Directional synchronous motor

Abstract

A directional synchronous motor comprises a base and a top cover arranged on the base, the top cover is provided with an opening, the base comprises a shell with a top opening and a wire arranged around the inner side of the shell, and the shell bottom of the base is provided with an opening. The utility model directional synchronous motor is provided with a directional member at the bottom end of the first driven gear, the directional member is engaged with the lower side of the first driven gear by a snap, and the farthest point of the left and right movement of the directional member is limited by the cooperation of the limiting convex plate on the cover plate and the limiting part, and the directional part is provided near the driving gear of the directional member, when the driving gear and the first driven gear drive the protrusion and the directional part to move in opposite directions, the motor runs normally, and when the protrusion and the directional part move towards each other, the protrusion and the directional part abut against each other and the motor cannot run; the motor can only move in one direction by the cooperation of the directional member and the limiting convex plate and the protrusion on the cover plate, which is not only simple in structure and convenient for installation, but also greatly reduces the cost.

Description

Technical Field

[0001] The utility model relates to a directional synchronous motor. Background Art

[0002] A motor is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. Motors are needed in different industrial and life scenarios. Motors can be divided into directional motors and non-directional motors. Generally, directional motors are used in scenarios that require high-precision control.

[0003] The existing directional motors are mainly composed of a stator, a rotor and an electromagnet. The stator is fixed on a base, on which an electromagnet is arranged. The electromagnet is connected to the rotor, which is connected to the output shaft. An electromagnetic force in a specific direction is generated through a control circuit to drive the rotation of the rotor. At the same time, the stator will limit the rotor to rotate in only one direction. However, the traditional installation method of fixing the stator on the base is not only complicated but also costly. Utility Model Content

[0004] The utility model provides a directional synchronous motor.

[0005] The technical solution adopted by the utility model to solve the above technical problems is:

[0006] A directional synchronous motor comprises a base and a top cover arranged on the base, the top cover is provided with an opening, the base comprises a shell with a top opening and a wire arranged around the inner side of the shell, the shell bottom of the base is provided with an opening, the wire is connected to an external power source through the opening at the bottom of the shell, a cover plate is provided around the wire, and an electromagnet is provided at the center of the base; a driven gear set is provided on one side of the cover plate, the driven gear set comprises a first driven gear, and a second driven gear is provided on the other side of the cover plate, a rotating shaft is fixed to the top end of the second driven gear, the rotating shaft extends from the opening of the top cover, and the top of the electromagnet A driving gear and two protrusions are arranged at the lower end of the driving gear, the first driven gear is meshed with the driving gear, and a directional member is arranged on the bottom surface of the first driven gear. The directional member includes a directional portion, one end of the directional portion is close to the protrusion, and the other end is provided with two concentric circles with top openings, the inner concentric circle is a buckle, and the buckle is buckled on the outer wall of the cylindrical protrusion on the bottom surface of the first driven gear, and limiting portions are arranged at both ends of the outer concentric circle opening, and a limiting convex plate cooperating with the limiting portion is arranged on the cover plate; the directional portion is located on one side of the meshing position of the first driven gear and the driving gear.

[0007] Preferably, the shell of the base is circular.

[0008] Preferably, a fixing rod is provided at the center of the base, and the electromagnet is fixed at the center of the base through the fixing rod.

[0009] Preferably, a plurality of fixing rods are arranged at intervals on one side of the cover plate, and the driven gear set is arranged on the fixing rods.

[0010] Preferably, the orientation portion is located on the left side of the meshing position between the first driven gear and the driving gear.

[0011] Preferably, the orientation portion is located on the right side of the meshing position between the first driven gear and the driving gear.

[0012] Compared with the prior art, the directional synchronous motor of the utility model provides a directional piece at the bottom end of the first driven gear, the directional piece is engaged under the first driven gear through a snap buckle, and the limiting convex plate on the cover plate cooperates with the limiting portion to limit the farthest point of the left and right movement of the directional piece. By providing the directional portion near the driving gear, when the driving gear and the first driven gear drive the protrusion and the directional portion to move in opposite directions, the motor runs normally, and when the protrusion and the directional portion move towards each other, the protrusion and the directional portion abut against each other and the motor cannot run; the directional piece cooperates with the limiting convex plate and the protrusion on the cover plate to limit the motor to move in only one direction, which not only has a simple structure and is convenient for installation, but also greatly reduces the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of the directional synchronous motor of the utility model.

[0014] Figure 2 This is the first exploded view of the directional synchronous motor of the utility model.

[0015] Figure 3 This is the second exploded view of the directional synchronous motor of the utility model.

[0016] Figure 4 This is the third exploded view of the directional synchronous motor of the utility model.

[0017] Figure 5 This is an enlarged view of point A of the third exploded view of the directional synchronous motor of the present invention.

[0018] Figure 6 It is a schematic diagram of the first driven gear and the directional member of the directional synchronous motor of the utility model. DETAILED DESCRIPTION

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0020] like Figures 1 to 6As shown, the directional synchronous motor includes a base 1 and a top cover 2 arranged on the base 1, the top cover 2 is provided with an opening 21, the base 1 includes a circular shell with a top opening and a wire arranged around the inner side of the shell, the bottom of the circular shell of the base 1 is provided with an opening, the wire is connected to an external power supply through the opening at the bottom of the circular shell, a cover plate 11 is arranged around the wire, a fixing rod (not shown in the figure) is arranged at the center of the base 1, an electromagnet 12 is arranged at the fixing rod, and a driving gear 121 is arranged at the upper end of the electromagnet 12 and two protrusions 122 are arranged at the lower end of the driving gear 121 and are arranged opposite to each other.

[0021] Several fixing rods are arranged at intervals on one side of the cover plate 11, and a driven gear set 13 is arranged on the fixing rod. The driven gear set 13 includes a first driven gear 131, which is meshed with the driving gear 121. The driving gear 121 drives the first driven gear 131 to rotate, and the first driven gear 131 drives the other driven gears to rotate. The second driven gear 132 is arranged on the other side of the cover plate 11 and is the last driven gear to be driven. A rotating shaft 4 is fixed to the top end of the second driven gear 132, and the rotating shaft 4 extends from the opening 21 of the top cover 2 and can be connected to an external driven shaft.

[0022] A directional member 3 is provided on the bottom surface of the first driven gear 131, and the directional member 3 includes a directional portion 31, one end of the directional portion 31 is close to the protrusion 122, and the other end is provided with two concentric circles with top openings, the inner concentric circle is a buckle 33, and the buckle 33 is buckled on the outer wall of the cylindrical protrusion on the bottom surface of the first driven gear 131, and the two ends of the outer concentric circle opening are provided with limiting portions 32, and the cover plate 11 is provided with a limiting convex plate 111 that cooperates with the limiting portion 32, and the distance between the two ends of the limiting convex plate 111 is smaller than the distance between the two limiting portions 32; the directional portion 31 can be located on the left side of the meshing position of the first driven gear 131 and the driving gear 121, and can also be located on the right side of the meshing position of the first driven gear 131 and the driving gear 121.

[0023] When in use, the external power supply is turned on, and the electromagnet 12 is affected by the magnetic field generated by the wire and does not rotate in a directional manner. When the directional portion 31 is located on the right side of the meshing point between the first driven gear 131 and the driving gear 121, when the electromagnet 12 drives the driving gear 121 to rotate counterclockwise, the first driven gear 131 is driven to rotate clockwise, and the directional member 3 is also driven to rotate clockwise, and the directional portion 31 is driven away from the protrusion 122. At this time, the limiting portion 32 at the right end is against the limiting convex plate 111, fixing the positioning member 31 at the rightmost end. At this time, the directional portion 31 cannot touch the protrusion 122, and the motor is normal. Operation; when the electromagnet 12 drives the driving gear 121 to rotate clockwise, the first driven gear 131 is driven to rotate counterclockwise, and the directional member 3 is also driven to rotate counterclockwise. At this time, since the protrusion 122 and the directional portion 31 are opposite to each other and will resist each other, the electromagnet 12 cannot rotate in the clockwise direction; therefore, when the directional portion 31 is located on the right side of the meshing point between the first driven gear 131 and the driving gear 121, the electromagnet 12 can only rotate counterclockwise; when the directional portion 31 is located on the left side of the meshing point between the first driven gear 131 and the driving gear 121, the electromagnet 12 can only rotate clockwise.

[0024] The utility model directional synchronous motor is characterized in that a directional member 3 is arranged at the bottom end of the first driven gear 131, the directional member 3 is engaged with the bottom of the first driven gear 131 through a buckle 33, and the farthest point of the left and right movement of the directional member 3 is limited by the cooperation between the limiting convex plate 111 on the cover plate 11 and the limiting portion 32, and the directional portion 31 is arranged near the driving gear 121 on the directional member 3, when the driving gear 121 and the first driven gear 131 drive the protrusion 122 and the directional portion 31 to move in opposite directions, the motor operates normally, and when the protrusion 122 and the directional portion 31 move toward each other, the protrusion 122 and the directional portion 31 abut against each other and the motor cannot operate; the directional member 3 cooperates with the limiting convex plate 111 and the protrusion 122 on the cover plate 11 to limit the motor to move in only one direction, which not only has a simple structure and is convenient for installation, but also greatly reduces the cost.

[0025] Finally, it should be noted that the above embodiments only illustrate the technical solutions of the present invention, rather than limiting it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A directional synchronous motor, comprising a base (1) and a top cover (2) arranged on the base (1), the top cover (2) being provided with an opening (21), the base (1) comprising a shell with a top opening and a wire arranged around the inner side of the shell, the shell bottom of the base (1) being provided with an opening, the wire being connected to an external power source through the opening at the bottom of the shell, a cover plate (11) being provided around the wire, and an electromagnet (12) being provided at the center of the base (1); a driven gear set (13) being provided on one side of the cover plate (11), the driven gear set (13) comprising a first driven gear (131), a second driven gear (132) being provided on the other side of the cover plate (11), a rotating shaft (4) being fixed to the top end of the second driven gear (132), the rotating shaft (4) extending from the opening (21) of the top cover (2), characterized in that: The upper end of the electromagnet (12) is provided with a driving gear (121) and two protrusions (122) arranged opposite to each other at the lower end of the driving gear (121); the first driven gear (131) is meshed with the driving gear (121); the bottom surface of the first driven gear (131) is provided with a directional member (3); the directional member (3) comprises a directional portion (31); one end of the directional portion (31) is close to the protrusion (122); the other end is provided with two concentric circles with top openings; the inner concentric circle is a buckle (33); the buckle (33) is buckled on the outer wall of the cylindrical protrusion on the bottom surface of the first driven gear (131); the two ends of the outer concentric circle opening are provided with limiting portions (32); the cover plate (11) is provided with a limiting convex plate (111) matched with the limiting portion (32); the directional portion (31) is located on one side of the meshing position of the first driven gear (131) and the driving gear (121).

2. The directional synchronous motor according to claim 1, characterized in that: The shell of the base (1) is circular.

3. The directional synchronous motor according to claim 1, characterized in that: A fixing rod is arranged at the center of the base (1), and the electromagnet (12) is fixed at the center of the base (1) through the fixing rod.

4. The directional synchronous motor according to claim 1, characterized in that: A plurality of fixing rods are arranged at intervals on one side of the cover plate (11), and a driven gear set (13) is arranged on the fixing rods.

5. The directional synchronous motor according to any one of claims 1 to 4, characterized in that: The orientation portion (31) is located on the left side of the meshing position between the first driven gear (131) and the driving gear (121).

6. The directional synchronous motor according to any one of claims 1 to 4, characterized in that: The orientation portion (31) is located on the right side of the meshing position between the first driven gear (131) and the driving gear (121).

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