CN216767779U

CN216767779U - Direct-drive efficient impeller

Info

Publication number: CN216767779U
Application number: CN202122512477.6U
Authority: CN
Inventors: 成志高; 李永
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-19
Filing date: 2021-10-19
Publication date: 2022-06-17
Anticipated expiration: 2031-10-19

Abstract

The utility model discloses a direct-drive high-efficiency impeller which comprises a permanent magnet synchronous motor, an impeller hub, blades and a fixed tailstock. The permanent magnet synchronous motor is provided with a synchronous driver for use, compared with the original asynchronous motor, the permanent magnet synchronous motor has higher efficiency, the running power consumption is obviously reduced, a speed reducer is not used, the failure rate of the equipment can be greatly reduced, maintenance is not needed in the service life cycle of the equipment, the structure of the equipment is simplified, the transmission efficiency is improved, and the energy consumption is reduced.

Description

Direct-drive efficient impeller

Technical Field

The utility model relates to the technical field of flow pushers, in particular to a direct-drive efficient flow pusher.

Background

The impeller is indispensable equipment in industrial and municipal sewage treatment processes, generates strong water flow with low tangential flow, and can be used for creating water flow in the stages of water circulation in a pool, sludge homogenization, nitrification, denitrification and dephosphorization. The existing impeller adopts a large-diameter blade to rotate at a low speed to cut and push water flow (compared with a high speed, higher impeller efficiency can be obtained). The power source generally adopts asynchronous motor to do the drive because asynchronous motor can't accomplish very low rotational speed to when reducing the rotational speed, the efficiency of motor also can follow by a wide margin and descend, and the asynchronous motor of same power simultaneously, the volume of low speed is bigger, more heavy. Therefore, in order to limit the operation efficiency of the equipment and the volume of the underwater environment (the excessive volume under the water can block water flow and is not beneficial to pushing fluid), a scheme of a high-speed asynchronous motor and a speed reducer is generally adopted. Namely, the existing impeller is provided with a hydraulic impeller blade. And II, a speed reducer. And thirdly, a motor. Fourthly, installing the system. The motor and the reducer provide power for the whole device, and the reducer needs to output large torque for 24 hours to provide power and torque for the operation of the hydraulic component in the special environment of underwater operation. In addition, the impeller is underwater equipment, and maintenance is complex, so the speed reducer of the submersible impeller is the highest part of equipment failure rate, the purchasing cost and the maintenance cost of accessories are high, and the operation cost of water environment treatment enterprises is increased. Meanwhile, the efficiency of the whole device is reduced due to gear or cycloid friction loss in the deceleration process, the power consumption of the device in operation is directly increased, and the operation cost of water environment treatment enterprises is further increased.

SUMMERY OF THE UTILITY MODEL

In view of the problems in the prior art, the utility model discloses a direct-drive efficient impeller, which adopts the technical scheme that the direct-drive efficient impeller comprises the following steps: a supporting frame, wherein a rubber base is fixedly arranged on the supporting frame, a fixed tailstock is fixedly arranged on the rubber base, a permanent magnet synchronous motor is fixedly arranged on the fixed tailstock, the left end of the permanent magnet synchronous motor is provided with a wiring sealing chamber, a cable is fixedly arranged on the left end surface of the wiring sealing chamber, a main shaft is fixedly and rotatably arranged in the middle of the inner cavity of the permanent magnet synchronous motor, the winding is wrapped on the periphery of the main shaft, a thermistor is embedded in the winding, a double-roller bearing is arranged on the right side of the winding, the double-raceway bearing is sleeved on the main shaft, an oil chamber is arranged at the right end of the double-raceway bearing, the oil chamber is arranged around the main shaft, a mechanical sealing sleeve is arranged at the joint of the right end of the oil chamber and the main shaft, and a propeller wheel hub is fixedly arranged on the main shaft at the right end of the mechanical seal sleeve, and blades are arranged on the propeller wheel hub at equal intervals.

According to a preferable scheme of the utility model, the fixed tailstock is of a U-shaped structure, the left end of the fixed tailstock is fixedly buckled and connected with the support frame, lubricating thin oil is contained in the oil chamber, and the protection upper limit of a thermistor embedded in the winding is 80 ℃.

As a preferable scheme of the utility model, the main shaft is made of 20CRMNTI alloy structural steel, the mechanical seal sleeve is made of YG6 tungsten alloy, and the impeller hub is cast by ductile iron 400.

The utility model has the beneficial effects that: the permanent magnet synchronous motor is used by being equipped with a synchronous driver, compared with the original asynchronous motor, the permanent magnet synchronous motor has higher efficiency, the running power consumption is obviously reduced, a speed reducer is not used, the failure rate of the equipment can be greatly reduced, maintenance is not needed in the service life cycle of the equipment, the structure of the equipment is simplified, the transmission efficiency is improved, and the energy consumption is reduced.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a sectional view of the entire structure of the permanent magnet synchronous motor of the present invention.

In the figure: the technical scheme is that the motor comprises a 1-permanent magnet synchronous motor, a 101-main shaft, a 102-rare earth permanent magnet motor, a 103-mechanical seal sleeve, a 104-double-roller bearing, a 105-wiring seal chamber, a 106-oil chamber, a 107-winding, a 108-cable, a 2-fixed tailstock, a 3-support frame, a 301-rubber base, a 4-paddle wheel hub and a 5-paddle.

Detailed Description

Example 1

As shown in fig. 1 to fig. 2, the direct-drive high-efficiency impeller of the present invention adopts a technical solution that includes: the supporting frame 3, a rubber base 301 is fixedly installed on the supporting frame 3, a fixed tailstock 2 is fixedly installed on the rubber base 301, a permanent magnet synchronous motor 1 is fixedly installed on the fixed tailstock 2, a wiring sealing chamber 105 is formed at the left end of the permanent magnet synchronous motor 1, a cable 108 is fixedly installed on the left end face of the wiring sealing chamber 105, a main shaft 101 is fixedly installed in the middle of an inner cavity of the permanent magnet synchronous motor 1 in a rotating mode, the winding 102 is wrapped on the periphery of the main shaft 101, a thermistor is embedded in the winding 102, a double-raceway bearing 104 is arranged on the right side of the winding 102, the double-raceway bearing 104 is sleeved on the main shaft 101, an oil chamber 106 is formed at the right end of the double-raceway bearing 104, the oil chamber 106 is arranged around the main shaft 101, a mechanical sealing sleeve 103 is arranged at the joint of the right end of the oil chamber 106 and the main shaft 101, and a paddle wheel hub 4 is fixedly installed on the main shaft 101 at the right end of the mechanical sealing sleeve 103, the paddle wheel hub 4 is equidistantly provided with blades 5.

The fixed tailstock 2 is of a U-shaped structure, the left end of the fixed tailstock is fixedly connected with the support frame 3 in a buckling mode, lubricating thin oil is contained in the oil chamber 106, and the upper limit of protection of a thermistor embedded in the winding 102 is 80 ℃.

The main shaft 101 is made of 20CRMNTI alloy structural steel, the mechanical seal sleeve 103 is made of YG6 tungsten alloy, and the impeller hub 4 is cast by ductile iron 400.

The working principle of the utility model is as follows: the utility model directly generates the rotating speed and the torque required by the operation of the paddle 5 in water through the permanent magnet synchronous motor 1. The left end face of the permanent magnet synchronous motor 1 is additionally provided with a wiring sealing chamber 105, the right end face of the permanent magnet synchronous motor 1 is additionally provided with an oil chamber 106, and the oil chamber 106 is sealed by a mechanical sealing sleeve 103 so as to meet the operation requirement of the utility model in an underwater environment, the permanent magnet synchronous motor 1 is clamped by using a U-shaped fixed tailstock 2, the fixed tailstock 2 can support the permanent magnet synchronous motor 1 through a support frame 3 and can bear the rotating torque and the reverse thrust generated when the blades 5 operate.

The cable described herein is of the type YCW, and the components and circuit connections not described in detail are prior art.

Although the present invention has been described in detail with reference to the specific embodiments, the present invention is not limited to the above embodiments, and various changes and modifications without inventive changes may be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A direct-drive efficient impeller, comprising: the supporting frame (3), fixed mounting has rubber base (301) on the supporting frame (3), fixed mounting has fixed tailstock (2) on rubber base (301), fixed mounting has permanent-magnet synchronous motor (1) on fixed tailstock (2), wiring seal chamber (105) have been seted up to permanent-magnet synchronous motor (1) left end, fixed mounting has cable (108) on the terminal surface of wiring seal chamber (105) left side, permanent-magnet synchronous motor (1) inner chamber middle part fixed rotation installs main shaft (101), the peripheral parcel of main shaft (101) has winding (102), winding (102) are embedded to have thermistor, winding (102) right side is provided with two raceway bearings (104), two raceway bearings (104) cup joint on main shaft (101), oil chamber (106) have been seted up to two raceway bearings (104) right-hand member, oil chamber (106) encircle main shaft (101), the mechanical sealing sleeve (103) is arranged at the joint of the right end of the oil chamber (106) and the main shaft (101), a paddle wheel hub (4) is fixedly mounted on the main shaft (101) at the right end of the mechanical sealing sleeve (103), and blades (5) are equidistantly mounted on the paddle wheel hub (4).

2. The direct-drive efficient flow impeller of claim 1, wherein: the fixed tailstock (2) is of a U-shaped structure, the left end of the fixed tailstock is fixedly buckled with the support frame (3), lubricating thin oil is contained in the oil chamber (106), and the upper limit of protection of the thermistor embedded in the winding (102) is 80 ℃.

3. The direct-drive efficient flow impeller of claim 1, wherein: the main shaft (101) is made of 20CRMNTI alloy structural steel, the mechanical sealing sleeve (103) is made of YG6 tungsten alloy, and the impeller hub (4) is cast by ductile iron 400.