Control circuit with monitoring function and rail transit turnout

Abstract

The utility model provides a control circuit with a monitoring function and a rail transit turnout. The control circuit is characterized in that a three-phase motor coil group is connected with a three-phase power supply or a single-phase power supply through a starting relay; the single-phase power supply is connected with the starting relay, the starting relay is connected with the three-phase motor coil group through the starting relay and the automatic opening and closing device group, and the starting relay is connected with the three-phase motor coil group through the starting relay and the automatic opening and closing device group; the starting relay is connected with the three-phase motor coil group through the automatic shutter group and the second lamp bead, and the starting relay is connected with the three-phase power supply or the starting relay through the starting repeating relay; the starting relay is connected with the starting relay or the three-phase power supply through the starting repeating relay, and the starting relay is connected with the three-phase motor coil unit through the automatic opening and closing device set and the first lamp bead. The turnout monitoring device solves the problem that turnout monitoring is inconvenient in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transit signal monitoring, in particular to a control circuit with a monitoring function and a rail transit turnout. Background Art

[0002] The steel wheel and steel rail system is the most widely used rail transit system at present, and the turnout is the basic mechanical equipment that enables the locomotive to transfer from one track to another. It can give full play to the line's capacity and improve the flexibility of the line. It is usually laid out in stations, sections, crossings, and return lines. Among them, the fixed and reverse positions of the turnout, whether it is locked, etc. are the basic information of the turnout status, which is of great significance for monitoring whether the turnout is working normally.

[0003] Maintenance personnel of rail transit lines and signals inspect and maintain turnouts on a daily basis, and steel wheel and rail standard turnouts are the weak link in the safety of the rail transit system. Their operating status needs to be monitored regularly to ensure the safety of line operation. Especially with the technological development trend of high speed, heavy load and higher safety requirements in the railway industry, the monitoring of turnout operating status requires flexible deployment, simplicity and accurate information.

[0004] However, the existing technology for monitoring turnouts mainly relies on the monitoring and control of the station's interlocking system. The on-duty personnel in the signal tower use the intercom to transmit the turnout status to the maintenance personnel beside the track by operating and observing the software of the station's interlocking system. This semi-manual method and technology has the following disadvantages:

[0005] On-site turnout maintenance personnel cannot intuitively and quickly understand the status of the turnout;

[0006] The method in which the duty personnel in the signal tower transmit the switch status information to the on-site switch maintenance personnel via walkie-talkies is inefficient and easily affected by on-site noise, especially when there is traffic on adjacent lines, where the noise interference is more obvious. Summary of the invention

[0007] In view of the deficiencies in the prior art, the utility model provides a control circuit with a monitoring function and a rail transit turnout, which solves the problem of the inconvenience of monitoring the turnout in the prior art.

[0008] At least one embodiment of the utility model provides a control circuit with a monitoring function, including a three-phase power supply, a single-phase power supply, a three-phase motor coil group, a start relay 1DQJ-1, a start relay 2DQJ-11, a start relay 2DQJ-12, a start relay 2DQJ-13, a start repeater relay 1DQJF-1, a start repeater relay 1DQJF-2, a reverse position indicating relay, a positioning indicating relay, a first lamp bead, a second lamp bead, a first automatic switch group, a second automatic switch group, a third automatic switch group, and a fourth automatic switch group;

[0009] The first coil of the three-phase motor coil group is connected to the A phase of the three-phase power supply, or one end of the single-phase power supply, through the starting relay 1DQJ-1;

[0010] The other end of the single-phase power supply is connected to the input end of the starting relay 2DQJ-11, the first output end of the starting relay 2DQJ-11 is connected to the third coil of the three-phase motor coil group through the reverse position indicating relay, the first input end of the starting relay 2DQJ-12 and the third automatic switch group, and the second output end of the starting relay 2DQJ-11 is connected to the third coil of the three-phase motor coil group through the positioning indicating relay, the second input end of the starting relay 2DQJ-13 and the first automatic switch group;

[0011] The second input end of the start relay 2DQJ-12 is connected to the second coil of the three-phase motor coil group through the fourth automatic switch group and the second lamp bead in sequence, and the output end of the start relay 2DQJ-12 is connected to the C phase of the three-phase power supply or the first output end of the start relay 2DQJ-11 through the start repeater relay 1DQJF-1;

[0012] The output end of the starting relay 2DQJ-13 is connected to the second output end of the starting relay 2DQJ-11 or the B phase of the three-phase power supply through the starting repeater relay 1DQJF-2, and the first input end of the starting relay 2DQJ-13 is connected to the second coil of the three-phase motor coil unit through the second automatic switch group and the first lamp bead.

[0013] The technical solution disclosed by the utility model has at least the following beneficial effects:

[0014] When a three-phase power supply is required, the start repeater relay 1DQJF-1, the start repeater relay 1DQJF-2, and the first input terminals of the start relay 1DQJ-1 are connected to the respective output terminals, and the opening and closing of the corresponding first automatic switch group, the second automatic switch group, the third automatic switch group, and the fourth automatic switch group are controlled, so that each phase line of the three-phase power supply is connected to the three-phase motor coil group to realize power supply;

[0015] When the turnout is locked and the positioning state is indicated, the start repeater relay 1DQJF-1, the start repeater relay 1DQJF-2, and the second input terminals of the start relay 1DQJ-1 are controlled to be connected to the respective output terminals;

[0016] The input end of the start relay 2DQJ-11 is connected to the second output end thereof, the output end of the start relay 2DQJ-12 is connected to the first input end thereof, the input end of the start relay 2DQJ-13 is connected to the first output end thereof, and the conduction of the first automatic switch group and the second automatic switch group, and the closing of the third automatic switch group and the fourth automatic switch group are controlled;

[0017] At this time, the current loop formed by this circuit can light up the first lamp bead, thereby reminding the staff that the turnout is in a locked and positioned state;

[0018] When the turnout is locked and the reverse position is indicated, the start repeater relay 1DQJF-1, the start repeater relay 1DQJF-2, and the second input terminals of the start relay 1DQJ-1 are controlled to be connected to the respective output terminals;

[0019] The input end of the start relay 2DQJ-11 is connected to the first output end thereof, the output end of the start relay 2DQJ-12 is connected to the second input end thereof, the output end of the start relay 2DQJ-13 is connected to the second output end thereof, and the conduction of the third automatic switch group and the fourth automatic switch group, and the closing of the first automatic switch group and the second automatic switch group are controlled;

[0020] At this time, the current loop formed by this circuit can light up the second lamp bead, thereby reminding the staff that the turnout is in a locked and positioned state;

[0021] At the same time, after adopting the above circuit, by judging the lighting status of the first lamp bead and the second lamp bead and combining the actual state of the turnout, it is possible to preliminarily judge whether there is a problem with the turnout circuit and the approximate location of the problematic circuit, assisting the turnout maintenance personnel to determine the location of the fault point, further improving the efficiency of fault repair, and reducing train delays caused by turnout failures.

[0022] In a control circuit with a monitoring function provided in one embodiment of the utility model, it also includes a first sliding rheostat, and the other end of the single-phase power supply is connected to the input end of the starting relay 2DQJ-11 through the first sliding rheostat.

[0023] The technical solution disclosed by the utility model has at least the following beneficial effects:

[0024] The first sliding rheostat can offset the resistance increased by long-term use of each relay or automatic switch group to ensure that the circuit is always in a relatively stable and ideal state, thereby reducing corresponding circuit failures caused by resistance changes.

[0025] In a control circuit with a monitoring function provided in one embodiment of the utility model, a second sliding rheostat is also included, and the first lamp bead and the second lamp bead are both connected to the second coil of the three-phase motor coil group through the second sliding rheostat.

[0026] The technical solution disclosed by the utility model has at least the following beneficial effects:

[0027] By adding a second sliding rheostat, the resistance increased by long-term use of each relay or automatic switch group can be further offset to ensure that the circuit is always in a relatively stable and ideal state, thereby reducing corresponding circuit failures caused by resistance changes.

[0028] In a control circuit with a monitoring function provided in one embodiment of the utility model, it also includes a starting relay 1DQJ-2, and the other end of the single-phase power supply is connected to the first sliding resistor through the starting relay 1DQJ-2.

[0029] The technical solution disclosed by the utility model has at least the following beneficial effects:

[0030] By using the starting relay 1DQJ-2, the main switch control of the part of the above circuit that detects the turnout status can be achieved.

[0031] In a control circuit with a monitoring function provided in one embodiment of the utility model, it also includes a transformer, and the two ends of the single-phase power supply are respectively connected to the two ends of the primary side of the transformer, and the two ends of the secondary side of the transformer are respectively connected to the starting relay 1DQJ-1 and the starting relay 1DQJ-2.

[0032] The technical solution disclosed by the utility model has at least the following beneficial effects:

[0033] The transformer can be used to adjust a larger voltage output range and to power the circuit more safely.

[0034] In a control circuit with a monitoring function provided by one embodiment of the present invention, the first automatic switch group and the second automatic switch group both include three groups of switches connected in series.

[0035] In a control circuit with a monitoring function provided in one embodiment of the utility model, it also includes a phase failure protector, and the three-phase power supply is connected to the start repeater relay 1DQJF-1, the start repeater relay 1DQJF-2 and the start relay 1DQJ-1 through the phase failure protector.

[0036] The technical solution disclosed by the utility model has at least the following beneficial effects:

[0037] By using a phase failure protector, the three-phase power supply can be protected, making the circuit run more safely.

[0038] In a control circuit with a monitoring function provided in one embodiment of the utility model, a protection relay is also included, and the protection relay is connected to the phase failure protector.

[0039] The technical solution disclosed by the utility model has at least the following beneficial effects:

[0040] The protection relay can be used to detect circuit faults, so that the circuit can operate more safely.

[0041] In a control circuit with a monitoring function provided in one embodiment of the utility model, four fuses are also included, three of which are respectively arranged on the three phase lines of the three-phase power supply, and another fuse is arranged on the phase line of the single-phase power supply.

[0042] The technical solution disclosed by the utility model has at least the following beneficial effects:

[0043] By using each fuse, when a fault occurs in the current output by each phase line of the three-phase power supply and the single-phase power supply, the connection with the subsequent circuit can be cut off in time to protect the circuit.

[0044] The utility model also provides a rail transit turnout, which is equipped with a control circuit with a monitoring function as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 A control circuit diagram with monitoring function provided as one of the real-time examples of the utility model;

[0046] Figure 2 A control circuit diagram with monitoring function provided as another real-time example of the utility model;

[0047] Figure 3The circuit diagram for the turnout when it is in the locked and positioned indication state;

[0048] Figure 4 This is the circuit diagram when the turnout is in the locked and reverse position indication state. DETAILED DESCRIPTION

[0049] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0050] Furthermore, those skilled in the art may combine and associate different embodiments or examples and features of different embodiments or examples described in this specification without mutual contradiction.

[0051] Please refer to here Figure 1 As shown, the utility model provides a control circuit with a monitoring function, including a three-phase power supply, a single-phase power supply, a three-phase motor coil group, a start relay 1DQJ-1, a start relay 2DQJ-11, a start relay 2DQJ-12, a start relay 2DQJ-13, a start repeater relay 1DQJF-1, a start repeater relay 1DQJF-2, a reverse position indicating relay, a positioning indicating relay, a first lamp bead, a second lamp bead, a first automatic switch group, a second automatic switch group, a third automatic switch group, and a fourth automatic switch group;

[0052] Among them, Figure 1 In the following figures, the start relay 1DQJ-1 is represented by 1DQJ-1, and the start relay 1DQJ-1 includes a contact 1 representing its input terminal, a contact 2 representing its first output terminal, and a contact 3 representing its second output terminal. The start relay 2DQJ-11 is represented by 2DQJ-11, and the start relay 2DQJ-11 includes a contact 1 representing its input terminal, a contact 2 representing its first output terminal, and a contact 3 representing its second output terminal. The start relay 2DQJ-12 is represented by 2DQJ-12, and the start relay 2DQJ-12 includes a contact 1 representing its output terminal, a contact 2 representing its first input terminal, and a contact 3 representing its second input terminal. The start relay 2DQJ-13 is used in Figure 1In the example, 2DQJ-13 is used to represent the start relay 2DQJ-13, which includes a contact 1 representing its output terminal, a contact 2 representing its first output terminal, and a contact 3 representing its second output terminal. In the example, 1DQJF-1 is used to represent the start repeat relay 1DQJF-1, which includes a contact 1 representing its input terminal, a contact 2 representing its first output terminal, and a contact 3 representing its second output terminal. In the example, 1DQJF-2 is used to represent the start repeat relay 1DQJF-2, which includes a contact 1 representing its input terminal, a contact 2 representing its first output terminal, and a contact 3 representing its second output terminal. The contact 2 of the output end and the contact representing the second output end thereof, each of the above contacts 1 is configured to be connected to either contact 2 or contact 3. In this embodiment, the start relay 2DQJ-11, the start relay 2DQJ-12, and the start relay 2DQJ-13 are different contact groups in the same start relay. Similarly, the start repeater relay 1DQJF-1 and the start repeater relay 1DQJF-2 are different contact groups in the same start repeater relay. The start relay 1DQJ-1 and the start relay 1DQJ-2 mentioned later are different contact groups of the same start relay.

[0053] The reverse position indicating relay is indicated by FBJ in each figure, the positive position indicating relay is indicated by DBJ, the first lamp bead is indicated by LED1, and the second lamp bead is indicated by LED2;

[0054] The first automatic switch group is represented by a first switch including contact 11 and contact 12, the second automatic switch group is represented by a second switch including contact 13 and contact 14, a third switch including contact 15 and contact 16, a fourth switch including contact 33 and contact 34, and a fifth switch including contact 35 and contact 36, the third automatic switch group is composed of an eighth switch including contact 41 and contact 42, the fourth automatic switch group is composed of a sixth switch including contact 23 and contact 24, a seventh switch including contact 25 and contact 26, a ninth switch including contact 43 and contact 44, and a tenth switch including contact 45 and contact 46;

[0055] The three-phase motor coil group includes a first coil group, a second coil group and a third coil group connected at one end, wherein the first coil group is Figure 1 The leftmost coil in the second coil group is Figure 1 The coil in the middle, the third coil group is Figure 1 The coil located on the far right;

[0056] The first coil of the three-phase motor coil group is connected to the A phase of the three-phase power supply, or one end of the single-phase power supply, through the starting relay 1DQJ-1;

[0057] The other end of the single-phase power supply is connected to the input end of the start relay 2DQJ-11, the first output end of the start relay 2DQJ-11 is connected to the third coil of the three-phase motor coil group through the reverse position indicating relay, the first input end of the start relay 2DQJ-12 and the third automatic switch group, and the second output end of the start relay 2DQJ-11 is connected to the third coil of the three-phase motor coil group through the positioning indicating relay, the second input end of the start relay 2DQJ-13 and the first automatic switch group;

[0058] The second input end of the start relay 2DQJ-12 is connected to the second coil of the three-phase motor coil group through the fourth automatic switch group and the second lamp bead in sequence, and the output end of the start relay 2DQJ-12 is connected to the C phase of the three-phase power supply or the first output end of the start relay 2DQJ-11 through the start repeater relay 1DQJF-1;

[0059] The output end of the starting relay 2DQJ-13 is connected to the second output end of the starting relay 2DQJ-11 or the B phase of the three-phase power supply through the starting repeater relay 1DQJF-2, and the first input end of the starting relay 2DQJ-13 is connected to the second coil of the three-phase motor coil unit through the second automatic switch group and the first lamp bead.

[0060] Specifically, please combine Figure 1 as well as Figure 2 As shown, this circuit includes indoor detection part, junction box part, cable box part and transfer machine part;

[0061] The indoor detection part includes three-phase power supply, single-phase power supply, start relay 1DQJ-1, start relay 2DQJ-11, start relay 2DQJ-12, start relay 2DQJ-13, start repeat relay 1DQJF-1, start repeat relay 1DQJF-2, reverse position indication relay, positioning indication relay, the junction box part includes contact F1, contact F2, contact F3, contact F4 and contact F5, the three-phase power supply includes 380V voltage output A phase, B phase and C phase, the single-phase power supply outputs 220V voltage;

[0062] The cable box part includes a connection point 1, a connection point 2, a connection point 3, a connection point 4, a connection point 5, a first lamp bead and a second lamp bead;

[0063] The transfer machine part includes a first automatic switch group, a second automatic switch group, a third automatic switch group, a fourth automatic switch group and a three-phase motor coil group, wherein the first coil of the three-phase motor coil group is connected to the A phase of the three-phase power supply through the contact 1 and the contact 3 of the starting relay 1DQJ-1, and is connected to one end of the single-phase power supply through the contact 1 and the contact 2 of the starting relay 1DQJ-1;

[0064] The other end of the single-phase power supply is connected to the contact 1 of the starting relay 2DQJ-11, and the contact 2 of the starting relay 2DQJ-11 is connected to the third coil of the three-phase motor coil group through the reverse position indicating relay FBJ, the contact 2 of the starting relay 2DQJ-12, the contact F5, the contact 5, the contact 41, and the contact 42 in sequence, until it is connected to the third coil of the three-phase motor coil group, and the contact 3 of the starting relay 2DQJ-11 is connected to the third coil of the three-phase motor coil group through the positioning indicating relay DBJ, the contact 3 of the starting relay 2DQJ-13, the contact F4, the contact 4, the contact 11, and the contact 12 in sequence, wherein the contact 12 is connected to the contact 42, and the opening and closing of the corresponding switches of the two can be realized by setting a set of interlocking switches;

[0065] The contact 3 of the starting relay 2DQJ-12 is connected to the second coil of the three-phase motor coil group through the contact F3, the contact 3, the contact 23, the contact 24, the contact 45, the contact 46, the second lamp bead LED2, the contact 26, and the contact 25 in sequence, and the contact 1 of the starting relay 2DQJ-12 is connected to the C phase of the three-phase power supply through the contact 1 and the contact 2 of the starting repeater relay 1DQJF-1, or is connected to the contact 2 of the starting relay 2DQJ-11 through the contact 1 and the contact 3 of the starting repeater relay 1DQJF-1, wherein the contact 23 is connected to the contact 13, and the opening and closing of the corresponding switches of the two can be realized by setting a group of interlocking switches, and the contact 25 is connected to the contact 35, and the opening and closing of the corresponding switches of the two can be realized by setting a group of interlocking switches;

[0066] Contact 1 of starting relay 2DQJ-13 is connected to contact 3 of starting relay 2DQJ-11 through contact 1 and contact 2 of starting repeater relay 1DQJF-2, or is connected to phase B of the three-phase power supply through contact 1 and contact 3 of starting repeater relay 1DQJF-2. Contact 2 of starting relay 2DQJ-13 is connected to the second coil of the three-phase motor coil unit through contact F2, contact 2, contact 33, contact 34, contact 15, contact 16, first lamp bead LED1, contact 36, contact 35, wherein contact 33 is connected to contact 43, and the opening and closing of the corresponding switches of the two can be realized by setting a group of interlocking switches. Contact 35 is connected to contact 25, and the opening and closing of the corresponding switches of the two can be realized by setting a group of interlocking switches.

[0067] When a three-phase power supply is required, the contact 1 and contact 3 of the start repeater relay 1DQJF-1, the contact 1 and contact 2 of the start repeater relay 1DQJF-2, and the contact 1 and contact 2 of the start relay 1DQJ-1 can be controlled to be connected at the same time, and the opening and closing of the corresponding first automatic switch group, the second automatic switch group, the third automatic switch group, and the fourth automatic switch group can be controlled, so that each phase line of the three-phase power supply is respectively connected to the three-phase motor coil group to realize power supply;

[0068] Please combine here Figure 2 as well as Figure 3 As shown, when the turnout is locked and the positioning state is indicated, the control starts the repeat relay 1DQJF-1 contact 1 and contact 3, the start repeat relay 1DQJF-2 contact 1 and contact 2 are connected, and the start relay 1DQJ-1 contact 1 and contact 2 are connected;

[0069] And control the contact 1 of the starting relay 2DQJ-11 to be connected to its contact 3, the contact 1 of the starting relay 2DQJ-12 to be connected to its contact 2, the contact 1 of the starting relay 2DQJ-13 to be connected to its contact 2, and control the conduction of the first switch including contacts 11 and 12, the second switch including contacts 13 and 14, the third switch including contacts 15 and 16, the fourth switch including contacts 33 and 34, and the fifth switch including contacts 35 and 36, as well as the closing of the sixth switch including contacts 23 and 24, the seventh switch including contacts 25 and 26, the eighth switch including contacts 41 and 42, the ninth switch including contacts 43 and 44, and the tenth switch including contacts 45 and 46, that is, Figure 2 The solid line states corresponding to each relay and switch;

[0070] At this time, the current loop formed by this circuit is as follows Figure 3 As shown, the first lamp bead LED1 can be lit, thereby reminding the staff that the turnout is in a locked and positioned state;

[0071] When the turnout is locked and the reverse position is indicated, the control starts the repeater relay 1DQJF-1, and the contact 1 is connected to the contact 3, the contact 1 is connected to the contact 2 of the repeater relay 1DQJF-2, and the contact 1 is connected to the contact 2 of the start relay 1DQJ-1;

[0072] And control the contact 1 of the starting relay 2DQJ-11 to be connected to its contact 2, the contact 1 of the starting relay 2DQJ-12 to be connected to its contact 3, the contact 1 of the starting relay 2DQJ-13 to be connected to its contact 3, and control the closing of the first switch including contacts 11 and 12, the second switch including contacts 13 and 14, the third switch including contacts 15 and 16, the fourth switch including contacts 33 and 34, and the fifth switch including contacts 35 and 36, as well as the conduction of the sixth switch including contacts 23 and 24, the seventh switch including contacts 25 and 26, the eighth switch including contacts 41 and 42, the ninth switch including contacts 43 and 44, and the tenth switch including contacts 45 and 46, that is, Figure 2 The dotted line states in the figure correspond to the relays and switches;

[0073] At this time, the current loop formed by this circuit is as follows Figure 4 As shown, the second lamp bead LED2 can be lit, thereby reminding the staff that the turnout is in a locked and positioned state;

[0074] At the same time, after adopting the above circuit, by judging the lighting status of the first lamp bead LED1 and the second lamp bead LED2 and combining with the actual state of the turnout, it is possible to preliminarily judge whether there is a problem with the turnout circuit and the approximate location of the problematic circuit, assisting the turnout maintenance personnel to determine the location of the fault point, further improving the efficiency of fault repair, and reducing train delays caused by turnout failures.

[0075] Specifically, in the normal working state, only one of the first lamp bead LED1 represented by the positioned position and the second lamp bead LED2 represented by the reversed position is lit. If both lamp beads are off, the faulty part of the circuit may exist in the wiring between the single-phase power supply and contact 1 of the starting relay 2DQJ-11, or the wiring from the single-phase power supply to the three-phase motor coil group of the switch machine, or the turnout (switch machine) is in the four-open state.

[0076] If the turnout (switch machine) is in the reverse position and the second lamp bead LED2 indicating the reverse position can light up, but the turnout (switch machine) is in the fixed position and the first lamp bead LED1 indicating the fixed position cannot light up, then the fault location exists in Figure 3 The right half branch (contact 3 of the starting relay 2DQJ-11 through the first lamp bead LED1 to the third coil part of the three-phase motor coil group).

[0077] If the turnout (switch machine) is in the positioning position and the first lamp bead LED1 indicating the positioning position can light up, but the turnout (switch machine) is in the reverse position and the second lamp bead LED2 indicating the reverse position cannot light up, then the fault location exists in Figure 4The right half branch (contact 3 of the starting relay 2DQJ-11 through the second lamp bead LED1 to the third coil part of the three-phase motor coil group).

[0078] Furthermore, the circuit also includes a first sliding rheostat, which is represented by RX1 in the drawings. Figure 2 As shown, the other end of the single-phase power supply is connected to the contact 1 of the starting relay 2DQJ-11 through the first sliding resistor RX1.

[0079] Through the above arrangement, when the contact resistance of each relay or switch in the circuit increases due to environmental factors such as dust or humidity, the first sliding rheostat RX1 can be used to offset the increased resistance to ensure that the circuit is always in a relatively stable and ideal state, thereby reducing corresponding circuit failures caused by resistance changes.

[0080] Furthermore, the circuit also includes a second sliding rheostat, which is represented by RX2 in the drawings. Figure 2 As shown, the first lamp bead LED1 and the second lamp bead LED2 are both connected to the second coil of the three-phase motor coil group through the second sliding rheostat RX2, one end of the first lamp bead LED1 is connected to one end of the second sliding rheostat RX2, one end of the second lamp bead LED2 is connected to the other end of the second sliding rheostat RX2, and one end of the second sliding rheostat RX2 is also connected to the second coil of the three-phase motor coil group through contacts 36, contact 35 and contact 25, and the other end of the second sliding rheostat RX2 is connected to the second coil of the three-phase motor coil group through contacts 26 and contact 25.

[0081] By adding a second sliding rheostat, the resistance increased by long-term use of each relay or automatic switch group can be further offset to ensure that the circuit is always in a relatively stable and ideal state, thereby reducing corresponding circuit failures caused by resistance changes.

[0082] Furthermore, the circuit also includes a starting relay 1DQJ-2, which is represented by DQJ5 in the drawings. The other end of the single-phase power supply is connected to the first sliding resistor RX1 through the starting relay 1DQJ-2.

[0083] By using the starting relay 1DQJ-2, the main switch control of the part of the above circuit that detects the turnout status can be achieved.

[0084] Furthermore, the circuit also includes a transformer BYQ, the two ends of the single-phase power supply are respectively connected to the two ends of the primary side of the transformer, and the two ends of the secondary side of the transformer BYQ are respectively connected to the contact 1 of the starting relay 1DQJ-1 and the contact 2 of the starting relay 1DQJ-2.

[0085] By using transformer BYQ, a larger voltage output range can be adjusted and the circuit can be powered more safely.

[0086] Furthermore, the circuit also includes a phase failure protector DBQ, through which the three-phase power supply is connected to contact 2 of the start repeater relay 1DQJF-1, contact 3 of the start repeater relay 1DQJF-2 and contact 3 of the start relay 1DQJ-1.

[0087] By using the phase failure protector DBQ, the three-phase power supply can be protected, making the circuit run more safely.

[0088] Furthermore, the circuit also includes a protection relay BHJ, and the protection relay BHJ is connected to the phase failure protector DBQ.

[0089] The protection relay BHJ can be used to detect circuit faults, making the circuit run more safely.

[0090] Furthermore, the circuit also includes four fuses RD, three of which are respectively arranged on three phase lines of the three-phase power supply, and another fuse is arranged on a phase line of the single-phase power supply.

[0091] By using each fuse RD, when a fault occurs in the current output by each phase line of the three-phase power supply and the single-phase power supply, the connection with the subsequent circuit can be cut off in time to protect the circuit.

[0092] The utility model also provides a rail transit turnout, which is equipped with a control circuit with a monitoring function as described above.

[0093] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A control circuit with monitoring function, characterized in that: Three-phase power supply, single-phase power supply, three-phase motor coil group, starting relay 1DQJ-1, starting relay 2DQJ-11, starting relay 2DQJ-12, starting relay 2DQJ-13, starting repeater relay 1DQJF-1, starting repeater relay 1DQJF-2, reverse position indication relay, positioning indication relay, first lamp bead, second lamp bead, first automatic switch group, second automatic switch group, third automatic switch group, fourth automatic switch group; The first coil of the three-phase motor coil group is connected to the A phase of the three-phase power supply, or one end of the single-phase power supply, through the starting relay 1DQJ-1; The other end of the single-phase power supply is connected to the input end of the starting relay 2DQJ-11, the first output end of the starting relay 2DQJ-11 is connected to the third coil of the three-phase motor coil group through the reverse position indicating relay, the first input end of the starting relay 2DQJ-12 and the third automatic switch group, and the second output end of the starting relay 2DQJ-11 is connected to the third coil of the three-phase motor coil group through the positioning indicating relay, the second input end of the starting relay 2DQJ-13 and the first automatic switch group; The second input end of the start relay 2DQJ-12 is connected to the second coil of the three-phase motor coil group through the fourth automatic switch group and the second lamp bead in sequence, and the output end of the start relay 2DQJ-12 is connected to the C phase of the three-phase power supply or the first output end of the start relay 2DQJ-11 through the start repeater relay 1DQJF-1; The output end of the starting relay 2DQJ-13 is connected to the second output end of the starting relay 2DQJ-11 or the B phase of the three-phase power supply through the starting repeater relay 1DQJF-2, and the first input end of the starting relay 2DQJ-13 is connected to the second coil of the three-phase motor coil unit through the second automatic switch group and the first lamp bead.

2. A control circuit with monitoring function according to claim 1, characterized in that: It also includes a first sliding rheostat, and the other end of the single-phase power supply is connected to the input end of the starting relay 2DQJ-11 through the first sliding rheostat.

3. A control circuit with monitoring function according to claim 2, characterized in that: It also includes a second sliding rheostat, and the first lamp bead and the second lamp bead are both connected to the second coil of the three-phase motor coil group through the second sliding rheostat.

4. A control circuit with monitoring function according to claim 2 or 3, characterized in that: It also includes a starting relay 1DQJ-2, and the other end of the single-phase power supply is connected to the first sliding resistor through the starting relay 1DQJ-2.

5. A control circuit with monitoring function according to claim 4, characterized in that: It also includes a transformer, wherein the two ends of the single-phase power supply are respectively connected to the two ends of the primary side of the transformer, and the two ends of the secondary side of the transformer are respectively connected to the starting relay 1DQJ-1 and the starting relay 1DQJ-2.

6. A control circuit with monitoring function according to claim 1, characterized in that: The first automatic switch group and the second automatic switch group each include three groups of switches connected in series.

7. A control circuit with monitoring function according to claim 1, characterized in that: It also includes a phase failure protector, through which the three-phase power supply is connected to the start repeater relay 1DQJF-1, the start repeater relay 1DQJF-2 and the start relay 1DQJ-1.

8. A control circuit with monitoring function according to claim 7, characterized in that: It also includes a protection relay, which is connected to the phase failure protector.

9. A control circuit with monitoring function according to claim 1, characterized in that: It also includes four fuses, three of which are respectively arranged on the three phase lines of the three-phase power supply, and another fuse is arranged on the phase line of the single-phase power supply.

10. A rail transit turnout, characterized in that: A control circuit with a monitoring function as claimed in any one of claims 1 to 9 is provided.

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