A kind of switch tamping car's tong control circuit, tong system and switch tamping car

Abstract

This invention discloses a clamp control circuit, clamp system, and turnout tamping car for a turnout tamping car, relating to the field of control. When the start switch is on, the conversion module controls its fixed end to connect with the first conversion end, thereby forcibly opening the clamp to allow the turnout tamping car to perform subsequent travel and other operations. When the start switch is off, the conversion module controls its fixed end to connect with the second conversion end, allowing the clamp to be connected to the turnout tamping car's control system for normal operation. When the turnout tamping car needs the clamp to open, the forced opening of the clamp is controlled by the cooperation between the button switch, the start switch, and the conversion module. By controlling the energization of the clamp opening valve, the clamp can be kept in a pressure-holding state, preventing the clamp from closing naturally due to weightlessness in the event of a power failure in the turnout tamping car's control system. This avoids damage to the track from the closed clamp, ensuring track safety and preventing safety hazards during train operation.

Description

Technical Field

[0001] This invention relates to the field of control, and in particular to a clamp control circuit, clamp system, and turnout tamping machine for a turnout tamping machine. Background Technology

[0002] The main working process of the turnout tamping machine is to carry out track switching operations in the turnout area by using the track lifting and shifting device. Especially when working within the range of 5m in front of the tip of the switch rail to the heel of the switch rail, and 5m in front of the frog toe to the heel of the frog, the track lifting operation must be directed by the fourth and fifth positions of the turnout tamping machine. After each track lifting operation is completed, before moving the moving train, it is necessary to confirm that the clamps are in the open state before notifying the first position of the turnout tamping machine to move.

[0003] Existing turnout tamping machines rely solely on their own control system to control the clamps. This control system opens and closes the clamps to perform the tamping operation. When the turnout tamping machine is operating with the lifting hook in the turnout section of the track, in case of an emergency, the control circuit in the machine's control system may lose power. The solenoid valve in the clamp's hydraulic control circuit will be in the neutral position, and the clamp's cylinder will lose its pressure-holding function. Hydraulic fluid will flow back to the hydraulic tank, causing the clamp to close under natural weightlessness. If travel is attempted under these conditions, the closed clamps will damage the switch rails and frogs, causing track damage, increasing turnout maintenance costs, and creating safety hazards when trains pass. Summary of the Invention

[0004] The purpose of this invention is to provide a clamp control circuit, clamp system, and turnout tamping car for a turnout tamping car. When the turnout tamping car needs to perform travel operations or other clamp opening requirements, the clamps can be forcibly opened by means of a push-button switch, a start switch, and the coordination between switching modules. By controlling the energization of the clamp opening valve, the clamps can be kept in a pressure-holding state, preventing the clamps from closing naturally due to weightlessness in the event of a power failure in the turnout tamping car's control system. This avoids damage to the track from the closed clamps, ensures track safety, and prevents safety hazards during train operation.

[0005] To solve the above-mentioned technical problems, the present invention provides a clamp control circuit for a turnout tamping machine. The turnout tamping machine includes clamps. The control circuit includes a push-button switch, a start switch, and a conversion module. The first end of the push-button switch is connected to a power supply, and the second end of the push-button switch is connected to the control end of the start switch. The first end of the start switch is connected to the power supply, and the second end is connected to the control end of the conversion module. The first conversion end of the conversion module is connected to the power supply, the second conversion end is connected to the control system of the turnout tamping machine, and the fixed end is connected to the opening valve of the clamps.

[0006] The push-button switch is used to close when a control command is received to output a first signal to control the start switch, and to open when no control command is received.

[0007] The start switch is used to turn on when the first signal is received in the off state to output a second signal to control the conversion module, and to turn off when the first signal is received in the on state. The initial state of the start switch is the off state.

[0008] The conversion module is used to control its fixed end to connect with its first conversion end to open the clamp when it receives the second signal, and to control its fixed end to connect with its second conversion end to ensure that the clamp works normally under the control of the turnout tamping machine's control system when it does not receive the second signal.

[0009] Optionally, the start switch is a pulse relay, which includes a first coil and a first contact. The first end of the first coil is connected to the second end of the push-button switch, and the second end is grounded. The first end of the first contact is connected to the power supply, and the second end is connected to the control terminal of the first conversion module and the control terminal of the second conversion module, respectively.

[0010] Optionally, the clamp includes an outer clamp and an inner clamp, the clamp's opening valve includes a first opening valve and a second opening valve, the conversion module includes a first conversion module and a second conversion module, the control terminals of the first conversion module and the second conversion module are respectively connected to the second terminal of the start switch, the first conversion terminal of the first conversion module is connected to the power supply, the second conversion terminal is connected to the control system of the turnout tamping machine, and the fixed terminal is connected to the first opening valve of the clamp, the first conversion terminal of the second conversion module is connected to the power supply, the second conversion terminal is connected to the control system of the turnout tamping machine, and the fixed terminal is connected to the second opening valve of the clamp;

[0011] The first conversion module is used to control its own fixed end to connect with its own first conversion end when it receives the second signal so that the outer clamp of the clamp opens; and to control its own fixed end to connect with its own second conversion end when it does not receive the second signal so that the clamp works normally under the control of the control system of the turnout tamping machine.

[0012] The second conversion module is used to control its fixed end to connect with its first conversion end when it receives the second signal so that the inner clamp of the clamp opens, and to control its fixed end to connect with its second conversion end when it does not receive the second signal so that the clamp works normally under the control of the control system of the turnout tamping machine.

[0013] Optionally, the first conversion module is a conversion relay, which includes a second coil and a second contact. The first end of the second coil is connected to the second end of the start switch, and the second end is grounded. The fixed end of the second contact is connected to the first opening valve of the clamp. The first conversion end is connected to the power supply, and the second conversion end is connected to the control system of the turnout tamping machine.

[0014] Optionally, the changeover relay further includes a third contact, the fixed end of which is connected to the first closing valve of the clamp, the first changeover end is open-circuited, and the second changeover end is connected to the control system of the turnout tamping machine.

[0015] Optionally, it also includes a secondary push-button switch, the first end of which is connected to the power supply, and the second end of which is connected to the control terminal of the start switch.

[0016] Optionally, it also includes a light-emitting diode, the first end of which is connected to the second end of the start switch, and the second end is grounded.

[0017] Optionally, it also includes a sensor switch, the first end of which is connected to the power supply, and the second end of which is connected to the second end of the push-button switch and the control end of the start switch, respectively.

[0018] The inductive switch is used to turn on when a preset track is detected to output the first signal to control the start switch, and to turn off when no preset track is detected.

[0019] Optionally, it also includes a reset switch, wherein the first end of the reset switch is connected to the second end of the inductive switch, the second end is connected to the second end of the push button switch and the control end of the start switch, and the control end is connected to the second end of the start switch;

[0020] The reset switch is used to turn off when the second signal is received so that the inductive switch stops outputting the first signal, and to turn on when the second signal is not received.

[0021] To solve the above-mentioned technical problems, the present invention also provides a clamping system for a turnout tamping car, including clamps and a clamping control circuit for the turnout tamping car as described above, wherein the clamping control circuit of the turnout tamping car is connected to the clamps.

[0022] To solve the above-mentioned technical problems, the present invention also provides a turnout tamping machine, including a control system for the turnout tamping machine and a clamping system for the turnout tamping machine as described above, wherein the control system of the turnout tamping machine is connected to the clamps in the clamping system of the turnout tamping machine.

[0023] This invention provides a clamp control circuit, clamp system, and turnout tamping machine for a turnout tamping machine. The turnout tamping machine includes clamps. The control circuit includes a push-button switch and a start switch conversion module. When the turnout tamping machine is about to move, the operator issues a control command to control the push-button switch. After receiving the control command, the push-button switch closes and controls the start switch. The start switch switches between on and off states according to the control of the push-button switch and its own current state. When the start switch is on, the conversion module controls its fixed end to connect to the first conversion end, thereby energizing the clamp's opening valve and forcing the clamp to be in the open state so that the turnout tamping machine can perform subsequent moving operations. When the start switch is off, the conversion module controls its fixed end to connect to the second conversion end, so that the clamp's opening valve is connected to the turnout tamping machine's control system. The clamp can perform normal operation based on the control signals of the turnout tamping machine's control system. When the turnout tamping machine needs to perform travel operations or other clamp opening requirements, the clamps can be forcibly opened through the coordination between the push-button switch, the start switch, and the conversion module. By controlling the energization of the clamp opening valve, the clamps can be kept in a pressure-holding state, preventing the clamps from closing naturally due to weightlessness in the event of a power failure in the turnout tamping machine's control system. This avoids damage to the track from the closed clamps, ensuring track safety and preventing safety hazards during train operation. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the prior art and embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A schematic diagram of the clamp control circuit of a turnout tamping machine provided by the present invention;

[0026] Figure 2 A schematic diagram of the clamp control circuit of another turnout tamping machine provided by the present invention;

[0027] Figure 3 A first control principle diagram of the clamp control circuit of a turnout tamping machine provided by the present invention;

[0028] Figure 4 A second control principle diagram of the clamp control circuit of a turnout tamping machine provided by the present invention;

[0029] Figure 5 A schematic diagram of button installation for a turnout tamping machine provided by the present invention;

[0030] Figure 6A schematic diagram of a clamping system provided by the present invention;

[0031] Figure 7 This is a schematic diagram of the structure of a turnout tamping machine provided by the present invention;

[0032] Figure 8 A top view of a turnout tamping machine provided by the present invention;

[0033] Figure 9 This is a front view of a turnout tamping machine provided by the present invention. Detailed Implementation

[0034] The core of this invention is to provide a clamp control circuit, clamp system, and turnout tamping car for a turnout tamping car. When the turnout tamping car needs to perform travel operations or other clamp opening requirements, the clamps can be forcibly opened by means of a button switch, a start switch, and a conversion module. By controlling the energization of the clamp opening valve, the clamps can be kept in a pressure-holding state, preventing the clamps from closing naturally due to weightlessness in the event of a power failure in the turnout tamping car's control system. This avoids damage to the track from the closed clamps, ensuring track safety and preventing safety hazards during train operation.

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Please refer to Figure 1 , Figure 1 A schematic diagram of the clamp control circuit of a turnout tamping machine provided by the present invention; please refer to... Figure 2 , Figure 2 A schematic diagram of the clamp control circuit of another turnout tamping machine provided by the present invention; please refer to... Figure 3 , Figure 3 A first control principle diagram of the clamp control circuit of a turnout tamping machine provided by the present invention; please refer to... Figure 4 , Figure 4 This invention provides a second control principle diagram for the clamp control circuit of a turnout tamping machine; B7, B4, and B69 are all control boxes of the turnout tamping machine; +B7-Si35 represents the Si35 power port of box B7, connected to the power supply VCC; +B4-S2 represents the S2 power port of box B4, connected to the power supply VCC; and +B4-OD represents the grounding port of box B4. Figure 3 2C7 in Figure 4 1F6 corresponds to, Figure 3 Received at 2C7 Figure 4 At point 1F6, a complete control loop is formed, and box B7 is connected to the control system of the turnout tamping machine through the nine ports QLB1-QLB8.

[0037] To solve the above-mentioned technical problems, the present invention provides a clamp control circuit 21 for a turnout tamping machine. The turnout tamping machine includes clamps 22. The control circuit includes a push button switch 1, a start switch 2, and a conversion module 25. The first end of the push button switch 1 is connected to the power supply VCC, and the second end of the push button switch 1 is connected to the control end of the start switch 2. The first end of the start switch 2 is connected to the power supply VCC, and the second end is connected to the control end of the conversion module 25. The first conversion end of the conversion module 25 is connected to the power supply VCC, the second conversion end is connected to the control system 7 of the turnout tamping machine, and the fixed end is connected to the opening valve 26 of the clamps 22.

[0038] Push-button switch 1 is used to close when a control command is received to output a first signal to control start switch 2, and to open when no control command is received;

[0039] The start switch 2 is used to turn on when it receives the first signal in the off state to output the second signal to control the conversion module 25, and to turn off when it receives the first signal in the on state. The initial state of the start switch 2 is the off state.

[0040] The conversion module 25 is used to control its fixed end to connect with its first conversion end to open the clamp 22 when it receives the second signal, and to control its fixed end to connect with its second conversion end to ensure that the clamp 22 operates normally under the control of the turnout tamping machine control system 7 when it does not receive the second signal.

[0041] Specifically, when the turnout tamping machine needs to perform travel operations or other clamp opening requirements, the operator issues a control command to open clamp 22 to push-button switch 1, causing push-button switch 1 to close. After push-button switch 1 closes, the output first signal is transmitted to the control terminal of start switch 2. When start switch 2 receives the first signal for the first time, since it is initially in the off state, start switch 2 will turn on based on the control of the first signal. After turning on, it will output a second signal to the control terminal of conversion module 25. After receiving the second signal, conversion module 25 will switch the circuit, switching its fixed terminal from the connection state with the second conversion terminal to the connection state with the first conversion terminal, thereby connecting the opening valve 26 of clamp 22 to the power supply VCC, energizing the opening valve 26 of clamp 22, thus forcibly opening the clamp. The entire process achieves the forced opening of clamp 22 through the coordinated control of push-button switch 1, start switch 2, and conversion module 25.

[0042] Understandably, when the turnout tamping machine completes its movement or when the clamp 22 no longer needs to be forcibly opened, the first signal can be output again via the push-button switch 1. At this time, since the start switch 2 is in the conducting state, it will turn off after receiving the first signal, thereby stopping the output of the second signal and disconnecting the connection between the power supply VCC and the control terminal of the conversion module 25. The conversion module 25 will switch its fixed terminal from the state connected to the first conversion terminal back to the state connected to the second conversion terminal. At this time, the opening valve 26 is disconnected from the power supply VCC and connected to the control system 7 of the turnout tamping machine. Therefore, the specific working process of the opening valve 26 will be based on the control process of the control system 7 of the turnout tamping machine, that is, the state of the clamp 22 when it is working normally, that is, the reset of the clamp 22 is further controlled by the control command.

[0043] It is easy to understand that the control command received by button switch 1 can be implemented by the operator directly through manual operation of button switch 1, or by the operator using software commands such as controllers. This application does not place particular limitations on the specific type and implementation method of button switch 1, and there are multiple ways to implement the control command, which this application does not specifically limit here. Button switch 1 can be implemented in the form of a button; correspondingly, the control command can be implemented by the operator through button operation. That is, when the operator presses the button corresponding to button switch 1, button switch 1 receives the control command. It is easy to understand that when button switch 1 is implemented in the form of a button, the clamp control circuit 21 of the turnout tamping machine provided in this application is a manual forced opening process. This application does not place particular limitations on the setting location and number of button switches 1. Button switches 1 can be installed in the operator's cab, that is, in a suitable position of position 1 in the turnout tamping machine, to facilitate the forced opening or resetting of clamp 22.

[0044] Specifically, this application does not impose any particular limitations on the specific type and implementation method of the start switch 2 and the conversion module 25. The start switch 2 can be implemented using a relay or transistor, and the conversion module 25 can be implemented using a changeover switch or a changeover relay. This application does not impose any particular limitations on the number and location of the start switch 2 and the conversion module 25. The specific number needs to be adjusted according to the specific number of clamps 22 and the actual application. The location can be set according to the structure of the turnout tamping machine itself. This application does not impose any particular limitations on the specific form of the first and second signals; they can be control signals such as current signals or voltage signals. This application does not impose any particular limitations on the specific type and implementation method of the power supply VCC; it can be implemented directly using the working electricity of the turnout tamping machine itself, or it can be implemented using other power supplies.

[0045] It should be noted that the clamp control circuit 21 of the turnout tamping machine provided in this application, through the cooperation of push-button switch 1, start switch 2, and conversion module 25, enables the turnout tamping machine to switch the operating power after entering the turnout area. The clamp 22 control circuit provided in this application controls the clamp 22, forcibly energizing the clamp 22 control valve, causing the clamp 22 to open. The control current issued by the original turnout tamping machine's control system 7 becomes ineffective in controlling the clamp 22 until the turnout tamping machine leaves the turnout area. Then, it switches back to the original vehicle control mode of the turnout tamping machine's control system 7, using the original vehicle control module to control the operation of the clamp 22. The entire switching process can be completed manually or by combining manual and automatic operations. This application does not specifically limit the implementation methods of the control commands, the first signal, and the second signal. This application does not specifically limit the specific number, type, and location of the clamps 22; these can be set according to the specific application requirements and operation process of the turnout tamping machine.

[0046] It is easy to understand that by adding the clamp control circuit 21 of the turnout tamping machine to the electrical control process of the clamp 22, the clamp 22 can be controlled to open and maintain pressure, avoiding the clamp 22 from closing under natural weightlessness. This avoids the clamp 22 from squeezing and damaging the switch rail and frog during hydraulic travel. When the turnout tamping machine is working in the turnout area, the pressure of the clamp 22 cylinder can be controlled to maintain the state, and the clamp 22 is always kept open. The power supply and power failure of the original turnout tamping machine control system 7 have no effect on it. When entering the turnout area for operation, the control process of the switching module 25, activated by the push-button switch 1 and the start switch 2, forces the solenoid valve corresponding to the opening valve 26 to be energized. This keeps the large and small chamber oil pressures of the clamp 22 cylinder in a pressure-maintaining state, ensuring that the clamp 22 remains open. The original operating current of the turnout tamping machine's control system 7 has no effect on the control valve. Furthermore, by adding a return mode, i.e., the reset process of the clamp 22, when the clamp 22 needs to travel in a naturally weightless state outside the turnout area, the original turnout tamping machine's control system 7 can be switched back to, i.e., the clamp 22 can be controlled through the original vehicle control mode. After the turnout tamping machine leaves the turnout area, the original vehicle control mode can be switched back to.

[0047] This invention provides a clamp control circuit 21 for a turnout tamping machine. The turnout tamping machine includes clamps 22. The control circuit includes a push-button switch 1, a start switch 2, and a switching module 25. When the turnout tamping machine is about to move, the operator issues a control command to control the push-button switch 1. After receiving the control command, the push-button switch 1 closes and controls the start switch 2. The start switch 2 switches between on and off states according to the control of the push-button switch 1 and its own current state. When the start switch 2 is on, the switching module 25 controls its fixed end to connect with the first switching end, thereby energizing the opening valve 26 of the clamp 22 and forcing the clamp 22 to be in the open state so that the turnout tamping machine can perform subsequent moving operations. When the start switch 2 is off, the switching module 25 controls its fixed end to connect with the second switching end, so that the opening valve 26 of the clamp 22 is connected to the control system 7 of the turnout tamping machine. The clamp 22 can perform normal operation based on the control signals of the control system 7 of the turnout tamping machine. When the turnout tamping machine needs to perform travel operations or other clamp 22 opening requirements, the clamp 22 can be forcibly opened through the cooperation between the button switch 1, the start switch 2 and the conversion module 25. By controlling the energization of the clamp 22 opening valve, the clamp 22 can be kept in a pressure-holding state, preventing the clamp 22 from closing naturally in a weightless state when the turnout tamping machine's control system 7 loses power. This avoids damage to the track caused by the closed clamp 22, ensures track safety, and avoids safety hazards during train operation.

[0048] Based on the above embodiments,

[0049] As an optional embodiment, the start switch 2 is a pulse relay, which includes a first coil and a first contact. The first end of the first coil is connected to the second end of the push-button switch 1, and the second end is grounded. The first end of the first contact is connected to the power supply VCC, and the second end is connected to the control terminal of the first conversion module 3 and the control terminal of the second conversion module 4, respectively.

[0050] Considering the large size of the turnout tamping machine, remote control is required during the control of clamp 22. A pulse relay is used to activate switch 2. Push-button switch 1 controls the energization and de-energization of the first coil via a first signal, thus controlling the activation or de-energization of switch 2. Therefore, the first coil and push-button switch 1 are connected in the same circuit. Furthermore, considering the subsequent control of the first conversion module 3 and the second conversion module 4, the first contact is connected in the same circuit as both modules. The energization and de-energization of the first coil controls the activation or de-energization of the first contact, thereby controlling the first conversion module 3 and the second conversion module 4. The pulse relay changes its state with each pulse, accurately realizing the function of activating switch 2. This application does not specifically limit the specific type, structure, or implementation method of the pulse relay. Figure 3 and Figure 4 For example, the start switch 2 is activated by relays K1 and K2.

[0051] Specifically, using a pulse relay as the start switch 2 can effectively realize the function of the start switch 2. The pulse relay only needs pulse excitation to control the contact action, which has low requirements for control signals, small size, low power consumption, strong load capacity, and can expand the control range. The circuit structure is simple and easy to implement. Under the premise of ensuring the accurate implementation of the clamp control circuit 21 of the turnout tamping car and ensuring track safety, the applicability and application scenarios of the entire clamp 22 control circuit are further expanded.

[0052] As an optional embodiment, the clamp includes an outer clamp and an inner clamp, the clamp opening valve includes a first opening valve 5 and a second opening valve 6, the conversion module includes a first conversion module 3 and a second conversion module 4, the control terminal of the first conversion module 3 and the control terminal of the second conversion module 4 are respectively connected to the second terminal of the start switch, the first conversion terminal of the first conversion module 3 is connected to the power supply, the second conversion terminal is connected to the control system of the turnout tamping machine, and the fixed terminal is connected to the first opening valve 5 of the clamp; the first conversion terminal of the second conversion module 4 is connected to the power supply, the second conversion terminal is connected to the control system of the turnout tamping machine, and the fixed terminal is connected to the second opening valve 6 of the clamp.

[0053] The first conversion module 3 is used to control its fixed end to connect with its first conversion end when it receives the second signal so that the outer clamp of the clamp opens, and to control its fixed end to connect with its second conversion end when it does not receive the second signal so that the clamp can be controlled normally by the control system of the turnout tamping machine.

[0054] The second conversion module 4 is used to control its fixed end to connect with its first conversion end when it receives the second signal so that the inner clamp of the clamp opens, and to control its fixed end to connect with its second conversion end when it does not receive the second signal so that the clamp can be controlled normally by the control system of the turnout tamping machine.

[0055] It is easy to understand that since clamp 22 usually includes inner clamp and outer clamp, and the inner clamp and outer clamp are operated by different solenoid valves, a first conversion module 3 is set to control the opening of the outer clamp of clamp 22, and a second conversion module 4 is set to control the opening of the inner clamp of clamp 22.

[0056] Specifically, when the turnout tamping machine needs to perform traveling operations or other clamp opening requirements, the operator issues a control command to button switch 1 to open clamp 22, causing button switch 1 to close. After button switch 1 closes, the output first signal is transmitted to the control terminal of start switch 2. When start switch 2 receives the first signal for the first time, since its initial state is off, start switch 2 will turn on based on the control of the first signal. After turning on, it will output a second signal to the control terminals of first conversion module 3 and second conversion module 4. After receiving the second signal, first conversion module 3 will switch the circuit, switching its fixed terminal from the connection state with the second conversion terminal to the connection state with the first conversion terminal, thereby opening the clamp. The first opening valve 5 corresponding to the outer clamp of clamp 22 is connected to the power supply VCC, energizing the first opening valve 5 of clamp 22, thereby forcibly opening the outer clamp. The second conversion module 4 works similarly to the first conversion module 3. After receiving the second signal, the second conversion module 4 switches the circuit, switching its fixed end from the connection state with the second conversion end to the connection state with the first conversion end, thereby connecting the second opening valve 6 corresponding to the inner clamp of clamp 22 to the power supply VCC, energizing the second opening valve 6 of clamp 22, thereby forcibly opening the inner clamp. The entire process is achieved by the combined control of the button switch 1, the start switch 2, the first conversion module 3, and the second conversion module 4, realizing the forced opening of clamp 22.

[0057] Specifically, the cooperation of the first conversion module 3 and the second conversion module 4 enables separate control of the inner and outer clamps of the clamp, further expanding the flexibility and application scenarios of the entire device and achieving accurate control of the outer and inner clamps of the clamp.

[0058] As an optional embodiment, the first conversion module 3 is a conversion relay, which includes a second coil and a second contact. The first end of the second coil is connected to the second end of the start switch 2 and the second end is grounded. The fixed end of the second contact is connected to the first opening valve 5 of the clamp 22. The first conversion end is connected to the power supply VCC and the second conversion end is connected to the control system 7 of the turnout tamping machine.

[0059] Considering the typically large distance between the start switch 2 and the first opening valve 5 of the clamp 22, the first conversion module 3 can be implemented using a conversion relay to further expand the control range and ensure the control process of the start switch 2 and the first conversion module 3 over the first opening valve 5. The start switch 2 controls the switching of the second contact by controlling the energization and de-energization of the second coil via a second signal, thereby realizing the switching process of the first conversion module 3. The second contact can be defaulted to be connected to the second conversion terminal. When the second coil is energized, the second contact switches from the second conversion terminal to the first conversion terminal, connecting the first conversion terminal to the fixed terminal. This allows the first opening valve 5 to be energized using the power supply VCC. In other words, the normally closed contact of the conversion relay is connected to the original vehicle control, and the normally open contact is connected to the working power. The working power forces the solenoid valve of the first opening valve 5 to be energized, thus maintaining the pressure in the large and small chambers of the four clamp cylinders, keeping the clamp 22 always open. The energization and de-energization of the original operating current of the original turnout tamping machine's control system 7 has no effect on the control valve. When the second coil is de-energized, the second contact will automatically return to the default state of the second switching terminal, thereby resetting the first opening valve 5. This application does not impose any specific limitations on the specific type, structure, or implementation method of the switching relay.

[0060] Specifically, using a conversion relay as the first conversion module 3 can effectively realize the function of the first conversion module 3. The conversion relay is energy-saving, fast-acting, long-lasting, small in size, stable in performance, and has a strong load-bearing capacity. It can also expand the control range. The circuit structure is simple and easy to implement. While ensuring the accurate implementation of the clamp control circuit 21 of the turnout tamping car and ensuring track safety, it further expands the applicability and application scenarios of the entire clamp 22 control circuit.

[0061] As an optional embodiment, the changeover relay also includes a third contact, the fixed end of which is connected to the first closing valve of the clamp 22, the first changeover terminal is open-circuited, and the second changeover terminal is connected to the control system 7 of the turnout tamping machine.

[0062] It is easy to understand that when the clamp 22 is forced open by the first opening valve 5, the first conversion module 3, i.e., the conversion relay, switches the first closing valve of the clamp 22 to the open circuit state, disconnecting it from the original control system 7 of the turnout tamping machine. This avoids control conflicts between the original control system 7 of the turnout tamping machine and the clamp control circuit 21 of the turnout tamping machine of this application, ensuring that the first closing valve of the clamp 22 does not work, and further ensuring the accurate realization of the forced opening process of the clamp 22. It should be noted that the first closing valve corresponds to the first opening valve 5 and is the closing valve corresponding to the outer clamp of the clamp 22.

[0063] Specifically, a third contact is added to the first conversion module 3 to connect with the first closing valve of the clamp 22. The third contact is used to make the first conversion module 3 control the first closing valve to disconnect during the forced opening of the external clamp, so that it does not work. This avoids the control conflict between the original control system 7 of the turnout tamping car and the clamp control circuit 21 of the turnout tamping car of this application, ensures the accurate implementation of the clamp control circuit 21 of the turnout tamping car, ensures the stable implementation of the forced opening process of the clamp 22, further ensures track safety, and avoids safety hazards during train operation.

[0064] It should be noted that the setup and implementation process of the second conversion module 4 are similar to those of the first conversion module 3, and can also be implemented using a conversion relay. This application will not elaborate further here; please refer to the above description of the first conversion module 3. Figure 3 and Figure 4 For example, the first conversion module 3 is implemented using relays K3 and K6, and the second conversion module 4 is implemented using relays K4 and K7. K3 includes a coil connected to contact K1, a first contact connected to the left external clamp closing valve 1S67A, and a second contact connected to the left external clamp opening valve 1S67B. The fixed end of the first contact is 11, the first conversion end is 14 (which is in the open state), and the second conversion end is 12. The fixed end of the second contact is 21, the first conversion end is 24, and the second conversion end is 22. The implementation methods of the coils and contacts of K4, K6, and K7 are the same as those of K3, and will not be repeated here. Please refer to the appendix. Figure 3 and attached Figure 4 .

[0065] Please refer to Figure 5 , Figure 5 This invention provides a schematic diagram of the button installation of a turnout tamping machine; as an optional embodiment, it also includes an auxiliary button switch, the first end of which is connected to the power supply VCC, and the second end of which is connected to the control terminal of the start switch 2.

[0066] Considering the large size of the turnout tamping machine, multiple operators may be needed to complete the task. For ease of use, an auxiliary push-button switch with the same function as push-button switch 1 can be added. The auxiliary push-button switch operates identically to push-button switch 1, differing mainly in its location. Taking both push-button switch 1 and the auxiliary push-button switch as examples, push-button switch 1 can be installed in the driver's cab, i.e., position 1, and the auxiliary push-button switch can be installed in positions 4 and / or 5. In practical applications, the operator in position 1 can directly control clamp 22, or the auxiliary operator in positions 4 and / or 5 can directly control clamp 22 using the auxiliary push-button switch after confirming the site conditions, further improving the accuracy of clamp control. Figure 5 For example, B64C-S1 and B64C-S2 are used as push-button switches 1, located at position 1. B64A and B64B are used as auxiliary push-button switches. B64A is installed in a suitable position at position 5, which can directly control the forced opening or resetting of the left clamp 22. B64B is installed in a suitable position at position 4, which can directly control the forced opening or resetting of the right clamp 22. Pressing the forced opening button of the left clamp 22 at position 1 or 5 will force the left clamp 22 to open. Similarly, pressing the forced opening button of the right clamp 22 at position 1 or 4 will force the right clamp 22 to open.

[0067] In practical applications, when working within the turnout area, operators at positions four and / or five can manually switch the operating mode via a secondary push-button switch. This forces the clamp 22 opening valve to energize, maintaining the pressure in the large and small chambers of the four clamp cylinders, ensuring that clamp 22 remains open. The energization or de-energization of the control system's original operating current has no effect. After completing work in the turnout area, the system switches back to the original vehicle control mode. Figure 5 For example, push-button switch 1B64C can be set in position one, that is, in the driver's cab, and controlled by two buttons. It is labeled "Clamp 22 Open," indicating that this button is used to force clamp 22 to open. At the same time, the left arrow above indicates that one button controls the left clamp 22, and the right arrow above indicates that the other button controls the right clamp 22. The auxiliary push-button switches B64A and B64B are set in positions four and five, respectively, and controlled by one button. They are also labeled "Clamp 22 Open," indicating that this button is used to force clamp 22 to open.

[0068] Specifically, the addition of an auxiliary push-button switch makes the clamp control circuit 21 of the turnout tamping machine more convenient in controlling the clamp 22, further adapting it to the actual operation process, making it convenient, quick, saving operation time, and improving work efficiency.

[0069] As an optional embodiment, a light-emitting diode is also included, with a first terminal of the light-emitting diode connected to a second terminal of the start switch 2, and the second terminal grounded.

[0070] Considering that it is difficult to confirm the working status of clamp 22 in real time from the driver's cab (position 1), a light-emitting diode (LED) indicator is added. The LED is connected to the start switch 2. The working process of clamp 22 is detected by monitoring the operation of the start switch 2. It is easy to understand that when the start switch 2 is on, the LED is lit, indicating that clamp 22 is in a forced-open state; when the start switch 2 is off, the LED is off, indicating that clamp 22 is not in a forced-open state. This application does not specifically limit the specific type, number, or implementation method of the LEDs. Indicator lights can be set one-to-one with clamp 22, or they can be set one-to-one with solenoid valves. Figure 3 and Figure 4 For example, the working process of clamp 22 is monitored by LEDs 1B2, 1B3, 1B6 and 1B7.

[0071] Specifically, an LED is added to monitor the working status of the clamp 22, allowing the operator to confirm the working status of the clamp 22 in real time. This avoids misoperation due to untimely observation, further ensuring the accuracy and reliability of the clamp control circuit 21 of the turnout tamping machine, further guaranteeing track safety, and ensuring the accurate implementation of the turnout tamping machine's working process.

[0072] As an optional embodiment, it also includes a proximity switch, the first end of which is connected to the power supply VCC, and the second end of which is connected to the second end of the push button switch 1 and the control end of the start switch 2 respectively;

[0073] The inductive switch is used to turn on when a preset track is detected to output a first signal to control the start switch 2, and to turn off when no preset track is detected.

[0074] Considering that control via button switch 1 alone might be untimely, a sensor switch is added. It's easy to understand that the sensor switch's control process for start switch 2 is the same as that of button switch 1 and start switch 2. The sensor switch can detect a preset track, i.e., a track segment of a preset shape. When the shape corresponding to the preset track is detected, it directly outputs a first signal, thereby forcibly opening the clamp 22 through start switch 2, the first conversion module 3, and the second conversion module 4, thus achieving the automatic sensing and opening process of clamp 22. This application does not specifically limit the specific type, number, or implementation method of the sensor switch.

[0075] It's easy to understand that, to ensure the sensing effect of the inductive switch, it is usually placed at the very front of the turnout tamping car. Taking the curved track inductive switch as an example, when the turnout tamping car has a left clamp 22 and a right clamp 22, a left curved track inductive switch and a right curved track inductive switch can be added at the preset measurement position of the turnout tamping car, respectively. When the left curved track inductive switch receives a signal, that is, when the preset track is detected, it controls the left clamp 22 to open automatically. When the right curved track inductive switch receives a signal, that is, when the preset track is detected, it controls the right clamp 22 to open automatically. In automatic sensing mode, a turnout detection switch, that is, an inductive switch, is installed on the detection trolley at the front of the turnout tamping car. After detecting the corresponding turnout signal, it automatically forces the clamp 22 control valve to be energized, and the clamp 22 opens, rendering the control current of the original turnout tamping car control system 7 invalid. Figure 3 and Figure 4 For example, the inductive switch includes a left curved inductive switch SQ1 and a right curved inductive switch SQ2.

[0076] It should be noted that the signal detected by the inductive switch can be a pulse signal. After the clamp 22 automatically opens, it needs to be manually reset and confirmed by using the button switch 1 at position 1, position 4 or position 5. That is, when the button switch 1 is in the form of a button, it needs to be pressed to reset before the automatic opening of the inductive switch can take effect again. This avoids the problem of the inductive switch being difficult to control due to frequent detection of the preset track when the track conditions are relatively complex, which causes the start switch 2 to frequently malfunction.

[0077] Specifically, an inductive switch is added to perform the same function as the push-button switch 1. The inductive switch enables automatic control and prevents the operator from forgetting to open the clamp 22 via the push-button switch 1 or manually cutting off the hydraulic circuit when the switch is in operation. This would prevent the clamp 22 from being in a state of natural weightlessness and further ensure the accuracy and reliability of the clamp control circuit 21 of the switch tamping machine, thus further guaranteeing the safety of the track.

[0078] As an optional embodiment, a reset switch is also included. The first end of the reset switch is connected to the second end of the inductive switch, and the second end is connected to the second end of the push button switch 1 and the control end of the start switch 2, respectively. The control end is connected to the second end of the start switch 2.

[0079] The reset switch is used to turn off the inductive switch to stop outputting the first signal when the second signal is received, and to turn on the switch when the second signal is not received.

[0080] Considering that when the track conditions are complex, the inductive switch may frequently detect the preset track multiple times, making it difficult to control and causing frequent malfunctions of the start switch 2, a reset switch is added. When the reset switch detects the second signal, i.e., when the start switch 2 is turned on, it cuts off the control circuit between the inductive switch and the start switch 2, ensuring that the clamp 22 remains in a forced open state after the inductive switch detects the preset track. When no second signal is detected, i.e., when the start switch 2 is turned off, it turns on to ensure the effective control of the start switch 2 by the inductive switch. This application does not specifically limit the specific type, structure, and implementation of the reset switch; it can be implemented using a changeover relay or other switching devices. Figure 3 and Figure 4 For example, relays K5 and K8 are used to realize the function of the reset switch. The coil of K5 is connected to the contact of K1, which is the start switch 2. The changeover contact is connected to the inductive switch. 11 represents the fixed end of the changeover contact, and 12 and 14 represent the two changeover ends of the changeover contact, respectively. When 12 and 11 are connected, the inductive switch can output the first signal. When 14 and 11 are connected, 14 is in the open state, so the inductive switch cannot output the first signal to the start switch 2.

[0081] It is easy to understand that when the inductive switch detects the preset track for the first time, it will turn on the start switch 2, thereby forcibly opening the clamp 22. However, if there is an interruption between the detected preset track and the next preset track, the inductive switch will turn off when the interruption occurs and close again at the next preset track. This situation will cause the start switch 2 to receive the first signal and turn off again, preventing the clamp 22 from continuing to be forcibly opened and causing damage to the track. The start switch 2 has malfunctioned. To avoid this situation, this embodiment adds a reset switch so that the inductive switch is no longer connected to the start switch 2 after issuing the first signal. After leaving the turnout area, it needs to be manually switched by the button switch 1. The first signal of the button switch 1 returns the clamp 22 to the original vehicle control mode of the turnout tamping car control system 7, thereby ensuring the accurate implementation of the control process of the clamp 22 and making the reset switch turn on again to ensure the inductive switch works again.

[0082] Specifically, by adding a reset switch, the process of malfunction of the start switch 2 caused by repeated operation of the inductive switch is avoided, further ensuring the accuracy and reliability of the clamp control circuit 21 of the turnout tamping car. The circuit structure is simple and easy to implement, further avoiding damage to the track by the clamp 22 in the closed state, ensuring track safety and avoiding safety hazards during train operation.

[0083] In practical applications, the number of push-button switches 1, the number of auxiliary push-button switches, the number of start switches 2, the number of first conversion modules 3, the number of second conversion modules 4, and the number of inductive switches should be consistent with the number of clamps 22 of the turnout tamping machine. As a specific embodiment, when the turnout tamping machine has two clamps 22, namely a left clamp 22 and a right clamp 22, ... Figure 3 and Figure 4 For example, 1S67A represents the closing valve of the left outer clamp, 1S67B represents the opening valve of the left outer clamp, 1S68A represents the closing valve of the left inner clamp, 1S68B represents the opening valve of the left inner clamp, 1S69A represents the closing valve of the right outer clamp, 1S69B represents the opening valve of the right outer clamp, 1S70A represents the closing valve of the right inner clamp, and 1S70B represents the opening valve of the right inner clamp.

[0084] Specifically, the clamp 22 can be forcibly opened by automatic sensing or by pressing the clamp 22 forced opening button; the inductive switches include a left curved strand inductive switch SQ1 and a right curved strand inductive switch SQ2, and to ensure the effectiveness of the inductive switches, the left curved strand inductive switch SQ1 and the right curved strand inductive switch SQ2 are installed in box B4, and box B4 is located at the front end of the turnout tamping machine; the push-button switch 1 includes a first push-button switch +B64C-S1 and a second push-button switch +B64C-S2, and additionally installed a first auxiliary push-button switch +B64A-S1 and a second auxiliary push-button switch +B64B-S1, particularly, the first Both the first and second inductive switches are curved-strand inductive switches, which close when a curved strand is detected. The push-button switch 1 and the auxiliary push-button switch are illuminated buttons. When the button is pressed, the corresponding push-button switch 1 or the auxiliary push-button switch closes. When the inductive switch, push-button switch 1 or the auxiliary push-button switch closes, relays K1 and K2 close as start switch 2, which energizes coils K3, K4, K6 and K7. The corresponding contacts K3, K4, K6 and K7 actuate, cutting off the original vehicle control system and connecting the working electrical control, that is, connecting to the power supply VCC through the Si35 port of B7. At this time, the clamp 22 opening valve is forcibly energized and the closing valve is de-energized.

[0085] Both push-button switch 1 and the auxiliary push-button switch are green, illuminated, self-resetting buttons. When the corresponding light illuminates, it indicates that the clamp 22 on that side has automatically opened or been manually forced to open. When the clamp opening button is reset, the indicator light on the corresponding side goes out, indicating that the automatic opening has been reactivated. When both clamp opening indicator lights are off, it indicates that clamp 22 has returned to its original vehicle control function.

[0086] It should be noted that the clamp control circuit 21 of the turnout tamping machine may need to be implemented in multiple different control boxes in actual applications. In this case, this application does not specifically limit the connection methods between the various parts of the clamp 22 control circuit. The specific parameters and types of the cables used can be selected and set according to the specific situation of the turnout tamping machine, as shown in Table 1. Table 1 shows the correspondence between the various solenoid valves of the clamp 22 and the cable numbers in the turnout tamping machine. Furthermore, when it comes to the connection between different control boxes, such as... Figure 4 As shown, box B7 needs to be connected to box B69 via jumper wires, and box B7 is connected via ports QLB1-QLB8 of box B69. Figure 3 As shown, the connection between boxes B4 and B7 is achieved through corresponding JQ1 and JQ2 ports. This application does not impose specific limitations on the types and parameters of the various components in the control circuit. K1 and K2 can be implemented using 16A relays. Diodes V1, V2, V3, V4, V5, and V6 prevent backflow of current and further protect the circuit; they can be implemented using 3A diodes. The LED color can be green for easy observation. K3, K4, K5, K6, K7, and K8 can be implemented using 6A relays.

[0087] Table 1. Correspondence between the solenoid valve of the clamp and the cable number in the turnout tamping machine.

[0088]

[0089]

[0090] Please refer to Figure 6 , Figure 6 The present invention provides a structural schematic diagram of a clamping system; to solve the above-mentioned technical problems, the present invention also provides a clamping system 23 for a turnout tamping car, including clamps 22 and a clamping control circuit 21 for the turnout tamping car as described above, wherein the clamping control circuit 21 for the turnout tamping car is connected to the clamps 22.

[0091] For a description of the clamping system 23 of the turnout tamping machine provided in this application, please refer to the embodiment of the clamping control circuit 21 of the turnout tamping machine described above. The present invention will not be described again here.

[0092] Please refer to Figure 7 , Figure 7 This is a schematic diagram of the structure of a turnout tamping machine provided by the present invention; please refer to... Figure 8 , Figure 8 A top view of a turnout tamping machine provided by the present invention; please refer to... Figure 9 , Figure 9This is a front view of a turnout tamping machine provided by the present invention. To solve the above-mentioned technical problems, the present invention also provides a turnout tamping machine, including a control system 7 for the turnout tamping machine and a clamping system 23 for the turnout tamping machine as described above, wherein the control system 7 for the turnout tamping machine is connected to the clamps 22 in the clamping system 23 of the turnout tamping machine.

[0093] Specifically, this application does not impose any particular restrictions on the control system 7 of the turnout tamping machine or the specific types and implementation methods of other structures in the turnout tamping machine. Different types and structures of turnout tamping machines can be selected according to actual application requirements.

[0094] For an introduction to the turnout tamping machine provided in this application, please refer to the embodiment of the clamp control circuit 21 of the turnout tamping machine described above. The present invention will not be described again here.

[0095] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0096] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0097] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A clamp control circuit for a turnout tamping machine, characterized in that, The turnout tamping machine includes clamps. The control circuit includes a push-button switch, a start switch, and a conversion module. The first end of the push-button switch is connected to the power supply, and the second end of the push-button switch is connected to the control end of the start switch. The first end of the start switch is connected to the power supply, and the second end is connected to the control end of the conversion module. The first conversion end of the conversion module is connected to the power supply, the second conversion end is connected to the control system of the turnout tamping machine, and the fixed end is connected to the opening valve of the clamps. The push-button switch is used to close when a control command is received to output a first signal to control the start switch, and to open when no control command is received. The start switch is used to turn on when the first signal is received in the off state to output a second signal to control the conversion module, and to turn off when the first signal is received in the on state. The initial state of the start switch is the off state. The conversion module is used to control its fixed end to connect with its first conversion end when it receives the second signal so that the clamp opens, so that the clamp always stays open when the turnout tamping machine is working in the turnout area; and to control its fixed end to connect with its second conversion end when it does not receive the second signal so that the clamp works normally under the control of the turnout tamping machine's control system. It also includes a sensor switch, the first end of which is connected to the power supply, and the second end of which is connected to the second end of the push button switch and the control end of the start switch, respectively. The inductive switch is used to turn on when a preset track is detected to output the first signal to control the start switch, so that the clamps of the turnout tamping machine are always kept open when the turnout tamping machine is working in the turnout area, and are disconnected when no preset track is detected. The clamp includes an outer clamp and an inner clamp. The clamp's opening valve includes a first opening valve and a second opening valve. The conversion module includes a first conversion module and a second conversion module. The control terminals of the first conversion module and the second conversion module are respectively connected to the second terminal of the start switch. The first conversion terminal of the first conversion module is connected to the power supply, and the second conversion terminal is connected to the control system of the turnout tamping machine. The fixed terminal is connected to the first opening valve of the clamp. The first conversion terminal of the second conversion module is connected to the power supply, and the second conversion terminal is connected to the control system of the turnout tamping machine. The fixed terminal is connected to the second opening valve of the clamp. The first conversion module is used to control its own fixed end to connect with its own first conversion end when it receives the second signal so that the outer clamp of the clamp opens; and to control its own fixed end to connect with its own second conversion end when it does not receive the second signal so that the clamp works normally under the control of the control system of the turnout tamping machine. The second conversion module is used to control its fixed end to connect with its first conversion end when it receives the second signal so that the inner clamp of the clamp opens, and to control its fixed end to connect with its second conversion end when it does not receive the second signal so that the clamp works normally under the control of the control system of the turnout tamping machine. The start switch is a pulse relay, which includes a first coil and a first contact. The first end of the first coil is connected to the second end of the push-button switch, and the second end is grounded. The first end of the first contact is connected to the power supply, and the second end is connected to the control terminal of the first conversion module and the control terminal of the second conversion module, respectively. The first conversion module is a conversion relay, which includes a second coil and a second contact. The first end of the second coil is connected to the second end of the start switch, and the second end is grounded. The fixed end of the second contact is connected to the first opening valve of the clamp, and the first conversion end is connected to the power supply. The changeover relay also includes a third contact, the fixed end of which is connected to the first closing valve of the clamp, and the first changeover end is disconnected.

2. The clamp control circuit of the turnout tamping machine as described in claim 1, characterized in that, It also includes a secondary push-button switch, the first end of which is connected to the power supply, and the second end of which is connected to the control terminal of the start switch.

3. The clamp control circuit of the turnout tamping machine as described in claim 1, characterized in that, It also includes a light-emitting diode, the first end of which is connected to the second end of the start switch, and the second end is grounded.

4. The clamp control circuit of the turnout tamping machine as described in claim 1, characterized in that, It also includes a reset switch, the first end of which is connected to the second end of the inductive switch, and the second end is connected to the second end of the push button switch and the control end of the start switch, with the control end connected to the second end of the start switch; The reset switch is used to turn off when the second signal is received so that the inductive switch stops outputting the first signal, and to turn on when the second signal is not received.

5. A clamping system for a turnout tamping machine, characterized in that, It includes clamps and a clamp control circuit for a turnout tamping machine as described in any one of claims 1 to 4, wherein the clamp control circuit of the turnout tamping machine is connected to the clamps.

6. A turnout tamping machine, characterized in that, It includes a control system for a turnout tamping machine and a clamping system for the turnout tamping machine as described in claim 5, wherein the control system for the turnout tamping machine is connected to the clamps in the clamping system of the turnout tamping machine.

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