CN116165527A - Multipurpose corner sensor for measuring speed of sulfur hexafluoride circuit breaker - Google Patents

Abstract

The invention discloses a multipurpose angle sensor for measuring the speed of a sulfur hexafluoride circuit breaker, which is characterized in that it comprises: a support part, the support part is connected with a detection part, the detection part is connected with a connection part, the connection part and the support part They are respectively connected to the switch part; the connection part includes a connecting shaft, the connecting shaft is connected to a transition joint, the transition joint is connected to the switch part, and the connecting shaft is connected to the detection part; different types of circuit breakers can be connected to the angle sensor through the transition joint, which is convenient Maintenance personnel overhaul a variety of sensors; through the through-designed transition joints, the front and back can be connected to different circuit breaker joints, so that it can adapt to a variety of good circuit breaker joints of different sizes, greatly improving the versatility of the measuring device .

Description

A multi-purpose angle sensor for speed measurement of sulfur hexafluoride circuit breaker

technical field

The invention relates to the field of power equipment maintenance, in particular to a multipurpose rotation angle sensor used for speed measurement of sulfur hexafluoride circuit breakers.

Background technique

For 110KV and above high-voltage circuit breakers, its mechanical characteristics are the key to ensure normal operation. When the mechanical characteristics of the high-voltage circuit breaker do not meet the requirements, it will cause grid accidents such as excessive arcing time and phase-to-phase disconnection. In severe cases, the circuit breaker will explode. . High-voltage circuit breakers need to be regularly tested for mechanical characteristics, including opening and closing time, speed, etc., in order to prevent or detect circuit breaker failures and abnormalities. In the routine inspection, the mechanical characteristic test is carried out on SF6DAU South Road to ensure the normal operation of the circuit breaker.

In the prior art, when carrying out the speed test of the SF6 circuit breaker, the method of testing the linear sensor or the rotating angle sensor is mostly used. For compact circuit breakers or GIS circuit breakers, there is often no suitable location for installing linear sensors, but when producing and processing the spindle, there is a special M6 to M12 in the center of the spindle end of the breaker arm spindle for electroplating. For wire holes of different sizes, it is more appropriate to use a rotation angle sensor at this time. However, the size and style of the main shaft end of different manufacturers are different. When the switch manufacturer tests the mechanical characteristics of the circuit breaker in the field, it can use a specially customized angle sensor for easy installation. Carrying out mechanical performance testing of circuit breakers has caused a lot of trouble.

For example, a "circuit breaker crank arm rotating shaft speed measuring device" disclosed in Chinese patent literature, its notification number: CN107860936A, discloses a fixed plate, an angle sensor is installed in the middle of the fixed plate, and the rotating shaft of the angle sensor is coaxial A connecting shaft extending through the side wall of the beam into the crank box is connected, and the connecting shaft is coaxially connected with the rotating shaft of the crank arm on the crank box, but this scheme is also affected by different dimensions.

Contents of the invention

In order to solve the problem in the prior art that it is difficult to install a rotation angle sensor in the test of mechanical characteristics due to the different sizes of the ends of transmission connecting rods from different manufacturers, the present invention provides a multi-purpose rotation angle sensor for measuring the speed of sulfur hexafluoride circuit breakers. A transition joint is provided between the connecting shaft of the rotation angle sensor and the crank arm of the circuit breaker, which ensures the versatility of the rotation angle sensor and reduces the troubles of on-site measurement of dimensions and selection of different rotation angle sensors.

In order to achieve the above object, the present invention provides the following technical solutions:

A multi-purpose angle sensor for measuring the speed of a sulfur hexafluoride circuit breaker, comprising: a support part, the support part is connected with a detection part, the detection part is connected with a connection part, and the connection part and the support part are respectively connected with a switch part;

The connection part includes a coupling shaft connected with a transition joint, the transition joint is connected with the switch part, and the coupling shaft is connected with the detection part. The support part is used to fix the detection part and the switch part, and the connection part is used to connect the detection part into the switch part. The detection part is adapted to different switch parts through the coupling shaft and the transition joint, and the different switch parts are connected through the transition joint. It is connected with the detection part, which is convenient for the detection part to detect different switch parts, so that there is no need to use a detection part specially adapted to it for different switch parts, and the operation and maintenance efficiency of maintenance personnel is improved.

Preferably, the transition joint includes a first connection part and a second connection part, the second connection part penetrates through the first connection part; the second connection part is fixedly connected to the coupling shaft, and the first connection part includes a magnet. Connect the switch part through the first connection part, and connect the detection part through the second connection part, so as to connect the detection part into the switch part; at the same time, connect the switch part through the second connection part, and connect the second connection part The position passing through the first connecting part is connected with the coupling shaft, so as to realize the communication between the switch part and the detecting part only through the second connecting part; through the second connecting part through the design, the forward and reverse functions of the transition joint are realized.

Preferably, the first connecting part includes a connecting plate, and the connecting plate is provided with a plurality of bolt grooves with unequal spacing, and the bolt grooves are symmetrically arranged up and down; the second connecting part includes a hollow cylinder, and the hollow cylinder is provided with vertically arranged bolt holes . The bolt groove is located on the front end of the connecting plate and extends backward to the rear end of the connecting plate. The shape of the connecting plate is circular, and the opening of the bolt groove faces the circumference and extends toward the center of the circle. The end surface is fixedly connected with the second connection part, the hollow cylinder is fixedly connected to the rear end surface of the connection plate, the center of the hollow cylinder coincides with the center of the connection plate, and at the same time, there are bolt holes on the outer edge of the hollow cylinder at the rear side of the connection plate. The bolt hole is radially perpendicular to the hollow cylinder, and the bolt hole runs through the outer end wall of the hollow cylinder to connect the interior of the hollow cylinder with the outside; the magnet is fixedly connected to the front end surface of the connection plate. The switch part can be fixed through the hollow cylinder, or the switch part can be fixed through the magnet, and at the same time, the coupling shaft can be fixed through the hollow cylinder, so as to realize the connection of different types of switch parts.

Preferably, the hollow cylinder runs through the center of the connection plate and communicates with the front and rear ends of the connection plate; the bolt grooves are symmetrically arranged, and the number of bolt grooves on one half of the connection plate is more than that on the other half. Bolt grooves are arranged symmetrically up and down, and the number of bolt grooves on the right side of the connecting plate is more than the number of bolt grooves on the left side of the connecting plate; the hollow cylinder runs through the connecting plate and connects the front and back of the connecting plate, and the hollow cylinder is far away from the connecting plate. An adaptation control is provided at one end of the end face, the diameter of the adaptation hole is larger than the hollow cylinder, the adaptation hole and the bolt hole are arranged at right angles, the adaptation hole and the hollow cylinder are arranged concentrically, and the bolt hole is located on the radial outer edge of the adaptation hole. It can be fixed through the cooperation of the adapter hole and the bolt hole when it is turned over to use, and it can connect the joints of the switch part with different diameters.

Preferably, the support part includes a universal bracket connected with the switch part, the universal bracket is connected with a clamp, and the clamp is fixedly connected with the detection part. One end of the universal bracket is hinged to the outer end of the switch part, and the other end of the universal bracket is hinged to the clamp. At the same time, the middle part of the universal bracket is provided with a rotating shaft, which can adjust the position of the detection part according to needs, and the clamp is connected to the detection part. The detection unit can be fixed to the outside of the switch unit according to the size of the switch unit.

Preferably, the switch part includes a switch body connected to the support part; the switch part includes a switch arm connected to the transition joint. The detection part is fixed on the outer end surface of the switch body through the support part, and the detection part can be connected with the switch crank arm through the transition joint, so that the detection part can be used when the size of the switch part is different.

Preferably, the detection part includes a rotation angle sensor, and the two ends of the rotation angle sensor are respectively connected to the support part and the coupling shaft; both the transition joint and the coupling shaft are aluminum alloy. The rotation angle sensor is connected with a circuit breaker tester, which is used to control the on-off of the circuit breaker and detect the time signal; the angle monitoring can be carried out through the rotation angle sensor, and then the speed measurement can be realized.

The present invention has the following advantages:

(1) It is possible to connect different types of circuit breakers and angle sensors through transition joints, which is convenient for maintenance personnel to overhaul various sensors; (2) Through the through-designed transition joints, the front and back of different circuit breaker joints can be connected. This makes it possible to adapt to a variety of good circuit breaker joints of different sizes, and greatly improves the versatility of the measuring device.

Description of drawings

The drawings in the following description are only exemplary, and those skilled in the art can also obtain other implementation drawings according to the provided drawings without creative work.

Fig. 1 is a schematic diagram of the installation structure of the rotation angle sensor in the present invention.

Fig. 2 is a schematic diagram of the structure of the transition joint in the present invention.

Fig. 3 is a schematic diagram of the installation structure of the disc joint type circuit breaker in the present invention.

Fig. 4 is a schematic diagram of the installation of the spline joint type circuit breaker in the present invention.

In the picture:

1-switch body; 2-universal bracket; 3-fixture; 4-angle sensor; 5-coupling shaft; 6-switch arm; 7-bolt slot; 8-connection plate; 9-hollow cylinder; 10-adapt Holes; 11-bolt holes; 12-transition joints; 13-couplings.

Detailed ways

The implementation of the present invention is described below by specific specific examples. Based on the examples in the present invention, all other examples obtained by those of ordinary skill in the art without making creative work all belong to the protection scope of the present invention. .

As shown in Figure 1, in a preferred embodiment, the present invention discloses a multipurpose angle sensor for measuring the speed of a sulfur hexafluoride circuit breaker, comprising: a switch body 1 connected to a universal bracket 2. The universal bracket 2 is connected with a clamp 3 , and the clamp 3 is connected with a rotation angle sensor 4 . One end of the rotation angle sensor 4 is connected with the fixture, the other end of the rotation angle sensor is connected with the coupling shaft 5, one end of the coupling shaft 5 is connected with the rotation angle sensor, the other end of the coupling shaft is connected with a transition joint 12, and one end of the transition joint 12 is connected with the coupling shaft , the other end of the transition joint is connected to the switch crank arm 6, and the transition joint is fixedly connected to the circuit breaker crank arm disc or spline through magnets and bolts. The switch arm is used to control the cylinder and contacts of the sulfur hexafluoride circuit breaker to perform the opening action.

As shown in Figure 2, the transition joint includes a connection plate 8, the connection plate 8 is connected with a hollow cylinder 9, a magnet is arranged on the front end, and the transition joint is provided with four bolt grooves 7, and the bolt groove 7 includes two grooves arranged symmetrically up and down , there are two horizontally arranged horizontal grooves between the two symmetrically arranged grooves up and down, and the distance between the two symmetrically arranged grooves up and down is smaller than the distance from one of the horizontal grooves to the other horizontal groove; there is a raised joint on the back of the connecting plate . The rear end of the transition joint is a hollow cylinder 9, and the hollow cylinder 9 is connected with the spline circuit breaker joint. The hollow cylinder is connected with the coupling shaft. An adapter hole 10 is provided at the rear side of the hollow cylinder far away from the connection plate. The adapter hole 10 is a round hole with a diameter larger than the hollow cylinder. The bolt hole 11 of the end wall is radially perpendicular to the adapter hole.

When in use, as shown in Figure 3, the front end of the connecting plate abuts against the disc interface of the disc interface type circuit breaker, and the magnet will attract the connecting plate to the disc interface, and the disc interface is provided with round holes, bolts Go through the round hole and the bolt groove, and fix the connecting disc on the disc interface, while the coupling shaft passes through the hollow cylinder and uses the end to abut against the disc interface, and also uses the bolt to pass through the bolt hole and enter the adapter hole. And the end of the bolt is abutted against the outer end surface of the coupling shaft, and the coupling shaft and the transition joint are fixed; the other end of the coupling shaft is connected with a coupling, and the coupling is connected with a rotation angle sensor. Thereby, it is realized to connect the disc connection type circuit breaker and the rotation angle sensor through the transition joint.

As shown in Figure 4, insert the spline connector of the spline type circuit breaker into the adapter hole, insert the bolt through the bolt hole into the adapter hole, and make the end of the bolt abut against the outer end surface of the spline connector; The coupling shaft penetrates deep into the hollow cylinder. Therefore, the connection between the spline type circuit breaker and the rotation angle sensor is realized through the transition joint.

After the crank arm moves, the crank arm drives the coupling shaft to rotate, and the rotation of the coupling shaft drives the rotation angle sensor to work. The rotation angle sensor will detect the angle and send the angle information to the circuit breaker tester connected to the rotation angle sensor. The circuit breaker tester will respond according to the angle and time for velocity measurements.

Both the transition joint and the coupling shaft are made of aluminum alloy.

Although the present invention has been described in detail with general descriptions and specific examples above, it is obvious to those skilled in the art that some modifications or improvements can be made on the basis of the present invention. Therefore, the modifications or improvements made on the basis of not departing from the spirit of the present invention all belong to the protection scope of the present invention.

Claims (7)

1. A multipurpose angle sensor for sulfur hexafluoride circuit breaker speed measurement, comprising: the support part is connected with the detection part, the detection part is connected with the connecting part, and the connecting part and the support part are respectively connected with the switch part;

the connecting portion comprises a connecting shaft, the connecting shaft is connected with a transition joint, the transition joint is connected with the switch portion, and the connecting shaft is connected with the detecting portion.

2. The multipurpose angle sensor for measuring speed of sulfur hexafluoride circuit breaker of claim 1 wherein the transition joint includes a first connection and a second connection, the second connection being in communication with the first connection; the second connecting portion is fixedly connected with the connecting shaft, and the first connecting portion comprises a magnet.

3. The multipurpose angle sensor for measuring speed of sulfur hexafluoride circuit breaker according to claim 2, wherein the first connection part includes a connection disc provided with a plurality of bolt slots having unequal intervals, the bolt slots being arranged symmetrically up and down; the second connecting portion includes a hollow cylinder provided with vertically arranged bolt holes.

4. A multi-purpose rotation angle sensor for measuring speed of sulfur hexafluoride breaker according to claim 3 wherein the hollow cylinder penetrates through the center of the connecting disc and communicates with the front and rear end faces of the connecting disc; the bolt grooves are symmetrically arranged, and the number of the bolt grooves positioned on one half of the connecting disc is more than that of the other half.

5. The multipurpose angle sensor for measuring speed of sulfur hexafluoride circuit breaker of claim 2, 3 or 4 wherein the support portion includes a universal bracket connected to the switch portion, the universal bracket being connected to a clamp, the clamp being fixedly connected to the sensing portion.

6. The multipurpose angle sensor for measuring speed of sulfur hexafluoride circuit breaker of claim 5 wherein the switch section includes a switch body connected to the support section; the switch part comprises a switch crank arm which is connected with the transition joint.

7. The multipurpose angle sensor for measuring speed of sulfur hexafluoride circuit breaker of any one of claims 1 to 6 wherein the sensing section includes an angle sensor, both ends of which are connected with the supporting section and the coupling shaft, respectively; the transition joint and the connecting shaft are both made of aluminum alloy.

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