Electric operating mechanism

Abstract

An electric operating mechanism comprises: a frame; the motor comprises an output shaft; the primary transmission module is fixed to the rack, the primary transmission module comprises a plurality of primary gears, and the axes of the primary gears are parallel to one another; the secondary transmission system comprises at least one secondary gear; a slide block; wherein the output shaft is coupled to the primary transmission module, the primary transmission module is coupled to the secondary transmission system, and the secondary transmission system is coupled to the sliding block so as to transmit power of the motor to the sliding block.

Description

Technical Field

[0001] The present invention relates to an electric operating mechanism, and more particularly, to an electric operating mechanism for driving the opening and closing of a switch. Background Art

[0002] In the existing electric operating mechanisms for driving the opening and closing of a switch, the transmission system is not easy to replace and repair, and it is not convenient to configure different transmission ratios for specific application requirements.

[0003] Therefore, it is desirable to propose an electric operating mechanism to overcome the defects in the above-mentioned prior art. Summary of the Invention

[0004] According to a first aspect of the present invention, there is provided an electric operating mechanism, comprising: a frame; a motor including an output shaft; a primary transmission module fixed to the frame, the primary transmission module including a plurality of primary gears, the axes of the plurality of primary gears being parallel to each other; a secondary transmission system including at least one secondary gear; a slider; wherein the output shaft is coupled to the primary transmission module, the primary transmission module is coupled to the secondary transmission system, and the secondary transmission system is coupled to the slider to transmit the power of the motor to the slider.

[0005] According to this solution, through the primary transmission module, the transmission system is easy to replace and repair, and a transmission system with different transmission ratios can be configured for specific application requirements.

[0006] In some solutions, the primary transmission module has a housing with a notch, the housing at least partially surrounds the plurality of primary gears, and the primary gear in the primary transmission module coupled to the secondary gear is coupled to the secondary gear via the notch, and the housing is fixed to the frame by screws.

[0007] In some solutions, a slot may be provided on the secondary gear in the secondary transmission system coupled to the slider, so that the secondary gear in the secondary transmission system coupled to the slider can be manually operated by inserting a handle into the slot.

[0008] In some solutions, the primary gear in the primary transmission module coupled to the secondary gear may be an incomplete gear.

[0009] According to this solution, when performing manual operation, the secondary gear disengages from the primary gear, so that the manual operation is not affected by the motor drive.

[0010] In some solutions, the axis of each of at least one secondary gear is parallel to the axis of each of the plurality of primary gears.

[0011] In some solutions, at least one pair of primary gears in the primary transmission module are coaxial gears and / or at least one pair of primary gears are meshing gears.

[0012] According to this solution, more transmission ratios can be achieved through the combination of coaxial gears and meshing gears to meet more application requirements.

[0013] In some solutions, the primary transmission module can be a reduction transmission module.

[0014] In some solutions, the primary transmission module can be a four-stage reduction transmission module.

[0015] In some solutions, the electric operating mechanism can further include a guide rail. A secondary gear connected to a slider in the secondary transmission system is attached with a protrusion. The slider is provided with a chute, and the protrusion can move in the chute to drive the slider to move along the guide rail.

[0016] According to the second aspect of the present invention, a switching device is provided, including an electric operating mechanism according to the first aspect of the present invention. Brief Description of the Drawings

[0017] Figure 1 A schematic cross-sectional view of an electric operating mechanism according to an embodiment of the present invention is shown;

[0018] Figure 2 A schematic perspective view of an electric operating mechanism according to an embodiment of the present invention is shown;

[0019] Figure 3 A schematic diagram of a primary transmission module according to an embodiment of the present invention is shown;

[0020] Figure 4 A schematic diagram of a protrusion according to the present invention is shown;

[0021] Figure 5 A schematic diagram of a chute according to the present invention is shown.

[0022] Reference Numerals: 100 Electric Operating Mechanism, 110 Motor, 120 Primary Transmission Module, 122 Primary Gear, 122-1 First Gear, 122-2 Second Gear, 122-3 Third Gear, 122-4 Fourth Gear, 122-5 Fifth Gear, 122-6 Sixth Gear, 122-7 Seventh Gear, 122-8 Eighth Gear, 124 Housing, 126 Notch, 130 Secondary Transmission System, 132 Secondary Gear, 134 Slot, 136 Protrusion, 140 Slider, 142 Chute. Detailed Description of the Embodiments

[0023] In order to make the objectives, solutions, and advantages of the technical solutions of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the ordinary meanings in the art. The same reference numerals in the drawings represent the same components.

[0024] Figure 1 and Figure 2 shows a schematic diagram of an electric operating mechanism 100 according to an embodiment of the present invention. The electric operating mechanism 100 mainly includes a motor 110, a primary transmission module 120, a secondary transmission system 130, and a slider 140. The power output by the motor 110 is sequentially transmitted to the slider 140 via the primary transmission module 120 and the secondary transmission system 130, and the movement of the slider 140 realizes the control of, for example, a switchgear. Specifically, the primary transmission module 120 is fixed to the frame and includes a plurality of primary gears 122. The axes of the plurality of primary gears 122 are parallel to each other. The secondary transmission system 130 includes at least one secondary gear 132. The output shaft is coupled to the primary transmission module 120, the primary transmission module 120 is coupled to the secondary transmission system 130, and the secondary transmission system 130 is coupled to the slider 140, so that the power output by the motor 110 is sequentially transmitted to the slider 140 via the primary transmission module 120 and the secondary transmission system 130. Through the primary transmission module 120, the transmission system is easy to replace and repair, and a transmission system with a different transmission ratio can be configured for specific application requirements (for example, specific output torque requirements and different motor parameters, etc.), increasing the flexibility of use of the electric operating mechanism 100.

[0025] Figure 3 shows a schematic diagram of the primary transmission module 120 according to an embodiment of the present invention. The primary transmission module 120 may have a housing 124. The housing 124 has a notch 126. The housing 124 at least partially surrounds the plurality of primary gears 122. The primary gear 122 in the primary transmission module 120 coupled to the secondary gear 132 is coupled to the secondary gear 132 via the notch 126. The housing 124 is fixed to the frame by screws. It should be understood that the present invention is not intended to limit the fixing manner between the housing 124 and the frame, and any other suitable manner such as snap-fit or magnetic attraction fit can also be used to detachably fix the primary transmission module 120 to the frame.

[0026] Preferably, a slot 134 may be provided on the secondary gear 132 coupled to the slider 140 in the secondary drive system 130, so that the secondary gear 132 coupled to the slider 140 in the secondary drive system 130 can be manually operated by inserting a handle into the slot 134. Additionally preferably, the primary gear 122 coupled to the secondary gear 132 in the primary drive module 120 may be an incomplete gear. In this way, when a manual operation is performed, the secondary gear 132 is disengaged from the primary gear 122, so that the manual operation is not affected by the drive of the motor 110. Further, since the worm-gear drive mechanism is replaced with a gear drive, even if the motor 110 is undesirably blocked and cannot rotate, the incomplete gear can be disengaged manually (e.g., by operating the handle inserted into the slot 134).

[0027] Preferably, the axis of each of at least one secondary gear 132 is parallel to the axis of each of the plurality of primary gears 122. In this way, the space utilization rate of the drive system can be further improved, which is beneficial to the miniaturization of the entire mechanism. Preferably, at least one pair of primary gears in the primary drive module 120 are coaxial gears and / or at least one pair of primary gears are meshing gears. In this way, more transmission ratios can be achieved through the combination of coaxial gears and meshing gears to meet more application requirements.

[0028] Optionally, the primary transmission module 120 may be a speed reduction transmission module. For example, the primary transmission module 120 may be a four-stage speed reduction transmission module. Specifically, the primary transmission module 120 includes a first gear 122-1, a second gear 122-2, a third gear 122-3, a fourth gear 122-4, a fifth gear 122-5, a sixth gear 122-6, a seventh gear 122-7, and an eighth gear 122-8. The output shaft of the motor 110 is coupled to the first gear 122-1 to transmit the torque output by the motor to the first gear 122-1. The first gear 122-1 is meshed and coupled with the second gear 122-2. The second gear 122-2 is coaxially coupled with the third gear 122-3. The third gear 122-3 is meshed and coupled with the fourth gear 122-4. The fourth gear 122-4 is coaxially coupled with the fifth gear 122-5. The fifth gear 122-5 is meshed and coupled with the sixth gear 122-6. The sixth gear 122-6 is coaxially coupled with the seventh gear 122-7. The seventh gear 122-7 is meshed and coupled with the eighth gear 122-8. A pair of meshed gears in the primary transmission module 120 can be used to reduce the rotational speed, while a pair of coaxially coupled gears can change the size of the gears without changing the rotational speed, achieving the use of relatively small primary gears for transmission, which is beneficial to the miniaturization of the electric operating mechanism 100. Since the number of teeth of the first gear 122-1 is less than that of the second gear 122-2, the rotational speed decreases during the power transmission from the first gear 122-1 to the second gear 122-2. Similarly, the rotational speed also decreases during the power transmission from the third gear 122-3 to the fourth gear 122-4, from the fifth gear 122-5 to the sixth gear 122-6, and from the seventh gear 122-7 to the eighth gear 122-8. In summary, the primary transmission module undergoes four stages of speed reduction (from the first gear 122-1 to the second gear 122-2 is the first stage of speed reduction, from the third gear 122-3 to the fourth gear 122-4 is the second stage of speed reduction, from the fifth gear 122-5 to the sixth gear 122-6 is the third stage of speed reduction, and from the seventh gear 122-7 to the eighth gear 122-8 is the fourth stage of speed reduction). It should be understood that the gear arrangement in the above primary transmission module 120 is only exemplary, and the present invention is not intended to limit the specific meshing form between the gears and the number of stages of speed reduction, but includes any other suitable form of gear set that can achieve power transmission.

[0029] Preferably, as Figure 4 and Figure 5As shown, the electric operating mechanism 100 may further include a guide rail. A secondary gear 132 in the secondary drive system 130 that is coupled to the slider 140 is attached with a protrusion 136. The slider 140 is provided with a chute 142. The protrusion 136 can move in the chute 142 to drive the slider 140 to move along the guide rail. The electric operating mechanism 100 provided by the present invention can be used for switching equipment. By controlling the movement of the slider 140 through the electric operating mechanism 100, the moving contact is driven to move, so that the moving contact contacts or separates from the static contact, thereby realizing the closing or opening of the switching equipment.

[0030] In this text, multiple exemplary embodiments of the present invention are described in detail with reference to preferred embodiments. However, those skilled in the art can understand that without departing from the concept of the present invention, various variations and modifications can be made to the above specific embodiments, and various technical features and structures proposed by the present invention can also be combined without exceeding the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. An electric operating mechanism, characterized in that: include: frame; a motor, including an output shaft; A primary transmission module, fixed to the frame, the primary transmission module comprising a plurality of primary gears, the axes of the plurality of primary gears being parallel to each other; A secondary transmission system including at least one secondary gear; slider; The output shaft is coupled to the primary transmission module, the primary transmission module is coupled to the secondary transmission system, and the secondary transmission system is coupled to the slider to transmit the power of the motor to the slider.

2. The electric operating mechanism according to claim 1, characterized in that: The primary transmission module has a housing having a notch. The housing at least partially surrounds the plurality of primary gears. The primary gear in the primary transmission module connected to the secondary gear is connected to the secondary gear via the notch. The housing is fixed to the frame by screws.

3. The electric operating mechanism according to claim 1, characterized in that: A slot is provided on the secondary gear connected to the slider in the secondary transmission system, so that the secondary gear connected to the slider in the secondary transmission system can be manually operated by inserting a handle into the slot.

4. The electric operating mechanism according to claim 1, characterized in that: The primary gear in the primary transmission module connected to the secondary gear is an incomplete gear.

5. The electric operating mechanism according to claim 1, characterized in that: An axis of each of the at least one secondary gear is parallel to an axis of each of the plurality of primary gears.

6. The electric operating mechanism according to claim 5, characterized in that: At least one pair of primary gears in the primary transmission module are coaxial gears and / or at least one pair of primary gears are meshing gears.

7. The electric operating mechanism according to claim 6, characterized in that: The primary transmission module is a reduction transmission module.

8. The electric operating mechanism according to claim 7, characterized in that: The primary transmission module is a four-stage reduction transmission module.

9. The electric operating mechanism according to claim 1, characterized in that: It also includes a guide rail, a secondary gear in the secondary transmission system connected to the slider is attached with a protrusion, the slider is provided with a slide groove, and the protrusion can move in the slide groove to drive the slider to move along the guide rail.

10. A switch device, characterized in that: The invention comprises an electric operating mechanism according to any one of claims 1 to 9.

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