阅读说明：本技术 双向离合单向传动微电机减速装置 (Bidirectional clutch one-way transmission micromotor speed reducer ) 是由 陈晶伟 李瑞焕 于 2020-05-15 设计创作，主要内容包括：本发明提供了一种双向离合单向传动微电机减速装置,包括底板、小侧板、电机、蜗杆,所述底板与所述小侧板之间安装有涡轮；所述涡轮内周侧设置有至少两个缺口；所述涡轮内安装有具有轴孔的法兰托盘,所述法兰托盘于轴孔的两侧分别设置有棘爪轴销,两个所述棘爪轴销上分别设置第一棘爪和第二棘爪；所述法兰托盘的轴孔处安装有手动操作轴,所述手动操作轴的底部安装有一T形板,用于使所述第一棘爪和所述第二棘爪与所述缺口脱离；所述法兰托盘与一机构主轴相配合连接。所述双向离合单向传动微电机减速装置通过上述结构,可解决开关机构寿命低、可靠性低的问题。(The invention provides a bidirectional clutch one-way transmission micromotor speed reducer which comprises a bottom plate, a small side plate, a motor and a worm, wherein a turbine is arranged between the bottom plate and the small side plate; at least two notches are formed in the inner peripheral side of the turbine; a flange tray with a shaft hole is installed in the turbine, pawl shaft pins are respectively arranged on two sides of the shaft hole of the flange tray, and a first pawl and a second pawl are respectively arranged on the two pawl shaft pins; a manual operation shaft is arranged at the shaft hole of the flange tray, and a T-shaped plate is arranged at the bottom of the manual operation shaft and used for enabling the first pawl and the second pawl to be separated from the notch; the flange tray is matched and connected with a mechanism main shaft. The bidirectional clutch one-way transmission micromotor speed reducer can solve the problems of short service life and low reliability of a switching mechanism through the structure.)

1. A bidirectional clutch one-way transmission micromotor speed reducer is characterized by comprising a bottom plate, a small side plate, a motor and a worm, wherein a worm wheel is arranged between the bottom plate and the small side plate, the motor is connected with the worm, and the worm is in transmission connection with the worm wheel;

at least two notches are formed in the inner peripheral side of the turbine;

a flange tray with a shaft hole is installed in the turbine, pawl shaft pins are respectively arranged on two sides of the shaft hole of the flange tray, a first pawl and a second pawl are respectively arranged on the two pawl shaft pins, and the first pawl and the second pawl are used for being clamped with the notch; a vertical pin is arranged in the middle of the two pawl shaft pins, a spring is mounted on the vertical pin, and two ends of the spring are respectively connected to the first pawl and the second pawl;

a manual operation shaft is installed at the shaft hole of the flange tray, a T-shaped plate is installed at the bottom of the manual operation shaft, the plane where the T-shaped plate is located is parallel to the plane where the flange tray is located, and the T-shaped plate is arranged corresponding to the first pawl and the second pawl and used for enabling the first pawl and the second pawl to be separated from the notch;

the flange tray is matched and connected with a mechanism main shaft;

the turbine, the flange tray, the manual operation shaft and the mechanism main shaft are all coaxially arranged.

2. The bi-directional clutching one-way transmission micromotor reduction gear of claim 1, wherein: the inner periphery of the turbine is provided with three notches at equal intervals.

3. The bi-directional clutching one-way transmission micromotor reduction gear of claim 1, wherein: and copper sleeves are arranged at the positions where the flange tray is connected with the bottom plate and the small side plates.

4. The bi-directional clutching one-way transmission micromotor reduction gear of claim 1, wherein: the bottom of manual operation axle is provided with the open slot, the T shaped plate include arc portion and with the vertical portion of arc portion internal connection, vertical portion passes the open slot and with the manual operation axle passes through screwed connection fixedly.

5. The bi-directional clutching one-way transmission micromotor reduction gear of claim 1, wherein: the included angle between the two pawl shaft pins and the axle center of the flange tray is 140-180 degrees.

6. The bidirectional clutching one-way transmission micromotor reduction gear of claim 1 or 5, wherein: the included angle between the two pawl shaft pins and the axis of the flange tray is 150 degrees.

7. The bidirectional clutching one-way transmission micromotor reduction gear of claim 1 or 5, wherein: the first pawl and the second pawl are symmetrically arranged and provided with pawl salient points, and the pawl salient points are matched with the notches.

8. The bi-directional clutching one-way transmission micromotor reduction gear of claim 1, wherein: the motor is connected with the worm through a coupling, and worm bearings are arranged on two sides of the worm.

Technical Field

The invention relates to a speed reducer, in particular to a speed reducer of a bidirectional clutch one-way transmission micromotor.

Background

At present, the motor reducer used in 12KV gas-filled switchgear in the power supply and distribution industry needs to be manually operated and electrically operated, positive rotation and negative rotation exist, the electric operation and the manual operation need to be operated independently, only one form can be selected by the electric operation and the manual operation at each time, and the electric operation and the manual operation are not linked with each other.

The motor reducer of the SF6 gas insulated switchgear of 12KV commonly used at present has more or less some problems:

1. the opening and closing are not in place due to the angle problem;

2. the flange tray in the clutch system has the problems of lack of freedom degree control points, jamming and large operating force;

3. the switching mechanism has a short service life and low reliability.

Therefore, it is necessary to design a new bidirectional clutch one-way transmission micromotor speed reducer to overcome the above problems.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a bidirectional clutch one-way transmission micromotor speed reducer which can solve the problems of low service life and low reliability of a switching mechanism.

The invention is realized by the following steps:

the invention provides a bidirectional clutch one-way transmission micromotor speed reducer which comprises a bottom plate, a small side plate, a motor and a worm, wherein a worm wheel is arranged between the bottom plate and the small side plate, the motor is connected with the worm, and the worm is in transmission connection with the worm wheel;

at least two notches are formed in the inner peripheral side of the turbine;

a flange tray with a shaft hole is installed in the turbine, pawl shaft pins are respectively arranged on two sides of the shaft hole of the flange tray, a first pawl and a second pawl are respectively arranged on the two pawl shaft pins, and the first pawl and the second pawl are used for being clamped with the notch; a vertical pin is arranged in the middle of the two pawl shaft pins, a spring is mounted on the vertical pin, and two ends of the spring are respectively connected to the first pawl and the second pawl;

a manual operation shaft is installed at the shaft hole of the flange tray, a T-shaped plate is installed at the bottom of the manual operation shaft, the plane where the T-shaped plate is located is parallel to the plane where the flange tray is located, and the T-shaped plate is arranged corresponding to the first pawl and the second pawl and used for enabling the first pawl and the second pawl to be separated from the notch;

the flange tray is matched and connected with a mechanism main shaft;

the turbine, the flange tray, the manual operation shaft and the mechanism main shaft are all coaxially arranged.

Further, the inner circumference side of the turbine is provided with three notches at equal intervals.

Furthermore, the flange tray and the bottom plate and the small side plate are connected through copper sleeves.

Further, the bottom of manual operation axle is provided with the open slot, the T shaped plate include arc portion and with the vertical portion of arc portion middle part inside connection, vertical portion pass the open slot and with manual operation axle passes through screwed connection and fixes.

Furthermore, the included angle between the two pawl shaft pins and the axle center of the flange tray is 140-180 degrees.

Further, the included angle between the two pawl shaft pins and the axis of the flange tray is 150 degrees.

Furthermore, the first pawl and the second pawl are symmetrically arranged and provided with pawl salient points, and the pawl salient points are matched with the notches.

Furthermore, the motor is connected with the worm through a coupling, and worm bearings are arranged on two sides of the worm.

The invention has the following beneficial effects:

the bidirectional clutch one-way transmission micromotor speed reducer realizes a manual operation process and an electric operation process through a structure provided with the first pawl, the second pawl and the T-shaped plate, and is provided with a pawl and notch matched structure, so that a freedom control point can be provided for the flange tray, the problem of high jamming and operating force can be effectively solved, the problem of non-in-place opening and closing can be solved, and the problems of low service life and low reliability of a switching mechanism are indirectly solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a front view of a bi-directional clutching one-way transmission micro-motor reduction gear provided by an embodiment of the invention;

FIG. 2 is a side view of a bi-directional clutching one-way transmission micro-motor reduction gear provided by an embodiment of the present invention;

FIG. 3 is a schematic diagram of a bidirectional clutch one-way transmission micro-motor speed reducer for manually operating a T-shaped plate counterclockwise according to an embodiment of the invention;

FIG. 4 is a schematic view of another perspective of FIG. 3;

FIG. 5 is an assembly view of the manually operable shaft and T-shaped plate provided in accordance with an embodiment of the present invention;

fig. 6 is a schematic view of fig. 5 from another viewing angle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 6, the invention provides a bidirectional clutch one-way transmission micromotor speed reducer, which comprises a bottom plate 11, a small side plate 9, a motor 1 and a worm 2, wherein a worm wheel 8 is arranged between the bottom plate 11 and the small side plate 9, the motor 1 is connected with the worm 2, and the worm 2 is in transmission connection with the worm wheel 8. Further, the motor 1 is connected with the worm 2 through a coupling 14, and worm bearings 15 are arranged on two sides of the worm 2.

At least two notches 81 are arranged on the inner peripheral side of the turbine 8; in the preferred embodiment, three notches 81 are provided at equal intervals on the inner peripheral side of the turbine 8.

As shown in fig. 1 to 6, a flange tray 10 having a shaft hole is installed in the turbine 8, the flange tray 10 is provided with a detent shaft pin 16 on both sides of the shaft hole, a first detent 61 and a second detent 62 are respectively provided on the two detent shaft pins 16, and the first detent 61 and the second detent 62 are used for being engaged with the notch 81; further, the first pawl 61 and the second pawl 62 are symmetrically arranged and are provided with pawl protrusions (not numbered) which are matched with the notches 81.

An upright pin 13 is arranged in the middle of the two pawl shaft pins 16, a spring 12 is mounted on the upright pin 13, and two ends of the spring 12 are respectively connected to the first pawl 61 and the second pawl 62.

As shown in fig. 1 to 6, a manual operating shaft 7 is installed at the shaft hole of the flange tray 10, a T-shaped plate 5 is installed at the bottom of the manual operating shaft 7, a plane where the T-shaped plate 5 is located and a plane where the flange tray 10 is located are parallel to each other, and the T-shaped plate 5 is disposed corresponding to the first pawl 61 and the second pawl 62, so that the first pawl 61 and the second pawl 62 are disengaged from the notch 81.

The flange tray 10 is matched and connected with a mechanism main shaft 3, and a bearing sleeve 4 is arranged at the connecting position of the mechanism main shaft 3 and the bottom plate 11; the turbine 8, the flange tray 10, the manual operation shaft 7 and the mechanism main shaft 3 are all coaxially arranged.

Further, the flange tray 10 with the bottom plate 11 with the position that little curb plate 9 is connected all is provided with copper sheathing 17, can make flange tray 10 and turbine 8 firm through setting up copper sheathing 17, can not take place the phenomenon that breaks away from.

Further, the bottom of the manual operation shaft 7 is provided with an open slot 71, the T-shaped plate 5 includes an arc-shaped portion 51 and a vertical portion 52 connected to the middle of the arc-shaped portion 51, and the vertical portion 52 penetrates through the open slot 71 and is fixed to the manual operation shaft 7 through a screw connection.

Further, the included angle between the two ratchet shaft pins 16 and the axle center of the flange tray 10 is 140-180 °. In the preferred embodiment, the two detent shaft pins 16 are at an angle of 150 ° to the axis of the flange tray 10.

During manual operation:

the manual operation shaft 7 is pulled by a special manual operation tool, and the manual operation shaft 7 drives the T-shaped plate 5 at the bottom to rotate. When the manual operating shaft 7 is pulled by the operating lever to rotate, the T-shaped plate 5 rotates N degrees simultaneously with the manual operating shaft, and the flange tray 10 is driven to rotate. The T-shaped plate 5 simultaneously pushes away the pawl salient points of the first pawl 61 and the second pawl 62 to lift and separate from the notch 81 on the inner side of the worm wheel, and the worm wheel is fixed; and the first pawl 61 is in the sliding position, the worm wheel is disengaged, the manual operation shaft 7 only drives the flange tray 10 to rotate, and the connecting end of the front end of the flange tray 10 and the mechanism main shaft 3 is provided with straight threads matched with the flange tray, so that the manual operation shaft 7 rotates to finally drive the mechanism main shaft 3 to rotate by N degrees to complete the manual operation.

When in electric operation:

the motor 1 drives the worm 2 through the coupling 14, and the worm 2 rotates to drive the worm wheel 8. The worm wheel rotates at a low speed through the speed reduction relationship between the worm wheel and the worm 2, the inner side of the worm wheel is provided with three notches 81 or two notches 81, and the three notches 81 are distributed at equal intervals; a first pawl 61 and a second pawl 62 are arranged on the flange tray 10, wherein a salient point of one pawl falls into a gap 81 on the inner side of the worm wheel; two pawl shaft pins 16 are welded on two sides of a central shaft hole of the flange tray 10, the included angle between the two pawl shaft pins 16 and the shaft center of the flange tray 10 is 140-180 degrees, the best design is 150 degrees, and a first pawl 61 and a second pawl 62 are respectively arranged on the (left and right) two pawl shaft pins 16. One of the pawl bumps falls into a notch 81 in the inner diameter of the worm gear; the other pawl is in a sliding state. The worm wheel rotates to drive the first pawl 61 and the second pawl 62 to move, the first pawl 61 and the second pawl 62 drive the flange tray 10 to rotate through the pawl shaft pin 16, the flange tray 10 is connected with the mechanism spindle 3 through straight threads, and therefore the mechanism spindle 3 is driven to rotate to complete switching on or switching off.

In conclusion, the bidirectional clutch one-way transmission micromotor 1 speed reduction device realizes a manual operation process and an electric operation process through the structure of the first pawl 61, the second pawl 62 and the T-shaped plate 5, and the structure of the pawl matched with the notch 81 is arranged, so that a freedom control point can be provided for the flange tray 10, the problem of high clamping force and high operating force can be effectively solved, the problem of non-in-place opening and closing can be solved, and the problems of low service life and low reliability of a switching mechanism are indirectly solved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.