Variable pitch motor for wind power generation

Abstract

The utility model discloses a variable-pitch motor for wind power generation, and belongs to the technical field of variable-pitch driving motors. Comprising a variable-pitch driving motor body, a convex base is fixedly arranged on the variable-pitch driving motor body, the variable-pitch driving motor body is connected with an air guide cylinder in an assembled mode, the air guide cylinder is fixedly connected with two L-shaped plates and four arc-shaped inserting plates, and the bottom faces of the L-shaped plates are connected with the convex base in an attached mode. The wind guide cylinder is installed outside the variable-pitch driving motor body in an inserted and sleeved mode and is stably and fixedly installed, so that the variable-pitch driving motor body can work stably, the angle of the wind power generation blades is adjusted, and the axial flow fan installed on the wind guide cylinder extracts heat energy dissipated by heat dissipation guide bars of the variable-pitch driving motor body through the wind guide cylinder and rapidly discharges the heat energy for treatment. Because part of the heat dissipation conducting bars of the variable-pitch driving motor body are arranged outside the air duct, the variable-pitch driving motor body retains the natural heat dissipation function, and meanwhile, the axial flow fan is used for air draft type rapid heat dissipation treatment.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of variable pitch drive motors, in particular to a variable pitch motor for wind power generation. BACKGROUND

[0002] The variable pitch motor for wind power generation plays a crucial role. Through the variable pitch motor, the angle of the fan blade can be adjusted, so that the blade can automatically adjust according to the change of wind direction and wind speed, thereby maximizing the capture of wind energy, improving the power generation efficiency, and maintaining the stable output of the wind turbine. The existing public technology number CN213637297U proposes a dustproof device for a wind power variable pitch motor. The variable pitch drive motor body is placed inside the dustproof box for work. The variable pitch drive motor body is cooled by the rotating fan blades driven by the motor. The dust in the external air is filtered out by the first filter screen on the air inlet hole, avoiding entering the inside of the dustproof box, thereby realizing dust prevention while cooling the variable pitch drive motor body, effectively prolonging the service life of the variable pitch drive motor body. In view of the above-mentioned related technology, the utility model person believes that the following defects still exist: the variable pitch motor in the comparative document is completely installed in the dustproof box. Because the variable pitch motor needs stable transmission capacity, the strength requirement of the dustproof box is high, which makes the cooling of the variable pitch motor completely dependent on the built-in fan, and the variable pitch motor loses the natural cooling function of its own cooling strip. In view of this, a variable pitch motor for wind power generation is proposed. CONTENT OF THE UTILITY MODEL

[0003] 1. Technical problem to be solved

[0004] The purpose of the present application is to provide a variable pitch motor for wind power generation, which solves the technical problem that the variable pitch motor in the comparative document is completely installed in the dustproof box. Because the variable pitch motor needs stable transmission capacity, the strength requirement of the dustproof box is high, which makes the cooling of the variable pitch motor completely dependent on the built-in fan, and the variable pitch motor loses the natural cooling function of its own cooling strip. The technical effect is achieved by inserting the wind guide cylinder into the variable pitch drive motor body outside and stably fixing it, so that the variable pitch drive motor body can work stably, and the angle of the wind power paddle can be adjusted. The axial flow fan installed on the wind guide cylinder extracts the heat energy emitted by the variable pitch drive motor body cooling strip through the wind guide cylinder, and quickly discharges and processes it. Because part of the variable pitch drive motor body cooling strip is placed outside the wind guide cylinder, the variable pitch drive motor body retains the natural cooling function, and at the same time utilizes the axial flow fan to achieve the technical effect of rapid cooling and processing.

[0005] 2. Technical scheme

[0006] The technical scheme of the application provides a wind power generation variable pitch motor, which comprises a variable pitch driving motor body, a convex base fixedly arranged on the variable pitch driving motor body, a wind guide cylinder assembledly connected to the variable pitch driving motor body, two L-shaped plates and four arc-shaped insertion plates fixedly connected to the wind guide cylinder, the bottom surface of the L-shaped plate being attached to the convex base, the wind guide cylinder being installed outside the variable pitch driving motor body through the four arc-shaped insertion plates, three limiting blocks fixedly arranged on the arc-shaped insertion plate, two threaded rods threadedly connected between the limiting block and the variable pitch driving motor body, a plurality of second threaded holes formed in the end surface of the wind guide cylinder, a dust filter and an axial flow fan detachably installed on the wind guide cylinder, and a PLC controller fixedly connected to the wind guide cylinder.

[0007] By adopting the above technical scheme, the variable pitch driving motor body is used for the angle of the wind power generation blade, in order to realize the rapid heat dissipation treatment of the variable pitch driving motor body, the wind guide cylinder is insertedly sleeved outside the variable pitch driving motor body, the wind guide cylinder is fixedly connected to the two L-shaped plates and the four arc-shaped insertion plates, the variable pitch driving motor body is fixedly connected to the convex base, the L-shaped plate can be inserted into the convex base and be threadedly fixedly installed by using a bolt, the arc-shaped insertion plate is inserted along the outside of the variable pitch driving motor body and is threadedly connected to the variable pitch driving motor body by using the threaded rod and the limiting block, so that the wind guide cylinder and the variable pitch driving motor body can be stably fixedly connected, a plurality of second threaded holes are formed in the end surface of the wind guide cylinder, a bolt can also be used to limit and fix the installation seat, the dust filter and the axial flow fan are installed on the wind guide cylinder, the axial flow fan extracts the heat energy dissipated from the heat dissipation guide strips of the variable pitch driving motor body from the wind guide cylinder and rapidly discharges it, the dust filter can filter dust, and the wind guide cylinder is not completely closed around the variable pitch driving motor body, so that the variable pitch driving motor body can partially leak out, so that the axial flow fan can realize rapid heat dissipation by air extraction and can also realize the natural heat dissipation function of the variable pitch driving motor body.

[0008] Optionally, one first threaded hole is formed in each corner of the convex base, and two through holes are formed in each L-shaped plate.

[0009] By adopting the above technical scheme, after the wind guide cylinder is insertedly sleeved outside the variable pitch driving motor body, the L-shaped plate can be arranged on the convex base, so that a bolt can be used to threadedly penetrate the convex base, and the L-shaped plate can be limitingly installed on the convex base.

[0010] Optionally, four guide grooves are arranged along the circumference of the rear end cover of the variable pitch driving motor body, the arc-shaped insertion plate is insertedly installed along the guide groove, three screw blocks are fixedly arranged on each heat dissipation guide strip at each guide groove of the variable pitch driving motor body, and the threaded rod is threadedly installed between the limiting block and the screw block.

[0011] By adopting the technical scheme, when the air duct is installed in plug-in connection with the variable-pitch driving motor body, the arc-shaped plug-in plate is installed in plug-in connection along the guide groove, the limiting blocks on the arc-shaped plug-in plate are arranged in one-to-one correspondence with the screw blocks, and then the screw rod is installed in screw connection between the limiting blocks and the screw blocks, so that the air duct is fixed and limited with the variable-pitch driving motor body.

[0012] Optionally, the air duct is internally provided with an air guide groove and a plug-in groove, the dust filter plate is installed in plug-in connection at the plug-in groove and is in screw connection with the air duct through a screw, and the axial flow fan comprises a volute, a fan and an electric motor, and a bottom frame is fixedly arranged at the bottom end of the axial flow fan, and the bottom frame is in screw connection with the air duct through bolts at four corners of the bottom frame.

[0013] By adopting the technical scheme, the inner diameter of the air duct is greater than the variable-pitch driving motor body, the axial flow fan extracts the heat energy emitted by the heat dissipation bars of the variable-pitch driving motor body from the air guide groove and quickly discharges the heat energy, the heat dissipation function of the variable-pitch driving motor body is accelerated, and the dust around the variable-pitch driving motor body is collected by the dust filter plate.

[0014] Optionally, a connecting seat is further fixedly arranged on the air duct, the connecting seat is fixedly connected with a PLC controller, and the PLC controller is electrically connected with the axial flow fan.

[0015] By adopting the technical scheme, the PLC controller is electrically connected with the axial flow fan, the axial flow fan can be controlled to be turned on and off through the editable logic controller, and thus the axial flow fan can be controlled to extract air and dissipate heat from the variable-pitch driving motor body during the operation of the variable-pitch driving motor body.

[0016] 3. Beneficial effects

[0017] One or more technical schemes provided in the technical scheme have at least the following technical effects or advantages: the variable-pitch driving motor body is stably and fixedly installed outside by being plug-in connected with the air duct, the variable-pitch driving motor body can stably work, the angle of the wind turbine blade can be adjusted, the heat energy emitted by the heat dissipation bars of the variable-pitch driving motor body is extracted by the axial flow fan installed on the air duct through the air duct and is quickly discharged, part of the heat dissipation bars of the variable-pitch driving motor body are arranged outside the air duct, and thus the variable-pitch driving motor body can retain the natural heat dissipation function and simultaneously utilize the axial flow fan to quickly dissipate heat by air extraction. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 FIG. 1 is a schematic structural diagram of a variable-pitch motor for wind power generation according to an embodiment of the present application;

[0019] Figure 2 FIG. 2 is a schematic structural diagram of a variable-pitch driving motor body of a variable-pitch motor for wind power generation according to an embodiment of the present application.

[0020] Figure 3 A wind turbine variable pitch motor guide tube, axial flow fan and PLC controller structure schematic diagram disclosed for a preferred embodiment of the present application;

[0021] Explanation of reference numerals in the drawing: 1, variable pitch drive motor body; 11, convex base; 111, first screw hole; 12, guide groove; 13, screw block; 2, guide tube; 21, second screw hole; 22, guide groove; 23, plug-in slot; 24, dust filter plate; 25, connecting seat; 3, L-shaped plate; 31, perforated hole; 4, arc-shaped plug-in plate; 41, limiting block; 42, screw rod; 5, axial flow fan; 51, bottom frame; 6, PLC controller. DETAILED DESCRIPTION

[0022] The present application is further described in detail below with reference to the accompanying drawings.

[0023] REFERENCE Figures 1 to 3The embodiment of the application provides a wind power generation variable pitch motor, which comprises a variable pitch driving motor body 1, a convex base 11 is fixedly arranged on the variable pitch driving motor body 1, a wind guide cylinder 2 is assembledly connected to the variable pitch driving motor body 1, the wind guide cylinder 2 is fixedly connected with two L-shaped plates 3 and four arc-shaped insertion plates 4, the bottom surface of the L-shaped plate 3 is attached to the convex base 11, the wind guide cylinder 2 is installed outside the variable pitch driving motor body 1 through the four arc-shaped insertion plates 4, three limiting blocks 41 are fixedly arranged on the arc-shaped insertion plate 4, two screw rods 42 are threadedly connected between the limiting block 41 and the variable pitch driving motor body 1, a plurality of second screw holes 21 are formed in the end surface of the wind guide cylinder 2, a dust filter plate 24 and an axial flow fan 5 are detachably installed on the wind guide cylinder 2, the wind guide cylinder 2 is fixedly connected with a PLC controller 6, the variable pitch driving motor body 1 is used for the angle of a wind power generation blade, in order to realize rapid heat dissipation of the variable pitch driving motor body 1, the wind guide cylinder 2 is insertedly sleeved outside the variable pitch driving motor body 1, the wind guide cylinder 2 is fixedly connected with the two L-shaped plates 3 and the four arc-shaped insertion plates 4, the variable pitch driving motor body 1 is fixedly connected with the convex base 11, the L-shaped plate 3 can be inserted into the convex base 11 and is screw-fixedly installed by using a bolt, the arc-shaped insertion plate 4 is inserted outside the variable pitch driving motor body 1 and is screw-connected with the variable pitch driving motor body 1 by using the screw rod 42 and the limiting block 41, so that the wind guide cylinder 2 and the variable pitch driving motor body 1 can be stably and fixedly connected, a plurality of second screw holes 21 are formed in the end surface of the wind guide cylinder 2, and a bolt can be used for limiting and fixing the second screw holes 21 in the mounting seat, the dust filter plate 24 and the axial flow fan 5 are installed on the wind guide cylinder 2, the axial flow fan 5 extracts the heat energy dissipated by the variable pitch driving motor body 1 from the wind guide cylinder 2 and rapidly discharges the heat energy, dust can be filtered by arranging the dust filter plate 24, and the wind guide cylinder 2 is not completely closed and wrapped around the variable pitch driving motor body 1, so that the variable pitch driving motor body 1 can partially leak out, so that the axial flow fan 5 can realize rapid heat dissipation by air extraction, and the natural heat dissipation function of the variable pitch driving motor body 1 can also be realized.

[0024] With reference to Figure 2 and Figure 3 A first screw hole 111 is formed at each corner of the convex base 11, two through holes 31 are formed in the L-shaped plate 3, the through holes 31 are arranged in one-to-one correspondence with the first screw holes 111, after the wind guide cylinder 2 is insertedly sleeved outside the variable pitch driving motor body 1, the L-shaped plate 3 can be arranged on the convex base 11, so that a bolt is used for threadingly penetrating the convex base 11, and the L-shaped plate 3 is limitingly installed on the convex base 11.

[0025] With reference to Figure 2 and Figure 3, the rear end cover of the variable pitch driving motor body 1 is provided with four guide grooves 12 along the circumference, the arc-shaped insertion plate 4 is inserted and installed along the guide groove 12, three screw blocks 13 are fixedly arranged on the two heat dissipation guide bars of the variable pitch driving motor body 1 at each guide groove 12, the limiting block 41 and the screw block 13 are threadedly connected with the screw rod 42, when the air duct 2 is inserted and matched with the variable pitch driving motor body 1, the arc-shaped insertion plate 4 is inserted and installed along the guide groove 12, and the limiting block 41 on the arc-shaped insertion plate 4 is arranged one by one corresponding to the screw block 13, and then the limiting block 41 and the screw block 13 are threadedly connected with the screw rod 42, so that the air duct 2 and the variable pitch driving motor body 1 are limited and fixed.

[0026] With reference to Figure 1 and Figure 3 , the air duct 2 is provided with an air guide groove 22 and an insertion groove 23, the dust filter plate 24 is inserted and installed at the insertion groove 23 and is threadedly connected with the air duct 2 through a screw, the axial flow fan 5 includes a volute, a fan and an electric motor, the axial flow fan 5 is fixedly provided with a bottom frame 51 at the bottom end, the bottom frame 51 is threadedly connected with the air duct 2 at four corners through a bolt, the inner diameter of the air duct 2 is greater than the variable pitch driving motor body 1, the axial flow fan 5 extracts the heat energy emitted by the heat dissipation guide bars of the variable pitch driving motor body 1 from the air guide groove 22 and quickly discharges, so as to accelerate the heat dissipation function of the variable pitch driving motor body 1, and the dust filter plate 24 is used to filter the dust, so that the floating dust around the variable pitch driving motor body 1 is collected by the dust filter plate 24.

[0027] With reference to Figure 1 and Figure 3 , the air duct 2 is further fixedly provided with a connecting seat 25, the connecting seat 25 is fixedly connected with the PLC controller 6, the PLC controller 6 is electrically connected with the axial flow fan 5, the PLC controller 6 is electrically connected with the axial flow fan 5, the axial flow fan 5 can be controlled to be started and stopped through the editable logic controller, so that the axial flow fan 5 can be controlled to extract air and dissipate heat for the variable pitch driving motor body 1 during the operation of the variable pitch driving motor body 1.

[0028] Working principle: the variable pitch drive motor body 1 is used for the angle of wind turbine blade, in order to realize the quick heat dissipation treatment of variable pitch drive motor body 1, the air duct 2 is inserted into the outside of variable pitch drive motor body 1, and the air duct 2 is fixedly connected with two L-shaped plates 3 and four arc-shaped insertion plates 4, the variable pitch drive motor body 1 is fixedly connected with a convex base 11, the L-shaped plate 3 can be inserted into the convex base 11, and the L-shaped plate 3 can be fixedly installed by using bolts, the arc-shaped insertion plate 4 is inserted along the outside of the variable pitch drive motor body 1, and is fixedly connected with the variable pitch drive motor body 1 by using the limiting block 41 and the screw rod 42, so that the air duct 2 and the variable pitch drive motor body 1 can be stably fixedly connected, a plurality of second screw holes 21 are formed in the end surface of the air duct 2, and the second screw holes 21 can be fixedly installed on the mounting seat by using bolts, the dust filter plate 24 and the axial flow fan 5 are installed on the air duct 2, the axial flow fan 5 extracts the heat energy dissipated from the heat dissipation guide strip of the variable pitch drive motor body 1 and quickly discharges the heat energy, the dust filter plate 24 can filter dust, and the air duct 2 is not completely closed and wrapped around the variable pitch drive motor body 1, and the variable pitch drive motor body 1 partially leaks out, so that the axial flow fan 5 can realize the quick heat dissipation of the air extraction type, and the natural heat dissipation function of the variable pitch drive motor body 1 can also be realized.

Claims

1. A motor for wind power generation for pitch change, characterized by: The utility model relates to a variable pitch drive motor body (1) is provided with convex base (11) on it, variable pitch drive motor body (1) is assembledly connected with wind funnel (2), wind funnel (2) is fixedly connected with two L-shaped plates (3) and four arc-shaped insert plates (4), L-shaped plate (3) bottom surface and convex base (11) are connected in place, wind funnel (2) is installed outside variable pitch drive motor body (1) through four arc-shaped insert plates (4), three limit blocks (41) are fixedly arranged on the arc-shaped insert plate (4), the limit block (41) is screw connected with two screw rods (42) between variable pitch drive motor body (1), a plurality of second screw holes (21) are formed in the end face of wind funnel (2), dust filter plate (24) and axial flow fan (5) are detachably installed on wind funnel (2), wind funnel (2) is fixedly connected with PLC controller (6).

2. A wind power generation variable pitch motor according to claim 1, characterized in that: The convex base (11) is provided with a first screw hole (111) at each corner, and the L-shaped plate (3) is provided with two perforations (31) at each corner.

3. The wind power generation variable pitch motor according to claim 1, characterized in that: The rear end cover of the variable pitch drive motor body (1) is provided with four guide grooves (12) along the circumference, the arc-shaped insert plate (4) is inserted and installed along the guide groove (12), and three screw blocks (13) are fixedly arranged on the two heat dissipation guide strips of the variable pitch drive motor body (1) at each guide groove (12).

4. The wind power generation variable pitch motor according to claim 1, characterized in that: The wind funnel (2) is provided with a wind guide groove (22) and an insertion groove (23), the dust filter plate (24) is inserted and installed in the insertion groove (23) and is screw connected with the wind funnel (2) through screws, and the axial flow fan (5) comprises a volute, a fan and an electric motor.

5. The wind power variable pitch motor of claim 1, wherein: The wind funnel (2) is further provided with a connecting seat (25), the connecting seat (25) is fixedly connected with the PLC controller (6), and the PLC controller (6) is electrically connected with the axial flow fan (5).

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