CN113211020B

CN113211020B - Processing technology of rotor room with power of 10MW and above

Info

Publication number: CN113211020B
Application number: CN202110720834.XA
Authority: CN
Inventors: 徐建华; 胡震
Original assignee: Jiangsu Zhenjiang New Energy Equipment Co ltd
Current assignee: Jiangsu Zhenjiang New Energy Equipment Co ltd
Priority date: 2021-03-15
Filing date: 2021-06-28
Publication date: 2023-02-03
Anticipated expiration: 2041-06-28
Also published as: CN113211020A; CN113042977A

Abstract

The invention relates to a processing technology of a rotor room with the power of 10MW or more, which comprises the following steps: a. blanking raw materials; b. rolling: rolling a large cylinder by a vertical plate rolling machine, and rolling a conical plate by a large conical roller plate rolling machine; c. welding the large cylinder body, the cone plate and the inner flange assembly; d. tempering in a ground sinking tempering furnace after the rounding correction; e. machining and forming; f. coating on a production line; g. and (7) packaging after inspection. Compared with the existing machining of a large-scale rotor room with the power of more than 10MW, the invention reduces the shaping process, greatly reduces the machining time, improves the working efficiency, and ensures that the machined workpiece has higher precision.

Description

Processing technology of rotor room with power of 10MW and above

Technical Field

The invention relates to the field of wind power equipment, in particular to a processing technology of a rotor room of 10MW or more.

Background

A large cylinder body and a cone plate in the existing rotor room are rolled by a common horizontal plate rolling machine, and the large cylinder body rolled by the plate rolling machine is easily deformed under the influence of gravity. And be used for the last roller of rolling up and lower roll on ordinary horizontal plate bending machine to be straight roller, to the rotor room more than 10MW, the cone board wherein is thick, big and heavy, take place easily to slide at the in-process of rolling up the cone board, draw wound roll roller and steel sheet easily, panel is still rolled the attenuation easily, the cone board that leads to rolling up is not enough after getting off from the plate bending machine precision, still need again in addition through steps such as processing plastic, can't reach the user demand after the plastic even, production efficiency is low.

Disclosure of Invention

In order to overcome the defects, the invention provides a processing technology of a rotor room with 10MW or more, which has simple steps, high processing precision and high efficiency, and comprises the following steps: a. Blanking raw materials; b. Rolling: rolling a large cylinder by a vertical plate rolling machine, and rolling a conical plate by a large conical roller plate rolling machine; c. welding the large cylinder body, the cone plate and the inner flange assembly; d. Tempering in a ground sinking tempering furnace after the rounding correction; e. Machining and forming; f. coating on a production line; g. and (6) packaging after inspection.

Preferably, the large conical roller plate rolling machine comprises a large conical roller 5 and two small conical rollers 6, the diameters of two ends of the large conical roller 5 are respectively larger than those of two ends of the small conical rollers 6, the large end of the large conical roller 5 is arranged at the upper part and the small end is arranged at the lower part, the small end of the small conical roller 6 is arranged at the upper part and the large end is arranged at the lower part, and the large end of the large conical roller 5 is arranged at one side with the large end of the small conical roller 6; the large conical roller 5 is arranged above the two small conical rollers 6, the two small conical rollers 6 are respectively arranged at two sides of the large conical roller 5, and the axes of the two small conical rollers 6 are parallel; and a horizontal backup roller 8 is also arranged at the small end of each of the two small conical rollers 6, and the raw material steel plate is clamped in a gap between the large conical roller 5 and the small conical roller 6 and leans against the backup roller 8 to be rolled and formed when the large conical roller and the small conical roller rotate. Wherein, the big conical rollers and the two small conical rollers respectively control the rotating speed independently.

Preferably, the large conical roll 5 and the small conical roll 6 have the same frustum height and the same taper of 5 degrees.

Preferably, the tempering temperature in step d is between 560 and 600 ℃.

Preferably, the step f comprises the steps of cleaning by a high-pressure water gun → sand blasting of a sand blasting machine → Venturi dedusting → zinc spraying of a zinc spraying machine → spraying of primer by a robot → spraying of top coat by the robot for 1-2 times of intermediate coat → spraying of top coat by the robot.

The beneficial effects of the invention are: compared with the existing machining of a large rotor room with the power of more than 10MW, the invention reduces the shaping process, greatly reduces the machining time, improves the working efficiency and ensures that the machined workpiece has higher precision.

Drawings

The invention will now be described, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a perspective view of a large cone roll plate winder;

FIG. 2 is a front view of a large cone roller board winder.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

A processing technology of a rotor room with 10MW and above comprises the following steps: a. Blanking raw materials; b. Rolling: rolling a large cylinder by a vertical plate rolling machine, and rolling a conical plate by a large conical roller plate rolling machine; c. welding the large cylinder body, the cone plate and the inner flange assembly; d. tempering at 560-600 ℃ in a ground sinking tempering furnace after the rounding correction; e. Turning, milling, drilling and other conventional machining forming; f. coating on a production line: cleaning with a high-pressure water gun → performing sand blasting treatment with a sand blasting machine → performing venturi dust removal → performing zinc blasting treatment with a zinc blasting machine → spraying primer with a robot → spraying paint with the robot for 1-2 times according to the requirement → spraying finish with the robot; g. and packaging after the inspection is qualified.

And (c) rolling the large cylinder by using a vertical plate rolling machine in the step (b), so that the deformation of the cylinder due to gravity is avoided.

In order to improve the processing precision and shorten the processing time, the large conical roller plate rolling machine of the invention comprises a large conical roller 5 and two small conical rollers 6 as shown in fig. 1-2, the diameters of two ends of the large conical roller 5 are respectively larger than the diameters of two ends of the small conical roller 6, the large end of the large conical roller 5 is arranged above and below the small end, the small end of the small conical roller 6 is arranged above and below the large end, and the large end of the large conical roller 5 and the large end of the small conical roller 6 are arranged on one side; the large conical roller 5 is arranged above the two small conical rollers 6, the two small conical rollers 6 are respectively arranged at two sides of the large conical roller 5, and the axes of the two small conical rollers 6 are parallel; and a horizontal backup roller 8 is also arranged at the small end of each of the two small conical rollers 6, and the raw material steel plate is clamped in a gap between the large conical roller 5 and the small conical roller 6 and leans against the backup roller 8 to be rolled and formed when the large conical roller and the small conical roller rotate. A big conical roller is last, and two little conical rollers are under to set up the backup roll in the structure of the little head side of conical roller, can make the awl body board can not take place to slide at system in-process of rolling up, guaranteed the machining precision, winding up roller and cone board can not hindered by the pulling in addition.

The large conical roller plate rolling machine further comprises a base 1, wherein a static wallboard 2 is fixed at one end of the base 1, an overturning wallboard 3 is hinged to the other end of the base 1, a first adjusting wallboard 4 is arranged on the inner side of the overturning wallboard 3, and a second adjusting wallboard 7 is arranged on the inner side of the static wallboard 2; a bearing seat is arranged in the static wallboard 2, the large end of the large conical roller 5 penetrates through the bearing seat and is connected with a first motor 51, and the small end of the large conical roller 5 is inserted into the turnover wallboard 3; the tip of little conical rollers 6 passes through the bearing and installs in first regulation wallboard 4, and the main aspects pass through the bearing and install in with second regulation wallboard 7, and the main aspects of two little conical rollers 6 link respectively has a second motor 61, and three motor has realized independent control. Wherein, the height of first regulation wallboard 4, upset wallboard 3, quiet wallboard 2 increases in proper order, and quiet wallboard is high, and the upset wallboard is then low, and when the in-process of cone body board book system, the raw materials steel sheet leans on the backing roll of lower side wallboard department, can expand in this low side wallboard top outside during the book system, and the wallboard can not stop the cone board production, can not influence the book system. The overturning wall plate 3 can be designed to be convex, the middle is high, the two ends are low, the lower part is as high as the top of the first adjusting wall plate 4, the small end of the large conical roller 4 is inserted into the part with the middle being high, the structure ensures that the part of the conical plate which is expanded outwards in the rolling process can not collide with the wall plate, the production efficiency is greatly improved, and 4-5 conical plates with the same specification can be rolled by the conventional plate rolling machine with the straight roller.

The frustum heights of the large conical roller 5 and the small conical roller 6 are equal, and the conicity is also equal and is 5 degrees. For the cone plate of the rotor room above 10MW, the diameter of the two ends of the large conical roller can be set to be 1255mm and 800mm, the diameter of the two ends of the small conical roller can be set to be 955mm and 500mm, and the cone plate with different specifications such as 10MW and 14MW can be processed through the arrangement of the conical rollers.

First regulation wallboard 4 and second are adjusted wallboard 7 and are all had two, and with two first regulation wallboards of same one side and the wallboard corresponding little conical rollers of second regulation, be equipped with a spout 13 on 2 inboards of quiet wallboard and 3 inboard bases 1 of upset wallboard respectively, two first regulation wallboards 4 are located the inboard spout of upset wallboard, and in the 2 inboard spouts of quiet wallboard of wallboard 7 were adjusted to two seconds, two lean on roller 8 to install respectively on two first regulation wallboards 4. The bearing between the both ends of little awl roller 6 and first regulation wallboard 4, the second regulation wallboard 7 is self-aligning bearing, is self-aligning bearing between the big end of bearing frame and big awl roller 5, also is equipped with self-aligning bearing in being used for supplying big awl roller 5 tip male hole of offering on the upset wallboard 3. Because the self-aligning bearing has the automatic aligning property, the self-aligning bearing can compensate the error caused by the non-concentricity and the shaft deflection, and the large cone roller and the small cone roller can not influence the equipment when adjusting according to the size specifications of different cone plates to be processed.

All there is accommodate the lead screw 14 in the side of every regulation wallboard, and accommodate the lead screw 14 and pass through lead screw seat 15 and install on base 1 to penetrate in the regulation wallboard that corresponds and parallel with spout 13, consequently can make through rotating accommodate the lead screw and adjust the wallboard and remove in the spout, reach the purpose of adjusting the interval between two little conical rollers. Because the cone plate has more specification types, the invention can realize rolling by adjusting the distance between the small cone rollers and the control speed of each motor according to the factors of thickness, diameter and the like of the cone plate to be rolled.

The large end of the large conical roller 5 penetrates through the bearing seat and then is connected with a first motor 51 through a coupler 55, a first cylinder 11 which is arranged upwards is arranged on the base 1 outside the static wallboard 2, and the top of a telescopic rod of the first cylinder 11 is hinged with the coupler 55; the base 1 outside the turnover wallboard 3 is provided with a second cylinder 12, and the top of a telescopic rod of the second cylinder 12 is hinged with the turnover wallboard 3. When the awl board is made to needs book, the big end that big conical rollers was lived to first cylinder draws is not supported the back slippage in order to avoid the tip of big conical rollers, and the second cylinder can stimulate the upset wallboard and outwards overturn this moment and open, can pack into the raw materials steel sheet between big conical rollers and the little conical rollers from the one side of opening after opening, and the raw materials steel sheet back that targets in place, the second cylinder pushes up the upset wallboard and makes the tip of big conical rollers insert, and first cylinder can stop the action of drawing big conical rollers this moment.

After the conical plate is rolled by the large conical roller rolling machine, the rolling time is greatly reduced, and the rolled conical plate has high precision, and a large cylinder rolled by the vertical rolling machine is not influenced by gravity to deform, so that the processed large cylinder and the processed conical plate have good forming effect, no reshaping is needed, and the flow and time of the whole process are further shortened.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made herein without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A processing technology of a rotor room with the power of 10MW and above is characterized by comprising the following steps: a. Blanking raw materials; b. Rolling: rolling a large cylinder by a vertical plate rolling machine, and rolling a conical plate by a large conical roller plate rolling machine; c. welding the large cylinder body, the cone plate and the inner flange assembly; d. Tempering in a ground sinking tempering furnace after the rounding correction; e. Machining and forming;

f. coating on a production line; g. Packaging after inspection; the large conical roller plate rolling machine comprises a large conical roller (5) and two small conical rollers (6), the diameters of the two ends of the large conical roller (5) are respectively larger than the diameters of the two ends of the small conical rollers (6), the large end of the large conical roller (5) is arranged above and below the small end, the small end of the small conical roller (6) is arranged above and below the large end, and the large end of the large conical roller (5) and the large end of the small conical roller (6) are arranged on one side; the large conical roller (5) is arranged above the two small conical rollers (6), the two small conical rollers (6) are respectively arranged at two sides of the large conical roller (5), and the axes of the two small conical rollers (6) are parallel; and the small ends of the two small conical rollers (6) are also provided with horizontal backup rollers (8), and the raw material steel plate is clamped in a gap between the large conical roller (5) and the small conical roller (6) and leans against the backup rollers (8) to be rolled and formed when the large conical roller and the small conical roller rotate.

2. The processing technology of rotor room of 10MW and above according to claim 1, characterized in that the frustum height of the big cone roller (5) and the small cone roller (6) are equal and the taper is 5 degrees.

3. A process for machining a rotor housing of 10MW and above according to claim 1, wherein the tempering temperature in step d is adjustable between 560 ℃ and 600 ℃.

4. A process for manufacturing a rotor room of 10MW or more according to claim 1, wherein the step f comprises cleaning → sand blasting → dust removal → zinc spraying → primer spraying → paint spraying 1-2 times of midcoat → top coat spraying.