CN215772819U

CN215772819U - Motor power system

Info

Publication number: CN215772819U
Application number: CN202122364960.4U
Authority: CN
Inventors: 陈芷
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-02-08
Anticipated expiration: 2031-09-28

Abstract

The utility model relates to a motor power system, which comprises a motor and a coupling which is in transmission connection with a power output end of the motor, wherein the coupling comprises a first connecting part connected with the motor side and a second connecting part used for being connected with a load side, the first connecting part comprises a rotating disc, a plurality of centrifugal blocks are uniformly distributed on the rotating disc along the circumferential direction, the outer ends of the centrifugal blocks are provided with centrifugal block transmission parts, each centrifugal block is in guide movement fit with the rotating disc along the radial direction of the rotating disc, a centrifugal block return spring is arranged between the centrifugal block and the rotating disc, the second connecting part comprises a transmission sleeve sleeved on the periphery of the rotating disc, and the centrifugal block is provided with a transmission working position which enables the centrifugal block transmission part to be in contact transmission fit with the inner periphery of the transmission sleeve and a non-transmission working position which enables the centrifugal block transmission part to be separated from the inner periphery of the transmission sleeve in the radial movement process of the rotating disc. The utility model provides a motor power system capable of reducing the starting load of a motor.

Description

Motor power system

Technical Field

The utility model relates to the field of electromechanical power, in particular to a motor power system.

Background

The motor power system is a relatively common power system, that is, torque power is output outwards through a motor, and a power output end of the motor is connected with a load through a coupling in a transmission manner. The torque of the motor is transmitted to the load through the coupler, and the instantaneous starting load of the motor is too large, so that the starting current of the motor is large, certain impact on a power grid can be caused, and the motor is also an important reason for causing power consumption of the motor.

Disclosure of Invention

The utility model aims to provide a motor power system capable of reducing the starting load of a motor.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

the utility model provides a motor power system, connect in the shaft coupling of the power take off of motor including motor and transmission, the shaft coupling includes the first coupling part that links to each other with the motor side and is used for the second coupling part that links to each other with the load side, first coupling part includes the rolling disc, it has a plurality of centrifugation pieces to follow circumference evenly distributed on the rolling disc, the outer end of centrifugation piece is provided with centrifugation piece transmission portion, each centrifugation piece is along the radial and rolling disc guide movement cooperation of rolling disc, be provided with centrifugation piece reset spring between centrifugation piece and the rolling disc, the peripheral transmission cover of rolling disc is located including the cover to the second coupling part, centrifugation piece has the non-transmission operating position that makes centrifugation piece transmission portion and transmission cover internal periphery contact transmission cooperation and make centrifugation piece transmission portion and transmission cover internal periphery break away from along the radial movement process of rolling disc.

The number of the centrifugal blocks is 3-8.

The centrifugal block transmission part is an arc-shaped friction matching layer, and the inner periphery of the transmission sleeve is provided with a friction disc for realizing friction transmission matching with the centrifugal block transmission part.

The centrifugal block transmission part is of a transmission gear structure, and the inner periphery of the transmission sleeve is provided with a gear ring used for realizing meshing transmission with the centrifugal block transmission part.

The transmission tooth structure comprises a plurality of triangular meshing teeth with tooth tops outwards arranged along the circumferential direction in sequence.

The transmission gear structure is fixed on the fluted disc, and the fluted disc is along the outer end of circumference direction removal assembly in the centrifugation piece, and the outer end of centrifugation piece is provided with the fluted disc limit structure that is used for restricting the fluted disc along circumference displacement range.

The utility model has the beneficial effects that: when the motor power system is used, when the motor is just started, the rotating speed of the motor does not reach the torque and the rotating speed capable of driving the load, the centrifugal block is in a non-transmission working position, the transmission part of the centrifugal block is not in contact with the inner periphery of the transmission sleeve, so that the impact on a power grid is small, the starting load of the motor is small, the centrifugal block moves outwards under the action of centrifugal force along with the increase of the rotating speed of the motor, the centrifugal block moves to the transmission working position, and the transmission part of the centrifugal block is in contact with the inner periphery of the transmission sleeve for transmission, so that the normal transmission process is realized.

Drawings

FIG. 1 is a schematic structural diagram of a centrifugal block in a non-transmission working position according to the present invention;

FIG. 2 is a schematic structural diagram of a centrifugal block in a transmission working position according to the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 1;

in the figure: 1. a transmission sleeve; 2. a ring gear; 3. a centrifugal block transmission part; 4. a guide groove; 5. a centrifugal block; 6. rotating the disc; 7. a drive shaft; 8. a centrifugal block return spring; 9. triangular engaging teeth; 10. a limiting guide rod; 11. and C, a fluted disc.

Detailed Description

An embodiment of a motor power system according to the present invention is shown in fig. 1 to 3: including motor and transmission connection in the shaft coupling of the power take off of motor (not shown in the figure), the shaft coupling includes the first connecting portion that links to each other with the motor side and is used for the second connecting portion that links to each other with the load side, and first connecting portion includes rolling disc 6 and the axis of rotation 7 of fixed setting of the coaxial line with rolling disc 6, axis of rotation 7 and the power take off fixed connection of motor.

Six guide grooves 4 are formed in the rotating disc in the circumferential direction, the guide direction of each guide groove 4 extends along the radial direction of the rotating disc, a centrifugal block 5 is assembled in each guide groove in a guiding and moving mode, a notch blocking edge is arranged at the notch of each guide groove, and a centrifugal block reset spring 8 used for forcing the centrifugal block to move towards the axis direction of the rotating disc is arranged between each notch blocking edge and the centrifugal block.

The outer end of the centrifugal block penetrates out of the notch of the guide groove, and the outer end of the centrifugal block is provided with a centrifugal block transmission part 3. The second connecting part comprises a transmission sleeve 1 sleeved on the periphery of the rotating disc, when the connecting part is used, the transmission sleeve is fixedly connected with a load, and an annular space is formed between the transmission sleeve and the rotating disc.

The centrifugal block has a transmission working position for making the transmission part of the centrifugal block contact with the inner periphery of the transmission sleeve for transmission and matching and a non-transmission working position for making the transmission part of the centrifugal block separate from the inner periphery of the transmission sleeve in the radial moving process of the rotating disc. In this embodiment, the centrifugal block transmission part is a transmission gear structure, the transmission gear structure includes a plurality of triangular engaging teeth 9 with outward tooth tips, which are sequentially arranged along the circumferential direction, and the inner periphery of the transmission sleeve is provided with a gear ring 2 for realizing engaging transmission with the centrifugal block transmission part.

The transmission gear structure is fixed on the fluted disc 11, the fluted disc 11 is assembled at the outer end of the centrifugal block along the circumferential direction guide movement, and the outer end of the centrifugal block is provided with a fluted disc limiting structure used for limiting the fluted disc along the circumferential movement range. The fluted disc limiting structure comprises limiting guide rods 10 positioned on two circumferential sides of the fluted disc, the limiting guide rods are fixed on the centrifugal block, guide rod matching grooves matched with the limiting guide rods in a guiding and moving mode are formed in two sides of the fluted disc, and the limiting guide rods and the guide rod matching grooves are matched in a guiding mode in the circumferential direction of the rotating disc, so that the fluted disc can have a certain circumferential moving amplitude relative to the centrifugal block. The part of the limiting guide rod connected with the centrifugal block can be used for being matched with the fluted disc stop so as to limit the circumferential moving range of the fluted disc relative to the centrifugal block.

When the motor is started, the rotating speed of the motor is low, the centrifugal block is acted by a centrifugal block return spring and is positioned at a non-transmission working position where the transmission part of the centrifugal block is separated from the inner periphery of the transmission sleeve as shown in figure 1, so that the instantaneous starting load of the motor is not too large, the impact on a power grid is low, the centrifugal block moves outwards under the centrifugal action along with the increase of the rotating speed of the motor, the transmission tooth structure is meshed with the gear ring on the inner periphery of the transmission sleeve as shown in figure 2, the triangular meshing teeth can realize the approximate stepless meshing of the transmission tooth structure and the gear ring, and if the transmission tooth structure and the teeth on the gear ring are not in positive correspondence, the fluted disc moves circumferentially relative to the centrifugal block under the guiding action of the triangular meshing teeth, the circumferential position of the fluted disc can be adaptively adjusted, and the smooth meshing of the triangular meshing teeth and the gear ring is ensured, the transmission relation between the rotating disc and the transmission sleeve is ensured. The coupler can effectively reduce the impact on a power grid when the motor is instantaneously started and reduce the energy consumption required by the motor during instantaneous start, thereby achieving the purpose of saving the energy consumption.

In other embodiments of the utility model: the centrifugal block transmission part can also be an arc friction matching layer, and the inner periphery of the transmission sleeve is provided with a friction disc for realizing friction transmission matching with the centrifugal block transmission part.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a motor power system, includes that motor and transmission connect in the shaft coupling of the power take off end of motor, its characterized in that: the shaft coupling includes the first coupling part that links to each other with the motor side and is used for the second coupling part that links to each other with the load side, first coupling part includes the rolling disc, it has a plurality of centrifugal pieces to evenly distribute along circumference on the rolling disc, the outer end of centrifugal piece is provided with centrifugal piece transmission portion, each centrifugal piece is along the radial and rolling disc guide movement cooperation of rolling disc, be provided with centrifugal piece reset spring between centrifugal piece and the rolling disc, second coupling part is including the cover and locating the peripheral transmission cover of rolling disc, centrifugal piece has the non-transmission work position that makes centrifugal piece transmission portion and transmission cover internal periphery contact transmission cooperation and make centrifugal piece transmission portion and transmission cover internal periphery break away from along the radial movement in-process of rolling disc.

2. The electro-mechanical power system of claim 1, wherein: the number of the centrifugal blocks is 3-8.

3. The electro-mechanical power system of claim 1, wherein: the centrifugal block transmission part is an arc-shaped friction matching layer, and the inner periphery of the transmission sleeve is provided with a friction disc for realizing friction transmission matching with the centrifugal block transmission part.

4. The electro-mechanical power system of claim 1, wherein: the centrifugal block transmission part is of a transmission gear structure, and the inner periphery of the transmission sleeve is provided with a gear ring used for realizing meshing transmission with the centrifugal block transmission part.

5. The motor power system as set forth in claim 4, wherein: the transmission tooth structure comprises a plurality of triangular meshing teeth with tooth tops outwards arranged along the circumferential direction in sequence.

6. The motor power system as set forth in claim 5, wherein: the transmission gear structure is fixed on the fluted disc, and the fluted disc is along the outer end of circumference direction removal assembly in the centrifugation piece, and the outer end of centrifugation piece is provided with the fluted disc limit structure that is used for restricting the fluted disc along circumference displacement range.