阅读说明：本技术 一种大型永磁直驱式风力发电机转子端盖板装配工装 (Large-scale permanent magnetism direct drive formula aerogenerator rotor end cover plate assembly fixture ) 是由 李岩 龚天明 邵平安 于 2019-11-06 设计创作，主要内容包括：本发明公开一种大型永磁直驱式风力发电机转子端盖板装配工装,包括若干组呈圆环状分布的支撑架,任一支撑架包括支撑底座、轴向升降组件和承托板,轴向升降组件能够带动转子端盖板沿轴向升降,调节转子端盖板与转子支架之间的轴向距离；承托板承托板上所设的滚动体能够支撑转子端盖板周向转动,方便对齐转子端盖板的安装孔和转子支架的安装孔。转子端盖板借助支撑架实现组装,避免手动吊装转子端盖板,降低转子端盖板坠落的风险,同时能够降低转子端盖板的组装难度,劳动强度小,安全性高。因此,本发明所提供的型永磁直驱式风力发电机转子端盖板装配工装能够同时提升装配效率和装配安全性。(The invention discloses an assembly tool for a rotor end cover plate of a large permanent magnet direct-drive wind driven generator, which comprises a plurality of groups of support frames distributed in a circular ring shape, wherein any one of the support frames comprises a support base, an axial lifting assembly and a bearing plate, the axial lifting assembly can drive the rotor end cover plate to lift along the axial direction, and the axial distance between the rotor end cover plate and a rotor bracket is adjusted; the rolling bodies arranged on the bearing plate of the bearing plate can support the rotor end cover plate to rotate circumferentially, and the rotor end cover plate can be conveniently aligned with the mounting hole of the rotor end cover plate and the mounting hole of the rotor support. The rotor end cover plate is assembled by means of the support frame, the rotor end cover plate is prevented from being hoisted manually, the risk of falling of the rotor end cover plate is reduced, meanwhile, the assembling difficulty of the rotor end cover plate can be reduced, the labor intensity is low, and the safety is high. Therefore, the assembling tool for the end cover plate of the rotor of the permanent magnet direct-drive wind driven generator can improve the assembling efficiency and the assembling safety at the same time.)

1. The utility model provides a large-scale permanent magnetism direct drive formula aerogenerator rotor end cover plate assembly fixture which characterized in that is the support frame (1) that the ring form distributes including a plurality of groups, arbitrary support frame (1) includes:

a support base (11);

an axial lifting component (12) which is fixedly arranged on the supporting base (11) and is used for driving the rotor end cover plate (01) to lift along the axial direction;

the bearing plate (13) is arranged at the top of the axial lifting component (12) and used for bearing the rotor end cover plate (01), and the bearing plate (13) is provided with a rolling body (14) used for supporting the circumferential rotation of the rotor end cover plate (01).

2. The assembly tooling for the rotor end cover plate of the large permanent magnet direct-drive wind driven generator according to claim 1, wherein any one of the support frames (1) further comprises a radial telescopic assembly (15) which is fixedly arranged at the top of the axial lifting assembly (12), fixedly connected with the support plate (13) and used for driving the support plate (13) to radially expand and contract.

3. The assembly tooling for the rotor end cover plate of the large permanent magnet direct-drive wind driven generator according to claim 2, wherein the axial lifting assembly (12) comprises:

an axial fixing sleeve (121) vertically fixed on the supporting base (11);

an axial sliding sleeve (122) slidably nested at one end of the axial fixing sleeve (121) far away from the supporting base (11);

and the axial driving piece is fixedly connected with the axial sliding sleeve (122) and is used for driving the axial sliding sleeve (122) to slide relative to the axial fixing sleeve (121) along the axial direction.

4. The assembly tooling for the rotor end cover plate of the large permanent magnet direct-drive wind driven generator according to claim 3, wherein the axial driving member comprises:

the axial lifting handle (123) penetrates through the axial fixing sleeve (121), and a first axial bevel gear is fixedly arranged at the end part of the axial lifting handle (123);

an axial drive screw having a second axial bevel gear at an end thereof, the second axial bevel gear meshing with the first axial bevel gear;

and the axial transmission nut is matched with the axial transmission lead screw, is fixedly connected with the axial sliding sleeve (122), and is used for driving the axial sliding sleeve (122) to axially slide relative to the axial fixing sleeve (121) when the axial lifting handle (123) is rotated.

5. The large permanent magnet direct drive wind turbine rotor end cover plate assembling tool according to claim 3, wherein the radial telescopic assembly (15) comprises:

the radial fixing sleeve (151) is slidably nested at the end part of the bearing plate (13) and is vertically arranged at the top of the axial sliding sleeve (122);

and the radial driving piece is fixedly connected with the bearing plate (13) and is used for driving the bearing plate (13) to slide relative to the radial fixing sleeve (151) along the radial direction.

6. The assembly tooling for the rotor end cover plate of the large permanent magnet direct-drive wind driven generator according to claim 5, wherein the radial driving member comprises:

a radial sliding handle (152) penetrating through the radial fixing sleeve (151), wherein a first radial bevel gear is fixedly arranged on the radial sliding handle (152);

a radial drive screw having a second radial bevel gear at an end thereof engaged with the first radial bevel gear;

and the radial transmission nut is matched with the radial transmission screw rod, is fixedly connected with the bearing plate (13) and is used for driving the bearing plate (13) to radially slide relative to the radial fixing sleeve (151) when the radial sliding handle (152) is rotated.

7. The assembly tooling for the rotor end cover plate of the large permanent magnet direct-drive wind driven generator according to claim 5, wherein a stop protrusion for abutting against the rotor end cover plate (01) to prevent the rotor end cover plate (01) from falling is arranged at one end of any supporting plate (13) far away from the radial fixing sleeve (151).

8. The assembly tooling for the rotor end cover plate of the large permanent magnet direct-drive wind driven generator according to any one of claims 5 to 7, wherein all the axial driving members are axial driving cylinders, and further comprising:

the height detection pieces are used for detecting the heights of the axial lifting assemblies (12) in a one-to-one correspondence mode;

and the controller is connected with all the height detection pieces and all the axial driving cylinders and is used for controlling the corresponding axial driving cylinders to drive the corresponding axial sliding sleeves (122) to axially lift relative to the axial fixing sleeves (121) according to signals sent by the height detection pieces so as to enable all the axial lifting components (12) to be equal in height.

9. The assembly tooling for the rotor end cover plate of the large permanent-magnet direct-drive wind turbine generator as claimed in claim 8, wherein the controller is further configured to control all the axial driving members to synchronously operate according to the input axial height signal, so that all the axial sliding sleeves (122) are lifted up and down by a preset height simultaneously along the axial direction relative to the corresponding axial fixing sleeves (121).

10. The assembly tooling for the rotor end cover plate of the large permanent magnet direct-drive wind driven generator according to claim 8, wherein all the radial driving members are radial driving cylinders, and further comprising:

the outer diameter detection piece is connected with the controller and used for detecting the outer diameter of the rotor end cover plate (01); the controller is used for controlling all the radial driving cylinders to drive the corresponding supporting plates (13) to extend and retract along the radial direction relative to the radial fixing sleeve (151) according to signals sent by the outer diameter detection piece so that the outer diameter of the supporting ring formed by all the supporting plates (13) is equal to the outer diameter of the rotor end cover plate (01).

Technical Field

The invention relates to the technical field of wind power generation, in particular to an assembly tool for a rotor end cover plate of a large permanent magnet direct-drive wind driven generator.

Background

The large permanent magnet direct-drive wind driven generator does not need to depend on a gear box, has the advantages of small mechanical loss, high operation efficiency, low maintenance cost and the like, is widely concerned, and has a good application prospect.

The existing large permanent magnet direct-drive wind driven generator generally comprises a rotor support and a rotor end cover plate, and during assembly, the rotor end cover plate is generally manually placed below the rotor support in a hoisting mode, and then the hoisted rotor end cover plate is rotated in the circumferential direction, so that a mounting hole of the rotor end cover plate is aligned with a mounting hole of the rotor support. Therefore, the existing rotor end cover plate is assembled through manual hoisting, the labor intensity is high, the assembly efficiency is reduced, and the safety risk is higher.

Therefore, how to improve the assembly efficiency and the assembly safety of the existing rotor end cover plate is a technical problem to be solved urgently by those skilled in the art.

Disclosure of Invention

In view of the above, the present invention is directed to provide.

The specific scheme is as follows:

the invention provides a large permanent magnet direct-drive wind driven generator rotor end cover plate assembly tool, which comprises a plurality of groups of support frames distributed in a circular ring shape, wherein any one of the support frames comprises:

a support base;

the axial lifting component is fixedly arranged on the supporting base and used for driving the rotor end cover plate to lift along the axial direction;

and the bearing plate is arranged at the top of the axial lifting component and used for bearing the rotor end cover plate, and the bearing plate is provided with a rolling body for supporting the circumferential rotation of the rotor end cover plate.

Preferably, any support frame further comprises a radial telescopic component which is fixedly arranged at the top of the axial lifting component, fixedly connected with the bearing plate and used for driving the bearing plate to radially extend and retract.

Preferably, the axial lifting assembly comprises:

an axial fixing sleeve vertically fixed on the supporting base;

the axial sliding sleeve is slidably nested at one end of the axial fixing sleeve, which is far away from the supporting base;

and the axial driving piece is fixedly connected with the axial sliding sleeve and is used for driving the axial sliding sleeve to slide relative to the axial fixing sleeve along the axial direction.

Preferably, the axial drive comprises:

the axial lifting handle penetrates through the axial fixing sleeve, and a first axial bevel gear is fixedly arranged at the end part of the axial lifting handle;

the end part of the axial transmission screw is provided with a second axial bevel gear meshed with the first axial bevel gear;

and the axial transmission nut is matched with the axial transmission lead screw, is fixedly connected with the axial sliding sleeve and is used for driving the axial sliding sleeve to axially slide relative to the axial fixing sleeve when the axial lifting handle is rotated.

Preferably, the radial expansion assembly comprises:

the radial fixing sleeve is slidably nested at the end part of the bearing plate and is vertically arranged at the top of the axial sliding sleeve;

and the radial driving piece is fixedly connected with the bearing plate and is used for driving the bearing plate to slide relative to the radial fixing sleeve along the radial direction.

Preferably, the radial drive comprises:

a radial sliding handle penetrates through the radial fixing sleeve, and a first radial bevel gear is fixedly arranged on the radial sliding handle;

the end part of the radial transmission screw is provided with a second radial bevel gear meshed with the first radial bevel gear;

and the radial transmission nut is matched with the radial transmission screw rod, is fixedly connected with the bearing plate and is used for driving the bearing plate to radially slide relative to the radial fixed sleeve when the radial sliding handle is rotated.

Preferably, one end of any supporting plate, which is far away from the radial fixing sleeve, is provided with a stopping bulge which is used for abutting against the rotor end cover plate to prevent the rotor end cover plate from falling.

Preferably, all the axial drivers are embodied as axial drive cylinders, further comprising:

the height detection pieces are used for detecting the heights of the axial lifting assemblies in a one-to-one correspondence manner;

and the controller is used for controlling the corresponding axial driving cylinders to drive the corresponding axial sliding sleeves to lift axially relative to the axial fixed sleeves according to signals sent by the height detecting parts so as to enable all the axial lifting components to be equal in height.

Preferably, the controller is further configured to control all the axial driving members to synchronously operate according to the input axial height signal, so that all the axial sliding sleeves are lifted by a preset height simultaneously along the axial direction relative to the corresponding axial fixing sleeves.

Preferably, all the radial drives are embodied as radial drive cylinders, further comprising:

the outer diameter detection piece is connected with the controller and used for detecting the outer diameter of the rotor end cover plate; the controller is used for controlling all the radial driving cylinders to drive the corresponding bearing plates to stretch and retract along the radial direction relative to the radial fixing sleeve according to signals sent by the outer diameter detection piece so that the outer diameter of the support ring formed by all the bearing plates is equal to the outer diameter of the rotor end cover plate.

Compared with the background technology, the assembly tool for the rotor end cover plate of the large permanent magnet direct-drive wind driven generator comprises a plurality of groups of support frames distributed in a circular ring shape, and the rotor end cover plate is supported. Any supporting frame comprises a supporting base, an axial lifting assembly and a supporting plate, wherein the axial lifting assembly can drive the rotor end cover plate to lift along the axial direction, the axial distance between the rotor end cover plate and the rotor support is adjusted, and the height of the rotor end cover plate is prevented from being manually lifted and adjusted; furthermore, the bearing plate is used for supporting the rotor end cover plate, and the rolling bodies arranged on the bearing plate can support the rotor end cover plate to rotate circumferentially, so that the mounting holes of the rotor end cover plate and the mounting holes of the rotor support can be aligned conveniently, and manual hoisting alignment is avoided.

Therefore, the rotor end cover plate can be assembled by means of the support frame, the rotor end cover plate is prevented from being hoisted manually, the risk of falling of the rotor end cover plate is reduced, and the safety is high; meanwhile, the assembling difficulty of the rotor end cover plate can be reduced, the labor intensity is low, and the assembling efficiency is favorably improved.

Therefore, the assembling tool for the end cover plate of the rotor of the permanent magnet direct-drive wind driven generator can improve the assembling efficiency and the assembling safety at the same time.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 structural diagram of an assembly tool for a rotor end cover plate of a large permanent magnet direct-drive wind turbine according to an embodiment of the present invention;

FIG. 2 is a schematic view of any one of the stands of FIG. 1;

fig. 3 is an assembly state diagram of the assembly tool for the rotor end cover plate of the large permanent magnet direct-drive wind driven generator provided by the invention.

The reference numbers are as follows:

rotor end cover plate 01 and rotor bracket 02;

a support frame 1;

the device comprises a supporting base 11, an axial lifting assembly 12, a bearing plate 13, rolling bodies 14 and a radial telescopic assembly 15;

an axial fixing sleeve 121, an axial sliding sleeve 122 and an axial lifting handle 123;

a radial fixation sleeve 151 and a radial sliding handle 152.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific examples.

Referring to fig. 1 to 3, fig. 1 is a structural diagram of an assembly fixture for an end cover plate of a rotor of a large permanent magnet direct-drive wind turbine according to an embodiment of the present invention; FIG. 2 is a schematic view of any one of the stands of FIG. 1; fig. 3 is an assembly state diagram of the assembly tool for the rotor end cover plate of the large permanent magnet direct-drive wind driven generator provided by the invention.

The embodiment of the invention discloses an assembly tool for a rotor end cover plate of a large permanent magnet direct-drive wind driven generator, which comprises a plurality of groups of support frames 1, wherein the rotor end cover plate 01 is annular, and all the support frames 1 are uniformly distributed in an annular shape.

Any one of the support stands 1 includes a support base 11, an axial elevating assembly 12, and a support plate 13, wherein the support base 11 is fixed on the ground by anchor bolts so as to support other components.

The axial lifting component 12 is fixedly arranged on the supporting base 11, and specifically, the axial lifting component 12 is fixed on the upper surface of the supporting base 11 by welding. Axial lifting unit 12 can drive rotor end cover plate 01 and go up and down along the axial, adjusts the axial distance between rotor end cover plate 01 and the rotor support 02, compares in manual hoist and mount rotor end cover plate 01, and axial lifting unit 12's regulation is more convenient, the security is higher.

A support plate 13 is provided on top of the axial lift assembly 12 to support the rotor end cover plate 01. The carrier plate 13 is provided with rolling elements 14 for supporting the rotor end cover plate 01 for circumferential rotation. Specifically, each bearing plate 13 is provided with a mounting groove extending in the thickness direction, and each mounting groove is rotatably mounted with two rolling bodies 14, each rolling body 14 extending in the radial direction of the rotor end cover plate 01. It should be noted that the top surface of each rolling element 14 is higher than the top surface of the supporting plate 13, so as to provide a condition for the supporting plate 13 to support the rotor end cover plate 01 to rotate circumferentially.

In conclusion, the rotor end cover plate 01 can be assembled by the support frame 1, so that the rotor end cover plate 01 is prevented from being manually hoisted, the risk of falling of the rotor end cover plate 01 is reduced, and the safety is high; meanwhile, the assembling difficulty of the rotor end cover plate 01 can be reduced, the labor intensity is low, and the assembling efficiency is favorably improved. Therefore, the assembling tool for the rotor end cover plate 01 of the permanent magnet direct-drive wind driven generator can improve assembling efficiency and assembling safety at the same time.

In order to be suitable for supporting rotor end cover plates 01 with different specifications, any supporting frame 1 further comprises a radial telescopic assembly 15 which is fixedly arranged at the top of the axial lifting assembly 12 and fixedly connected with the bearing plate 13, and the radial telescopic assembly 15 can drive the bearing plate 13 connected with the radial telescopic assembly to move along the radial direction, so that all the bearing plates 13 are gathered or dispersed mutually, thereby forming supporting rings with different outer diameters which are matched with the rotor end cover plates 01 with different outer diameters, and the universality is better.

In the first embodiment, the axial lifting assembly 12 comprises an axial fixed sleeve 121, an axial sliding sleeve 122 and an axial drive. The axial fixing sleeve 121 is vertically fixed on the supporting base 11 by welding and has a cylindrical hollow structure. The axial sliding sleeve 122 is slidably nested at an end of the axial fixing sleeve 121 away from the support base 11, and specifically, the axial sliding sleeve 122 is inserted at the top of the axial fixing sleeve 121. Of course, the number of the axial sliding sleeve 122 is less than one, and the axial sliding sleeve 122 may be several sections of cylindrical sleeves nested with each other to increase the lifting height. The axial driving member is fixedly connected to the axial sliding sleeve 122, and is configured to drive the axial sliding sleeve 122 to slide relative to the axial fixing sleeve 121 along the axial direction.

In this embodiment, the axial driving member includes an axial lifting handle 123, an axial driving lead screw and an axial driving nut, wherein the axial lifting handle 123 passes through the axial fixing sleeve 121, and the height and the position of the axial lifting handle are set for convenient operation, which is not limited herein. The axial lift handle 123 has an L-shape, but the structure thereof is not limited thereto. The key point is that a first axial bevel gear is fixedly arranged at the end part of the axial lifting handle 123.

The end of the axial drive screw has a second axial bevel gear, and the first axial bevel gear mates with the second axial bevel gear, so that the axial lift handle 123 drives the axial drive screw to rotate.

The axial drive nut is engaged with the axial drive screw, and when the axial drive screw rotates, the axial drive screw drives the axial drive nut to slide axially, so that the axial drive nut drives the axial sliding sleeve 122 to slide axially relative to the axial fixing sleeve 121. Of course, the driving manner of the axially sliding sleeve 122 is not limited thereto.

In this embodiment, the radial expansion assembly 15 comprises a radial fixing sleeve 151 and a radial driving element, wherein the radial fixing sleeve 151 is slidably nested at the end of the bearing plate 13 and is vertically fixed on the top of the axial sliding sleeve 122 by welding. The radial fixing sleeve 151 has a rectangular hollow cross section so as to be fitted around the outer periphery of the support plate 13. To prevent the support plate 13 from coming off the radial fixation sleeve 151, the end of the radial fixation sleeve 151 is provided with a stop ring.

The radial driving member is fixedly connected to the supporting plate 13 and is used for driving the supporting plate 13 to slide relative to the radial fixing sleeve 151 along the radial direction.

In this embodiment, the working principle of the radial driving member is the same as that of the axial driving member, and the radial driving member includes a radial lifting handle, a radial driving lead screw and a radial driving nut, wherein the radial lifting handle is also L-shaped, and one end of the radial lifting handle passes through the radial fixing sleeve 151. Similarly, a first radial bevel gear is fixedly arranged at the end part of the radial lifting handle.

The end part of the radial transmission lead screw is provided with a second radial bevel gear, and the first radial bevel gear is matched with the second radial bevel gear, so that the radial lifting handle drives the radial transmission lead screw to rotate.

The radial transmission nut is matched with the radial transmission screw rod, when the radial transmission screw rod rotates, the radial transmission screw rod drives the radial transmission nut to slide along the radial direction, and therefore the radial transmission nut drives the supporting plate 13 connected with the radial transmission nut to slide along the radial direction relative to the radial fixing sleeve 151. Of course, the driving method of the support plate 13 is not limited to this.

In order to prevent the rotor end cover plate 01 from falling, the end, far away from the radial fixing sleeve 151, of any supporting plate 13 is provided with a stop protrusion, the stop protrusion can be abutted against the rotor end cover plate 01, the rotor end cover plate 01 is prevented from falling, and the safety is further improved. In this embodiment, the stopping protrusion may be a circular arc-shaped stopping protrusion made of an elastic material such as rubber, and an arc surface of the circular arc-shaped stopping protrusion abuts against the inner ring of the rotor end cover plate 01. Of course, the structure and material of the stop protrusion are not limited thereto.

The second embodiment only changes the type of axial and radial drivers compared to the first embodiment, the other construction remaining unchanged.

In a second embodiment, all the axial drives are embodied as axial drive cylinders, preferably hydraulic cylinders. Correspondingly, the invention further comprises a plurality of height detection pieces and a controller, wherein all the height detection pieces are used for correspondingly detecting the height of each axial lifting assembly 12 one by one. The height detecting member may be a distance sensor, but is not limited thereto.

The controller is respectively connected with all the height detection pieces and all the axial driving cylinders. When any height detection piece detects that the height of the axial lifting component 12 connected with the height detection piece is not equal to the heights of other axial lifting components 12, the height detection piece sends a signal to the controller, the controller controls the corresponding axial driving cylinder to act, the axial driving cylinder drives the axial sliding sleeve 122 connected with the axial driving cylinder to lift relative to the axial fixing sleeve 121 along the axial direction, so that the heights of all the axial lifting components 12 are equal, the heights of all the axial lifting components 12 are automatically adjusted, the rotor end cover plate 01 is prevented from being turned over due to unstable stress in the assembling process, the automation degree is high, and the assembling efficiency and the safety are improved.

In this embodiment, the controller can also control all the axial driving members to simultaneously operate according to the input axial height signal, so that all the axial sliding sleeves 122 can be lifted and lowered simultaneously relative to the corresponding axial fixing sleeves 121, thereby avoiding adjusting the axial lifting assemblies 12 one by one, and having high automation degree, high speed adjusting block and high assembly efficiency. It should be noted that the axial height signal may be an electrical signal carrying the lifting height, and may be input into the controller in advance.

Further, in this particular embodiment, all radial drives are embodied as radial drive cylinders, preferably hydraulic cylinders. Correspondingly, the invention also comprises an outer diameter detection piece connected with the controller, so that the outer diameter of the rotor end cover plate 01 can be detected by the outer diameter detection piece. The outer diameter detecting member may be an outer diameter detecting sensor or an obstacle sensor, but is not limited thereto.

When the outer diameter detection piece detects that the outer diameter of the rotor end cover plate 01 is not equal to the outer diameter of a supporting ring formed by all the supporting plates 13, the outer diameter detection piece sends a signal to the controller, the controller controls all the radial driving cylinders to act, the radial driving cylinders drive the supporting plates 13 connected with the radial driving cylinders to stretch and retract along the radial direction relative to the radial fixing sleeve 151, the outer diameter of the supporting ring is equal to the outer diameter of the rotor end cover plate 01, the supporting ring fully supports the rotor end cover plate 01, the rotor end cover plate 01 is prevented from falling in the circumferential rotation process, the automation degree is high, and the safety is good.

Of course, the structure and driving manner of the axial driving member and the radial driving member are not limited to the two specific embodiments, and other similar structures are adopted without affecting the purpose of achieving the present invention.

The assembly tool for the rotor end cover plate of the large permanent magnet direct-drive wind driven generator provided by the invention is described in detail, a specific example is applied in the specification to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.