Moving blade of induced draft fan

Abstract

The utility model provides an induced draft fan moving blade, and belongs to the technical field of induced draft fans. The moving blade of the induced draft fan comprises a connecting assembly and a fixing assembly, an impeller is arranged on one side of an induced draft fan body, the induced draft fan body drives the impeller and the blade to rotate, an elastic plate is arranged in a positioning seat, the blade is in sliding clamping connection with the positioning seat through the elastic plate, and when the surface of the blade is damaged, the blade can move by pushing the elastic plate; the blade can be taken down and replaced by a new blade by moving the elastic plate into the positioning seat and separating the elastic plate from the blade, the blade is inserted into the positioning seat through the same steps, then the elastic plate is loosened, the elastic plate can be clamped and fixed with the blade under the action of elastic force, and the blade can be disassembled and assembled. And the blades are convenient to disassemble and assemble in a clamping manner, and can be assembled and disassembled without a special tool, so that the blades are convenient to disassemble and assemble, and the practicability is improved.

Description

Technical Field

[0001] The present application relates to the field of induced draft fans, and in particular to a moving blade of an induced draft fan. Background Art

[0002] The induced draft fan is a device that generates negative pressure by rotating the impeller, and then extracts air from the equipment. It is often used in coke drying projects, such as an induced draft fan impeller and induced draft fan with Chinese patent application number CN202123175159.1, including a hub, blades and a connecting assembly, the blades and the hub are detachably connected through the connecting assembly, the outer surfaces of the hub, the blades and the connecting assembly are provided with a protective layer, the hub is disc-shaped, the number of blades includes multiple, and the connecting assembly corresponds to the number of blades one by one; the connecting assembly includes a first connecting member and a second connecting member, the first connecting member and the second connecting member are both long strip structures, the first connecting member and the second connecting member are both arranged on the hub, and the first connecting member and the second connecting member are opposite and spaced apart, so that a slot is formed between the first connecting member and the second connecting member, and a connecting portion matching the slot is provided at the bottom of the blade, and the connecting portion is arranged in the slot, so that the blade and the hub can be detachably connected. The induced draft fan impeller of the utility model can increase the service life of the impeller and the induced draft fan.

[0003] However, the above scheme still has certain defects: first, the blades are arranged between the hubs, and the blades and the hubs are connected by bolts. When the blades are damaged and replaced, special tools are required, which makes it inconvenient to disassemble and install the blades, thereby reducing practicality. Utility Model Content

[0004] In order to remedy the above deficiencies, the present application provides an induced draft motor blade, aiming to improve the problem in the related technology that when the blade is damaged and replaced, special tools need to be used, which makes it inconvenient to disassemble and install the blade, thereby reducing practicality.

[0005] An embodiment of the present application provides an induced draft rotor blade including a connecting component and a fixing component.

[0006] The connecting assembly includes an induced draft fan body and an impeller, wherein the impeller is arranged on one side of the induced draft fan body, and the fixing assembly includes a positioning seat, an elastic plate and blades, wherein a plurality of positioning seats are correspondingly arranged on one side of the impeller, the elastic plate is arranged inside the positioning seat, and the blades are slidably engaged with the positioning seat through the elastic plate.

[0007] In a specific embodiment, sliding grooves are arranged on both sides of the positioning seat.

[0008] In the above implementation process, slide grooves are provided on both sides of the positioning seat, and the slide grooves can play a role of limiting.

[0009] In a specific embodiment, a plurality of through holes are provided on one side of the positioning seat.

[0010] In the above implementation process, a plurality of through holes are provided on one side of the positioning seat, and the through holes can play a connecting role.

[0011] In a specific embodiment, a limiting groove is provided on one side of the positioning seat, and the blade is slidably connected to the limiting groove.

[0012] In the above implementation process, a limiting groove is provided on one side of the positioning seat, and the limiting groove can be provided to limit the blade.

[0013] In a specific implementation, the elastic plate includes a spring, a movable plate and a protrusion, the movable plate is fixedly connected to the spring, a plurality of protrusions are arranged on one side of the movable plate, and the protrusions are slidably connected to the through holes.

[0014] In the above implementation process, the spring can play the role of elastic force, and the protrusion can play the role of limiting connection.

[0015] In a specific embodiment, connecting blocks are provided on both sides of the movable plate, and the connecting blocks are slidably connected to the sliding grooves.

[0016] In the above implementation process, connection blocks are provided on both sides of the movable plate, and the connection blocks can play a connecting role.

[0017] In a specific embodiment, a push plate is provided at one end of the connection block.

[0018] In the above implementation process, a push plate is provided at one end of the connecting block, and the push plate can facilitate pushing.

[0019] In a specific implementation manner, a plurality of limiting holes are provided on both sides of the blade, and the protrusions are slidably connected to the limiting holes.

[0020] In the above implementation process, the movable plate can be moved by pushing the push plate, and the spring can be squeezed by the movable plate. Then the protrusion is separated from the limiting hole, the blade can be removed and replaced with a new blade, and the blade is inserted into the positioning seat in the same way as above. Then the push plate is loosened, so that the protrusion can be inserted into the limiting hole under the action of elastic force and fixed with the blade, so that the blade can be disassembled and assembled.

[0021] Compared with the prior art, the beneficial effects of the present application are as follows: the impeller and blades are driven to rotate by the induced draft fan body. When the surface of the blade is damaged, the elastic plate can be pushed to move so that the elastic plate moves toward the inside of the positioning seat and detaches from the blade. The blade can be removed and replaced with a new one. The blade is inserted into the positioning seat in the same way as above, and then the elastic plate is loosened so that the elastic plate can be engaged and fixed with the blade under the action of elastic force. The blade can be disassembled and assembled. The clamping method is convenient for disassembly and installation of the blade, and installation and disassembly can be completed without the use of special tools, thereby facilitating the disassembly and installation of the blade, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a schematic diagram of the structure of a draft-inducing moving blade from a first perspective provided in an embodiment of the present application;

[0024] Figure 2 A schematic diagram of the positioning seat structure provided in the embodiment of the present application;

[0025] Figure 3 A schematic diagram of the elastic plate structure provided in the embodiment of the present application;

[0026] Figure 4 A schematic diagram of the blade structure provided for an embodiment of the present application.

[0027] In the figure: 100-connecting assembly; 110-induced draft fan body; 120-impeller; 200-fixing assembly; 210-positioning seat; 211-slide groove; 212-through hole; 213-limiting groove; 220-elastic plate; 221-spring; 222-movable plate; 2221-connecting block; 2222-push plate; 223-bump; 230-blade; 231-limiting hole. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0029] In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] See also Figure 1-4 The present application provides an induced draft rotor blade including a connecting assembly 100 and a fixing assembly 200. The connecting assembly 100 can play a connecting role, and the fixing assembly 200 can facilitate disassembly and installation.

[0031] See also Figure 1 The connection assembly 100 includes an induced draft fan body 110 and an impeller 120. The impeller 120 is disposed on one side of the induced draft fan body 110, and the impeller 120 can be driven to rotate by the induced draft fan body 110.

[0032] See also Figure 1-4 The fixing assembly 200 includes a positioning seat 210, an elastic plate 220 and a blade 230. The positioning seat 210 is arranged in a plurality of positions on one side of the impeller 120. The elastic plate 220 is arranged inside the positioning seat 210. The blade 230 is slidably connected with the positioning seat 210 through the elastic plate 220. Slide grooves 211 are arranged on both sides of the positioning seat 210. The slide grooves 211 can play a limiting role. A plurality of through holes 212 are arranged on one side of the positioning seat 210. The through holes 212 can play a connecting role. A limiting groove 213 is arranged on one side of the positioning seat 210. The blade 230 is slidably connected with the limiting groove 213. The limiting groove 213 can limit the blade 230.

[0033] In some specific embodiments, the elastic plate 220 includes a spring 221, a movable plate 222 and a protrusion 223. The movable plate 222 is fixedly connected to the spring 221. Several protrusions 223 are arranged on one side of the movable plate 222. The protrusion 223 is slidably connected to the through hole 212. The spring 221 can play a role of elastic force, and the protrusion 223 can play a role of limiting connection. Connecting blocks 2221 are arranged on both sides of the movable plate 222. The connecting blocks 2221 are slidably connected to the slide groove 211. The setting of the connecting blocks 2221 can play a connecting role. A push plate 2222 is arranged at one end of the connecting block 2221. The setting of the push plate 2222 can facilitate pushing.

[0034] In some specific embodiments, a plurality of limiting holes 231 are provided on both sides of the blade 230, and the protrusion 223 is slidably connected to the limiting hole 231. The movable plate 222 can be moved by pushing the push plate 2222, and the spring 221 can be squeezed by the movable plate 222. Then the protrusion 223 is separated from the limiting hole 231, and the blade 230 can be removed and replaced with a new blade 230. The blade 230 is inserted into the interior of the positioning seat 210 in the same manner as above, and then the push plate 2222 is loosened, so that the protrusion 223 can be inserted into the interior of the limiting hole 231 under the action of the elastic force, and be engaged and fixed with the blade 230, so that the blade 230 can be disassembled and assembled.

[0035] The working principle of the induced draft moving blade is as follows: the induced draft fan body 110 drives the impeller 120 and the blade 230 to rotate. When the surface of the blade 230 is damaged, the movable plate 222 can be moved by pushing the push plate 2222, and the spring 221 can be squeezed by the movable plate 222. Then the protrusion 223 is separated from the limiting hole 231, and the blade 230 can be removed and replaced with a new blade 230. The blade 230 is inserted into the positioning seat 210 in the same way as above, and then the push plate 2222 is loosened, so that the protrusion 223 can be inserted into the limiting hole 231 under the action of the elastic force, and is fixed with the blade 230. The blade 230 can be disassembled and assembled. The clamping method is convenient for disassembly and installation of the blade 230, and the installation and disassembly can be completed without the use of special tools, thereby facilitating the disassembly and installation of the blade 230, thereby improving practicality.

[0036] It should be noted that the specific model and specifications of the induced draft fan body 110 need to be selected and determined based on the actual specifications of the device, and the specific selection and calculation method adopts the existing technology in the field, so it will not be described in detail.

[0037] The power supply and principle of the induced draft fan body 110 are clear to those skilled in the art and will not be described in detail here.

[0038] The above description is only an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0039] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A draft moving blade, characterized in that: include A connection assembly (100), the connection assembly (100) comprising an induced draft fan body (110) and an impeller (120), the impeller (120) being arranged on one side of the induced draft fan body (110); A fixing assembly (200), the fixing assembly (200) comprising a positioning seat (210), an elastic plate (220) and a blade (230), wherein a plurality of the positioning seats (210) are arranged corresponding to one side of the impeller (120), the elastic plate (220) is arranged inside the positioning seat (210), and the blade (230) is slidably engaged with the positioning seat (210) via the elastic plate (220).

2. The induced draft rotor blade according to claim 1, characterized in that: Slide grooves (211) are arranged on both sides of the positioning seat (210).

3. The induced draft rotor blade according to claim 2, characterized in that: A plurality of through holes (212) are provided on one side of the positioning seat (210).

4. The induced draft rotor blade according to claim 1, characterized in that: A limiting groove (213) is provided on one side of the positioning seat (210), and the blade (230) is slidably connected to the limiting groove (213).

5. The induced draft rotor blade according to claim 3, characterized in that: The elastic plate (220) comprises a spring (221), a movable plate (222) and a protrusion (223); the movable plate (222) is fixedly connected to the spring (221); a plurality of protrusions (223) are arranged on one side of the movable plate (222); and the protrusions (223) are slidably connected to the through hole (212).

6. The induced draft rotor blade according to claim 5, characterized in that: Connecting blocks (2221) are provided on both sides of the movable plate (222), and the connecting blocks (2221) are slidably connected to the sliding grooves (211).

7. The induced draft rotor blade according to claim 6, characterized in that: A push plate (2222) is provided at one end of the connection block (2221).

8. The induced draft rotor blade according to claim 7, characterized in that: A plurality of limiting holes (231) are provided on both sides of the blade (230), and the protrusion (223) is slidably connected to the limiting holes (231).

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