CN-115325989-B - Angle sensor mounting structure

CN115325989BCN 115325989 BCN115325989 BCN 115325989BCN-115325989-B

Abstract

The invention relates to the technical field of isolating switches, in particular to an angle sensor mounting structure. The angle sensor mounting structure comprises a shell, a transmission shaft is rotatably assembled on the shell, a crank arm is fixed on the transmission shaft, the angle sensor mounting structure further comprises a fixing frame fixed on the shell, the angle sensor comprises a main rotating shaft, the main rotating shaft and the transmission shaft are coaxially and alternately arranged, a first transmission part is arranged on the main rotating shaft, a second transmission part is arranged on the transmission shaft and is in transmission connection with the first transmission part, the second transmission part is fixed on the end face of the transmission shaft through a screw, a reinforcing rib is arranged on the crank arm, the second transmission part is provided with a rotation stopping flanging turned towards the crank arm, and a notch matched with the reinforcing rib in a rotation stopping mode is formed in the rotation stopping flanging. Because the angle sensor is fixed when measuring the rotation angle of transmission shaft, consequently the pencil that is connected with the angle sensor is fixed for the pencil is difficult to damage.

Inventors

CHEN LIANG
YANG WEIGUO
ZHAO YING
MA HUIZHEN
ZHAO XIANCHEN
LI XIAONAN
ZHAI BINGPU
GAO WENQIANG
CHEN FUGUO
CAI JIE
SUN PENG
WANG DAWEI
LI ZHONGQI
ZHANG HENG
SHI CHAOMING
ZHANG PEIJIE

Assignees

平高集团有限公司
平高集团有限公司

Dates

Publication Date: 20260421
Application Date: 20220803
Priority Date: 20220610

Claims (5)

1. The angle sensor mounting structure comprises a shell, a transmission shaft is rotatably assembled on the shell, a turning arm is fixed on the transmission shaft, and the angle sensor mounting structure is characterized by further comprising a fixing frame fixed on the shell, wherein the angle sensor is fixed on the fixing frame and comprises a main rotating shaft which is coaxial with the transmission shaft and is arranged at intervals, a first transmission piece is arranged on the main rotating shaft, a second transmission piece is arranged on the transmission shaft and is in transmission connection with the first transmission piece so as to drive the main rotating shaft to rotate when the transmission shaft rotates, further measurement of a rotation angle of the angle sensor is achieved, the second transmission piece is fixed on the end face of the transmission shaft through a screw, a reinforcing rib is arranged on the turning arm, a rotation stopping flange turned towards the turning arm is provided with a notch matched with the reinforcing rib in a rotation stopping mode, one of the first transmission piece and the second transmission piece is provided with a deflector rod extending along the axial direction of the transmission shaft, and the other one of the first transmission piece and the second transmission piece is provided with a jack matched with the deflector rod.
2. The angle sensor mounting structure according to claim 1, wherein the housing is provided with a ring table coaxially arranged with the transmission shaft, and the fixing frame comprises a hoop, and is fixed on the ring table through the hoop.
3. The angle sensor mounting structure according to claim 2, wherein the anchor ear is provided with a fixing flange arranged closely to the housing, the fixing flange is provided with a fixing hole, the housing is provided with a threaded hole, and the fixing flange is fixed to the housing by a screw.
4. The angle sensor mounting structure according to claim 1, wherein a shield for protecting the angle sensor is fixed to the fixing frame.
5. The angle sensor mounting structure according to claim 1, wherein the fixing frame is an arc-shaped frame, and fixing lugs for fixing the angle sensor are arranged on the arc-shaped frame.

Description

Angle sensor mounting structure Technical Field The invention relates to the technical field of isolating switches, in particular to an angle sensor mounting structure. Background With the development of the economy in China, the living standard of residents is increased, the electricity consumption is increased, the number of power supply lines and substations is increased, and the operation and maintenance personnel work is heavy. The requirements of a large number of electric equipment on the power supply reliability are higher and higher, and once the power transformation equipment is abnormal, line power failure and system paralysis can be caused. The isolating switch is an important device of a transformer substation and comprises a shell, a moving contact and an operating mechanism, wherein the moving contact and the operating mechanism are arranged in the shell, and the operating mechanism drives the moving contact of the three-phase fracture structure to rotate through a transmission shaft so as to realize switching on and off of the isolating switch. When the disconnecting switch is not in place, the contact area of the contact is reduced, so that the contact resistance is increased, the temperature of the contact point is increased, the contact is ablated, and the electrical equipment is damaged. Therefore, it is particularly important how to accurately detect the position of the opening and closing of the isolating switch. The movable contact and the fixed contact of the isolating switch are arranged in the shell, and the actual opening and closing positions can be judged through the observation holes and the opening and closing indicators, but the positions need to be observed by operation and maintenance personnel of an electric company on site. Because the distribution of the transformer substations is relatively scattered, and the unattended transformer substations are more and more far away from a power supply company, a switching operation work ticket needs to be filled in each switching operation, and at least two workers are dispatched to the site to check the opening and closing state of the isolating switch, a large amount of manpower and material resources are wasted, and the whole switching operation process is long. The Chinese patent publication No. CN209246977U discloses an isolating switch device, which comprises a shell, wherein a transmission shaft is rotatably assembled on the shell, a crank arm is fixed on the transmission shaft, a sensor mounting assembly is fixed on the crank arm, a sensor is fixed on the sensor mounting assembly, when the transmission shaft rotates, the sensor on the crank arm rotates along with the rotation of the transmission shaft, and a wire harness connected with the sensor moves along with the rotation of the sensor. Because the wire harness connected with the sensor can move along with the sensor, the wire harness is easy to damage, and the sensor is affected to transmit information. Disclosure of Invention The invention aims to provide an angle sensor mounting structure, which solves the problem that a wire harness connected with a sensor in the prior art can move along with the sensor to easily cause damage to the wire harness. In order to achieve the above purpose, the technical scheme of the angle sensor mounting structure of the invention is as follows: The angle sensor mounting structure comprises a shell, a transmission shaft is rotatably assembled on the shell, a crank arm is fixed on the transmission shaft, the angle sensor mounting structure further comprises a fixing frame fixed on the shell, the angle sensor comprises a main rotating shaft, the main rotating shaft and the transmission shaft are coaxially and alternately arranged, a first transmission part is arranged on the main rotating shaft, a second transmission part is arranged on the transmission shaft, the first transmission part and the second transmission part are in transmission connection together so as to drive the main rotating shaft to rotate when the transmission shaft rotates, further, the angle sensor can measure the rotation angle, the second transmission part is fixed on the end face of the transmission shaft through a screw, the crank arm is provided with a reinforcing rib, the second transmission part is provided with a rotation stopping flanging turned towards the crank arm, and a notch matched with the reinforcing rib in a rotation stopping mode is formed in the rotation stopping flanging. The isolating switch has the beneficial effects that when the isolating switch is in use, the transmission shaft rotates to drive the main rotating shaft of the angle sensor to rotate, so that the angle sensor can measure the rotation angle of the transmission shaft, and the isolating switch is in a switching-off state or a switching-on state. Because angle sensor is fixed when measuring the rotation angle of transmission shaft, consequently the pencil of being connected with ang