Device for monitoring mechanical characteristics of high-voltage circuit breaker

Abstract

The utility model discloses a mechanical characteristic monitoring device for a high-voltage circuit breaker, which relates to the technical field of mechanical characteristic monitoring devices for high-voltage circuit breakers, and comprises a press-down adjusting box which is arranged at the lower end in a main body bracket, and a lifting plate is connected in the press-down adjusting box in an up-and-down sliding manner; according to the device, an adjusting lead screw is mounted, so that a transmission rod and a lifting plate can be pushed to move downwards under the rotating operation of a worker, then hydraulic oil in a pressing adjusting box is extruded, the hydraulic oil enters a roller main body through a connecting pipe, and then a telescopic adjusting support in the roller main body extends out; and then the stroke of one-circle rotation of the roller body and the diameter of the roller body are adjusted, the roller body is prevented from sinking into a pit in the field ground, the roller body is prevented from being clamped in the pit, large resistance to movement of the device is avoided, a worker can easily push the device to move, and the transportation efficiency of the device is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical characteristic monitoring devices for high-voltage circuit breakers, in particular to a mechanical characteristic monitoring device for high-voltage circuit breakers. Background Art

[0002] Circuit breakers play two roles in the power system. One is the control role, that is, according to the power grid operation requirements, some electrical equipment and lines are put into or out of operation and switched to standby or maintenance status; the other is the protection role, that is, when an electrical equipment or line fails, the circuit breaker is activated by relay protection or automatic device to quickly cut off the faulty part from the power grid to protect the normal operation of the fault-free part of the power grid. Therefore, in order to ensure the safe and reliable operation of the circuit breaker, it is necessary to use a high-voltage circuit breaker mechanical characteristic monitoring device to monitor the circuit breaker;

[0003] The existing monitoring devices are sometimes used outdoors, so it is difficult to find a suitable operating platform to place the monitoring devices. When operators connect lines or perform other installation operations on the monitoring device body, they need to bend or squat repeatedly to operate, which greatly increases the labor intensity of the operators. Secondly, during transportation, it is inevitable that the ground is uneven or a threshold needs to be crossed. At this time, it will be difficult to push the box, and the operator may even need to lift the monitoring device.

[0004] For example, the Chinese authorized patent with announcement number CN 219601900 U (mechanical characteristics monitoring device for high-voltage circuit breakers): includes a box body, a box cover and a placement seat, the bottom of the box body is equipped with at least two pairs of rolling wheels through a rolling wheel height adaptive mechanism, the placement seat is connected to a height adjustment mechanism, each height adjustment mechanism includes a transverse rotating shaft, a rotating shaft and two columns, the transverse rotating shaft and the rotating shaft are respectively fixedly installed with a mutually meshing transmission gear, and the two ends of the transverse rotating shaft are respectively fixedly installed with a rotating disk provided with spiral convex teeth, a lifting column is slidably installed in each column, and a fixed tooth segment is fixed on the side wall of each lifting column, and each spiral convex tooth is meshed with the corresponding fixed tooth segment. This technical solution can use the placement seat as an operating platform after it is raised, which facilitates the connection operation of the line. At the same time, the rolling wheel can achieve height adaptation according to the actual situation, reducing the labor intensity of the operator. This technical solution solves the above problems;

[0005] However, the technical solution of the utility model still has some technical problems. When the high-voltage circuit breaker mechanical characteristics monitoring device is in use, there will be some potholes on the ground due to the harsh outdoor ground environment. When the rollers of the high-voltage circuit breaker mechanical characteristics monitoring device move to these potholes, since the roller diameter is fixed, when the rollers fall into the potholes, they will be stuck in the potholes, which will bring greater resistance to the movement of the device, making it impossible for the staff to push the high-voltage circuit breaker mechanical characteristics monitoring device to continue moving, affecting the transportation efficiency of the high-voltage circuit breaker mechanical characteristics monitoring device.

[0006] Therefore, a device for monitoring mechanical characteristics of a high voltage circuit breaker is proposed. Utility Model Content

[0007] The purpose of the utility model is to provide a high-voltage circuit breaker mechanical characteristic monitoring device to solve the problem that when the high-voltage circuit breaker mechanical characteristic monitoring device proposed in the above-mentioned background technology is used, due to the relatively harsh outdoor ground environment, there will be some potholes on the ground. When the roller of the high-voltage circuit breaker mechanical characteristic monitoring device moves to these potholes, since the roller diameter is fixed, when the roller sinks into the pothole, it will cause the roller to be stuck in the pothole, which brings greater resistance to the movement of the device, making it impossible for the staff to push the high-voltage circuit breaker mechanical characteristic monitoring device to continue moving, affecting the transportation efficiency of the high-voltage circuit breaker mechanical characteristic monitoring device.

[0008] To achieve the above purpose, the utility model provides the following technical solutions: a high-voltage circuit breaker mechanical characteristics monitoring device, including a main support:

[0009] A downward pressure regulating box is arranged at the lower end of the main body bracket, a lifting plate is slidably connected to the interior of the downward pressure regulating box, a transmission rod is fixedly installed on the upper end of the lifting plate, and an adjusting screw rod is rotatably connected to the upper end of the transmission rod, fixed mounting plates are arranged on both sides of the lower ends of the front and rear end surfaces of the main body bracket, a roller body is arranged on the side of the fixed mounting plate away from the main body bracket through a bearing, a telescopic adjusting bracket is arranged on the outer circular array of the roller body, a connecting pipe is fixedly installed on the lower end of the downward pressure regulating box, and the connecting pipe is connected to the roller body pipeline rotary joint;

[0010] A limiting connecting rod is fixedly installed on the upper end of the lifting plate, a connecting rod is fixedly installed on the upper end of the limiting connecting rod, a pushing rod is fixedly installed on the lower end of the connecting rod, an extrusion plate is welded and connected to the lower end of the pushing rod, a protective bracket is arranged outside the extrusion plate, air delivery pipes are arranged at both the front and rear ends of the protective bracket, and a protective airbag is installed at one end of the air delivery pipe.

[0011] Preferably, a convenient handle is installed on one side of the main frame, and the convenient handle is welded to the main frame.

[0012] Preferably, a screw is disposed outside the adjusting screw rod.

[0013] Preferably, a high-voltage switch mechanical characteristics tester body is provided at the upper end of the protection airbag, and the high-voltage switch mechanical characteristics tester body is connected to the main body bracket by sliding up and down through a slot.

[0014] Preferably, a bearing plate is installed at the lower end of the protection airbag, and the bearing plate is welded to the main frame.

[0015] Preferably, the telescopic adjustment bracket is slidably connected to the roller body via a slot, and the protective bracket is slidably connected to the extrusion plate up and down.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model installs an adjusting screw rod so that under the rotating operation of the staff, the transmission rod and the lifting plate can be pushed downward, thereby squeezing the hydraulic oil inside the downward pressure adjustment box, so that the hydraulic oil enters the inside of the roller body through the connecting pipe, and then the telescopic adjustment bracket inside the roller body is extended, thereby adjusting the stroke of the roller body rotating one circle, adjusting the diameter of the roller body, preventing the roller body from sinking into the potholes on the field ground, preventing the roller body from being stuck in the potholes, avoiding greater resistance to the movement of the device, so that the staff can easily push the device to move, and ensure the transportation efficiency of the device;

[0018] 2. The utility model installs a limit connecting rod and a connecting rod so that when the staff adjusts the diameter of the roller body, the pushing rod presses down the extrusion plate to press the air inside the protective bracket into the protective airbag through the air delivery pipe, so that the protective airbag expands, and the high-voltage switch mechanical characteristics tester body is protected to prevent the high-voltage switch mechanical characteristics tester body from being subjected to excessive vibration when moving on a bumpy road in the wild, thereby effectively extending the service life of the high-voltage switch mechanical characteristics tester body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional stereogram of a mechanical characteristic monitoring device for a high-voltage circuit breaker of the utility model;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of a high-voltage circuit breaker mechanical characteristic monitoring device of the utility model;

[0021] Figure 3 It is a half-section view of a mechanical characteristic monitoring device for a high-voltage circuit breaker according to the utility model;

[0022] Figure 4 It is an enlarged view of part A of the utility model.

[0023] In the figure: 1. Main bracket; 2. Downward pressure adjustment box; 3. Lifting plate; 4. Limit connecting rod; 5. Connecting rod; 6. Push rod; 7. Extrusion plate; 8. Load-bearing plate; 9. High-voltage switch mechanical characteristics tester body; 10. Connecting pipe; 11. Fixed mounting plate; 12. Roller body; 13. Telescopic adjustment bracket; 14. Convenient handle; 15. Air delivery duct; 16. Protective airbag; 17. Protective bracket; 18. Adjustment screw; 19. Transmission rod. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] See also Figure 1-4 The utility model provides an embodiment: a high-voltage circuit breaker mechanical characteristics monitoring device, including a main support 1:

[0026] The downward pressure regulating box 2 is arranged at the lower end inside the main support 1. The interior of the downward pressure regulating box 2 is connected with a lifting plate 3 for sliding up and down. A transmission rod 19 is fixedly installed on the upper end of the lifting plate 3. The upper end of the transmission rod 19 is rotatably connected with an adjusting screw 18. The adjusting screw 18 is installed so that it can push the transmission rod 19 and the lifting plate 3 to move downward under the rotation operation of the staff, thereby squeezing the hydraulic oil inside the downward pressure regulating box 2, so that the hydraulic oil enters the interior of the roller body 12 through the connecting pipe 10, and then the telescopic adjusting bracket 13 inside the roller body 12 is extended, thereby adjusting the stroke of the roller body 12 rotating one circle, and adjusting the roller The diameter of the main body 12 prevents the roller main body 12 from sinking into the potholes on the ground in the wild, prevents the roller main body 12 from being stuck in the potholes, avoids bringing greater resistance to the movement of the device, enables the staff to easily push the device to move, and ensures the transportation efficiency of the device. Both sides of the lower ends of the front and rear end surfaces of the main frame 1 are provided with fixed mounting plates 11, and the side of the fixed mounting plate 11 away from the main frame 1 is provided with the roller main body 12 through a bearing. The outer circular array of the roller main body 12 has a telescopic adjustment bracket 13, and the lower end of the downward pressure adjustment box 2 is fixedly installed with a connecting pipe 10, and the connecting pipe 10 is connected to the roller main body 12 pipeline rotary joint;

[0027] The limiting connecting rod 4 is fixedly installed on the upper end of the lifting plate 3, and the upper end of the limiting connecting rod 4 is fixedly installed with a connecting rod 5. The installation of the limiting connecting rod 4 and the connecting rod 5 allows the staff to adjust the diameter of the roller body 12 by pressing the pushing rod 6 down on the squeezing plate 7 to press the air inside the protective bracket 17 into the protective airbag 16 through the air delivery pipe 15, so that the protective airbag 16 expands, and the high-voltage switch mechanical characteristics tester body 9 is protected to prevent the high-voltage switch mechanical characteristics tester body 9 from being subjected to excessive vibration when moving on a bumpy road surface in the field, thereby effectively extending the service life of the high-voltage switch mechanical characteristics tester body 9. The lower end of the connecting rod 5 is fixedly installed with a pushing rod 6, and the lower end of the pushing rod 6 is welded and connected with the squeezing plate 7, and a protective bracket 17 is arranged on the outside of the squeezing plate 7, and air delivery pipes 15 are arranged at both ends of the front and rear of the protective bracket 17, and a protective airbag 16 is installed at one end of the air delivery pipe 15, and hydraulic oil is arranged inside the squeezing and pressing adjustment box 2.

[0028] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 A convenient handle 14 is installed on one side of the main bracket 1, and the convenient handle 14 is welded to the main bracket 1. The installation of the convenient handle 14 can facilitate the staff to push the device to move, making the device more user-friendly. A screw is arranged on the outside of the adjusting screw rod 18. A high-voltage switch mechanical characteristics tester body 9 is arranged on the upper end of the protective airbag 16. The high-voltage switch mechanical characteristics tester body 9 is connected to the main bracket 1 by sliding up and down through a slot. A bearing plate 8 is installed on the lower end of the protective airbag 16. The bearing plate 8 is welded to the main bracket 1. The telescopic adjustment bracket 13 is connected to the roller body 12 by sliding through a slot. The protective bracket 17 is connected to the extrusion plate 7 by sliding up and down.

[0029] Working principle: When in use, the staff holds the convenient handle 14 to move the device to the desired position. If there are many potholes on the road when the device is moving, the staff rotates the adjusting screw 18 to make the adjusting screw 18 push the transmission rod 19 and the lifting plate 3 to move downward, thereby squeezing the hydraulic oil inside the downward pressure adjustment box 2, so that the hydraulic oil enters the roller body 12 through the connecting pipe 10, and then the telescopic adjustment bracket 13 inside the roller body 12 is extended, thereby adjusting the stroke of the roller body 12 for one rotation, adjusting the diameter of the roller body 12, preventing the roller body 12 from sinking into potholes on the ground in the wild, preventing the roller body 12 from being stuck in potholes, avoiding greater resistance to the movement of the device, and allowing the staff to easily push the device to move Move to ensure the transportation efficiency of the device. At the same time, when the lifting plate 3 moves downward, it will drive the limit connecting rod 4 and the connecting rod 5 to move downward, so that the pushing rod 6 presses the extrusion plate 7 to press the air inside the protective bracket 17 into the protective airbag 16 through the air delivery pipe 15, so that the protective airbag 16 expands, and protects the high-voltage switch mechanical characteristics tester body 9 to prevent the high-voltage switch mechanical characteristics tester body 9 from being subjected to excessive vibration when moving on a bumpy road in the field, effectively extending the service life of the high-voltage switch mechanical characteristics tester body 9. When the device moves to the required position, the staff connects the line to the high-voltage switch mechanical characteristics tester body 9, and uses the high-voltage switch mechanical characteristics tester body 9 normally.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A high-voltage circuit breaker mechanical characteristic monitoring device, comprising a main frame (1), characterized in that: A downward pressure regulating box (2) is arranged at the lower end of the main support (1), and a lifting plate (3) is slidably connected to the interior of the downward pressure regulating box (2) in an upward and downward manner. A transmission rod (19) is fixedly installed on the upper end of the lifting plate (3), and an adjusting screw rod (18) is rotatably connected to the upper end of the transmission rod (19). Both sides of the lower ends of the front and rear end surfaces of the main support (1) are provided with fixed mounting plates (11). A roller body (12) is provided on the side of the fixed mounting plate (11) away from the main support (1) through a bearing, and a telescopic adjusting bracket (13) is provided on the outer circular array of the roller body (12). A connecting pipe (10) is fixedly installed on the lower end of the downward pressure regulating box (2), and the connecting pipe (10) is connected to the roller body (12) pipeline rotary joint; A limit connecting rod (4) is fixedly mounted on the upper end of the lifting plate (3); a connecting rod (5) is fixedly mounted on the upper end of the limit connecting rod (4); a propulsion rod (6) is fixedly mounted on the lower end of the connecting rod (5); an extrusion plate (7) is welded to the lower end of the propulsion rod (6); a protection bracket (17) is arranged outside the extrusion plate (7); air delivery pipes (15) are arranged at both the front and rear ends of the protection bracket (17); a protection airbag (16) is installed at one end of the air delivery pipe (15).

2. A high voltage circuit breaker mechanical characteristic monitoring device according to claim 1, characterized in that: A convenient handle (14) is installed on one side of the main frame (1), and the convenient handle (14) is welded to the main frame (1).

3. A high voltage circuit breaker mechanical characteristic monitoring device according to claim 1, characterized in that: The outside of the adjusting screw rod (18) is provided with a screw.

4. A high voltage circuit breaker mechanical characteristic monitoring device according to claim 1, characterized in that: A high-voltage switch mechanical characteristics tester body (9) is arranged at the upper end of the protection airbag (16), and the high-voltage switch mechanical characteristics tester body (9) is connected to the main frame (1) by sliding up and down via a slot.

5. A high voltage circuit breaker mechanical characteristic monitoring device according to claim 1, characterized in that: A bearing plate (8) is installed at the lower end of the protection airbag (16), and the bearing plate (8) is welded to the main frame (1).

6. A high voltage circuit breaker mechanical characteristic monitoring device according to claim 1, characterized in that: The telescopic adjustment bracket (13) is slidably connected to the roller body (12) via a slot, and the protection bracket (17) is slidably connected to the extrusion plate (7) up and down.

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