CN215333231U

CN215333231U - Pitch device for servo driver EPD45

Info

Publication number: CN215333231U
Application number: CN202121627965.5U
Authority: CN
Inventors: 陈怀龙; 颜丙腾; 姚佳辉
Original assignee: Shanghai Demai Electric Technology Co ltd
Current assignee: Shanghai Demai Electric Technology Co ltd
Priority date: 2021-07-18
Filing date: 2021-07-18
Publication date: 2021-12-28
Anticipated expiration: 2031-07-18

Abstract

The utility model discloses a variable-pitch device for a servo driver EPD, which comprises a motor, wherein a transmission end of the motor is fixedly connected with a connecting shaft, the lower end of the connecting shaft is fixedly provided with a variable-pitch box body, the outer end of the variable-pitch box body is fixedly provided with a blade, the outer end of the blade is fixedly provided with a blade, the outer end of the middle part of the blade is fixedly provided with a waterproof shell, the outer end of the waterproof shell is fixedly provided with a waterproof pad, the inside of the waterproof shell is fixedly provided with a bearing I, the middle part of the upper end inside the variable-pitch box body is fixedly provided with a supporting rod, the lower end of the supporting rod is fixedly provided with a bearing II, and the outer end of the middle part of the blade is fixedly provided with a gear ring. This a become oar device for servo driver EPD45 utilizes the meshing of electric putter accessible ring gear and pinion rack to rotate the leaf axle, and the effectual convenience that improves become the oar regulation makes simultaneously that the inside setting of change oar device is more simple and clear, the maintenance and the maintenance in the later stage of being convenient for.

Description

Pitch device for servo driver EPD45

Technical Field

The utility model relates to the technical field of pitch control, in particular to a pitch control device for a servo driver EPD 45.

Background

A wind driven generator blade adjusting device is characterized in that when wind power is large, the incidence angle of a blade is reduced through the adjusting device; when wind power is small, the attack angle of the blades is increased through the adjusting device, the pitch angle of the pitch-variable mechanism is adjusted at any time near (above) the rated wind speed according to the change of the wind speed, and absorbed mechanical energy is controlled, so that on one hand, the maximum energy (corresponding to the rated power) is ensured to be obtained, and meanwhile, the impact of the wind power on the wind turbine is reduced.

The existing variable-pitch device mostly controls the angle of a fan blade through a hydraulic motor, but the structure of the hydraulic motor is too complex, the blades are connected together, the operation difficulty is high during daily maintenance and repair, and meanwhile, ground personnel are not convenient enough when the variable-pitch device is operated daily.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a variable pitch device for a servo driver EPD45, and aims to solve the problems that the hydraulic motor is too complex in structure, blades are connected together, the operation difficulty is high during daily maintenance and repair, and meanwhile, ground personnel are not convenient to operate the variable pitch device in daily life.

In order to achieve the purpose, the utility model provides the following technical scheme: a variable propeller device for a servo driver EPD comprises a motor, wherein a transmission end of the motor is fixedly connected with a connecting shaft, the lower end of the connecting shaft is fixedly provided with a variable propeller box body, the outer end of the variable propeller box body is fixedly provided with a propeller shaft, the outer end of the propeller shaft is fixedly provided with a propeller blade, the outer end of the middle part of the propeller shaft is fixedly provided with a waterproof shell, the outer end of the waterproof shell is fixedly provided with a waterproof pad, the inside of the waterproof shell is fixedly provided with a bearing I, the middle part of the upper end inside the variable propeller box body is fixedly provided with a supporting rod, the lower end of the supporting rod is fixedly provided with a bearing II, the outer end of the middle part of the propeller shaft is fixedly provided with a gear ring, the upper end of the inside of the variable propeller box body is fixedly provided with an electric push rod, the transmission end of the electric push rod is fixedly provided with a push rod, the lower end of the push rod is fixedly provided with a toothed plate, and the left end and right end of the lower end of the variable propeller box body are fixedly provided with a wind speed sensor, and a control box is fixedly arranged at the lower end inside the variable pitch box body.

Preferably, the blade shafts are symmetrically distributed at the outer end of the pitch-variable box body, the inner ends of the blade shafts extend into the pitch-variable box body, and the pitch-variable box body is driven to rotate by wind power through the installation of the blade shafts.

Preferably, the bearing I is located at the outer end of the blade shaft, the outer ring of the bearing I is fixedly connected with the variable-pitch box body, and the blade shaft can not rub with the variable-pitch box body when rotating by the aid of the bearing I, so that the variable-pitch box body and the blade shaft are prevented from being abraded due to long-term friction, and the service life of the variable-pitch box body and the blade shaft is effectively prolonged.

Preferably, the inner ring of the bearing II is fixedly connected with the blade shaft, the gear ring is located inside the variable-pitch box body, different blade shafts can be independently rotated and adjusted by installing the bearing II, the supporting rod is suspended, the rotating process can be more stable, and the rotating stability of the blade shaft is further improved.

Preferably, electric putter is in the inside upper end evenly distributed of the variable pitch box, the pinion rack is connected with the ring gear meshing, and through installation electric putter, the meshing of accessible ring gear and pinion rack rotates the blade shaft, the effectual convenience that improves the regulation of becoming the oar makes simultaneously that the inside of the oar device that becomes sets up more simple and clear, the later maintenance and the maintenance of being convenient for.

Preferably, the control box is electrically connected with the wind speed sensor, the control box is electrically connected with the electric push rod, and is in signal connection with ground equipment through the installation of the control box, so that ground workers can control variable pitch operation in real time, the convenience of operation of the workers is further improved, meanwhile, the control box is electrically connected with the wind speed sensor, the high-altitude wind speed can be reported to the ground in time, and the change of wind power of different unit positions is further improved.

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

1. according to the variable pitch device for the servo driver EPD45, the blade shaft can be rotated through the meshing of the gear ring and the toothed plate by utilizing the electric push rod, the convenience of variable pitch adjustment is effectively improved, meanwhile, the internal arrangement of the variable pitch device is simpler and clearer, and later maintenance and repair are facilitated;

2. according to the variable-pitch device for the servo driver EPD45, the bearing I is utilized, so that the blade shaft cannot generate friction with the variable-pitch box body when rotating, the abrasion of the variable-pitch box body and the blade shaft caused by long-term friction is avoided, and the service life of the variable-pitch device is effectively prolonged;

3. this a become oar device for servo driver EPD45 utilizes control box and ground equipment to carry out signal connection for ground staff can be real-time to becoming the oar operation and control, further improvement the convenience of staff's operation, simultaneously with wind speed sensor electric connection, can be timely report high altitude wind speed to ground, further improvement the change of different unit position wind-force.

Drawings

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

FIG. 2 is a schematic cross-sectional view of a pitch box according to the present invention;

FIG. 3 is a schematic perspective view of a bearing according to the present invention;

fig. 4 is a schematic perspective view of the electric putter of the present invention.

In the figure: 1. a motor; 2. a connecting shaft; 3. a variable-pitch box body; 4. a leaf shaft; 5. a paddle blade; 6. a waterproof shell; 7. a waterproof pad; 8. a first bearing; 9. a support bar; 10. a second bearing; 11. a ring gear; 12. an electric push rod; 13. a push rod; 14. a toothed plate; 15. a wind speed sensor; 16. and a control box.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a variable pitch device for a servo driver EPD45 comprises a motor 1, a connecting shaft 2 is fixedly connected with a transmission end of the motor 1, a variable pitch box body 3 is fixedly installed at the lower end of the connecting shaft 2, a blade shaft 4 is fixedly installed at the outer end of the variable pitch box body 3, a blade 5 is fixedly installed at the outer end of the blade shaft 4, a waterproof shell 6 is fixedly installed at the outer end of the middle part of the blade shaft 4, a waterproof pad 7 is fixedly installed at the outer end of the waterproof shell 6, a bearing I8 is fixedly installed inside the waterproof shell 6, a supporting rod 9 is fixedly installed in the middle of the upper end inside the variable pitch box body 3, a bearing II 10 is fixedly installed at the lower end of the supporting rod 9, a gear ring 11 is fixedly arranged at the outer end of the middle part of the blade shaft 4, an electric push rod 12 is fixedly installed at the upper end inside the variable pitch box body 3, a push rod 13 is fixedly installed at the transmission end of the electric push rod 12, a toothed plate 14 is fixedly installed at the lower end of the push rod 13, and a wind speed sensor 15 is fixedly installed at the left end and right end of the lower end of the variable pitch box body 3, the lower end of the inside of the variable pitch box body 3 is fixedly provided with a control box 16, the blade shafts 4 are symmetrically distributed at the outer end of the variable pitch box body 3, the inner ends of the blade shafts 4 extend to the inside of the variable pitch box body 3, firstly, the device needs to connect the control box 16 inside with the outside by signals before use, when in use, the wind power drives the blades 5 to rotate, the blades 5 drive the variable pitch box body 3 to rotate, the variable pitch box body 3 drives the connecting shaft 2 to rotate, the connecting shaft 2 transmits the rotating force to the inside of the motor 1 to generate power, when the wind speed sensor 15 detects that the wind power has large change, the wind speed sensor 15 transmits the detection data to the control box 16, the control box 16 transmits the wireless signals to ground workers, the ground workers reversely output control signals to the control box 16 through ground equipment, when the control box 16 receives the control signals, the control box 16 controls the electric push rod 12 to start, the electric push rod 12 is started to drive the push rod 13 to lift, the push rod 13 drives the toothed plate 14 to lift, when the toothed plate 14 lifts, the toothed plate is meshed with the gear ring 11 to drive the blade shaft 4 to rotate, the blade shaft 4 drives the blades 5 to rotate, and the windward direction of the blades 5 is adjusted, so that the device effectively improves the control execution force for changing the blades, and simultaneously, each different blade 5 can be independently controlled, so that the control is more convenient;

the bearing I8 is positioned at the outer end of the blade shaft 4, the outer ring of the bearing I8 is fixedly connected with the variable-pitch box body 3, the blade shaft 4 can not generate friction with the variable-pitch box body 3 when rotating by installing the bearing I8, the abrasion of the variable-pitch box body 3 and the blade shaft 4 caused by long-term friction is avoided, the service life of the variable-pitch box body is effectively prolonged, the inner ring of the bearing II 10 is fixedly connected with the blade shaft 4, the gear ring 11 is positioned in the variable-pitch box body 3, different blade shafts 4 can be independently rotated and adjusted by installing the bearing II 10, and the supporting rod 9 is suspended, so that the blade shaft 4 is more stable in the rotating process, and the rotating stability of the blade shaft 4 is further improved;

electric putter 12 is in the inside upper end evenly distributed of change oar box 3, pinion rack 14 is connected with the meshing of ring gear 11, through installation electric putter 12, accessible ring gear 11 rotates blade shaft 4 with the meshing of pinion rack 14, the effectual convenience that changes the oar regulation that has improved, make simultaneously that to change the inside more simple and clear that sets up of oar device, be convenient for later maintenance and maintenance, control box 16 and wind velocity transducer 15 electric connection, control box 16 and electric putter 12 electric connection, carry out signal connection through installation control box 16 and ground equipment, make ground staff can be real-time control the operation of changing the oar, further improvement the convenience of staff's operation, simultaneously with wind velocity transducer 15 electric connection, can be timely report high altitude wind speed to ground, further improvement the change of different unit positions.

The working principle is as follows: firstly, the device needs to connect the control box 16 inside with the outside by signals before use, when in use, the wind power drives the blade 5 to rotate, the blade 5 drives the variable-pitch box body 3 to rotate, the variable-pitch box body 3 drives the connecting shaft 2 to rotate, the connecting shaft 2 transmits the rotating force to the inside of the motor 1 to generate power, when the wind speed sensor 15 detects that the wind power has large change, the wind speed sensor 15 transmits the detection data to the control box 16, the control box 16 transmits the wireless signals to ground workers, the ground workers reversely output control signals to the control box 16 through ground equipment, when the control box 16 receives the control signals, the control box 16 controls the electric push rod 12 to start, the electric push rod 12 starts to drive the push rod 13 to lift, the push rod 13 drives the toothed plate 14 to lift, when the toothed plate 14 lifts, the toothed plate drives the blade shaft 4 to rotate by meshing with the gear ring 11, the blade shaft 4 drives the blades 5 to rotate, the windward direction of the blades 5 is adjusted, the device effectively improves the control execution force for changing the blades, and simultaneously, each different blade 5 can be independently controlled, so that the control is more convenient.

Finally, it should be noted that the above-mentioned contents are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, and that the simple modifications or equivalent substitutions of the technical solutions of the present invention by those of ordinary skill in the art can be made without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A pitch device for a servo drive EPD45, comprising a motor (1), characterized by: the transmission end of the motor (1) is fixedly connected with a connecting shaft (2), the lower end of the connecting shaft (2) is fixedly provided with a variable-pitch box body (3), the outer end of the variable-pitch box body (3) is fixedly provided with a blade shaft (4), the outer end of the blade shaft (4) is fixedly provided with a blade (5), the outer end of the middle part of the blade shaft (4) is fixedly provided with a waterproof shell (6), the outer end of the waterproof shell (6) is fixedly provided with a waterproof pad (7), the inner part of the waterproof shell (6) is fixedly provided with a bearing I (8), the middle part of the upper end of the inner part of the variable-pitch box body (3) is fixedly provided with a supporting rod (9), the lower end of the supporting rod (9) is fixedly provided with a bearing II (10), the outer end of the middle part of the blade shaft (4) is fixedly provided with a gear ring (11), and the upper end of the inner part of the variable-pitch box body (3) is fixedly provided with an electric push rod (12), the driving end of the electric push rod (12) is fixedly provided with a push rod (13), the lower end of the push rod (13) is fixedly provided with a toothed plate (14), the left end and the right end of the lower end of the variable pitch box body (3) are fixedly provided with a wind speed sensor (15), and the lower end of the inside of the variable pitch box body (3) is fixedly provided with a control box (16).

2. A pitch apparatus for a servo driver EPD45, according to claim 1, wherein: the blade shafts (4) are symmetrically distributed at the outer end of the variable-pitch box body (3), and the inner ends of the blade shafts (4) extend into the variable-pitch box body (3).

3. A pitch apparatus for a servo driver EPD45, according to claim 1, wherein: the bearing I (8) is located at the outer end of the blade shaft (4), and the outer ring of the bearing I (8) is fixedly connected with the variable-pitch box body (3).

4. A pitch apparatus for a servo driver EPD45, according to claim 1, wherein: the inner ring of the second bearing (10) is fixedly connected with the blade shaft (4), and the gear ring (11) is located inside the variable pitch box body (3).

5. A pitch apparatus for a servo driver EPD45, according to claim 1, wherein: the electric push rods (12) are uniformly distributed at the upper end inside the variable pitch box body (3), and the toothed plate (14) is meshed and connected with the gear ring (11).

6. A pitch apparatus for a servo driver EPD45, according to claim 1, wherein: the control box (16) is electrically connected with the wind speed sensor (15), and the control box (16) is electrically connected with the electric push rod (12).