A grinding device for boiler pipe weld joints
By designing a grinding device for boiler pipe weld joints, components such as rotating plates, rotating rods, grinding blades, and gears are used to achieve grinding with the grinding blade close to the weld joint. Dust removal is achieved through components such as sliders, racks, scrapers, and grooves. This solves the problems of uneven weld joints and dust removal, and improves work efficiency and cleaning efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANTAI GUOYE METALLURGICAL WATER COOLED EQUIP CO LTD
- Filing Date
- 2025-02-27
- Publication Date
- 2026-06-02
AI Technical Summary
Existing boiler pipe welding equipment makes it difficult to grind the weld joint with a sharpening tool, resulting in uneven weld joints and a lack of effective dust removal function.
A grinding device for boiler pipe weld joints is designed. The device uses components such as rotating plate, rotating rod, grinding blade, and gear to work together to achieve grinding with the grinding blade close to the weld joint, and uses components such as slider, rack, scraper, and groove to achieve dust removal.
It achieves smooth grinding and dust removal at the welding joints, improves work efficiency, and saves time on cleaning and powder collection.
Smart Images

Figure CN224310255U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of boiler pipe technology, and in particular relates to a grinding device for weld joints of boiler pipes. Background Technology
[0002] A boiler is an energy conversion device that uses the heat energy released from fuel combustion or other heat energy to heat a working fluid such as water to certain parameters. During the production of boiler pipes, welding equipment is used to weld multiple sets of boiler pipes to ensure the required length.
[0003] According to a public announcement (publication number: CN 217750033 U), a welding device for boiler pipes includes a base plate, a positioning mechanism, and an auxiliary positioning mechanism; multiple columns are connected to the base plate, and an upper plate is connected to the other end of the columns, with welding components installed on the upper plate;
[0004] However, in the above design, the rotation of the rotating rod is difficult to achieve by the cooperation of components such as the base plate and the positioning mechanism. As a result, the grinding tool fixed on the circumference of the rotating rod cannot be close to the weld joint of the boiler pipe for grinding, and the weld joint of the boiler pipe cannot be ground flat. Therefore, we propose a grinding device for the weld joint of boiler pipe. Utility Model Content
[0005] The purpose of this invention is to provide a grinding device for boiler pipe weld joints. Through the cooperation of components such as a rotating plate, rotating rod, grinding blade, and gears, the rotating rod moves along with the rotating plate when it rotates. Because the gears mesh with the gear plate, the rotating rod can rotate under force as it follows the rotating plate. This rotation forces the grinding blade, fixed to the circumference of the rotating rod, to press against the boiler pipe weld joint for grinding, resulting in a smooth weld joint. This achieves the grinding effect, improves the work efficiency of the operators, and solves existing problems.
[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0007] This utility model relates to a grinding device for welded joints of boiler pipes, comprising a support leg and a support plate. The support plate is fixedly connected to the top of the support leg, and a housing is fixedly connected to the top of the support plate. A boiler pipe fixing assembly is provided on the top of the support plate, and a grinding device is provided on the top of the support plate. The grinding device includes a fixing plate, which is fixedly connected to the top of the support plate. A motor is fixedly inserted through the side of the fixing plate, and a rotating shaft is fixedly connected to the end of the output shaft of the motor.
[0008] Furthermore, a rotating plate is fixedly connected to the circumferential surface of the rotating shaft, a rotating rod extends through the side of the rotating plate, a grinding tool is fixedly connected to the circumferential surface of the rotating rod, a gear is fixedly connected to the circumferential surface of the rotating rod, and a gear plate is fixedly connected to the side of the fixed plate. This design is beneficial for forcing the rotating plate to rotate when the rotating shaft rotates.
[0009] Furthermore, the gear meshes with the gear disk, and the gear is located on the side of the rotating plate. This design is advantageous because when the gear rotates, it can drive the rotating rod to rotate.
[0010] Furthermore, a dust removal device is provided on the side of the fixing plate. The dust removal device includes a force-receiving wheel, which is fixedly connected to the circumferential surface of the rotating shaft. A sliding groove is provided on the side of the fixing plate. This design is beneficial to drive the force-receiving wheel to rotate when the rotating shaft rotates.
[0011] Furthermore, a slider is slidably connected to the inner wall of the groove, a rack is fixedly connected to the side of the slider, a scraper is fixedly connected to the bottom of the rack, and a groove is penetrating the top of the support plate. This design facilitates the slider to slide on the inner wall of the groove when it is subjected to force.
[0012] Furthermore, the force-receiving wheel meshes with the rack, the side section of the scraper is set in an L shape, and the force-receiving wheel is located on the side of the gear disk. This design is beneficial to force the rack to make linear motion when the force-receiving wheel rotates.
[0013] Furthermore, the support legs are arranged in several pairs, symmetrically arranged, and symmetrically arranged along the vertical central axis at the bottom of the support plate. Buttons are provided on the front side of the outer shell. This design helps the support legs to support the entire machine body.
[0014] This utility model has the following beneficial effects:
[0015] 1. This utility model utilizes the cooperation of components such as a rotating plate, a rotating rod, a grinding knife, and gears to achieve the following: when the rotating plate rotates, the rotating rod moves accordingly. Because the gears mesh with the gear plate, the rotating rod can rotate itself by force through the gears as it follows the rotating plate. When the rotating rod rotates, it forces the grinding knife fixed on the circumference of the rotating rod to press against the welded joint of the boiler pipe for grinding, making the welded joint of the boiler pipe smooth and achieving the grinding effect, thus improving the work efficiency of the workers.
[0016] 2. This utility model uses components such as slider, rack, scraper, and groove to work together to achieve the following: when the rack makes a reciprocating linear motion, the scraper fixed at the bottom of the rack also makes a reciprocating linear motion, scraping away the powder that adheres to the top of the support plate after grinding. This causes the scraper to stick to the top of the support plate and scrape the powder into the inside of the groove, allowing the powder to fall through the groove to the collection point designated by the staff. This achieves the effect of dust removal and facilitates the subsequent cleaning and collection by the staff, saving a lot of working time.
[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2 This is a three-dimensional cross-sectional view of the rotating shaft of this utility model;
[0021] Figure 3 For the present utility model Figure 2 A three-dimensional magnified structural diagram of A in the middle;
[0022] Figure 4 For the present utility model Figure 2 A three-dimensional magnified structural diagram of B.
[0023] The attached diagram lists the components represented by each number as follows:
[0024] 1. Support leg; 2. Support plate; 3. Outer shell; 4. Boiler pipe fixing assembly; 5. Grinding device; 51. Fixing plate; 52. Motor; 53. Rotating shaft; 54. Rotating plate; 55. Rotating rod; 56. Grinding knife; 57. Gear; 58. Gear plate; 6. Dust removal device; 61. Force wheel; 62. Slide groove; 63. Slider; 64. Rack; 65. Scraper; 66. Groove; 7. Button. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figure 1-4 This utility model is a grinding device for welded joints of boiler pipes, including a support leg 1 and a support plate 2. The support plate 2 is fixedly connected to the top of the support leg 1. A housing 3 is fixedly connected to the top of the support plate 2. A boiler pipe fixing assembly 4 is provided on the top of the support plate 2. A grinding device 5 is provided on the top of the support plate 2. The grinding device 5 includes a fixing plate 51, which is fixedly connected to the top of the support plate 2. A motor 52 is fixedly inserted through the side of the fixing plate 51. A rotating shaft 53 is fixedly connected to the end of the output shaft of the motor 52.
[0027] A rotating plate 54 is fixedly connected to the circumferential surface of the rotating shaft 53. A rotating rod 55 passes through the side of the rotating plate 54. A grinding tool 56 is fixedly connected to the circumferential surface of the rotating rod 55. A gear 57 is fixedly connected to the circumferential surface of the rotating rod 55. A gear disc 58 is fixedly connected to the side of the fixed plate 51. This design is beneficial to force the rotating plate 54 to rotate when the rotating shaft 53 rotates.
[0028] Gear 57 meshes with gear disk 58. Gear 57 is located on the side of rotating plate 54. This design is beneficial because when gear 57 rotates, it can drive rotating rod 55 to rotate.
[0029] A dust removal device 6 is provided on the side of the fixed plate 51. The dust removal device 6 includes a force-receiving wheel 61, which is fixedly connected to the circumferential surface of the rotating shaft 53. A sliding groove 62 is provided on the side of the fixed plate 51. This design is beneficial to drive the force-receiving wheel 61 to rotate when the rotating shaft 53 rotates.
[0030] A slider 63 is slidably connected to the inner wall of the slide groove 62. A rack 64 is fixedly connected to the side of the slider 63. A scraper 65 is fixedly connected to the bottom of the rack 64. A groove 66 passes through the top of the support plate 2. This design is conducive to the slider 63 sliding on the inner wall of the slide groove 62 when it is subjected to force.
[0031] The force-bearing wheel 61 meshes with the rack 64, and the side section of the scraper 65 is set in an L shape. The force-bearing wheel 61 is located on the side of the gear disk 58. This design is beneficial to force the rack 64 to make linear motion when the force-bearing wheel 61 rotates.
[0032] The support legs 1 are arranged in several pairs symmetrically and symmetrically along the vertical central axis of the bottom of the support plate 2. Buttons 7 are provided on the front side of the outer shell 3. This design helps the support legs 1 to support the entire body.
[0033] One specific application of this embodiment is as follows: First, when the worker needs to grind the welded joint of the boiler pipe, the worker needs to turn on the external power supply and control the forward and reverse rotation of the motor 52 through the button 7. When the motor 52 rotates, it forces the rotating shaft 53 to rotate, which drives the rotating plate 54 fixed on the circumferential surface of the rotating shaft 53 to rotate. When the rotating plate 54 rotates, the rotating rod 55 also moves. Since the gear 57 and the gear plate 58 mesh with each other, when the rotating rod 55 rotates with the rotating plate 54, it can be forced to rotate through the gear 57. When the rotating rod 55 rotates, it forces the grinding knife 56 fixed on the circumferential surface of the rotating rod 55 to press against the welded joint of the boiler pipe for grinding, so that the welded joint of the boiler pipe is ground flat, achieving the grinding effect and improving the work efficiency of the worker.
[0034] In the grinding device 5, since a lot of grinding powder is generated during the grinding process, in order to facilitate cleaning, when the rotating shaft 53 rotates, the force wheel 61 rotates, which forces the rack 64, which meshes with the force wheel 61, to reciprocate linearly through the slider 63 on the inner wall of the groove 62. When the rack 64 reciprocates linearly, the scraper 65 fixed at the bottom of the rack 64 also reciprocates linearly, scraping away the powder that adheres to the top of the support plate 2 after grinding, so that the scraper 65 sticks to the top of the support plate 2 and scrapes the powder into the inside of the groove 66, so that the powder falls through the groove 66 to the collection point designated by the staff, achieving the effect of dust removal, and facilitating the staff to clean and collect it later, saving a lot of working time.
[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A grinding device for welded joints of boiler pipes, comprising a support leg (1) and a support plate (2), characterized in that: The support plate (2) is fixedly connected to the top of the support leg (1), the top of the support plate (2) is fixedly connected to the outer shell (3), the top of the support plate (2) is provided with a boiler pipe fixing assembly (4), and the top of the support plate (2) is provided with a grinding device (5). The grinding device (5) includes a fixing plate (51), which is fixedly connected to the top of the support plate (2). A motor (52) is fixedly passed through the side of the fixing plate (51), and a rotating shaft (53) is fixedly connected to the end of the output shaft of the motor (52).
2. The boiler pipe weld joint grinding device according to claim 1, characterized in that, A rotating plate (54) is fixedly connected to the circumferential surface of the rotating shaft (53). A rotating rod (55) passes through the side of the rotating plate (54). A grinding tool (56) is fixedly connected to the circumferential surface of the rotating rod (55). A gear (57) is fixedly connected to the circumferential surface of the rotating rod (55). A gear disc (58) is fixedly connected to the side of the fixed plate (51).
3. The boiler pipe weld joint grinding device according to claim 2, characterized in that, The gear (57) meshes with the gear disk (58), and the gear (57) is located on the side of the rotating plate (54).
4. The boiler pipe weld joint grinding device according to claim 3, characterized in that, The side of the fixed plate (51) is provided with a dust removal device (6), which includes a force-receiving wheel (61). The force-receiving wheel (61) is fixedly connected to the circumferential surface of the rotating shaft (53), and a sliding groove (62) is provided on the side of the fixed plate (51).
5. A boiler pipe weld joint grinding device according to claim 4, characterized in that, The inner wall of the chute (62) is slidably connected to a slider (63), the side of the slider (63) is fixedly connected to a rack (64), the bottom of the rack (64) is fixedly connected to a scraper (65), and the top of the support plate (2) is through a groove (66).
6. A boiler pipe weld joint grinding device according to claim 5, characterized in that, The force-receiving wheel (61) meshes with the rack (64), the side section of the scraper (65) is set in an L shape, and the force-receiving wheel (61) is located on the side of the gear disc (58).
7. A boiler pipe weld joint grinding device according to claim 1, characterized in that, The support legs (1) are provided in several pairs, symmetrical in pairs, and symmetrical to each other along the vertical central axis of the bottom of the support plate (2). The outer shell (3) is provided with a button (7) on the front side.