Brand-new modularized detachable gear transmission load switch spring actuating mechanism

Abstract

The utility model discloses a brand new modularized detachable gear transmission load switch spring actuating mechanism, which comprises a supporting box body, an opening and closing operation shaft, a grounding operation shaft, an indication shaft, a modularized detachable gear transmission device, an operation handle, a main spring, an indication board and a program lock, an opening and closing operation shaft, a grounding operation shaft and an indication shaft are erected on the supporting box body, a modularized detachable gear transmission device for driving the opening and closing operation shaft to rotate is installed on a front plate of the supporting box body, and an operation handle for manual operation is inserted in the opening and closing operation shaft. A main spring used for storing energy is arranged between the opening and closing operation shaft and the grounding operation shaft. By means of the mode, the opening and closing operation shaft can obtain higher rotating speed, efficiency is greatly improved, the overall size is greatly reduced, material cost is saved, dust can be prevented, the fault rate of gear transmission is greatly reduced, and the possibility that gear teeth are damaged is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electricity, in particular to a new modular detachable gear-driven load switch spring operating mechanism. Background Art

[0002] In the current power switch equipment on the market, for the three-position operation of the load switch, namely: grounding (opening) - grounding separation (opening) - closing, the control mostly adopts the electric and manual dual-function control with the motor plus chain drive as the main body, that is, it can be electrically controlled by the motor driving the chain drive, and can also be manually controlled by using the operating handle.

[0003] Among them, the chain drive using the roller chain as the transmission device of the motor power has many limitations due to various disadvantages of the chain drive. Although the chain drive has no elastic elongation and slipping phenomenon and can ensure an accurate average transmission ratio, it has the following defects at the same time: (1) It can only transmit the same-direction movement between parallel shafts; (2) Due to the polygonal effect of the chain links, the instantaneous chain speed and the instantaneous transmission ratio are inaccurate, the transmission smoothness is poor, and there are impacts and noises during operation; (3) After the chain is worn, the chain pitch will become larger, and the chain is easy to fall off during transmission; (4) It has no overload protection function.

[0004] Specifically, there will be two major problems in the load switch spring operating mechanism using the chain drive as the transmission device:

[0005] First, the clutch device (pressure ring) designed for manual operation, as Figure 1 shown, when performing opening and closing a manually, the clutch lever in the clutch device b will break due to the huge local shear stress because of the small cross-sectional area of the force, resulting in mechanical damage and affecting normal operation;

[0006] Second, when performing electric operation by motor control, because the transmission part uses the chain c drive, compared with the gear drive, the rotational speed of the final wheel is lower, resulting in slower opening and closing speeds and low efficiency.

[0007] Based on the above defects and deficiencies, it is necessary to improve the existing technology and design a new modular detachable gear-driven load switch spring operating mechanism. Summary of the Utility Model

[0008] The main technical problem to be solved by the utility model is to provide a new modular detachable gear-driven load switch spring operating mechanism, in which the opening and closing operating shaft can obtain a higher rotational speed, greatly improving the efficiency, greatly reducing the overall size, saving the material cost, being able to prevent dust, greatly reducing the failure rate of the gear drive, and reducing the possibility of tooth damage.

[0009] To solve the above technical problems, a technical solution adopted by the present utility model is: to provide a brand-new modular detachable gear-driven load switch spring operating mechanism. This brand-new modular detachable gear-driven load switch spring operating mechanism includes a support box body, a closing and opening operating shaft, a grounding operating shaft, an indicating shaft, a modular detachable gear transmission device, an operating handle, a main spring, an indicating plate, and a program lock. The closing and opening operating shaft, the grounding operating shaft, and the indicating shaft are mounted on the support box body. A modular detachable gear transmission device for driving the closing and opening operating shaft to rotate is installed on the front plate of the support box body. An operating handle for manual operation is inserted on the closing and opening operating shaft. A main spring for energy storage is arranged between the closing and opening operating shaft and the grounding operating shaft. The closing and opening operating shaft and the indicating shaft are connected through a connecting component. The indicating shaft is limitedly connected to the grounding operating shaft through a connecting component. An indicating plate is installed at the front end of the indicating shaft. A plurality of program locks are fixed on the front plate through a program lock bracket, and the program locks point to the operating shaft.

[0010] Preferably, a brand-new modular detachable gear-driven load switch spring operating mechanism further includes an indicating shaft fixing plate and an indicating shaft driving plate. The indicating shaft is installed on the support box body through the indicating shaft fixing plate. An indicating shaft driving plate that rotates with the indicating shaft is installed on the indicating shaft. The indicating shaft driving plate cooperates with the connecting parts on the closing and opening operating shaft and the grounding operating shaft respectively.

[0011] Preferably, the modular detachable gear transmission device includes a gear box front plate, a gear box rear plate, a K motor gear, a K transmission gear, and a K motor. The K motor gear and the K transmission gear that are meshed in sequence are mounted between the gear box front plate and the gear box rear plate. A K motor for driving the K motor gear to rotate is installed on the gear box rear plate. The K transmission gear is meshed with a clutch gear sleeved on the closing and opening operating shaft. The gears form a fixed-axis gear train to transmit rotation by relying on A-type flat keys.

[0012] Preferably, the modular detachable gear transmission device is fixed on the front plate of the support box body through bolts and self-locking nuts to form a detachable structure.

[0013] Preferably, the main spring is a spring with a wire diameter of 5.5 mm.

[0014] Preferably, the support box body includes a front plate, a rear mounting plate, and support shafts. The front plate and the rear mounting plate are fixedly connected through a plurality of support shafts.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] While realizing modularization by using the detachable gear transmission device, compared with chain drive, the lower transmission ratio of gear drive enables the closing and opening operating shaft to obtain a higher rotational speed, greatly improving the efficiency;

[0017] Thanks to the gear drive, the overall size of the entire transmission device is greatly reduced, saving material costs. The front plate and rear plate of the gearbox act as dust covers, greatly reducing the failure rate of the gear drive, reducing the possibility of tooth damage, and increasing the service life.

[0018] When operating the spring operating mechanism of the load switch, the status of the structure can be visually observed through the indicator plate, reducing the possibility of misoperation. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of a load switch spring operating mechanism using a chain drive as the transmission device.

[0020] Figure 2 It is a main schematic diagram of a brand-new modular detachable gear drive load switch spring operating mechanism.

[0021] Figure 3 It is an axonometric drawing of a brand-new modular detachable gear drive load switch spring operating mechanism.

[0022] Figure 4 It is a partial schematic structural diagram of a brand-new modular detachable gear drive load switch spring operating mechanism.

[0023] Figure 5 It is a schematic diagram of the unfolded structure of a modular detachable gear drive device.

[0024] Figure 6 It is a partial view of a load switch spring operating mechanism using a chain drive as the transmission device.

[0025] Figure 7 It is a partial view of a brand-new modular detachable gear drive load switch spring operating mechanism.

[0026] Figure 8 It is a schematic diagram of the main spring in the uncompressed state.

[0027] Figure 9 It is a schematic diagram of the main spring in the compressed state.

[0028] Among them, 1. Support box body, 11. Front plate, 12. Rear mounting plate, 13. Support shaft, 2. Opening and closing operation shaft, 21. Clutch gear, 3. Earthing operation shaft, 4. Indicator shaft, 5. Modular detachable gear drive device, 51. Front plate of the gearbox, 52. Rear plate of the gearbox, 53. K motor gear, 54. K transmission gear, 55. K motor, 6. Operating handle, 7. Main spring, 8. Indicator plate, 9. Program lock, 10. Indicator shaft fixing plate, 101. Indicator shaft drive plate. Detailed Implementation Modes

[0029] The following elaborates on the preferred embodiments of the present utility model in conjunction with the accompanying drawings, so that the advantages and features of the utility model can be more easily understood by those skilled in the art, thereby making the protection scope of the present utility model more clearly defined.

[0030] Please refer to Figures 2 to 9 , the embodiments of the present utility model include:

[0031] A brand-new modular detachable gear-driven load switch spring operating mechanism, which includes a support box body 1, a closing and opening operating shaft 2, a grounding operating shaft 3, an indicating shaft 4, a modular detachable gear-driven device 5, an operating handle 6, a main spring 7, an indicating plate 8, and a program lock 9. The support box body 1 is provided with a closing and opening operating shaft 2, a grounding operating shaft 3, and an indicating shaft 4. A modular detachable gear-driven device 5 for driving the closing and opening operating shaft 2 to rotate is installed on the front plate 11 of the support box body 1. A manually operated operating handle 6 is inserted on the closing and opening operating shaft 2. A main spring 7 for energy storage is arranged between the closing and opening operating shaft 2 and the grounding operating shaft 3. The closing and opening operating shaft 2 and the indicating shaft 4 are connected through a connecting component. The indicating shaft 4 is limitedly connected to the grounding operating shaft 3 through a connecting component. An indicating plate 8 is installed at the front end of the indicating shaft 4. A plurality of program locks 9 are fixed on the front plate 11 of the support box body 1 through program lock brackets, and the program locks 9 point to the operating shaft.

[0032] The indicating shaft 4 is installed on the support box body 1 through an indicating shaft fixing plate 10. An indicating shaft driving plate 101 that rotates with it is installed on the indicating shaft 4, and the indicating shaft driving plate 101 cooperates with the connecting parts on the closing and opening operating shaft 2 and the grounding operating shaft 3 respectively.

[0033] The support box body 1 includes a front plate 11, a rear mounting plate 12, and a support shaft 13. The front plate 11 and the rear mounting plate 12 are fixedly connected through a plurality of support shafts 13.

[0034] The modular detachable gear-driven device 5 includes a gear box front plate 51, a gear box rear plate 52, a K motor gear 53, a K transmission gear 54, and a K motor 55. The K motor gear 53 and the K transmission gear 54 that are meshed in sequence are arranged between the gear box front plate 51 and the gear box rear plate 52. A K motor 55 for driving the K motor gear 53 to rotate is installed on the gear box rear plate 52. The K transmission gear 54 is meshed with a clutch gear 21 sleeved on the closing and opening operating shaft 2. The gears form a fixed-axis gear train by relying on A-type flat keys to transmit rotation. When performing electric control, this fixed-axis gear train can transmit the rotation of the K motor 55 to the closing and opening operating shaft 2 to realize the closing and opening actions.

[0035] The modular detachable gear transmission device 5 is fixed on the front plate 11 of the support box body 1 by bolts and self-locking nuts to form a detachable structure.

[0036] Using the transmission ratio formula, the calculation of the rotational speed of the separating and combining operating shaft 2 when using chain drive is as Figure 6 shown:

[0037]

[0038] The calculation of the rotational speed of the operating shaft -2 when using gear drive is as Figure 7 shown:

[0039]

[0040] Where, i: gear transmission ratio, n: rotational speed, z: number of teeth

[0041] Because 8.53 > 6.78, the separating and combining operating shaft 2 using gear drive can obtain a higher rotational speed and higher efficiency.

[0042] Because relevant standards have certain requirements for the opening and closing speeds of load switches, therefore, in order to meet the speed requirements, the main spring 7 is selected as a spring with a wire diameter of 5.5 mm. By compressing the main spring 7 during operation, mechanical force is converted into the spring force of the main spring, so as to meet the rotational speed of the indicating shaft 4 during rotation. The uncompressed state of the main spring 7 is as Figure 8 shown, and the compressed state of the main spring 7 is as Figure 9 shown.

[0043] The working principle of the spring-actuated mechanism of a novel modular detachable gear-driven load switch of the present utility model: By rotating the grounding operating shaft 3 and the separating and combining operating shaft 2, the indicating shaft 4 can be rotated to obtain three different angular states, thereby realizing the three-position operation of the load switch, namely: grounding (opening) - grounding separation (opening) - closing operation.

[0044] When installed, the initial default state of the indicating shaft 4 is grounded (switch off). The grounding operating shaft 2 can be manually rotated using the operating handle, causing the indicating shaft 4 to rotate by a certain angle to the grounded off (switch off) state. At this time, the available closing methods are manual operation and electric operation. When closing manually: Rotate the closing and opening operating shaft 2 using the operating handle 6. Since the operating handle 6 is used, the clutch gear 21 will not rotate with the closing and opening operating shaft 2. The clutch gear 2 is sleeved loosely on the closing and opening operating shaft 2. Rotating the closing and opening operating shaft 2 realizes closing. When closing electrically: The K motor 55 is energized and starts to rotate, driving the K motor gear 53 to rotate. The K motor gear 53 drives the K transmission gear 54 through meshing transmission, thereby transmitting the rotation to the clutch gear 21. At this time, the clutch gear 21 is fixed on the closing and opening operating shaft 2, so it can drive the closing and opening operating shaft 2 to rotate, thus realizing the closing function.

[0045] Similarly, the opening methods also include manual operation and electric operation. The specific principle is the same as above, but when opening, there are still some differences in the operation. When opening manually, use the operating handle to rotate the closing and opening operating shaft 2 in the reverse direction. When opening electrically, it is necessary to reverse-connect the electrodes of the K motor 55 to make the K motor 55 rotate in the reverse direction.

[0046] The utility model relates to a brand-new modular detachable gear-driven load switch spring operating mechanism. The lower transmission ratio of the gear drive enables the closing and opening operating shaft to obtain a higher rotational speed, greatly improving the efficiency. The overall size of the transmission device is greatly reduced, saving material costs. It can prevent dust, greatly reduce the failure rate of the gear drive, reduce the possibility of tooth damage, and improve the service life.

[0047] The above are only the embodiments of the utility model, and do not limit the patent scope of the utility model accordingly. Any equivalent structural or equivalent process transformation made by using the specification and drawings of the utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the utility model.

Claims

1. A new modular detachable gear transmission load switch spring action mechanism, characterized by: The invention comprises a supporting box (1), a separation and combination operating shaft (2), a grounding operating shaft (3), an indicating shaft (4), a modular detachable gear transmission device (5), an operating handle (6), a main spring (7), an indicating plate (8) and a program lock (9), wherein the separation and combination operating shaft (2), the grounding operating shaft (3) and the indicating shaft (4) are mounted on the supporting box (1), and a modular detachable gear transmission device (5) for driving the separation and combination operating shaft (2) to rotate is installed on the front plate (11) of the supporting box (1). A manually operated operating handle (6) is inserted on the closing operating shaft (2), a main spring (7) for storing energy is arranged between the closing and opening operating shaft (2) and the grounding operating shaft (3), the closing and opening operating shaft (2) and the indicating shaft (4) are connected via a connecting assembly, the indicating shaft (4) is position-limitingly connected to the grounding operating shaft (3) via the connecting assembly, an indicating plate (8) is installed at the front end of the indicating shaft (4), and a plurality of program locks (9) are fixed on the front plate (11) via a program lock bracket, and the program locks (9) point to the operating shaft.

2. According to claim 1, a new modular detachable gear transmission load switch spring action mechanism is characterized by: The invention also comprises an indicating shaft fixing plate (10) and an indicating shaft driving plate (101); the indicating shaft (4) is mounted on the supporting box body (1) via the indicating shaft fixing plate (10); the indicating shaft driving plate (101) is mounted on the indicating shaft (4) and rotates therewith; the indicating shaft driving plate (101) is respectively matched with connecting pieces on the separation and combination operating shaft (2) and the grounding operating shaft (3).

3. According to claim 1, a new modular detachable gear transmission load switch spring action mechanism is characterized by: The modular detachable gear transmission device (5) comprises a gear box front plate (51), a gear box rear plate (52), a K motor gear (53), a K transmission gear (54) and a K motor (55); a K motor gear (53) and a K transmission gear (54) are arranged between the gear box front plate (51) and the gear box rear plate (52) and meshed in sequence; a K motor (55) is mounted on the gear box rear plate (52) to drive the K motor gear (53) to rotate; the K transmission gear (54) meshes with a clutch gear (21) sleeved on the separation and connection operation shaft (2); the gears rely on A-type flat keys to form a fixed axis gear train to transmit rotation.

4. According to claim 1, a new modular detachable gear transmission load switch spring action mechanism is characterized by: The modular detachable gear transmission device (5) is fixed to the front plate (11) of the supporting box (1) by means of bolts and self-locking nuts to form a detachable structure.

5. According to claim 1, a new modular detachable gear transmission load switch spring action mechanism is characterized by: The main spring (7) is a spring with a wire diameter of 5.5 mm.

6. According to claim 1, a new modular detachable gear transmission load switch spring action mechanism is characterized by: The support box (1) comprises a front plate (11), a rear mounting plate (12) and a support shaft (13); the front plate (11) and the rear mounting plate (12) are fixedly connected via a plurality of support shafts (13).

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