A circuit breaker switch energy storage device and circuit breaker

Abstract

The present invention relates to the technical field of circuit breakers, and in particular to a circuit breaker switch energy storage device and a circuit breaker, wherein the circuit breaker switch energy storage device comprises a mounting housing, a driving member, a reduction gear set, an energy storage gear and a clutch, wherein the mounting housing has a mounting cavity; the driving member is arranged in the mounting housing; the reduction gear set is arranged in the mounting cavity and is transmission-connected to the output end of the driving member; the clutch is transmission-connected to the reduction gear set, and the energy storage gear is transmission-connected to the clutch, and the clutch is configured to: allow the power output by the reduction gear set to be transmitted to the energy storage gear, and prevent the power output by the energy storage gear from being transmitted to the reduction gear set, and the energy storage gear is used to drive the main shaft of the circuit breaker switch, and then drive the elastic energy storage element to store energy. During the energy release process of the circuit breaker switch energy storage device of the present invention, the energy storage gear rotates and will not transmit power to the reduction gear set, so that the opening or closing process is smoother.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breakers, and in particular to a circuit breaker switch energy storage device and a circuit breaker. Background Art

[0002] In an electrically controlled high-voltage circuit breaker, it is necessary to store energy in the switch so that the switch contacts can immediately cut off the circuit when a line fault is repaired or overloaded, to prevent the contacts from arcing and burning the contacts, resulting in the switch being scrapped. In the prior art, the switch energy storage device drives the large ring gear after the motor is decelerated, and the large ring gear cooperates with the ratchet and pawl set on its inner ring to transmit power to the energy storage element connected to the circuit breaker to realize switch energy storage. When the switch releases energy, the energy storage element drives the ratchet in the opposite direction to realize one-way transmission, and the transmission is not transmitted to the large ring gear. However, the structure in the prior art will cause the pawl to abut against the ratchet in the opposite direction if the energy storage element reverses too quickly when releasing energy, resulting in energy loss, affecting the energy release effect, and further affecting the opening and closing of the circuit breaker switch. Summary of the invention

[0003] The object of the present invention is to provide a circuit breaker switch energy storage device and a circuit breaker, wherein the switch opening and closing energy release process is smooth and the energy loss is small.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] In one aspect, the present invention provides a circuit breaker switch energy storage device, comprising:

[0006] A mounting housing having a mounting cavity;

[0007] A driving member, which is disposed through the mounting housing;

[0008] A reduction gear set, disposed in the mounting cavity and drivingly connected to the output end of the driving member;

[0009] An energy storage gear and a clutch, wherein the clutch is transmission-connected to the reduction gear set, the energy storage gear is transmission-connected to the clutch, and the clutch is configured to: allow the power output by the reduction gear set to be transmitted to the energy storage gear, and prevent the power output by the energy storage gear from being transmitted to the reduction gear set, and the energy storage gear is used to drive the main shaft of the circuit breaker switch, thereby driving the elastic energy storage element.

[0010] Preferably, the clutch includes a first transmission shaft, a first transmission gear, a second transmission gear and a rolling body. The first transmission shaft is arranged in the installation cavity, the first transmission gear is fixedly sleeved on the first transmission shaft, and the second transmission gear is rotatably sleeved on the first transmission shaft. A wedge-shaped hole is provided on the first transmission shaft, and a groove is provided on the wall of the shaft hole of the second transmission gear. The rolling body can be completely located in the wedge-shaped hole, and can also roll outward from the wedge-shaped hole to be partially located in the wedge-shaped hole and partially located in the groove and abutting against the groove wall of the groove.

[0011] Preferably, a damping member is further included, wherein the first transmission shaft includes a core shaft and a sleeve sleeved on the core shaft, the second transmission gear is rotatably sleeved on the sleeve, a through hole is opened on the sleeve, the rolling body can pass through the through hole to abut against the groove wall of the groove, one end of the damping member is fixedly arranged on the mounting shell, and the other end abuts against the outer surface of the sleeve, and the damping member generates damping on the sleeve when the sleeve rotates.

[0012] Preferably, the damping member is a clip spring, a fixing pin is provided on the mounting shell, one end of the clip spring is sleeved on the fixing pin, and the other end is clamped on the outer surface of the sleeve.

[0013] Preferably, a manual switch is further included, a first axial hole is opened on the energy storage gear, and the manual switch is inserted into the first axial hole.

[0014] Preferably, the cross section of the manual switch is polygonal.

[0015] Preferably, it also includes an energy storage shaft, one end of which is drivingly connected to the energy storage gear, and the other end of which is connected to the main shaft of the switch.

[0016] Preferably, the installation shell comprises an upper shell cover and a lower shell cover, the upper shell cover is connected to the lower shell cover to form the installation cavity, and the driving member is disposed through the lower shell cover.

[0017] Preferably, a third transmission gear is provided at the output end of the driving member, and the third transmission gear is transmission-connected to the reduction gear set.

[0018] On the other hand, the present invention further provides a circuit breaker on which the above-mentioned circuit breaker switch energy storage device is arranged.

[0019] Beneficial effects of the invention: The present invention provides a circuit breaker switch energy storage device. Compared with the circuit breaker switch energy storage device in the prior art that uses a ratchet structure to achieve one-way transmission, the circuit breaker switch energy storage device of the present invention, by connecting the output end of the driving member to the reduction gear group, the reduction gear group can transmit power to the energy storage gear through the clutch, and the energy storage gear drives the main shaft of the switch to drive the elastic energy storage element to store energy. During the energy release process, the energy storage gear rotates, driving the clutch to idle, and no power is transmitted to the reduction gear group, so that the energy release drive switch opening or closing process is smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a disassembled diagram of the upper cover of the integral structural housing of a circuit breaker switch energy storage device of the present invention;

[0021] Figure 2 It is a cross-sectional view of a clutch structure portion of a circuit breaker switch energy storage device of the present invention;

[0022] Figure 3 It is an overall cross-sectional view of a clutch structure of a circuit breaker switch energy storage device of the present invention;

[0023] Figure 4 The present invention discloses a structural diagram of a manual switch and an energy storage gear of a circuit breaker switch energy storage device.

[0024] In the figure:

[0025] 1. Install the housing; 11. Upper housing cover; 12. Lower housing cover;

[0026] 2. Driving member; 21. Third transmission gear;

[0027] 3. Reduction gear set;

[0028] 4. Energy storage gear;

[0029] 5. Clutch; 51. First transmission shaft; 52. First transmission gear; 53. Second transmission gear; 531. Groove; 54. Rolling element; 511. Mandrel; 5111. Wedge-shaped hole; 512. Bushing; 5121. Through hole; 55. Damping element;

[0030] 6. Fixed pin;

[0031] 7. Manual switch. DETAILED DESCRIPTION

[0032] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and implementation methods. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings, rather than all of them.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] like Figure 1-Figure 4 As shown, the present invention provides a circuit breaker switch energy storage device, including a mounting shell 1, a driving member 2, a reduction gear set 3, an energy storage gear 4 and a clutch 5, wherein the mounting shell 1 has a mounting cavity; the driving member 2 is penetrated through the mounting shell 1; the reduction gear set 3 is arranged in the mounting cavity and is transmission-connected to the output end of the driving member 2; the energy storage gear 4 and the clutch 5, wherein the clutch 5 is transmission-connected to the reduction gear set 3, and the energy storage gear 4 is transmission-connected to the clutch 5, and the clutch 5 is configured to: allow the power output by the reduction gear set 3 to be transmitted to the energy storage gear 4, and prevent the power output by the energy storage gear 4 from being transmitted to the reduction gear set 3, and the energy storage gear 4 is used to drive the main shaft of the circuit breaker switch to drive the elastic energy storage element to store energy.

[0036] Compared with the circuit breaker switch energy storage device in the prior art that uses a ratchet structure to achieve one-way transmission, the circuit breaker switch energy storage device of the present invention, by connecting the output end of the driving member 2 to the reduction gear group 3, the reduction gear group 3 can transmit power to the energy storage gear 4 through the clutch 5, and the energy storage gear 4 drives the elastic energy storage element of the switch to store energy. During the energy release process, the energy storage gear 4 rotates, driving the clutch 5 to idle, and will not transmit power to the reduction gear group 3, so that the energy release drive switch opening or closing process is smoother. Furthermore, in this embodiment, the driving member 2 is a motor, and in other embodiments, the driving member 2 can also use a hydraulic motor.

[0037] Specifically, the clutch 5 includes a first transmission shaft 51, a first transmission gear 52, a second transmission gear 53 and a rolling body 54. The first transmission gear 52 is fixedly sleeved on the first transmission shaft 51, and the second transmission gear 53 is rotatably sleeved on the first transmission shaft 51. A wedge-shaped hole 5111 is provided on the first transmission shaft 51, and a groove 531 is provided on the wall of the shaft hole of the second transmission gear 53. The rolling body 54 can be completely located in the wedge-shaped hole 5111, and can also roll outward from the wedge-shaped hole 5111 to partially located in the wedge-shaped hole 5111, and partially located in the groove 531 and abutting against the groove wall of the groove 531. The specific transmission method is: when the energy storage element is stored, the driving member 2 rotates and is decelerated through the reduction gear group 3, and the reduction gear group 3 transmits power to The first transmission gear 52 drives the first transmission shaft 51 to rotate. At this time, the rolling body 54 in the wedge-shaped hole 5111 rolls outward from the wedge-shaped hole 5111 to abut against the groove wall of the groove 531. At this time, the rolling body 54 is partially located in the wedge-shaped hole 5111 and partially located in the groove 531, and the power is transmitted from the first transmission shaft 51 to the second transmission gear 53. The second transmission gear 53 drives the energy storage gear 4 and then drives the main shaft of the switch to store energy for the energy storage element; when the energy storage element releases energy, it drives the energy storage gear 4 to rotate in the opposite direction, and the energy storage gear 4 drives the second transmission gear 53 to rotate. The rolling body 54 rolls into the wedge-shaped hole 5111, so that the second transmission gear 53 idles on the first transmission shaft 51, and the energy storage element releases energy without obstruction.

[0038] Specifically, it also includes a damping member 55. The first transmission shaft 51 includes a core shaft 511 and a sleeve 512 sleeved on the core shaft 511. The sleeve 512 is provided with a through hole 5121. The second transmission gear 53 is rotatably sleeved on the sleeve 512. The rolling body 54 can pass through the through hole 5121 to abut against the groove wall of the groove 531. One end of the damping member 55 is fixedly arranged on the mounting shell 1, and the other end abuts against the outer surface of the sleeve 512. When the sleeve 512 rotates, the damping member generates damping on the sleeve to prevent the core shaft 511 from rotating too fast when the sleeve 512 rotates together with the core shaft 511 and the rolling body 54 does not roll out of the wedge-shaped hole 5111 and rotates in the shaft hole of the second transmission gear 53.

[0039] Furthermore, in this embodiment, the damping member 55 is a clamping spring, and a fixing pin 6 is provided on the mounting shell 1. One end of the clamping spring is fixedly sleeved on the fixing pin 6, and the other end is clamped on the outer surface of the sleeve 512, which effectively prevents the sleeve 512 from rotating when the core shaft 511 starts to rotate too fast.

[0040] Specifically, it also includes a manual switch 7. A first axial hole is opened on the energy storage gear 4. The manual switch 7 is inserted into the first axial hole. When the motor fails or is damaged, the manual switch 7 can be rotated to drive the energy storage gear 4 to store energy in the energy storage element.

[0041] Furthermore, the cross section of the manual switch 7 is polygonal. In the present embodiment, the operating end of the manual switch 7 is a hexagonal prism, which is convenient for twisting operation using a wrench.

[0042] Specifically, it also includes an energy storage shaft, one end of which is transmission-connected to the energy storage gear 4, and the other end is connected to the main shaft of the switch. The main shaft of the switch drives the elastic energy storage element. The energy storage element can be set as a coil spring, and the coil spring is sleeved on the main shaft of the switch.

[0043] Specifically, the installation shell 1 includes a shell upper cover 11 and a shell lower cover 12. The shell upper cover 11 is connected to the shell lower cover 12 to form an installation cavity. The driving member 2 is penetrated through the shell lower cover 12 to effectively prevent external moisture and dust from entering the installation cavity and affecting the service life of the circuit breaker switch energy storage device.

[0044] Specifically, the output end of the driving member 2 is provided with a third transmission gear 21, and the third transmission gear 21 is transmission-connected to the reduction gear set 3. In this embodiment, the reduction gear set 3 includes three reduction gears. In other embodiments, the number of reduction gears can also be specifically set according to the specifications of the motor, and no excessive restrictions are made here. Furthermore, the third transmission gear 21 can be transmission-connected to the reduction gear set 3 by direct meshing, and can also be connected to the reduction gear set 3 by belt transmission.

[0045] This embodiment also provides a circuit breaker, on which the above-mentioned circuit breaker switch energy storage device is arranged.

[0046] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A circuit breaker switch energy storage device, characterized in that: include: An installation housing (1) having an installation cavity; A driving member (2) is disposed through the mounting housing (1); A reduction gear set (3), arranged in the installation cavity and drivingly connected to the output end of the driving member (2); An energy storage gear (4) and a clutch (5), wherein the clutch (5) is transmission-connected to the reduction gear set (3), the energy storage gear (4) is transmission-connected to the clutch (5), and the clutch (5) is configured to: allow the power output by the reduction gear set (3) to be transmitted to the energy storage gear (4), and prevent the power output by the energy storage gear (4) from being transmitted to the reduction gear set (3), and the energy storage gear (4) is used to drive the main shaft of the circuit breaker switch, thereby driving the elastic energy storage element; The clutch (5) comprises a first transmission shaft (51), a first transmission gear (52), a second transmission gear (53) and a rolling body (54); the first transmission shaft (51) is arranged in the installation cavity; the first transmission gear (52) is fixedly sleeved on the first transmission shaft (51); the second transmission gear (53) is rotatably sleeved on the first transmission shaft (51); a wedge-shaped hole (5111) is provided on the first transmission shaft (51); a groove (531) is provided on the wall of the shaft hole of the second transmission gear (53); the rolling body (54) can be completely located in the wedge-shaped hole (5111), or can roll outward from the wedge-shaped hole (5111) to be partially located in the wedge-shaped hole (5111), or partially located in the groove (531) and abutting against the groove wall of the groove (531); The circuit breaker switch energy storage device further comprises: a damping member (55); the first transmission shaft (51) comprises a core shaft (511) and a shaft sleeve (512) sleeved on the core shaft (511); the second transmission gear (53) is rotatably sleeved on the shaft sleeve (512); a through hole (5121) is provided on the shaft sleeve (512); the rolling body (54) can pass through the through hole (5121) to abut against the groove wall of the groove (531); one end of the damping member (55) is fixedly arranged on the mounting housing (1); the other end abuts against the outer surface of the shaft sleeve (512); when the shaft sleeve (512) rotates, the damping member (55) generates damping on the shaft sleeve (512).

2. The circuit breaker switch energy storage device according to claim 1, characterized in that: The damping member (55) is a clamp spring, a fixing pin (6) is provided on the mounting housing (1), one end of the clamp spring is sleeved on the fixing pin (6), and the other end is clamped on the outer surface of the shaft sleeve (512).

3. The circuit breaker switch energy storage device according to claim 1, characterized in that: It also includes a manual switch (7); a first axial hole is provided on the energy storage gear (4); and the manual switch (7) is inserted into the first axial hole.

4. The circuit breaker switch energy storage device according to claim 3, characterized in that: The cross section of the manual switch (7) is polygonal.

5. The circuit breaker switch energy storage device according to claim 1, characterized in that: It also comprises an energy storage shaft, one end of which is transmission-connected to the energy storage gear (4), and the other end of which is connected to the main shaft of the switch.

6. The circuit breaker switch energy storage device according to claim 1, characterized in that: The installation shell (1) comprises an upper shell cover (11) and a lower shell cover (12); the upper shell cover (11) is connected to the lower shell cover (12) to form the installation cavity; and the driving member (2) is inserted through the lower shell cover (12).

7. The circuit breaker switch energy storage device according to claim 1, characterized in that: The output end of the driving member (2) is provided with a third transmission gear (21), and the third transmission gear (21) is transmission-connected to the reduction gear set (3).

8. A circuit breaker, characterized in that: A circuit breaker switch energy storage device as described in any one of claims 1 to 7 is arranged thereon.

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