Simple disassembly and assembly tool for fan impeller

Abstract

The utility model relates to the technical field of fan impeller maintenance, and discloses a simple fan impeller disassembling and assembling tool which comprises an impeller, the impeller is detachably installed on a base through a sealing connecting assembly, a volute is fixedly installed on the side face of the base, and the volute is fixedly installed on the side face of the base. A wind shell front plate is detachably installed on the front face of the volute, and a wind shell back plate is detachably installed on the back face of the volute. According to the simple disassembly and assembly tool for the fan impeller, the three long screws are used for replacing original impeller installation bolts to achieve impeller assembly, interference installation between the center of the impeller and a motor shaft is not needed when the impeller is disassembled and assembled, stress on the connecting position between the impeller and the motor shaft is more balanced when the impeller rotates at a high speed, deformation of the impeller is avoided, and the service life of the impeller is prolonged. The impeller has good detachability in both assembly and replacement, the mounting and dismounting difficulty is reduced on the premise of ensuring stable assembly and use of the impeller, and the maintenance efficiency of the impeller is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan impeller maintenance technical field, concretely is a kind of fan impeller simple dismounting tooling. BACKGROUND

[0002] When installing between fan impeller and the output shaft of motor, the inner diameter of impeller and the outer diameter of motor shaft are generally designed as excessive fit, so that there is enough friction between the two, to ensure the stability when installing, if the gap is small, it is difficult to push the impeller into the shaft position when installing, the gap is large, vibration problem is prone to occur when fan is running, but with the increase of use time, the fan impeller and the shaft form more closely "adhesion" between, so that the difficulty of dismounting impeller increases.

[0003] In prior art, when installing fan impeller to motor shaft, the operator generally uses rubber hammer to knock up and down, left and right corresponding points to make impeller reach specified design position little by little, this way is slow, and the center line of impeller and shaft may not be completely consistent, so that impeller inner hole and shaft are prone to knock, secondly, in the case that impeller cannot be removed on site, only destructive removal can be selected, that is, cutting open hub, which is prone to cause the maintenance cost of equipment to increase, and is not suitable for industrial production demand, in view of this, we propose a kind of fan impeller simple dismounting tooling. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of fan impeller simple dismounting tooling to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of fan impeller simple dismounting tooling, including impeller, the impeller is detachably installed on base by sealing connection component, the side surface of the base is fixedly installed with volute, the front of the volute is detachably installed with wind shell front plate, the back of the volute is detachably installed with wind shell back plate;

[0006] The sealing connection assembly comprises an inlet front plate, the inlet front plate is detachably installed on the outer wall of the volute, an inlet flange is fixedly installed at the center of the inlet front plate, an axial seal front side sealing ring is fixedly installed on the outer wall of the inlet flange close to the outer wall of the volute, an inlet spinal canal is fixedly installed on the arc-shaped outer wall of the axial seal front side sealing ring, a reflux pipe outlet section is fixedly connected to the end of the inlet spinal canal, an axial seal rear side sealing ring is fixedly installed at the shaft center of the wind shell back plate, a reflux pipe reflux section is fixedly installed on the inner wall of the axial seal rear side sealing ring, a reflux pipe hose is fixedly connected between the end of the reflux pipe reflux section and the end of the reflux pipe outlet section, a motor assembly flange is fixedly installed on the side of the axial seal rear side sealing ring away from the volute, a sealing bin is arranged at the center of the motor assembly flange, and the inlet flange is detachably connected to the motor assembly flange through long screws.

[0007] Preferably, the inside of the volute is hollow to facilitate the installation of the sealing connection assembly and the impeller.

[0008] Preferably, the inlet spinal canal, the reflux pipe outlet section, the reflux pipe hose and the reflux pipe reflux section are communicated with each other to form a reflux channel.

[0009] Preferably, the motor shaft is inserted into the volute through the cavity at the center of the motor assembly flange, and the axial seal rear side sealing ring and the axial seal front side sealing ring are respectively sleeved between the motor shaft and the motor assembly flange and between the motor shaft and the inlet flange.

[0010] Preferably, the axial seal front side sealing ring and the axial seal rear side sealing ring are respectively matched with the inlet flange and the motor assembly flange in size to ensure the sealing performance of the motor shaft at the outer surface during installation.

[0011] Preferably, the number of long screws is three, and the three groups of long screws are evenly distributed in a circumferential array on the outside of the sealing bin.

[0012] Preferably, the sealing bin is arranged on the outside of the end of the motor shaft close to the inlet flange, and the design of the sealing bin enables the connection end of the motor shaft to have a secondary sealing effect, thereby avoiding liquid leakage at the motor shaft.

[0013] Compared with the prior art, the fan impeller simple dismounting tool has the following beneficial effects:

[0014] 1. The fan impeller simple dismounting tool, through using three long screw rods instead of original impeller mounting bolts to realize impeller assembly, makes the center of the impeller not need to realize interference fit installation with the motor shaft during dismounting, makes the connection between the impeller and the motor shaft more balanced under high speed rotation, avoids deformation, has good detachability whether assembly or replacement, guarantees stable impeller assembly and use, reduces installation and dismounting difficulty, improves impeller maintenance efficiency.

[0015] 2. The fan impeller simple dismounting tool, through mutual connection between the inlet vertebra, the reflux pipe outlet section, the reflux pipe hose and the reflux pipe reflux section to form a reflux channel, effectively seals the connection between the motor shaft and the impeller through the shaft seal rear sealing ring and the shaft seal front sealing ring for installing the inlet vertebra, and realizes heat dissipation of the motor shaft and the impeller connection through the reflux channel, thereby making up the defect of insufficient or no sealing of the front end of the flange motor, and effectively limiting the temperature of the shaft seal. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic view of the main structure of the utility model;

[0017] Figure 2 It is a schematic view of the volute structure of the utility model;

[0018] Figure 3 It is a schematic view of the utility model Figure 3 It is an enlarged schematic view of area A;

[0019] Figure 4 It is an internal explosion schematic view of the volute of the utility model.

[0020] In the drawing: 1, base; 2, volute; 21, front plate of air casing; 22, back plate of air casing; 3, sealing connection assembly; 31, inlet front plate; 32, reflux pipe outlet section; 33, inlet vertebra; 34, inlet flange; 35, shaft seal rear sealing ring; 36, reflux pipe reflux section; 37, reflux pipe hose; 38, motor assembly flange; 341, long screw rod; 342, sealing bin; 4, impeller. DETAILED DESCRIPTION

[0021] As Figures 1-4As shown, the utility model provides a technical scheme: a fan impeller simple dismounting frock, including impeller 4, impeller 4 is detachably installed on base 1 through sealing connection component 3, the side surface fixed mounting of base 1 has volute 2, the front detachable mounting of volute 2 has wind shell front plate 21, the back detachable mounting of volute 2 has wind shell back plate 22, sealing connection component 3 includes import front plate 31, import flange 34, import vertebral canal 33, backflow pipe outlet section 32, shaft seal rear side sealing ring 35, backflow pipe backflow section 36, backflow pipe hose 37, motor assembly flange 38 and sealing bin 342 and long screw 341.

[0022] In an embodiment of the utility model, import front plate 31 detachable installation is on the outer wall of volute 2, the center of import front plate 31 is fixedly installed with import flange 34, and the outer wall on the side close to volute 2 of import flange 34 is fixedly installed with shaft seal front side sealing ring, and the arc outer wall of shaft seal front side sealing ring is fixedly installed with import vertebral canal 33, and the end of import vertebral canal 33 is fixedly connected with backflow pipe outlet section 32, and the axis of wind shell back plate 22 is fixedly installed with shaft seal rear side sealing ring 35, and the inner wall of shaft seal rear side sealing ring 35 is fixedly installed with backflow pipe backflow section 36, and the end between backflow pipe backflow section 36 and backflow pipe outlet section 32 is fixedly connected with backflow pipe hose 37, and the side of shaft seal rear side sealing ring 35 away from volute 2 is fixedly installed with motor assembly flange 38, and the center of motor assembly flange 38 is provided with sealing bin 342, and import flange 34 is detachably connected on motor assembly flange 38 through long screw 341.

[0023] Further, the inside of volute 2 is hollow to facilitate the installation of sealing connection component 3 and impeller 4, and since wind shell front plate 21 is detachable, impeller 4 can be disassembled in advance when assembling to provide more space for the installation and maintenance of impeller 4, and import vertebral canal 33, backflow pipe outlet section 32, backflow pipe hose 37 and backflow pipe backflow section 36 are interconnected to form a backflow channel, and backflow pipe hose 37 is in the inner cavity of base 1, so that the flow of air or water can be cooled by backflow pipe hose 37 to prevent the temperature of the motor shaft connection from rising sharply with the increase of use time.

[0024] Meanwhile, the sizes of the front shaft seal ring and the rear shaft seal ring 35 are matched with the inlet flange 34 and the motor assembly flange 38 respectively, so as to ensure the sealing of the motor shaft at the outer surface during installation, and meanwhile, the motor shaft is inserted into the volute 2 through the cavity at the center of the motor assembly flange 38, and the rear shaft seal ring 35 and the front shaft seal ring are respectively sleeved between the motor shaft and the motor assembly flange 38 and between the motor shaft and the inlet flange 34, specifically, the connection between the motor shaft and the impeller 4 is effectively sealed by the rear shaft seal ring 35 and the front shaft seal ring of the inlet vertebra 33 for installation, and the heat dissipation of the connection between the motor shaft and the impeller 4 is realized through the above-mentioned backflow channel, so as to make up for the defects of insufficient sealing or no sealing at the front end of the flange motor, and effectively limit the temperature of the shaft seal.

[0025] In addition, the number of long screws 341 is three groups, and the three groups of long screws 341 are uniformly distributed in a circumferential array outside the sealing bin 342, the sealing bin 342 is arranged outside the end of the motor shaft close to the inlet flange 34, and through the design of the sealing bin 342, the connection end of the motor shaft has the effect of secondary sealing, avoiding the leakage of the motor shaft, affecting the normal and safe use of the motor, and through the design of the long screw 341, the connection between the impeller 4 and the motor shaft is more balanced when the impeller 4 rotates at high speed, avoiding deformation, and has good detachability whether it is assembled or replaced, ensuring the maintenance efficiency.

[0026] In the utility model, in use, the fan shell front plate 21 is opened, then the long screw 341 is unscrewed through a tool, until the locking bolt on the surface of the long screw 341 is unscrewed, and the impeller 4 is removed along the horizontal direction, so that the quick disassembly and assembly of the impeller 4 is realized, through the design of the long screw 341, the center of the impeller 4 does not need to be interference fitted with the motor shaft during disassembly and assembly, ensuring that the impeller 4 is assembled and used stably, reducing the installation and disassembly difficulty, and improving the maintenance efficiency of the impeller 4.

[0027] The above is a detailed description of the utility model, but some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, the modifications or improvements without departing from the spirit of the utility model are within the protection scope of the utility model.

Claims

1. A simple assembly and disassembly tool for a wind turbine impeller, comprising an impeller (4), characterized in that: The impeller (4) is detachably mounted on the base (1) via a sealing connection assembly (3). A volute (2) is fixedly mounted on the side of the base (1). A front fan plate (21) is detachably mounted on the front of the volute (2), and a back fan plate (22) is detachably mounted on the back of the volute (2). The sealing connection assembly (3) includes an inlet front plate (31), which is detachably mounted on the outer wall of the volute (2). An inlet flange (34) is fixedly mounted at the center of the inlet front plate (31). A shaft seal front sealing ring is fixedly mounted on the outer wall of the inlet flange (34) near the volute (2). An inlet conical tube (33) is fixedly mounted on the arc-shaped outer wall of the shaft seal front sealing ring. A return pipe outlet section (32) is fixedly connected to the end of the inlet conical tube (33). A shaft is fixedly mounted at the center of the air casing back plate (22). The rear sealing ring (35) of the shaft seal is fixedly installed with a return pipe return section (36) on the inner wall of the rear sealing ring (35). A return pipe hose (37) is fixedly connected between the end of the return pipe return section (36) and the end of the return pipe outlet section (32). A motor assembly flange (38) is fixedly installed on the side of the rear sealing ring (35) away from the volute (2). A sealing chamber (342) is provided at the center of the motor assembly flange (38). The inlet flange (34) is detachably connected to the motor assembly flange (38) by a long screw (341).

2. The simplified assembly and disassembly tooling for a wind turbine impeller according to claim 1, characterized in that: The interior of the volute (2) is hollow.

3. The simplified assembly and disassembly tooling for a wind turbine impeller according to claim 1, characterized in that: The inlet spinal canal (33), the outlet section of the reflux tube (32), the flexible reflux tube (37), and the reflux section of the reflux tube (36) are interconnected to form a reflux channel.

4. The simplified assembly and disassembly tooling for a wind turbine impeller according to claim 1, characterized in that: The motor shaft is inserted into the volute (2) through the cavity at the center of the motor assembly flange (38). At the same time, the rear sealing ring (35) and the front sealing ring of the shaft seal are respectively fitted between the motor shaft and the motor assembly flange (38) and between the motor shaft and the inlet flange (34).

5. The simplified assembly and disassembly tooling for a wind turbine impeller according to claim 1, characterized in that: The sizes of the front sealing ring and the rear sealing ring (35) of the shaft seal are adapted to the inlet flange (34) and the motor assembly flange (38), respectively.

6. The simplified assembly and disassembly tool for a wind turbine impeller according to claim 1, characterized in that: The number of the long screws (341) is set in three sets, and the three sets of long screws (341) are evenly distributed in a circumferential array on the outside of the sealed chamber (342).

7. The simplified assembly and disassembly tooling for a wind turbine impeller according to claim 1, characterized in that: The sealing chamber (342) is located on the outer side of the motor shaft near the inlet flange (34).

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