A switch machine notch monitoring device

Abstract

The present invention discloses a switch gap monitoring device, which relates to the field of switch gap monitoring. It includes a indicating rod and a cylinder. A convex shaft is fixed on the indicating rod, and a mounting plate is fixed at the output end of the cylinder. A monitoring mechanism is installed on the mounting plate, and there are two monitoring mechanisms. An auxiliary positioning mechanism is also connected to the mounting plate, and the auxiliary positioning mechanism is interconnected with a self-locking mechanism. The monitoring mechanism includes a fixing plate, a cross bar, a movable block, a positioning hole, a movable plate, a first spring and a pressure sensor. The fixing plate is fixed on the mounting plate, and the cross bar is fixed on the fixing plate. For this switch gap monitoring device, a real-time monitoring mechanism is adopted. After the indicating rod moves to a preset position along with the switch, the convex shaft is matched with the monitoring mechanism. Through the monitoring mechanism, the displacement change of the indicating rod caused by the vibration of the train can be monitored in real time when the train passes, so as to ensure the running safety.

Description

Technical Field

[0001] The present invention relates to the technical field of switch machine notch monitoring, and particularly to a switch machine notch monitoring device. Background Art

[0002] The notch position of the switch machine is usually located between the indicating rod and the inspection post. The notch is an important component of the indicating part of the switch machine. The main function of the notch is to cooperate with the indicating rod to display the actual positions of the switch point rail and the stock rail, as well as the close contact degree with the basic rail. After the switch is switched in place, the notch will align with the mark on the indicating rod, thereby providing clear switch position information to the operator or the signal system. The accuracy and reliability of the notch directly affect the judgment and decision-making of the signal system and are an important link to ensure railway transportation safety. Therefore, it is particularly important to monitor the notch position of the switch machine.

[0003] The existing notch detection of the switch machine mainly relies on manual measurement and detection to determine whether the notch gap meets the safety standards (taking ZD6-A, D, E, F, G, H, K type switch machines as an example: the notch gap on both sides is 1.5 ± 0.5 mm). This detection method is rather troublesome, requiring a large amount of manpower and material resources. Moreover, when a train passes through the position of the switch machine, the vibration of the train will cause the indicating rod to move, resulting in changes in the notch gap. At present, it is impossible to monitor it in real time. Therefore, in view of the above problems, a switch machine notch monitoring device is designed to better meet the actual use requirements. Summary of the Invention

[0004] The purpose of the present invention is to provide a switch machine notch monitoring device to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A switch machine notch monitoring device includes an indicating rod and a cylinder. A convex shaft is fixed on the indicating rod. The output end of the cylinder is fixed with a mounting plate. A monitoring mechanism is installed on the mounting plate, and there are two monitoring mechanisms. An auxiliary positioning mechanism is also connected to the mounting plate. The auxiliary positioning mechanism is connected to a self-locking mechanism. The monitoring mechanism includes a fixing plate, a cross bar, a movable block, a positioning hole, a movable plate, a first spring, and a pressure sensor. The fixing plate is fixed on the mounting plate. The cross bar is fixed on the fixing plate. The movable block is slidably connected to the cross bar. A positioning hole is formed in the movable block, and the positioning hole is nested with the convex shaft. The movable plate is also slidably connected to the cross bar, and the movable plate contacts the movable block and is symmetrically distributed about the center line of the movable block. One end of the movable plate is fixed to the first spring, and the other end of the first spring is fixed to the pressure sensor. The pressure sensor is fixed on the fixing plate.

[0006] Preferably, the auxiliary positioning mechanism includes a fixed rod, an adjusting plate, an inclined groove, a movable rod, a second spring, a circular plate, an elastic piece and a friction plate. One end of the fixed rod is fixed on the movable block, and the other end of the fixed rod is fixed on the adjusting plate. The fixed rod is slidably connected to the mounting plate. When the movable block moves, the fixed rod can be driven to move synchronously, thereby providing a basic acting force for the movement of the adjusting plate and ensuring the normal operation of the device.

[0007] Preferably, the adjusting plate is evenly provided with inclined grooves, and the inclined grooves are slidably connected to the movable rod and are distributed in a one-to-one correspondence with the movable rod. When the adjusting plate moves, the sliding action between the inclined groove and the movable rod can provide a basic acting force for the movement of the movable rod.

[0008] Preferably, the movable rod is slidably connected to the mounting plate, and the movable rod is vertically distributed with respect to the mounting plate. Four movable rods are provided. When the movable rod is forced to move, the sliding guiding function between the movable rod and the mounting plate can ensure the stability of the movement of the movable rod.

[0009] Preferably, one end of the movable rod is fixedly connected to one end of the second spring, and the other end of the second spring is fixed on the mounting plate. Through the elastic action of the second spring, when the movable rod is not affected by an external force, a basic acting force can be provided for the automatic reset of the movable rod, ensuring the normal operation of the device.

[0010] Preferably, a circular plate is fixed on the movable rod, and an elastic piece is fixed between the circular plate and the friction plate. The elastic pieces are evenly distributed at equal angles with respect to the center of the circular plate, and the elastic piece is of an arc structure. The surface of the friction plate facing the indicating rod is a rough structure. Through the elastic action of the elastic piece, a basic guarantee can be provided for adjusting the distance between the circular plate and the friction plate, so that the pressure generated by the friction plate on the indicating rod can be adjusted, thereby increasing the friction force between the friction plate and the indicating rod, and then realizing the auxiliary positioning function, reducing the risk of large distance deviation of the indicating rod due to the vibration of the train, and ensuring the use safety of the device.

[0011] Preferably, the self-locking mechanism includes a fixed frame, a sliding rod, a connecting rod, a locking rod and a third spring. The fixed frame is fixed on the mounting plate, and the fixed frame is symmetrically distributed about the center line of the fixed rod. A sliding rod is slidably connected to the fixed frame. The sliding guiding between the sliding rod and the fixed frame can ensure the stability of the movement of the sliding rod.

[0012] Preferably, one end of the sliding rod is rotatably connected to the connecting rod, and the other end of the connecting rod is rotatably connected to the fixed rod. The connecting rods are symmetrically distributed on both sides of the center line of the fixed rod. When the fixed rod moves with the movable block, the transmission of the connecting rod can provide a basic driving force for the movement of the sliding rod, thus providing a basic guarantee for the self-locking of the device.

[0013] Preferably, a locking rod is slidably connected to the sliding rod, and the locking rod is engaged with the circular hole on the adjusting plate to achieve a positioning function. When the displacement of the indicating rod due to the vibration of the train is too large and the moving distance of the indicating rod reaches the safety standard, the locking rod cooperates with the circular hole on the adjusting plate to lock the indicating rod at its limit, ensuring the safety of train operation.

[0014] Preferably, one end of the locking rod is fixedly connected to one end of the third spring, and the other end of the third spring is fixed inside the sliding rod. Through the elastic action of the third spring, when the locking rod is in position cooperation with the circular hole on the adjusting plate, it can provide a basic driving force for the movement of the locking rod, thus providing a basic guarantee for the engagement of the locking rod with the circular hole on the adjusting plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. For this switch gap monitoring device, a real-time monitoring mechanism is adopted. After the indicating rod moves to a preset position with the switch machine, the convex shaft cooperates with the monitoring mechanism. Through the monitoring mechanism, the displacement change of the indicating rod caused by the vibration of the train can be real-time monitored when the train passes, thus ensuring the operation safety. Specifically, after the indicating rod is moved to the preset position by the switch machine, at this time, the positioning hole and the convex shaft are nested and matched through the cylinder. When the indicating rod generates displacement due to vibration when the train passes, the movable block and the movable plate are synchronously driven to move. With the cooperation of the first spring and the pressure sensor, the pressure generated on the pressure sensor when the movable block and the movable plate move can be detected. Then, according to X = F / K, the displacement size of the indicating rod caused by the vibration of the train can be obtained. Whether the switch machine needs to be repaired or replaced is determined according to the displacement change of the indicating rod, ensuring the use safety of the switch machine.

[0017] 2. The switch machine notch monitoring device adopts a linkage auxiliary positioning mechanism. When the indicating rod generates displacement changes due to the vibration of the train, the friction can be increased to increase the moving resistance of the indicating rod, thereby preventing the displacement of the indicating rod from being too large and causing the notch gap to exceed the standard, which affects the use safety of the switch machine. Specifically, when the indicating rod generates displacement due to the vibration of the train, the movable block, the fixed rod and the adjusting plate are synchronously driven to move. With the sliding action between the inclined groove and the movable rod, the position adjustment of the friction plate can be realized, so that the friction plate contacts the indicating rod. Then, with the elastic action of the elastic piece, the pressure between the friction plate and the indicating rod can be adjusted, thereby adjusting the friction between the friction plate and the indicating rod. Moreover, the greater the displacement of the indicating rod, the greater the friction force, which can effectively prevent the indicating rod from generating displacement due to the vibration of the train and ensure the use safety of the switch machine;

[0018] 3. The switch machine notch monitoring device adopts a linkage self-locking mechanism, which can realize the ultimate self-locking function of the indicating rod when the indicating rod moves to the extreme position, prevent the indicating rod from moving, and ensure the passing safety of the train. Specifically, when the fixed rod moves, with the transmission of the connecting rod, the fixed frame and the locking rod move. When the indicating rod moves to the extreme position, at this time, the locking rod just matches the round hole on the adjusting plate. Through the elastic action of the third spring, the locking rod can be engaged with the round hole on the adjusting plate to realize self-locking and prevent the indicating rod from moving continuously. Description of the Drawings

[0019] Figure 1 It is a front view three-dimensional structure schematic diagram of the whole device of the present invention;

[0020] Figure 2 It is a top view three-dimensional structure schematic diagram of the whole device of the present invention;

[0021] Figure 3 It is a three-dimensional structure schematic diagram of the monitoring mechanism composition of the present invention;

[0022] Figure 4 It is a three-dimensional structure schematic diagram of the auxiliary positioning machine composition of the present invention;

[0023] Figure 5 It is a three-dimensional structure schematic diagram of the adjusting plate and the self-locking mechanism composition of the present invention;

[0024] Figure 6 It is a three-dimensional structure schematic diagram of the cross-section of the sliding rod of the present invention.

[0025] In the figure: 1. indicating rod; 101. convex shaft; 2. cylinder; 3. mounting plate; 4. monitoring mechanism; 401. fixing plate; 402. cross bar; 403. movable block; 404. positioning hole; 405. movable plate; 406. first spring; 407. pressure sensor; 5. auxiliary positioning mechanism; 501. fixing rod; 502. adjusting plate; 503. inclined groove; 504. movable rod; 505. second spring; 506. circular plate; 507. elastic sheet; 508. friction plate; 6. self-locking mechanism; 601. fixing frame; 602. sliding rod; 603. connecting rod; 604. locking rod; 605. third spring. Specific implementation mode

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1 - 6 The present invention provides a technical solution: a switch gap monitoring device, including an indicating rod 1 and a cylinder 2. A convex shaft 101 is fixed on the indicating rod 1. The output end of the cylinder 2 is fixed with a mounting plate 3. A monitoring mechanism 4 is installed on the mounting plate 3, and there are two monitoring mechanisms 4. An auxiliary positioning mechanism 5 is also connected to the mounting plate 3. The auxiliary positioning mechanism 5 is connected to the self-locking mechanism 6. The monitoring mechanism 4 includes a fixing plate 401, a cross bar 402, a movable block 403, a positioning hole 404, a movable plate 405, a first spring 406 and a pressure sensor 407. The fixing plate 401 is fixed on the mounting plate 3. A cross bar 402 is fixed on the fixing plate 401. A movable block 403 is slidably connected to the cross bar 402. A positioning hole 404 is formed on the movable block 403, and the positioning hole 404 is nested with the convex shaft 101. A movable plate 405 is also slidably connected to the cross bar 402, and the movable plate 405 contacts the movable block 403, and the movable plate 405 is symmetrically distributed about the center line of the movable block 403. One end of the movable plate 405 is fixed to the first spring 406, and the other end of the first spring 406 is fixed to the pressure sensor 407. The pressure sensor 407 is fixed on the fixing plate 401.

[0028] When using this switch gap monitoring device, such as Figures 1 - 6As shown, when the switch machine drives the switching device to switch the gate, it will synchronously drive the indicating rod 1 and the convex shaft 101 to move. When the indicating rod 1 and the convex shaft 101 move to the preset position, the gate switching is completed. At this time, the air cylinder 2 starts to extend, thereby driving the mounting plate 3 and the monitoring mechanism 4 to move until the positioning hole 404 on the movable block 403 is nested with the convex shaft 101. And at this time, the friction plate 508 contacts the indicating rod 1 synchronously. During the use of the device, when a train passes through the gate position, the vibration of the train will cause a certain displacement of the switching device and the indicating rod 1. When the indicating rod 1 moves, it synchronously drives the movable block 403 to move. With the sliding guiding effect between the movable block 403 and the cross bar 402, the stability of the movement of the movable block 403 can be ensured. And the movement of the movable block 403 causes the movable plate 405 to be stressed and move synchronously, so that the first spring 406 is stressed and contracts. With the cooperation of the pressure sensor 407, the magnitude of the pressure received by the first spring 406 can be detected. Then, according to X = F / K, the displacement magnitude generated by the switching device and the indicating rod 1 can be calculated, and further the change magnitude of the notch gap can be determined, so that the real-time monitoring of the switch machine notch can be realized;

[0029] The auxiliary positioning mechanism 5 includes a fixed rod 501, an adjusting plate 502, an inclined surface groove 503, a movable rod 504, a second spring 505, a circular plate 506, an elastic piece 507 and a friction plate 508. One end of the fixed rod 501 is fixed on the movable block 403, and the other end of the fixed rod 501 is fixed on the adjusting plate 502, and the fixed rod 501 is slidably connected with the mounting plate 3; The adjusting plate 502 is evenly provided with inclined surface grooves 503, and the inclined surface grooves 503 are slidably connected with the movable rod 504, and the inclined surface grooves 503 and the movable rod 504 are distributed in a one-to-one correspondence; The movable rod 504 is slidably connected with the mounting plate 3, and the movable rod 504 is vertically distributed with the mounting plate 3, and four movable rods 504 are provided; One end of the movable rod 504 is fixed to the second spring 505, and the other end of the second spring 505 is fixed to the mounting plate 3; A circular plate 506 is fixed on the movable rod 504, and an elastic piece 507 is fixed between the circular plate 506 and the friction plate 508, and the elastic pieces 507 are equally angularly distributed about the center of the circular plate 506. At the same time, the elastic piece 507 is of an arc structure, and the surface of the friction plate 508 facing the indicating rod 1 is a rough structure;

[0030] When the switching device and the indicating rod 1 generate displacement due to the vibration of the train and drive the movable block 403 to move, as Figures 1 - 6As shown, the movement of the movable block 403 drives the fixed rod 501 and the adjusting plate 502 to move synchronously. With the sliding action between the inclined surface groove 503 and the movable rod 504, the movable rod 504 is forced to move. With the sliding guiding action between the movable rod 504 and the mounting plate 3, the stability of the movement of the movable rod 504 can be ensured. When the movable rod 504 moves, it drives the circular plate 506, the elastic sheet 507 and the friction plate 508 to move synchronously. At this time, the circular plate 506 generates pressure on the elastic sheet 507 and the friction plate 508. With the elastic action of the elastic sheet 507, the friction plate 508 generates pressure on the indicating rod 1, thereby increasing the frictional resistance between the friction plate 508 and the indicating rod 1, and then hindering the movement of the indicating rod 1, realizing the auxiliary positioning function of the indicating rod 1, avoiding the excessive movement distance of the indicating rod 1 from affecting the safety of the switch machine. And because the movement distance of the movable rod 504 is affected by the movement distance of the indicating rod 1 of the movable rod 504, that is, the greater the displacement of the indicating rod 1, the greater the movement distance of the movable rod 504, so that the friction plate 508 generates greater friction force on the indicating rod 1, effectively hindering the indicating rod 1 from generating a large displacement;

[0031] The self-locking mechanism 6 includes a fixed frame 601, a sliding rod 602, a connecting rod 603, a locking rod 604 and a third spring 605. The fixed frame 601 is fixed on the mounting plate 3, and the fixed frame 601 is symmetrically distributed about the center line of the fixed rod 501, and the sliding rod 602 is slidably connected to the fixed frame 601; one end of the sliding rod 602 is rotatably connected to the connecting rod 603, and the other end of the connecting rod 603 is rotatably connected to the fixed rod 501, and the connecting rod 603 is symmetrically distributed about the center line of the fixed rod 501; the locking rod 604 is slidably connected to the sliding rod 602, and the locking rod 604 can be engaged with the circular hole on the adjusting plate 502 to realize the positioning function; one end of the locking rod 604 is fixed to one end of the third spring 605, and the other end of the third spring 605 is fixed in the sliding rod 602;

[0032] When the fixed rod 501 moves, such as Figures 1 - 6As shown, with the transmission effect of the connecting rod 603, the sliding rod 602 and the locking rod 604 can be moved. When the movable rod 504 moves to the middle position of the inclined surface of the inclined groove 503, at this time the locking rod 604 just contacts the adjusting plate 502. When the movable rod 504 continues to move towards the plane of the adjusting plate 502, at this time the locking rod 604 is forced to slide into the sliding rod 602, and the third spring 605 is forced to contract. When the movable rod 504 moves to contact the plane of the adjusting plate 502, at this time the friction plate 508 generates the maximum frictional force on the indicating rod 1, and the displacement generated by the indicating rod 1 reaches the limit position (that is, the gap between the two side notches reaches the maximum value of the safety standard), and the locking rod 604 cooperates with the circular hole on the adjusting plate 502. At this time, under the elastic action of the third spring 605, the locking rod 604 is reset and engaged with the circular hole on the adjusting plate 502, so as to realize the self-locking function of the limit position of the indicating rod 1, and avoid the gap of the switch machine exceeding the standard maximum value and affecting the driving safety of the train. This is the working principle of the switch machine gap monitoring device.

[0033] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A switch gap monitoring device, comprising an indicating rod (1) and a cylinder (2), characterized in that: The indicating rod (1) is fixed with a cam shaft (101), the output end of the cylinder (2) is fixed with a mounting plate (3), the mounting plate (3) is mounted with a monitoring mechanism (4), and two monitoring mechanisms (4) are provided, the mounting plate (3) is also connected with an auxiliary positioning mechanism (5), the auxiliary positioning mechanism (5) and the self-locking mechanism (6) are interconnected, the monitoring mechanism (4) comprises a fixed plate (401), a cross bar (402), a movable block (403), a positioning hole (404), a movable plate (405), a first spring (406) and a pressure sensor (407), the fixed plate (401) is fixed on the mounting plate (3), the cross bar (402) is fixed on the fixed plate (401), ), a movable block (403) is slidably connected to the cross bar (402), a positioning hole (404) is provided on the movable block (403), and the positioning hole (404) and the convex shaft (101) are nested and connected, a movable plate (405) is also slidably connected to the cross bar (402), and the movable plate (405) is in contact with the movable block (403), and the movable plate (405) is symmetrically distributed about the center line of the movable block (403), the movable plate (405) and one end of the first spring (406) are fixed to each other, the other end of the first spring (406) is fixed to the pressure sensor (407), and the pressure sensor (407) is fixed to the fixed plate (401), and the auxiliary positioning The positioning mechanism (5) comprises a fixed rod (501), an adjustment plate (502), an inclined groove (503), a movable rod (504), a second spring (505), a circular plate (506), an elastic sheet (507) and a friction plate (508); one end of the fixed rod (501) is fixed to the movable block (403), and the other end of the fixed rod (501) is fixed to the adjustment plate (502); the fixed rod (501) and the mounting plate (3) are in sliding connection; the adjustment plate (502) is evenly provided with inclined grooves (503); the inclined grooves (503) and the movable rod (504) are in sliding connection; and the inclined grooves (503) and the movable rod (504) are distributed in a one-to-one correspondence. The movable rod (504) and the mounting plate (3) are slidably connected, and the movable rod (504) and the mounting plate (3) are vertically distributed. Four movable rods (504) are provided. The movable rod (504) and one end of the second spring (505) are fixed to each other, and the other end of the second spring (505) is fixed to the mounting plate (3). A circular plate (506) is fixed to the movable rod (504), and an elastic sheet (507) is fixed between the circular plate (506) and the friction plate (508). The elastic sheets (507) are distributed at equal angles with respect to the center of the circular plate (506). At the same time, the elastic sheets (507) are of an arc structure, and a side of the friction plate (508) facing the indicating rod (1) is of a rough structure.

2. A switch gap monitoring device according to claim 1, characterized in that: The self-locking mechanism (6) comprises a fixing frame (601), a sliding rod (602), a connecting rod (603), a locking rod (604) and a third spring (605); the fixing frame (601) is fixed on the mounting plate (3), and the fixing frame (601) is symmetrically distributed about the center line of the fixing rod (501), and the sliding rod (602) is slidably connected to the fixing frame (601).

3. A switch gap monitoring device according to claim 2, characterized in that: The sliding rod (602) is rotatably connected to one end of the connecting rod (603), and the other end of the connecting rod (603) is rotatably connected to the fixed rod (501), and the connecting rod (603) is symmetrically distributed about the center line of the fixed rod (501).

4. A switch gap monitoring device according to claim 3, characterized in that: The sliding rod (602) is slidably connected to a locking rod (604), and the locking rod (604) cooperates with a circular hole on the adjustment plate (502) to achieve a positioning effect.

5. A switch gap monitoring device according to claim 4, characterized in that: The locking rod (604) and one end of the third spring (605) are fixed to each other, and the other end of the third spring (605) is fixed inside the sliding rod (602).

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