Impeller for centrifugal fan

Abstract

The utility model provides an impeller for a centrifugal fan, which comprises a centrifugal impeller component detachably arranged on a rotating shaft of the fan, the centrifugal impeller component comprises a first mounting disc clamped on the rotating shaft, a mounting cylinder is arranged on the axis of the first mounting disc, an impeller blade group is embedded on the first mounting disc, and the impeller blade group is arranged on the first mounting disc. The impeller blade set comprises a fixing cylinder detachably arranged on the upper portion of the mounting cylinder, a plurality of blades are evenly distributed on the outer side wall of the fixing cylinder, and a second mounting disc is arranged on the outer sides of the blades. And moreover, the impeller blade group can be quickly and efficiently disassembled and assembled through the detachably arranged fixing cylinder, so that the impeller blade group can be conveniently disassembled, maintained and cleaned, and the operation is more convenient and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of impeller equipment, in particular to an impeller for a centrifugal fan. Background Art

[0002] The working principle of a centrifugal blower is mainly to utilize several rotating impellers to do work on the gas, increase the kinetic energy of the gas, and then through centrifugal action and a pressure-increasing process, increase the pressure of the gas to achieve a certain air volume and air pressure, so as to achieve the technical effect of high-pressure air supply with a large flow rate. The centrifugal blower has good high-pressure air supply effect with a large flow rate.

[0003] During the use of traditional impellers, they are often easily damaged by hard granular impurities inhaled by the centrifugal fan due to lack of protection, which greatly reduces their service life. And the installation method usually relies on interference fit, resulting in troublesome disassembly and installation when the impeller is damaged or needs to be cleaned. Content of the Utility Model

[0004] In view of this, the utility model provides an impeller for a centrifugal fan, which can realize effective protection of the impeller blade group through the cooperation of the second mounting plate and the first mounting plate, and can realize rapid and efficient disassembly and assembly of the impeller blade group through the detachably arranged fixing cylinder, facilitating disassembly, maintenance and cleaning operations, with more convenient and efficient operation, solving the problems that traditional impellers are often easily damaged by hard granular impurities inhaled by the centrifugal fan during use, greatly reducing their service life, and the installation method usually relies on interference fit, resulting in troublesome disassembly and installation when the impeller is damaged or needs to be cleaned.

[0005] To solve the above technical problems, the utility model provides an impeller for a centrifugal fan, including a centrifugal impeller assembly detachably arranged on the rotating shaft of the fan. The centrifugal impeller assembly includes a first mounting plate clamped on the rotating shaft. An installation cylinder is arranged at the axis center of the first mounting plate. An impeller blade group is embedded on the first mounting plate. The impeller blade group includes a fixing cylinder detachably arranged on the upper part of the installation cylinder. A plurality of blades are evenly arranged on the outer side wall of the fixing cylinder. A second mounting plate is arranged on the outer side of the plurality of blades. The utility model can realize effective protection of the impeller blade group through the cooperation of the second mounting plate and the first mounting plate, and can realize rapid and efficient disassembly and assembly of the impeller blade group through the detachably arranged fixing cylinder, facilitating disassembly, maintenance and cleaning operations, with more convenient and efficient operation, solving the problems that traditional impellers are often easily damaged by hard granular impurities inhaled by the centrifugal fan during use, greatly reducing their service life, and the installation method usually relies on interference fit, resulting in troublesome disassembly and installation when the impeller is damaged or needs to be cleaned.

[0006] A plurality of clamping bars are evenly arranged on both the upper and lower sides of each blade, and clamping grooves corresponding to the clamping bars one by one are formed on both the first mounting plate and the second mounting plate.

[0007] The second mounting plate is of a concave structure with a higher outer height than the inner height.

[0008] A connecting plate is arranged between two of the blades, and a plurality of threaded holes are formed in the connecting plate.

[0009] There are two connecting plates, which are symmetrically arranged on the outer side of the fixed cylinder.

[0010] The fixed cylinder is detachably arranged on the mounting cylinder through a screw rod, and an internal hexagonal hole is formed at the end of the screw rod.

[0011] A guiding strip is arranged on the outer side wall of the rotating shaft, guiding grooves adapted to the guiding strip are formed on the axes of the first mounting plate, the mounting cylinder and the fixed cylinder, an external thread is arranged at the end of the rotating shaft, and the second mounting plate is fixed to the rotating shaft through a locking nut.

[0012] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0013] 1. The utility model can realize the effective protection operation of the impeller blade group through the cooperation of the second mounting plate and the first mounting plate, and can realize the rapid and efficient disassembly and assembly operation of the impeller blade group through the detachably arranged fixed cylinder, which is convenient for disassembly, maintenance and cleaning operations, and the operation is more convenient and efficient. It solves the problem that in the process of using traditional impellers, due to the lack of protection, they are often easily damaged by particulate hard impurities sucked in by the centrifugal fan, greatly reducing their service life, and the installation method usually relies on interference fit, resulting in troublesome disassembly and installation when the impeller is damaged or needs to be cleaned.

[0014] 2. The utility model can realize the rapid clamping and fixing operation of the first mounting plate, the impeller blade group and the second mounting plate through the cooperation of the clamping bars on the blades and the corresponding clamping grooves on the first mounting plate and the second mounting plate, greatly improving the installation efficiency and installation accuracy.

[0015] 3. The utility model can insert an internal hexagonal bolt into the internal hexagonal hole, and then rotate the screw rod counterclockwise until it is screwed out of the fixed cylinder, and then the fixed cylinder on the impeller blade group can be easily removed from the mounting cylinder, and the operation is more convenient.

[0016] 4. The utility model can realize firmly locking the second mounting plate above the impeller blade group through the threaded connection of the locking nut and the rotating shaft, greatly increasing the stability of the installation of the centrifugal impeller assembly, and the operation is more convenient and efficient. Description of the Drawings

[0017] Figure 1 This is a schematic structural view of an impeller for a centrifugal fan of the present utility model;

[0018] Figure 2 For the present utility model Figure 1 An enlarged view of part A in it;

[0019] Figure 3 This is a front view of an impeller for a centrifugal fan of the present utility model.

[0020] Explanation of reference numerals in the drawings: 100, centrifugal impeller assembly; 110, first mounting disc; 111, mounting cylinder; 112, card slot; 113, guiding slot; 120, impeller blade group; 121, fixed cylinder; 122, blade; 123, connecting plate; 124, threaded hole; 130, second mounting disc; 140, screw; 141, internal hexagonal hole. Specific embodiments

[0021] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the following will combine the accompanying drawings of the embodiments of the present utility model Figures 1-3 to clearly and completely describe the technical solutions of the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the described embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art belong to the scope protected by the present utility model.

[0022] As Figures 1-3 shown: This embodiment provides an impeller for a centrifugal fan, including a centrifugal impeller assembly 100 detachably arranged on the rotating shaft of the fan. The centrifugal impeller assembly 100 includes a first mounting disc 110 clamped on the rotating shaft. An installation cylinder 111 is arranged at the axis center of the first mounting disc 110. An impeller blade group 120 is embedded on the first mounting disc 110. The impeller blade group 120 includes a fixed cylinder 121 detachably arranged on the upper part of the installation cylinder 111. A plurality of blades 122 are evenly arranged on the outer side wall of the fixed cylinder 121. A second mounting disc 130 is arranged on the outer side of the plurality of blades 122. The present utility model can realize the effective protection operation of the impeller blade group 120 through the cooperation of the second mounting disc 130 and the first mounting disc 110, and can realize the rapid and efficient disassembly and assembly operations of the impeller blade group 120 through the detachably arranged fixed cylinder 121, which is convenient for disassembly, repair and cleaning operations, and the operation is more convenient and efficient. It solves the problem that in the process of using traditional impellers, due to the lack of protection, they are often easily damaged by particulate hard impurities inhaled by the centrifugal fan, greatly reducing their service life, and the installation method usually relies on interference fit, resulting in trouble in both disassembly and installation when the impeller is damaged or needs to be cleaned.

[0023] According to an embodiment of the present utility model, asFigures 1-3 As shown, a plurality of clamping bars are evenly arranged on the upper and lower sides of each blade 122 respectively. Slots 112 corresponding to the clamping bars one by one are opened on both the first mounting disc 110 and the second mounting disc 130. The present utility model can realize the quick clamping and fixing operation of the first mounting disc 110, the impeller blade group 120 and the second mounting disc 130 through the cooperation of the clamping bars on the blade 122 and the corresponding slots 112 on the first mounting disc 110 and the second mounting disc 130, greatly improving the installation efficiency and installation accuracy.

[0024] According to another embodiment of the present utility model, as Figure 1 and Figure 2 shown, the second mounting disc 130 is an inwardly concave structure with a higher outer height than the inner height. The present utility model can form a vortex through this inwardly concave design method in cooperation with the rotatably arranged blade 122, facilitating the quick suction of wind and improving the wind force of the air supply to a certain extent.

[0025] A connecting plate 123 is arranged between two of the blades 122. There are two connecting plates 123, which are symmetrically arranged on the outer side of the fixed cylinder 121. A plurality of threaded holes 124 are opened on the connecting plate 123. The purpose is to facilitate the fixation with the connecting plate 123 through a threaded puller, and then the impeller blade group 120 can be easily removed from the first mounting disc 110 through the connecting plate 123, which is more convenient and labor-saving.

[0026] According to another embodiment of the present utility model, as Figure 1 and Figure 3 shown, the fixed cylinder 121 is detachably arranged on the mounting cylinder 111 through a screw 140. An internal hexagonal hole 141 is opened at the end of the screw 140. The present utility model can insert an internal hexagonal bolt into the internal hexagonal hole 141, and then rotate the screw 140 counterclockwise until it is screwed out of the fixed cylinder 121, and then the fixed cylinder 121 on the impeller blade group 120 can be easily removed from the mounting cylinder 111, and the operation is more convenient.

[0027] A guiding strip is arranged on the outer side wall of the rotating shaft. Guiding grooves 113 adapted to the guiding strip are opened on the axes of the first mounting disc 110, the mounting cylinder 111 and the fixed cylinder 121. External threads are provided at the end of the rotating shaft. The second mounting disc 130 is fixed to the rotating shaft through a locking nut. The present utility model can realize firmly locking the second mounting disc 130 above the impeller blade group 120 through the threaded connection of the locking nut and the rotating shaft, greatly increasing the stability performance of the installation of the centrifugal impeller assembly 100, and the operation is more convenient and efficient.

[0028] The usage method of the present utility model:

[0029] First of all, it should be clear that the impeller involved in the present utility model is mainly used for a centrifugal blower, which is detachably connected to the rotating shaft of the blower. There are guide strips arranged on the outer side of the rotating shaft of the blower. There are external threads at the end of the rotating shaft at one end of the guide strip close to the impeller, and a limiting stop disk for blocking the first mounting disk 110 is arranged at the end of the guide strip far from the impeller. The present utility model takes the installation of the impeller as an example to elaborate on its usage method in detail. When installing the impeller, first, the operator holds the fixed cylinder 121 and aligns it with the corresponding holes on the mounting cylinder 111, then inserts the hexagon socket head bolt into the hexagon socket hole 141, and then rotates the screw rod 140 clockwise until it is screwed into the mounting cylinder 111. Then, align the guide groove 113 on the fixed cylinder 121 with the rotating shaft guide strip and insert it into the corresponding position on the rotating shaft. Then, align the card slot 112 on the second stop disk with the card strip on the blade 122 and insert it. Then, screw the locking nut onto the end of the rotating shaft to press the second mounting disk 130 against the impeller blade group 120. The present utility model can realize the effective protection operation of the impeller blade group 120 through the cooperation of the second mounting disk 130 and the first mounting disk 110, and can realize the rapid and efficient disassembly and assembly operation of the impeller blade group 120 through the detachably arranged fixed cylinder 121, which is convenient for disassembly, maintenance and cleaning operations, and the operation is more convenient and efficient. It solves the problem that the traditional impeller is often easily damaged by particulate hard impurities inhaled by the centrifugal fan during use due to lack of protection, greatly reducing its service life, and the installation method usually relies on interference fit, resulting in troublesome disassembly and installation when the impeller is damaged or needs to be cleaned.

[0030] In addition, it should also be noted that in the description of the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0031] The above is the preferred embodiment of the present utility model. It should be pointed out that for those of ordinary skill in the art of this technology, without departing from the principle described in the present utility model, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. An impeller for a centrifugal fan, characterized in that: It includes a centrifugal impeller assembly (100) detachably arranged on the rotating shaft of a fan. The centrifugal impeller assembly (100) includes a first mounting disc (110) clamped on the rotating shaft. An installation cylinder (111) is arranged at the axis center of the first mounting disc (110). An impeller blade group (120) is embedded on the first mounting disc (110). The impeller blade group (120) includes a fixed cylinder (121) detachably arranged on the upper part of the installation cylinder (111). A plurality of blades (122) are evenly arranged on the outer side wall of the fixed cylinder (121). A second mounting disc (130) is arranged on the outer side of the plurality of blades (122).

2. The impeller for a centrifugal fan according to claim 1, wherein: A plurality of clamping bars are evenly arranged on the upper and lower sides of each blade (122). Slots (112) corresponding to the clamping bars one by one are formed on both the first mounting disc (110) and the second mounting disc (130).

3. The impeller for a centrifugal fan according to claim 2, characterized in that: The second mounting disc (130) is of a concave structure with a higher outer height than the inner height.

4. The impeller for a centrifugal fan according to claim 3, characterized in that: A connecting plate (123) is arranged between two of the blades (122). A plurality of threaded holes (124) are formed in the connecting plate (123).

5. The impeller for a centrifugal fan according to claim 4, characterized in that: There are two connecting plates (123), and they are symmetrically arranged on the outer side of the fixed cylinder (121).

6. The impeller for a centrifugal fan according to claim 5, characterized in that: The fixed cylinder (121) is detachably arranged on the installation cylinder (111) through a screw (140). An internal hexagonal hole (141) is formed at the end of the screw (140).

7. The impeller for a centrifugal fan according to claim 6, characterized in that: A guiding strip is arranged on the outer side wall of the rotating shaft. Guiding grooves (113) adapted to the guiding strip are formed on the axes of the first mounting disc (110), the installation cylinder (111) and the fixed cylinder (121). External threads are arranged at the end of the rotating shaft. The second mounting disc (130) is fixed to the rotating shaft through a locking nut.

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