Manual driving mechanism for energy storage device of circuit breaker

Abstract

A manual driving mechanism for an energy storage device of a circuit breaker is provided with a ratchet wheel connected with an energy storage mechanism and a pawl for driving the ratchet wheel to rotate, and is characterized by further comprising a second transmission shaft which is connected with the pawl and drives the pawl to move; the first transmission shaft is vertically arranged on the right side of the second transmission shaft and transmits motion and power to the second transmission shaft through a gear set; the driving shaft is coaxially arranged on the right side of the first transmission shaft, is supported by two supporting pieces which are arranged in a left-right spaced mode and is selectively connected with the first transmission shaft through an elastic assembly; and the driving rod group is detachably connected with the right end of the driving shaft and is used for driving the driving shaft to rotate. Under the condition that the space of an existing energy storage device is limited, the function that energy storage is directly conducted on the mechanism through manual operation by striding over a motor is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of an energy storage device of a spring operating mechanism of a high-voltage circuit breaker, in particular to a manual driving mechanism of an energy storage device of a circuit breaker. Background Art

[0002] The space at one end of the energy storage mechanism of the existing circuit breaker spring energy storage device is narrow, which makes it inconvenient to set up a drive component for manual energy storage operation. Therefore, it is necessary to improve and optimize the existing energy storage device to facilitate manual energy storage operation without changing the box size of the existing energy storage device. Utility Model Content

[0003] In view of the problems and shortcomings in the prior art, the utility model provides a manual driving mechanism for a circuit breaker energy storage device.

[0004] The technical solution of this utility model is as follows:

[0005] A manual drive mechanism for a circuit breaker energy storage device comprises a ratchet wheel connected to the energy storage mechanism and a ratchet pawl driving the ratchet wheel to rotate, wherein the ratchet wheel is used to drive the energy storage device to move and realize energy storage operation;

[0006] a second transmission shaft, the second transmission shaft being connected to the pawl and driving the pawl to move;

[0007] A first transmission shaft is vertically arranged on the right side of the second transmission shaft and transmits motion and power to the second transmission shaft through a gear set;

[0008] A drive shaft is coaxially arranged on the right side of the first transmission shaft, supported by two support members spaced apart from each other, and selectively connected to the first transmission shaft through an elastic component;

[0009] The driving rod assembly is detachably connected to the right end of the driving shaft and is used to drive the driving shaft to rotate.

[0010] Specifically, the bottom surface of the support is connected to the box body of the energy storage device, and a connecting hole is provided on the upper part. The drive shaft passes through the connecting hole and can slide in the connecting hole. In order to reduce sliding resistance, a sliding bearing can be provided in the connecting hole.

[0011] According to a specific embodiment, the elastic component includes a spring, a reset member, a positioning pin and a limit member; the limit member, spring and reset member are slidably mounted on the drive shaft from left to right in sequence, wherein the limit member is located between the spring and the support member on the left, and the positioning pin is vertically connected to the drive shaft and is located on the right side of the reset member; when the drive shaft is in a connected state with the first transmission shaft, the left end of the limit member abuts against the support member, and the reset member squeezes the spring to the left; when the drive shaft is in a separated state from the first transmission shaft, the spring is reset.

[0012] When performing energy storage operation, the driving rod group is pushed to the left, the driving shaft connected thereto moves to the left, the positioning pin on the driving shaft pushes the reset member to the left, the reset member squeezes the spring to the left, the left end of the driving shaft slides to the left in the support member and is connected to the first transmission shaft; after the energy storage is completed, when the driving shaft resets to the right under the action of the spring elastic force, the right end of the spring extends to push the reset member to the right, the reset member pushes the positioning pin to the right, and the positioning pin drives the driving shaft to move right and separate from the first transmission shaft.

[0013] Furthermore, the reset member adopts a circular ring, the inner hole of which is larger than the shaft diameter of the drive shaft and smaller than the outer diameter of the spring, and the outer diameter is larger than the outer diameter of the spring. The positioning pin adopts a cotter pin or an elastic pin, which is connected to the drive shaft through a positioning hole provided on the drive shaft. The limiter adopts a sleeve with a flange, and the outer diameter of the flange at the right end is larger than the outer diameter of the spring, and the inner hole is larger than the shaft diameter of the drive shaft. The outer diameter of the left end matches the inner hole of the support member, so that the support member can play an axial limiting role on the limiter.

[0014] In order to control the distance between the drive shaft and the first transmission shaft after separation so as to prevent the right end of the drive shaft from extending out of the box of the energy storage device, a shoulder is also provided on the drive shaft, located at the left end of the support member. When the drive shaft is in a position separated from the first transmission shaft, the right end of the shoulder abuts against the support member.

[0015] According to a specific embodiment, the left end of the driving shaft is provided with an inner hexagonal connection hole, and the right end of the first transmission shaft is provided with an outer hexagonal connector that matches the inner hexagonal connection hole, and the driving shaft is plugged into the first transmission shaft when it moves to the left. When the driving shaft extends to the right and resets under the action of the elastic force of the spring, the spring pushes the reset member to the right, and the reset member pushes the positioning pin to the right, and the positioning pin drives the driving shaft to move right and separate from the first transmission shaft.

[0016] According to a specific embodiment, the gear set includes a first gear connected to the first transmission shaft and a second gear connected to the second transmission shaft, and the first gear and the second gear are bevel gears or helical gears meshing with each other.

[0017] According to a specific embodiment, the driving rod assembly includes a driving rod and a handle, the left end of the driving rod is provided with an inner hexagonal connection hole for selectively plugging with the driving shaft, the right end is connected to the handle, and the extension direction of the handle is perpendicular to the axis of the driving rod. Specifically, the right end of the driving shaft is provided with an outer hexagonal connector connected to the driving rod.

[0018] Working principle: when the energy storage device needs to be operated for energy storage, first, the operator plugs the left end of the drive rod group into the right end of the drive shaft; then, hold the handle and push the drive rod to the left, the drive rod pushes the drive shaft to move to the left, the inner hexagonal connection hole at the left end of the drive shaft is sleeved onto the outer hexagonal connection head at the right end of the first transmission shaft, then turn the handle to drive the drive shaft to rotate, and transmit the motion and power to the second transmission shaft through the first transmission shaft and the gear set, the second transmission shaft drives the pawl to move, thereby driving the ratchet to rotate, and then drives the energy storage mechanism to move, realizing the energy storage operation. After completing the energy storage operation, release the handle, the spring resets, pushes the reset member to move right, the reset member pushes the positioning pin to move right, thereby driving the drive shaft to move right and separate from the first transmission shaft, and finally, pull the drive rod group out of the drive shaft.

[0019] The beneficial effects of the utility model are:

[0020] The first transmission shaft, the second transmission shaft and the gear set are provided to transmit motion and power to the ratchet, and a drive shaft is provided on the right side of the first transmission shaft, and the drive shaft is connected to the left and right by an elastic component to achieve left-right sliding connection, thereby achieving connection and separation with the first transmission shaft, and driven by a drive rod set. When the drive shaft is in a connected state with the first transmission shaft, the drive shaft is driven to rotate by the drive rod set, thereby transmitting motion and power to the first transmission shaft. Manual energy storage operation is realized when the box space of the existing energy storage device is limited, and the function of directly storing energy for the mechanism by manual operation across the motor is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an embodiment;

[0022] Figure 2 for Figure 1 Sectional view of section AA;

[0023] 1. Driving rod assembly; 2. Driving shaft; 3. Support member; 4. Positioning pin; 5. Reset member; 6. Spring; 7. Limiting member; 8. First transmission shaft; 9. First gear; 10. Second transmission shaft; 11. Second gear; 12. Ratchet pawl; 13. Ratchet. DETAILED DESCRIPTION

[0024] The following will further describe the technical means adopted to achieve the predetermined inventive purpose of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0025] See also Figure 1 and Figure 2 As shown, a manual drive mechanism of a circuit breaker energy storage device comprises a ratchet 13 connected to the energy storage mechanism and a pawl 12 driving the ratchet 13 to rotate, wherein the ratchet 13 is used to drive the energy storage device to move to realize the energy storage operation;

[0026] A second transmission shaft 10, wherein the second transmission shaft 10 is connected to the pawl 12 and drives the pawl 12 to move;

[0027] The first transmission shaft 8 is vertically arranged on the right side of the second transmission shaft 10 and transmits motion and power to the second transmission shaft 10 through the gear set;

[0028] The drive shaft 2 is coaxially arranged on the right side of the first transmission shaft 8, supported by two support members 3 arranged at intervals on the left and right, and selectively connected to the first transmission shaft 8 through an elastic component;

[0029] The driving rod assembly 1 is detachably connected to the right end of the driving shaft 2 and is used to drive the driving shaft 2 to rotate.

[0030] Specifically, the bottom surface of the support member 3 is connected to the box body of the energy storage device, and a connecting hole is provided on the upper part. The drive shaft 2 passes through the connecting hole and can slide in the connecting hole. In order to reduce sliding resistance, a sliding bearing can be provided in the connecting hole.

[0031] According to a specific embodiment, the elastic component includes a spring 6, a reset member 5, a positioning pin 4 and a limit member 7; the limit member 7, the spring 6 and the reset member 5 are slidably mounted on the drive shaft 2 from left to right in sequence, wherein the limit member 7 is located between the spring 6 and the support member 3 on the left side, and the positioning pin 4 is vertically connected to the drive shaft 2 and is located on the right side of the reset member 5; when the drive shaft 2 is in a connected state with the first transmission shaft 8, the left end of the limit member 7 abuts against the support member 3, and the reset member 5 squeezes the spring 6 to the left; when the drive shaft 2 is in a separated state from the first transmission shaft 8, the spring 6 is reset.

[0032] When performing energy storage operation, the driving rod group 1 is pushed to the left, the driving shaft 2 connected thereto moves to the left, the positioning pin 4 on the driving shaft 2 pushes the reset member 5 to the left, the reset member 5 squeezes the spring 6 to the left, and the left end of the driving shaft 2 slides to the left in the support member 3 and is connected to the first transmission shaft 8; after the energy storage is completed, when the driving shaft 2 is reset to the right under the action of the elastic force of the spring 6, the right end of the spring 6 extends to push the reset member 5 to the right, the reset member 5 pushes the positioning pin 4 to the right, and the positioning pin 4 drives the driving shaft 2 to move right and separate from the first transmission shaft 8.

[0033] Furthermore, the reset member 5 is a circular ring, the inner hole of which is larger than the shaft diameter of the drive shaft 2 and smaller than the outer diameter of the spring 6, and the outer diameter of which is larger than the outer diameter of the spring 6. The positioning pin 4 is a cotter pin or an elastic pin, which is connected to the drive shaft 2 through a positioning hole provided on the drive shaft 2. The limiter 7 is a sleeve with a flange, and the outer diameter of the flange at the right end is larger than the outer diameter of the spring 6, and the inner hole is larger than the shaft diameter of the drive shaft 2. The outer diameter of the left end matches the inner hole of the support member 3, so that the support member 3 can play an axial limiting role on the limiter 7.

[0034] In order to control the distance between the drive shaft 2 and the first transmission shaft 8 after separation so as to prevent the right end of the drive shaft 2 from extending out of the box of the energy storage device, a shoulder is also provided on the drive shaft 2, which is located at the left end of the support 3. When the drive shaft 2 is in a position separated from the first transmission shaft 8, the right end of the shoulder abuts against the support 3.

[0035] According to a specific embodiment, the left end of the drive shaft 2 is provided with an inner hexagonal connection hole, and the right end of the first transmission shaft 8 is provided with an outer hexagonal connector that matches the inner hexagonal connection hole, and when the drive shaft 2 moves to the left, it is plugged into the first transmission shaft 8. When the drive shaft 2 is extended to the right and reset under the elastic force of the spring 6, the spring 6 pushes the reset member 5 to the right, and the reset member 5 pushes the positioning pin 4 to the right, and the positioning pin 4 drives the drive shaft 2 to move right and separate from the first transmission shaft 8.

[0036] According to a specific embodiment, the gear set includes a first gear 9 connected to the first transmission shaft 8 and a second gear 11 connected to the second transmission shaft 10, and the first gear 9 and the second gear 11 are mutually meshing bevel gears or helical gears.

[0037] According to a specific embodiment, the driving rod assembly 1 includes a driving rod and a handle, the left end of the driving rod is provided with an inner hexagonal connection hole for selectively plugging with the driving shaft 2, the right end is connected to the handle, and the extension direction of the handle is perpendicular to the axis of the driving rod. Specifically, the right end of the driving shaft 2 is provided with an outer hexagonal connector connected to the driving rod.

[0038] Working principle: when the energy storage device needs to be operated for energy storage, first, the operator plugs the left end of the driving rod group 1 into the right end of the driving shaft 2; then hold the handle and push the driving rod to the left, the driving rod pushes the driving shaft 2 to move to the left, the inner hexagonal connection hole at the left end of the driving shaft 2 is sleeved onto the outer hexagonal connection head at the right end of the first transmission shaft 8, then turn the handle to drive the driving shaft 2 to rotate, and transmit the motion and power to the second transmission shaft 10 through the first transmission shaft 8 and the gear set, the second transmission shaft 10 drives the pawl 12 to move, thereby driving the ratchet 13 to rotate, and then drives the energy storage mechanism to move, realizing the energy storage operation. After completing the energy storage operation, release the handle, the spring 6 is reset, pushing the reset member 5 to move right, the reset member 5 pushes the positioning pin 4 to move right, thereby driving the driving shaft 2 to move to the right and separate from the first transmission shaft 8, and finally the driving rod group 1 is pulled out from the driving shaft 2.

[0039] The above is a preferred embodiment of the present invention, but the present invention is not limited to the above embodiments and examples. Various changes, equivalent substitutions, improvements, etc. made within the knowledge scope of those skilled in the art without departing from the concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A manual drive mechanism for a circuit breaker energy storage device, comprising a ratchet (13) connected to the energy storage mechanism and a ratchet pawl (12) for driving the ratchet (13) to rotate, characterized in that: Also includes: A second transmission shaft (10) connected to the ratchet (12) and driving the ratchet (12) to move; A first transmission shaft (8) is vertically arranged on the right side of the second transmission shaft (10) and transmits motion and power to the second transmission shaft (10) through a gear set; A drive shaft (2) is coaxially arranged on the right side of the first transmission shaft (8), supported by two support members (3) spaced apart from each other, and selectively connected to the first transmission shaft (8) via an elastic component; The driving rod assembly (1) is detachably connected to the right end of the driving shaft (2) and is used to drive the driving shaft (2) to rotate.

2. The driving mechanism according to claim 1, characterized in that: The elastic component comprises a spring (6), a reset member (5), a positioning pin (4) and a limit member (7); the limit member (7), the spring (6) and the reset member (5) are slidably mounted on the drive shaft (2) from left to right, wherein the limit member (7) is located between the spring (6) and the support member (3) on the left side, and the positioning pin (4) is vertically connected to the drive shaft (2) and is located on the right side of the reset member (5); when the drive shaft (2) is in a state of being connected to the first transmission shaft (8), the left end of the limit member (7) abuts against the support member (3), and the reset member (5) presses the spring (6) to the left; when the drive shaft (2) is in a state of being separated from the first transmission shaft (8), the spring (6) is reset.

3. The driving mechanism according to claim 2, characterized in that: The reset member (5) is a circular ring sheet, the inner hole of which is larger than the shaft diameter of the drive shaft (2) and smaller than the outer diameter of the spring, and the outer diameter of which is larger than the outer diameter of the spring.

4. The driving mechanism according to claim 2, characterized in that: The positioning pin (4) is a cotter pin or an elastic pin, and is connected to the driving shaft through a positioning hole arranged on the driving shaft (2).

5. The driving mechanism according to claim 2, characterized in that: The limiting member (7) is a sleeve with a flange, and the outer diameter of the flange at the right end is larger than the outer diameter of the spring (6), and the inner hole is larger than the shaft diameter of the driving shaft (2).

6. The driving mechanism according to claim 2, characterized in that: The drive shaft (2) is also provided with a shaft shoulder, which is located at the left end of the support member (3); when the drive shaft (2) is located at a position separated from the first transmission shaft (8), the right end of the shaft shoulder abuts against the support member (3).

7. The driving mechanism according to claim 1, characterized in that: The left end of the driving shaft (2) is provided with an inner hexagonal connecting hole, and the right end of the first transmission shaft (8) is provided with an outer hexagonal connecting head that matches the inner hexagonal connecting hole. When the driving shaft (2) moves to the left, it is plugged into the first transmission shaft (8).

8. The driving mechanism according to claim 1, characterized in that: The gear set comprises a first gear (9) connected to a first transmission shaft (8) and a second gear (11) connected to a second transmission shaft (10); the first gear and the second gear are mutually meshing bevel gears or helical gears.

9. The driving mechanism according to claim 1, characterized in that: The driving rod assembly (1) comprises a driving rod and a handle. The left end of the driving rod is provided with an inner hexagonal connection hole for selectively plugging with the driving shaft (2). The right end is connected to the handle, and the extension direction of the handle is perpendicular to the axis of the driving rod.

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