Turnout switching equipment and control method thereof

Abstract

The invention belongs to the technical field of rail transit, and discloses turnout switching equipment and a control method thereof.The equipment comprises an execution unit, a first power unit, a first connecting unit, a second power unit and a second connecting unit; the execution unit is arranged at the track center, the first power unit and the second power unit are arranged on the tracksides of the two sides of a turnout respectively, one side of the execution unit is in transmission connection with the first power unit through the first connecting unit, the other side of the execution unit is in transmission connection with the second power unit through the second connecting unit, and the execution unit is connected with a switch rail. According to the embodiment of the invention, the execution unit and the power units are separately arranged, the execution unit is arranged in the track center, and the first power unit and the second power unit are arranged beside the track, so that modularization is realized; and two groups of power units are adopted to provide power for the execution unit, and the reliability of the turnout switching equipment is improved by utilizing the redundancy design of the power units, so that the requirement of high-speed development of railways is met.

Description

Technical Field

[0001] The invention belongs to the technical field of rail transportation, and in particular relates to a turnout switching device and a control method thereof. Background Art

[0002] Turnout switching equipment is one of the important railway infrastructures. It is used to switch and lock turnouts, change the direction of turnout opening, and supervise and inspect the position of turnouts. The smooth operation of turnout switching equipment is an important guarantee for ensuring railway driving safety and improving transportation efficiency.

[0003] At present, whether it is a turnout switching device configured with a single-point traction turnout or a turnout switching device configured with a full main machine of a multi-point traction turnout, or a turnout switching device configured with a main and auxiliary machine, a set of power drive systems are used in the turnout switching device. Once the power drive system fails, the entire turnout switching device will lose the electric mode and the turnout switching action can only be completed by manual operation, which affects the reliability of the turnout switching.

[0004] Therefore, a new type of turnout switching equipment is needed to realize the redundant design and intelligent control of its power drive system, improve the reliability of the turnout switching system, and meet the requirements of high-speed railway development. Summary of the invention

[0005] In view of the above problems, the present invention provides a turnout switching device and a control method thereof, which adopts the following technical solutions: A turnout switching device comprises an execution unit, a first power unit, a first connection unit, a second power unit and a second connection unit; Wherein, the execution unit is arranged at the center of the track, the first power unit and the second power unit are respectively arranged on the rails on both sides of the turnout, one side of the execution unit is transmission connected to the first power unit through the first connecting unit, and the other side of the execution unit is transmission connected to the second power unit through the second connecting unit, and the execution unit is connected to the point rail.

[0006] Further, the execution unit includes a first housing, and a driving mechanism, a locking mechanism and a display mechanism arranged in the first housing; Wherein, the driving mechanism is located between the locking mechanism and the indicating mechanism, the driving mechanism is transmission connected to the locking mechanism, one end of the driving mechanism is transmission connected to the first power unit through the first connecting unit, and the other end of the driving mechanism is transmission connected to the second power unit through the second connecting unit; the two ends of the locking mechanism are respectively connected to the point rail through the action rod connecting assembly and the external locking device, and the indicating mechanism is connected to the point rail through the indicating rod connecting assembly.

[0007] Further, the first power unit includes a second housing, and a first motor, a first coupling and a first power output shaft arranged in the second housing; Among them, the output shaft of the first motor is transmission connected to the input end of the first coupler, the output end of the first coupler is transmission connected to one end of the first power output shaft, and the other end of the first power output shaft is transmission connected to the first connection unit.

[0008] Furthermore, the first power unit also includes a first control and monitoring unit disposed in the second housing, the first control and monitoring unit is located on one side of the output shaft of the first motor, and the first control and monitoring unit is used to monitor state parameters of the first motor.

[0009] Further, the second power unit includes a third housing, and a second motor, a second coupling and a second power output shaft arranged in the third housing; Among them, the output shaft of the second motor is transmission connected to the input end of the second coupler, the output end of the second coupler is transmission connected to one end of the second power output shaft, and the other end of the second power output shaft is transmission connected to the second connecting unit.

[0010] Furthermore, the second power unit also includes a second control and monitoring unit arranged in the third housing, the second control and monitoring unit is located on one side of the output shaft of the second motor, and the second control and monitoring unit is used to monitor the state parameters of the second motor.

[0011] Further, the first connecting unit includes a first coupling, a first connecting shaft and a second coupling, one end of the first connecting shaft is transmission connected to one side of the driving mechanism through the first coupling, and the other end of the first connecting shaft is transmission connected to the output end of the first coupling through the second coupling.

[0012] Furthermore, the second connecting unit includes a third coupling, a second connecting shaft and a fourth coupling, one end of the second connecting shaft is transmission connected to the other side of the driving mechanism through the third coupling, and the other end of the second connecting shaft is transmission connected to the output end of the second coupling through the fourth coupling.

[0013] The present invention also provides a control method for the switch switching device, comprising the following steps: When the turnout is switched normally, any one of the first power unit and the second power unit provides power drive for the execution unit; When it is determined that any one of the first power unit and the second power unit fails, the power of the failed power unit is cut off, and the execution unit is driven by the other power unit.

[0014] Further, when it is determined that any one of the first power unit and the second power unit fails, cutting off the power of the failed power unit comprises the following steps: If a power unit fails, the power supply of the failed power unit is disconnected, the input and output ends of the connector of the failed power unit are disconnected, and the power supply of another power unit is connected, and the input and output ends of the connector of the other power unit are connected.

[0015] Beneficial effects of the present invention: 1. In the embodiment of the present invention, the execution unit and the power unit are arranged separately, the execution unit is arranged at the center of the track, and the first power unit and the second power unit are arranged beside the track to achieve modularization; and the first power unit and the second power unit are used, if one group of power units fails, it is automatically disconnected from the connection unit on the same side, and at the same time, the other group of power units is automatically connected to the connection unit on the same side, and continues to drive the execution unit normally to complete the turnout switching action; the redundant design of the power unit is used to improve the reliability of the turnout switching equipment to meet the needs of high-speed railway development.

[0016] 2. In the embodiment of the present invention, the maximum output force of the power unit can be set by the connector to protect the motor from being damaged by overload.

[0017] 3. In the embodiment of the present invention, by setting a control monitoring unit in the power unit, the running state of the motor can be monitored in real time, and faults can be discovered in time, which greatly increases the reliability of the switch switching equipment.

[0018] Other features and advantages of the present invention will be described in the following description, and partly become obvious from the description, or be understood by implementing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic structural diagram of a turnout switching device according to an embodiment of the present invention is shown; Figure 2 A schematic flow chart of a control method for a turnout switching device according to an embodiment of the present invention is shown.

[0021] In the figure: 1, execution unit; 11, first housing; 12, driving mechanism; 13, locking mechanism; 14, indicating mechanism; 2, first power unit; 21, second housing; 22, first motor; 23, first coupling; 231, input end of first coupling; 232, output end of first coupling; 24, first power output shaft; 25, first control and monitoring unit; 3, first connection unit; 31, first coupling; 32, first connection shaft; 33, second coupling ; 4. Second power unit; 41. Third housing; 42. Second motor; 43. Second coupler; 431. Input end of second coupler; 432. Output end of second coupler; 44. Second power output shaft; 45. Second control and monitoring unit; 5. Second connecting unit; 51. Third coupling; 52. Second connecting shaft; 53. Fourth coupling; 6. Action rod connecting assembly; 7. External locking device; 8. Indicating rod connecting assembly; 9. Point rail; 10. Basic rail. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] It should be noted that the terms "first", "second" etc. in the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged in appropriate circumstances, so that the embodiments of the present application described here. In the present application, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal" etc. are based on the orientation or positional relationship shown in the accompanying drawings.

[0024] The embodiment of the present invention provides a turnout switching device, which arranges the mechanical unit and the power separately in the track center and the trackside to achieve modularization; the dual-power redundant design increases reliability, and single-power and dual-power configurations can be performed according to on-site requirements, which is easy to operate.

[0025] like Figure 1 As shown, a turnout switching device includes an execution unit 1, a first power unit 2, a first connection unit 3, a second power unit 4 and a second connection unit 5.

[0026] The execution unit 1 is arranged at the track center, which is the center of adjacent sleepers of the turnout track.

[0027] The first power unit 2 and the second power unit 4 are respectively arranged on the rails on both sides of the turnout. One side of the execution unit 1 is transmission connected to the first power unit 2 through the first connecting unit 3, and the other side of the execution unit 1 is transmission connected to the second power unit 4 through the second connecting unit 5. The execution unit 1 is connected to the point rail 9.

[0028] In this embodiment, the execution unit 1 and the power unit are arranged separately, the execution unit 1 is set at the center of the track, and the first power unit 2 and the second power unit 4 are set at the trackside to achieve modularization; and the first power unit 2 and the second power unit 4 are used to provide power to the execution unit 1 at the same time. If one group of power units fails, it will automatically disconnect from the connection unit on the same side. At the same time, the other group of power units will automatically connect to the connection unit on the same side and continue to drive the execution unit 1 normally to complete the turnout switching action; the redundant design of the power unit is used to improve the reliability of the turnout switching equipment to meet the needs of high-speed railway development.

[0029] For example, the execution unit 1 includes a first housing 11 , and a driving mechanism 12 , a locking mechanism 13 , and a display mechanism 14 disposed in the first housing 11 .

[0030] The driving mechanism 12 is located between the locking mechanism 13 and the indicating mechanism 14 , and the driving mechanism 12 is transmission-connected to the locking mechanism 13 . For example, the center lines of the driving mechanism 12 , the locking mechanism 13 and the indicating mechanism 14 are perpendicular to the base rail 10 .

[0031] One end of the driving mechanism 12 is transmission connected to the first power unit 2 through the first connecting unit 3, and the other end of the driving mechanism 12 is transmission connected to the second power unit 4 through the second connecting unit 5; the two ends of the locking mechanism 13 are respectively connected to the point rail 9 through the action rod connecting assembly 6 and the external locking device 7, and the indicating mechanism 14 is connected to the point rail 9 through the indicating rod connecting assembly 8.

[0032] For example, the first power unit 2 includes a second housing 21 , and a first motor 22 , a first coupling 23 , and a first power output shaft 24 disposed in the second housing 21 .

[0033] Among them, the output shaft of the first motor 22 is transmission connected to the input end 231 of the first coupler, the output end 232 of the first coupler is transmission connected to one end of the first power output shaft 24, and the other end of the first power output shaft 24 is transmission connected to the first connection unit 3.

[0034] The input end 231 of the first coupler and the output end 232 of the first coupler can be connected or disconnected by a control signal. When the first power unit 2 fails, the input end 231 of the first coupler and the output end 232 of the first coupler are disconnected, and the first power unit 2 is isolated from the execution unit 1, thereby ensuring the normal operation of the second power unit 4.

[0035] The first connector 23 is used to set the maximum output force of the first power unit 2 to protect the first motor 22 from being damaged by overload, and at the same time controls the connection and disconnection of the first power unit 2 and the first connection unit 3 through the connection status of the input end 231 of the first connector and the output end 232 of the first connector.

[0036] When the switch resistance is less than the maximum output force set for the first coupler 23, the input end 231 of the first coupler drives the output end 232 of the first coupler to rotate synchronously, and transmits power to the execution unit 1; when the switch resistance exceeds the maximum output force set for the first coupler 23, the output end 232 of the first coupler does not rotate synchronously with the input end 231 of the first coupler, and the maximum output force of the first coupler 23 needs to be adjusted.

[0037] For example, the first power unit 2 also includes a first control monitoring unit 25 arranged in the second shell 21. The first control monitoring unit 25 is located on one side of the output shaft of the first motor 22. The first control monitoring unit 25 is used to monitor the state parameters of the first motor 22, including current, torque, etc.

[0038] The first control monitoring unit 25 monitors the operating current and output torque of the first motor 22 in real time to determine whether the first power unit 2 is in a normal state. If the operating current or output torque of the first motor 22 fluctuates abnormally, it is determined that the first power unit 2 has a fault, and the operator is reminded to check in time through an alarm message and switch to the second power unit 4.

[0039] For example, the second power unit 4 includes a third housing 41 , and a second motor 42 , a second coupling 43 , and a second power output shaft 44 disposed in the third housing 41 .

[0040] Among them, the output shaft of the second motor 42 is transmission connected to the input end 431 of the second coupler, the output end 432 of the second coupler is transmission connected to one end of the second power output shaft 44, and the other end of the second power output shaft 44 is transmission connected to the second connection unit 5.

[0041] The input terminal 431 of the second coupler and the output terminal 432 of the second coupler can be connected or disconnected by a control signal, thereby ensuring that the second power unit 4 is isolated from the execution unit 1 when not in operation.

[0042] The second connector 43 is used to set the maximum output force of the second power unit 4 to protect the second motor 42 from being damaged by overload, and to control the connection and disconnection of the second power unit 4 and the second connection unit 5 through the connection state of the input end 431 of the second connector and the output end 432 of the second connector.

[0043] When the switch resistance is less than the maximum output force set for the second coupler 43, the input end 431 of the second coupler drives the output end 432 of the second coupler to rotate synchronously, and transmits power to the execution unit 1; when the switch resistance exceeds the maximum output force set for the second coupler 43, the output end 432 of the second coupler does not rotate synchronously with the input end, and the maximum output force of the second coupler 43 needs to be adjusted.

[0044] For example, the second power unit 4 also includes a second control monitoring unit 45 arranged in the third shell 41, and the second control monitoring unit 45 is located on one side of the output shaft of the second motor 42. The second control monitoring unit 45 is used to monitor the state parameters of the second motor 42, and the state parameters include current, torque, etc.

[0045] The second control monitoring unit 45 monitors the operating current and output torque of the second motor 42 in real time to determine whether the second power unit 4 is in a normal state. If the operating current or output torque of the second motor 42 fluctuates abnormally, it is determined that the second power unit 4 has a fault, and the operator is reminded to check in time through an alarm message and switch to the first power unit 2.

[0046] The embodiment of the present invention can monitor the operating status of the first motor 22 and the second motor 42 in real time through the first control monitoring unit 25 and the second control monitoring unit 45, detect faults in time, and greatly increase the reliability of the switch switching equipment.

[0047] For example, a reducer may also be arranged in the first power unit 2 and the second power unit 4; the output shaft of the first motor 22 and the output shaft of the second motor 42 are respectively connected to the input end of a reducer by transmission; the output ends of the two reducers are respectively connected to the input end 231 of the first coupler and the input end 431 of the second coupler; the output end 232 of the first coupler is connected to the first power output shaft 24; and the output end 432 of the second coupler is connected to the second power output shaft 44.

[0048] For example, the first connecting unit 3 includes a first coupling 31, a first connecting shaft 32 and a second coupling 33. One end of the first connecting shaft 32 is transmission connected to one side of the driving mechanism 12 through the first coupling 31, and the other end of the first connecting shaft 32 is transmission connected to the first power output shaft 24 through the second coupling 33.

[0049] For example, the second connecting unit 5 includes a third coupling 51, a second connecting shaft 52 and a fourth coupling 53. One end of the second connecting shaft 52 is transmission connected to the other side of the driving mechanism 12 through the third coupling 51, and the other end of the second connecting shaft 52 is transmission connected to the second power output shaft 44 through the fourth coupling 53.

[0050] The working principle of the turnout conversion device of the present invention: When the turnout is switched normally, only one of the first power unit 2 and the second power unit 4 provides power drive for the execution unit 1, and the other power unit is powered off and in standby. When the first power unit 2 is working normally, the input end 231 of the first coupler and the output end 232 of the first coupler are connected by a control signal. At the same time, the second power unit 4 is not powered on, and the input end 431 of the second coupler and the output end 432 of the second coupler are disconnected. The first power unit 2 is powered on, and the first control and monitoring unit 25 controls the input end 231 of the first coupler and the output end 232 of the first coupler to be connected. The first motor 22 is powered on to start and drive the input end 231 of the first coupler to rotate. The input end 231 of the first coupler drives the output end 232 of the first coupler to rotate synchronously, and the power is transmitted to the driving mechanism 12 of the execution unit 1 through the first connection unit 3. The driving mechanism 12 pushes the locking mechanism 13 to move, thereby pulling the point rail 9 to a close position, and locking the locking mechanism 13 to achieve the locking of the turnout. At the same time, the indicating mechanism 14 gives an in-place indicating signal. If the output end 232 of the first coupler does not rotate synchronously with the input end, it means that the turnout resistance exceeds the maximum output force set for the first coupler 23, and the maximum output force of the first coupler 23 needs to be adjusted.

[0051] The present invention also provides a control method for a turnout switching device. When a group of power units fails, the group of power units is cut off and another group of power units is connected to meet the needs of turnout switching, avoid paralysis of the power system of the entire turnout switching equipment, improve the reliability and redundancy of the power units, and meet the needs of high-speed railway development.

[0052] like Figure 2 As shown, a control method for a turnout switching device comprises the following steps: S1. When the turnout is switched normally, any one of the first power unit 2 and the second power unit 4 provides power drive for the execution unit 1.

[0053] S2, when any one of the first power unit 2 and the second power unit 4 fails, the power of the failed power unit is cut off, and the execution unit 1 is driven by the other power unit, as follows: If a power unit fails, the power supply of the failed power unit is immediately disconnected, and the input and output ends of the coupler of the failed power unit are disconnected. At the same time, the power supply of another power unit is connected, and the input and output ends of the coupler of the other power unit are connected, and the execution unit 1 continues to be driven normally to complete the switch switching and locking action.

[0054] For example, when the first control monitoring unit 25 detects abnormal fluctuations in the state parameters (current or output torque) in the first power unit 2, indicating that the first power unit 2 has a fault, the power supply of the first power unit 2 is disconnected, and the input end 231 of the first coupler and the output end 232 of the first coupler are disconnected; at the same time, the second power unit 4 is powered on, the input end 431 of the second coupler and the output end 432 of the second coupler are connected, and the execution unit 1 continues to be driven normally to complete the turnout switching and locking actions, thereby avoiding paralysis of the power system of the entire turnout switching equipment and improving the reliability and redundancy of the power unit.

[0055] The embodiment of the present invention realizes the connection and disconnection between the power unit and the execution unit 1 by setting a connector in the power unit, thereby switching the two power units to provide power to the execution unit 1 in turn; at the same time, the connector can set the maximum output force of the power unit to protect the motor from being damaged by overload.

[0056] The embodiment of the present invention can monitor the running status of the motor in real time by setting a monitoring unit in the power unit, detect faults in time, and greatly increase the reliability of the switch switching equipment.

[0057] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A turnout switching device, characterized in that: It comprises an execution unit (1), a first power unit (2), a first connection unit (3), a second power unit (4) and a second connection unit (5); The execution unit (1) is arranged at the center of the track, the first power unit (2) and the second power unit (4) are arranged at the rail sides of the turnout respectively, one side of the execution unit (1) is transmission-connected to the first power unit (2) via the first connection unit (3), the other side of the execution unit (1) is transmission-connected to the second power unit (4) via the second connection unit (5), and the execution unit (1) is connected to the point rail (9).

2. The turnout switching device according to claim 1, characterized in that: The execution unit (1) comprises a first housing (11), and a driving mechanism (12), a locking mechanism (13) and a display mechanism (14) arranged in the first housing (11); The driving mechanism (12) is located between the locking mechanism (13) and the indicating mechanism (14); the driving mechanism (12) is connected to the locking mechanism (13) in a transmission manner; one end of the driving mechanism (12) is connected to the first power unit (2) in a transmission manner through the first connecting unit (3); the other end of the driving mechanism (12) is connected to the second power unit (4) in a transmission manner through the second connecting unit (5); the two ends of the locking mechanism (13) are connected to the point rail (9) through an action rod connecting assembly (6) and an external locking device (7), respectively; and the indicating mechanism (14) is connected to the point rail (9) through an indicating rod connecting assembly (8).

3. The turnout switching device according to claim 2, characterized in that: The first power unit (2) comprises a second housing (21), and a first motor (22), a first coupling (23) and a first power output shaft (24) arranged in the second housing (21); The output shaft of the first motor (22) is transmission-connected to the input end of the first coupler, the output end of the first coupler is transmission-connected to one end of the first power output shaft (24), and the other end of the first power output shaft (24) is transmission-connected to the first connection unit (3).

4. The turnout switching device according to claim 3, characterized in that: The first power unit (2) further comprises a first control monitoring unit (25) arranged in the second housing (21), the first control monitoring unit (25) being located on one side of the output shaft of the first motor (22), and the first control monitoring unit (25) being used to monitor the state parameters of the first motor (22).

5. The turnout switching device according to claim 3 or 4, characterized in that: The second power unit (4) comprises a third housing (41), and a second motor (42), a second coupling (43) and a second power output shaft (44) arranged in the third housing (41); The output shaft of the second motor (42) is transmission-connected to the input end of the second coupler, the output end of the second coupler is transmission-connected to one end of the second power output shaft (44), and the other end of the second power output shaft (44) is transmission-connected to the second connection unit (5).

6. The turnout switching device according to claim 5, characterized in that: The second power unit (4) further comprises a second control monitoring unit (45) arranged in the third housing (41), the second control monitoring unit (45) being located on one side of the output shaft of the second motor (42), and the second control monitoring unit (45) being used to monitor the state parameters of the second motor (42).

7. The turnout switching device according to claim 3 or 4, characterized in that: The first connecting unit (3) comprises a first coupling (31), a first connecting shaft (32) and a second coupling (33); one end of the first connecting shaft (32) is transmission-connected to one side of the driving mechanism (12) via the first coupling (31); the other end of the first connecting shaft (32) is transmission-connected to an output end (232) of the first coupling via the second coupling (33).

8. The turnout switching device according to claim 5, characterized in that: The second connecting unit (5) comprises a third coupling (51), a second connecting shaft (52) and a fourth coupling (53); one end of the second connecting shaft (52) is transmission-connected to the other side of the driving mechanism (12) via the third coupling (51); the other end of the second connecting shaft (52) is transmission-connected to the output end (432) of the second coupling via the fourth coupling (53).

9. A control method for a turnout switching device, characterized in that: The turnout switching device used in any one of claims 1 to 8 comprises the following steps: When the turnout is switched normally, any one of the first power unit (2) and the second power unit (4) provides power drive for the execution unit (1); When it is determined that any one of the first power unit (2) and the second power unit (4) fails, the power of the failed power unit is cut off, and the execution unit (1) is driven by the other power unit.

10. The control method of the turnout switching equipment according to claim 9, characterized in that: When it is determined that any one of the first power unit (2) and the second power unit (4) is faulty, cutting off the power of the faulty power unit comprises the following steps: If a power unit fails, the power supply of the failed power unit is disconnected, the input and output ends of the connector of the failed power unit are disconnected, and the power supply of another power unit is connected, and the input and output ends of the connector of the other power unit are connected.

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