Point switch gap monitoring device

Abstract

The invention discloses a switch machine gap monitoring device, and relates to the field of switch machine gap monitoring, the switch machine gap monitoring device comprises an indication rod and an air cylinder, the indication rod is fixedly provided with a convex shaft, the output end of the air cylinder is fixedly provided with a mounting plate, the mounting plate is provided with two monitoring mechanisms, and the two monitoring mechanisms are connected with the convex shaft. The mounting plate is further connected with an auxiliary positioning mechanism, the auxiliary positioning mechanism is connected with the self-locking mechanism, the monitoring mechanism comprises a fixed plate, a transverse rod, a movable block, a positioning hole, a movable plate, a first spring and a pressure sensor, the fixed plate is fixed on the mounting plate, and the transverse rod is fixed on the fixed plate. According to the switch machine gap monitoring device, the real-time monitoring mechanism is adopted, after the indication rod moves to the preset position along with the switch machine, the convex shaft is matched with the monitoring mechanism, the displacement change of the indication rod caused by train vibration can be monitored in real time through the monitoring mechanism when a train passes through, and therefore running safety is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of switch gap monitoring, in particular to a switch gap monitoring device. Background Art

[0002] The notch position of the switch machine is usually located between the indicating rod and the inspection column. The notch is an important component of the switch machine indicating part. The main function of the notch is to cooperate with the indicating rod to display the actual position of the switch point rail and the heart rail, as well as the degree of closeness with the base rail. When the switch is in place, the notch will align with the mark on the indicating rod, thereby providing clear switch position information to the operator or signal system. The accuracy and reliability of the notch directly affects the judgment and decision-making of the signal system, and is an important link in ensuring railway transportation safety. Therefore, it is particularly important to monitor the notch position of the switch machine;

[0003] The existing switch gap detection mainly relies on manual measurement and detection to determine whether the gap meets the safety standards (taking ZD6-A, D, E, F, G, H, K type switch as an example: the gap on both sides is 1.5±0.5mm). This detection method is relatively troublesome and requires a lot of manpower and material resources. When the train passes through the switch position, the vibration of the train will cause the indicating rod to move, thereby causing the gap to change. At this stage, it is impossible to monitor it in real time. Therefore, in view of the above problems, a switch gap monitoring device is designed to better meet the actual use needs. Summary of the invention

[0004] The object of the present invention is to provide a switch gap monitoring device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a switch gap monitoring device, comprising an indicating rod and a cylinder, a cam shaft is fixed on the indicating rod, a mounting plate is fixed on the output end of the cylinder, a monitoring mechanism is mounted on the mounting plate, and two monitoring mechanisms are provided, an auxiliary positioning mechanism is also connected to the mounting plate, and the auxiliary positioning mechanism is interconnected with the self-locking mechanism, the monitoring mechanism comprises a fixed plate, a cross bar, a movable block, a positioning hole, a movable plate, a first spring and a pressure sensor, the fixed plate is fixed on the mounting plate, a cross bar is fixed on the fixed plate, a movable block is slidably connected on the cross bar, a positioning hole is provided on the movable block, and the positioning hole and the cam shaft are nested, a movable plate is also slidably connected on the cross bar, and the movable plate contacts the movable block, and the movable plate is symmetrically distributed about the center line of the movable block, the movable plate and one end of the first spring are fixed to each other, the other end of the first spring is fixed on the pressure sensor, and the pressure sensor is fixed on the fixed plate.

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

[0007] Preferably, the adjustment plate is evenly provided with inclined grooves, and the inclined grooves are slidably connected to the movable rod, and the inclined grooves and the movable rod are distributed one-to-one, so that the adjustment plate is suitable for movement, and the sliding action of the inclined grooves and the movable rod can provide a basic force for the movement of the movable rod.

[0008] Preferably, the movable rod and the mounting plate are slidably connected, and the movable rod and the mounting plate are vertically distributed, and four movable rods are provided. When the movable rod is moved under force, the sliding guiding effect between the movable rod and the mounting plate can ensure the stability of the movement of the movable rod.

[0009] Preferably, the movable rod and one end of the second spring are fixed to each other, and the other end of the second spring is fixed to the mounting plate. Through the elastic action of the second spring, when the movable rod is not subjected to external force, a basic force can be provided for the automatic reset of the movable rod to ensure the normal operation of the device.

[0010] Preferably, a circular plate is fixed on the movable rod, and an elastic sheet is fixed between the circular plate and the friction plate, and the elastic sheets are distributed at equal angles about the center of the circular plate. At the same time, the elastic sheet is an arc-shaped structure, and the side of the friction plate facing the indicating rod is a rough structure. Through the elastic action of the elastic sheet, 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 between the friction plate and the indicating rod, and then realizing the auxiliary positioning effect, reducing the risk of a large distance deviation of the indicating rod due to the vibration of the train, and ensuring the safe use 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. The sliding rod is slidably connected to the fixed frame, and the stability of the sliding rod movement can be ensured by the sliding guide between the sliding rod and the fixed frame.

[0012] Preferably, the sliding rod is rotatably connected to one end of the connecting rod, and the other end of the connecting rod is rotatably connected to the fixed rod, and the connecting rod is symmetrically distributed about the center line of the fixed rod. When the fixed rod moves with the movable block, the transmission action of the connecting rod can provide a basic force for the movement of the sliding rod, thereby providing a basic guarantee for realizing the self-locking of the device.

[0013] Preferably, a locking rod is slidably connected to the sliding rod, and the locking rod engages with the circular hole on the adjusting plate to achieve a positioning effect. When the indicating rod is displaced too much due to the vibration of the train, so that the moving distance of the indicating rod is equal to the safety standard, the locking rod cooperates with the circular hole on the adjusting plate to achieve the ultimate locking of the indicating rod, thereby ensuring the safety of the train's travel.

[0014] Preferably, the locking rod and one end of the third spring are fixed to each other, and the other end of the third spring is fixed in the sliding rod. Through the elastic action of the third spring, when the locking rod cooperates with the circular hole position on the adjusting plate, a basic force can be provided for the movement of the locking rod, thereby 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 present invention has the following beneficial effects:

[0016] 1. The switch gap monitoring device adopts a real-time monitoring mechanism. After the indicating rod moves to a preset position with the switch machine, the cam shaft cooperates with the monitoring mechanism. The monitoring mechanism can monitor in real time the displacement change of the indicating rod caused by the vibration of the train when the train passes, thereby ensuring the operation safety. Specifically, after the indicating rod is moved to a preset position by the switch machine, the positioning hole and the cam shaft are nested and matched by the cylinder. When the indicating rod is displaced due to the vibration of the train passing, the movable block and the movable plate are synchronously driven to move. With the action of the first spring and the pressure sensor, the pressure generated by the movable block and the movable plate on the pressure sensor when they move can be detected. Then, according to X=F / K, the displacement of the indicating rod caused by the vibration of the train can be obtained. According to the displacement change of the indicating rod, it is determined whether the switch machine needs to be repaired or replaced, thereby ensuring the safety of the use of the switch machine;

[0017] 2. The switch gap monitoring device adopts a linkage auxiliary positioning mechanism. When the indicating rod is displaced due to the vibration of the train, the friction is increased to increase the moving resistance of the indicating rod, thereby avoiding excessive displacement of the indicating rod and causing the gap to exceed the standard, thereby affecting the safe use of the switch. Specifically, when the indicating rod is displaced due to the vibration of the train, the movable block, the fixed rod and the adjustment plate are synchronously driven to move, and the sliding action between the inclined groove and the movable rod can be used to adjust the position of the friction plate, so that the friction plate contacts the indicating rod, and the elastic action of the elastic sheet can be used to adjust the pressure between the friction plate and the indicating rod, thereby adjusting the friction between the friction plate and the indicating rod. The greater the displacement of the indicating rod, the greater the friction force, which can effectively prevent the indicating rod from being displaced due to the vibration of the train, thereby ensuring the safe use of the switch;

[0018] 3. The switch gap monitoring device adopts a linked self-locking mechanism, which can realize the extreme self-locking effect of the indicating rod when the indicating rod moves to the extreme position, prevent the indicating rod from moving, and ensure the safety of the train passing. Specifically, when the fixed rod moves, the transmission effect of the connecting rod is cooperated to make the fixed frame and the locking rod move. When the indicating rod moves to the extreme position, the locking rod and the circular hole on the adjusting plate are just matched. Through the elastic action of the third spring, the locking rod and the circular hole on the adjusting plate can be engaged to achieve self-locking, preventing the indicating rod from continuing to move. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

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

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

[0025] In the figure: 1, indicating rod; 101, cam; 2, cylinder; 3, mounting plate; 4, monitoring mechanism; 401, fixed plate; 402, cross bar; 403, movable block; 404, positioning hole; 405, movable plate; 406, first spring; 407, pressure sensor; 5, auxiliary positioning mechanism; 501, fixed 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, fixed frame; 602, sliding rod; 603, connecting rod; 604, locking rod; 605, third spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 6 The present invention provides a technical solution: a switch gap monitoring device, comprising an indicating rod 1 and a cylinder 2, wherein a cam 101 is fixed on the indicating rod 1, a mounting plate 3 is fixed on the output end of the cylinder 2, a monitoring mechanism 4 is mounted on the mounting plate 3, and two monitoring mechanisms 4 are provided, 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 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, and the fixed plate 401 is fixed on the mounting plate 3. A cross bar 402 is fixed on the fixed plate 401, and a movable block 403 is slidably connected to the cross bar 402. A positioning hole 404 is opened on the movable block 403, and the positioning hole 404 and the convex shaft 101 are nested. 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. The movable plate 405 and one end of the first spring 406 are fixed to each other, and 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.

[0028] When using the switch gap monitoring device, if Figure 1-Figure 6As shown, when the switch machine drives the switching device to switch the gate, it will synchronously drive the indicating rod 1 and the cam 101 to move. When the indicating rod 1 and the cam 101 move to the preset position, the gate switching is completed. At this time, the 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 cam 101, and at this time, the friction plate 508 is in synchronous contact with the indicating rod 1. During the use of the device, when the train passes 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 When the movable block 403 moves, the movable block 403 is synchronously driven to move. With the sliding guide between the movable block 403 and the cross bar 402, the stability of the movement of the movable block 403 can be ensured. The movement of the movable block 403 causes the movable plate 405 to move synchronously under force, so that the first spring 406 is forced to contract. With the action of the pressure sensor 407, the pressure on the first spring 406 can be detected. Then, according to X=F / K, the displacement of the switching device and the indicating rod 1 can be calculated, and then the change in the gap gap can be determined, so that the real-time monitoring of the switch gap can be realized.

[0029] The auxiliary positioning mechanism 5 includes 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, and the fixed rod 501 is slidably connected to the mounting plate 3; the adjustment plate 502 is evenly provided with inclined grooves 503, and the inclined grooves 503 are slidably connected to the movable rod 504, and the inclined grooves 503 and the movable rod 504 are distributed one-to-one. The movable rod 504 is slidably connected to the mounting plate 3, and the movable rod 504 and the mounting plate 3 are vertically distributed, and 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, and the elastic sheets 507 are distributed at equal angles with respect to the center of the circular plate 506, and the elastic sheet 507 is an arc structure, and the side of the friction plate 508 facing the rod 1 is a rough structure;

[0030] When the switching device and the indicating rod 1 are displaced due to the vibration of the train and the movable block 403 is moved, Figure 1-Figure 6As shown, the movable block 403 moves synchronously to drive the fixed rod 501 and the adjustment plate 502 to move, and the sliding action between the inclined groove 503 and the movable rod 504 makes the movable rod 504 move under force, and the sliding guide action between the movable rod 504 and the mounting plate 3 can ensure the stability of the movement of the movable rod 504, and when the movable rod 504 moves, the circular plate 506, the elastic sheet 507 and the friction plate 508 are synchronously driven to move, at this time, the circular plate 506 generates pressure on the elastic sheet 507 and the friction plate 508, and the elastic action of the elastic sheet 507 is cooperated. , so that the friction plate 508 generates pressure on the indicating rod 1, thereby increasing the friction resistance between the friction plate 508 and the indicating rod 1, and then hindering the indicating rod 1 from moving, realizing the auxiliary positioning function of the indicating rod 1, and avoiding the indicating rod 1 from moving too far and affecting the safety of the switch machine. In addition, since the moving distance of the movable rod 504 is affected by the moving distance of the movable rod 504 indicating rod 1, that is, the greater the displacement of the indicating rod 1, the greater the moving distance of the movable rod 504, the greater the friction force generated by the friction plate 508 on the indicating rod 1, thereby effectively preventing the indicating rod 1 from having a large displacement;

[0031] The self-locking mechanism 6 includes 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 with respect to the center line of the fixing rod 501, and the fixing frame 601 is slidably connected with the sliding rod 602; 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 fixing rod 501, and the connecting rod 603 is symmetrically distributed with respect to the center line of the fixing rod 501; the sliding rod 602 is slidably connected with the locking rod 604, and the locking rod 604 is engaged with the circular hole on the adjusting plate 502 to realize the positioning effect; 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 in the sliding rod 602;

[0032] When the fixed rod 501 moves, Figure 1-Figure 6As shown, with the transmission effect of the connecting rod 603, the slide bar 602 and the locking rod 604 can move. When the movable rod 504 moves to the middle position of the inclined surface of the inclined surface groove 503, the locking rod 604 just contacts the adjustment plate 502. When the movable rod 504 continues to move toward the plane of the adjustment plate 502, the locking rod 604 is forced to slide into the slide bar 602, and the third spring 605 is forced to shrink. When the movable rod 504 moves to contact the plane of the adjustment plate 502, the friction plate 508 is pressed against the surface. The friction force generated by the indicator rod 1 reaches the maximum, and the displacement of the indicator rod 1 reaches the limit position (that is, the gaps on both sides are the maximum value that reaches 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, thereby realizing the self-locking effect of the limit position of the indicator rod 1, avoiding 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 embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that 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 convex shaft (101), the output end of the cylinder (2) is fixed with a mounting plate (3), the mounting plate (3) is installed 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), 02), 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, and 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), the movable plate (405) and one end of the first spring (406) are fixed to each other, and 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).

2. A switch gap monitoring device according to claim 1, characterized in that: The auxiliary 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 on the movable block (403), and the other end of the fixed rod (501) is fixed on the adjustment plate (502); and the fixed rod (501) and the mounting plate (3) are slidably connected.

3. A switch gap monitoring device according to claim 2, characterized in that: The adjustment plate (502) is evenly provided with inclined grooves (503), and the inclined grooves (503) are slidably connected to the movable rods (504), and the inclined grooves (503) and the movable rods (504) are distributed in a one-to-one correspondence.

4. A switch gap monitoring device according to claim 3, characterized in that: 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, and four movable rods (504) are provided.

5. A switch gap monitoring device according to claim 4, characterized in that: 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 on the mounting plate (3).

6. A switch gap monitoring device according to claim 4, characterized in that: A circular plate (506) is fixed on the movable rod (504), and an elastic sheet (507) is fixed between the circular plate (506) and the friction plate (508), and the elastic sheets (507) are distributed at equal angles with respect to the center of the circular plate (506), and the elastic sheets (507) are of an arc structure, and the side of the friction plate (508) facing the rod (1) is of a rough structure.

7. A switch gap monitoring device according to claim 2, 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 with respect to the center line of the fixing rod (501); and the sliding rod (602) is slidably connected to the fixing frame (601).

8. A switch machine gap monitoring device according to claim 7, 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).

9. A switch gap monitoring device according to claim 7, characterized in that: The sliding rod (602) is slidably connected to a locking rod (604), and the locking rod (604) cooperates with the circular hole on the adjustment plate (502) to achieve a positioning effect.

10. A switch gap monitoring device according to claim 9, 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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