CN112576526B - Double-wheel blower - Google Patents

Abstract

The invention relates to a double-wheel blower, which comprises a blower shell and a main shaft, wherein the end part of the main shaft is fixedly connected with the blower shell, a reverse shaft sleeve, a reverse wheel, a forward shaft sleeve and a forward rotating wheel are all connected with the main shaft through bearings, a reverse rotator is fixedly connected with the main shaft, a bevel gear is arranged on the reverse rotator, and bevel gear discs are fixedly arranged on the forward shaft sleeve and one side of the reverse shaft sleeve facing the reverse rotator and are meshed with the bevel gear discs; the positive rotation shaft sleeve and the positive rotation wheel are fixedly provided with a plurality of positive rotation sheets, the reverse rotation shaft sleeve and the reverse rotation wheel are fixedly provided with a plurality of reverse rotation sheets, and the positive rotation shaft sleeve is connected with the driving device through a transmission belt. The 7-shaped positive rotating piece and the 7-shaped negative rotating piece can increase the contact area of the rotating piece and air and can also increase the firmness of the rotating piece. The double-wheel structure of the forward rotating wheel and the reverse rotating wheel can effectively improve the air quantity and the air speed, thereby improving the efficiency of the fan.

Description

Double-wheel blower

Technical Field

The invention relates to an air blower, in particular to a double-wheel air blower, and belongs to the technical field of air blowers.

Background

A blower is a device that transfers energy to a continuously flowing fluid by the power of blades on a rotating impeller. The motor matched with the fan in various mechanical and electrical equipment in various industries in China at present accounts for about 60% of the motor loading amount in China, and the consumed electric energy accounts for about one third of the total power generation amount in China. Most of fans have the phenomenon that a trolley is pulled by a large horse in the using process, and due to changes in production, process and the like, many units meet the requirements of the process and working conditions on gas flow rate through a mode of artificially increasing resistance at the cost of wasting electric energy and money, not only are precious energy wasted, but also the requirements in the aspects of modern industrial production, service and the like are difficult to meet, and the negative effect is very serious.

Disclosure of Invention

According to the defects in the prior art, the technical problems to be solved by the invention are as follows: the double-wheel blower is provided, the efficiency of the blower is improved, and the air quantity and the air speed are increased, so that the defects are overcome.

The invention relates to a double-wheel blower which comprises a blower shell, a main shaft and a support, wherein the blower shell is fixed on the support, the end part of the main shaft is fixedly connected with the support, a reverse rotating shaft sleeve, a reverse rotating wheel, a reverse rotator, a forward rotating wheel and a forward rotating shaft sleeve are sequentially arranged on the main shaft, the reverse rotating shaft sleeve, the reverse rotating wheel, the forward rotating shaft sleeve and the forward rotating wheel are rotatably connected with the main shaft through bearings, the reverse rotator is fixedly connected with the main shaft, the reverse rotating shaft sleeve is fixedly connected with the reverse rotating wheel, the forward rotating shaft sleeve is fixedly connected with the forward rotating wheel, a bearing seat is arranged on the bearing of the forward rotating shaft sleeve, and the bearing seat is connected with the support;

the center of one side of the counter rotating wheel of the fan shell is provided with an air inlet, the center of one side of the counter rotating wheel is provided with an air inlet, and one end of the fan shell is provided with an air outlet;

the reversing device is provided with a gear hole, a bevel gear is arranged in the gear hole, the bevel gear is connected with the reversing device through a fixing rod and a bearing or a shaft sleeve, the fixing rod is connected on the reversing device, bevel gear discs are fixedly arranged on the sides, facing the reversing device, of the forward rotation shaft sleeve and the reverse rotation shaft sleeve, and the bevel gear is meshed with the bevel gear discs;

the positive rotation shaft sleeve and the positive rotation wheel are fixedly provided with a plurality of positive rotation sheets, the reverse rotation shaft sleeve and the reverse rotation wheel are fixedly provided with a plurality of reverse rotation sheets, and the positive rotation shaft sleeve is connected with the driving device through a transmission belt pulley.

Preferably, the end of the positive rotation piece connected with the positive rotation shaft sleeve is wide, the other end of the positive rotation piece connected with the positive rotation shaft sleeve is narrow, the stability of the positive rotation piece and the wind power at an outlet are improved, and the deformation of the tail end due to overlarge stress is prevented.

Preferably, the end of the reversing sheet connected with the reversing shaft sleeve is wide, the other end of the reversing sheet is narrow, the stability of the reversing sheet and the wind power at the outlet are improved, and the tail end is prevented from being deformed due to overlarge stress.

Preferably, the positive rotating piece is arc-shaped, the reverse rotating piece is arc-shaped, the arc of the reverse rotating piece is larger than that of the positive rotating piece, the positive rotating piece is small arc-shaped and large in wind power, the arc of the reverse rotating piece mutually dials wind outwards, and the positive rotating piece can dial the wind outwards to increase the wind pressure when the wind power reaches a certain pressure, so that the wind is larger and faster.

Preferably, the arc direction of the reverse rotating sheet is opposite to that of the forward rotating sheet, the forward rotating wheel and the reverse rotating wheel rotate reversely under the action of the reverse rotator, and the arc directions of the forward rotating sheet and the reverse rotating sheet correspond to the rotating directions of the forward rotating wheel and the reverse rotating wheel respectively.

Preferably, sealing rings are arranged between the forward rotation shaft sleeve and the main shaft, and between the forward rotation wheel and the reverse rotator.

Preferably, the positive rotor is 7-shaped, the 7-shaped gap is attached to and fixedly connected with the positive rotor, and the 7-shaped gap can increase the contact area between the positive rotor and air and can also increase the firmness of the positive rotor.

Preferably, the reversing sheet is in a 7 shape, the 7-shaped notch is attached to and fixedly connected with the reversing wheel, and the 7 shape can increase the contact area of the reversing sheet and air and can also increase the firmness of the reversing sheet.

Preferably, the reverse rotating sheet and the forward rotating sheet in the center of the reverse rotating wheel and the forward rotating wheel are provided with notches.

The working principle and the process are as follows:

when the device works, the forward rotation wheel rotates forwards under the action of the driving device, the forward rotation wheel drives the reverse rotation wheel to rotate in the opposite direction through the bevel gear on the reverse rotator, and the forward rotation piece and the reverse rotation piece are driven by the forward rotation wheel and the reverse rotation wheel to rotate respectively.

The positive and negative rotating plates are small arc-shaped and large in wind power, the arcs of the reverse rotating plates mutually spread wind outwards, and when the wind power reaches a certain pressure, the positive and negative rotating plates spread the wind outwards to increase the wind pressure, so that the wind is larger and faster.

Compared with the prior art, the invention has the beneficial effects that:

the 7-shaped positive rotating piece and the 7-shaped negative rotating piece can increase the contact area of the rotating piece and air and can also increase the firmness of the rotating piece. The double-wheel structure of the forward rotating wheel and the reverse rotating wheel can effectively improve the air quantity and the air speed, thereby improving the efficiency of the fan.

Drawings

FIG. 1 is a schematic view of a two-wheel blower configuration;

FIG. 2 is a right side view of FIG. 1 with the blower housing removed;

FIG. 3 is a schematic view of the structure of the runner and the reverser;

FIG. 4 is a schematic view of the structure of the reverse wheel and the reverse sheet;

FIG. 5 is a rear view of FIG. 4;

FIG. 6 is a schematic structural view of a positive rotating wheel and a positive rotating sheet;

FIG. 7 is a rear view of FIG. 6;

FIG. 8 is a schematic view of an inverter configuration;

FIG. 9 is a perspective view of a positive rotation plate;

FIG. 10 is a perspective view of a reverse sheet;

in the figure: 1. a fan housing; 2. positively rotating the sheet; 3. a reverse sheet; 4. a main shaft; 5. a reverse shaft sleeve; 6. a reverse rotation wheel; 7. an inverter; 8. a bevel gear; 9. a bevel gear disc; 10. a positive rotation shaft sleeve; 11. a positive rotating wheel; 12. a gear hole.

Detailed Description

Embodiments of the invention are further described below with reference to the accompanying drawings:

as shown in fig. 1 to 10, a double-wheel blower comprises ablower housing 1, amain shaft 4 and a bracket, wherein theblower housing 1 is fixed on the bracket, the end of themain shaft 4 is fixedly connected with the bracket, areverse shaft sleeve 5, areverse wheel 6, areverse rotator 7, aforward wheel 11 and aforward shaft sleeve 10 are sequentially arranged on themain shaft 4, thereverse shaft sleeve 5, thereverse wheel 6, theforward shaft sleeve 10 and theforward wheel 11 are rotatably connected with themain shaft 4 through bearings, thereverse rotator 7 is fixedly connected with themain shaft 4, thereverse shaft sleeve 5 is fixedly connected with thereverse wheel 6, theforward shaft sleeve 10 is fixedly connected with theforward wheel 11, a bearing seat is arranged on the bearing of theforward shaft sleeve 10, and the bearing seat is connected with the bracket;

an air inlet is formed in the center of one side of the reverserotating wheel 6 of thefan shell 1, an air inlet hole is formed in the center of one side of the forwardrotating wheel 11, and an air outlet is formed in one end of thefan shell 1;

agear hole 12 is formed in thereverser 7, abevel gear 8 is arranged in thegear hole 12, thebevel gear 8 is connected with thereverser 7 through a fixed rod and a bearing or a shaft sleeve, the fixed rod is connected to thereverser 7, abevel gear disc 9 is fixedly arranged on each of the sides, facing thereverser 7, of the forwardrotation shaft sleeve 10 and the reverserotation shaft sleeve 5, and thebevel gear 8 is meshed with thebevel gear disc 9;

the forwardrotation shaft sleeve 10 and theforward rotation wheel 11 are fixedly provided with a plurality offorward rotation sheets 2, the reverserotation shaft sleeve 5 and thereverse rotation wheel 6 are fixedly provided with a plurality ofreverse rotation sheets 3, and the forwardrotation shaft sleeve 10 is connected with a driving device through a transmission belt pulley.

The end of the positiverotating piece 2 connected with the positiverotating shaft sleeve 10 is wide, the other end of the positive rotating piece is narrow, the stability of the positiverotating piece 2 and the outlet wind power are improved, and the deformation caused by overlarge stress at the tail end is prevented.

The end of the reversingsheet 3 connected with the reversingshaft sleeve 5 is wide, the other end of the reversing sheet is narrow, the stability of the reversingsheet 3 and the wind power at an outlet are improved, and the tail end is prevented from being deformed due to overlarge stress.

Thepositive rotor 2 is arc-shaped, thereverse rotor 3 is arc-shaped, the arc-shaped of thereverse rotor 3 is larger than that of thepositive rotor 2, thepositive rotor 2 is small arc-shaped and has large wind power, the arc-shaped of thereverse rotor 3 mutually dials wind outwards, and thepositive rotor 2 can dial the wind outwards to increase the wind pressure when the wind power reaches a certain pressure, so that the wind is faster and faster.

The arc direction of thereverse rotation sheet 3 is opposite to that of theforward rotation sheet 2, theforward rotation wheel 11 and thereverse rotation wheel 6 rotate reversely under the action of thereverse rotator 7, and the arc directions of theforward rotation sheet 2 and thereverse rotation sheet 3 correspond to the rotation directions of theforward rotation wheel 11 and thereverse rotation wheel 6 respectively.

Sealing rings are arranged between the forwardrotation shaft sleeve 10, the reverserotation shaft sleeve 5 and themain shaft 4, and sealing rings are arranged between theforward rotation wheel 11, thereverse rotation wheel 6 and thereverse rotator 7.

Thepositive rotor 2 is 7-shaped, the 7-shaped gap is attached to and fixedly connected with thepositive rotation wheel 11, and the 7-shaped gap can increase the contact area between thepositive rotor 2 and air and can also increase the firmness of thepositive rotor 2.

The reversingsheet 3 is in a 7 shape, a 7-shaped notch is attached to and fixedly connected with the reversingwheel 6, and the 7 shape can increase the contact area of the reversingsheet 3 and air and can also increase the firmness of thereversing sheet 3.

The reverse rotatingpiece 3 and the forward rotatingpiece 2 at the centers of the reverse rotatingwheel 6 and the forward rotatingwheel 11 are provided with notches.

In operation, under the action of the driving device, the forward rotatingwheel 11 rotates forward, the forward rotatingwheel 11 drives the reverserotating wheel 6 to rotate in the opposite direction through thebevel gear 8 on thereverse rotator 7, and the forwardrotating sheet 2 and the reverserotating sheet 3 are driven to rotate by the forwardrotating wheel 11 and the reverserotating wheel 6 respectively.

The forward and reverserotating pieces 2 are small and arc-shaped, thereverse rotating pieces 3 are large in arc-shape and mutually spread wind, and when the wind reaches a certain pressure, the forward and reverse rotating pieces spread the wind outwards to increase the wind pressure, so that the wind is larger and faster.

The 7-shaped positiverotating piece 2 and the 7-shaped negativerotating piece 3 can increase the contact area between the rotating pieces and air and can also increase the firmness of the rotating pieces. The double-wheel structure of the forwardrotating wheel 11 and the reverserotating wheel 6 can effectively improve the air quantity and the air speed, thereby improving the efficiency of the fan.

Claims (6)

1. The utility model provides a double round air-blower, includes fan shell (1), main shaft (4) and support, and fan shell fixes on the support, main shaft (4) tip and support fixed connection, its characterized in that: the main shaft (4) is sequentially provided with a reverse rotation shaft sleeve (5), a reverse rotation wheel (6), a reverse rotator (7), a forward rotation wheel (11) and a forward rotation shaft sleeve (10), the reverse rotation shaft sleeve (5), the reverse rotation wheel (6), the forward rotation shaft sleeve (10) and the forward rotation wheel (11) are rotatably connected with the main shaft (4) through bearings, the reverse rotator (7) is fixedly connected with the main shaft (4), the reverse rotation shaft sleeve (5) is fixedly connected with the reverse rotation wheel (6), the forward rotation shaft sleeve (10) is fixedly connected with the forward rotation wheel (11), a bearing seat is arranged on the bearing of the forward rotation shaft sleeve (10), and the bearing seat is connected with a support;

the center of one side of the counter rotating wheel of the fan shell is provided with an air inlet, the center of one side of the counter rotating wheel is provided with an air inlet hole, and one end of the fan shell is provided with an air outlet;

a gear hole (12) is formed in the reverser (7), a bevel gear (8) is arranged in the gear hole (12), the bevel gear (8) is connected with the reverser (7) through a fixing rod and a bearing or a shaft sleeve, the fixing rod is connected to the reverser, a bevel gear disc (9) is fixedly arranged on one sides of the forward rotating shaft sleeve (10) and the reverse rotating shaft sleeve (5) facing the reverser (7), and the bevel gear (8) is meshed with the bevel gear disc (9);

a plurality of forward rotating sheets (2) are fixedly arranged on the forward rotating shaft sleeve (10) and the forward rotating wheel (11), a plurality of reverse rotating sheets (3) are fixedly arranged on the reverse rotating shaft sleeve (5) and the reverse rotating wheel (6), and the forward rotating shaft sleeve (10) is connected with a driving device through a transmission belt pulley;

the forward rotating sheet (2) is arc-shaped, the reverse rotating sheet (3) is arc-shaped, and the arc shape of the reverse rotating sheet (3) is larger than that of the forward rotating sheet (2);

the arc of the reverse rotation sheet (3) is opposite to the arc of the forward rotation sheet (2).

2. The dual wheel blower of claim 1, wherein: the forward rotation sheet (2) is wide at one end connected with the forward rotation shaft sleeve (10) and narrow at the other end.

3. The dual wheel blower of claim 1, wherein: the end of the reversing sheet (3) connected with the reversing shaft sleeve (5) is wide, and the other end of the reversing sheet is narrow.

4. The dual wheel blower of claim 1, wherein: the forward rotation sheet (2) is in a 7 shape, and a 7-shaped gap is attached and fixedly connected with the forward rotation wheel (11).

5. The dual wheel blower of claim 1, wherein: the reversing sheet (3) is in a 7 shape, and a 7-shaped gap is attached to and fixedly connected with the reversing wheel (6).

6. The dual wheel blower of claim 1, wherein: sealing rings are arranged between the forward rotation shaft sleeve (10), the reverse rotation shaft sleeve (5) and the main shaft (4), and sealing rings are arranged between the forward rotation wheel (11), the reverse rotation wheel (6) and the reverse rotator (7).

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