Brushless direct current motor

Abstract

The invention provides a brushless direct current motor, which relates to the technical field of brushless direct current motors and comprises a base, two groups of vertical bars are symmetrically and fixedly mounted at the upper end of the base, inner grooves are formed in the two groups of vertical bars, inner bars are arranged at the opposite ends of the two groups of vertical bars, and a fixing bar is fixedly mounted at the center of the upper end of the base. Screw rods are symmetrically and fixedly mounted at the upper end parts of the fixing strips, threaded rings are mounted on the two screw rods in a threaded manner, connecting strips are symmetrically and fixedly mounted between the two groups of vertical strips, the two connecting strips are fixedly connected with the two screw rods respectively, and a fixing rod is fixedly mounted between the two rear vertical strips; a driving mechanism is fixedly mounted on the side wall of the fixed rod; the driving mechanism comprises a hydraulic oil cylinder, the applicability and universality of the equipment are improved, the equipment adapts to the complex situation that the installation position of the brushless direct current motor and the rotating shaft are not located on the same plane or located on a multi-section type plane, the application range of the brushless direct current motor is widened, and the brushless direct current motor can play a role in more special scenes.

Description

Technical Field

[0001] The present invention belongs to the technical field of brushless DC motors, and more specifically, particularly relates to a brushless DC motor. Background Art

[0002] Brushless DC motors are also called brushless DC motors. They are mainly composed of electric motors and drivers. They are typical mechatronics products. Brushless DC motors have the characteristics of fast response, large starting torque, and the ability to provide rated torque from zero speed to rated speed.

[0003] The prior art components of a brushless DC motor typically include the following:

[0004] 1. Stator: usually composed of an iron core and windings, through which current is passed to generate a magnetic field;

[0005] 2. Rotor: It is mostly made of permanent magnet material and rotates under the action of the stator magnetic field;

[0006] 3. Position sensor: used to detect the position of the rotor and provide signals to the controller to achieve accurate commutation control;

[0007] 4. Controller: According to the signal of the position sensor, it controls the on / off and direction of the current in the stator winding to achieve continuous operation of the motor;

[0008] When in use, connect the motor control line to the corresponding controller. The controller will accurately control the motor's rotation direction, speed and torque according to the preset program and the received position sensor signal. During use, the controller parameters such as voltage, current, speed setting value, etc. can be adjusted to meet different work requirements.

[0009] However, the traditional brushless DC motor wire storage method easily causes the wires to become loosely entangled, affecting the regularity of the wires and the safety of use. In terms of motor installation height and motor output angle adjustment, the existing methods are often complicated to operate and difficult to accurately control the height. They cannot adapt well to the needs of different equipment, and the modification cost is high, time-consuming and labor-intensive. They cannot meet the multi-angle requirements in complex installation environments, limiting the application scenarios of the motor.

[0010] The existing structure and defects are studied and improved, and a brushless DC motor is provided. Summary of the invention

[0011] In order to solve the above technical problems, the present invention provides a brushless DC motor to solve the above problems.

[0012] A brushless DC motor comprises a base, wherein two groups of vertical bars are symmetrically fixedly installed at the upper end of the base, inner grooves are provided inside the two groups of vertical bars, inner bars are provided on opposite ends of the two groups of vertical bars, a fixing bar is fixedly installed at the center of the upper end of the base, screws are symmetrically fixedly installed at the upper end of the fixing bar, threaded rings are threadedly installed on the two screws, connecting bars are symmetrically fixedly installed between the two groups of vertical bars, the two connecting bars are fixedly connected to the two screws respectively, and a fixing rod is fixedly installed between the two vertical bars located at the rear;

[0013] A driving mechanism is fixedly mounted on the side wall of the fixing rod;

[0014] The driving mechanism comprises a hydraulic cylinder, which is fixedly mounted on the side wall of the fixed rod, and an electric telescopic rod is mounted on the output end of the fixed rod.

[0015] Preferably, a convex strip is fixedly mounted on the side wall of the electric telescopic rod, and first slide bars are slidably mounted inside the two inner grooves located at the front, and circular grooves are formed inside the two first slide bars.

[0016] Preferably, second slide bars are slidably installed inside the two inner grooves at the rear, limiting grooves are provided inside the two second slide bars, cross bars are symmetrically fixedly installed on the two groups of the first slide bars, and the two cross bars are slidably installed in the two groups of inner bars respectively.

[0017] Preferably, a motor is arranged above the base, and a rotating shaft is installed on the output end of the motor.

[0018] Preferably, a rotating column and a sliding column are symmetrically fixedly installed on the side wall of the motor, the two rotating columns are rotatably installed in the two circular grooves respectively, and the two sliding columns are slidably installed in the two limiting grooves respectively.

[0019] Preferably, a wedge block is fixedly mounted on the lower end of the motor, and the wedge block is in close contact with the convex strip.

[0020] Preferably, a terminal head is fixedly mounted on the side wall of the motor, and a side block is fixedly mounted on the side wall of the motor.

[0021] Preferably, an inner column is fixedly installed inside the side block, and fixed plates are fixedly installed at both ends of the inner column.

[0022] Preferably, springs are fixedly mounted on opposite ends of the two fixed disks, and wire take-up blocks are symmetrically arranged on both sides of the side blocks.

[0023] Preferably, L-shaped bars are fixedly installed in the inner walls of the two take-up blocks, and the two L-shaped bars are respectively slidably installed on the two inner columns and fixedly connected to the two springs.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] In the present invention, by providing a spring, a wire take-up block and an L-shaped strip, the movement of the two L-shaped strips will drive the two springs to stretch and generate elastic force. When the connected wires are wound, the two wire take-up blocks will move outward under the elastic force of the springs, thereby putting the connected wires in a tight state, making it less likely to become loose when wound, thereby improving the stability of wire storage and arrangement.

[0026] In the present invention, by providing an inner strip, a threaded ring, a first slide bar, a second slide bar, a limiting groove, a cross bar and a motor, the two threaded rings rotate to drive the two cross bars to move upward in the two groups of inner strips, and the two cross bars drive the two groups of first slide bars and the second slide bars to move upward accordingly, and the two groups of first slide bars and the limiting grooves drive the motor to move upward accordingly, so as to adjust the installation height of the motor, and accurately control the installation height, thereby ensuring the performance and working effect of the equipment at different heights, and the equipment can be flexibly adjusted according to actual conditions, without the need to replace the equipment or perform complicated modifications, thereby reducing costs and time;

[0027] In the present invention, a hydraulic cylinder, an electric telescopic rod, a convex strip, a limit groove, a motor, a rotating shaft, a rotating column, a sliding column and a wedge block are provided. Under the action of the hydraulic cylinder, the electric telescopic rod is driven to extend and retract. At this time, the electric telescopic rod pushes the convex strip backwards, and the convex strip pushes the wedge block. At this time, the wedge block is subjected to force and drives the motor to turn clockwise with the rotating column as the central axis. At this time, the two sliding columns slide upward inside the two limit grooves, and then the output angle of the rotating shaft is adjusted to meet the angle requirements under different working scenes and needs, thereby improving the applicability and versatility of the equipment, adapting to the complex situation that the installation position of the brushless DC motor and the rotating shaft are not in the same plane or are in a multi-segment plane, and broadening the application range of the brushless DC motor so that it can play a role in more special scenes.

[0028] In the present invention, by providing a motor and adjusting the installation height and output shaft angle of the motor, the motor can be in a suspended state during operation, and the airflow flowing on its surface can quickly take away the heat, achieving an efficient heat dissipation effect, reducing the temperature of the motor during operation, and extending the service life of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0030] Figure 2 It is a schematic diagram of the explosion structure of the motor connection of the present invention;

[0031] Figure 3 This is a schematic diagram of the explosion structure of the first slide bar connection of the present invention;

[0032] Figure 4 It is a schematic diagram of the threaded ring connection explosion structure of the present invention;

[0033] Figure 5 It is a schematic diagram of the wedge block connection structure of the present invention;

[0034] Figure 6 It is a schematic diagram of the explosion structure of the take-up block connection of the present invention.

[0035] In the figure, the correspondence between the structural names and the reference numerals is: 11, base; 12, vertical bar; 13, inner groove; 14, inner bar; 15, fixed bar; 16, screw; 17, threaded ring; 18, connecting bar; 21, hydraulic cylinder; 22, electric telescopic rod; 23, convex bar; 24, first slide bar; 25, circular groove; 26, second slide bar; 27, limit groove; 28, cross bar; 29, fixed rod; 31, motor; 32, rotating shaft; 33, rotating column; 34, sliding column; 35, wedge block; 36, terminal head; 37, side block; 38, inner column; 39, fixed disk; 41, spring; 42, take-up block; 43, L-shaped bar. DETAILED DESCRIPTION

[0036] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0037] See also Figure 1-Figure 6 The present invention provides a brushless DC motor, including a base 11, two groups of vertical bars 12 are symmetrically fixedly installed on the upper end of the base 11, inner grooves 13 are provided inside the two groups of vertical bars 12, inner bars 14 are provided on the opposite ends of the two groups of vertical bars 12, a fixing bar 15 is fixedly installed at the center of the upper end of the base 11, screw rods 16 are symmetrically fixedly installed on the upper end of the fixing bar 15, threaded rings 17 are threadedly installed on the two screw rods 16, connecting bars 18 are symmetrically fixedly installed between the two groups of vertical bars 12, and the two connecting bars 18 are respectively fixedly connected to the two screw rods 16, and a fixing rod 29 is fixedly installed between the two vertical bars 12 located at the rear;

[0038] A driving mechanism is fixedly mounted on the side wall of the fixed rod 29;

[0039] The driving mechanism includes a hydraulic cylinder 21, which is fixedly mounted on the side wall of a fixed rod 29, an electric telescopic rod 22 is mounted on the output end of the fixed rod 29, and a convex strip 23 is fixedly mounted on the side wall of the electric telescopic rod 22. The two inner grooves 13 at the front are both slidably mounted with first slide bars 24, and the two first slide bars 24 are both provided with circular grooves 25. The two inner grooves 13 at the rear are both slidably mounted with second slide bars 26, and the two second slide bars 26 are both provided with limiting grooves 27. Cross bars 28 are symmetrically fixedly mounted on the two groups of first slide bars 24, and the two cross bars 28 are respectively slidably mounted in the two groups of inner bars 14. A motor 31 is arranged above the base 11. When the installation height of the motor 31 needs to be adjusted, the two threaded rings 17 can be synchronously rotated on the two screw rods 16. When the two threaded rings 17 are The rotation will drive the two cross bars 28 to move upward in the two groups of inner bars 14. At this time, the two cross bars 28 will drive the two groups of first slide bars 24 and the second slide bars 26 to move upward accordingly. At this time, the two groups of first slide bars 24 and the limit grooves 27 will drive the motor 31 to move upward accordingly, thereby adjusting the installation height of the motor 31, and the installation height can be accurately controlled to ensure the performance and working effect of the equipment at different heights. The equipment can be flexibly adjusted according to actual conditions without replacing equipment or performing complex modifications, thereby reducing costs and time. By adjusting the installation height and output shaft angle of the motor 31, the motor 31 can be in a suspended state during operation, and the airflow flowing on its surface can quickly take away the heat, achieving an efficient heat dissipation effect, reducing the temperature of the motor when it is working, and extending the service life of the motor.

[0040] A rotating shaft 32 is installed on the output end of the motor 31, and a rotating column 33 and a sliding column 34 are symmetrically fixedly installed on the side wall of the motor 31. The two rotating columns 33 are respectively rotatably installed in the two circular grooves 25, and the two sliding columns 34 are respectively slidably installed in the two limiting grooves 27. A wedge block 35 is fixedly installed on the lower end of the motor 31, and the wedge block 35 is kept in contact with the convex strip 23. A terminal head 36 is fixedly installed on the side wall of the motor 31, and a side block 37 is fixedly installed on the side wall of the motor 31. An inner column 38 is fixedly installed inside the side block 37, and a fixing plate 39 is fixedly installed at both ends of the inner column 38. Springs 41 are fixedly installed on the opposite ends of the fixed disks 39, and wire take-up blocks 42 are symmetrically arranged on both sides of the side blocks 37. L-shaped strips 43 are fixedly installed in the inner walls of the two wire take-up blocks 42. The two L-shaped strips 43 are respectively slidably installed on the two inner columns 38 and fixedly connected to the two springs 41. When in use, the connecting wires can be first installed in the wiring head 36, and then the connecting wires can be wound around the two wire take-up blocks 42. When winding, the two wire take-up blocks 42 will be forced to move closer to each other, and at this time, the two wire take-up blocks 42 will drive the two L-shaped strips 43 to slide toward the middle in the inner column 38. , the movement of the two L-shaped bars 43 will drive the two springs 41 to stretch and generate elastic force. When the connected wires are wound, the two wire-receiving blocks 42 will move outward under the elastic force of the springs 41, thereby making the connected wires in a tight state, making it less likely to become loose when wound, thereby improving the stability of wire storage and arrangement; when it is necessary to adjust the output angle of the rotating shaft 32, the hydraulic cylinder 21 can be started at this time, and the electric telescopic rod 22 will be extended and retracted under the action of the hydraulic cylinder 21. At this time, the electric telescopic rod 22 will push the convex bar 23 backward, At this time, the convex strip 23 will push the wedge block 35. At this time, the wedge block 35 will be forced to drive the motor 31 to flip clockwise with the rotating column 33 as the central axis. At this time, the two sliding columns 34 will slide upward inside the two limit grooves 27, and then adjust the output angle of the rotating shaft 32 to meet the angle requirements under different working scenarios and needs, improve the applicability and versatility of the equipment, adapt to the complex situation that the installation position of the brushless DC motor and the rotating shaft are not in the same plane or are in a multi-section plane, broaden the application scope of the brushless DC motor, and enable it to play a role in more special scenarios.

[0041] Working principle:

[0042] In the first step, when using, the connecting wire can be installed in the wiring head 36 first, and then the connecting wire can be wound on the two wire-taking blocks 42. When winding, the two wire-taking blocks 42 will be forced to move closer to each other. At this time, the two wire-taking blocks 42 will drive the two L-shaped strips 43 to slide toward the middle in the inner column 38. The movement of the two L-shaped strips 43 will drive the two springs 41 to stretch and generate elastic force. After the connecting wire is wound, the two wire-taking blocks 42 will move outward under the elastic force of the springs 41, thereby putting the connecting wire in a tight state, making it less likely to become loose when winding, thereby improving the stability of wire storage and arrangement;

[0043] In the second step, when the installation height of the motor 31 needs to be adjusted, the two threaded rings 17 can be synchronously rotated on the two screw rods 16. The rotation of the two threaded rings 17 will drive the two cross bars 28 to move upward in the two groups of inner bars 14. At this time, the two cross bars 28 will drive the two groups of first slide bars 24 and second slide bars 26 to move upward accordingly. At this time, the two groups of first slide bars 24 and the limit grooves 27 will drive the motor 31 to move upward accordingly, thereby adjusting the installation height of the motor 31. The installation height can be accurately controlled to ensure the performance and working effect of the equipment at different heights. The equipment can be flexibly adjusted according to actual conditions without replacing the equipment or performing complicated modifications, thereby reducing costs and time.

[0044] In the third step, when the output angle of the rotating shaft 32 needs to be adjusted, the hydraulic cylinder 21 can be started. Under the action of the hydraulic cylinder 21, the electric telescopic rod 22 will be extended and retracted. At this time, the electric telescopic rod 22 will push the convex strip 23 backward. At this time, the convex strip 23 will push the wedge block 35. At this time, the wedge block 35 will be forced to drive the motor 31 to turn clockwise with the rotating column 33 as the central axis. At this time, the two sliding columns 34 will slide upward inside the two limiting grooves 27, and then the output angle of the rotating shaft 32 is adjusted to meet the angle requirements under different working scenes and needs, improve the applicability and versatility of the equipment, adapt to the complex situation that the installation position of the brushless DC motor and the rotating shaft are not in the same plane or are in a multi-stage plane, broaden the application range of the brushless DC motor, and enable it to play a role in more special scenes;

[0045] The fourth step is to adjust the installation height and output shaft angle of the motor 31 so that the motor 31 can be suspended during operation. The airflow flowing on its surface can quickly take away the heat, achieve efficient heat dissipation, reduce the working temperature of the motor, and extend the service life of the motor.

[0046] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A brushless DC motor, comprising a base (11), wherein two groups of vertical bars (12) are symmetrically fixedly mounted on the upper end of the base (11), characterized in that: The two groups of vertical bars (12) are provided with inner grooves (13) inside, and the two groups of vertical bars (12) are provided with inner bars (14) at opposite ends. A fixing bar (15) is fixedly installed at the center of the upper end of the base (11), and screw rods (16) are symmetrically fixedly installed at the upper ends of the fixing bars (15), and threaded rings (17) are threadedly installed on the two screw rods (16); Wherein, a connecting bar (18) is symmetrically fixedly installed between the two groups of vertical bars (12), the two connecting bars (18) are respectively fixedly connected to two screw rods (16), and a fixing rod (29) is fixedly installed between the two vertical bars (12) located at the rear; A driving mechanism is fixedly mounted on the side wall of the fixing rod (29); The driving mechanism comprises a hydraulic cylinder (21), wherein the hydraulic cylinder (21) is fixedly mounted on a side wall of a fixed rod (29), and an electric telescopic rod (22) is mounted on an output end of the fixed rod (29).

2. A brushless DC motor as claimed in claim 1, characterized in that: A convex strip (23) is fixedly mounted on the side wall of the electric telescopic rod (22), and first slide strips (24) are slidably mounted inside the two inner grooves (13) located at the front; Wherein, a circular groove (25) is provided inside each of the two first sliding bars (24).

3. A brushless DC motor as claimed in claim 2, characterized in that: The two inner grooves (13) at the rear are both slidably mounted with second slide bars (26), and the two second slide bars (26) are both provided with limiting grooves (27); Wherein, cross bars (28) are symmetrically fixedly installed on the two groups of the first sliding strips (24), and the two cross bars (28) are respectively slidably installed in the two groups of inner strips (14).

4. A brushless DC motor as claimed in claim 1, characterized in that: A motor (31) is arranged above the base (11); Wherein, a rotating shaft (32) is installed on the output end of the motor (31).

5. A brushless DC motor as claimed in claim 4, characterized in that: A rotating column (33) and a sliding column (34) are symmetrically fixedly mounted on the side wall of the motor (31); The two rotating columns (33) are rotatably mounted in the two circular grooves (25) respectively, and the two sliding columns (34) are slidably mounted in the two limiting grooves (27) respectively.

6. A brushless DC motor as claimed in claim 5, characterized in that: A wedge block (35) is fixedly mounted on the lower end of the motor (31); Wherein, the wedge-shaped block (35) is kept in close contact with the convex strip (23).

7. A brushless DC motor as claimed in claim 6, characterized in that: A terminal head (36) is fixedly mounted on the side wall of the motor (31); Wherein, a side block (37) is fixedly mounted on the side wall of the motor (31).

8. A brushless DC motor as claimed in claim 7, characterized in that: An inner column (38) is fixedly installed inside the side block (37); Wherein, fixed plates (39) are fixedly mounted on both ends of the inner column (38).

9. A brushless DC motor as claimed in claim 8, characterized in that: Springs (41) are fixedly mounted on opposite ends of the two fixed plates (39); Wherein, the side blocks (37) are symmetrically provided with wire take-up blocks (42).

10. A brushless DC motor as claimed in claim 9, characterized in that: An L-shaped strip (43) is fixedly installed in the inner wall of the two wire-receiving blocks (42); The two L-shaped strips (43) are respectively slidably mounted on the two inner columns (38) and are fixedly connected to the two springs (41).

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