Point switch capable of automatically adjusting close fit degree of switch rail and base rail

Abstract

The utility model discloses a switch machine capable of automatically adjusting the close fit degree of switch rails and base rails, which comprises a switch machine body, a controller and a position identification device, the switch machine body is provided with an indicating rod and a power rod which are parallel to each other and are distributed at intervals, and the indicating rod and the power rod both penetrate between the two base rails and are both in transmission connection with the two switch rails. The switch body drives the power rod to stretch out and draw back till any switch rail is adjusted to be attached to the corresponding foundation rail, the indicating rod moves along with the two switch rails and indicates whether the switch rails are attached to the corresponding foundation rails or not, and the position recognition device is arranged in the switch body and used for recognizing the position of the end, located in the switch body, of the indicating rod. According to the switch machine, when the switch rail is driven to be attached to the corresponding base rail, if a gap exists between the switch rail and the base rail during attachment, the length of the power rod can be automatically adjusted so as to compensate the gap, and the automation degree of the switch machine is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of tracks, and particularly relates to a switch machine which can automatically adjust the closeness between a point rail and a base rail. Background Art

[0002] The switch machine is the actuator of the turnout control system. It is used to switch and lock the two point rails of the turnout and swing between the two base rails so that any one of the point rails can fit with the corresponding base rail. Among them, the two point rails and the two base rails can only fit one of them to conduct the turnout. However, in the actual operation process, due to weather changes (temperature), the thermal expansion and contraction of the rails will cause a gap between the point rails at the railway turnout and the corresponding base rails. If the gap is too large (which will cause the turnout to "open four ways" and there is a risk of overturning when the train passes by), the track circuit monitoring will not be able to send a normal arrival signal. At this time, the control station will send a signal to the train to inform it of an abnormality at the turnout and make an emergency stop due to safety needs.

[0003] In the current prior art, a railway turnout includes two base rails 2, two point rails 3, two straight rails 6 and two curved rails 7. The two straight rails and the two curved rails correspond to the two base rails one by one. The installation diagram is shown in FIG. Figure 1 and Figure 2 As shown, the two point rails are located between the two base rails near one end of the straight rail and the curved rail, and the two point rails are connected together and are adjusted by the transfer machine between the two base rails to be close to the base rail on either side to achieve the switch of the turnout, as shown in FIG. Figure 1 As shown in , the two pointed rails are closely attached to the base rails near the transfer machine under the action of the transfer machine. At this time, the two curved rails are connected to the two base rails, and the train turns (for the transfer machine, it is in the reverse position at this time); or as Figure 2 As shown, when the other point rail is in close contact with the other base rail under the action of the switch-withdrawing machine, the two straight rails are connected with the two base rails, and the train goes straight (for the switch-withdrawing machine, it is in a positioning state at this time). Utility Model Content

[0004] In order to solve the above technical problems, the purpose of the utility model is to provide a switch machine with a simple structure, and when a power rod drives the point rail to fit with the corresponding base rail, if there is a gap between the point rail and the extruded rail, the power rod can be automatically adjusted to continue to drive the point rail to move to fit closely with the base rail.

[0005] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows: a switch machine that automatically adjusts the fit between the point rail and the base rail, including a switch machine body, the switch machine body having an indicator rod and a power rod that are parallel to each other and spaced apart, the indicator rod and the power rod both penetrate between the two base rails, and are both transmission-connected to the two point rails, the switch machine body drives the power rod to extend and retract to adjust any one of the point rails to fit the corresponding base rail, and the indicator rod moves with the two point rails and indicates whether the point rail is in fit with the corresponding base rail, and also includes a controller and a position identification device, the position identification device is arranged in the switch machine body, and is used to identify the position of one end of the indicator rod located in the switch machine body, the power rod is an electric length adjustment rod, and the position identification device and the power rod are both electrically connected to the controller.

[0006] The beneficial effect of the above technical solution is that when the switch and withdrawal machine body drives the point rail to move to the positioning or reverse position through the power rod to fit with the corresponding base rail, if the point rails or base rails that fit each other are not actually fit, and there is a gap between the two, the position recognition device will recognize the position of the end of the indicator rod to determine the size of the gap between the point rail and the corresponding base rail. If the size of the gap affects the driving safety, the controller will control the power rod to extend or contract to compensate for the gap between the corresponding point rail and the base rail, so that the point rail and the corresponding base rail remain in fit. In this way, the size of the gap can be self-monitored, and the length of the power rod can be automatically adjusted to compensate for the gap between the point rail and the corresponding base rail to ensure driving safety.

[0007] The position identification device in the above technical solution is a rangefinder, and the distance measuring probe of the position identification device is aligned with one end of the indicator rod located in the transfer and withdrawal machine body, which is used to measure the distance between one end of the indicator rod located in the transfer and withdrawal machine body and the position identification device.

[0008] The beneficial effects of the above technical solution are: its structure is simple and its measurement accuracy is high.

[0009] The position identification device described in the above technical solution is a laser ranging probe or a radar ranging probe.

[0010] The beneficial effect of the above technical solution is that it has a simple structure.

[0011] The position identification device in the above technical solution is a scale, which is arranged in the transfer and withdrawal machine body along the length direction of the sliding of the indicator rod, and its measuring end is transmission-connected to one end of the indicator rod located in the transfer and withdrawal machine body.

[0012] The beneficial effects of the above technical solution are: it has a simple structure, high measurement accuracy, and little environmental interference.

[0013] The position identification device in the above technical solution is a grating ruler or a magnetic grating ruler.

[0014] The beneficial effect of the above technical solution is that it has a simple structure.

[0015] The power rod in the above technical solution includes a length adjusting piece and two sub-rod bodies, the two sub-rod bodies are coaxially spaced apart, and the ends of the two sub-rod bodies that are close to each other are connected by the length adjusting piece, the ends of the two sub-rod bodies that are far away from each other constitute the two ends of the power rod, and the length adjusting piece is used to adjust the distance between the two sub-rod bodies.

[0016] The beneficial effects of the above technical solution are: its structure is simple and the length of the power rod can be easily adjusted, so that the length of the power rod can be adjusted automatically.

[0017] The length adjustment member in the above technical solution includes a telescopic member and two connecting plates, the two connecting plates are respectively installed on one end of the two sub-rod bodies close to each other, and the telescopic member is installed on one of the connecting plates, the telescopic end of the telescopic member is connected to the other connecting plate, and the telescopic member is telescoped to adjust the two connecting plates to drive the two sub-rod bodies to move closer to each other or away from each other.

[0018] The beneficial effects of the above technical solution are: its structure is simple, and the entire length adjustment member is compactly installed at the connection of the two sub-rod bodies.

[0019] The connecting plate in the above technical solution is a strip plate, and one end of which is vertically connected to the end of the corresponding sub-rod body. The telescopic member is installed at the other end of the corresponding connecting plate and is located on the side of the corresponding connecting plate away from the other connecting plate. The telescopic end of the telescopic member passes through the corresponding connecting plate and is connected to the other connecting plate.

[0020] The beneficial effects of the above technical solution are: its structure is simple, and the two connecting plates provide installation sites for the telescopic member.

[0021] In the above technical solution, a reinforcing plate is provided at the connection between the connecting plate and the corresponding sub-rod body.

[0022] The beneficial effect of the above technical solution is that it can prevent the connection between the connecting plate and the sub-rod body from bending under the action of the telescopic member.

[0023] The telescopic member described in the above technical solution is a telescopic electric cylinder.

[0024] The beneficial effect of the above technical solution is that it has a simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of a turnout in the prior art in a reverse position under the action of a turnout machine;

[0026] Figure 2 It is a schematic diagram of a turnout in a positioning state under the action of a turnout machine in the prior art;

[0027] Figure 3 This is a schematic diagram of the distribution of the position identification device and the indicator rod in the transfer and withdrawal machine body in Example 1 of the utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the power rod in Embodiment 1 of the present utility model;

[0029] Figure 5 This is a schematic diagram of the installation of the connecting plate, reinforcing plate and sub-rod body described in Example 1 of the utility model;

[0030] Figure 6 The four indication state diagrams of the indicator rod in Embodiment 1 of the present utility model are shown;

[0031] Figure 7 This is a schematic diagram of electrical connections of the controller in Embodiment 1 of the present utility model;

[0032] Figure 8 This is a schematic diagram of the distribution of the position identification device and the indicator rod in the transfer and withdrawal machine body described in Example 2 of the utility model.

[0033] In the figure: 1 the main body of the retractor; 11 the indicator rod; 12 the power rod; 121 the length adjusting member; 1211 the telescopic member; 1212 the connecting plate; 1213 the reinforcing plate; 122 the sub-rod body; 2 the basic rail; 3 the pointed rail; 4 the controller; 5 the position identification device; 6 the straight rail; 7 the curved rail. DETAILED DESCRIPTION

[0034] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0035] Example 1

[0036] like Figure 1-Figure 7As shown, this embodiment provides a switch machine that automatically adjusts the fit between the point rail and the base rail, including a switch machine body 1, a controller 4 and a position identification device 5. The switch machine body 1 has an indicator rod 11 and a power rod 12 that are parallel to each other and spaced apart. The indicator rod 11 and the power rod 12 are both inserted between the two base rails 2 and are both transmission-connected to the two point rails 3. The switch machine body 1 drives the power rod 12 to extend and retract to adjust any one of the point rails 3 to fit the corresponding base rail 2, and the indicator rod 11 moves with the two point rails 3 and indicates whether the point rail 3 fits the corresponding base rail 2. The position identification device 5 is arranged in the switch machine body 1, and is used to identify the position of one end of the indicator rod 11 located in the switch machine body 1. The power rod 12 is The electric length adjustment rod, the position identification device 5 and the power rod 12 are electrically connected to the controller 4, so that when the switch and withdrawal machine body drives the point rail to move to the positioning or reverse position through the power rod to fit with the corresponding base rail, if the point rails or base rails that fit each other are not actually fit, and there is a gap between the two, the position identification device will identify the position of the end of the indicator rod to determine the size of the gap between the point rail and the corresponding base rail. If the size of the gap affects the driving safety, the controller will control the power rod to extend or contract to compensate for the gap between the corresponding point rail and the base rail, so that the point rail and the corresponding base rail remain in fit. In this way, the size of the gap can be self-monitored, and the length of the power rod can be automatically adjusted to compensate for the gap between the point rail and the corresponding base rail to ensure driving safety.

[0037] Among them, the spacing between the two pointed rails is always kept constant, and both are connected to the power rod and the indicator rod. The specific installation method of the two pointed rails between the two base rails and the connection method of the power rod and the indicator rod with the two pointed rails are all prior art and will not be described in detail here (the positioning state and the reverse position state of the transfer machine are also prior art and will not be described in detail here)

[0038] like Figure 3 and Figure 6 As shown, the position identification device 5 in the above technical solution is a rangefinder, and the ranging probe of the position identification device 5 is aligned with one end of the indicator rod 11 located in the transfer and withdrawal machine body 1, which is used to measure the distance between the end of the indicator rod 11 located in the transfer and withdrawal machine body 1 and the position identification device 5. It has a simple structure and high measurement accuracy. Preferably, the position identification device 5 is a laser ranging probe or a radar ranging probe with a simple structure.

[0039] in, Figure 6The dotted line a and the dotted line b respectively indicate that when the transfer and evacuation machine is in the positioning position and the reverse position, the indicator rod is located at two positions at one end of the transfer and evacuation machine body, that is, the maximum reciprocating stroke of the indicator rod at one end of the transfer and evacuation machine body is the two position points of the dotted line a and the dotted line b. Figure 6 As shown in FIG. , when the transfer and evacuation machine is in operation, there are four states of the indicator rod, namely Figure 6 In the A state, B state, C state and D state, among them, state A and state B are both normal states (indicating that the switch is in the positioning and reverse position states respectively), while state C and state D are abnormal states. At this time, the two point rails are not in contact with the two base rails. For the turnout, it is in the "four-open state" at this time (specifically, state C and state D respectively indicate the positioning state or the negative position state, at this time the point rails in the corresponding position are not in contact with the corresponding base rails). This requires the extension or contraction of the power rod to drive the point rail to move to fit with the base rail on either side (in state C, the power rod needs to shorten itself to compensate for the gap, while in state D, the power rod needs to extend itself to compensate for the gap).

[0040] In this embodiment, the position recognition device 5 recognizes the position of the indicator rod at one end in the transfer machine body based on Figure 6 The principle is similar to that shown in FIG. 1 , and it can be specifically measured that the end of the indicator rod located in the transfer machine body is Figure 6 In the prior art, the power rod is a manual length adjustment rod. At this time, when the transfer machine recognizes that the indicator rod is in state C or state D, it will send information to the terminal device, and the staff will arrive at the site to adjust the length of the power rod, but the prior art has the problem of low efficiency.

[0041] like Figure 4As shown, the power rod 12 in the above technical solution includes a length adjustment member 121 and two sub-rod bodies 122, the two sub-rod bodies 122 are coaxially spaced, and the ends of the two sub-rod bodies 122 close to each other are connected by the length adjustment member 121, and the ends of the two sub-rod bodies 122 far away from each other constitute the two ends of the power rod 12, and the length adjustment member 121 is used to adjust the distance between the two sub-rod bodies 122, which has a simple structure and makes it convenient to adjust the length of the power rod, so that the length of the power rod can be adjusted by itself; specifically, the length adjustment member 121 The section 121 includes a telescopic member 1211 and two connecting plates 1212. The two connecting plates 1212 are respectively installed at one end of the two sub-rod bodies 122 that are close to each other, and the telescopic member 1211 is installed on one of the connecting plates 1212. The telescopic end of the telescopic member 1211 is connected to the other connecting plate 1212. The telescopic member 1211 is telescoped to adjust the two connecting plates 1212 to drive the two sub-rod bodies 122 to move closer to or away from each other. It has a simple structure, and the entire length adjustment member is compactly installed at the connection between the two sub-rod bodies.

[0042] like Figure 5 As shown, the connecting plate 1212 in the above technical solution is a strip plate, and one end of which is vertically connected to the end of the corresponding sub-rod body 122, and the telescopic member 1211 is installed at the other end of the corresponding connecting plate 1212, and is located on the side of the corresponding connecting plate 1212 away from the other connecting plate 1212, and the telescopic end of the telescopic member 1211 passes through the corresponding connecting plate 1212 and is connected to the other connecting plate 1212, and its structure is simple, and the two connecting plates provide installation sites for the telescopic member. Specifically, a reinforcing plate 1213 is provided at the connection between the connecting plate 1212 and the corresponding sub-rod body 122, so as to prevent the connection between the connecting plate and the sub-rod body from bending under the action of the telescopic member. Preferably, two spaced-apart reinforcing plates are provided on one side of each connecting plate close to the corresponding sub-rod body, and the reinforcing plate is a right triangle, one straight side of which is connected to the connecting plate, and the other straight side of which is connected to the corresponding sub-rod body, and the connection between the sub-rod body and the connecting plate is located between the two reinforcing plates. Further preferably, the telescopic member is also located between the corresponding two reinforcing plates.

[0043] like Figure 7 As shown, the telescopic member 1211 in the above technical solution is a telescopic electric cylinder, which has a simple structure, wherein the telescopic member 1211 is electrically connected to the controller.

[0044] The controller described in this embodiment can adopt an ARM series single-chip microcomputer, and the controller can be installed in the transfer and withdrawal machine body. The telescopic part described in this embodiment is located outside the transfer and withdrawal machine body, so it can choose a telescopic electric cylinder with waterproof performance, so that it is not afraid of wind and sun, and has good durability.

[0045] The core technology of this embodiment is to add a controller and a position identification device 5 on the basis of the existing switch and withdrawal machine, and use an electric length adjustment rod for the power rod. In this way, when the "four-open" phenomenon occurs in the turnout, the extension and contraction amount of the power rod of the switch and withdrawal machine is compensated to ensure that the turnout can only be in a positioned state or a reversed state (other matters not described in detail in this embodiment can be understood as existing technologies).

[0046] Definition: Positioning state refers to the state in which the train is moving straight when passing through the switch (e.g. Figure 2 ), while the reverse state indicates that the train is turning when passing through the switch (as shown in Figure 1 shown).

[0047] Example 2

[0048] Same as Example 1, except that Figure 8 As shown, the position identification device 5 in the above technical solution is a scale, and the position identification device 5 is fixedly installed in the transfer and withdrawal machine body 1 along the length direction of the sliding of the indicator rod 11, and its measuring end is transmission connected to one end of the indicator rod 11 located in the transfer and withdrawal machine body 1, and its structure is simple, and the measurement accuracy is high, and it is less affected by environmental interference.

[0049] The position identification device 5 in the above technical solution is a grating scale or a magnetic scale, and its structure is simple.

[0050] In this embodiment, the position recognition device 5 adopts a grating ruler and a magnetic ruler, and its principle of measuring the position of the indicator rod is similar to that of the embodiment 1 (in the embodiment 1, the position recognition device and the indicator rod are not in contact, while in this embodiment, the measuring end of the position recognition device is connected to the indicator rod and moves synchronously with the indicator rod to measure the position of the indicator rod in the transfer machine body). Figure 6 in what state).

[0051] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A switch machine for automatically adjusting the closeness between a point rail and a base rail, comprising a switch machine body (1), wherein the switch machine body (1) has an indicator rod (11) and a power rod (12) which are parallel to each other and spaced apart, wherein the indicator rod (11) and the power rod (12) are both inserted between two base rails (2) and are both transmission-connected with the two point rails (3), wherein the switch machine body (1) drives the power rod (12) to extend and retract to adjust any one of the point rails (3) to be in close contact with the corresponding base rail (2), and the indicator rod (11) moves with the two point rails (3) and indicates whether the point rail (3) is in close contact with the corresponding base rail (2), wherein: It also comprises a controller (4) and a position identification device (5), wherein the position identification device (5) is arranged in the transfer and evacuation machine body (1) and is used to identify the position of one end of the indicator rod (11) located in the transfer and evacuation machine body (1), and the power rod (12) is an electric length adjustment rod, and the position identification device (5) and the power rod (12) are both electrically connected to the controller (4).

2. The switch machine for automatically adjusting the closeness between the point rail and the base rail according to claim 1, characterized in that: The position identification device (5) is a distance meter, and the distance measuring probe of the position identification device (5) is aligned with one end of the indicator rod (11) located inside the transfer and evacuation machine body (1), and is used to measure the distance between the one end of the indicator rod (11) located inside the transfer and evacuation machine body (1) and the position identification device (5).

3. The switch machine for automatically adjusting the closeness between the point rail and the base rail according to claim 2, characterized in that: The position identification device (5) is a laser ranging probe or a radar ranging probe.

4. The switch machine for automatically adjusting the closeness between the point rail and the base rail according to claim 1, characterized in that: The position identification device (5) is a scale, and the position identification device (5) is arranged in the transfer and withdrawal machine body (1) along the length direction of the sliding of the indicator rod (11), and its measuring end is transmission-connected to one end of the indicator rod (11) located in the transfer and withdrawal machine body (1).

5. The switch machine for automatically adjusting the closeness between the point rail and the base rail according to claim 4, characterized in that: The position identification device (5) is a grating ruler or a magnetic grating ruler.

6. The switch machine for automatically adjusting the closeness between the point rail and the base rail according to claim 1, characterized in that: The power rod (12) comprises a length adjustment member (121) and two sub-rod bodies (122), the two sub-rod bodies (122) are coaxially spaced and distributed, and the ends of the two sub-rod bodies (122) that are close to each other are connected through the length adjustment member (121), and the ends of the two sub-rod bodies (122) that are far away from each other constitute the two ends of the power rod (12), and the length adjustment member (121) is used to adjust the distance between the two sub-rod bodies (122).

7. The switch machine for automatically adjusting the closeness between the point rail and the base rail according to claim 6, characterized in that: The length adjustment member (121) comprises a telescopic member (1211) and two connecting plates (1212); the two connecting plates (1212) are respectively mounted on ends of the two sub-rod bodies (122) that are close to each other, and the telescopic member (1211) is mounted on one of the connecting plates (1212); the telescopic end of the telescopic member (1211) is connected to the other connecting plate (1212); the telescopic member (1211) is telescoped to adjust the two connecting plates (1212) to drive the two sub-rod bodies (122) to move closer to each other or farther away from each other.

8. The switch machine for automatically adjusting the closeness between the point rail and the base rail according to claim 7, characterized in that: The connecting plate (1212) is a strip-shaped plate, and one end of the connecting plate is vertically connected to the end of the corresponding sub-rod body (122). The telescopic member (1211) is installed at the other end of the corresponding connecting plate (1212) and is located on the side of the corresponding connecting plate (1212) away from the other connecting plate (1212). The telescopic end of the telescopic member (1211) passes through the corresponding connecting plate (1212) and is connected to the other connecting plate (1212).

9. The switch machine for automatically adjusting the closeness between the point rail and the base rail according to claim 8, characterized in that: A reinforcing plate (1213) is provided at the connection point between the connecting plate (1212) and the corresponding sub-rod body (122).

10. The switch machine for automatically adjusting the closeness between the point rail and the base rail according to claim 7, characterized in that: The telescopic member (1211) is a telescopic electric cylinder.

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