High energy working state conversion device

Abstract

The present invention discloses a high-energy working state conversion device, including a high-voltage actuator for converting working states through knife switch rotation, a main transmission shaft coaxially connected to the knife switch of the high-voltage actuator to drive the knife switch to rotate, a low-voltage drive mechanism connected to the main transmission shaft through a turbine coupling, and a detection component arranged on the low-voltage drive mechanism for detecting the rotation state and position of the knife switch. The present invention realizes accurate switching of three working states by setting a coaxial double knife switch component corresponding to a wiring contact component in the high-voltage actuator, perfectly adapts to the actual application requirements of rail transit maintenance, does not increase the complexity of operation, ensures system safety and reliability, and uses the design of the turbine coupling to ensure the reliability of phase locking. It also introduces a detection component to detect the rotation angle, circumferential rotation position, knife switch position and other aspects to improve the effectiveness and reliability of phase monitoring, thereby improving the performance of the device.

Description

Technical Field

[0001] The present invention relates to rail transit operation and maintenance auxiliary equipment, and in particular to a high-energy working state conversion device. Background Art

[0002] In the locomotive operation and maintenance process of the subway and large railway fields of rail transit, it involves changing the connection relationship between the main contact network and the maintenance contact network, and between the maintenance contact network and the ground wire. Therefore, it is necessary to convert between the two connection relationships and the three working states of disconnection, which is related to the safety of personnel, equipment, etc. during the maintenance and servicing process. Therefore, this kind of high-energy working state conversion device is designed specifically.

[0003] The conventional solution at present is to use a two-position switch or a three-position switch for switching, but there are obvious shortcomings in practical applications:

[0004] For two-station switches, since they only have two working states, they cannot completely meet the needs of practical applications. When using them, an additional isolating switch must be configured. However, the addition of an isolating switch will cause the two switches to have four working states, one of which requires manual operation to avoid. On the one hand, it increases the complexity of actual operation and introduces control risks, and on the other hand, it reduces the reliability and safety of the system. In addition, the existing two-station switches all use a copper belt to drive the switch arm to rotate to ensure the flexibility and maneuverability of the switch operation, but the copper belt used is composed of multiple copper strips, and there are gaps between the copper strips, which will cause impedance imbalance problems, and even arcing safety problems during use.

[0005] For three-position switches, most of them are realized by combining two conventional two-position switches and rotating synchronously with dual motors. There is also the problem of copper belt reliability caused by the copper belt driving the switch arm to rotate, and there is also the problem of motor synchronization driven by dual motors. In addition, due to the direct drive form of dual motors, a locking component needs to be added to its structure to assist in solving the problem of phase determination, and additional mechanical fatigue and reliability problems of the locking component are also generated.

[0006] Therefore, improvement is urgently needed. Summary of the invention

[0007] In view of the problems existing in the above-mentioned prior art, the present invention provides a high-reliability and high-safety large-energy working state conversion device.

[0008] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0009] A high-energy working state conversion device comprises a high-voltage actuator for converting working states by rotating a knife switch, a main transmission shaft coaxially connected to the knife switch of the high-voltage actuator to drive the knife switch to rotate, a low-voltage drive mechanism connected to the main transmission shaft through a turbine coupling, and a detection component arranged on the low-voltage drive mechanism for detecting the rotation state and position of the knife switch, wherein the detection component transmits the collected signal to a host computer through bus communication;

[0010] The high-voltage actuator includes a support plate, a pair of rotating support seats made of insulating material arranged on the support plate, a coaxial double knife switch assembly made of conductive material rotatably arranged between the pair of rotating support seats, four insulator assemblies arranged on the support plate and matching the position of the coaxial double knife switch assembly, and a wiring contact assembly arranged at the upper end of the insulator assembly and used to close the coaxial double knife switch assembly rotated to a specified position, wherein the main transmission shaft is coaxially connected to the coaxial double knife switch assembly, and the two wiring contact assemblies corresponding to one knife switch in the coaxial double knife switch assembly independently form a first contact and a second contact respectively, and the two wiring contact assemblies corresponding to another knife switch in the coaxial double knife switch assembly are connected through a bridging guide plate to form a third contact, and the coaxial double knife switch assembly realizes the conversion of three working states of disconnection, connection between the first contact and the third contact, and connection between the second contact and the third contact through rotation.

[0011] Specifically, the coaxial double knife gate assembly includes a first knife gate seat and a second knife gate seat coaxially connected by a conductive connecting shaft, and a first gate piece and a second gate piece fixedly arranged on the first knife gate seat and the second knife gate seat respectively, wherein the first gate piece and the second gate piece are both closed by contacts with the wiring contact assembly at the corresponding position, the first knife gate seat is transmission-connected to the main transmission shaft and rotationally connected to a rotating support seat through the transmission input shaft, and the second knife gate seat is rotationally connected to another rotating support seat through a rotating connecting piece.

[0012] Specifically, the main transmission shaft includes an input head, a transmission rod, a rotating connection part and a transmission head which are integrally connected in sequence, the input head is used to connect the turbine coupling, the transmission rod is used to transmit rotational power, the rotating connection part is rotatably connected to the through hole opened on the rotating support seat through an insulating bearing, and the transmission head is used for coaxial transmission connection to the first knife gate seat; the transmission head is arranged in a polygonal column shape, and a polygonal hole matching its shape is opened on one side of the first knife gate seat corresponding to the transmission head.

[0013] Specifically, the low-voltage drive mechanism includes a frame, a motor mounted on the frame as the power of the low-voltage end, a primary reducer connected to the motor, a secondary reducer connected to the primary reducer, a first synchronous wheel arranged on the first output shaft of the secondary reducer, an indicating synchronous wheel arranged on the frame and connected to the first synchronous wheel through a synchronous belt, and a rotating indicating disk arranged on the indicating synchronous wheel and coaxially rotating for intuitively indicating the rotation position, wherein the end of the first output shaft of the secondary reducer is connected to a turbine coupling, and the second output shaft of the secondary reducer is connected to a detection component.

[0014] Specifically, the turbine coupling includes a first coupling block and a second coupling block which are clamped with each other, and a turbine transmission block clamped between the first coupling block and the second coupling block, the first coupling block is used to connect the first output shaft of the secondary reducer, and the second coupling block is used to connect the main transmission shaft; the first coupling block includes a coupling sleeve body having a through hole for accommodating the shaft, and a plurality of coupling transmission parts which are circumferentially evenly distributed at one end of the coupling sleeve body, and there is a gap between the end of the coupling transmission part close to the through hole and the through hole; the structure of the second coupling block is the same as that of the first coupling block; the turbine transmission block includes a flat cylindrical base body whose size matches the size of the gap between the coupling transmission part and the through hole, a plurality of transmission tooth blocks which are circumferentially evenly distributed on the outer side of the base body, and a stop protrusion arranged on the axial end face of the transmission tooth block, the thickness of the transmission tooth block and the base body matches the thickness of the coupling transmission part, and the side surface of the transmission tooth block matches the side shape of the coupling transmission part.

[0015] Specifically, the number of the transmission gear blocks is twice the number of the coupling transmission parts on the first coupling block, the transmission gear blocks and the coupling transmission parts are arranged at intervals, and the side surfaces of the transmission gear blocks and the side surfaces of the coupling transmission parts are in contact with each other.

[0016] Furthermore, the first output shaft of the first-stage reducer is transmission-connected to the input end of the second-stage reducer, and a hand-driven mechanism is also provided on the second output shaft of the first-stage reducer. The hand-driven mechanism includes a hand-driven bracket connected to the housing of the first-stage reducer, a speed-increasing wheel arranged on the hand-driven bracket and transmission-connected to the second output shaft of the first-stage reducer, and a handle connector for an external handle fixedly extended from the shaft of the speed-increasing wheel.

[0017] Specifically, the detection component includes a detection end bracket arranged in the frame, a detection transmission shaft arranged on the detection end bracket and connected to the second output shaft of the secondary reducer and rotating synchronously with the main transmission shaft, an electromagnetic encoder arranged at one end of the detection transmission shaft for monitoring the rotation angle, a stroke detector arranged on the detection end bracket corresponding to the side of the detection transmission shaft for monitoring the circumferential rotation position, and a photoelectric sensor arranged on the side of the frame close to the high-voltage actuator for monitoring the position of the knife switch, wherein the signals collected by the electromagnetic encoder, the stroke detector and the photoelectric sensor are transmitted to the host computer through bus communication.

[0018] Specifically, the travel detector includes three position triggers installed on the detection end bracket and arranged around the detection transmission shaft to correspond to three different working status positions, and a convex portion arranged on the side of the detection transmission shaft for triggering the position trigger at the corresponding working status position; the position trigger includes a trigger bracket connected to the detection end bracket, a guide cavity arranged on the side of the trigger bracket facing the detection transmission shaft, a guide rod arranged in the guide cavity through a spring and in contact with the detection transmission shaft, and a micro switch arranged on the trigger bracket and linked to the guide rod.

[0019] Furthermore, a hot backup mechanism is also provided on the detection end bracket, which is synchronously connected to the detection transmission shaft. The hot backup mechanism includes a detection driven shaft synchronously connected to the detection transmission shaft, a backup electromagnetic encoder arranged at one end of the detection driven shaft, and a backup stroke detector arranged on the side of the detection driven shaft.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (1) The present invention sets a coaxial double knife switch assembly in the high-voltage actuator to enable the two knife switches to achieve synchronous rotation under the condition of a single power source. With the corresponding position design of the four wiring contact assemblies, accurate switching of three working states is achieved on the basis of ensuring uniform energy transmission, which perfectly adapts to the actual application requirements of rail transit maintenance, does not increase the complexity of operation, and ensures the safety and reliability of the system. The design of the turbine coupling is used to enable the power of the low-voltage drive mechanism to be stably transmitted to the high-voltage actuator, ensuring the reliability of phase locking. It also introduces detection of rotation angle, circumferential rotation position, knife switch location, etc. to improve the effectiveness and reliability of phase monitoring and enhance the performance of the device. The present invention is ingenious in design, simple in structure, easy to implement, safe and reliable in operation, and suitable for application in large-energy working state conversion in rail transit operation and maintenance.

[0022] (2) The present invention adopts a conductive coupling to fix the two knife switch seats together, and uses the knife switch seat part as the rotation axis, which not only realizes the stability of rotation and transmission, but also realizes the conduction between the two knife switch seats, ensures the uniform energy transmission, and also guarantees the instantaneous pass rate of the contact energy, effectively solves the problem of insufficient withstand current of conventional isolating switches, eliminates the safety hazards of conventional copper strip current imbalance and easy arcing and ignition, enhances the reliability of the working state conversion device, and prolongs the service life of the device.

[0023] (3) The present invention adopts a structural form of transmission connection between the main transmission shaft and the knife gate seat, so that the power source can directly act on the knife gate seat to realize the rotation of the gate plate to open and close the gate, thereby improving the stability of the transmission and opening and closing operations; and the main transmission shaft cleverly uses a multi-prism transmission structure to connect the knife gate seat, effectively ensuring the reliability of power transmission.

[0024] (4) The present invention cleverly designs a turbine coupling based on the output structure of a single motor transmission to achieve the stability of the rotation control output of the low-voltage drive end, ensure the controllable position of the axial rotation, and thus maintain the reliability of phase locking. The turbine coupling adds a turbine transmission block structure to the traditional coupling, effectively improving the reliability and stability of power transmission between the two coupling blocks.

[0025] (5) The present invention configures a hand-driven mechanism as a fuse for the low-voltage drive end, so that the device can control the shaft rotation through the hand-driven mechanism to achieve a change in the working state of the high-voltage part even when there is no electricity; and a rotating indicator disk is connected to the first output end of the secondary reducer through a synchronous wheel to clearly indicate the rotation angle of the main transmission shaft, thereby facilitating direct observation of the state change.

[0026] (6) The present invention specifically configures a variety of detection devices such as electromagnetic encoders, travel detectors and photoelectric sensors based on the three positions of the knife switch in the working state conversion. Through mutual verification of the detection results of the three, the electromagnetic encoder is used to detect the rotation angle of the power output shaft part, the travel detector is used to detect the circumferential rotation position of the power output shaft part, and the photoelectric sensor is used to detect the knife switch position of the high-voltage actuator. The effectiveness and reliability of the phase monitoring of the device are guaranteed, thereby improving the performance of the device and laying a solid foundation for the intelligent operation and maintenance of the device.

[0027] (7) The stroke detector of the present invention uses a guide rod that has elastic movement when the convex portion arranged on the detection transmission shaft rotates to trigger the micro switch, thereby realizing effective detection of the circumferential rotation position of the shaft.

[0028] (8) The present invention constructs a hot backup mechanism for phase state detection by configuring a detection driven shaft, a backup electromagnetic encoder and a backup stroke detector, and synchronously backs up the normal detection of the rotation angle and circumferential rotation position of the rotating shaft, and cooperates with frequency division detection at different stages of the execution cycle to ensure the absolute reliability of the phase detection of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0030] Figure 2 It is a structural schematic diagram of a high-pressure actuator in an embodiment of the present invention.

[0031] Figure 3 It is a cross-sectional schematic diagram of the coaxial double knife switch assembly part in an embodiment of the present invention.

[0032] Figure 4 It is a schematic structural diagram of the main transmission shaft in an embodiment of the present invention.

[0033] Figure 5 It is a schematic structural diagram of the low-voltage drive mechanism part in an embodiment of the present invention.

[0034] Figure 6 Schematic diagram of the structure of a turbine coupling in an embodiment of the present invention.

[0035] Figure 7 Schematic diagram of the structure of the hand-driven mechanism in an embodiment of the present invention.

[0036] Figure 8 It is a schematic diagram of the structure of the electromagnetic encoder and the travel detector part in an embodiment of the present invention.

[0037] Fig. 9 It is a cross-sectional schematic diagram of the electromagnetic encoder and the travel detector part in an embodiment of the present invention.

[0038] Fig.10 It is a schematic diagram of the structure of detecting the transmission shaft in an embodiment of the present invention. DETAILED DESCRIPTION

[0039] The present invention is further described below in conjunction with the accompanying drawings and examples. The embodiments of the present invention include but are not limited to the following examples.

[0040] Example

[0041] like Figures 1 to 10As shown, the high-energy working state conversion device includes a high-voltage actuator 100 for converting the working state by rotating the knife switch, a main transmission shaft 110 coaxially connected to the knife switch of the high-voltage actuator to drive the knife switch to rotate, a low-voltage drive mechanism 200 connected to the main transmission shaft through a turbine coupling 210, and a detection component 300 arranged on the low-voltage drive mechanism for detecting the rotation state and position of the knife switch. The detection component transmits the collected signal to the upper computer through bus communication. The principle of bus communication is a prior art and will not be repeated in this embodiment.

[0042] Specifically, the high-voltage actuator 100 includes a support plate 101, a pair of rotating support seats 102 made of insulating material arranged on the support plate, a coaxial double knife switch assembly 120 made of conductive material rotatably arranged between the pair of rotating support seats, four insulator assemblies 103 arranged on the support plate and matching the position of the coaxial double knife switch assembly, and a wiring contact assembly 104 arranged at the upper end of the insulator assembly and used to close the coaxial double knife switch assembly rotated to a specified position, wherein the main transmission shaft is coaxially connected to the coaxial double knife switch assembly, and the two wiring contact assemblies corresponding to one knife switch in the coaxial double knife switch assembly independently form a first contact and a second contact respectively, and the two wiring contact assemblies corresponding to another knife switch in the coaxial double knife switch assembly are connected through a bridge guide plate 105 to form a third contact, and the coaxial double knife switch assembly realizes the conversion of three working states of disconnection, connection between the first contact and the third contact, and connection between the second contact and the third contact through rotation.

[0043] Specifically, the coaxial double knife gate assembly 120 includes a first knife gate seat 121 and a second knife gate seat 122 coaxially connected by a conductive coupling 123, and a first gate piece 124 and a second gate piece 125 fixedly mounted on the first knife gate seat and the second knife gate seat respectively, wherein the first gate piece and the second gate piece are both closed with the wiring contact assembly at the corresponding position through a contact 126, the first knife gate seat is connected to the main transmission shaft in a transmission manner and is connected to a rotating support seat in a rotation manner through the transmission input shaft, and the second knife gate seat is connected to another rotating support seat in a rotation manner through a rotating connector 127. The first gate piece and the second gate piece both adopt a double-clip structure to facilitate good clamping contact with the wiring contact assembly, and the double-clip structure can also be provided with an adjustment structure 128 to adjust the spacing of the double-clip structure to better adapt to the clamping force of the wiring contact assembly.

[0044] Specifically, the main transmission shaft 110 includes an input head 111, a transmission rod 112, a rotating connection part 113 and a transmission head 114 which are integrally connected in sequence, the input head is used to connect the turbine coupling, the transmission rod is used to transmit rotational power, the rotating connection part is rotatably connected to the through hole opened on the rotating support seat through an insulating bearing 115, and the transmission head is used for coaxial transmission connection to the first knife gate seat; the transmission head is arranged in a polygonal column shape, and a polygonal hole matching its shape is opened on one side of the first knife gate seat corresponding to the transmission head.

[0045] Specifically, the rotating connecting member 127 is composed of a joint part and a rotating part that are integrally connected. The joint part is used to fix the second knife gate seat. The joint part can be fixedly connected to the side of the second knife gate seat using a connecting plate, or a polygonal columnar protrusion can be provided on the connecting plate to engage with the polygonal hole provided on the second knife gate seat. The rotating part is rotatably connected to the through hole opened on the rotating support seat through an insulating bearing.

[0046] Specifically, the insulator assembly 103 can adopt a universal ceramic insulator, and the four insulator assemblies are respectively located on both sides of the rotation position of the coaxial double knife switch assembly, and each insulator assembly corresponds to a knife switch position on one side of the coaxial double knife switch assembly.

[0047] Specifically, the wiring contact assembly 104 includes a fixed part, a contact part and a wiring part which are connected together. The fixed part is used to be connected and fixed to the upper end of the insulator assembly, the contact part is used to close the knife switch of the coaxial double knife switch assembly rotated to a specified position, and the wiring part is used to connect external cables or bridge guide plates.

[0048] Specifically, the low-voltage drive mechanism 200 includes a frame 201, a motor 202 mounted on the frame as a low-voltage end power source, a primary reducer 203 connected to the motor, a secondary reducer 204 connected to the primary reducer, a first synchronous wheel 205 arranged on the first output shaft of the secondary reducer, an indicating synchronous wheel 206 arranged on the frame and connected to the first synchronous wheel through a synchronous belt, and a rotating indicating disk 207 arranged on the indicating synchronous wheel and coaxially rotating for intuitively indicating the rotation position, wherein the first output shaft end of the secondary reducer is connected to a turbine coupling, and the second output shaft of the secondary reducer is connected to a detection component. In addition, a self-aligning bearing 208 can also be arranged on the first output shaft of the secondary reducer to adjust the connection position of the output shaft center.

[0049] Specifically, the turbine coupling 210 includes a first coupling block 211 and a second coupling block 212 that are mutually engaged, and a turbine transmission block 213 that is interposed between the first coupling block and the second coupling block, the first coupling block is used to connect the first output shaft of the secondary reducer, and the second coupling block is used to connect the main transmission shaft; the first coupling block includes a coupling sleeve 214 having a through hole for arranging the shaft, and a plurality of coupling transmission parts 215 that are circumferentially evenly distributed at one end of the coupling sleeve, and there is a gap between the end of the coupling transmission part close to the through hole and the through hole; the structure of the second coupling block is the same as that of the first coupling block; the turbine transmission block includes a flat cylindrical base 216 whose size matches the size of the gap between the coupling transmission part and the through hole, a plurality of transmission tooth blocks 217 that are circumferentially evenly distributed on the outer side of the base, and a stop protrusion 218 arranged on the axial end face of the transmission tooth block, the thickness of the transmission tooth block and the base matches the thickness of the coupling transmission part, and the side of the transmission tooth block matches the side shape of the coupling transmission part.

[0050] Specifically, the number of the transmission gear blocks is twice the number of the coupling transmission parts on the first coupling block, the transmission gear blocks are spaced apart from the coupling transmission parts, and the side surfaces of the transmission gear blocks are in contact with the side surfaces of the coupling transmission parts. Preferably, the number of the transmission gear blocks is 8.

[0051] Specifically, the first output shaft of the first-stage reducer is transmission-connected to the input end of the second-stage reducer, and a hand-driven mechanism 220 is also provided on the second output shaft of the first-stage reducer. The hand-driven mechanism includes a hand-driven bracket 221 connected to the housing of the first-stage reducer, a speed-increasing wheel 222 arranged on the hand-driven bracket and transmission-connected to the second output shaft of the first-stage reducer, and a handle connector 223 for an external handle fixedly extended from the shaft of the speed-increasing wheel.

[0052] Specifically, the detection component 300 includes a detection end bracket 301 arranged in the frame, a detection transmission shaft 302 arranged on the detection end bracket and connected to the second output shaft of the secondary reducer and rotating synchronously with the main transmission shaft, an electromagnetic encoder 303 arranged at one end of the detection transmission shaft for monitoring the rotation angle, a stroke detector 310 for monitoring the circumferential rotation position and arranged on the detection end bracket corresponding to the side of the detection transmission shaft, and a photoelectric sensor 305 for monitoring the position of the knife switch arranged on the side of the frame close to the high-voltage actuator, wherein the signals collected by the electromagnetic encoder, the stroke detector and the photoelectric sensor are transmitted to the host computer through bus communication.

[0053] Specifically, the electromagnetic encoder is placed on the detection end bracket through the encoder bracket 304, and the axis of the electromagnetic encoder is coaxially connected with the detection transmission shaft. The rotation angle information of the detection transmission shaft and the main transmission shaft can be directly obtained according to the signal of the electromagnetic encoder, thereby realizing the detection of the rotation process of the coaxial double knife switch assembly. The photoelectric sensor 305 is arranged in three positions facing the high-voltage actuator, corresponding to the positions of the knife switches of the coaxial double knife switch assembly in three different working states. The knife switch triggers the detection induction of the corresponding photoelectric sensor at the corresponding position to obtain a signal, thereby realizing the detection of the rotation result of the knife switch of the coaxial double knife switch assembly.

[0054] Specifically, the travel detector 310 includes three position triggers 311 installed on the detection end bracket and arranged around the detection transmission shaft to correspond to three different working state positions, and a convex portion 306 arranged on the side of the detection transmission shaft for triggering the position trigger at the corresponding working state position; the travel detector can also be configured in two groups side by side to improve the detection accuracy. The position trigger 311 includes a trigger bracket 312 connected to the detection end bracket, a guide cavity 313 arranged on the trigger bracket facing the detection transmission shaft, a guide rod 315 arranged in the guide cavity and in contact with the detection transmission shaft through a spring 314, and a micro switch 316 arranged on the trigger bracket and linked to the guide rod; the rotation of the detection transmission shaft causes the convex portion to rotate to the corresponding position, thereby triggering the guide rod at the position to contract, and the end of the guide rod contracts and pushes against the contact piece of the micro switch, triggering the micro switch to send a signal, and the rotation position of the detection transmission shaft and the main transmission shaft in the circumferential direction can be confirmed by the signal of the micro switch, thereby realizing the detection of the rotation process of the coaxial double knife switch assembly.

[0055] By mutually verifying the detection results of the three aspects of rotation angle, circumferential rotation position and knife switch position, the reliability of the device's execution process, execution results and phase can be determined.

[0056] Furthermore, the detection end bracket 301 is also provided with a hot backup mechanism 320 which is synchronously connected to the detection transmission shaft, and the hot backup mechanism includes a detection driven shaft 321 which is synchronously connected to the detection transmission shaft, a spare electromagnetic encoder 322 arranged at one end of the detection driven shaft, and a spare stroke detector 323 arranged on the side of the detection driven shaft. The synchronous transmission connection between the detection driven shaft and the detection transmission shaft can be achieved by a second synchronous wheel 324 and a corresponding synchronous belt which are respectively arranged on the detection driven shaft and the detection transmission shaft. Since the electromagnetic encoder is the main component of the phase detection of the device and is also an important reference object for phase state detection, the design of this hot backup mechanism further ensures the reliability of the phase detection of the device. And through the hot backup of key components, frequency division detection is performed at different stages of the execution cycle, etc., the absolute reliability of the phase detection of the device is ensured.

[0057] When the present invention is in use, the power is output by the motor, and after passing through the two-stage speed reducer, the power is stably transmitted to the main transmission shaft through the turbine transmission coupling, thereby driving the coaxial double knife switch assembly to rotate, and the first gate plate and the second gate plate thereon rotate synchronously, realizing the closing of the wiring contact assembly at the left position or the wiring contact assembly at the right position or the opening of the wiring contact assembly at the upper end position, thereby realizing the conversion of three large-energy working states. In the absence of electricity, an external handle can also be connected to the hand-driven mechanism for manual driving as the last insurance. At the same time, the rotation of the main transmission shaft will synchronously drive the position indicator disk to rotate to the corresponding position on the one hand, which is intuitively displayed to the user, and on the other hand, it will synchronously drive the detection transmission shaft to rotate, and the electromagnetic encoder and the stroke detector can obtain the corresponding detection signal to provide it to the host computer for recording and analysis, and the photoelectric sensor will also provide the detection signal of the knife switch position to the host computer, ensuring that the working state conversion is absolutely predictable and detectable, meeting the actual application requirements.

[0058] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any changes made by adopting the design principles of the present invention and performing non-creative work on this basis should fall within the protection scope of the present invention.

Claims

1. A high energy working state conversion device, characterized in that: It includes a high-voltage actuator for switching the working state by rotating the knife switch, a main transmission shaft coaxially connected to the knife switch of the high-voltage actuator to drive the knife switch to rotate, a low-voltage drive mechanism connected to the main transmission shaft through a turbine coupling, and a detection component arranged on the low-voltage drive mechanism for detecting the rotation state and position of the knife switch, and the detection component transmits the collected signal to the host computer through bus communication; The high-voltage actuator includes a support plate, a pair of rotating support seats made of insulating material arranged on the support plate, a coaxial double-knife switch assembly made of conductive material rotatably arranged between the pair of rotating support seats, four insulator assemblies arranged on the support plate and matched with the position of the coaxial double-knife switch assembly, and a wiring contact assembly arranged at the upper end of the insulator assembly and used for closing the coaxial double-knife switch assembly rotated to a specified position, wherein the main transmission shaft is coaxially connected to the coaxial double-knife switch assembly, the two wiring contact assemblies corresponding to one knife switch in the coaxial double-knife switch assembly independently form a first contact and a second contact respectively, the two wiring contact assemblies corresponding to another knife switch in the coaxial double-knife switch assembly are connected through a bridge guide plate to form a third contact, and the coaxial double-knife switch assembly realizes three working state conversions of disconnection, connection between the first contact and the third contact, and connection between the second contact and the third contact through rotation; The coaxial double knife gate assembly comprises a first knife gate seat and a second knife gate seat coaxially connected by a conductive coupling, and a first gate piece and a second gate piece respectively fixedly arranged on the first knife gate seat and the second knife gate seat, wherein the first gate piece and the second gate piece are both closed with the wiring contact assembly at the corresponding position through the contact point, the first knife gate seat is drivingly connected to the main transmission shaft and is rotationally connected to a rotating support seat through the main transmission shaft, and the second knife gate seat is rotationally connected to another rotating support seat through a rotating connecting piece; The main transmission shaft includes an input head, a transmission rod, a rotating connection part and a transmission head which are integrally connected in sequence, the input head is used to connect a turbine coupling, the transmission rod is used to transmit rotational power, the rotating connection part is rotatably connected to a through hole opened on the rotating support seat through an insulating bearing, and the transmission head is used for coaxial transmission connection to the first knife gate seat; the transmission head is arranged in a polygonal column shape, and a polygonal hole matching its shape is opened on one side of the first knife gate seat corresponding to the transmission head.

2. The high energy working state conversion device according to claim 1 is characterized in that: The low-voltage drive mechanism includes a frame, a motor mounted on the frame as a low-voltage end power source, a primary reducer connected to the motor, a secondary reducer connected to the primary reducer, a first synchronous wheel arranged on the first output shaft of the secondary reducer, an indicating synchronous wheel arranged on the frame and connected to the first synchronous wheel through a synchronous belt, and a rotating indicating disk arranged on the indicating synchronous wheel and coaxially rotating for intuitively indicating the rotation position, wherein the first output shaft end of the secondary reducer is connected to a turbine coupling, and the second output shaft of the secondary reducer is connected to a detection component.

3. The high energy working state conversion device according to claim 2 is characterized in that: The turbine coupling includes a first coupling block and a second coupling block that are mutually clamped, and a turbine transmission block clamped between the first coupling block and the second coupling block, the first coupling block is used to connect the first output shaft of the secondary reducer, and the second coupling block is used to connect the main transmission shaft; the first coupling block includes a coupling sleeve body with a through hole for accommodating the shaft, and a plurality of coupling transmission parts that are circumferentially evenly distributed at one end of the coupling sleeve body, and there is a gap between the end of the coupling transmission part close to the through hole and the through hole; the structure of the second coupling block is the same as that of the first coupling block; the turbine transmission block includes a flat cylindrical base body whose size matches the size of the gap between the coupling transmission part and the through hole, a plurality of transmission tooth blocks that are circumferentially evenly distributed on the outer side of the base body, and a stop protrusion arranged on the axial end face of the transmission tooth block, the thickness of the transmission tooth block and the base body matches the thickness of the coupling transmission part, and the side surface of the transmission tooth block matches the side surface shape of the coupling transmission part.

4. The high energy working state conversion device according to claim 3 is characterized in that: The number of the transmission gear blocks is twice the number of the coupling transmission parts on the first coupling block, the transmission gear blocks are spaced apart from the coupling transmission parts, and the side surfaces of the transmission gear blocks are in contact with the side surfaces of the coupling transmission parts.

5. The high energy working state conversion device according to claim 2 is characterized in that: The first output shaft of the first-stage reducer is transmission-connected to the input end of the second-stage reducer. A hand-driven mechanism is also provided on the second output shaft of the first-stage reducer. The hand-driven mechanism includes a hand-driven bracket connected to the housing of the first-stage reducer, a speed-increasing wheel arranged on the hand-driven bracket and transmission-connected to the second output shaft of the first-stage reducer, and a handle connector for an external handle fixedly extended from the shaft of the speed-increasing wheel.

6. The high energy working state conversion device according to any one of claims 3 to 5, characterized in that: The detection component includes a detection end bracket arranged in the frame, a detection transmission shaft arranged on the detection end bracket and connected to the second output shaft of the secondary reducer and rotating synchronously with the main transmission shaft, an electromagnetic encoder arranged at one end of the detection transmission shaft for monitoring the rotation angle, a stroke detector arranged on the detection end bracket corresponding to the side of the detection transmission shaft for monitoring the circumferential rotation position, and a photoelectric sensor arranged on the side of the frame close to the high-voltage actuator for monitoring the position of the knife switch, wherein the signals collected by the electromagnetic encoder, the stroke detector and the photoelectric sensor are transmitted to the host computer through bus communication.

7. The high energy working state conversion device according to claim 6, characterized in that: The travel detector includes three position triggers installed on the detection end bracket and arranged around the detection transmission shaft to correspond to three different working status positions, and a convex portion arranged on the side of the detection transmission shaft for triggering the position trigger at the corresponding working status position; the position trigger includes a trigger bracket connected to the detection end bracket, a guide cavity arranged on the side of the trigger bracket facing the detection transmission shaft, a guide rod arranged in the guide cavity through a spring and in contact with the detection transmission shaft, and a micro switch arranged on the trigger bracket and linked to the guide rod.

8. The high energy working state conversion device according to claim 6, characterized in that: The detection end bracket is also provided with a hot backup mechanism which is synchronously connected to the detection transmission shaft. The hot backup mechanism includes a detection driven shaft which is synchronously connected to the detection transmission shaft, a backup electromagnetic encoder arranged at one end of the detection driven shaft, and a backup stroke detector arranged on the side of the detection driven shaft.

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