Wind power adjusting device of air feeder

Abstract

The utility model discloses a wind power adjusting device of an air feeder, which relates to the technical field of air feeders and comprises a driving box, a rotating shaft and a driving shaft are rotatably connected in the driving box, the right end of the driving shaft penetrates through the right end of the driving box and extends to the outer side of the driving box, and four uniformly distributed driving gears are fixedly connected to the outer surface of the rotating shaft. According to the adjusting assembly, the driven gears with different diameters are selected by sliding the position of the adjusting sleeve to drive the driving shaft to rotate, the driven gears are driven to rotate, and the driven gears are driven to rotate to drive the driving shaft to rotate; the transmission ratios of the driving gears and the driven gears with different diameters are different, so that the driven gears with different diameters drive the driving shaft to rotate at different rotating speeds, the rotating speed of the impeller can be adjusted by controlling the rotating speed of the driving shaft, and compared with air door adjustment, noise caused by unstable air flow can be effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a fan technology field, concretely relates to a fan's wind power adjusting device. BACKGROUND

[0002] The fan is a kind of mechanical equipment for air or gas delivery, drives impeller rotation by motor, and air is inhaled and accelerated by high-speed rotation of impeller, and finally air flow is discharged, provides continuous air flow, helps to adjust ambient temperature, humidity, ensures air circulation or provides appropriate air pressure, and is widely used in building, industry and HVAC etc.

[0003] The traditional fan adjusts the wind power mainly by the adjustment of air door or the combination of frequency converter and motor, and the air flow can be controlled by adjusting the opening of air door, but the adjustment of air door often causes unstable air flow and noise increase, and the wind power is adjusted by frequency converter and motor, and motor needs to be frequently speed-regulated, consumes more electric energy, so a fan's wind power adjusting device is provided to solve the above problems. SUMMARY

[0004] To solve the above technical problems, a fan's wind power adjusting device is provided, which solves the problem that the traditional fan adjusts the wind power mainly by the adjustment of air door or the combination of frequency converter and motor, and the air flow can be controlled by adjusting the opening of air door, but the adjustment of air door often causes unstable air flow and noise increase, and the wind power is adjusted by frequency converter and motor, and motor needs to be frequently speed-regulated, consumes more electric energy.

[0005] To achieve the above purposes, the utility model adopts the technical scheme that:

[0006] A fan's wind power adjusting device, comprising a drive box, a rotating shaft and a drive shaft are rotatably connected in the drive box, the right end of the drive shaft penetrates the right end of the drive box and extends to the outside of the drive box, the outer surface of the rotating shaft is fixedly connected with four evenly distributed driving gears, the diameters of the four driving gears gradually increase from left to right, the outer surface of the drive shaft is fixedly connected with two symmetrically distributed fixed blocks, four limiting grooves are formed in the upper end of the fixed block, a rotating ring is arranged in each limiting groove, the rotating ring is slidably connected to the outer surface of the drive shaft, a driven gear is fixedly connected to the outside of the rotating ring, the diameters of the four driven gears gradually decrease from left to right, the driving gears and the driven gears on the same side are meshed with each other, the driven gears on the left and the driven gears on the right are both provided with an adjusting assembly, and the side of the driven gear close to the adjusting assembly is fixedly connected with a connecting gear ring.

[0007] The adjusting assembly comprises a hub fixedly connected to the outer surface of the driving shaft, a sleeve slidingly connected to the outer side of the hub, and a bearing provided on the outer side of the sleeve, and the outer surface of the sleeve is fixedly connected to the inner wall of the inner ring of the bearing.

[0008] Preferably, the inner side of the sleeve is provided with a plurality of uniformly distributed tooth-shaped connecting portions, and the gap between two adjacent tooth-shaped connecting portions is the same as the tooth gap of the connecting tooth ring.

[0009] Preferably, the inner side of the sleeve is fixedly connected with two symmetrically distributed fixing seats, the left and right ends of the fixing seat are provided with expansion grooves, the inside of the expansion groove is fixedly connected with a spring, the other end of the spring is fixedly connected with an abutting block, and the abutting block is slidingly connected to the inside of the expansion groove.

[0010] Preferably, the outer surface of the connecting tooth ring is slidingly connected with a synchronous tooth ring, and the side close to the adjusting assembly of the synchronous tooth ring is provided with an abutting portion at the corresponding position of the abutting block.

[0011] Preferably, the outer surface of the bearing outer ring is fixedly connected with a connecting seat, two lead screws are rotatably connected in the driving box, the two connecting seats are respectively threadedly connected to the outer surfaces of the two lead screws, two guide rods symmetrically distributed about the lead screws are fixedly connected to the front side and the rear side of the two lead screws in the driving box, and the connecting seat is slidingly connected to the outer surface of the guide rod.

[0012] Preferably, the left end of the driving box is fixedly provided with a first motor for driving the rotating shaft to rotate and two second motors for driving the lead screws to rotate.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The wind power adjusting device of the air supply machine is provided, the adjusting assembly selects different diameter driven gears to drive the driving shaft to rotate by slidingly adjusting the position of the sleeve, the transmission ratio between different diameter driving gears and driven gears is different, so the rotating speed of the driven gears of different diameters is also different when driving the driving shaft to rotate, the rotating speed of the impeller can be adjusted by controlling the rotating speed of the driving shaft, compared with the air door adjustment, the noise caused by unstable air flow can be effectively reduced, and the adjustment of the wind speed is realized by replacing the gear set with different transmission ratios, the motor only needs to maintain uniform speed output, and the cost of the combination of the frequency converter and the motor for wind power adjustment is lower. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The utility model discloses a structure schematic drawing;

[0016] Figure 2It is the structure schematic view of the driving box in the utility model;

[0017] Figure 3 It is the structure schematic view of the rotating shaft in the utility model;

[0018] Figure 4 It is the structure schematic view of the driving shaft in the utility model;

[0019] Figure 5 It is the structure schematic view of the rotating ring in the utility model;

[0020] Figure 6 It is the structure schematic view of the driven gear in the utility model;

[0021] Figure 7 It is the connection schematic view of the connecting tooth ring in the utility model;

[0022] Figure 8 It is the structure schematic view of the connecting tooth ring in the utility model;

[0023] Figure 9 It is the connection schematic view of the synchronous tooth ring in the utility model;

[0024] Figure 10 It is the structure schematic view of the adjusting assembly in the utility model;

[0025] Figure 11 It is the structure schematic view of the fixed seat in the utility model.

[0026] The figure mark is:

[0027] 1, driving box; 2, rotating shaft; 3, driving shaft; 4, driving gear; 5, fixed block; 6, limiting groove; 7, rotating ring; 8, first motor; 9, driven gear; 10, connecting tooth ring; 11, synchronous tooth ring; 1101, abutting portion;

[0028] 12, adjusting assembly; 1201, hub; 1202, sleeve; 1203, toothed connecting portion; 1204, fixed seat; 1205, telescopic groove; 1206, spring; 1207, abutting block; 1208, bearing; 1209, connecting seat; 1210, screw rod; 1211, guide rod; 1212, second motor. DETAILED DESCRIPTION

[0029] The following description is used to disclose the utility model so that those skilled in the art can realize the utility model. The preferred embodiments in the following description are only as examples, and other obvious variants can be thought of by those skilled in the art.

[0030] Refer to Figures 1-11The wind power adjusting device of a blower shown comprises a driving box 1, a rotating shaft 2 and a driving shaft 3 are rotatably connected inside the driving box 1, the right end of the driving shaft 3 penetrates through the right end of the driving box 1 and extends to the outside of the driving box 1, the outer surface of the rotating shaft 2 is fixedly connected with four driving gears 4 which are uniformly distributed, the diameters of the four driving gears 4 gradually increase from left to right, the outer surface of the driving shaft 3 is fixedly connected with two fixed blocks 5 which are symmetrically distributed, four limiting grooves 6 are formed in the upper end of the fixed block 5, a rotating ring 7 is arranged inside each limiting groove 6, the rotating ring 7 is slidingly connected to the outer surface of the driving shaft 3, a driven gear 9 is fixedly connected to the outside of the rotating ring 7, the diameters of the four driven gears 9 gradually decrease from left to right, the driving gears 4 and the driven gears 9 on the same side are in mesh with each other, the adjusting assembly 12 is arranged between the two driven gears 9 on the left side and the two driven gears 9 on the right side, and the side of the driven gear 9 close to the adjusting assembly 12 is fixedly connected with a connecting gear ring 10.

[0031] The adjusting assembly 12 comprises a hub 1201 fixedly connected to the outer surface of the driving shaft 3, a sleeve 1202 slidingly connected to the outside of the hub 1201, and a bearing 1208 arranged on the outside of the sleeve 1202, and the inner wall of the inner ring of the bearing 1208 is fixedly connected to the outer surface of the sleeve 1202.

[0032] Further, the left end of the driving box 1 is fixedly installed with a first motor 8 for driving the rotating shaft 2 to rotate.

[0033] Further, the driving shaft 3 is connected with the impeller of the blower at the end extending to the outside of the driving box 1, thereby providing power for the rotation of the impeller.

[0034] Further, the four driving gears 4 and the four driven gears 9 are in mesh with each other, when the first motor 8 drives the rotating shaft 2 to rotate, the four driving gears 4 with gradually increasing diameters will respectively drive the four driven gears 9 with gradually decreasing diameters to rotate, the rotation of the driven gears 9 will drive the rotating ring 7 and the connecting gear ring 10 to rotate, the inner wall of the rotating ring 7 is smooth, and since the rotating ring 7 is slidingly connected to the outer surface of the driving shaft 3, the rotating ring 7 cannot transmit power to the driving shaft 3 during the rotation.

[0035] Further, the inside of the sleeve 1202 is provided with a plurality of uniformly distributed tooth-shaped connecting parts 1203, the gap between the two adjacent tooth-shaped connecting parts 1203 is the same as the tooth gap of the connecting gear ring 10, the outer surface of the hub 1201 is provided with a plurality of uniformly distributed protrusions, and the tooth-shaped connecting parts 1203 of the sleeve 1202 are inserted into the gap between the two adjacent protrusions.

[0036] Further, the outer surface of the outer ring of the bearing 1208 is fixedly connected with a connecting seat 1209, the inside of the driving box 1 is rotatably connected with two lead screws 1210, the two connecting seats 1209 are threadedly connected to the outer surfaces of the two lead screws 1210 respectively, and the inside of the driving box 1 is fixedly connected with two guide rods 1211 which are symmetrically distributed with respect to the lead screws 1210 at the front side and the rear side of the two lead screws 1210. The connecting seat 1209 is slidably connected to the outer surface of the guide rod 1211.

[0037] Further, the left end of the driving box 1 is fixedly provided with two second motors 1212 for driving the rotation of the lead screws 1210. The two lead screws 1210 are driven to rotate by the two second motors 1212 respectively, so as to drive the two connecting seats 1209 to move leftward and rightward respectively, thereby driving the two bearings 1208 to move leftward and rightward, so that the sleeve 1202 approaches the connecting gear ring 10. Since the gap between the two adjacent tooth-shaped connecting parts 1203 in the inside of the sleeve 1202 is the same as the tooth gap of the connecting gear ring 10, the tooth-shaped connecting parts 1203 are meshed with the connecting gear ring 10 by sliding the sleeve 1202, so that the power generated by the rotation of the driven gear 9 can be transmitted to the sleeve 1202 through the connecting gear ring 10, and then transmitted to the wheel hub 1201. Since the wheel hub 1201 is fixedly connected with the driving shaft 3, the driving shaft 3 will rotate with the driven gear 9 at the same speed of the rotating shaft 2. The rotating speeds of the four driving gears 4 are the same. At this time, the transmission ratio between the driving gear 4 with the maximum diameter and the driven gear 9 with the minimum diameter is the smallest, and the transmission ratio between the driving gear 4 with the minimum diameter and the driven gear 9 with the maximum diameter is the largest. The driving shaft 3 will obtain the maximum rotating speed by the driven gear 9 with the minimum diameter, and vice versa. By controlling the sliding of the two sleeves 1202, the rotating of the driving shaft 3 can be driven by selecting the driven gears 9 with different diameters, so as to adjust the rotating speed of the driving shaft 3, and further adjust the rotating speed of the impeller, thereby changing the air power of the air blower.

[0038] Further, the inside of the sleeve 1202 is fixedly connected with two symmetrically distributed fixing seats 1204, the left and right ends of the fixing seat 1204 are provided with expansion slots 1205, the inside of the expansion slot 1205 is fixedly connected with a spring 1206, the other end of the spring 1206 is fixedly connected with an abutting block 1207, and the abutting block 1207 is slidably connected to the inside of the expansion slot 1205.

[0039] Further, the outer surface of the connecting gear ring 10 is slidably connected with a synchronous gear ring 11, and the side of the synchronous gear ring 11 close to the adjusting assembly 12 is provided with an abutting portion 1101 at the corresponding position of the abutting block 1207.

[0040] Further, the synchronous gear ring 11 is used for transition when the sleeve 1202 is docked with the connecting gear ring 10, when the sleeve 1202 approaches the connecting gear ring 10, the abutting block 1207 will first contact the abutting portion 1101 of the synchronous gear ring 11, as the sleeve 1202 continuously approaches, the spring 1206 will be compressed, the synchronous gear ring 11 and the friction between the abutting block 1207 and the connecting gear ring 10 will continuously increase under the pressure applied by the abutting block 1207, at this time, the power on the connecting gear ring 10 will gradually be transmitted to the synchronous gear ring 11 and the sleeve 1202, so that the rotating speed of the synchronous gear ring 11 and the sleeve 1202 gradually approaches the connecting gear ring 10, under the condition that the rotating speed difference is small, the tooth-shaped connecting portion 1203 of the synchronous gear ring 11 can be more stably docked with the connecting gear ring 10, thereby reducing mechanical wear.

[0041] Working principle: before use, connect the driving shaft 3 with the impeller, in use, the first motor 8 starts, drives the rotating shaft 2 to rotate, the four driving gears 4 on the rotating shaft 2 drive the four meshing driven gears 9 to rotate, the driven gears 9 drive the rotating ring 7 and the connecting gear ring 10 to rotate, then the second motor 1212 drives the screw rod 1210 to rotate, the connecting seat 1209 is driven by the screw rod 1210 to slide left and right along the guide rod 1211, so that the sliding sleeve 1202 is docked with the connecting gear ring 10 on the driven gear 9, after the sliding sleeve 1202 is docked with the connecting gear ring 10, the power of the driven gear 9 is transmitted to the driving shaft 3, drives the driving shaft 3 to rotate, by selecting different diameters of the driven gear 9 to drive the driving shaft 3 to rotate, the rotating speed of the driving shaft 3 can be adjusted, when the smallest diameter driven gear 9 meshes with the largest diameter driving gear 4, the transmission ratio is maximum, and the rotating speed of the driving shaft 3 is maximum, when the largest diameter driven gear 9 meshes with the smallest diameter driving gear 4, the transmission ratio is minimum, and the rotating speed of the driving shaft 3 is minimum, when the sleeve 1202 slides to contact the connecting gear ring 10, the synchronous gear ring 11 will assist in smooth transition, as the sleeve 1202 approaches the connecting gear ring 10, the spring 1206 will be compressed, the abutting block 1207 will contact the abutting portion 1101 of the synchronous gear ring 11, so that the rotating speed of the synchronous gear ring 11 gradually approaches the connecting gear ring 10, through this transition mechanism, mechanical wear can be reduced, and the meshing of the tooth-shaped connecting portion 1203 and the connecting gear ring 10 is more stable.

[0042] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. An air volume adjusting device for a blower, characterized by comprising: The utility model provides a drive box (1), the inside rotation of drive box (1) is connected with the rotating shaft (2) and drive shaft (3), and the right end of drive shaft (3) penetrates the right end of drive box (1) and extends to the outside of drive box (1), the outer surface of rotating shaft (2) is fixedly connected with four active gear (4) that distribute evenly, the diameter of four active gear (4) increases gradually from left to right, the outer surface of drive shaft (3) is fixedly connected with two symmetrical fixed blocks (5), the upper end of fixed block (5) is penetrated and is provided with four limit slot (6), the inside of four limit slot (6) is provided with rotating ring (7), rotating ring (7) is slidingly connected on the outer surface of drive shaft (3), the outside of rotating ring (7) is fixedly connected with driven gear (9), the diameter of four driven gear (9) decreases gradually from left to right, and the active gear (4) and driven gear (9) on the same side are engaged, and the driven gear (9) on the left side and the driven gear (9) on the right side are provided with adjusting assembly (12) between two, and the side of driven gear (9) close to adjusting assembly (12) is fixedly connected with connecting gear ring (10). Wherein, the adjusting assembly (12) includes a hub (1201) fixedly connected to the outer surface of the drive shaft (3), a sleeve (1202) slidingly connected to the outer side of the hub (1201), a bearing (1208) provided on the outer side of the sleeve (1202), and the outer surface of the sleeve (1202) is fixedly connected with the inner wall of the inner ring of the bearing (1208).

2. The air volume adjusting device of a blower fan according to claim 1, wherein: The inner side of the sleeve (1202) is provided with a plurality of evenly distributed tooth-shaped connecting parts (1203), and the gap between the adjacent two tooth-shaped connecting parts (1203) is the same as the tooth gap of the connecting gear ring (10).

3. The air volume adjusting device of a blower fan according to claim 1, wherein: The inner side of the sleeve (1202) is fixedly connected with two symmetrically distributed fixed seats (1204), the left and right ends of the fixed seat (1204) are provided with expansion slots (1205), the inner side of the expansion slot (1205) is fixedly connected with a spring (1206), the other end of the spring (1206) is fixedly connected with an abutting block (1207), and the abutting block (1207) is slidingly connected in the inner side of the expansion slot (1205).

4. The air volume adjusting device of a blower fan according to claim 1, wherein: The outer surface of the connecting gear ring (10) is slidingly connected with a synchronous gear ring (11), and the abutting part (1101) is arranged at the corresponding position of the abutting block (1207) on the side of the synchronous gear ring (11) close to the adjusting assembly (12).

5. The air volume adjusting device of a blower fan according to claim 1, wherein: The outer surface of the bearing (1208) outer ring is fixedly connected with a connecting seat (1209), the inside of the drive box (1) is rotatably connected with two lead screws (1210), the two connecting seats (1209) are respectively threadedly connected to the outer surfaces of the two lead screws (1210), and the inside of the drive box (1) is fixedly connected with two guide rods (1211) symmetrically distributed about the lead screw (1210) on the front side and the rear side of the two lead screws (1210).

6. The air volume adjusting device of a blower fan according to claim 1, wherein: The left end of the driving box (1) is fixedly provided with a first motor (8) for driving the rotation of the rotating shaft (2) and two second motors (1212) for driving the rotation of the lead screws (1210).

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