10kV trolley switch safety operating device

Abstract

The present invention relates to a 10kV trolley switch safety operating device, which has the following structure: a guide rail is installed on an operating table, a DC motor is installed on the guide rail, and the output shaft of the DC motor is connected to the 10kV trolley switch operating handle joint; a suction cup electromagnet and a travel switch are arranged on the side wall of one end of the operating table connected to the 10kV trolley switch; a transformer T1, a transformer T2, a motor control protection module and a time relay are arranged inside the operating table. The present invention eliminates the safety risks of operators when operating the trolley switch and improves the level of on-site safety management. It reduces labor intensity, saves working hours, shortens power outage time, improves operation safety and power supply reliability, and provides necessary guarantees for high-quality and efficient production.

Description

Technical Field

[0001] The invention relates to a safe operating device for a 10kV trolley switch of electric power equipment, which is a device capable of remotely electrically operating a 10kV trolley switch and belongs to the field of electric power application. Background Art

[0002] At present, when the 10kV trolley switch of the substation is pushed in and out from the test position to the working position, it is manually cranked using a crank handle. During operation, the operator must stand in front of the switch cabinet. Once the switch fails during operation (such as insulation reduction, omission of test short-circuit wiring, failure of the anti-misoperation device, and the trolley switch is closed in the circuit breaker closed state), the circuit breaker is likely to explode, seriously endangering personal safety.

[0003] In addition, traditional manual operation is labor-intensive. Generally, operators feel exhausted after operating for about 4 consecutive times and must be replaced. When the busbar power outage requires operation of multiple trolley switches, it is time-consuming and wastes labor. Summary of the invention

[0004] In view of the problems existing in the above-mentioned prior art, the present invention provides a 10kV trolley switch safety operating device, which solves the problems of unsafe on-site operation and time-consuming and labor-intensive operation of the 10kV trolley switch in the prior art.

[0005] The technical solution of the present invention is as follows:

[0006] A 10kV trolley switch safety operating device, a guide rail is installed on an operating table, a DC motor is installed on the guide rail, and the output shaft of the DC motor is connected to the 10kV trolley switch operating handle joint; a suction cup electromagnet and a travel switch are arranged on the side wall of one end of the operating table connected to the 10kV trolley switch; a transformer T1, a transformer T2, a motor control protection module and a time relay are arranged inside the operating table, the positive pole of the output end of the transformer T1 is respectively connected to the positive pole of the input of the motor control protection module and the positive pole of the input of the transformer T2, the positive pole of the output end of the motor control protection module is connected to the normally closed contact of the time relay and is connected to the positive pole of the action coil of the time relay through a rectifier bridge, the other end of the normally closed contact of the time relay is connected to the positive pole of the DC motor, the negative pole of the output end of the transformer T1 is respectively connected to the negative pole of the input end of the motor control protection module and the negative pole of the input end of the transformer T2, and the negative pole of the output end of the motor control protection module is respectively connected to the negative pole of the action coil of the time relay and the negative pole of the DC motor.

[0007] An emergency stop button is provided on the operating table, the positive pole of the output end of the transformer T1 is connected to the normally closed contact of the emergency stop button, the other end of the normally closed contact of the emergency stop button is connected to the normally open contact of the limit switch, and the other end of the normally open contact of the limit switch is respectively connected to the positive input pole of the motor control protection module and the positive input pole of the transformer T2.

[0008] The operating table is provided with a video camera, and a video monitoring module and a Bluetooth switch module are provided inside the operating table. The positive pole of the output end of the transformer T2 is connected to the video monitoring module and then to the positive pole of the input of the Bluetooth switch module. The negative pole of the output end of the transformer T2 is connected to the video monitoring module and then to the negative pole of the input of the Bluetooth switch module.

[0009] The operating table is provided with a closing button, an opening button and a switching switch. The forward control switch of the motor control protection module is connected to one end of the closing button, and the other end of the closing button is connected to the contact 2 of the switching switch. The contact 1 and the contact 3 of the switching switch are connected in parallel to the neutral line of the motor control protection module DL. The reverse control switch of the motor control protection module is connected to one end of the opening button, and the other end of the opening button is connected to the contact 2 of the switching switch.

[0010] The operating table is provided with a local control indicator light and a remote control indicator light, the positive poles of the local control indicator light and the remote control indicator light are connected to the positive pole of the transformer T1, the negative pole of the local control indicator light is connected to the contact 6 of the switching switch, the negative pole of the remote control indicator light is connected to the contact 8 of the switching switch, and the switching switch contacts 5 and 6 are connected in parallel and connected to the negative pole of the transformer T1.

[0011] A motor handle is arranged on the upper part of the DC motor, and an adsorption button is arranged at the end of the motor handle. The positive pole of the other output end of the transformer T1 is connected to one end of the adsorption button, and the other end of the adsorption button is respectively connected to the positive poles of the adsorption electromagnet YA1 and the adsorption electromagnet YA2, and the negative pole of the other output end of the transformer T1 is respectively connected to the negative poles of the adsorption electromagnets YA1 and YA2.

[0012] The motor output shaft and the 10kV trolley switch operating handle joint are connected by a universal sleeve.

[0013] The video camera transmits the on-site operation status to the mobile phone APP through the video WIFI module; the mobile phone APP is provided with a virtual closing button and a virtual opening button, the virtual closing button of the Bluetooth switch module is connected to the forward control switch of the motor control protection module, and the virtual opening button is connected to the reverse control switch of the motor control protection module, the neutral line of the Bluetooth switch module is connected to the contact 4 of the switching switch, and the contact 3 of the switching switch is connected to the neutral line of the motor control protection module after being connected in parallel with the contact 1.

[0014] The advantages and effects of the present invention are as follows:

[0015] A DC motor is installed on the rail to provide power output for the device; a DC voltage regulator transformer is installed in the operating table to provide a stable DC power supply for the entire system. The DC motor realizes forward, reverse, stop and overload protection functions through the motor control protection module. The DC step-down power supply reduces the power supply voltage to 12V DC voltage to power the Bluetooth switch module. When the switch is switched to the remote control position, the remote control function is realized. When the switch is switched to the local control position, the closing and opening buttons installed on the operating table are used to realize local operation. The time relay connected in series in the motor circuit is used to realize the timeout protection of the motor. The emergency stop button can be set to cut off the power supply of the motor at any time, stop the motor operation, and prevent damage to the equipment. Pressing the adsorption button energizes the suction cup electromagnet installed on the operating table to generate magnetic force, and the device is firmly adsorbed on the switch cabinet. Only when the device is in firm contact with the switch cabinet, the travel switch installed on the operating table is pressed, and the contact is connected, the motor circuit is connected. The motor output shaft and the 10kV trolley switch operating handle connector are connected with a universal sleeve, which is easy and quick to install. A video head is installed on the operating part frame to transmit the on-site operation status to the mobile phone APP through the video WIFI module.

[0016] The operating function of the control terminal is realized by controlling the Bluetooth switch module through a mobile phone APP. When the universal conversion switch is switched to the remote control position, the device can be remotely operated by pressing the opening and closing buttons on the mobile phone screen. At the same time, the mobile phone screen receives the video signal transmitted by the video head, so as to observe whether the device is operated in place and whether there are any problems such as jamming.

[0017] The 10kV trolley switch operating device eliminates the safety risks of operators when operating trolley switches and improves the level of on-site safety management. It reduces labor intensity, saves working hours, shortens power outage time, improves operation safety and power supply reliability, and provides necessary guarantees for high-quality and efficient production. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention.

[0019] Figure 2 It is a side structural schematic diagram of the present invention.

[0020] Figure 3 It is the schematic diagram of the secondary circuit of the present invention.

[0021] In the figure, 1. power interface, 2. power switch, 3. motor handle, 4. adsorption button, 5. universal sleeve, 6. suction cup electromagnet, 7. travel switch, 8. guide rail, 9. locking handle, 10. DC motor, 11. switching switch, 12. near control indicator light, 13. emergency stop button, 14. opening button, 15. closing button, 16. remote control indicator light, 17. operating table, 18. video camera. DETAILED DESCRIPTION

[0022] The specific structure of the present invention is described in detail below in combination with specific embodiments with reference to the accompanying drawings. Example

[0023] As shown in the figure, a 10kV trolley switch safety operating device, a guide rail 8 is installed on the operating table 17, a DC motor 10 is installed on the guide rail, and the DC motor output shaft is connected to the 10kV trolley switch operating handle joint by a universal sleeve 5; a suction cup electromagnet 6 and a travel switch 7 are arranged on the side wall of the end of the operating table connected to the 10kV trolley switch; a transformer T1, a transformer T2, a motor control protection module DL and a time relay SJ are arranged inside the operating table, the input end of the transformer T1 is connected to the AC220V power supply through the switch K1, and the output end of the transformer T1 is positive The positive poles are respectively connected to the positive input pole of the motor control protection module DL and the positive input pole of the transformer T2. The positive pole of the output end of the motor control protection module DL is connected to the normally closed contact of the time relay SJ and is connected to the positive pole of the action coil of the time relay through the rectifier bridge CQ. The other end of the normally closed contact of the time relay SJ is connected to the positive pole of the DC motor M. The negative pole of the output end of the transformer T1 is respectively connected to the negative pole of the input end of the motor control protection module DL and the negative pole of the input end of the transformer T2. The negative pole of the output end of the motor control protection module DL is respectively connected to the negative pole of the action coil of the time relay SJ and the negative pole of the DC motor.

[0024] An emergency stop button 13 is provided on the operating table, the positive pole of the transformer T1 output end is connected to the normally closed contact of the emergency stop button SB1, the other end of the normally closed contact of the emergency stop button SB1 is connected to the normally open contact of the limit switch SQ, and the other end of the normally open contact of the limit switch SQ is respectively connected to the positive input pole of the motor control protection module DL and the positive input pole of the transformer T2.

[0025] The operating table is provided with a video camera 18, and a video monitoring module and a Bluetooth switch module are provided inside the operating table. The positive pole of the output end of the transformer T2 is connected to the video monitoring module SP, and then connected to the positive pole of the input of the Bluetooth switch module LJ. The negative pole of the output end of the transformer T2 is connected to the video monitoring module SP, and then connected to the negative pole of the input of the Bluetooth switch module LJ.

[0026] The operating console is provided with a closing button 1115, an opening button 12 and a switching switch 11. The forward control switch K3 of the motor control protection module DL is connected to one end of the closing button SB2, and the other end of the closing button SB2 is connected to the contact 2 of the switching switch SBT. The contact 1 and the contact 3 of the switching switch SBT are connected in parallel to the neutral line of the motor control protection module DL. The reverse control switch K2 of the motor control protection module DL is connected to one end of the opening button SB3, and the other end of the opening button SB3 is connected to the contact 2 of the switching switch SBT.

[0027] The operating table is provided with a local control indicator light 12 and a remote control indicator light 16. The positive poles of the local control indicator light HL1 and the remote control indicator light HL2 are connected to the positive pole of the transformer T1, the negative pole of the local control indicator light HL1 is connected to the contact 6 of the switching switch SBT, the negative pole of the remote control indicator light HL2 is connected to the contact 8 of the switching switch SBT, and the contacts 5 and 6 of the switching switch SBT are connected in parallel and then connected to the negative pole of the transformer T1.

[0028] A motor handle 3 is arranged on the upper part of the DC motor, and an adsorption button 4 is arranged at the end of the motor handle. The positive pole of the other output end of the transformer T1 is connected to one end of the adsorption button SB, and the other end of the adsorption button SB is respectively connected to the positive poles of the adsorption electromagnet YA1 and the adsorption electromagnet YA2, and the negative pole of the other output end of the transformer T1 is respectively connected to the negative poles of the adsorption electromagnets YA1 and YA2.

[0029] The video camera transmits the on-site operation status to the mobile phone APP through the video WIFI module; the mobile phone APP is provided with a virtual closing button and a virtual opening button, the virtual closing button SB4 of the Bluetooth switch module LJ is connected to the forward control switch K3 of the motor control protection module DL, and the virtual opening button SB5 is connected to the reverse control switch K2 of the motor control protection module DL, the neutral line of the Bluetooth switch module LJ is connected to the contact 4 of the switching switch SBT, and the contact 3 of the switching switch SBT is connected in parallel with the contact 1 and then connected to the neutral line of the motor control protection module DL.

[0030] The operating table is made of 301 stainless steel with a thickness of 6 mm.

[0031] The guide rail is an SGR15 linear guide rail with a length of 200 mm. A locking handle with a locking function is provided on the guide rail slider.

[0032] The DC motor is of type 5D-90GN-24, with a rotation speed of 120 / min and a power of 90W.

[0033] The DC voltage stabilizing transformer is a QZ-720-24 type AC 220V to DC 24V transformer switching power supply.

[0034] The motor control protection module is a DL3-71724V DC motor forward and reverse control with overload, overcurrent and stall protection.

[0035] The DC step-down power supply is a XW-0936-12-36W 24V to 12V automatic step-down power supply.

[0036] The Bluetooth switch module is a FORVER-09 wireless remote control Bluetooth relay module.

[0037] The transfer switch is a LYW29-20 / 2 type forward and reverse combination three-speed two-stage.

[0038] The opening and closing buttons are HJS16A1-11 / D2 / P type self-resetting circular metal button switches with lights.

[0039] The time relay adopts H3Y-2 type 24V adjustable small timing delay controller, and the setting time is 25S.

[0040] The emergency stop button adopts a HS22MM type rotating self-locking metal button.

[0041] The adsorption button adopts HJS16A1-11 / D2 / Q type self-locking round metal button switch with light.

[0042] The suction cup electromagnet adopts a pair of YR-P191 24V suction cup electromagnets.

[0043] The travel switch adopts LXW5-11M one-open-one-close self-resetting travel switch.

[0044] The universal socket adopts a WN type 22-32mm quick socket.

[0045] The video WIFI module adopts the HD-1M high-definition WIFI wireless industrial viewing scope.

[0046] The mobile phone APP control program is composed of a Bluetooth switch module control APP and a video WIFI module transmission APP. The upper half of the mobile phone screen displays the graphics transmitted by the video head, and the buttons on the lower half can control the operation of the motor.

[0047] The working process of the present invention is as follows:

[0048] As shown in the figure, when the power interface 1 is connected to the power supply and the power switch 2 is turned on, the indicator light of the adsorption button 4 installed on the motor handle 3 is on, indicating that the adsorption circuit is normal. Connect the motor universal sleeve 5 to the 10kV trolley switch operating handle, push the operating table close to the 10kV trolley switch cabinet, press the adsorption button 4 on the motor handle 3, the suction cup electromagnet 6 is energized, and the magnetic force is generated to tightly adsorb the operating table on the 10kV trolley switch cabinet, and at the same time press the travel switch 7, turn on the motor control circuit, and press the locking handle 9 on the guide rail 8 to prevent the DC motor 10 from moving. At this time, the operation part is ready for operation.

[0049] Switch the transfer switch 11 to the local control position, the local control indicator light 12 lights up, check that the emergency stop button 13 is in the rotated-out position, press the opening button 14 or the closing button 15, and the motor runs to operate the trolley switch in the opening or closing direction.

[0050] Switch the switch 11 to the remote control position, the remote control indicator light 16 lights up, check that the emergency stop button 13 is in the rotated-out position, start the control terminal mobile phone APP, and by pressing the virtual opening button 17 or the virtual closing button 18 on the screen, the motor runs to operate the trolley switch in the opening or closing direction. At the same time, the display area 19 on the screen displays the on-site image transmitted by the video head 20 on the operating device.

[0051] like Figure 3 As shown, the secondary circuit principle of the present invention is:

[0052] Adsorption principle: switch K1 is closed, transformer T1 changes AC220V into DC24V to power the system, press the adsorption button SB, the suction cup electromagnets YA1 and YA2 are energized, and the device is adsorbed on the switch cabinet. When the device needs to be removed, press the adsorption button SB again, the suction cup electromagnet loses power and the device can be removed.

[0053] Proximity control principle: When switch K1 is closed and the device is reliably adsorbed, the limit switch SQ is closed, the motor control protection module DL is energized, and the switching switch SBT switches the proximity control position (1 position) and the contacts 1-2 are connected, so that the motor control protection module DL controls the neutral line, and the contacts 5-6 are connected. The proximity control indicator HL1, the closing button SB2, and the opening button SB3 are on. At this time, if the emergency stop button SB1 and the time relay SJ delay contact are in the closed position, press the closing button SB2 or press the opening button SB3, and the DC motor M will start to make the device perform opening and closing operations.

[0054] Remote control principle: K1 is closed, when the device is reliably adsorbed, the limit switch SQ is closed, the motor control protection module DL is energized, the transformer T2 is energized to convert DC24V into DC12V, the video module SP and the Bluetooth switch module LJ are energized, the switching switch SBT switches to the local control position (2nd position), the contacts 3-4 are connected, the motor control protection module DL controls the neutral line, the contacts 7-8 are connected, and the remote control indicator HL2 is on. At this time, if the emergency stop button SB1 is in the closed position with the time relay SJ delay contact, through the virtual closing button SB4 and the virtual opening button SB5 of the operating terminal mobile phone APP, the DC motor M runs to make the device open and close, and the video module SP transmits the image captured by the video camera on the operating device to the display screen on the operating terminal mobile phone APP.

[0055] Protection principle: Connection reliability protection, the motor circuit is connected only when the device is reliably adsorbed and the limit switch SQ is closed.

[0056] Control protection: Pressing the emergency stop button SB1 at any time can cut off the motor circuit and stop the operation process.

[0057] After the trolley switch is opened and closed, if the motor does not stop in time, the motor protection module DL will start to disconnect the motor through the motor stall protection of the motor control protection module DL, that is, the torque exceeds 15N·M (the measured normal operating torque is 10N·M).

[0058] Jam protection: When the trolley switch operation is stuck and the operating torque exceeds 15N·M (the measured normal operating torque is 10N·M), the motor jam protection is activated and the motor is disconnected.

[0059] Timeout protection: When the DC motor M starts, the coil of the time relay SJ connected in series in the motor circuit is energized and starts timing. If the motor runs for more than 25S (the measured normal operating time is 20S), the normally closed contact of the time relay SJ opens, cutting off the motor circuit.

[0060] The present invention realizes remote operation and electric operation functions in the operation of 10kV trolley switches, improves the safety of on-site operations, reduces operating labor intensity and saves operating time, and is widely praised by operators.

Claims

1. A 10kV trolley switch safety operating device, characterized in that A guide rail is installed on the operating table, and a DC motor is installed on the guide rail. The output shaft of the DC motor is connected to the joint of the operating handle of the 10kV trolley switch; a suction cup electromagnet and a travel switch are arranged on the side wall of one end of the operating table connected to the 10kV trolley switch; a transformer T1, a transformer T2, a motor control protection module and a time relay are arranged inside the operating table, the positive pole of the output end of the transformer T1 is respectively connected to the positive pole of the input of the motor control protection module and the positive pole of the input of the transformer T2, the positive pole of the output end of the motor control protection module is connected to the normally closed contact of the time relay and is connected to the positive pole of the action coil of the time relay through a rectifier bridge, the other end of the normally closed contact of the time relay is connected to the positive pole of the DC motor, the negative pole of the output end of the transformer T1 is respectively connected to the negative pole of the input end of the motor control protection module and the negative pole of the input end of the transformer T2, and the negative pole of the output end of the motor control protection module is respectively connected to the negative pole of the action coil of the time relay and the negative pole of the DC motor; The operating table is provided with an emergency stop button, the positive pole of the output end of the transformer T1 is connected to the normally closed contact of the emergency stop button, the other end of the normally closed contact of the emergency stop button is connected to the normally open contact of the limit switch, and the other end of the normally open contact of the limit switch is respectively connected to the positive input pole of the motor control protection module and the positive input pole of the transformer T2; The operating table is provided with a video camera, and a video monitoring module and a Bluetooth switch module are provided inside the operating table. The positive pole of the output end of the transformer T2 is connected to the video monitoring module, and then connected to the positive pole of the input of the Bluetooth switch module. The negative pole of the output end of the transformer T2 is connected to the video monitoring module, and then connected to the negative pole of the input of the Bluetooth switch module. The operating table is provided with a closing button, an opening button and a switching switch. The forward control switch of the motor control protection module is connected to one end of the closing button, and the other end of the closing button is connected to the contact 2 of the switching switch. The contact 1 and the contact 3 of the switching switch are connected in parallel to the neutral line of the motor control protection module DL. The reverse control switch of the motor control protection module is connected to one end of the opening button, and the other end of the opening button is connected to the contact 2 of the switching switch. The operating table is provided with a local control indicator light and a remote control indicator light, the positive poles of the local control indicator light and the remote control indicator light are connected to the positive pole of the transformer T1, the negative pole of the local control indicator light is connected to the contact 6 of the switching switch, the negative pole of the remote control indicator light is connected to the contact 8 of the switching switch, and the switching switch contact 5 and contact 6 are connected in parallel and then connected to the negative pole of the transformer T1; A motor handle is arranged on the upper part of the DC motor, and an adsorption button is arranged at the end of the motor handle. The positive pole of the other output end of the transformer T1 is connected to one end of the adsorption button, and the other end of the adsorption button is respectively connected to the positive poles of the adsorption electromagnet YA1 and the adsorption electromagnet YA2, and the negative pole of the other output end of the transformer T1 is respectively connected to the negative poles of the adsorption electromagnet YA1 and the adsorption electromagnet YA2; The output shaft of the DC motor and the operating handle joint of the 10kV trolley switch are connected by a universal sleeve; The video camera transmits the on-site operation status to the mobile phone APP through the video WIFI module; the mobile phone APP is provided with a virtual closing button and a virtual opening button, the virtual closing button of the Bluetooth switch module is connected to the forward control switch of the motor control protection module, and the virtual opening button is connected to the reverse control switch of the motor control protection module, the neutral line of the Bluetooth switch module is connected to the contact 4 of the switching switch, and the contact 3 of the switching switch is connected to the neutral line of the motor control protection module after being connected in parallel with the contact 1.

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