One-way transmission clutch mechanism and electric operating device

Abstract

According to the one-way transmission clutch mechanism and the electric operating device, the one-way transmission clutch mechanism comprises a driving wheel, a guide plate, a movable shaft, a movable idle wheel and a driven wheel, the driving wheel is used for being matched with a driving mechanism to receive driving force, the driving wheel and the driven wheel are rotationally arranged, the movable idle wheel is connected with the movable shaft, and the movable idle wheel is connected with the guide plate. The guide plate is provided with a movable groove, the movable shaft is inserted into the movable groove, the movable idle wheel is arranged in a rotating mode, the movable idle wheel and the movable shaft can move in the directions close to the driven wheel and away from the driven wheel along the movable groove, and the driving wheel is connected with the movable idle wheel and drives the movable idle wheel to rotate in the first direction and the second direction which are opposite. The driving wheel drives the movable idle wheel and the movable shaft to move close to the driven wheel when driving the movable idle wheel to rotate in the first direction, so that the movable idle wheel is meshed with the driven wheel and drives the driven wheel to rotate, and the driving wheel drives the movable shaft to move away from the driven wheel when driving the movable idle wheel to rotate in the second direction, so that the movable idle wheel is separated from the driven wheel.

Description

Technical Field

[0001] The utility model relates to the field of low-voltage electrical appliances, in particular to a one-way transmission clutch mechanism and an electric operating device. Background Art

[0002] With the development of power system automation and intelligent power equipment, power equipment has gradually realized automation, informationization and intelligent functions such as remote control, remote signaling and remote measurement under the premise of safety and reliability. As a key component of switchgear, circuit breakers need to be able to meet the remote operation mode.

[0003] However, most of the electric operating mechanisms in the current low-voltage industry use a ratchet structure to achieve one-way transmission. When the transmitted force is opposite to the transmission direction, the pawl and ratchet do not transmit power. Only when the transmitted force is in the same direction as the transmission direction will the ratchet and pawl move to achieve meshing transmission. However, such a transmission structure is usually more complicated, with high manufacturing costs and limited load-bearing capacity. During operation, the coordination of the ratchet and pawl will generate loud noise and cause greater wear, resulting in the inability of circuit breakers and other switching electrical appliances to open and close normally, resulting in poor reliability. Utility Model Content

[0004] The purpose of the utility model is to overcome at least one defect of the prior art and provide a one-way transmission clutch mechanism and an electric operating device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A one-way transmission clutch mechanism comprises a driving wheel, a guide plate, a movable shaft, a movable idler wheel and a driven wheel, wherein the driving wheel is used to cooperate with a driving mechanism to receive a driving force, the driving wheel and the driven wheel are respectively rotatably arranged, the movable idler wheel is connected to the movable shaft, the guide plate is provided with a movable groove, the movable shaft is inserted into the movable groove, the movable idler wheel is rotatably arranged and can move along the movable groove toward and away from the driven wheel together with the movable shaft, the driving wheel is connected to the movable idler wheel, driving the movable idler wheel to rotate in opposite first and second directions respectively, when the driving wheel drives the movable idler wheel to rotate in a first direction, it drives the movable idler wheel and the movable shaft to move close to the driven wheel, so that the movable idler wheel meshes with the driven wheel, and the movable idler wheel drives the driven wheel to rotate, and when the driving wheel drives the movable idler wheel to rotate in the second direction, it drives the movable shaft to move away from the driven wheel, so that the movable idler wheel is separated from the driven wheel.

[0007] Preferably, the movable idler wheel is rotatably or fixedly arranged on the movable shaft.

[0008] Preferably, an idler wheel spring is also included, and the idler wheel spring applies a force to the movable idler wheel to approach the driven wheel.

[0009] Preferably, a second support plate is provided opposite to the guide plate, the second support plate is connected to the guide plate through a support column, a support groove corresponding to the movable groove is provided on the second support plate, the movable idler wheel is arranged between the second support plate and the guide plate, and the two ends of the movable shaft are respectively inserted into the movable groove and the support groove.

[0010] Preferably, the angle α between the line connecting the rotation center of the driven wheel and the rotation center of the movable idler wheel and the moving direction of the movable shaft is an oblique angle.

[0011] Preferably, an extension line of the moving direction of the movable shaft is located between the rotation center of the driven wheel and the rotation center of the driving wheel.

[0012] Preferably, the speed ratio between the movable idler wheel and the driven wheel is 1.

[0013] The one-way transmission clutch mechanism of the utility model controls the moving direction of the active idler wheel by the rotation direction, and the active shaft and the active groove are guided and limited, so that the active idler wheel will mesh with the driven wheel for transmission only when the active idler wheel and the active shaft move close to the driven wheel when the active idler wheel rotates in the first direction, and when the active idler wheel and the active shaft move away from the driven wheel when the active idler wheel rotates in the second direction, the active idler wheel and the active shaft move away from the driven wheel, the active idler wheel is separated from the driven wheel and does not transmit power, and the one-way transmission is realized without the ratchet principle, and has the characteristics of simple structure and reliable transmission; moreover, when rotating in the second direction, the active idler wheel is separated from the driven wheel, and no idling noise is generated and no wear occurs.

[0014] An electric operating device comprises an electric drive mechanism, the one-way transmission clutch mechanism, a transmission mechanism and a driving member, wherein the electric drive mechanism is connected to the driving wheel of the one-way transmission clutch mechanism, the driven wheel of the one-way transmission clutch mechanism is connected to the transmission mechanism, the driving member is arranged for linear movement and is provided with a driving part for driving a handle, and the driven wheel drives the driving member to move back and forth linearly through the transmission mechanism.

[0015] Preferably, the electric drive mechanism includes an electromagnetic mechanism and a drive rod, the electromagnetic mechanism includes a moving iron core and a single set of electromagnetic coils, the drive rod is connected to the drive wheel, and the moving iron core drives the drive wheel to rotate through the drive rod when it moves linearly.

[0016] Preferably, the driving wheel is an incomplete gear, comprising a toothed disc and a swinging rod connected to the toothed disc, the toothed disc meshes with the driven wheel, and one end of the swinging rod away from the toothed disc is connected to the driving rod.

[0017] Preferably, the electric drive mechanism includes an electric motor and a speed change mechanism connected to an output end of the electric motor, and the speed change mechanism is used to drive the drive wheel to rotate.

[0018] Preferably, the driving wheel is provided with an integrally formed fourth gear, the fourth gear is meshed with the speed change mechanism, and the speed change mechanism drives the driving wheel to rotate via the fourth gear.

[0019] Preferably, the speed change mechanism includes a first speed gear, a second speed gear and a third speed gear that are meshed in sequence, the first speed gear is connected to the motor, the drive wheel is provided with an integrally formed fourth gear, the fourth gear is meshed with the third speed gear, and the motor drives the fourth gear to rotate through the first speed gear, the second speed gear and the third speed gear in sequence.

[0020] Preferably, the transmission mechanism includes a crank member, which is rotatably arranged and has a rotating shaft and a push rod rotating around the rotating shaft. The driving member is provided with a slide groove, and the push rod is inserted into the slide groove. The driven wheel of the one-way transmission clutch mechanism is directly or indirectly connected to the crank member of the transmission mechanism, driving the crank member to rotate unidirectionally. The unidirectional rotation of the crank member drives the push rod to rotate around the rotating shaft. The push rod moves along the slide groove and pushes the driving member to slide linearly in the operating direction of the handle through the slide groove.

[0021] Preferably, the transmission mechanism includes a push rod, a driven wheel and a rotating shaft, or a driven wheel is sleeved on the rotating shaft to directly drive the rotating shaft to rotate, the push rod and the rotating shaft are eccentrically arranged and connected through a crank plate, the driving member is provided with a slide groove, the push rod is inserted into the slide groove, and the driven wheel rotates unidirectionally to drive the push rod to rotate around the rotating shaft, the push rod moves along the slide groove and pushes the driving member to slide linearly along the operating direction of the handle through the slide groove.

[0022] Preferably, the slide groove is in the shape of an elongated strip, and the length direction of the slide groove is perpendicular to the operating direction of the handle.

[0023] Preferably, the transmission mechanism includes a first rocker arm and a second rocker arm, the first rocker arm is pivotally installed through a rotating end at one end, and a driving end at the other end is connected to a driving member, one end of the second rocker arm is connected to an eccentric position of a driven wheel, and the end of the second rocker arm away from the driven wheel is connected to the middle part of the first rocker arm, when the driven wheel rotates, it drives the second rocker arm to pull the first rocker arm to rotate around the rotating end, and the driving end of the first rocker arm swings back and forth to drive the driving member to move back and forth along the operating direction of the handle.

[0024] Preferably, the transmission mechanism is provided with two first rocker arms, the two first rocker arms are arranged in parallel, and the second rocker arm is rotationally connected to one of the first rocker arms.

[0025] Preferably, the driving member is provided with a driving groove as a driving portion, the driving groove is sleeved on the handle, and a roller is provided on the driving portion of the driving member.

[0026] The electric operating device of the utility model, by providing a one-way transmission clutch mechanism, does not need to realize one-way transmission through the ratchet principle, and not only has the characteristics of reliable transmission, but also has a simple structure and lower cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the one-way transmission clutch mechanism in the first embodiment of the utility model;

[0028] Figure 2 This utility model hides Figure 1 Schematic diagram of the structure behind the middle guide plate;

[0029] Figure 3-4 They are respectively schematic diagrams of the cooperation of the driving wheel, the movable idler wheel and the driven wheel in the first embodiment of the utility model;

[0030] Figure 5 It is a schematic diagram of the cooperation between the driving wheel and the driving rod in the first embodiment of the utility model;

[0031] Figure 6 It is the electrical schematic diagram of the controller of the utility model;

[0032] Figure 7 It is a structural schematic diagram of the driving member in the first embodiment of the utility model;

[0033] Figure 8 It is a structural schematic diagram of a crank member in the first embodiment of the utility model;

[0034] Fig. 9 It is another structural schematic diagram of the crank member in the first embodiment of the utility model;

[0035] Fig.10 It is a structural schematic diagram of the one-way transmission clutch mechanism in the second embodiment of the utility model;

[0036] Fig.11 This utility model hides Figure 7 A schematic diagram of the structure after the second bracket;

[0037] Fig.12 It is a structural schematic diagram of the speed change mechanism of the utility model;

[0038] Fig.13 This is the second embodiment of the transmission mechanism of the utility model;

[0039] In the figure, the transmission mechanism 2; the rotating shaft 21; the teeth 210; the push rod 22; the crank plate 23; the driving member 3; the first bracket 4; the moving iron core 11; the electromagnetic coil 12; the driving shaft 13; the driving groove 14; the driving rod 51; the handle 6; the controller 71; the terminal 72; the opening terminal 73; the common terminal 74; the closing terminal 75; the contact piece 76; the sliding groove 30; the side plate 31; the top plate 32; the guide plate 38; the driving wheel 52; the driven wheel 53; the toothed disc 5 21; swing rod 522; first shaft 523; second spring hole 524; second return spring 525; movable shaft 56; movable idler gear 57; movable groove 380; second support plate 382; support column 383; support groove 384; idler gear spring 58; first rocker arm 25; second rocker arm 26; motor 15; speed change mechanism 16; first speed change gear 161; second speed change gear 162; third speed change gear 163; fourth gear 164. DETAILED DESCRIPTION

[0040] The specific implementation of the one-way transmission clutch mechanism of the utility model is further described below in conjunction with the embodiments given in the accompanying drawings. The one-way transmission clutch mechanism of the utility model is not limited to the description of the following embodiments.

[0041] like Figure 1-2As shown, the one-way transmission clutch mechanism of the utility model includes a driving wheel 52, a guide plate 38, a movable shaft 56, a movable idler wheel 57 and a driven wheel 53. The driving wheel 52 and the driven wheel 53 are respectively rotatably arranged. The driving wheel 52 serves as an input member of the one-way transmission clutch mechanism, and is used to cooperate with the driving mechanism to receive the driving force. It can be driven by the driving mechanism to rotate clockwise and counterclockwise. The driving mechanism can be an electric driving mechanism, and the electric driving mechanism includes an electromagnetic mechanism or a motor 15, and can also be a manual driving mechanism, for example, manually directly or indirectly driving the driving wheel 52 to rotate. The movable idler wheel 57 is connected to the movable shaft 56, and the guide plate 38 is provided with a movable groove 380 for inserting the movable shaft 56. The movable shaft 56 is inserted into the movable groove 380. The movable idler wheel 57 is rotatably arranged and can move along the movable groove 380 with the movable shaft 56 toward and away from the driven wheel 53. The movable groove 380 plays a guiding and limiting role. The driving wheel 52 is connected to the movable idler wheel 57, driving the movable idler wheel 57 to rotate in opposite first and second directions respectively. When the driving wheel 52 drives the movable idler wheel 57 to rotate in the first direction, The movable idler wheel 57 and the movable shaft 56 move close to the driven wheel 53, so that the movable idler wheel 57 meshes with the driven wheel 53, and the movable idler wheel 57 drives the driven wheel 53 to rotate. When the driving wheel 52 drives the movable idler wheel 57 to rotate in the second direction, it drives the movable idler wheel 57 and the movable shaft 56 to move away from the driven wheel 53, so that the movable idler wheel 57 is separated from the driven wheel 53. The movable idler wheel 57 rotates idly and does not drive the driven wheel 53 to rotate, thereby realizing a one-way transmission clutch mechanism in which the driven wheel 53 can only rotate in one direction. The movable idler wheel 57 is separated from the driven wheel 53, and no idling noise or wear is generated.

[0042] In the one-way transmission clutch mechanism of this embodiment, the movable idler wheel 57 controls the moving direction by the rotation direction, and the movable shaft 56 and the movable groove 380 are guided and limited, so that the movable idler wheel 57 will only mesh with the driven wheel 53 for transmission when rotating in the first direction, and will be separated from the driven wheel 53 and not transmit when rotating in the second direction. The one-way transmission is realized without the ratchet principle, and has the characteristics of simple structure and reliable transmission. The driving wheel 52 is used as the input part of the one-way transmission clutch mechanism, and the driven wheel 53 is used as the output part of the one-way transmission clutch mechanism, so that the driving mechanism can only drive the driven wheel 53 to rotate in one direction, and the one-way rotation of the driven wheel 53 can be used to drive other components or other transmission mechanisms, so as to realize various controls that only require one-way rotation.

[0043] like Figure 3 As shown, the driving wheel 52 rotates clockwise, driving the movable idler wheel 57 to rotate counterclockwise in the first direction and driving the movable idler wheel 57 to move toward the direction close to the driven wheel 53. The forces acting on the movable idler wheel 57 from the driving wheel 52 and the driven wheel 53 are F1 and F2 respectively, wherein the combined force of F1 and F2 is F合 , F 合 The direction is toward the meshing direction of the active idler wheel 57 and the driven wheel 53. In the figure, the active idler wheel 57 and the driven wheel 53 are already in contact, so the active idler wheel 57 and the driven wheel 53 can be reliably meshed. When the active idler wheel 57 and the driven wheel 53 are not in contact, the active idler wheel 57 can be driven to move toward the direction close to the driven wheel 53, that is, the active idler wheel 57 and the active shaft 56 move along the active groove 380 close to the driven wheel 53, so that the active idler wheel 57 and the driven wheel 53 are in contact, and then the resultant force is F 合 Under the action of gearing, the movable groove 380 plays a guiding and limiting role.

[0044] like Figure 4 As shown, the driving wheel 52 rotates counterclockwise, driving the movable idler wheel 57 to rotate clockwise in the second direction and driving the movable idler wheel 57 to move away from the driven wheel 53. The forces acting on the movable idler wheel 57 from the driving wheel 52 and the driven wheel 53 are F1 and F2 respectively, wherein the combined force of F1 and F2 is F 合 , F 合 The movable idler wheel 57 and the movable shaft 56 move in the direction away from the driven wheel 53 along the movable groove 380, so that the movable idler wheel 57 is separated from the driven wheel 53 and the meshing is released.

[0045] It should be noted that the first direction can be clockwise or counterclockwise, and the corresponding second direction is the opposite counterclockwise or clockwise. The movable idler wheel 57 is arranged on the movable shaft 56, and can be rotatably connected or fixedly connected, that is, the movable idler wheel 57 is rotatably arranged on the movable shaft 56, moves with the movable shaft 56 and the movable idler wheel 57 rotates around the movable shaft 56, or the movable idler wheel 57 is fixedly arranged on the movable shaft 56, the movable idler wheel 57 moves and rotates synchronously with the movable shaft 56, and the movable idler wheel 57 and the movable shaft 56 are integrally formed or plug-connected, all of which belong to the protection scope of the present utility model.

[0046] The specific application of the one-way transmission clutch mechanism of the present application is further explained below in conjunction with specific embodiments.

[0047] Embodiment 1

[0048] like Figure 1-2 As shown, in this embodiment, the one-way transmission clutch mechanism is used in the electric operating device of the circuit breaker. The lower part of the figure is the circuit breaker, which is used to connect to the circuit to realize the on and off control, as well as the protection functions such as overload, short circuit and / or leakage. The handle of the circuit breaker is used for manual operation. The circuit breaker is closed and opened by the reciprocating swing of the handle to control the on and off of the circuit. An electric operating device is installed above the circuit breaker to realize remote control of the electric operating device, drive the handle of the circuit breaker, and realize automatic control of closing and opening.

[0049] The electric operating device of this embodiment includes an electric drive mechanism, a one-way transmission clutch mechanism, a transmission mechanism 2, and a drive member 3. The electric drive mechanism is connected to a driving wheel 52 of the one-way transmission clutch mechanism, and a driven wheel 53 of the one-way transmission clutch mechanism is connected to the transmission mechanism 2. The drive member 3 is arranged to move linearly and is provided with a driving part for driving the handle 6. The driven wheel 53 drives the drive member 3 to slide linearly reciprocatingly through the transmission mechanism 2.

[0050] like Figure 7-8 As shown, the driving member 3 in this embodiment is arranged to slide linearly and is provided with a driving part for driving the handle 6 and a slide groove 30 cooperating with the transmission mechanism 2. The transmission mechanism 2 includes a crank member, which is rotatably arranged and is provided with a rotating shaft 21 and a push rod 22 rotating around the rotating shaft 21. The push rod 22 is eccentrically arranged with the rotating shaft 21 of the crank member, and the push rod 22 is inserted into the slide groove 30 of the driving member 3. The electric drive mechanism is connected to the driving wheel 52 of the one-way transmission clutch mechanism, and the driving wheel 52 rotates clockwise and counterclockwise. The driven wheel 53 of the one-way transmission clutch mechanism is directly or indirectly connected to the crank member of the transmission mechanism 2, driving the crank member to rotate unidirectionally. The unidirectional rotation of the crank member drives the push rod 22 to rotate around the rotating shaft 21. The push rod 22 moves along the slide groove 30 and pushes the driving member 3 to slide through the slide groove 30, driving the driving member 3 to slide linearly along the operating direction of the handle 6, so that the switch electrical appliance is opened and closed.

[0051] The electric drive mechanism described in this embodiment includes an electromagnetic mechanism and a drive rod 51. The electromagnetic mechanism includes a moving iron core 11 and a single set of electromagnetic coils 12. When the electromagnetic coils 12 are energized, the electromagnetic force drives the moving iron core 11 to move. The moving iron core 11 is connected to the drive rod 51, and the drive rod 51 is connected to the drive wheel 52 of the one-way transmission clutch mechanism. The driven wheel 53 of the one-way transmission clutch mechanism is connected to the crank member. When the moving iron core 11 is attracted and reset by the electromagnetic coil 12, it drives the drive rod 51 to swing back and forth, so that the drive rod 51 drives the drive wheel 52 of the one-way transmission clutch mechanism to rotate alternately clockwise and counterclockwise, but the driven wheel 53 only rotates unidirectionally clockwise or counterclockwise, driving the crank member to rotate unidirectionally, and the crank member drives the handle 6 to move back and forth linearly through the push rod.

[0052] Specifically, when the moving iron core 11 is driven and attracted by the electromagnetic coil 12, it drives the driving wheel 52 of the one-way transmission clutch mechanism to rotate, and drives the crank member to rotate through the driven wheel 53 of the one-way transmission clutch mechanism. The side wall of the crank member's rotating shaft 21 is provided with teeth 210 that mesh with the driven wheel 53. When the crank member rotates, it drives the push rod 22 to rotate around the rotating shaft 21. The push rod 22 moves along the slide groove 30 and pushes the slide groove 30, driving the driving member 3 to move along the closing direction of the handle 6 to close the switch electrical appliance; when the moving iron core 11 is reset, the moving iron core 11 resets and drives the driving wheel 52 of the one-way transmission clutch mechanism to rotate in the opposite direction, but the driven wheel 53 does not rotate. At this time, the one-way transmission clutch mechanism is idling, does not drive the crank member to rotate, and the driving member 3 does not move. When the moving iron core 11 is driven by the electromagnetic coil 12 to be attracted again, the one-way transmission clutch mechanism drives the crank member to rotate, and when the crank member rotates, the push rod 22 is driven to rotate around the rotating shaft 21, and the push rod 22 moves along the slide groove 30 and pushes the driving member 3, driving the driving member 3 to move along the opening direction of the handle 6, so that the switch electrical appliance is opened; when the moving iron core 11 is reset, the moving iron core 11 resets and drives the driving wheel 52 of the one-way transmission clutch mechanism to rotate in the opposite direction, but the driven wheel 53 does not rotate. At this time, the one-way transmission clutch mechanism is idle, does not drive the crank member to rotate, and the driving member 3 does not move. In this way, the attraction action of the moving iron core 11 of the electromagnetic mechanism alternately realizes the closing and opening of the circuit breaker, and the one-way transmission clutch mechanism and the transmission mechanism 2 are not used to drive the driving member 3 to move during the reset action. The electric operating device of this embodiment only needs a single set of electromagnetic coils to control the driving member 3 to move between the closing position and the opening position, and does not need two sets of electromagnetic coils, which reduces the volume of the electric operating device and has the characteristics of low cost.

[0053] like Fig. 9 Another embodiment of the crank member is shown. The working principle of the crank member in this embodiment is the same as that of the above embodiment. The crank member is provided with a rotating shaft 21 and a crank plate 23 connected to the rotating shaft 21. A push rod 22 is arranged on the crank plate 23. The rotating shaft 21 is also the rotating shaft of the driven wheel 53. The driven wheel 53 is integrally arranged with the rotating shaft 21, or the driven wheel 53 is sleeved on the rotating shaft 21 to directly drive the rotating shaft 21 to rotate. The push rod 22 is eccentrically arranged with the rotating shaft 21 and is connected through the crank plate 23. A roller is arranged on the push rod 22, and the roller is inserted into the slide groove 30 of the driving member 3. When the driven wheel 53 rotates, it drives the rotating shaft 21 to rotate. When the rotating shaft 21 rotates, the push rod 22 is driven to rotate around the rotating shaft 21 through the crank plate 23. The push rod 22 moves along the slide groove 30 and pushes the driving member 3 to slide linearly along the operating direction of the handle 6 through the slide groove 30. The push rod 22 pushes the driving member 3 to move through the roller, so that the driving member 3 drives the handle 6 to move. It is understandable that the crank plate 23 can also be set integrally with the rotating shaft 21, that is, it can be understood that the driven wheel 53 also serves as a crank member, and the roller may not be set, and the push rod 22 can directly push the driving member 3, all of which belong to the protection scope of the present utility model.

[0054] In this embodiment, the electric operating device is used to drive the circuit breaker to perform opening and closing operations. The electromagnetic coil 12 drives the crank member to rotate in one direction through the driving rod 51 and the one-way transmission clutch mechanism, that is, it can only rotate clockwise or counterclockwise. When the crank member rotates, the trajectory of the circular motion of the eccentrically arranged push rod 22 includes two semicircular trajectories, and the two semicircular trajectories are relatively arranged on both sides of the operating direction of the handle 6. When the push rod 22 moves along one of the semicircular trajectories, it drives the driving member 3 to move to the opening position. When the push rod 22 rotates along the other semicircular trajectory, it drives the driving member 3 to move to the closing position. The opening position and the closing position are relatively arranged at both ends of the operating direction of the handle 6. The slide groove 30 is long and strip-shaped, and the linear movement direction of the driving member 3 is parallel to the operating direction of the handle 6. The length direction of the slide groove 30 is perpendicular to the operating direction of the handle 6.

[0055] See also Figure 7 As shown, in this embodiment, the driving member 3 is linearly slidably arranged on the first bracket 4, and the first bracket 4 is used to limit the driving member 3 to move only along the operating direction of the handle 6. Usually, the first bracket 4 is installed on the circuit breaker, and the driving member 3 is arranged corresponding to the handle 6 of the circuit breaker. The electromagnetic mechanism, the electric drive mechanism, and the transmission mechanism 2 are installed on the first bracket 4. The transmission mechanism 2 and the one-way transmission clutch mechanism are arranged corresponding to the driving member 3. The crank member is located above the driving member 3, the electromagnetic mechanism is located on the left side of the driving member 3, and a controller 71 for powering the electromagnetic coil 12 is provided on the right side of the driving member 3.

[0056] The electric operating device of the utility model only needs to be provided with a single set of electromagnetic coils 12. The one-way transmission clutch mechanism will not drive the crank member to rotate when the moving iron core 11 is reset. Only when the electromagnetic coil 12 is energized to drive the moving iron core 11, the one-way transmission clutch mechanism will drive the crank member to rotate. When the electromagnetic coil 12 is de-energized and the moving iron core 11 is reset under the drive of the reset spring, the one-way transmission clutch mechanism will not drive the crank member to rotate, thereby realizing the one-way rotation of the crank member. When the electromagnetic mechanism is energized, the linear motion of the moving iron core 11 is first converted into the circular motion of the crank member through the driving rod 51, and then the circular motion of the crank member is converted into the linear motion along the operating direction of the handle 6 through the driving member 3, thereby realizing the driving member 3 driving the handle 6 to perform the opening and closing operations. Since only a single set of electromagnetic coils 12 is required to operate to control the driving member 3 to move alternately between the closing position and the opening position, there is no need for two sets of electromagnetic coils 12 to control the driving member 3 to move to the closing position and the opening position respectively, thereby reducing the number of electromagnetic coils 12 and having the characteristics of simple structure and low cost.

[0057] like Figure 3As shown in the preferred embodiment of the one-way transmission clutch mechanism, the angle α between the line connecting the rotation center of the driven wheel 53 and the rotation center of the movable idler wheel 57 and the moving direction of the movable shaft 56 is an oblique angle, that is, the angle α between the line connecting the rotation center of the driven wheel 53 and the rotation center of the movable idler wheel 57 and the length direction of the movable groove 380 is an oblique angle. By setting the angle α to an oblique angle, the F of the movable idler wheel 57 can be reduced. 合 More reasonably, the movable idler wheel 57 is reliably meshed with the driven wheel 53. Preferably, the extension line of the moving direction of the movable shaft 56 is located between the rotation center of the driven wheel 53 and the rotation center of the driving wheel 52.

[0058] Further, if Figure 1-2 As shown, the one-way transmission clutch mechanism is provided with a second support plate 382 opposite to the guide plate 38, and the second support plate 382 is connected to the guide plate 38 through a support column 383. The second support plate 382 is provided with a support groove 384 corresponding to the movable groove 380, and the movable idler wheel 57 is arranged between the second support plate 382 and the guide plate 38, and the two ends of the movable shaft 56 are respectively inserted into the movable groove 380 and the support groove 384. The function of the support groove 384 is the same as that of the movable groove 380, which is used to limit the movable shaft 56 so that the movable shaft 56 moves in the direction of approaching and moving away from the driven wheel 53. The support groove 384 and the movable groove 380 can cooperate to support the two ends of the movable shaft 56, avoiding the problem of unbalanced force when only one end of the movable shaft 56 is inserted into the movable groove 380, avoiding the problem of skewing of the movable shaft 56, and preventing the movable idler wheel 57 from getting stuck.

[0059] Furthermore, the one-way transmission clutch mechanism is provided with an idler spring 58, which applies a force to the movable idler 57 to approach the driven wheel 53. In this embodiment, the idler spring 58 is connected between the movable shaft 56 and the second support plate 382. The idler spring 58 is used to drive the movable idler 57 to move close to the driven wheel 53 and keep the movable idler 57 in contact with the driven wheel 53. When the movable shaft 56 drives the movable idler 57 away from the driven wheel 53, the movable idler 57 stretches the idler spring 58. Of course, the idler spring 58 may not be provided, or the idler spring 58 may be provided in other ways such as a torsion spring, which all fall within the protection scope of the present utility model.

[0060] Further, the speed ratio of the driving wheel 52 to the driven wheel 53 is greater than 1. Preferably, the speed ratio of the driving wheel 52 to the driven wheel 53 is 6.1-6.5. By reasonably setting the speed ratio, for example, the speed ratio is 6.5, each time the electromagnetic coil 12 attracts the moving iron core 11, the movable idler wheel 57 rotates by an angle greater than or equal to 180 degrees, ensuring that each movement of the moving iron core 11 can drive the driving member 3 to move the complete opening stroke or closing stroke, so that the opening action and the closing action are performed alternately, especially each time the driving wheel 52 rotates 30 degrees, it can drive the movable idler wheel 57 to rotate 195 degrees to complete the opening stroke or the closing stroke, and some margin can be reserved while satisfying the alternation of the opening action and the closing action.

[0061] Preferably, the speed ratio between the movable idler wheel 57 and the driven wheel 53 is 1, so that when the movable idler wheel 57 is separated and then contacts the driven wheel 53, the two can be easily re-engaged.

[0062] like Figure 1-2 As shown, the driving wheel 52 is connected to the driving rod 51. When the moving iron core 11 moves linearly, it drives the driving rod 51 to rotate around the driving wheel 52, so that the driving rod 51 drives the driving wheel 52 to rotate, and the driving wheel 52 drives the crank member to rotate through the one-way transmission clutch mechanism.

[0063] like Figure 5 As shown, the driving wheel 52 is an incomplete gear, and the driving wheel 52 includes a toothed disc 521 and a swing rod 522 connected to the toothed disc 521, the toothed disc 521 is meshed with the driven wheel 53, and the end of the swing rod 522 away from the toothed disc 521 is connected to the driving rod 51 through a first shaft 523, and the driving rod 51 drives the driving wheel 52 to rotate through the first shaft 523, and the cross section of the first shaft 523 is a non-circular special-shaped structure. In this embodiment, the cross section of the first shaft 523 is a D-shaped structure, and the swing rod 522 is provided with a plurality of second spring holes 524 arranged in the radial direction. The second spring hole 524 is used to connect the second return spring 525, and the second return spring 525 is used to drive the driving wheel 52 to reset. At the same time, multiple second spring holes 524 can adjust the tension of the second return spring 525, and the second return spring 525 can be selected according to needs to connect to which second spring hole 524. The moving iron core 11 is provided with a driving shaft 13, and the driving rod is provided with a driving groove 14 for inserting the driving shaft 13. When the moving iron core 11 moves, the driving shaft 13 pushes the driving groove 14 to drive the driving rod to rotate, and the driving shaft 13 slides along the driving groove 14.

[0064] It can be understood that the driving wheel 52 can also be a complete gear, and the electric drive mechanism can also be provided with more gears. For example, a third gear is provided between the driving wheel 52 and the driven wheel 53, which is not shown in the figure. The driving wheel 52 drives the driven wheel 53 to rotate through the third gear, and the speed ratio is increased step by step through multiple gears to increase the rotation angle of the driven wheel 53, which all fall within the protection scope of the present utility model.

[0065] like Figure 1 , 6 -7, the electric operating device is also provided with a controller 71 for supplying power to the electromagnetic coil 12, and a wiring terminal 72 connected to the controller 71. Figure 7 The wiring terminal 72 includes a common terminal 74 and an opening terminal 73 and a closing terminal 75 corresponding to the opening position and the closing position of the driving member 3, respectively. When the driving member 3 moves to the opening position and the closing position, the handle 6 is driven to open and close respectively. The controller 71 is provided with a contact piece 76. The two ends of the electromagnetic coil 12 are respectively connected to the contact piece 76 and the common terminal 74. The contact piece 76 can switch between connecting to the opening terminal 73 and connecting to the closing terminal 75. When the driving member 3 moves to the opening position or the closing position, the contact piece 76 can be separated from the corresponding opening terminal 73 or the closing terminal 75, so that the corresponding opening terminal 73 or the closing terminal 75 stops supplying power to the electromagnetic coil 12, and the contact piece 76 will be connected to the other of the opening terminal 73 or the closing terminal 75, and the electromagnetic coil 12 can only be supplied with power by the other of the opening terminal 73 or the closing terminal 75 again. This embodiment does not require a PCB circuit board or other electronic methods. The electromagnetic mechanism 1 can be controlled and interlocked through a pair of contact pieces 76. Electrical interlocking is achieved through mechanical means, which can not only further reduce costs, but also does not require sensors to sense whether the switch is in place or not. The control chain is short and not prone to failure.

[0066] The driving member 3 can directly or indirectly drive the contact piece 76. In this embodiment, the driving member 3 drives the contact piece 76 via a lever. The controller 71 is provided with a lever, and the lever is provided with a toggle end for driving the contact piece 76 to switch between the opening end 73 and the closing end 75, and a driving end extending outside the controller 71 to cooperate with the driving member 3. The driving member 3 moves to the opening position and pushes the driving end at the same time, so that the toggle end of the lever drives the contact piece 76 away from the opening end 73 corresponding to the opening position and connects with the closing end 75; the driving member 3 moves to the closing position and pushes the driving end at the same time, so that the toggle end of the lever drives the contact piece 76 away from the closing end 75 corresponding to the closing position and connects with the opening end 73. For example, the driving member 3 moves to the closing position, driving the handle 6 to close the switch, and the driving member 3 pushes the lever to separate the contact piece 76 from the closing end 75 and contact the opening end 73. The contact piece 76 separates from the closing end 75, stops supplying power to the electromagnetic coil 12, and the electromagnetic coil 12 will not be supplied with power when the closing end 75 is energized, and the contact piece 76 contacts the opening end 73. At this time, the electromagnetic coil 12 will only be supplied with power when the opening end 73 is energized. The electrical interlocking is achieved by mechanical means, which can further reduce costs. Preferably, the rated voltage of the electromagnetic coil 12 is AC220V or AC400V. It is understandable that the connection mode and arrangement mode of the terminal block 72 can be adjusted, and the contact piece 76 can be controlled by the lever to select the power supply for the electromagnetic coil 12. Of course, other methods can also be used to replace the lever, such as setting a micro switch or a sensor, and controlling the switching of the contact piece 76 by the micro switch or the sensor, which all belong to the protection scope of the utility model. In addition, since the power supply to the electromagnetic coil 12 is cut off by the controller 71 when the handle 6 is in place, the follower 53 can stop rotating when it rotates 180 degrees, and will not continue to rotate even if the designed rotation angle is greater than 180 degrees.

[0067] like Figure 7 As shown, the driving member 3 is provided with two side plates 31 and a top plate 32 connected between the two side plates 31, the top plate 32 is provided with a slide groove 30, the push rod 22 of the crank member is inserted into the slide groove 30 to push the groove wall of the groove 30 to drive the driving member 3 to move, and the driving part of the driving member 3 can be arranged on the two side plates 31, respectively used to drive the handle 6 to swing in the closing direction and the opening direction. As other embodiments, the driving part of the driving member 3 can also be a driving groove, and the handle 6 is inserted into the driving groove. The driving end of the lever of the controller 71 is inserted between the two side plates 31. When the driving member 3 moves, the lever is pushed by the two side plates 31 respectively, so that the lever drives the contact piece 76 to switch between the common end 74 and the closing end 75.

[0068] Embodiment 2

[0069] like Figure 10-12As shown, the main difference between this embodiment and the first embodiment is that the electromagnetic mechanism is replaced by the motor 15, and the electric drive mechanism includes the motor 15, and the speed change mechanism 16 connected to the output end of the motor 15, and the speed change mechanism 16 is used to drive the driving wheel 52 to rotate, and the speed ratio of the driving wheel 52 to the driven wheel 53 is adjusted from the speed ratio of the driving wheel 52 to the driven wheel 53 in the first embodiment being greater than 1 to the speed ratio of the driving wheel 52 to the driven wheel 53 in the present embodiment being less than 1, because the electromagnetic mechanism can only move back and forth once, and the driven wheel 53 needs to rotate a sufficient angle each time it moves, while the motor 15 can rotate all the time, and the angle during each movement can be controlled by the motor 15. At the same time, the one-way transmission mechanism of this embodiment is used to protect the motor 15. The motor 1 drives the handle 6 to move, but the handle 6 does not affect the motor 15 and the wheel set when it moves. For example, the handle 6 is manually operated, or the handle 6 moves to the tripping position when the circuit breaker is tripped, and the active idler wheel 57 is driven by the driving wheel 52 to separate from the driven wheel 53, so as to prevent the driving wheel 52 from driving the motor 15 in the reverse direction through the speed change mechanism 16, thereby protecting the motor 15. In addition, since the output of the motor 15 is used instead in this embodiment, it is not necessary to set the controller 71 of the first embodiment to control the motor 15, for example, the micro switch is used to sense the opening and closing conditions, and then the chip is used to control the power supply to the motor. In this embodiment, since the speed ratio relationship is changed, the driving wheel 52 of the first embodiment is larger than the driven wheel 53, and the driving wheel 52 is adjusted to be larger than the driven wheel 53, but the motion relationship is consistent with the first embodiment. When the active idler wheel 57 rotates in the opposite first direction and the second direction respectively, it can approach and move away from the driven wheel 53 respectively, and the active idler wheel 57 can only drive the driven wheel 53 to rotate in one direction.

[0070] like Figure 10-13As shown, the transmission mechanism 2 of this embodiment includes a first rocker arm 25 and a second rocker arm 26. The first rocker arm 25 is pivotally mounted through a rotating end at one end, and the driving end at the other end is connected to the driving member 3, which is used to drive the driving member 3 to move linearly; the driving member 3 is provided with a driving groove as a driving part, and the driving groove is sleeved on the handle 6. One end of the second rocker arm 26 is connected to the eccentric position of the driven wheel 53, and the end of the second rocker arm 26 away from the driven wheel 53 is connected to the middle part of the first rocker arm 25. When the driven wheel 53 rotates, it drives the second rocker arm 26 to pull the first rocker arm 25 to rotate around the rotating end. The driving end of the first rocker arm 25 swings back and forth to drive the driving member 3 to move back and forth along the operating direction of the handle 6, and pushes the handle 6 to open and close the switch. Preferably, a roller is provided on the driving part of the driving member 3, and the handle 6 is driven by the roller, which protects the handle 6 and makes the transmission smoother. In this embodiment, the second rocker arm 26 is directly connected to the driven wheel 53. As other embodiments, the driven wheel 53 can also drive other gears to rotate, and the eccentric position of the gear is also connected to the second rocker arm 26. The transmission mechanism 2 of this embodiment has a multi-link structure formed by the first rocker arm 25 and the second rocker arm 26, which can make the contact angle between the driving member 3 and the circuit breaker handle 6 parallel contact, reduce the wear of the driving member 3 on the circuit breaker handle 6 and make the force uniform.

[0071] The installation method of the driving member 3 can be similar to that of the first embodiment. The driving member 3 can be slidably arranged on the first bracket 4, the first bracket 4 defines the moving direction of the driving member 3, and the first rocker arm 25 can be pivotally mounted on the first bracket 4. In addition, the driving member 3 can also be directly mounted on the first rocker arm 25. For example, preferably, the transmission mechanism 2 is provided with two first rocker arms 25, the two first rocker arms 25 are arranged in parallel, the rotating ends of the two first rocker arms 25 are both pivotally mounted, and the driving ends are both connected to the driving member 3. The second rocker arm 26 is rotatably connected to one of the first rocker arms 25, and is used to drive the driving member 3 to move. The other first rocker arm 25 plays a role of limiting, so that the driving member 3 will not rotate and deviate.

[0072] like Fig.12 As shown, the speed change mechanism 16 includes a first speed change gear 161, a second speed change gear 162 and a third speed change gear 163 that are meshed in sequence, the first speed change gear 161 is connected to the motor 15, the driving wheel 52 is provided with an integrally formed fourth gear 164, the fourth gear 164 is meshed with the third speed change gear 163, and the motor 15 drives the fourth gear 164 to rotate through the first speed change gear 161, the second speed change gear 162 and the third speed change gear 163 in sequence. It can be understood that the speed change mechanism 16 is a prior art, and the number of its gears can be adjusted arbitrarily, and no specific limitation is made here.

[0073] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate directions or positional relationships based on directions or positional relationships shown in the drawings, or directions or positional relationships that are usually placed when in use, and are only for the convenience of description, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish descriptions, and cannot be understood as indicating relative importance.

[0074] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A one-way transmission clutch mechanism, characterized in that: The invention comprises a driving wheel (52), a guide plate (38), a movable shaft (56), a movable idler wheel (57) and a driven wheel (53), wherein the driving wheel (52) is used to cooperate with a driving mechanism to receive a driving force, the driving wheel (52) and the driven wheel (53) are rotatably arranged respectively, the movable idler wheel (57) is connected to the movable shaft (56), the guide plate (38) is provided with a movable groove (380), the movable shaft (56) is inserted into the movable groove (380), the movable idler wheel (57) is rotatably arranged and can move along the movable groove (380) with the movable shaft (56) in a direction close to the driven wheel (53) and away from the driven wheel (53), The driving wheel (52) is connected to the movable idler wheel (57), and drives the movable idler wheel (57) to rotate in opposite first and second directions respectively. When the driving wheel (52) drives the movable idler wheel (57) to rotate in the first direction, it drives the movable idler wheel (57) and the movable shaft (56) to move close to the driven wheel (53), so that the movable idler wheel (57) meshes with the driven wheel (53), so that the movable idler wheel (57) drives the driven wheel (53) to rotate. When the driving wheel (52) drives the movable idler wheel (57) to rotate in the second direction, it drives the movable shaft (56) to move away from the driven wheel (53), so that the movable idler wheel (57) is separated from the driven wheel (53).

2. The one-way transmission clutch mechanism according to claim 1, characterized in that: The movable idler wheel (57) is rotatably or fixedly arranged on the movable shaft (56).

3. The one-way transmission clutch mechanism according to claim 1, characterized in that: The invention also comprises an idler wheel spring (58), wherein the idler wheel spring (58) applies a force to the movable idler wheel (57) to move the movable idler wheel (57) closer to the driven wheel (53).

4. The one-way transmission clutch mechanism according to claim 1, characterized in that: A second support plate (382) is provided opposite to the guide plate (38), the second support plate (382) is connected to the guide plate (38) via a support column (383), a support groove (384) corresponding to the movable groove (380) is provided on the second support plate (382), the movable idler wheel (57) is arranged between the second support plate (382) and the guide plate (38), and the two ends of the movable shaft (56) are respectively inserted into the movable groove (380) and the support groove (384).

5. The one-way transmission clutch mechanism according to claim 1, characterized in that: The angle α between the line connecting the rotation center of the driven wheel (53) and the rotation center of the movable idler wheel (57) and the moving direction of the movable shaft (56) is an oblique angle.

6. The one-way transmission clutch mechanism according to claim 1, characterized in that: The extension line of the moving direction of the movable shaft (56) is located between the rotation center of the driven wheel (53) and the rotation center of the driving wheel (52).

7. The one-way transmission clutch mechanism according to claim 1, characterized in that: The speed ratio between the movable idler wheel (57) and the driven wheel (53) is 1.

8. An electric operating device, characterized in that: The invention comprises an electric drive mechanism, a one-way transmission clutch mechanism as claimed in any one of claims 1 to 7, a transmission mechanism (2) and a driving member (3), wherein the electric drive mechanism is connected to a driving wheel (52) of the one-way transmission clutch mechanism, a driven wheel (53) of the one-way transmission clutch mechanism is connected to the transmission mechanism (2), the driving member (3) is arranged to move linearly and is provided with a driving part for driving a handle (6), and the driven wheel (53) drives the driving member (3) to move linearly and reciprocatingly through the transmission mechanism (2).

9. The electric operating device according to claim 8, characterized in that: The electric drive mechanism comprises an electromagnetic mechanism and a drive rod (51), the electromagnetic mechanism comprises a moving iron core (11) and a single set of electromagnetic coils (12), the drive rod (51) is connected to a drive wheel (52), and when the moving iron core (11) moves linearly, the drive wheel (52) is driven to rotate through the drive rod (51).

10. The electric operating device according to claim 9, characterized in that: The driving wheel (52) is an incomplete gear, comprising a toothed disc (521) and a swinging rod (522) connected to the toothed disc (521), the toothed disc (521) meshing with a driven wheel (53), and one end of the swinging rod (522) away from the toothed disc (521) is connected to the driving rod (51).

11. The electric operating device according to claim 8, characterized in that: The electric drive mechanism comprises an electric motor (15) and a speed change mechanism (16) connected to the output end of the electric motor (15), wherein the speed change mechanism (16) is used to drive the driving wheel (52) to rotate.

12. The electric operating device according to claim 11, characterized in that: The driving wheel (52) is provided with an integrally formed fourth gear (164), the fourth gear (164) is meshed with the speed change mechanism (16), and the speed change mechanism (16) drives the driving wheel (52) to rotate via the fourth gear (164).

13. The electric operating device according to claim 12, characterized in that: The speed change mechanism (16) comprises a first speed change gear (161), a second speed change gear (162) and a third speed change gear (163) which are meshed in sequence; the first speed change gear (161) is connected to the motor (15); the driving wheel (52) is provided with an integrally formed fourth gear (164); the fourth gear (164) is meshed with the third speed change gear (163); the motor (15) drives the fourth gear (164) to rotate through the first speed change gear (161), the second speed change gear (162) and the third speed change gear (163) in sequence.

14. The electric operating device according to claim 8, characterized in that: The transmission mechanism (2) comprises a crank member, which is rotatably arranged and provided with a rotating shaft (21) and a push rod (22) rotating around the rotating shaft (21); the driving member (3) is provided with a slide groove (30), and the push rod (22) is inserted into the slide groove (30); the driven wheel (53) of the one-way transmission clutch mechanism is directly or indirectly connected to the crank member of the transmission mechanism (2), driving the crank member to rotate in one direction; the one-way rotation of the crank member drives the push rod (22) to rotate around the rotating shaft (21); the push rod (22) moves along the slide groove (30) and pushes the driving member (3) to slide linearly along the operating direction of the handle (6) through the slide groove (30).

15. The electric operating device according to claim 8, characterized in that: The transmission mechanism (2) comprises a push rod (22), a driven wheel (53) and a rotating shaft (21) which are arranged integrally, or the driven wheel (53) is sleeved on the rotating shaft (21) to directly drive the rotating shaft (21) to rotate, the push rod (22) and the rotating shaft (21) are eccentrically arranged and connected via a crank plate (23), the driving member (3) is provided with a slide groove (30), the push rod (22) is inserted into the slide groove (30), the driven wheel (53) rotates unidirectionally to drive the push rod (22) to rotate around the rotating shaft (21), the push rod (22) moves along the slide groove (30) and pushes the driving member (3) to slide linearly along the operating direction of the handle (6) through the slide groove (30).

16. The electric operating device according to claim 14 or 15, characterized in that: The slide groove (30) is in the shape of an elongated strip, and the length direction of the slide groove (30) is perpendicular to the operating direction of the handle (6).

17. The electric operating device according to claim 8, characterized in that: The transmission mechanism (2) comprises a first rocker arm (25) and a second rocker arm (26); the first rocker arm (25) is pivotally mounted via a rotating end at one end, and a driving end at the other end is connected to a driving member (3); one end of the second rocker arm (26) is connected to an eccentric position of a driven wheel (53); an end of the second rocker arm (26) away from the driven wheel (53) is connected to a middle portion of the first rocker arm (25); when the driven wheel (53) rotates, the second rocker arm (26) is driven to pull the first rocker arm (25) to rotate around the rotating end; the driving end of the first rocker arm (25) swings back and forth, driving the driving member (3) to move back and forth along the operating direction of the handle (6).

18. The electric operating device according to claim 17, characterized in that: The transmission mechanism (2) is provided with two first rocker arms (25), the two first rocker arms (25) are arranged in parallel, and the second rocker arm (26) is rotationally connected to one of the first rocker arms (25).

19. The electric operating device according to claim 17, characterized in that: The driving member (3) is provided with a driving groove as a driving portion, the driving groove is sleeved on the handle (6), and a roller is provided on the driving portion of the driving member (3).

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