CN215090794U

CN215090794U - Tool for repairing bearing hole tower on blade side of wind power gear box body

Info

Publication number: CN215090794U
Application number: CN202022876832.3U
Authority: CN
Inventors: 杨年; 顾龙月; 吴伟强
Original assignee: Nanjing Avis Transmission Technology Co ltd
Current assignee: Nanjing Avis Transmission Technology Co ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2021-12-10
Anticipated expiration: 2030-12-02

Abstract

The utility model provides a repair frock on wind-powered electricity generation gear box blade side bearing hole tower, its characterized in that: the boring cutter and the boring cutter seat are fixedly connected with a boring bar, the boring bar penetrates through a boring machine sleeve and then is connected with a power input device, self-lubricating bearings are fixedly connected inside two ends of the boring machine sleeve, the boring bar is in clearance fit with the self-lubricating bearings, and the boring machine sleeve is in clearance fit with a bearing hole on the motor side of the gear box; the end part of the sleeve of the boring machine is provided with a flange plate, and the periphery of the flange plate is uniformly provided with more than one mounting hole in a through hole form and more than one jacking hole in a through screw hole form; the jacking bolt is screwed in and penetrates through the jacking hole to be in contact with the end face of the side of the motor of the gear box, and the mounting bolt penetrates through the mounting hole to be screwed in a screw hole formed in the end face of the side of the motor of the gear box, so that the sleeve of the boring machine is connected with the gear box. The utility model provides a maintain wind-powered electricity generation gear box blade side dead eye's frock under the prerequisite of guaranteeing processing stability and precision.

Description

Tool for repairing bearing hole tower on blade side of wind power gear box body

Technical Field

The utility model belongs to the technical field of wind-powered electricity generation gear box and specifically relates to a maintenance frock of wind-powered electricity generation gear box.

Background

At present, when the bearing hole on the inner side of the wind power gear box body is maintained on a tower, the worn bearing hole is repaired by gluing in the worn bearing hole, but because the difference between the glued material and the box body is large, the concentricity of the glued material and the bearing hole on the other side is difficult to be ensured, the stability is poor, and the precision and the form and position tolerance of the machined bearing hole can not meet the assembly requirements.

SUMMERY OF THE UTILITY MODEL

The utility model provides a repair frock on wind-powered electricity generation gear box blade side bearing hole tower, the shortcoming of prior art is solved to the purpose, provides a frock of maintaining wind-powered electricity generation gear box blade side bearing hole under the prerequisite of guaranteeing processing stability and precision.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a repair frock on wind-powered electricity generation gear box blade side bearing hole tower which characterized in that:

the boring cutter and the boring cutter seat are fixedly connected with a boring bar, the boring bar penetrates through a boring machine sleeve and then is connected with a power input device, self-lubricating bearings are fixedly connected inside two ends of the boring machine sleeve, the boring bar is in clearance fit with the self-lubricating bearings, and the boring machine sleeve is in clearance fit with a bearing hole on the motor side of the gear box;

the end part of the sleeve of the boring machine is provided with a flange plate, and the periphery of the flange plate is uniformly provided with more than one mounting hole in a through hole form and more than one jacking hole in a through screw hole form;

the jacking bolt is screwed in and penetrates through the jacking hole to be in contact with the end face of the side of the motor of the gear box, and the mounting bolt penetrates through the mounting hole to be screwed in a screw hole formed in the end face of the side of the motor of the gear box, so that the sleeve of the boring machine is connected with the gear box.

The mounting holes and the jacking holes are respectively and uniformly arranged on the flange plate in a circumferential manner.

The utility model discloses an useful part lies in:

1. the stability of the boring bar is ensured by matching the sleeve of the boring machine with the bearing hole on the motor side;

2. eight jacking holes are designed at the joints of the sleeve and the box body, so that the boring rod can be adjusted, and the concentricity of the processed bearing hole is ensured;

3. the bearing is optimized, and the stability of the boring bar is improved;

4. the device and the method are convenient for aerial maintenance in the engine room, and shorten the maintenance period of the gearbox;

5. the bearing hole of the gear box is directly maintained in the engine room, so that the hoisting is avoided, and the maintenance cost is reduced;

6. can install nonstandard bearing after the dead eye processing is accomplished, avoid secondary operation.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a sectional view of the present invention;

FIG. 2 is a cross-sectional view of a sleeve of a boring machine;

fig. 3 is a view from direction a of fig. 2.

Detailed Description

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other embodiments can be obtained according to the drawings without inventive labor. In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "upper", "lower", "inner", "outer", "bottom", and the like as used herein are used in the description to indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1, 2, and 3:

the utility model discloses constitute by boring cutter and boring cutter seat 1, boring bar 2, self-lubricating bearing 3, boring machine sleeve 4, power input device 6, connect through bolt, pin, screw, key and clearance fit's mode between each part.

The boring cutter and the boring cutter seat 1 are fixedly connected with the boring rod 2 through screws, and a device on the boring cutter seat can be used for adjusting the radial feeding amount of the boring cutter, so that the precision reaches 0.01 mm.

The boring bar 2 is connected with a power input device 6 through a key, and the power input device 6 comprises a motor, a worm and gear speed reducer and a controller.

The boring bar 2 penetrates through the boring machine sleeve 4, the boring bar 2 is in clearance fit with the self-lubricating bearings 3, the self-lubricating bearings 3 are fixedly connected with the boring machine sleeve 4 through screws, therefore, the boring bar 2 is erected in the boring machine sleeve 4 through the two self-lubricating bearings 3, the self-lubricating bearings 3 are adopted at the positions, contacted with the boring bar 2, inside the two ends of the boring machine sleeve 4, and the clearance is controlled within 0.02mm, so that the stability of the boring bar 2 in the operation process can be effectively controlled.

The sleeve 4 of the boring machine is in clearance fit with the side bearing hole 71 of the motor of the gear box, so that the stability of the sleeve can be effectively ensured

The end part of the sleeve 4 of the boring machine is provided with a

flange

41, and 8 mounting holes 42 in the form of through holes and 8 jacking holes 5 in the form of through screw holes are uniformly distributed on the periphery of the flange 41.

The jacking bolts 9 are screwed into and penetrate through the jacking holes 5 to be in contact with the end face 72 of the motor side of the gear box, the machining center of the boring rod 2 is controlled by the boring machine sleeve 4 and the eight jacking holes 5 on the end face 72 of the motor side of the gear box, and during adjustment, the jacking bolts 9 are in contact with the end face 72 of the motor side of the gear box through the jacking holes 5 and respectively rotate 8 jacking bolts 9, so that the contact degrees in different directions are adjusted, the boring machine sleeve 4 can be controlled to swing, the machining center of the boring rod 2 is adjusted, and the concentricity of boring holes is effectively guaranteed.

The mounting bolt 8 passes through the mounting hole 42 and then is screwed into a screw hole formed in the motor side end surface 72 of the gear box, so that the sleeve 4 of the boring machine is connected with the gear box 7.

The utility model discloses the step of frock is as follows:

1. pulling out the gear box shafting, and removing the gear box shafting which cannot be directly pulled out and needs to be disassembled; before boring, a shaft system of the fan gear box needs to be pulled out, and if the shaft system cannot be directly pulled out, the shaft system needs to be dismounted and taken out for repair.

2. Installing a boring machine sleeve 4, wherein the boring machine sleeve 4 is matched with a gear box motor side bearing hole 71, and a through hole type installation hole 42 consistent with a box body structure is arranged on the end surface 72 of the boring machine sleeve 4 and the gear box motor side and can be fixed by an installation bolt 8;

3. installing a boring bar 2, respectively fastening a self-lubricating bearing 3 at two ends of a sleeve 4 of the boring machine by using screws, and controlling the clearance between the self-lubricating bearing 3 and the boring bar 2 within 0.02 mm;

4. a construction platform is built on the motor side of the gearbox body, and a power input device 6 comprising a motor, a turbine worm speed reducer and a controller, namely an axial feeding device, a rotary driving device and the like is installed on the platform and is in key connection with the boring bar 2;

5. installing a boring cutter and a boring cutter seat 1, and measuring the size of a bearing hole 73 on the side of a blade of a box body of the wind power gear box;

6. taking the aperture of an oil jet ring at the side of a blade of a gearbox body as a reference, adjusting the centrality of the repairing device through jacking holes 5 in eight directions, requiring the runout to be less than 0.03mm, and fastening a mounting bolt 8 at the motor side of the gearbox after centering is finished;

7. the power input device 6 comprising a rotary driving device and an axial feeding device is matched with a driving boring bar 2 to drive a boring cutter to bore and repair the bearing hole 73 on the blade side of the gearbox body of the fan gearbox;

8. and (4) dismantling tools such as a boring machine, cleaning the side bearing hole 73 of the fan gearbox body blade, and installing a non-standard bearing.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a repair frock on wind-powered electricity generation gear box blade side bearing hole tower which characterized in that: the boring cutter and the boring cutter seat are fixedly connected with a boring bar, the boring bar penetrates through a boring machine sleeve and then is connected with a power input device, self-lubricating bearings are fixedly connected inside two ends of the boring machine sleeve, the boring bar is in clearance fit with the self-lubricating bearings, and the boring machine sleeve is in clearance fit with a bearing hole on the motor side of the gear box; the end part of the sleeve of the boring machine is provided with a flange plate, and the periphery of the flange plate is uniformly provided with more than one mounting hole in a through hole form and more than one jacking hole in a through screw hole form; the jacking bolt is screwed in and penetrates through the jacking hole to be in contact with the end face of the side of the motor of the gear box, and the mounting bolt penetrates through the mounting hole to be screwed in a screw hole formed in the end face of the side of the motor of the gear box, so that the sleeve of the boring machine is connected with the gear box.

2. The tool for repairing the bearing hole tower on the blade side of the wind power gearbox casing body as claimed in claim 1, wherein: the mounting holes and the jacking holes are respectively and uniformly arranged on the flange plate in a circumferential manner.