Split type fan

Abstract

The utility model discloses a split type fan which comprises a connecting part. The machine shells are symmetrically arranged on the two sides of the connecting part; the driving shaft penetrates through the connecting part and the machine shells on the two sides; the impellers are arranged on the driving shaft and symmetrically arranged in the machine shell; the machine shell comprises a shell base and a shell cover, the shell base is connected with the connecting part, and a supporting base matched with the driving shaft is arranged on the shell cover; an air outlet is formed in the machine shell, and the impeller is eccentrically arranged relative to the center of the machine shell towards the side parallel to the axis away from the air outlet. According to the split type fan provided by the utility model, the overall air volume of the fan is increased by arranging the symmetrical fan blades, and the fan is detachable, so that the fan is convenient to disassemble and assemble, and the subsequent replacement and maintenance of the fan blades are also convenient; in addition, the fan blades are eccentrically arranged, so that the air volume of the air outlet is increased, and the operation efficiency of the fan is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan technical field especially a split type fan. BACKGROUND

[0002] The fan is the machinery that relies on inputted mechanical energy to improve gas pressure and send gas, and its main structural components are impeller, casing, driving shaft and air outlet etc.

[0003] The existing fan generally adopts single impeller drive, thereby only having single air outlet, when the demand air volume is big, but the air outlet of impeller drive is difficult to provide corresponding air volume, needs to increase the number of fan to carry out adaptation, thereby causing the rise of cost;

[0004] In addition, the existing impeller is coaxial with the center of casing when installing, that is, the distance between the outer edge of impeller and the inner wall of casing is equal, and the air volume thereof is difficult to be effectively improved. UTILITY MODEL CONTENTS

[0005] The utility model provides a split type fan in view of the deficiency in prior art.

[0006] In order to solve the above technical problem, the utility model solves through the following technical scheme: a split type fan, including connecting portion, casing, driving shaft and impeller, the casing is symmetrically arranged on both sides of the connecting portion, the driving shaft is arranged through the connecting portion and the casing on both sides, and the impeller is arranged on the driving shaft and symmetrically arranged in the casing.

[0007] The casing includes shell seat and shell cover, the shell seat is connected with the connecting portion, and the shell cover is provided with supporting seat matched with the driving shaft.

[0008] The casing is provided with air outlet, and the impeller is eccentrically arranged to the parallel side away from the air outlet axis center of the casing.

[0009] In the above scheme, preferably, one end of the driving shaft is provided with a connecting shaft connected with the power source.

[0010] In the above scheme, preferably, the supporting seat on both sides is provided with mounting bracket for mounting the fan.

[0011] In the above scheme, preferably, the both ends of the shell seat are detachably connected with the connecting portion and the shell cover through fasteners.

[0012] In the above scheme, preferably, the distance between the side of the impeller close to the air outlet axis and the inner wall of the casing is greater than the distance between the impeller and the remaining inner wall of the casing.

[0013] In the above scheme, preferably, the driving shaft is provided with keyway matched with the impeller on both sides, and the keyway centers on both sides are arranged on the same horizontal axis.

[0014] Preferably, the impeller comprises a main impeller and an impeller seat, and the impeller seat is provided with a key hole matched with the key groove.

[0015] The main impeller is provided with a plurality of blades, and the key hole is arranged corresponding to any blade.

[0016] Preferably, the impeller outer edge and the inner wall of the shell form an air guide area, and the air guide area gradually increases from the rotation direction of the impeller to the air outlet.

[0017] Preferably, the support seat comprises a cover body and a bearing matched with the driving shaft, and the cover body is detachably connected with the shell cover through fasteners.

[0018] Preferably, the number of blades is at least one, and the blades are arranged outwardly inclined away from the rotation direction from the center of the impeller.

[0019] The beneficial effects of the present application are: the present application provides a split type fan, which improves the overall air volume of the fan by setting symmetrical fan blades, and the fan is detachable, which is convenient for disassembly and installation, and also facilitates subsequent replacement and maintenance of the fan blades.

[0020] In addition, by eccentrically arranging the fan blades, the air volume of the air outlet is improved, and the efficiency of the fan operation is greatly improved. DRAWINGS

[0021] Figure 1 It is a cross-sectional structure schematic diagram of the present application.

[0022] Figure 2 It is a front view structure schematic diagram of the present application.

[0023] Figure 3 It is an impeller structure schematic diagram of the present application. DETAILED DESCRIPTION

[0024] The present application will be further described in detail below in combination with the drawings and specific embodiments: refer to Figures 1-3 .

[0025] A split type fan, comprising a connecting part 1 and a shell 2 arranged on both sides of the connecting part 1, the connecting part 1 adopts a hollow pipe, the shell 2 comprises a shell seat 201 and a shell cover 202, the shell seat 201 is fixed on the end face of one side of the connecting part 1 through fasteners, and the shell cover 202 is fixedly connected with the shell seat 201 through fasteners.

[0026] The shell seat 201 is symmetrically fixed on the end faces of the connecting part 1, and the shell cover 202 is fixed on the symmetric shell seats 201 on both sides, thereby forming two symmetric casings 2; the impeller 4 is rotatably arranged in the casing 2, the driving shaft 3 is arranged through the casings 2 symmetrically arranged on both sides and the connecting part 1, the impeller 4 is fixedly connected with the two ends of the driving shaft 3, and the two ends of the driving shaft 3 are rotatably arranged on the casing 2.

[0027] The shell cover 2 is provided with a support seat 203 matched with the driving shaft 3, that is, the driving shaft 3 is rotatably arranged on the support seat 203, the support seat 203 on any one side of the driving shaft 3 is provided with a connecting shaft 301, the connecting shaft 301 is in transmission connection with the power source, and the connecting shaft 301 can be connected with the output shaft of the power source through a shaft coupling, thereby driving the impellers 4 on both sides to synchronously rotate through the connecting shaft 301.

[0028] The support seats 203 on both sides are provided with mounting brackets 205 for mounting the fan, the mounting brackets 205 are fixed on the end face of the shell cover 202 away from the shell seat 201 through fasteners, as shown in Figure 1 , and the mounting brackets 205 form symmetric brackets after installation, so as to improve the stability of the fan after installation.

[0029] The shell seat 201 is detachably connected with the connecting part 1 and the shell cover 202 through fasteners at both ends, during installation, the shell seat 201 is symmetrically fixed on both ends of the connecting part 1 through fasteners, then the driving shaft 3 is arranged through and placed in the connecting part 1, and the two ends of the driving shaft 3 are placed in the shell seat 201; then the impeller 4 is mounted on the driving shaft 3, the shell cover 202 is fixed on the shell seat 201 through fasteners, and finally the mounting bracket 205 is fixed on the shell cover 202, thereby forming the fan as shown in Figure 1 .

[0030] In order to make the impellers 4 on both sides in the same state after installation, that is, the directions and orientations of the blades 404 on the impellers 4 are in a mirror-symmetric state, the impellers 4 can reduce resonance after synchronous rotation, and the stability of the impeller rotation is improved, the key grooves 302 matched with the impellers 4 are arranged on both sides of the driving shaft 3, and the centers of the key grooves 302 on both sides are arranged on the same horizontal axis.

[0031] The impeller 4 comprises a main impeller 401 and an impeller seat 402, the impeller seat 402 is provided with a key hole 403 matched with the key groove 302; the main impeller 401 is provided with a plurality of blades 404, the key hole 403 is correspondingly arranged with any blade 404, that is, the key hole 403 corresponds to the vertical position of any blade 404, thereby the blades of the main impellers 401 on both sides are arranged in a mirror-symmetric state after the main impeller 401 is mounted on the driving shaft 3.

[0032] The number of the blades 404 is at least three, and the blades are arranged outwardly and obliquely away from the rotation direction from the center of the impeller 4.

[0033] The support base 203 comprises a cover 206 and a bearing 207 matched with the driving shaft 3, the cover 206 is detachably connected with the shell cover 202 through fasteners, one end of the driving shaft 3 installed and connected with the shaft 301 is arranged through the cover 206, and a sleeve can be installed on the cover 206 on this side to further install a coupling therein, and the sleeve can be fixed with an external frame or a power source to improve the stability of the fan during operation after installation.

[0034] The shell 2 is provided with an air outlet 204, the air outlet 204 is in an integrated state with the shell 2 after assembly, and the impeller 4 is arranged eccentrically relative to the center of the shell 2 and away from the axis parallel to one side of the air outlet 204, so as to increase the distance between the outer edge of the impeller 4 and the inner wall of the shell 2 at the air outlet 204.

[0035] The distance between the impeller 4 close to the axis of the air outlet 204 and the inner wall of the shell 2 is greater than the distance between the impeller 4 and the remaining inner wall of the shell 2, the impeller 4 and the inner wall of the shell 2 form a wind guide area 5, and the wind guide area 5 gradually increases from the rotation direction of the impeller 4 to the air outlet 204, so as to greatly improve the air volume at the air outlet 204.

[0036] The method for using the above-mentioned split type fan comprises the following steps: during installation, the shell base 201 is symmetrically fixed on both ends of the connecting part 1 through fasteners, then the driving shaft 3 is put into the connecting part 1, and both ends of the driving shaft 3 are arranged in the shell base 201, then the impeller 4 is installed on the driving shaft 3, the shell cover 202 is fixed on the shell base 201 through fasteners, and the installation support 205 is fixed on the shell cover 202.

[0037] The power source is drivingly connected with any one end of the driving shaft 3 through a coupling or other connecting parts, so that the impeller 4 rotates in the direction as shown in the figure, and the impeller 4 discharges air from the air outlet 204 through the wind guide area 5 after rotation, and the wind guide area 5 increases when the air approaches the air outlet 204, so that the air volume of the air outlet 204 is improved. Figure 3

[0038] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.​

Claims

1. A split fan, characterized by: The utility model relates to a fan, including connecting part (1); Casing (2) symmetry is equipped with in connecting part (1) both sides; Driving shaft (3) passes through connecting part (1) and both sides casing (2) setting;And Impeller (4) is equipped with on driving shaft (3) and symmetry sets up in casing (2); The casing (2) includes shell seat (201) and shell cover (202), the shell seat (201) is connected with connecting part (1), and the support seat (203) that is equipped with with driving shaft (3) cooperation is on the shell cover (202); The casing (2) is equipped with air outlet (204), and the impeller (4) is eccentric to the center of casing (2) and is arranged to the parallel side of the axis of air outlet (204) away.

2. The split fan of claim 1, wherein: The driving shaft (3) either end is equipped with the connecting shaft (301) of transmission connection with power source.

3. The split fan of claim 1, wherein: The support seat (203) on both sides is equipped with the mounting bracket (205) for installing fan.

4. The split fan of claim 1, wherein: The shell seat (201) both ends are detachably connected with connecting part (1) and shell cover (202) through fastener.

5. The split fan of claim 1, wherein: The spacing between the impeller (4) near the axis of air outlet (204) side and the inner wall of casing (2) is greater than the spacing between the impeller (4) and the remaining inner wall of casing (2).

6. A split fan as claimed in any one of claims 1 to 5, wherein: The driving shaft (3) both sides are equipped with the keyway (302) cooperation with impeller (4), and the keyway (302) center on both sides is arranged to the same horizontal axis.

7. The split fan of claim 6, wherein: The impeller (4) includes main impeller (401) and impeller seat (402), and the key hole (403) is equipped with on the impeller seat (402) and is matched with the keyway (302); The main impeller (401) is equipped with a plurality of blades (404), and the key hole (403) is arranged correspondingly with any blade (404).

8. The split fan of claim 1, wherein: The spacing between the impeller (4) outer edge and the inner wall of casing (2) forms the air guide area (5), and the air guide area (5) gradually increases from the direction of impeller (4) rotation to the air outlet (204).

9. The split fan of claim 1, wherein: The support seat (203) includes cover body (206) and bearing (207) matched with driving shaft (3), and the cover body (206) is detachably connected with shell cover (202) through fastener.

10. The split fan of claim 7, wherein: The number of blades (404) is at least 3, and the blade is arranged outwardly inclined from the center of impeller (4) to the direction away from rotation.

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