CN218670837U

CN218670837U - Driving module with variable output torque

Info

Publication number: CN218670837U
Application number: CN202222829283.3U
Authority: CN
Inventors: 黄明浩
Original assignee: Mingzhi Electrical Appliances Taicang Co ltd
Current assignee: Mingzhi Electrical Appliances Taicang Co ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-03-21
Anticipated expiration: 2032-10-26
Also published as: WO2024087529A1

Abstract

The utility model relates to a changeable drive module of output torque, motor, gear train, circuit automatic selection logic control circuit, cam machinery sequential control module and output axial force transmission mechanism in including the shell and arranging the shell in, circuit automatic selection logic control circuit includes external switch, first internal switch, second internal switch, first winding and second winding, external switch's first switch-on contact, first internal switch, first winding and second winding are established ties in proper order, external switch's second contact, second internal switch and second winding are established ties in proper order. Compared with the prior art, the utility model has the advantages of increase whole mechanism life-span.

Description

Driving module with variable output torque

Technical Field

The utility model relates to a drive module especially relates to a changeable drive module of output torque.

Background

Chinese patent publication No. CN101680564a discloses an electromechanical actuator device, especially for fluid valve actuation, in which the same winding on a motor is used in the ascending and descending processes of a mechanism output shaft, the resistance and current of the motor are the same, and the output force of the motor is the same, but when an actual customer uses the electromechanical actuator device, the output force of the motor required by the mechanism output shaft in the descending process is much smaller than the output force of the motor required in the ascending process, and when the motor is not required to output such a large torque, the motor outputting a large torque at all can reduce the service life of the whole mechanism.

Therefore, the variable output torque of the motor is realized, so that the service life of the driving module is prolonged, and the technical problem to be solved is solved.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to provide a driving module with variable output torque for overcoming the above-mentioned defects in the prior art.

The purpose of the utility model can be realized through the following technical scheme:

according to an aspect of the utility model provides a changeable drive module of output torque, including the shell and arrange motor, gear train, circuit automatic selection logic control circuit, cam machinery sequential control module and output axial force transmission mechanism in the shell in, circuit automatic selection logic control circuit includes external switch, first internal switch, second internal switch, first winding and second winding, external switch's first switch-on contact, first internal switch, first winding and second winding establish ties in proper order, external switch's second contact, second internal switch and second winding establish ties in proper order.

Preferably, the first internal switch comprises a first switch contact and a first switch swing arm, the first switch contact is connected with a first connection contact of the external switch through a first conduction piece, and the first connection contact, the first conduction piece, the first switch contact, the first switch swing arm, the first winding and the second winding of the external switch form an electric path to provide power for the rotation of the motor.

Preferably, the second internal switch comprises a second switch contact and a second switch swing arm, the second switch contact is connected with a second switch-on contact of the external switch through a second conduction piece, and the second switch-on contact, the second conduction piece, the second switch contact, the second switch swing arm and the second winding of the external switch form an electric path to provide power for the rotation of the motor.

Preferably, the cam mechanical timing control module comprises a first operation swing arm, a second operation swing arm and a lower cam, wherein the first operation swing arm, the second operation swing arm and the lower cam are used for controlling the opening and closing of the first internal switch and the second internal switch.

Preferably, the lower cam is provided with a first groove corresponding to the first operating swing arm, and when the first operating swing arm is embedded into the first groove, the first internal switch is turned off.

Preferably, the lower cam is provided with a second groove corresponding to the second operation swing arm, and when the second operation swing arm is embedded into the second groove, the second internal switch is turned off.

Compared with the prior art, the utility model discloses a mechanical structure such as cam is rotatory, and automatic control selects to be in the output shaft still two windings at the ascending in-process and the inside winding of decline in-process intercommunication motor to change the electrical resistance, finally reach the ascending process of output shaft and descend the different result of output torque, if keep ascending process output torque unchangeable, reduce and descend process output torque and just can reach the purpose that increases whole mechanism life-span.

Drawings

Fig. 1 is a schematic diagram of the explosion structure of the present invention;

FIG. 2 is the structure schematic diagram after the assembly of the utility model

Fig. 3 (a) to fig. 3 (d) are circuit diagrams of various states of the circuit automatic selection logic control circuit of the present invention;

fig. 4 is a schematic diagram of a part of the structure of the present invention.

Wherein 4a is a lower cover, 4b is a middle plate, 4c is an upper cover, 1 is a left insert, 2 is a middle insert, and 3 is a right insert; 1a is a left conductive spring, 3a is a right conductive spring, and 2b is a conductive insert;

5 is a first gear, 6 is a second gear, 7 is a third gear, 20 is a first conduction piece, 21 is a third conduction piece, and 22 is a second conduction piece;

1b is a first switch contact, 3b is a second switch contact, 1c is a first switch swing arm, and 3c is a second switch swing arm;

1d is a first operation swing arm, 3d is a second operation swing arm, 9 is a lower cam, 9a is a second groove, 9b is a first groove, and 10a is a rotor;

12 is an upper cam, 12b is a compression spring, and 12a is an output shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in fig. 1 and 2, a variable output torque driving module comprises a housing, and a motor 10, a gear set, a circuit automatic selection logic control circuit, a cam mechanical timing control module and an output axial force transmission mechanism which are arranged in the housing, wherein the housing comprises a lower cover 4a, a middle plate 4b and an upper cover 4c, the gear set comprises a rotor 10a, a first gear 5, a second gear 6 and a third gear 7,

the automatic selection logic control circuit of circuit includes external switch SB1, first internal switch SB2, second internal switch SB3, first winding and second winding, external switch SB 1's first switch-on contact, first internal switch SB2, first winding and second winding are established ties in proper order, external switch SB 1's second contact, second internal switch SB3 and second winding are established ties in proper order. The motor is fixed in the shell, when the motor 10 is electrified to rotate to drive the rotor 10a to rotate, the straight gear on the rotor 10a transmits the rotating force to the first gear 5, the second gear 6, the third gear 7 and the straight gear on the lower cam 9, and the rotating force is converted into axial thrust through the coupling of the cams and is transmitted to the compression spring 12b and the output shaft 12a.

First internal switch SB2 include first switch contact 1b and first switch swing arm 1c, first switch contact 1b is connected with external switch SB 1's first switch-on contact through first switch-on piece 20, external switch SB 1's first switch-on contact, first switch-on piece 20, first switch contact 1b, first switch swing arm 1c, first winding and second winding form the electric path and provide power for motor 10 rotates. The first switch contact 1b is a left conductive copper sheet, and the first switch swing arm 1c is a left beryllium copper sheet.

The second internal switch SB3 includes a second switch contact 3b and a second switch swing arm 3c, the second switch contact 3b is connected with the second switch-on contact of the external switch SB1 through the second switch-on piece 22, the second switch-on contact of the external switch SB1, the second switch-on piece 22, the second switch contact 3b, the second switch swing arm 3c and the second winding form an electric path for the rotation of the motor 10 to provide power. The second switch contact 3b is a right conductive copper sheet, and the second switch swing arm 3c is a right beryllium copper sheet.

The cam mechanical time sequence control module comprises a first operation swing arm 1d, a second operation swing arm 3d and a lower cam 9 which are used for controlling the opening and closing of a first internal switch SB2 and a second internal switch SB 3. The lower cam 9 on be equipped with the first recess 9b that corresponds with first operation swing arm 1d, in embedding first recess 9b in first operation swing arm 1d, first internal switch SB2 disconnection. Lower cam 9 on be equipped with the second recess 9a that corresponds with second operation swing arm 3d, in embedding second recess 9a in second operation swing arm 3d, second internal switch SB3 disconnection, wherein first operation swing arm 1d is left swing arm, second operation swing arm 3d is right swing arm.

Wherein the conducting piece adopts a pin structure.

The working principle of the utility model is as follows:

1. when the whole mechanism is operated, as shown in the following figure 3 (a), if the external switch SB1 is communicated with 20, the current passes through B, SB1, 20,1b,1c,1a,1,2, 21, A to form an electric path for the motor to rotate to provide output force, and 1b,1c form SB2, when the first winding and the second winding of the motor work simultaneously. During operation, when the first operating swing arm 1d is sunk into the slot 9b, as shown in fig. 2-2, the sb2 circuit is open and the mechanism temporarily stops operating. While the external control switch SB1 switches on the other side circuit. When the current is electrified again through B, SB1, 22,3b,3c,3a,3,2, 21, A forms an electric path, the motor rotates to provide output force, and the 3b,3c forms SB3, only the second winding of the motor works.

2. As shown in fig. 2-3, when the mechanism continues to operate and the first operating swing arm 1d rebounds, SB2 and SB3 are simultaneously turned on, but current is still passed through B, SB1, 22,3B,3c,3a,3,2, 21, a to form an electrical path for the motor to rotate to provide output power, and the motor operates only on the second winding.

3. When the mechanism continues the second swing arm 3d sinking into 9a, as in fig. 2-4, the sb3 circuit is open and the mechanism temporarily stops operating. While the external control switch SB1 switches on the other side circuit. When current is electrified again through B, SB1, 20,1b,1c,1a,1,2, 21, A to form an electric path, the motor rotates to provide output force, and the first winding and the second winding of the motor work simultaneously.

4. As shown in FIG. 2-1, when the mechanism continues to operate and the second operation swing arm 3d rebounds, SB2 and SB3 are simultaneously connected, but current is still supplied through B, SB1, 20,1b,1c,1a,1,2, 21, A to form an electric path for the motor to rotate to provide output force, and the first winding and the second winding of the motor are simultaneously operated.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a changeable drive module of output torque, includes the shell and arranges motor (10), gear train, the automatic selection logic control circuit of circuit, cam machinery sequential control module and output axial force transfer mechanism in the shell in, its characterized in that, the automatic selection logic control circuit of circuit includes external switch (SB 1), first internal switch (SB 2), second internal switch (SB 3), first winding and second winding, the first switch-on contact of external switch (SB 1), first internal switch (SB 2), first winding and second winding establish ties in proper order, the second contact of external switch (SB 1), second internal switch (SB 3) and second winding establish ties in proper order.

2. The variable drive module of an output torque according to claim 1, characterized in that the first internal switch (SB 2) comprises a first switch contact (1 b) and a first switch swing arm (1 c), the first switch contact (1 b) is connected with a first connection contact of the external switch (SB 1) through a first conduction member (20), and the first connection contact of the external switch (SB 1), the first conduction member (20), the first switch contact (1 b), the first switch swing arm (1 c), the first winding and the second winding form an electric path to provide power for the rotation of the motor (10).

3. The variable drive module of an output torque according to claim 1, characterized in that the second internal switch (SB 3) includes a second switch contact (3 b) and a second switch swing arm (3 c), the second switch contact (3 b) is connected to the second contact of the external switch (SB 1) through a second conduction member (22), and the second contact of the external switch (SB 1), the second conduction member (22), the second switch contact (3 b), the second switch swing arm (3 c) and the second winding form an electric path to provide power for the rotation of the motor (10).

4. An output torque variable drive module according to claim 1, wherein the cam mechanical timing control module comprises a first operating swing arm (1 d), a second operating swing arm (3 d) and a lower cam (9) for controlling the opening and closing of the first internal switch (SB 2) and the second internal switch (SB 3).

5. A variable output torque drive module according to claim 4, wherein the lower cam (9) is provided with a first recess (9 b) corresponding to the first swing arm (1 d), and when the first swing arm (1 d) is inserted into the first recess (9 b), the first internal switch (SB 2) is turned off.

6. A variable output torque drive module according to claim 4, wherein the lower cam (9) is provided with a second recess (9 a) corresponding to the second swing arm (3 d), and when the second swing arm (3 d) is inserted into the second recess (9 a), the second internal switch (SB 3) is turned off.