CN217502358U

CN217502358U - Micromotor location separation and reunion speed reduction structure

Info

Publication number: CN217502358U
Application number: CN202220169357.2U
Authority: CN
Inventors: 羿庆海; 靳梦楠
Original assignee: Xuchang Maikesi Power Equipment Co ltd
Current assignee: Xuchang Maikesi Power Equipment Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-09-27
Anticipated expiration: 2032-01-21

Abstract

The utility model discloses a micromotor positioning clutch deceleration structure, which comprises a motor, a reduction gearbox, an output shaft, a driving gear, a clutch pawl and a clutch pin; the output end of the motor is connected to the multi-stage gear pairs in the reduction gearbox, the output shaft is rotatably connected to the reduction gearbox and extends out of the reduction gearbox, and the driving gear is sleeved on the outer circumferential wall of the output shaft in a hollow mode and is connected between the multi-stage gear pairs in a meshed mode; the inner circle surface of the driving gear is provided with a ratchet gap for movably connecting the clutch pawl; the excircle face of output shaft is seted up the location slot with separation and reunion pawl looks adaptation, and separation and reunion pawl swing joint is in the location slot. The utility model can be applied in the motor reduction box special for the high-voltage switch operating mechanism, so that the motor has the advantages of storing energy in place, automatically separating and opening the transmission system, and avoiding the problem of motor stalling or jamming; the output of the structure has a one-way function and a clutch function, and has great practical significance for saving space and materials.

Description

Micromotor location separation and reunion speed reduction structure

Technical Field

The utility model relates to a clutch device field especially relates to a micromotor location separation and reunion speed reduction structure.

Background

In a power system switchgear, a spring actuator is a commonly used driving element, and the motion energy of the spring actuator is derived from the stored potential energy of the deformed spring. The spring energy on the electric spring mechanism is stored after stretching (compressing) deformation is realized through an additional reduction box by means of a special permanent magnet motor. After the spring stores energy, the transmission system does not move any more, and in order to prevent elements of the transmission system from being stuck or even damaged due to the uninterrupted power supply of the motor or the inertia of the motor, a clutch device is required to be arranged to separate the transmission.

However, in the conventional speed reducer, the speed reducer is assembled outside a motor element through a series of parts, and thus, the cost and the space are occupied; the output of the reduction gearbox of the motor only has a one-way function and does not have a clutch function, so that the motor is easy to cause the problems of locked rotor or jamming.

SUMMERY OF THE UTILITY MODEL

On the basis of the above, the present reduction gear needs to be assembled outside the motor element through a series of parts, which occupies cost and space; the output of the reduction gearbox of the motor only has a one-way function and does not have a clutch function, so that the motor is easy to cause the problems of locked rotor or jamming, and the micromotor positioning clutch speed reducing structure is provided.

A micromotor positioning clutch deceleration structure comprises a motor, a reduction box, an output shaft, a driving gear, a clutch pawl and a clutch pin;

the output end of the motor is connected to the multi-stage gear pairs in the reduction gearbox, the output shaft is rotatably connected to the reduction gearbox and extends out of the reduction gearbox, and the driving gear is sleeved on the outer circumferential wall of the output shaft in a hollow mode and is connected between the multi-stage gear pairs in a meshed mode; the inner circular surface of the driving gear is provided with a ratchet notch for the movable connection of the clutch pawl; a positioning groove matched with the clutch pawl is formed in the outer circular surface of the output shaft, and the clutch pawl is movably connected in the positioning groove; the clutch pin is fixedly arranged on the inner wall of the reduction gearbox and used for triggering the clutch pawl.

The micromotor positioning clutch speed reducing structure is applied to a motor speed reducing box special for a high-voltage switch operating mechanism, so that the motor has the advantages of storing energy in place and automatically separating and combining a transmission system, and the problem of motor stalling or jamming is avoided; the output of the structure has a one-way function and a clutch function.

In one embodiment, the clutch pawl is in limited rotational connection in the positioning groove.

In one embodiment, when the rotor of the motor is driven, the motor provides the driving gear meshing power through the multi-stage gear pair.

In one embodiment, when the clutch pawl is located in the ratchet notch and the driving gear rotates, the clutch pawl is pressed by the ratchet notch, and the clutch pawl drives the output shaft to rotate through the positioning groove.

In one embodiment, when the tip position of the clutch pawl contacts the clutch pin, the clutch pin is depressed and disengages from the ratchet notch, and the drive gear is rotationally disengaged from the output shaft.

In one embodiment, when the clutch pawl is out of contact with the clutch pin and the head of the clutch pawl is lifted, the clutch pawl is pressed by the ratchet notch again through the rotation action of the driving gear, and the clutch pawl drives the output shaft to rotate through the positioning groove.

In one embodiment, the clutch pin is of a cylindrical configuration.

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

the utility model discloses, by under the synergism of separation and reunion pawl, location slot and ratchet breach and separation and reunion round pin, through the relation of connection of nimble change separation and reunion pawl and ratchet breach, make the motor have the energy storage and target in place the automation and with transmission system separation and reunion, avoided motor stalling or the dead problem of card, realized that motor reducing gear box output has one-way and separation and reunion function.

To sum up, the utility model discloses a micromotor positioning clutch deceleration structure, it is applied in the special motor reduction box of high-voltage switch operating mechanism, make the motor have the energy storage put in place and separate the transmission system automatically, has avoided the motor to stall or the dead problem of card; the output of the structure has a one-way function and a clutch function, and has great practical significance for saving space and materials.

Drawings

Fig. 1 is a schematic structural view of a positioning, clutching and speed reducing structure of a micro-motor of the present invention.

Fig. 2 shows a side view of fig. 1.

Fig. 3 is a three-dimensional split sectional view of the reduction gearbox of fig. 1.

Fig. 4 is a plan view illustrating the energy storing process of fig. 3.

FIG. 5 is a plan view of the clutch pawl disengaged from the stored energy to position clutch pawl of FIG. 3.

Fig. 6 is a plan view of the energy storing home drive gear of fig. 3 shown disengaged.

Fig. 7 is a plan view of fig. 3 with energy being restored.

Description of the main elements

In the figure: 1. a motor; 2. a reduction gearbox; 3. an output shaft; 4. a driving gear; 5. a clutch pawl; 6. a clutch pin.

The present invention is described in further detail with reference to the drawings and the detailed description.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 1-7, the present embodiment provides a positioning, clutching and speed reducing structure of a micro-motor, which includes a motor 1, a reduction box 2, an output shaft 3, a driving gear 4, a clutching pawl 5 and a clutching pin 6;

the output end of the motor 1 is connected to multi-stage gear pairs in the reduction gearbox 2, the output shaft 3 is rotatably connected in the reduction gearbox 2 through a bearing and extends out of the reduction gearbox 2, and the driving gear 4 is sleeved on the outer circumferential wall of the output shaft 3 in an empty mode and is connected between the multi-stage gear pairs in a meshed mode; the inner circle surface of the driving gear 4 is provided with a ratchet gap for movably connecting the clutch pawl 5; a positioning groove matched with the clutch pawl 5 is formed in the outer circular surface of the output shaft 3, and the clutch pawl 5 is movably connected into the positioning groove; the clutch pin 6 is fixedly arranged on the inner wall of the reduction gearbox 2, and the clutch pin 6 is used for triggering the clutch pawl 5.

In the embodiment, under the synergistic action of the clutch pawl 5, the positioning groove, the ratchet gap and the clutch pin 6, the connection relation between the clutch pawl 5 and the ratchet gap is flexibly changed, so that the motor 1 has the advantages of storing energy in place and automatically separating and combining the transmission system, avoiding the problem of motor stalling or locking, and realizing the one-way and clutch function of the output of the motor reduction gearbox.

It should be noted that the clutch pawl 5 can be disposed on the output shaft 3 or the driving gear 4 for the same purpose.

The clutch pawl 5 is in limited rotation connection in the positioning groove. The positioning groove can enable the clutch pawl 5 to be movably lapped on the output shaft 3, so that the clutch pawl 5 provides movable transmission torque to prevent the driving gear 4 from being locked or locked.

When the rotor of the motor 1 is driven, the motor 1 provides the meshing power of the driving gear 4 through a multi-stage gear pair. The rotor of the motor 1 provides transmission torque force, and the transmission torque force can be transmitted on the driving gear 4 after being reduced and increased by the multi-stage gear pair.

Referring to fig. 3, when the clutch pawl 5 is located in the ratchet notch and the driving gear 4 rotates, the clutch pawl 5 is pressed by the ratchet notch, and the clutch pawl 5 drives the output shaft 3 to rotate through the positioning groove; when the motor 1 is electrified, the ratchet gaps in the driving gear 4 can press the clutch pawl 5 in the rotating process, and the clutch pawl 5 can drive output rotating motion through the positioning groove.

When the end position of the clutch pawl 5 is in contact with the clutch pin 6, the clutch pin 6 is depressed and disengages from the ratchet notch and the driving gear 4 is rotationally disengaged from the output shaft 3, see fig. 4-5. When the stored energy is in place, namely the output shaft 3 rotates to a fixed position, when the end of the clutch pawl 5 just contacts the clutch pin 6 fixed on the inner wall of the reduction gearbox 2, the clutch pawl 5 can be pressed down by the clutch pin 6 to be separated from the position of the ratchet notch of the driving gear 4; at this time, the drive gear 4 continues to rotate and is disengaged from the output shaft 3.

Referring to fig. 6, when the clutch pawl 5 is out of contact with the clutch pin 6 and the end of the clutch pawl 5 is raised, the clutch pawl 5 is pressed by the ratchet gap again through the rotation action of the driving gear 4, and the clutch pawl 5 drives the output shaft 3 to rotate through the positioning groove. When the spring operating mechanism is switched on, the spring releases energy, and simultaneously the output shaft 3 is driven to rotate to another position, the clutch pawl 5 rotating along with the spring leaves to be in contact with the clutch pin 6, the end head of the clutch pawl 5 is lifted, the driving gear 4 rotates when the motor 1 is powered on, and the ratchet notch on the inner circular surface of the driving gear 4 can be combined with the clutch pawl 5 again to be compressed for storing energy again.

The clutch pin 6 adopts a columnar structure. In other embodiments, the clutch pin 6 may be a plate-like or block-like structure, and may be designed to meet the end of the clutch pawl 5 and satisfy the use of the clutch trigger.

In summary, the positioning, clutching and speed-reducing structure of the micro-motor of the present embodiment has the following advantages compared with the current clutching and speed-reducing structure: the micromotor positioning clutch speed reducing structure is applied to a motor speed reducing box special for a high-voltage switch operating mechanism, so that the motor 1 has the advantages of storing energy in place and automatically separating and combining a transmission system, and the problem of motor stalling or locking is avoided; the output of the structure has a one-way function and a clutch function, and has great practical significance for saving space and materials.

For the naming of each component referred to, the function described in the specification is used as the standard for naming, and is not limited by the specific terms used in the present invention, and those skilled in the art can also choose other terms to describe each component name of the present invention.

Claims

1. A micromotor positioning clutch deceleration structure is characterized by comprising a motor (1), a reduction gearbox (2), an output shaft (3), a driving gear (4), a clutch pawl (5) and a clutch pin (6);

the output end of the motor (1) is connected to a multi-stage gear pair in the reduction gearbox (2), the output shaft (3) is rotatably connected to the reduction gearbox (2) and extends out of the reduction gearbox (2), and the driving gear (4) is sleeved on the outer circumferential wall of the output shaft (3) in an empty mode and is connected between the multi-stage gear pair in a meshed mode; a ratchet notch for movably connecting the clutch pawl (5) is formed in the inner circular surface of the driving gear (4); a positioning groove matched with the clutch pawl (5) is formed in the outer circular surface of the output shaft (3), and the clutch pawl (5) is movably connected into the positioning groove; the clutch pin (6) is fixedly arranged on the inner wall of the reduction gearbox (2), and the clutch pin (6) is used for triggering the clutch pawl (5).

2. The positioning clutch deceleration structure of the micro-machine according to claim 1, characterized in that the clutch pawl (5) is in limited rotational connection in the positioning groove.

3. The positioning, clutching and speed-reducing structure of the micro-motor according to claim 1, characterized in that when the rotor of the motor (1) is driven, the motor (1) provides the meshing power of the driving gear (4) through the multi-stage gear pair.

4. The positioning, clutching and speed-reducing structure of the micro-motor according to claim 1, wherein when the clutching pawl (5) is located in the ratchet gap and the driving gear (4) rotates, the clutching pawl (5) is pressed by the ratchet gap, and the clutching pawl (5) drives the output shaft (3) to rotate through the positioning groove.

5. A micromotor positioning clutch deceleration structure according to claim 4, characterized in that when the end position of the clutch pawl (5) contacts with the clutch pin (6), the clutch pin (6) is pressed down and disengaged from the ratchet notch, and the driving gear (4) is rotationally disengaged from the output shaft (3).

6. The positioning, clutching and speed reducing structure of the micromotor according to claim 5, wherein when the clutching pawl (5) leaves contact with the clutching pin (6) and the tip of the clutching pawl (5) is raised, the clutching pawl (5) is pressed by the ratchet gap again through the action of rotation of the driving gear (4), and the clutching pawl (5) drives the output shaft (3) to rotate through the positioning groove.

7. The micromotor positioning clutch deceleration structure according to claim 1, wherein the clutch pin (6) is of a columnar structure.