A retarder fault monitoring device and its installation method

Abstract

A retarder fault monitoring device and its installation method. The device includes an elastic swing arm module, an auxiliary adjustment fixing frame and a sensor; the elastic swing arm module is installed on the auxiliary adjustment fixing frame; the elastic swing arm module is mainly assembled into an elastic unit module by an installation base frame assembly, a turnover mechanism assembly, a blocking mechanism, a swing arm rod return spring, a resistance return spring, a nylon wheel through a swing arm rod fixing pin shaft, a turnover mechanism fixing pin shaft, a spring adjustment combination screw rod, and a nylon wheel fixing pin shaft; by installing a sensor near the swing trajectory of the blocking mechanism to detect the swing amplitude of the blocking mechanism, the fault of the retarder is diagnosed. The device has the advantages of delicate structure, convenient installation, low cost, high versatility, good stability, high intelligence, etc.

Description

Technical Field

[0001] The present invention relates to the field of detecting the performance of retarders, and particularly to a retarder fault monitoring device and an installation method thereof. Background Art

[0002] Currently, retarders have become one of the indispensable important speed regulating and transportation safety guarantee devices in railway transportation production. With the continuous increase in the demand for railway transportation and the continuous improvement of vehicle load capacity, the compatibility of safety and efficiency is the prominent issue for us currently. Retarders need to work continuously all day long, with a high usage frequency and large load intensity. The internal parts are prone to aging and wear, resulting in failures, which affect the safety and efficiency of shunting operations.

[0003] Among common retarder failures, failure modes such as the so-called "stuck retarder, lying retarder" and bolt failures account for a relatively large proportion. The consequences caused by these failures can, at the least, affect the quality and efficiency of shunting operations, and at the most, may cause train operation accidents. Currently, the maintenance of retarders mainly still adopts primitive methods such as outdoor inspections, manual looking, listening, and stepping. This is not only inefficient but also affects the shunting operation efficiency and the safety of inspection personnel. Therefore, the automation of retarder fault monitoring is an inevitable development trend at present. Summary of the Invention

[0004] The present invention provides a retarder fault monitoring device and an installation method thereof. Its main function is to conduct real-time diagnostic monitoring on fault states such as "stuck retarder, lying retarder" and bolt fracture of retarders. Without affecting train operation and marshalling, this device can be installed on the side of the retarder on the track to achieve the monitoring work. It has the advantages of delicate structure, convenient installation, low cost, high versatility, good stability, and high intelligence.

[0005] The technical solution adopted by the present invention is: a retarder fault monitoring device, including an elastic swing arm module, an auxiliary adjustment fixing frame, and a sensor; the elastic swing arm module is installed on the auxiliary adjustment fixing frame; the elastic swing arm module is mainly assembled into an elastic unit module by an installation base frame assembly, a flipping mechanism assembly, a blocking mechanism, a swing arm rod return spring, a resistance return pulling spring, a nylon wheel through a swing arm rod fixing pin shaft, a flipping mechanism fixing pin shaft, a pulling spring adjustment combination screw, and a nylon wheel fixing pin shaft; the flipping mechanism assembly is connected to the installation base frame assembly through the flipping mechanism fixing pin shaft, the blocking mechanism is connected to the flipping mechanism assembly through the swing arm rod fixing pin shaft, the swing arm rod return spring is hooked between the blocking mechanism and the flipping mechanism assembly, one end of the resistance return pulling spring is installed on the installation base frame assembly through the pulling spring adjustment combination screw, and the other end is hooked to the flipping mechanism assembly, and the nylon wheel is connected to the blocking mechanism through the nylon wheel fixing pin shaft; by installing a sensor near the swinging trajectory of the blocking mechanism to detect the swinging amplitude of the blocking mechanism, the fault of the retarder can be diagnosed.

[0006] Its further technical solution is that: the installation chassis assembly is a component mainly composed of a frame plate, a hinge plate, a limit baffle, side sealing plates and adjusting studs fixed and combined;

[0007] The frame plate is a grooved bending part. The grooved bending part includes a horizontal plane. One end of the horizontal plane is bent upward to form a vertical plane, and the other end of the horizontal plane is bent obliquely upward to form an inclined plane. Through holes for installing sensors are arranged on the vertical plane, and through holes for installing the tension spring adjustment combination screw are symmetrically arranged on the inclined plane;

[0008] The side sealing plates are rectangular steel sheets and are symmetrically arranged on both sides of the horizontal plane of the grooved bending part;

[0009] The hinge plate is a semi-circular square plate. Through holes for installing the flipping mechanism assembly are arranged on the semi-circular square plate. The hinge plates are symmetrically fixed on the horizontal plane of the frame plate, and an installation space for the flipping mechanism assembly is reserved between the two hinge plates;

[0010] The limit baffle is a square steel sheet. It is placed on one side close to the inclined plane of the frame plate and welded and fixed against the side of the hinge plate;

[0011] The adjusting studs are fixed on the bottom plane of the horizontal plane of the frame plate, and the center line of the studs is perpendicular to the bottom plane of the straight panel of the frame plate.

[0012] Its further technical solution is that: the flipping mechanism assembly includes flipping leaf plates, tension spring hanging pins and width-limiting gaskets; the flipping leaf plates are provided with upper through holes, middle through holes and lower through holes; the tension spring hanging pins pass through the middle through holes of two flipping leaf plates and are fixedly connected with the flipping leaf plates. An assembly space for the swing arm rod assembly is reserved in the upper part between the two flipping leaf plates. A width-limiting gasket is clamped between the lower parts of the two flipping leaf plates and is fixedly connected with the width-limiting gasket; the width-limiting gasket is a D-shaped special-shaped steel plate part, a through hole is arranged in the middle of the plate, and a small through hole for connecting and hooking the return spring of the swing arm rod is arranged on the special-shaped protruding part.

[0013] Its further technical solution is that: the blocking mechanism is a swing arm rod assembly. The swing arm rod assembly is an L-shaped steel plate. The front end of the bent hook part of the L-shaped steel plate is set as a straight edge. A through hole Ⅱ for installing a nylon wheel is arranged at the front end of the outer extending rod part of the L-shaped steel plate. A through hole Ⅰ is opened at the rear end of the outer extending rod part of the L-shaped steel plate. A through hole Ⅲ is opened on the bent hook part of the L-shaped steel plate.

[0014] The further technical solution is: the assembly state of the elastic swing arm module is: the swing arm rod assembly is hung on the flip mechanism assembly through the swing arm rod fixing pin shaft, and is rotatably connected with the swing arm rod fixing pin shaft; the swing arm rod assembly and the nylon wheel are assembled into a rolling assembly by using nylon wheel fixing pin shafts on both sides of the through hole II of the extended rod part of the swing arm rod assembly;

[0015] One end of the swing arm return spring is hooked into the through hole III on the hook part of the swing arm assembly, and the other end thereof is hooked into the small through hole opened in the special-shaped protruding part of the width limiting gasket; the flip mechanism assembly is installed between the two hinged plates through the flip mechanism fixing pin shaft passing through the hinge plate, the flip leaf plate and the corresponding through holes on the width limiting gasket, and the flip mechanism assembly is rotatably connected with the flip mechanism fixing pin shaft; the tension spring adjustment combination screw is a lifting eye bolt, which is installed and fixed on the through hole symmetrically arranged on the inclined plane of the frame plate; one end of the anti-rebound tension spring is hooked on the outer protruding shaft rod part of the tension spring hanging pin, and the other end thereof is hooked into the corresponding tension spring adjustment combination screw lifting eye ring.

[0016] Its further technical solution is: the decelerator top fault monitoring device also includes a module box side sealing plate and a module box upper cover plate; the module box side sealing plate is an L-shaped sheet metal bending part, and both the plate plane and the bent surface are provided with installation through holes; the module box upper cover plate is also an L-shaped sheet metal bending part, and the left and right sides of the plate plane are respectively provided with through holes that are adapted to the through hole sizes of the bent surface of the module box side sealing plate; in the assembled state, the two sides of the mounting base assembly are sealed with the module box side sealing plate hole screws, and the upper part is sealed with the module box upper cover plate hole, so as to be combined into a semi-closed elastic swing arm module.

[0017] Its further technical solution is: the auxiliary adjustment fixing frame is installed on the rail through the rail end fastener; the auxiliary adjustment fixing frame is a sheet metal bending part, and the front end of the plate plane is provided with a large through hole for connecting and installing the elastic swing arm module, and the rear is provided with a long hole to cooperate with the rail end fastener to connect, and the relative distance between the elastic swing arm module and the side of the rail can be adjusted by adjusting the position of the long hole; the rail end fastener is a square steel part, and the upper part is arranged as an inclined table surface perpendicular to the movement axis of the deceleration top piston, and a threaded hole is arranged in the middle of the inclined table surface to be connected with the long hole of the auxiliary adjustment fixing frame by bolts, and an inner groove is arranged at the waist, and the size of the inner groove is consistent with the lower convex edge of the rail cross section, and a double through hole is centrally arranged at the lower part of the rail end fastener for passing the fastener combination bolts.

[0018] A further technical solution is: there are two sensors, which are proximity sensors, and the proximity sensors are installed on the vertical surface of the frame plate.

[0019] Another related technical solution is: an installation method of a retarder fault monitoring device, which is used to install the above-mentioned retarder fault monitoring device; the adjusting stud at the bottom surface of the assembled elastic swing arm module is inserted into the large through hole arranged at the front end of the auxiliary adjustment fixing frame, and after adjusting the height according to the height requirement, it is tightened and fixed with a locking nut; the assembled elastic swing arm module and the auxiliary adjustment fixing frame are fixed together in the threaded hole of the inclined table surface of the rail end fastener through the long hole on the table surface of the auxiliary adjustment fixing frame with standard bolts, so that the elastic swing arm module, the auxiliary adjustment fixing frame and the rail end fastener are combined into one body; during the overall installation, within a certain distance on the right side of the retarder, with the center line of the rail cross-section as the center, this integrated body is buckled into the inner convex edge on the lower side of the rail cross-section with the inner groove arranged at the waist of the rail end fastener, and the left side of the retarder is buckled into the rail convex edge with another single rail end fastener, and the through-hole is equipped with a fastener combination bolt to tightly pull the two rail end fasteners left and right, so that the device is fixed on the rail; in the initial state, when waiting for a train to pass, the nylon wheel assembly at the through hole II of the outer extension rod part of the swing arm rod assembly is arranged near the lower edge of the sliding oil cylinder cap of the retarder, and there is no contact with each other.

[0020] Its further technical solution is: during the process of the swing arm rod assembly being pressed down and swung and reset, driving the overall turnover of the turnover mechanism assembly, there are swinging trajectories of components. Proximity switches or related distance sensors are installed at some position points of these trajectories; when the components pass by or approach, the sensor receives the signal and undergoes an on-off electrical signal change, and then the signal is transmitted back to the upper computer of the rail-side processing system through a wire, and the rail-side processing signal is transmitted to the terminal device through a wired or wireless data transmission method, so as to realize the online monitoring of the working state of the retarder without leaving home.

[0021] Due to adopting the above technical solution, a retarder fault monitoring device of the present invention has the following beneficial effects:

[0022] 1. The retarder fault monitoring device of the present invention retains the original internal and external structures and installation forms of the retarder unchanged. Only this device needs to be installed on the side of the retarder according to the designed dimensions, without affecting the later maintenance and replacement of the retarder.

[0023] 2. The retarder fault monitoring device of the present invention is simple to install, convenient to use and maintain, monitors one by one all day long, the fault information is clearly displayed, and the operation is simplified.

[0024] 3. By applying the retarder fault monitoring device of the present invention and connecting it to the upper computer to realize real-time monitoring of the working conditions of the retarders, maintenance personnel can receive the status information of each retarder at the terminal, and can monitor the working state of the retarders online without leaving home, reducing the occurrence of accidents, and greatly improving the efficiency and quality of train formation operations.

[0025] The technical features of a retarder fault monitoring device according to the present invention will be further described below in conjunction with the accompanying drawings and embodiments. Description of the Drawings

[0026] Figure 1-1 is the first general assembly schematic diagram (front view) of a retarder fault monitoring device in an embodiment;

[0027] Figure 1-2 is the second general assembly schematic diagram (top view) of a retarder fault monitoring device in an embodiment;

[0028] Figure 1-3 is the third general assembly schematic diagram (side view) of a retarder fault monitoring device in an embodiment;

[0029] Figure 2-1 is the first working state schematic diagram of this device when the sliding cylinder of the passing retarder is compressed;

[0030] Figure 2-2 is the second working state schematic diagram of this device when the sliding cylinder of the passing retarder is compressed;

[0031] Figure 2-3 is the third working state schematic diagram of this device when the sliding cylinder of the passing retarder is compressed;

[0032] Figure 3-1 is the first schematic diagram of the critical contact point when a fault-free retarder completes the rebound process of the passing retarder;

[0033] Figure 3-2 is the second schematic diagram of the critical contact point when a fault-free retarder completes the rebound process of the passing retarder;

[0034] Figure 3-3 is the third schematic diagram of the critical contact point when a fault-free retarder completes the rebound process of the passing retarder;

[0035] Figure 4-1 is the first schematic diagram of the limiting effect of the blocked rebound of the retarder after a faulty retarder completes passing a vehicle;

[0036] Figure 4-2 is the second schematic diagram of the limiting effect of the blocked rebound of the retarder after a faulty retarder completes passing a vehicle;

[0037] Figure 4-3 is the third schematic diagram of the limiting effect of the blocked rebound of the retarder after a faulty retarder completes passing a vehicle.

[0038] Figure 5 is the schematic diagram of the module box assembly;

[0039] Figure 6-1 is the first schematic diagram (front view) of the elastic swing arm module 1 assembly;

[0040] Figure 6-2It is the second assembly schematic diagram (side view) of the elastic swing arm module 1;

[0041] Figure 6-3 It is the third assembly schematic diagram (top view) of the elastic swing arm module 1;

[0042] Figure 6-4 It is the fourth assembly schematic diagram (three-dimensional view) of the elastic swing arm module 1;

[0043] Figure 7 It is the disassembly schematic diagram of the elastic swing arm module 1;

[0044] Figure 8 It is the structural schematic diagram of the installation chassis assembly 11;

[0045] Figure 9-1 It is the disassembly schematic diagram of the flipping mechanism assembly 12;

[0046] Figure 9-2 It is the first structural schematic diagram of the flipping mechanism assembly 12;

[0047] Figure 9-3 It is the second structural schematic diagram of the flipping mechanism assembly 12;

[0048] Figure 10-1 It is the first structural schematic diagram of the swing arm rod assembly 13;

[0049] Figure 10-2 It is the second structural schematic diagram of the swing arm rod assembly 13;

[0050] Figure 11-1 It is the first structural schematic diagram (front view) of the auxiliary adjustment fixing bracket 4;

[0051] Figure 11-2 It is the second structural schematic diagram (side view) of the auxiliary adjustment fixing bracket 4;

[0052] Figure 11-3 It is the third structural schematic diagram (top view) of the auxiliary adjustment fixing bracket 4;

[0053] Figure 11-4 It is the fourth structural schematic diagram (three-dimensional view) of the auxiliary adjustment fixing bracket 4;

[0054] Figure 12-1 It is the first structural schematic diagram (front view) of the rail end fastener 5;

[0055] Figure 12-2 It is the second structural schematic diagram (side view) of the rail end fastener 5;

[0056] Figure 12-3 It is the third structural schematic diagram (top view) of the rail end fastener 5;

[0057] Figure 12-4 It is the fourth structural schematic diagram (three-dimensional view) of the rail end fastener 5.

[0058] Description of reference numerals:

[0059] 1 - Elastic swing arm module; 2 - Side sealing plate of module box; 3 - Upper cover plate of module box; 4 - Auxiliary adjustment fixing bracket; 5 - Rail end fastener; 6 - Fastener combination bolt; 7 - Locking nut; 8 - Sensor; 9 - Rail.

[0060] 11 - Installation base frame assembly; 11a - Frame plate; 11b - Adjusting stud; 11c - Hinged plate; 11d - Limit baffle; 11e - Side sealing plate;

[0061] 12 - Flip mechanism assembly; 12a - Flip vane; 12b - Spring hanging pin; 12c - Width limiting gasket;

[0062] 13 - Swing arm rod assembly; 13a - Through hole Ⅰ; 13b - Through hole Ⅱ; 13c - Through hole Ⅲ; 13d - Straight edge;

[0063] 14 - Swing arm rod return spring; 15 - Swing arm rod fixing pin shaft; 16 - Flip mechanism fixing pin shaft; 17 - Spring adjustment combination screw; 18 - Anti - rebound spring; 19 - Nylon wheel fixing pin shaft; 20 - Nylon wheel. Detailed implementation manners

[0064] A retarder fault monitoring device, which mainly includes an elastic swing arm module 1, an auxiliary adjustment fixing frame 4 and a sensor 8; the elastic swing arm module 1 is installed on the auxiliary adjustment fixing frame 4; the elastic swing arm module 1 mainly consists of a mounting base frame assembly 11, a turning mechanism assembly 12, a blocking mechanism, a swing arm rod return spring 14, a resistance return spring 18, a nylon wheel 20, etc., which are assembled into an elastic unit module through a swing arm rod fixing pin 15, a turning mechanism fixing pin 16, a spring adjusting combination screw 17, and a nylon wheel fixing pin 19. The turning mechanism assembly 12 is connected to the mounting base frame assembly 11 through a turning mechanism fixing pin 16, the blocking mechanism is connected to the turning mechanism assembly 12 through a swing arm rod fixing pin 15, the swing arm rod return spring 14 is hooked between the blocking mechanism and the turning mechanism assembly 12, one end of the resistance return spring 18 is installed on the mounting base frame assembly 11 through a spring adjusting combination screw 17, and the other end is hooked to the turning mechanism assembly 12, and the nylon wheel is connected to the blocking mechanism through a nylon wheel fixing pin 19. According to the characteristics of the sliding oil cylinder of the retarder contracting under the pressure of the wheel and then rebounding and resetting in the working state, a blocking mechanism is added near the sliding oil cylinder cap of the retarder. Except for the "dead top" fault (the fault that the sliding oil cylinder cannot be compressed due to excessive gas-liquid pressure), the sliding oil cylinders of other tops can overcome the elastic force of the blocking mechanism and press down and contract. When resetting, a normal retarder will have enough resilience to break through the resistance of the blocking mechanism and return upward. However, if it is a "lying top" (insufficient gas-liquid pressure) or a top with insufficient gas-liquid volume, it will be suppressed by the blocking mechanism in a fixed position and cannot be reset normally. By installing a sensor 8 near the swing trajectory of the blocking mechanism to detect the swing amplitude of the blocking mechanism, the fault of the retarder can be diagnosed accordingly.

[0065] As Figures 6-1 to 6-4 and Figure 7 shown, the elastic swing arm module 1 includes a mounting base frame assembly 11, a turning mechanism assembly 12, a swing arm rod assembly 13, a swing arm rod return spring 14, a swing arm rod fixing pin 15, a turning mechanism fixing pin 16, a spring adjusting combination screw 17, a resistance return spring 18, a nylon wheel fixing pin 19 and a nylon wheel 20.

[0066] As Figure 8 shown, the mounting base frame assembly 11 is a component mainly composed of a frame plate 11a, a hinge plate 11c, a limit baffle 11d, a side sealing plate 11e and an adjusting stud 11b fixed and combined;

[0067] The frame plate 11a is a grooved sheet metal bending part. The grooved bending part includes a horizontal plane (i.e., the bottom of the groove is a flat panel), one end of the horizontal plane is bent upward to form a vertical plane (i.e., one side of the groove is a right-angled plane), and the other end of the horizontal plane is bent obliquely upward to form an inclined plane (i.e., the other side of the groove is an inclined plane). Through holes for installing the tension spring adjustment combination screw 17 are symmetrically arranged on the inclined plane.

[0068] The side sealing plate 11e is a rectangular steel plate, symmetrically arranged on both sides of the horizontal plane of the grooved bending part;

[0069] The hinge plate 11c is a semi-circular square plate. Through holes for installing the flipping mechanism assembly 12 are arranged on the semi-circular square plate. The hinge plate 11c is symmetrically fixed on the horizontal plane of the frame plate 11a; an installation space for the flipping mechanism assembly 12 is reserved between the two hinge plates 11c;

[0070] The limit baffle 11d is a square steel plate, placed on one side close to the inclined plane of the frame plate 11a and welded and fixed tightly against the side of the hinge plate 11c;

[0071] The adjusting stud 11b is fixed on the bottom plane of the horizontal plane of the frame plate 11a, and the center line of the stud is perpendicular to the bottom plane of the flat panel of the frame plate 11a.

[0072] The processing method of the installation chassis assembly 11: The installation chassis assembly 11 is welded into an integral component by the frame plate 11a, the adjusting stud 11b, the hinge plate 11c, the limit baffle 11d, and the side sealing plate 11e. Through holes are drilled and tapped on the right-angled plane of the frame plate 11a, and these through holes can be used to install the sensor 8; through holes are arranged on both symmetric sides of the inclined plane of the frame plate 11a, and these through holes are used to install the tension spring adjustment combination screw 17; the adjusting stud 11b is a full-thread columnar structure, welded and fixed on the bottom plane of the frame plate 11a according to appropriate dimensions, and the center line of the stud is perpendicular to the bottom plane of the frame plate 11a; the hinge plate 11c is cut into a semi-circular square plate by profiling a medium-thick steel plate, and through holes are arranged at one end of the plate, and these through holes are used to install the flipping mechanism assembly 12; the hinge plate 11c is symmetrically welded with respect to the left and right center lines of the frame plate 11a, and an installation space for the flipping mechanism assembly 12 is reserved in the middle. One side of the double hinge plates 11c is blocked by the limit baffle 11d. Since the height of the limit baffle 11d is higher than the rotation hole position of the double hinge plates 11c, the flipping of the flipping mechanism assembly 12 to this side can be restricted; the limit baffle 11d is placed on one side close to the inclined plane of the frame plate 11a and welded and fixed tightly against the side of the hinge plate 11c; double threaded holes are arranged on the side sealing plate 11e, and these double threaded holes can be connected to the side sealing plate 2 of the module box; one side sealing plate 11e is welded on each side of the groove of the frame plate 11a to ensure that the left and right end faces are flat.

[0073] AsFigures 9-1 to 9-3 As shown in the figure, the flipping mechanism assembly 12 includes a flipping vane 12a, a spring hanging pin 12b, and a width limiting gasket 12c; the flipping vane 12a is provided with an upper through hole, a middle through hole, and a lower through hole; the lower through hole rotates around the through hole on the hinge plate 11c of the mounting chassis assembly 11; the spring hanging pin 12b passes through the middle through holes of two flipping vanes 12a and is fixedly connected to the flipping vanes 12a. A space for assembling the swing arm rod assembly 13 is reserved at the upper part between the two flipping vanes 12a. A width limiting gasket 12c is clamped and fixedly connected to the lower part between the two flipping vanes 12a; the width limiting gasket 12c is a D-shaped special-shaped steel plate part, with a through hole provided in the middle of the plate, and a small through hole for hooking the swing arm rod return spring 14 is provided in the special-shaped protruding part.

[0074] The processing method of the flipping mechanism assembly 12: The flipping mechanism assembly 12 is welded into an H-shaped combination by a flipping vane 12a, a spring hanging pin 12b, and a width limiting gasket 12c. The flipping vane 12a is a rectangular steel plate part formed by profiling cutting, with round holes provided at both ends and in the middle of the long side direction, and the two ends are cut into semi-circular arcs to ensure that there is no interference with other parts during flipping; the spring hanging pin 12b is a pin shaft steel part; the width limiting gasket 12c is a D-shaped special-shaped steel plate part formed by profiling cutting, with a through hole provided in the middle of the plate, and a small through hole for hooking the swing arm rod return spring 14 is provided in the special-shaped protruding part. In the welding state, one flipping vane 12a on each side is clamped and welded to the side of the width limiting gasket 12c, and the lower through hole of the flipping vane 12a and the central through hole of the width limiting gasket 12c are concentric; after welding, a space is left in the middle of the two flipping vanes 12a at the upper part of the flipping mechanism assembly 12 as the space for assembling the swing arm rod assembly 13; the small through hole provided in the special-shaped protruding part of the clamped width limiting gasket 12c needs to protrude backward; the spring hanging pin 12b passes through the middle through holes of the two flipping vanes 12a and is evenly divided left and right and then welded and fixed. One end of the anti-rebound spring 18 is hooked to the outer protruding shaft part of the spring hanging pin 12b on both sides of the welded flipping mechanism assembly 12, and the other end of the anti-rebound spring 18 is respectively hooked into the hanging ring of the spring adjusting combination screw 17.

[0075] As Figure 10-1 、 Figure 10-2As shown in the figure, the blocking mechanism adopts the swing arm rod assembly 13. The swing arm rod assembly 13 is the component in this device that directly contacts the sliding oil cylinder cap of the retarder, and is designed as an L-shaped steel plate according to the eccentric swing rod principle. In this embodiment, the swing arm rod assembly 13 is an L-shaped steel plate formed by profiling cutting. The front end of the lower part of the hook of the L-shaped steel plate is set as a straight edge 13d; a through hole II 13b is provided at the front end of the outer extension rod part of the L-shaped steel plate, and this through hole II 13b is used to install a nylon wheel; a through hole I 13a is opened at the rear end of the outer extension rod part of the L-shaped steel plate, and this through hole I 13a is connected through a swing arm rod fixing pin shaft 15 with the through holes on the two turning vanes 12a at the upper part of the turning mechanism assembly 12; a through hole III 13c is provided at the rear end of the lower part of the hook of the L-shaped steel plate, and this through hole III 13c is used to connect and hook the swing arm rod return spring 14. The upper through hole I 13a of the swing arm rod assembly 13 swings around the pin hole (i.e., the upper through hole) at the upper end of the turning mechanism assembly 12. In the assembled state of the swing arm rod assembly 13, the straight edge 13d presses against the tension spring hanging pin 12b on the turning mechanism assembly 12 to prevent the swing arm rod assembly 13 from independently turning backward. When the nylon wheel on the outer extension rod part of the swing arm rod assembly 13 receives a sufficient backward turning force, the swing arm rod assembly 13 can only drive the turning mechanism assembly 12 to rotate along the axis of the turning mechanism fixing pin shaft 16.

[0076] In this embodiment, the swing arm rod return spring 14 and the anti-rebound tension spring 18 are both standard spring parts and are selected according to the design requirements; the swing arm rod fixing pin shaft 15, the turning mechanism fixing pin shaft 16, and the nylon wheel fixing pin shaft 19 are all pin shaft steel parts; the tension spring adjusting combined screw 17 is a standard eyebolt; the nylon wheel 20 is a nylon roller and lubricates and rolls on the steel part surface.

[0077] The assembled state of the elastic swing arm module 1: The swing arm rod assembly 13 is hung on the turning mechanism assembly 12 through the swing arm rod fixing pin shaft 15 and is rotationally connected with the swing arm rod fixing pin shaft 15; on both sides of the through hole II 13b of the outer extension rod part of the swing arm rod assembly 13, the swing arm rod assembly 13 and the nylon wheel 20 are assembled into a rolling component by the nylon wheel fixing pin shaft 19;

[0078] One end of the swing arm rod return spring 14 is hooked into the through hole III 13c on the hook part of the swing arm rod assembly 13, and the other end is hooked into the small through hole opened in the special-shaped protruding part of the width-limiting gasket 12c;

[0079] The flipping mechanism assembly 12 is installed between two hinge plates 11c through a flipping mechanism fixing pin 16 passing through corresponding through holes on the hinge plate 11c, the flipping vane 12a, and the width-limiting gasket 12c. The flipping mechanism assembly 12 is rotatably connected to the flipping mechanism fixing pin 16. The tension spring adjusting combined screw 17 is a lifting eye bolt and is installed and fixed on the through holes symmetrically arranged on the inclined flat surface of the frame plate 11a. One end of the anti-rebound tension spring 18 is hooked on the protruding shaft part of the tension spring hanging pin 12b, and the other end is hooked into the corresponding lifting eye of the tension spring adjusting combined screw 17. By adjusting the telescopic length of the tension spring adjusting combined screw 17, the elastic force of the anti-rebound tension spring 18 can be adjusted, which is convenient for later adjustment and maintenance.

[0080] The assembly method of the elastic swing arm module 1: Install the lower part of the flipping mechanism assembly 12 into the gap between the two hinge plates 11c of the installation chassis assembly 11, align the holes and install and lock the flipping mechanism fixing pin 16. Install the swing arm rod assembly 13 into the gap between the two flipping vanes 12a at the upper part of the flipping mechanism assembly 12, align the holes and install and lock the swing arm rod fixing pin 15. After the swing arm rod assembly 13 is installed, the end close to the limit baffle 11d cannot rotate forward due to the baffle limit and does not do work. Under the action of the anti-rebound tension spring 18, the swing arm rod assembly 13 will closely adhere to the limit baffle 11d and remain upright. Install the swing arm rod assembly 13 and the nylon wheels 20 through the nylon wheel fixing pin 19 on both sides of the through hole II 13b on the outer extending rod part of the swing arm rod assembly 13. The two nylon wheels can freely rotate around the axis of the nylon wheel fixing pin 19. Then, pre-install two tension spring adjusting combined screws 17 into the through holes symmetrically arranged on both sides of the inclined flat surface of the frame plate 11a respectively. Then, hook one end of the anti-rebound tension spring 18 with a double-headed hook into the lifting eye of the tension spring adjusting combined screw 17, and the other end is respectively hooked to the tension spring hanging pin 12b of the flipping mechanism assembly 12. Rotate the nut of the tension spring adjusting combined screw 17 to adjust the telescopic length of the bolt, tighten the anti-rebound tension spring 18 respectively, and further adjust the rotation amount of the nut to adjust the tension of the anti-rebound tension spring 18. Immediately afterwards, hook one end of the swing arm rod return spring 14 with a double-headed hook into the through hole III 13c of the swing arm rod assembly 13, and the other end is hooked into the small through hole arranged on the special-shaped protruding part of the width-limiting gasket 12c of the flipping mechanism assembly 12. The swing arm rod return spring 14 maintains the tension to keep the swing arm rod assembly 13 with a backward deflection force centered on the through hole I 13a. The straight edge 13d of the swing arm rod assembly 13 is blocked and limited by the tension spring hanging pin 12b on the flipping mechanism assembly 12 at a fixed position. Therefore, the swing arm rod assembly 13 can only rotate in a single direction around the through hole I 13a against the tension of the swing arm rod return spring 14.

[0081] In order to better protect the components in the elastic swing arm module 1 from being damaged easily, a module box side seal plate 2 and a module box upper cover plate 3 can be installed on the elastic swing arm module 1. The module box side seal plate 2 is an L-shaped sheet metal bending part, and mounting through holes are provided on both the plate plane and the bending surface; the module box upper cover plate 3 is also an L-shaped sheet metal bending part, and through holes are provided on the left and right sides of the plate plane respectively, and the sizes of the through holes are adapted to the through holes on the bending surface of the module box side seal plate 2. At the end of assembling the elastic swing arm module 1, the two sides of the mounting chassis assembly 11 are fixed with screws through holes aligned with the module box side seal plate 2, and the upper part is then covered with the module box upper cover plate 3 with holes aligned, forming a semi-closed elastic swing arm module 1.

[0082] The auxiliary adjustment fixing frame 4 is installed on the rail 9 through a rail end fastener 5.

[0083] As Figures 11-1 to 11-4 shown, the auxiliary adjustment fixing frame 4 is a sheet metal bending part. A large through hole for connecting and installing the elastic swing arm module 1 is provided at the front end of the plate plane, and a long hole is provided at the rear for mating connection with the rail end fastener 5. By adjusting the position of the long hole, the relative distance between the elastic swing arm module 1 and the side of the rail 9 can be adjusted.

[0084] As Figures 12-1 to 12-4 shown, the rail end fastener 5 is a square steel part. The upper part is provided with an inclined table surface perpendicular to the movement axis of the retarder piston. A threaded hole is provided in the middle of the inclined table surface for bolt connection with the long hole of the auxiliary adjustment fixing frame 4. An inner groove is provided at the waist, and the size of the inner groove fits the lower convex edge of the cross section of the rail 9. Double through holes are provided in the middle of the lower part of the rail end fastener 5 for installing the fastener combination bolt 6. By adjusting the installation position of the long hole on the table surface of the auxiliary adjustment fixing frame 4 relative to the threaded hole on the inclined table surface of the rail end fastener 5, the distance between the device and the side of the rail 9 can be adjusted. Therefore, this device can be applied to retarders of different models and different height dimensions. In the installed state of the rail end fastener 5, the inner grooves of the two rail end fasteners 5 are symmetrically buckled into the inner and outer lower convex edges of the cross section of the rail 9, and the through holes at the lower parts of the two inner grooves are coaxial. The fastener combination bolt 6 is installed through the through holes and tightened left and right, fixing the whole device on the rail 9.

[0085] The fastener combination bolt 6 and the lock nut 7 are both standard fasteners.

[0086] There are two sensors 8, which are proximity sensors, and the proximity sensors are installed on the vertical surface of the frame plate 11a.

[0087] Installation method of a fault monitoring device for a retarder according to the present invention: First, assemble the elastic swing arm module 1 (refer to the above-mentioned assembly method of the elastic swing arm module 1). Insert the adjusting stud 11b on the bottom surface of the assembled elastic swing arm module 1 into the large through hole provided at the front end of the auxiliary adjustment fixing bracket 4. After adjusting the height as required, tighten and fix it with the locking nut 7. Use standard bolts to fix the assembled elastic swing arm module 1 and the auxiliary adjustment fixing bracket 4 together into the threaded hole on the inclined surface of the rail end fastener 5 through the long hole on the table surface of the auxiliary adjustment fixing bracket 4, so that the elastic swing arm module 1, the auxiliary adjustment fixing bracket 4, and the rail end fastener 5 are combined into one body. During the overall installation, within a certain distance to the right of the retarder, with the center line of the cross-section of the rail 9 as the center, buckle this integrated body into the inner lower convex edge of the cross-section of the rail 9 with the inner groove provided at the waist of the rail end fastener 5. On the left side of the retarder, use another single rail end fastener 5 to buckle into the lower convex edge of the rail 9, and pass through the through hole with the fastener combination bolt 6 to tighten the two rail end fasteners 5 left and right, so as to fix this device on the rail 9.

[0088] As Figures 1-1 to 1-3 shown, in the case of waiting for a train to pass, this device is in the initial state. The nylon wheel 20 assembly at the through hole II 13b of the outer extension rod part of the swing arm rod assembly 13 is arranged near the lower edge of the sliding oil cylinder cap of the retarder, and there is no contact with each other.

[0089] As Figures 2-1 to 2-3 and Figures 3-1 to 3-3 shown is the process of the sliding oil cylinder of the retarder being crushed by the passing train wheel to do work and the working state of this device. When the sliding oil cylinder compresses downward, the lower edge of the cylinder cap scrapes against the nylon wheel 20 assembly, and the nylon wheel 20 rolls upward along the lower contour of the sliding oil cylinder cap, and the entire swing arm rod assembly 13 follows and swings. As the sliding oil cylinder continues to slide down, when the contact surface between the sliding oil cylinder cap and the nylon wheel 20 exceeds the contact critical point, the swing arm rod assembly 13 rebounds and resets under the pulling force of the swing arm rod return spring 14, and the nylon wheel 20 assembly changes its position to be located on the upper edge of the sliding oil cylinder cap. As the vehicle continues to move forward, after the sliding oil cylinder of the retarder is pressed to the lowest point, it starts to rebound. At a certain position point, the upper edge surface of the sliding oil cylinder cap touches the wheel surface of the nylon wheel 20 assembly and then pushes the swing arm rod assembly 13 to perform a swing rod flip, thereby driving the entire flipping mechanism assembly 12 to flip backward along the axis of the flipping mechanism fixing pin 16 against the pulling force of the anti-rebound tension spring 18. By adjusting the telescopic length of the adjusting spring adjusting combination screw 17, the elastic pulling force of the anti-rebound tension spring 18 can be adjusted and the force-bearing state can be maintained. When the retarder is normal and free of faults, the sliding oil cylinder can break through the pulling force of the anti-rebound tension spring 18 to complete the reset. However, when the retarder has a "stuck top" or insufficient gas-liquid fault, the return spring force of the sliding oil cylinder is insufficient, and the sliding oil cylinder cap will be pressed at a fixed position and cannot be fully reset, as Figures 4-1 to 4-3 shown.

[0090] During the process of the swing arm rod assembly 13 being pressed down and swung and driving the overall flipping of the flipping mechanism assembly 12 during the reset process, there are swinging trajectories of components. Proximity switches or related distance sensors are installed at certain position points of these trajectories. When the components pass by or approach, the sensors receive signals and undergo electrical signal changes of on or off, and then the signals are transmitted back to the upper computer (equipment cabinet / box) of the trackside processing system through wires, and then the trackside processing signals are transmitted to the terminal device (room) through wired or wireless data transmission methods, thereby realizing the online monitoring of the working state of the retarder without leaving the house.

[0091] The working principle of the elastic swing arm module 1: The pulling and elastic force of the swing arm rod return spring 14 keeps the straight edge 13d of the swing arm rod assembly 13 pressed against the spring hanging pin 12b of the flipping mechanism assembly 12. The nut of the knob spring adjusting combined screw 17 adjusts the telescopic length of the bolt to increase the pulling force of the anti-rebound spring 18, so as to keep a forward flipping force for the flipping mechanism assembly 12. In the non-working state, the flipping mechanism assembly 12 is restricted from flipping by the limit baffle 11d due to the eccentric flipping pulling force and remains in an upright state. Only when the normal retarder has sufficient resilience in the working state, the sliding oil cylinder cap of the retarder pushes the swing arm rod assembly 13, thereby driving the overall flipping of the flipping mechanism assembly 12 along the axis of the flipping mechanism fixed pin 16 backward until the sliding oil cylinder cap completely breaks away from the suppression of the swing arm rod assembly 13 and the two are separated, and the sliding oil cylinder resets. And the flipping mechanism assembly 12 is pulled back by the pulling force of the anti-rebound spring 18 and is pressed against the limit baffle 11d waiting for the next work.

[0092] During assembly, the nylon wheel 20 assembly is arranged near the lower edge of the sliding oil cylinder cap of the retarder. When a wheel passes by, the sliding oil cylinder of the retarder contracts under the pressure of the wheel. The nylon wheel 20 assembly rolls along the contour of the lower edge of the sliding oil cylinder cap of the retarder, and the swing arm rod assembly 13 swings around the center of the through hole Ⅰ 13a at the upper end of the folding hook part. When it swings through a certain angle, the nylon wheel 20 assembly rolls and slides to the critical contact point of the contour of the sliding oil cylinder cap of the retarder, and the two break contact. The sliding oil cylinder continues to be pressed down and contracted by the wheel, while the swing arm rod assembly 13 rebounds and resets under the pulling force of the swing arm rod return spring 14. At this time, the nylon wheel 20 assembly is placed on the upper edge of the sliding oil cylinder cap of the retarder. When the sliding oil cylinder of the retarder resets, the nylon wheel 20 assembly contacts and rolls with the upper contour of the sliding oil cylinder cap.

[0093] The anti-rebound tension spring 18 provides the damping force for restricting the reset of the sliding cylinder of the retarder in the blocking mechanism of the device. One end of it is hooked on the protruding shaft part of the spring hanging pin 12b on the tilting mechanism assembly 12, and the other end is respectively hooked into the hanging ring of the spring adjusting combined screw 17 on the chassis assembly 11. By adjusting the telescopic length of the adjusting bolt, the tension of the anti-rebound tension spring 18 can be adjusted. Springs are installed on both sides to ensure the balanced force on the tilting mechanism assembly 12. When the sliding cylinder of the retarder rebounds and resets after the wheel passes, the nylon wheel 20 assembly contacts and rolls on the upper contour of the sliding cylinder cap, and the resilience of the sliding cylinder of the retarder acts on the nylon wheel 20, thereby driving the entire swing arm rod assembly 13 to tilt backward. In the assembled state, the straight edge 13d of the swing arm rod assembly 13 presses against the spring hanging pin 12b on the tilting mechanism assembly 12. Therefore, when the swing arm rod assembly 13 tilts backward, it can only drive the tilting mechanism assembly 12 to rotate around the axis of the fixed pin 16 of the tilting mechanism. A normal and fault-free retarder can break through the tension of the anti-rebound tension spring 18 to complete the reset. When there is a "stuck retarder" or insufficient gas-liquid in the retarder, the resilience of the sliding cylinder is insufficient, and the sliding cylinder cap will be pressed in a fixed position and cannot be fully reset. When the bolt of the retarder breaks, the cylinder body tilts or collapses, or when there is a "stuck retarder" fault, there is no mutual contact and work done with this device.

[0094] The parts not involved in the present invention are the same as the prior art or can be implemented by the prior art. The above content is a further detailed description of the present invention in combination with specific preferred embodiments. It cannot be determined that the specific implementation of the present invention is only limited to the records of the above embodiments. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions or substitutions can be made, and all should be regarded as belonging to the patent protection scope determined by the claims submitted for the present invention.

Claims

1. A retarder fault monitoring device, characterized in that: It includes an elastic swing arm module, an auxiliary adjustment fixing bracket and a sensor; the elastic swing arm module is installed on the auxiliary adjustment fixing bracket; the elastic swing arm module is assembled into an elastic unit module by an installation base frame assembly, a turnover mechanism assembly, a blocking mechanism, a swing arm rod return spring, a reverse rebound tension spring, and nylon wheels through a swing arm rod fixing pin shaft, a turnover mechanism fixing pin shaft, a tension spring adjustment combination screw rod, and a nylon wheel fixing pin shaft; the turnover mechanism assembly is connected to the installation base frame assembly through the turnover mechanism fixing pin shaft, the blocking mechanism is connected to the turnover mechanism assembly through the swing arm rod fixing pin shaft, the swing arm rod return spring is hooked between the blocking mechanism and the turnover mechanism assembly, one end of the reverse rebound tension spring is installed on the installation base frame assembly through the tension spring adjustment combination screw rod, and the other end is hooked on the turnover mechanism assembly, and the nylon wheel is connected to the blocking mechanism through the nylon wheel fixing pin shaft; a sensor is installed near the swing trajectory of the blocking mechanism to detect the swing amplitude of the blocking mechanism, so as to diagnose the failure of the retarder.

2. The fault monitoring device for a retarder according to claim 1, characterized in that: The installation base frame assembly includes a frame plate, a hinge plate, a limit baffle, a side seal plate and an adjustment stud; The frame plate is a channel-shaped bent part, and the channel-shaped bent part includes a horizontal plane, one end of the horizontal plane is bent upward to form a vertical plane, and the other end of the horizontal plane is bent obliquely upward to form an inclined plane; through holes for installing sensors are arranged on the vertical plane, and through holes for installing the tension spring adjustment combination screw rod are symmetrically arranged on the inclined plane; The side seal plates are rectangular sheet steel plates and are symmetrically arranged on both sides of the horizontal plane of the channel-shaped bent part; The hinge plate is a semi-circular square plate, and through holes for installing the turnover mechanism assembly are arranged on the semi-circular square plate. The hinge plates are symmetrically fixed on the horizontal plane of the frame plate, and an installation space for the turnover mechanism assembly is reserved between the two hinge plates; The limit baffle is a square sheet steel plate, which is placed on one side close to the inclined plane of the frame plate and welded and fixed against the side of the hinge plate; The adjustment stud is fixed on the bottom plane of the horizontal plane of the frame plate, and the center line of the stud is perpendicular to the bottom plane of the straight panel of the frame plate.

3. The fault monitoring device for a retarder according to claim 2, characterized in that: The turnover mechanism assembly includes a turnover vane, a tension spring hanging pin and a width limit gasket; the turnover vane is provided with an upper through hole, a middle through hole and a lower through hole; the tension spring hanging pin passes through the middle through holes of two turnover vanes and is fixedly connected with the turnover vanes. An assembly space for the swing arm rod assembly is reserved in the upper part between the two turnover vanes. A width limit gasket is clamped and fixedly connected between the lower parts of the two turnover vanes; the width limit gasket is a D-shaped special-shaped steel plate part, a through hole is arranged in the middle of the plate, and a small through hole for connecting and hooking the swing arm rod return spring is arranged on the special-shaped protruding part.

4. The decelerating bump fault monitoring device according to claim 3, characterized in that: The blocking mechanism is a swing arm rod assembly. The swing arm rod assembly is an L-shaped steel plate. The front end of the bent hook part of the L-shaped steel plate is set as a straight edge. A through hole Ⅱ for installing a nylon wheel is arranged at the front end of the outer extension rod part of the L-shaped steel plate. A through hole Ⅰ is opened at the rear end of the outer extension rod part of the L-shaped steel plate, and a through hole Ⅲ is opened on the bent hook part of the L-shaped steel plate.

5. The decelerating bump fault monitoring device according to claim 4, wherein: The assembly state of the elastic swing arm module: the swing arm rod assembly is hung on the flip mechanism assembly through the swing arm rod fixing pin shaft, and is rotatably connected with the swing arm rod fixing pin shaft; the swing arm rod assembly and the nylon wheel are assembled into a rolling assembly by using nylon wheel fixing pin shafts on both sides of the through hole II of the extended rod part of the swing arm rod assembly; One end of the swing arm return spring is hooked into the through hole III on the hook part of the swing arm assembly, and the other end thereof is hooked into the small through hole opened in the special-shaped protruding part of the width limiting gasket; the flip mechanism assembly is installed between the two hinged plates through the flip mechanism fixing pin shaft passing through the hinge plate, the flip leaf plate and the corresponding through holes on the width limiting gasket, and the flip mechanism assembly is rotatably connected with the flip mechanism fixing pin shaft; the tension spring adjustment combination screw is a lifting eye bolt, which is installed and fixed on the through hole symmetrically arranged on the inclined plane of the frame plate; one end of the anti-rebound tension spring is hooked on the outer protruding shaft rod part of the tension spring hanging pin, and the other end thereof is hooked into the corresponding tension spring adjustment combination screw lifting eye ring.

6. The decelerating bump fault monitoring device according to claim 5, wherein: The decelerator top fault monitoring device also includes a module box side sealing plate and a module box upper cover plate; the module box side sealing plate is an L-shaped sheet metal bending part, and both the plate plane and the bent surface are provided with installation through holes; the module box upper cover plate is also an L-shaped sheet metal bending part, and the left and right sides of the plate plane are respectively provided with through holes that are adapted to the through hole sizes of the bent surface of the module box side sealing plate; in the assembled state, the two sides of the mounting base assembly are sealed with the module box side sealing plate hole screws, and the upper part is then sealed with the module box upper cover plate to form a semi-enclosed elastic swing arm module.

7. The fault monitoring device for a retarder according to claim 6, characterized in that: The auxiliary adjustment fixing frame is installed on the rail through the rail end fastener; the auxiliary adjustment fixing frame is a sheet metal bending part, and the front end of the plate plane is provided with a large through hole for connecting and installing the elastic swing arm module, and the rear is provided with a long hole for matching and connecting with the rail end fastener, and the relative distance between the elastic swing arm module and the side of the rail can be adjusted by adjusting the position of the long hole; the rail end fastener is a square steel part, and the upper part is provided with an inclined table surface perpendicular to the movement axis of the deceleration top piston, and a threaded hole is provided in the middle of the inclined table surface, which is connected with the long hole of the auxiliary adjustment fixing frame by bolts, and an inner groove is provided at the waist, and the size of the inner groove coincides with the lower convex edge of the rail cross section, and a double through hole is centrally provided at the lower part of the rail end fastener for passing the fastener combination bolts.

8. The decelerating bump fault monitoring device according to claim 7, wherein: There are two sensors, which are proximity sensors and are installed on the vertical surface of the frame plate.

9. An installation method of a retarder fault monitoring device, characterized in that: The installation method is used to install a retarder fault monitoring device as described in claim 7. The adjusting studs on the bottom surface of the assembled elastic swing arm module are inserted into the large through holes provided at the front end of the auxiliary adjustment fixing frame. After adjusting the height according to the requirements, tighten and fix with a locking nut. Use standard bolts to fix the assembled elastic swing arm module and the auxiliary adjustment fixing frame together through the long holes on the table surface of the auxiliary adjustment fixing frame into the threaded holes on the inclined table surface of the rail end fastener, so that the elastic swing arm module, the auxiliary adjustment fixing frame, and the rail end fastener are combined into one body. During the overall installation, within a certain distance to the right of the retarder, with the center line of the rail cross-section as the center, this integrated body is buckled into the inner convex edge on the lower side of the rail cross-section with the inner groove provided at the waist of the rail end fastener. On the left side of the retarder, another single rail end fastener is buckled into the convex edge of the rail, and the through holes are installed with fastener combination bolts to tightly pull the two rail end fasteners left and right, thereby fixing this device on the rail. In the initial state, when waiting for a train to pass, the nylon wheel assembly at the through hole II of the outer extension rod part of the swing arm rod assembly is arranged near the lower edge of the sliding oil cylinder cap of the retarder, and there is no contact with each other.

10. The installation method of a retarder fault monitoring device according to claim 9, characterized in that: During the process of the swing arm rod assembly being pressed down and swung and reset, driving the overall turning of the turning mechanism assembly, there are swinging trajectories of components. Proximity switches or related distance sensors are installed at some position points of these trajectories. When the component passes by or approaches, the sensor receives the signal and undergoes an on or off electrical signal change, and then transmits the signal back to the upper computer of the trackside processing system through a wire, and then transmits the trackside processing signal to the terminal device through a wired or wireless data transmission method, thereby realizing the online monitoring of the working state of the retarder without leaving home.

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