Device for improving flatness through pressing after heat treatment
By designing a pressing and improving flatness device for forgings after heat treatment, the problem of poor flatness of products after heat treatment is solved, and the effect of improving processing efficiency, ensuring product quality and reducing costs is achieved.
Patent Information
- Application Number
- CN202323481817.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-20
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2033-12-20
AI Technical Summary
After heat treatment, ring forgings such as wind power flanges, yaw bearings and pitch bearings often have poor flatness, resulting in increased quality differences and rework during subsequent processing.
A device for improving flatness after heat treatment is designed, including a base platform, pressed plate, I-supporting steel and load-bearing block. Through the combination of these devices, the heat-treated products are pressed and their flatness is corrected.
It effectively solves the problem of poor product flatness after heat treatment, improves the efficiency of subsequent processing, reduces personnel and energy costs, ensures the unity of product quality, and reduces the cost of repair.
Smart Images
Figure CN222428940U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat treatment, in particular to a device for improving flatness by pressing after heat treatment. Background Art
[0002] Wind turbine flanges, yaw bearings, pitch bearings and other ring forgings have large diameters, usually in the range of 1-5 meters. After heat treatment, they will inevitably deform due to organizational changes and the product's own morphology, especially some of these products often have poor flatness. Such products are very likely to be defective in the subsequent processing process, and it is necessary to invest extra time and energy to pay attention to the production situation. In addition, due to poor flatness, the same end face will have quality differences. Therefore, it is necessary to propose a device for improving flatness by pressing after heat treatment to solve the above problems. Utility Model Content
[0003] The utility model aims to solve the shortcomings of the prior art and provide a device for improving flatness after pressing by heat treatment, so as to solve the problem of poor flatness of the current products after heat treatment.
[0004] The technical solution adopted by the utility model to solve its technical problem is to press the hot product after heat treatment through a combination of four specially designed devices, and correct the flatness of the product through pressing. The four devices are a basic platform, a pressing plate, an I-beam support steel and a load-bearing block, wherein the basic platform is a first basic ring and a second basic ring welded together through 12 connecting blocks, and then 6 support blocks are welded on the 12 connecting blocks. The product is placed using this basic platform as a horizontal reference, and then the pressing plate is placed on the product, and then 3 I-beam support steels are placed according to the actual situation, and finally a load-bearing block is placed on the I-beam support steel, and naturally cooled to room temperature indoors.
[0005] The utility model provides a device for improving flatness by pressing after heat treatment, comprising: a first base ring, a second base ring, a connecting block, a supporting block, a pressing plate, an I-beam supporting steel and a weight block; the diameter of the first base ring is greater than the diameter of the second base ring, the second base ring is located inside the first base ring, and the first base ring and the second base ring are coaxial; several connecting blocks are located above the first base ring and the second base ring and connect the first base ring and the second base ring; the supporting block is connected above the connecting block, and the product to be improved in flatness is placed on the supporting block; the pressing plate is coaxially placed on the product, the I-beam supporting steel is placed on the pressing plate, and the weight block is placed above the I-beam supporting steel.
[0006] Furthermore, the connecting block is in an arc-shaped structure, one end of the bottom of the connecting block is welded to the first base ring, and the other end of the bottom of the connecting block is welded to the second base ring.
[0007] Furthermore, the number of the connection blocks is 12. The connection blocks are evenly distributed in a circle around the center of the first base ring and the second base ring.
[0008] Furthermore, the support block is in an arc-shaped structure, and two ends of the bottom of the support block are respectively welded to two adjacent connection blocks.
[0009] Furthermore, the number of the support blocks is 6, one support block is welded on every two connection blocks, and the distance between the support block and the outer end of the connection block is smaller than the distance between the support block and the inner end of the connection block.
[0010] The utility model has the following beneficial effects: the utility model provides a device for improving flatness after heat treatment, including: a first base ring, a second base ring, a connecting block, a supporting block, a pressing plate, an I-beam supporting steel and a load-bearing block; the device can solve the problem of poor flatness of the product after heat treatment, which provides great convenience for subsequent processing procedures, improves processing efficiency, and reduces personnel time and energy costs; it also ensures the uniformity of product quality, and does not have the problem of excessive difference on the same end face; at the same time, it reduces the cost of rework and avoids the time wasted in rework; and when the product has good flatness, the forging allowance of the product can be reduced accordingly, reducing the input of raw materials and saving costs from the source. In addition, the device has a low manufacturing cost, adopts a modular structure, is flexible and changeable, and can select different solutions according to actual conditions to achieve the best improvement effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0012] Figure 1 It is a cross-sectional schematic diagram of the device for improving flatness by pressing after heat treatment of the utility model;
[0013] Figure 2 It is a schematic diagram of the arrangement of the connecting blocks and the supporting blocks of the device for improving flatness after pressing after heat treatment of the utility model.
[0014] Illustration: 1-first base ring; 2-second base ring; 3-connecting block; 4-support block; 5-pressing plate; 6-I-beam support steel; 7-load-bearing block; 8-product. DETAILED DESCRIPTION
[0015] It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the following detailed descriptions are all illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those of ordinary skill in the art to which the present application belongs.
[0016] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0017] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in a variety of different forms and should not be interpreted as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for clarity, the thickness of the layers and regions is enlarged, and the same reference numerals are used to represent the same devices, so their description will be omitted.
[0018] See also Figure 1 to Figure 2 An embodiment of the utility model provides a device for improving flatness by pressing after heat treatment, comprising: a first base ring 1, a second base ring 2, a connecting block 3, a supporting block 4, a pressing plate 5, an I-beam supporting steel 6 and a load-bearing block 7.
[0019] The diameter of the first base ring 1 is larger than the diameter of the second base ring 2, the second base ring 2 is located inside the first base ring 1, and the first base ring 1 and the second base ring 2 are coaxial. The first base ring 1 and the second base ring 2 need to be placed on a flat ground when in use, and the coaxiality of the two base rings is controlled within the range of ±3mm.
[0020] In this embodiment, the diameter of the first base ring 1 is φ3660 mm, and the diameter of the second base ring 2 is φ1830 mm. The sizes of the first base ring 1 and the second base ring 2 are quite different, which can cover the pressing improvement work of most products. The heights of the first base ring 1 and the second base ring 2 are the same, which ensures the horizontal reference.
[0021] Several connecting blocks 3 are located above the first base ring 1 and the second base ring 2 and connect the first base ring 1 and the second base ring 2. Specifically, the connecting block 3 is an arc-shaped structure, one end of the bottom of the connecting block 3 is welded to the first base ring 1, and the other end of the bottom of the connecting block 3 is welded to the second base ring 2. In this embodiment, the number of connecting blocks 3 is 12. The connecting blocks 3 are evenly distributed in a circle around the center of the first base ring 1 and the second base ring 2. The force on the foundation platform is uniform, which prolongs the service life of the foundation platform.
[0022] The support block 4 is connected to the top of the connection block 3. In this embodiment, there are 6 support blocks 4, one support block 4 is welded to every two connection blocks 3, the distance between the support block 4 and the outer end of the connection block 3 is smaller than the distance between the support block 4 and the inner end of the connection block 3, the support block 4 is an arc-shaped structure, and the bottom ends of the support block 4 are respectively welded to two adjacent connection blocks 3. Six support blocks are evenly distributed between the 12 connection blocks, resulting in sufficient gaps between the support blocks, where the protrusions of the product end faces can be placed, thereby achieving a better pressing effect.
[0023] The basic platform is now ready. Use the KI 100Kress infrared level or the EASY-LASERE910 laser level to calibrate the entire basic platform.
[0024] The product 8 whose flatness is to be improved is placed on the support block 4. Specifically, the product end surface protrusion can be placed between the two support blocks by forklift according to the specific flatness of the product. The pressing plate 5 is coaxially placed on the product 8, and the coaxiality between the pressing plate and the product to be corrected is controlled within the range of ±3mm.
[0025] In this embodiment, the outer diameter of the pressing plate 5 is φ3300 mm, the wall thickness is 455 mm, and the height is 230 mm, which ensures that the product is subjected to uniform force when being pressed.
[0026] The I-beam support steel 6 is placed on the pressing plate 5. Specifically, three I-beam support steels 6 are placed according to the overall distribution of the poor flatness of the product, with two placed on both sides and one placed in the middle. The three I-beam support steels are used independently, so that the I-beam support steels can be placed in a targeted position where the flatness problem is greater, and pressure can be applied accurately to achieve a better pressing effect.
[0027] The load block 7 is placed on the I-beam support steel 6. Specifically, the load block 7 is placed on the three I-beam support steels by a forklift. The weight of the load block is selected according to the number and weight of the modified products, which will avoid the situation where the inner and outer diameters of the products are deformed due to the excessive weight of the load block.
[0028] The design of the base platform and the pressing plate ensures that the product is evenly stressed, which can not only improve the flatness, but also extend the service life of these devices. The design of the support block and the I-beam support steel takes into account the actual situation of the product. Through relevant calculations and targeted placement, the improvement effect of poor flatness can be maximized. There are multiple options for the load-bearing block. According to the number and weight of the products pressed each time, through relevant calculations, the deformation of the inner and outer diameters of the products is avoided.
[0029] This combination device is freely assembled, and each device can be made of scrapped products in the daily production process. This makes the overall finished product cost lower, and the finished product cost of replacing related devices is also lower. The overall device production cycle is short and can be completed on site. There is no transportation cost, which can meet a faster production rhythm.
[0030] From the above embodiments, it can be known that the device for improving flatness by pressing after heat treatment of the utility model can pick up the hot product with a forklift and place it on the calibrated basic platform, then place the product according to the actual situation, and then place the pressing plate, I-beam support steel and weight block on the product in sequence, and use the gravity of the weight block and the pressing plate to evenly distribute the pressure on the product. The temperature of the product after heat treatment is generally above 500°C, and the structure of the product after heat treatment has good toughness and plasticity. Combined with the pressing effect of the combined device, the entire pressing process continues until the product is naturally air-cooled to room temperature in the room. In this process, the flatness of the product will be significantly improved.
[0031] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0032] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example.
[0033] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A device for improving flatness by pressing after heat treatment, characterized in that: include: A first basic ring (1), a second basic ring (2), a connecting block (3), a supporting block (4), a pressing plate (5), an I-shaped supporting steel (6) and a load-bearing block (7); The diameter of the first base ring (1) is greater than the diameter of the second base ring (2); the second base ring (2) is located inside the first base ring (1); the first base ring (1) and the second base ring (2) are coaxial; a plurality of connecting blocks (3) are located above the first base ring (1) and the second base ring (2) and connect the first base ring (1) and the second base ring (2); the supporting block (4) is connected above the connecting block (3); the supporting block (4) is used to place a product (8) whose flatness is to be improved; the pressing plate (5) is coaxially placed on the product (8), the I-beam support steel (6) is placed on the pressing plate (5), and the load-bearing block (7) is placed above the I-beam support steel (6).
2. A device for improving flatness by pressing after heat treatment as claimed in claim 1, characterized in that: The connecting block (3) is in the form of an arc structure; one end of the bottom of the connecting block (3) is welded to the first base ring (1), and the other end of the bottom of the connecting block (3) is welded to the second base ring (2).
3. A device for improving flatness by pressing after heat treatment as claimed in claim 2, characterized in that: The number of the connection blocks (3) is 12; the connection blocks (3) are evenly distributed in a circular shape around the center of the first base ring (1) and the second base ring (2).
4. A device for improving flatness by pressing after heat treatment as claimed in claim 3, characterized in that: The support block (4) has an arc-shaped structure, and two ends of the bottom of the support block (4) are respectively welded to two adjacent connection blocks (3).
5. The device for improving flatness by pressing after heat treatment as claimed in claim 4, characterized in that: The number of the support blocks (4) is 6, one support block (4) is welded to every two connection blocks (3), and the distance between the support block (4) and the outer end of the connection block (3) is smaller than the distance between the support block (4) and the inner end of the connection block (3).