly arranged around the axis of the gear ring (13).

5. The centering tool according to claim 1, characterized in that: The first threaded fastener (31) comprises a first abutment portion and a first threaded portion, the first abutment portion being located on a side of the flange (20) facing away from the planet carrier (11) and abutting against the flange (20), and the first threaded portion passing through the first connection portion (21) and being threadedly connected to the planet carrier (11).

6. The centering tool according to claim 1, characterized in that: The second threaded fastener (32) comprises a second abutment portion and a second threaded portion, the second abutment portion is located on a side of the flange (20) facing away from the first shell (141) and abuts against the flange (20), and the second threaded portion passes through the second connection portion (22) and is threadedly connected to the first shell (141).

7. The centering tool according to claim 1, characterized in that: It also includes a blocking piece (50), wherein the blocking piece (50) is fixed in the mounting hole.

8. The centering tool according to claim 1, characterized in that: A sealing ring is sandwiched between the flange (20) and the first shell (141).

9. The centering tool according to any one of claims 1 to 8, characterized in that: One axial end of the support member (40) is fixed in the mounting hole, and the axial end surface of the other end abuts against the peripheral side wall of the planet carrier (11).

10. The centering tool according to any one of claims 1 to 8, characterized in that: One axial end of the support member (40) is fixed in the mounting hole, and the other end is plugged into the planet carrier (11).

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