Bevel gear drive integrated isolation knife transmission shaft

Abstract

This utility model discloses a bevel gear driven integrated isolation knife drive shaft, belonging to the technical field of isolation knife drive shafts. It includes a bearing base and an isolation knife mounting sleeve. A drive shaft body is horizontally arranged above the bearing base, and three transmission frames are mounted on the drive shaft body. The bottom of the isolation knife mounting sleeve is located at the upper end of each transmission frame. A third mounting seat is located on the front side of the bearing base, and a first bevel gear and a second bevel gear are connected and mounted on the rear side of the third mounting seat. The second bevel gear is mounted on the outside of the drive shaft body. Connecting rods are hinged to the upper ends of each transmission frame, and the top ends of the connecting rods are hinged to the middle of the bottom of the isolation knife mounting sleeve. This bevel gear driven integrated isolation knife drive shaft solves the problems of high requirements for field operating conditions and easy jamming in existing isolation knife drive shafts. It is suitable for isolation equipment in power systems, ensuring the safe and stable operation of the power system.

Description

Technical Field

[0001] This utility model relates to the technical field of isolation knife drive shafts, specifically a bevel gear driven integrated isolation knife drive shaft. Background Technology

[0002] The isolating knife drive shaft, also known as an integrated drive shaft, is a key component of isolation equipment in power systems, playing a crucial role in substations, distribution rooms, and other similar environments. One end connects to the operating mechanism, and the other end connects to the isolating knife. When the operator drives the operating mechanism, the drive shaft precisely transmits torque, causing the isolating knife to smoothly open or close, achieving safe circuit isolation and conduction. The drive shaft is typically made of high-strength alloy material, possessing excellent mechanical properties and withstanding wear and fatigue from frequent operation. This ensures reliable isolation performance under various complex power environments, guaranteeing the safe and stable operation of the power system. However, existing isolating knife drive shafts still have certain problems in use:

[0003] For example, the technical solution of the three-phase integrated isolating knife synchronous frame and isolating switch transmission structure with application number 202020927370.0 is as follows: it includes an A-phase knife frame, suitable for connecting the A-phase isolating knife; a B-phase knife frame, suitable for connecting the B-phase isolating knife; a C-phase knife frame, suitable for connecting the C-phase isolating knife; and a cross frame, which is fixedly connected to the A-phase knife frame, the B-phase knife frame and the C-phase knife frame respectively, and is suitable for making the A-phase knife frame, the B-phase knife frame, the C-phase knife frame and the cross frame move synchronously. A disconnector switch transmission structure includes a transmission shaft adapted to drive three rotating arms to rotate synchronously; an A-phase disconnector, a B-phase disconnector, and a C-phase disconnector are rotatably connected to a disconnector mounting base; and the aforementioned three-phase integrated disconnector synchronous frame. The A-phase disconnector and the A-phase arc-shaped connecting rod are both connected to the A-phase cutter holder, the B-phase disconnector and the B-phase arc-shaped connecting rod are both connected to the B-phase cutter holder, and the C-phase disconnector and the C-phase arc-shaped connecting rod are both connected to the C-phase cutter holder. However, existing split disconnectors require good on-site working conditions, and the mounting surface must be flat; otherwise, jamming or other problems may occur during the transmission process.

[0004] In view of this, in-depth research was conducted on the above issues, which led to the creation of this case.

[0005] To address the aforementioned issues, an innovative design was implemented based on the existing isolation knife drive shaft. Utility Model Content

[0006] The purpose of this invention is to provide a bevel gear driven integrated isolation knife transmission shaft to solve the problems mentioned in the background art, such as high requirements for on-site working conditions and easy jamming during transmission.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A bevel gear driven integrated isolation knife transmission shaft includes a bearing base and an isolation knife mounting sleeve. A transmission shaft body is horizontally arranged above the bearing base, and three transmission frames are mounted on the transmission shaft body. The bottom of the isolation knife mounting sleeve is provided at the upper end of each transmission frame. A third mounting seat is provided on the front side of the bearing base, and a first bevel gear and a second bevel gear are connected and installed on the rear side of the third mounting seat. The second bevel gear is installed on the outside of the transmission shaft body. A connecting rod is hinged to the upper end of each transmission frame, and the top end of each connecting rod is hinged to the middle of the bottom of the isolation knife mounting sleeve.

[0009] Preferably, the bearing base has several mounting holes extending through it, and the diameter of the mounting holes is 10 mm.

[0010] The above technical solution involves several mounting holes with a diameter of 10 mm on the top of the bearing base. These mounting holes are sized to facilitate the use of bolts or connectors of specific specifications for installation and fixation, ensuring the accuracy and stability of the bearing base installation and improving the overall equipment installation efficiency.

[0011] Preferably, a first mounting seat is fixedly installed on the left side of the bearing base by bolts, and a second mounting seat is fixedly installed on the right side of the bearing base by bolts, and the drive shaft body is rotatably connected between the first mounting seat and the second mounting seat.

[0012] By adopting the above technical solution, the first mounting seat on the left side of the bearing base and the second mounting seat on the right side, as well as the transmission shaft body rotatably connected between the two, provide stable support and rotation foundation for the transmission shaft body, ensuring the smoothness of the transmission shaft body during operation, reducing shaking and deviation, and reducing the risk of transmission jamming.

[0013] Preferably, the front side of the third mounting base is provided with a drive connection end, and the rear side of the drive connection end is connected to a first bevel gear, and the front end of the first bevel gear is rotatably connected to the rear side of the third mounting base.

[0014] By adopting the above technical solution, the drive connection end on the front side of the third mounting base and the first bevel gear connected to the rear side are convenient to connect with external drive equipment. The drive connection end can efficiently transmit external driving force to the first bevel gear, realize power input, and provide a stable power source for the entire transmission system.

[0015] Preferably, a second bevel gear is meshed with the left rear side of the first bevel gear, and the second bevel gear is fixedly connected to the outside of the drive shaft body by a mounting sleeve.

[0016] Using the above technical solution, the first bevel gear and the second bevel gear mesh with each other. The second bevel gear is fixed to the outside of the transmission shaft body by a mounting sleeve. The meshing transmission of the first bevel gear and the second bevel gear can change the direction of power transmission, so that the external driving force can be transmitted to the transmission shaft body at a suitable angle, thereby realizing the rotation of the transmission shaft body, while ensuring the smoothness and reliability of the transmission.

[0017] Preferably, the right side of the drive shaft body extends through the fourth mounting base, and the fourth mounting base is located to the left of the second mounting base.

[0018] The above technical solution includes a fourth mounting bracket that runs through the right side of the drive shaft body. This fourth mounting bracket further enhances the support stability of the drive shaft body, reduces vibration and bending deformation of the drive shaft body during rotation, helps improve transmission accuracy, and ensures that the isolating knife can accurately perform opening and closing operations.

[0019] Preferably, the isolation knife mounting sleeve has isolation knife bodies installed on both the left and right sides inside, and a first spring is connected above the isolation knife bodies, and a second spring is connected below the isolation knife bodies.

[0020] By adopting the above technical solution, the isolating knife body inside the isolating knife mounting sleeve, as well as the first spring and the second spring connecting the isolating knife body, can buffer and reset the isolating knife body. During the opening or closing process of the isolating knife, the impact force on the isolating knife is reduced, and at the same time, the isolating knife can be accurately reset after operation, thereby improving the service life and operational reliability of the isolating knife.

[0021] Compared with the prior art, the beneficial effects of this utility model are: the bevel gear drives the integrated isolation knife transmission shaft,

[0022] 1. Improve transmission stability: The support of the first, second and fourth mounting seats for the transmission shaft body, as well as the smooth transmission of the bevel gear set, effectively reduce the shaking, offset and vibration of the transmission shaft body during operation, ensure transmission stability, reduce the possibility of transmission jamming, and enable the isolating knife to stably perform opening and closing operations.

[0023] 2. Enhanced equipment reliability: The mounting holes facilitate accurate installation, the drive connection end efficiently transmits power, and the spring provides a buffering and resetting effect on the isolating knife body. These structures work together to enhance the reliability of the equipment in multiple aspects, from installation and power transmission to isolating knife operation, ensuring stable operation of the equipment under various working conditions. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the bearing base of this utility model;

[0025] Figure 2 This is a schematic diagram of the rotating structure of the transmission frame of this utility model;

[0026] Figure 3 This is a schematic diagram of the bevel gear set structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the transmission frame connection structure of this utility model;

[0028] Figure 5 This is a schematic diagram of the isolation knife mounting sleeve structure for this utility model.

[0029] In the diagram: 1. Bearing base; 2. Mounting hole; 3. First mounting seat; 4. Second mounting seat; 5. Third mounting seat; 6. Fourth mounting seat; 7. Drive shaft body; 8. Drive connection end; 9. First bevel gear; 10. Second bevel gear; 11. Transmission frame; 12. Connecting rod; 13. Isolation knife mounting sleeve; 14. Isolation knife body; 15. First spring; 16. Second spring. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1-5 This utility model provides a technical solution:

[0032] A bevel gear driven integrated isolation knife transmission shaft includes a bearing base 1 and an isolation knife mounting sleeve 13. A transmission shaft body 7 is horizontally arranged above the bearing base 1, and three transmission brackets 11 are mounted on the transmission shaft body 7. The bottom of the isolation knife mounting sleeve 13 is provided at the upper end of each transmission bracket 11. A third mounting seat 5 is provided on the front side of the bearing base 1, and a first bevel gear 9 and a second bevel gear 10 are connected and installed on the rear side of the third mounting seat 5. The second bevel gear 10 is installed on the outside of the transmission shaft body 7. A connecting rod 12 is hinged to the upper end of each transmission bracket 11, and the top end of each connecting rod 12 is hinged to the middle of the bottom of the isolation knife mounting sleeve 13.

[0033] Several mounting holes 2 are provided through the top of the bearing base 1, and the diameter of the mounting holes 2 is 10 mm. The standard-sized mounting holes 2 facilitate the use of matching mounting bolts, enabling the bearing base 1 to be accurately and quickly installed with other equipment, thus improving the convenience and versatility of installation.

[0034] A first mounting seat 3 is fixedly installed on the left side of the bearing base 1 by bolts, and a second mounting seat 4 is fixedly installed on the right side of the bearing base 1 by bolts. The drive shaft body 7 is rotatably connected between the first mounting seat 3 and the second mounting seat 4. The first mounting seat 3 on the left side and the second mounting seat 4 on the right side of the bearing base 1 are rotatably connected to the drive shaft body 7. These two mounting seats provide stable support points for the drive shaft body 7, enabling the drive shaft body 7 to maintain good concentricity and stability during rotation, and reducing drive shaft shaking and wear caused by unstable installation.

[0035] A drive connection end 8 is provided on the front side of the third mounting base 5, and a first bevel gear 9 is connected to the rear side of the drive connection end 8. The front end of the first bevel gear 9 is rotatably connected to the rear side of the third mounting base 5. A second bevel gear 10 is meshed with the left rear side of the first bevel gear 9, and the second bevel gear 10 is fixedly connected to the outside of the transmission shaft body 7 by a mounting sleeve. The right side of the transmission shaft body 7 passes through the fourth mounting base 6, and the fourth mounting base 6 is located to the left of the second mounting base 4. The drive connection end 8 on the front side of the third mounting base 5 and the first bevel gear 9 connected to the rear side allow the drive connection end 8 to easily dock with an external drive device, ensuring that power can be stably and efficiently transmitted to the first bevel gear 9, providing reliable power transmission for the entire transmission system. The first bevel gear 9 and the second bevel gear 10 mesh with each other. The second bevel gear 10 is fixed to the outside of the transmission shaft body 7. The meshing transmission of the bevel gears can change the direction of power transmission, so that the external driving force can be transmitted to the transmission shaft body 7 at a suitable angle, and a larger transmission ratio can be achieved, ensuring that the transmission shaft body 7 obtains a stable and suitable speed, and improving transmission efficiency. The fourth mounting seat 6 penetrates through the right side of the transmission shaft body 7. The fourth mounting seat 6 further enhances the support of the transmission shaft body 7 on the basis of the original support of the transmission shaft body 7, effectively sharing the radial force and axial force generated when the transmission shaft body 7 rotates, reducing the deformation of the transmission shaft body 7, and improving the rigidity and transmission accuracy of the transmission shaft.

[0036] Isolator bodies 14 are installed on both the left and right sides inside the isolator mounting sleeve 13. A first spring 15 is connected above the isolator bodies 14, and a second spring 16 is connected below the isolator bodies 14. The isolator bodies 14 inside the isolator mounting sleeve 13, as well as the first spring 15 and the second spring 16 connecting the isolator bodies 14, can play a buffering role during the opening or closing of the isolator, preventing the isolator bodies 14 from being damaged due to excessive instantaneous impact force. At the same time, after the operation is completed, they help the isolator bodies 14 to quickly reset, ensuring the accuracy and reliability of the isolator operation.

[0037] Working principle:

[0038] In use, the external drive device is connected to the drive connection end 8 on the front side of the third mounting base 5. After the drive device is started, power is transmitted to the first bevel gear 9. The first bevel gear 9 rotates and drives the second bevel gear 10, which meshes with it, to rotate. Since the second bevel gear 10 is fixed to the outside of the transmission shaft body 7 by the mounting sleeve, the transmission shaft body 7 rotates accordingly. When the transmission shaft body 7 rotates, the transmission frame 11 mounted on it rotates synchronously. The connecting rod 12 hinged at the upper end of the transmission frame 11 moves with the rotation of the transmission frame 11. The isolation knife mounting sleeve 13 hinged at the top of the connecting rod 12 rotates under the drive of the connecting rod 12, thereby driving the isolation knife body 14 to perform opening or closing operations. During the movement of the isolation knife body 14, the first spring 15 and the second spring 16 play a role in buffering and resetting. Throughout the process, the mounting base on the bearing base 1 provides stable support for the transmission shaft body 7, ensuring the smoothness of the transmission.

[0039] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bevel gear driven integrated isolation knife transmission shaft, comprising a bearing base (1) and an isolation knife mounting sleeve (13), wherein a transmission shaft body (7) is horizontally arranged above the bearing base (1), and three transmission frames (11) are mounted on the transmission shaft body (7), and the bottom of the isolation knife mounting sleeve (13) is provided at the upper end of each transmission frame (11), characterized in that: The bearing base (1) is provided with a third mounting seat (5) on the front side, and a first bevel gear (9) and a second bevel gear (10) are connected and installed on the rear side of the third mounting seat (5). The second bevel gear (10) is installed on the outside of the transmission shaft body (7). The upper end of the transmission frame (11) is hinged with a connecting rod (12), and the top end of the connecting rod (12) is hinged to the middle of the bottom of the isolation knife mounting sleeve (13).

2. The bevel gear driven integrated isolation knife transmission shaft according to claim 1, characterized in that: The bearing base (1) has several mounting holes (2) through it, and the diameter of the mounting holes (2) is 10 mm.

3. The bevel gear driven integrated isolation knife transmission shaft according to claim 1, characterized in that: The bearing base (1) has a first mounting seat (3) fixedly installed on the left side by bolts, and a second mounting seat (4) fixedly installed on the right side of the bearing base (1) by bolts, and the transmission shaft body (7) is rotatably connected between the first mounting seat (3) and the second mounting seat (4).

4. The bevel gear driven integrated isolation knife transmission shaft according to claim 1, characterized in that: The third mounting base (5) is provided with a drive connection end (8) on the front side, and a first bevel gear (9) is connected to the rear side of the drive connection end (8), and the front end of the first bevel gear (9) is rotatably connected to the rear side of the third mounting base (5).

5. The bevel gear driven integrated isolation knife transmission shaft according to claim 1, characterized in that: The second bevel gear (10) is meshed with the left rear side of the first bevel gear (9), and the second bevel gear (10) is fixedly connected to the outside of the transmission shaft body (7) by a mounting sleeve.

6. The bevel gear driven integrated isolation knife transmission shaft according to claim 3, characterized in that: The right side of the drive shaft body (7) extends through the fourth mounting seat (6), and the fourth mounting seat (6) is located to the left of the second mounting seat (4).

7. The bevel gear driven integrated isolation knife transmission shaft according to claim 1, characterized in that: The isolation knife mounting sleeve (13) has isolation knife bodies (14) installed on both the left and right sides inside, and a first spring (15) is connected above the isolation knife bodies (14), and a second spring (16) is connected below the isolation knife bodies (14).

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