Fan driving mechanism and centrifugal fan thereof

Abstract

The fan driving mechanism comprises a supporting base, two sets of bearing seats are oppositely arranged on the side wall of the supporting base, a follow-up rod is arranged between the two sets of bearing seats in a penetrating mode, a connecting disc is arranged at one end of the follow-up rod, a follow-up disc is arranged at the other end of the follow-up rod, and a position adjusting assembly is arranged above the supporting base. According to the utility model, the installation position of the driving motor of the centrifugal fan is adjustable through the position adjusting assembly, and after the rubber synchronous belt is damaged in the long-term use process, the driving motor can be driven by the rubber synchronous belt to rotate, so that the driving motor can be driven to rotate, and the service life of the driving motor is prolonged. The position of the driving motor is adjusted to quickly take down the rubber synchronous belt for replacement and maintenance.

Description

TECHNICAL FIELD

[0001] The utility model belongs to centrifugal fan technical field especially, relate to a fan drive mechanism and centrifugal fan thereof. BACKGROUND

[0002] In modern industry and life, centrifugal fan as an important fluid machinery equipment is widely used in ventilation, exhaust, cooling and pressurization and many other fields, along with the progress of science and technology and the continuous improvement of market demand, the performance requirement of centrifugal fan is higher and higher, especially in the aspects of improving energy efficiency, reducing noise, improving reliability and simplifying maintenance, the design and manufacture of centrifugal fan face enormous challenges.

[0003] The traditional centrifugal fan drive mechanism usually adopts the mode that motor directly drives fan impeller, and this design is simple in structure, but has several obvious shortcomings, and the adjustment flexibility is poor, and the noise and vibration problems are serious, therefore, external drive is applied more and more widely, wherein, the file 202023173346.1 discloses an energy-saving centrifugal fan, which mainly solves the problem of adjusting the position and direction of the centrifugal fan blowing, but it is found in the long-term use that the rubber synchronous belt used as a linkage part usually wears fast and needs to be replaced and maintained regularly, but the installation position of the driving motor is usually fixed, which also causes the rubber synchronous belt to be difficult to remove and install during replacement and needs to be forcedly squeezed, in order to optimize this scheme, the practitioner designs a fan drive mechanism and centrifugal fan. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at solving the problem that the driving mechanism of the existing centrifugal fan needs to be forcedly squeezed and is difficult to be quickly removed and installed during regular replacement and maintenance of the rubber synchronous belt, and provides a fan drive mechanism and centrifugal fan.

[0005] The utility model realizes the above-mentioned purposes through the following technical scheme: a fan drive mechanism, comprising a support base, two groups of bearing seats are oppositely arranged on the side wall of the support base, a follow-up rod is arranged between the two groups of bearing seats, a link plate is arranged at one end of the follow-up rod, and a follow-up disc is arranged at the other end of the follow-up rod, a position adjusting assembly is arranged above the support base, a driving motor is arranged above the position adjusting assembly, a driving disc is arranged on the rotating shaft of the driving motor, and the driving disc and the follow-up disc are matched through a rubber synchronous belt.

[0006] The position adjustment assembly includes a support outer frame fixed to the top of the support base, and adjustment grooves are provided on the inner walls on both sides of the support outer frame. Several groups of adjustment blocks are slidably arranged in the two groups of adjustment grooves, and extension rods are provided on the adjustment blocks. A motor mounting plate is provided between the extension rods, and the drive motor is fixedly set on the motor mounting plate. Several groups of locking bolts are provided on the other two side walls of the support outer frame relative to the adjustment grooves, and the locking bolts are used to cooperate with the motor mounting plate to fix its position.

[0007] Furthermore, the direction of the follower rod on the horizontal plane is parallel to the direction of the drive motor on the horizontal plane.

[0008] Furthermore, two groups of protrusions for limiting the position of the rubber synchronous belt are relatively arranged on the follower plate and the driving plate.

[0009] Furthermore, the adjustment block is embedded in the adjustment groove.

[0010] Furthermore, the length of the threaded hole on the motor mounting plate for connecting with the locking bolt is greater than the length of the locking bolt.

[0011] A centrifugal fan comprises the fan drive mechanism, a centrifugal fan body is provided on one side of the support base, an impeller is provided in the centrifugal fan body, the impeller is fixedly provided on the connecting plate, and there is a gap between the impeller and the inner wall of the centrifugal fan body.

[0012] Beneficial effects: The utility model has reasonable design, simple and stable structure, strong practicality, and has the following beneficial effects:

[0013] 1. Compact and stable overall structure: By setting the support base as the main support, the overall structure becomes more compact after the subsequent components are installed, which can effectively improve the stability and seismic resistance of the equipment and ensure the reliability of the centrifugal fan during operation;

[0014] 2. Flexibility of position adjustment: The design of the position adjustment component allows the installation position of the drive motor to be easily adjusted, so that the damaged rubber timing belt can be quickly removed. After replacing the new rubber timing belt, it can also be adjusted back to the starting position to ensure the tension of the rubber timing belt after replacement;

[0015] 3. Efficient power transmission: The application of rubber synchronous belt realizes efficient power transmission between the driving plate and the follower plate, reduces energy loss and improves the overall operating efficiency of the system;

[0016] 4. Easy to maintain and adjust: The setting of the adjustment block and the design of the locking bolt make it easy to fix and adjust the motor position, reduce the complexity of equipment maintenance, and improve the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Fig. 1 A schematic diagram of the present utility model;

[0018] Fig. 2 This is a schematic structural diagram of the fan drive mechanism of the utility model;

[0019] Fig. 3 This is a structural diagram of the position adjustment component of the utility model.

[0020] In the figure: 1-support base, 2-bearing seat, 3-follower rod, 4-connection plate, 5-follower plate, 6-position adjustment assembly, 7-drive motor, 8-drive plate, 9-rubber synchronous belt, 10-centrifugal fan body, 11-impeller;

[0021] 601-support outer frame, 602-adjustment slot, 603-adjustment block, 604-extension rod, 605-motor mounting plate, 606-locking bolt. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Example 1:

[0024] Combine Figs. 1-3 A fan drive mechanism shown in FIG. 1 includes a support base 1, which serves as the foundation of the entire mechanism and provides a stable support structure. Two sets of bearing seats 2 are arranged opposite to each other on the side walls of the support base 1, and a follower rod 3 is arranged between the two sets of bearing seats 2. The design of the bearing seats 2 allows the follower rod 3 to rotate smoothly therebetween to ensure movement efficiency. A connecting disc 4 is provided at one end of the follower rod 3, and a follower disc 5 is provided at the other end. The connecting disc 4 is designed to achieve efficient connection with other components. A position adjustment component 6 is provided above the support base 1, and a drive motor 7 is provided above the position adjustment component 6. A drive disc 8 is provided on the rotating shaft of the drive motor 7. The drive disc 8 and the follower disc 5 are matched through a rubber synchronous belt 9 to form the core part of the transmission system.

[0025] The position adjusting assembly 6 comprises a supporting outer frame 601 fixed on the top of the supporting base 1, the inner walls of the two sides of the supporting outer frame 601 are provided with adjusting grooves 602, a plurality of groups of adjusting blocks 603 are slidingly arranged in the adjusting grooves 602, the adjusting blocks 603 are embedded in the adjusting grooves 602 to ensure that the adjusting blocks 603 can freely slide in the adjusting grooves 602 and will not easily fall off, the adjusting blocks 603 are provided with outer extension rods 604, a motor mounting plate 605 is arranged between the outer extension rods 604, a driving motor 7 is fixedly arranged on the motor mounting plate 605, a plurality of groups of locking bolts 606 are arranged on the other two side walls of the supporting outer frame 601 relative to the adjusting grooves 602, the locking bolts 606 are used to cooperate with the motor mounting plate 605 to realize the position fixation of the motor mounting plate 605, and the locking bolts 606 can ensure that the driving motor 7 will not be displaced due to vibration during operation, thereby maintaining the stability and reliability of the overall system.

[0026] In the embodiment, the direction of the follow-up rod 3 in the horizontal plane is parallel to the direction of the driving motor 7 in the horizontal plane, which means that the movement trajectories of the two assemblies in the space are consistent, so that efficient power transmission is realized. The parallel arrangement design can not only effectively reduce the friction and energy loss caused by angle deviation, but also can ensure the stability and accuracy of system operation. When the driving motor 7 rotates, the power generated by the driving motor 7 can be directly transmitted to the follow-up rod 3, avoiding unnecessary mechanical interference and improving the overall response speed.

[0027] In the embodiment, the follow-up disc 5 and the driving disc 8 are both provided with two groups of protrusions for limiting the position of the rubber synchronous belt 9. These protrusions effectively prevent the rubber synchronous belt 9 from deviating during movement by physical blocking, thereby ensuring effective contact and stable transmission in the transmission system.

[0028] In the embodiment, the length of the threaded hole on the motor mounting plate 605 for connecting the locking bolt 606 is greater than the length of the locking bolt 606. The extra length of the threaded hole not only provides enough space to ensure that the locking bolt 606 can easily enter and tighten, but also avoids interference caused by excessive leakage.

[0029] A centrifugal fan comprises a fan driving mechanism, a centrifugal fan body 10 is arranged on one side of the supporting base 1, forming the overall structure of the centrifugal fan, and the stability and firmness thereof are the basis for ensuring the normal operation of the equipment. The centrifugal fan body 10 is provided with an impeller 11, the design of the impeller 11 is the core of the performance of the fan, the impeller 11 is fixedly arranged on the connecting disc 4, and a gap exists between the impeller 11 and the inner wall of the centrifugal fan body 10. This design can not only avoid friction between the impeller 11 and the main body due to vibration generated during operation, thereby reducing wear and noise, but also can ensure smooth flow of air. The existence of the gap allows air to pass through the impeller in the best way, while ensuring the flexible adaptability of the fan under various working conditions.

[0030] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments and that the application can be implemented in other particular forms without departing from the spirit or essential characteristics of the application. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the above description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims should be considered as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although the description is made on embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments which can be understood by those skilled in the art.

Claims

1. A fan drive mechanism, characterized in that: It comprises a support base (1), two groups of bearing seats (2) are arranged on the side walls of the support base (1) relative to each other, a follower rod (3) is arranged between the two groups of bearing seats (2), one end of the follower rod (3) is provided with a connecting plate (4), and the other end is provided with a follower plate (5), a position adjustment component (6) is arranged above the support base (1), a driving motor (7) is arranged above the position adjustment component (6), a driving plate (8) is arranged on the rotating shaft of the driving motor (7), and the driving plate (8) and the follower plate (5) are matched through a rubber synchronous belt (9); The position adjustment component (6) includes a support outer frame (601) fixed to the top of the support base (1), and the inner walls on both sides of the support outer frame (601) are provided with adjustment grooves (602), and a plurality of adjustment blocks (603) are slidably arranged in the two groups of the adjustment grooves (602), and the adjustment blocks (603) are provided with extension rods (604), and a motor mounting plate (605) is provided between the extension rods (604). The drive motor (7) is fixedly arranged on the motor mounting plate (605), and a plurality of locking bolts (606) are provided on the other two side walls of the support outer frame (601) relative to the adjustment grooves (602). The locking bolts (606) are used to cooperate with the motor mounting plate (605) to achieve its position fixation.

2. A fan drive mechanism according to claim 1, characterized in that: The direction of the follower rod (3) on the horizontal plane is parallel to the direction of the drive motor (7) on the horizontal plane.

3. A fan drive mechanism according to claim 2, characterized in that: Two groups of protrusions for limiting the position of the rubber synchronous belt (9) are arranged opposite to each other on the follower disc (5) and the driving disc (8).

4. A fan drive mechanism according to claim 3, characterized in that: The adjustment block (603) is embedded in the adjustment groove (602).

5. A fan drive mechanism according to claim 4, characterized in that: The length of the threaded hole on the motor mounting plate (605) for connecting with the locking bolt (606) is greater than the length of the locking bolt (606).

6. A centrifugal fan, characterized in that: The fan drive mechanism comprises the fan drive mechanism according to any one of claims 1 to 5, wherein a centrifugal fan body (10) is provided on one side of the support base (1), an impeller (11) is provided in the centrifugal fan body (10), the impeller (11) is fixedly provided on the connecting plate (4), and a gap exists between the impeller (11) and the inner wall of the centrifugal fan body (10).

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