Rim lubricating device with curve recognition function and control method

Abstract

The invention discloses a rim lubricating device with a curve recognition function. The rim lubricating device comprises travel switches symmetrically arranged on a rim lubricating oscillating stop; when the locomotive runs to a curve, the travel switch is triggered to generate an action signal, and the cutout cock is used for controlling the on or off of a main air source supply rim lubricating pipeline system; the filter is used for filtering total air conveyed by the cutout cock; the pressure reducing valve is used for adjusting the air pressure of the filtered total air conveyed by the filter to be within the working pressure range of the rim lubricating device; the grease tank is used for storing grease; the spray head is used for spraying the grease in the grease tank; and the controller is used for receiving an action signal generated by the travel switch, controlling the cutout cock to be opened, controlling the filter to filter the total air, and adjusting the total air to be within the working pressure range of the rim lubricating device by the pressure reducing valve, so that the air source is conveyed into the grease tank and the nozzle, and the grease spraying action is realized.

Description

Technical Field

[0001] The invention belongs to the field of fully automated products and relates to a wheel rim lubrication device with a curve recognition function and a control method. Background Art

[0002] The wheel flange lubrication system of rail vehicles can effectively solve the dry friction problem of the wheel-rail system, reduce the wear of the rail and the wheel flange, and help to extend the wheel turning and repair cycle and increase the service life of the wheel. When the vehicle is running, the use of wheel flange lubrication (i.e. adding lubricant to the wheel rail) can effectively reduce wheel flange wear and reduce wheel-rail noise, especially when the vehicle passes through switches, curves and tunnels. At present, wheel flange lubrication mainly adopts two types of wheel flange lubrication devices: dry (solid) lubrication and wet (liquid) lubrication.

[0003] (1) Wet wheel rim lubrication device

[0004] The HB-2 wheel rim lubrication device is centrally controlled by the locomotive microcomputer system (TCMS) or a control host is set up outside the locomotive microcomputer system to control the wheel rim lubrication device. The device realizes fixed-distance grease spraying by collecting the locomotive speed signal. The grease spraying distance is adjustable within the range of 200 to 900m, and the grease spraying time is adjustable within the range of 1.7 to 2.3s. The HB-2 wheel rim lubrication device is an on-board wet wheel rim lubrication device that adopts a dispersed grease supply and fixed-distance grease spraying mode, that is, each nozzle is supplied with grease from a separate grease tank. Every time the locomotive runs to the set interval distance, the forward end nozzle sprays grease once. Generally, it does not have a curve recognition function.

[0005] The FL wheel rim lubrication device has a curve recognition function, in which the curve sensor transmits its output control signal to the control unit, thereby enabling the control unit to accurately control the working cycle of the entire lubrication system. However, the device is relatively precise and requires maintenance. It is an integrated set of equipment with high procurement costs and subsequent maintenance costs.

[0006] (2) Dry wheel rim lubrication device

[0007] The dry wheel flange lubrication system generally consists of a lubrication device and a solid lubricating block. The dry wheel flange lubrication device is fixed on the bogie, and the lubricating block is installed in the lubrication device. It is compressed by a constant force spring, and pressure is evenly applied to the lubricating block to make the lubricating block close to the wheel flange. During the movement of the wheel, the lubricating block first lubricates the wheel flange in contact with the wheel to form a thin film. When the wheel flange contacts the rail, this thin film is transferred to the rail, and the rail lubricates the wheel flange of the next wheel. Since the lubricant is continuously applied to the wheel flange, a uniform and continuous metal film is formed on the inner side of the wheel flange; when the wheel flange slides on the side of the rail, the synthetic resin and polymer oil carry the solid lubricating material to the inner side of the rail to form a dry lubricating film. From the analysis of the lubrication principle, dry lubrication is similar to liquid friction. When the film is reduced, the lubricating block lubricates the wheel flange in contact with the wheel again, and the cycle repeats. The solid lubricating block is composed of molding resin, lubricant, coupling group, metal affinity group, activator and other fillers.

[0008] Technical solutions of the prior art

[0009] (1) The HB-2 wheel rim lubrication device is centrally controlled by the locomotive microcomputer system (TCMS) or a control host is set up outside the locomotive microcomputer system to control the wheel rim lubrication device. The device realizes fixed-distance grease spraying by collecting the locomotive speed signal. The grease spraying distance is adjustable within the range of 200 to 900m, and the grease spraying time is adjustable within the range of 1.7 to 2.3s. The HB-2 wheel rim lubrication device is an on-board wet wheel rim lubrication device. The wet wheel rim lubrication system uses a pneumatic piston pump with a lubricating oil tank to transport a mixture of compressed air and lubricant to the nozzle through a diverter, thereby lubricating the friction pair between the wheel rim and the rail. It adopts a dispersed grease supply and fixed-distance grease spraying mode, that is, each nozzle is supplied with grease from a separate grease tank. Every time the locomotive runs to the set interval distance, the forward end nozzle sprays grease once. Generally, it does not have a curve recognition function.

[0010] The FL wheel rim lubrication device has a curve recognition function, in which the curve sensor transmits its output control signal to the control unit, thereby enabling the control unit to accurately control the working cycle of the entire lubrication system. However, the device is relatively precise and requires maintenance. It is an integrated set of equipment with high procurement costs and subsequent maintenance costs.

[0011] (2) The dry wheel rim lubrication system generally consists of a lubrication device and a solid lubricating block. The dry wheel rim lubrication device is fixed on the bogie, and the lubricating block is installed in the lubrication device and compressed by a constant force spring to evenly apply pressure to the lubricating block so that the lubricating block is tightly attached to the wheel rim.

[0012] 1.2.2 Disadvantages of Existing Technologies

[0013] 1) Spraying grease at a fixed distance without distinguishing curves, and failing to spray grease on demand;

[0014] 2) Devices with curve recognition function require precise curve recognition sensors and a complete integrated system, and have high procurement and maintenance costs. Although they can achieve curve recognition function and spray fat on demand, they are not economical.

[0015] 3) The installation is relatively complicated and requires professional debugging.

[0016] 4) Since the lubrication adopts point-to-point lubrication, the effective lubrication area is small, and the application effect is better on plain lines. The dry wheel rim lubrication device has a poor application effect on small curved sections in mountainous areas.

[0017] 5) Solid lubricants have poor self-repairing properties, are easy to break, and require frequent replacement.

[0018] 6) The lubrication time cannot be controlled and cannot be detected in the driver's cab.

[0019] 7) It does not have the function of curve recognition, which belongs to real-time lubrication and causes waste. Summary of the invention

[0020] In order to solve the above problems, the technical solution adopted by the present invention is: a wheel rim lubrication device with curve recognition function, comprising:

[0021] A travel switch is symmetrically arranged on the wheel rim lubrication swing stop; when the locomotive travels to a curve, the travel switch is triggered to generate an action signal.

[0022] The shutoff valve is used to control the opening or closing of the total air source supplying the wheel flange lubrication pipeline system;

[0023] A filter, used for filtering the total wind transmitted by the cut-off plug;

[0024] A pressure reducing valve, used for adjusting the wind pressure of the total air after filtering transmitted by the filter to within the working pressure range of the wheel rim lubrication device;

[0025] Grease tank: used to store grease;

[0026] Spray head: used for spraying the grease in the grease tank;

[0027] The controller receives the action signal generated by the travel switch, controls the shut-off valve to open, controls the filter to filter the total air, and the pressure reducing valve adjusts the total air to the working pressure range of the wheel rim lubrication device, thereby delivering the air source into the grease tank and the nozzle to realize the grease spraying action.

[0028] Furthermore: it also includes a solenoid valve for on-off control of the total air flow within the working pressure range.

[0029] Further: the travel switch includes a U-shaped shaking head stop;

[0030] A through hole is provided on the top of the U-shaped shaking head stopper;

[0031] A slave point contact is arranged inside the U-shaped shaking head stop;

[0032] An active contact point that is arranged in the U-shaped head direction of the U-shaped shaking stop and moves up and down;

[0033] The active contacts include active contacts I and active contacts II;

[0034] The active contact I and the active contact II are fixedly connected;

[0035] The active contact I and the active contact II are cylindrical;

[0036] The diameter of the active contact II is smaller than the diameter of the active contact I;

[0037] A stopper is provided in the middle of the active contact;

[0038] An active contact signal line is connected to the top of the active contact II;

[0039] The slave point contact adopts a cylinder I, and inside the cylinder, near the U-shaped head direction, there are nested hollow cylinders II, cylinder III and cylinder IV arranged along the inner wall of the cylinder;

[0040] The diameter of the cylinder III is the same as the diameter of the hollow part of the hollow cylinder II;

[0041] The cylinder III and the cylinder IV are integrally connected;

[0042] A driven contact signal line is arranged at the top of the cylinder III and runs through the inside of the cylinder IV;

[0043] The hollow cylinder II cooperates with the active contact II;

[0044] A spring is arranged inside the slave contact and outside the hollow cylinder II.

[0045] Furthermore: the active contact II of the travel switch is made of conductive material, and the rest is made of insulating material.

[0046] Furthermore: the diameter of the cylinder IV is smaller than that of the cylinder III.

[0047] Furthermore: the length of the cylinder IV is greater than the length of the cylinder III.

[0048] Further: when the locomotive travels to a curve, the process of triggering the travel switch to generate an action signal is as follows:

[0049] When the locomotive enters a curve, the active contact contacts the car body stop, thereby pushing the active contact to compress, the active contact signal line at the active contact II, the active contact II contacts the slave contact cylinder III, and is in a conductive state, the active contact signal line signal is conductive with the slave contact signal line 13, and the slave contact signal line transmits the conductive signal to the controller.

[0050] According to one control method of a wheel rim lubrication device with a curve recognition function, it is characterized by comprising the following steps:

[0051] The total air source is supplied into the wheel flange lubrication pipeline system through the cut-off valve, filtered by the filter, reaches the pressure reducing valve, adjusts the air pressure to the working pressure range of the wheel flange lubrication device, and finally passes through the solenoid valve that controls the on-off of the air source;

[0052] When the locomotive runs on a curved line, the locomotive body contacts the bogie oscillating stopper, the travel switch in the oscillating stopper is closed due to the contact, the active contact and the driven contact are turned on, and the conduction signal is transmitted to the controller;

[0053] The controller will control the air source solenoid valve to open, and the air source enters the grease tank through the solenoid valve to realize grease spraying.

[0054] The present invention provides a wheel rim lubrication device with a curve recognition function and a control method, which combines a swaying stopper and a switch for controlling the on and off of wheel rim lubrication, and uses the swaying motion relationship between the bogie and the front of the vehicle to identify the curve that the locomotive passes through, that is, when the locomotive runs on a curved line, the locomotive body contacts the bogie swaying stopper, and the travel switch in the swaying stopper is closed due to the contact, and the active contact signal line and the driven contact signal line are connected, and the signal is transmitted to the controller to open the control air source solenoid valve to realize the grease spraying function. It has the following advantages:

[0055] 1) Able to identify curves, realize on-demand grease spraying, and reduce grease loss;

[0056] 2) Use simple structure to improve economy.

[0057] 3) Simplified installation, no special debugging is required, and it can be put into use. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0059] Figure 1It is the schematic diagram of the wheel rim lubrication device;

[0060] Figure 2 It is a structural diagram of a wheel rim lubrication device with curve recognition function;

[0061] Figure 3 It is the structural diagram of the travel switch;

[0062] Figure 4 Schematic diagram of the installation position of the shaking head stop.

[0063] Figure numerals: 1, grease tank, 2, nozzle, 3, solenoid valve, 4, pressure reducing valve, 5, filter, 6, cut-off Simon, 7, active contact, 8 first return spring, 9, head stopper, 10, insulating bushing, 11, slave contact, 12, cylinder IV, 13, slave contact signal line, 14, active contact signal line, 7-1, active contact I, 7-2, active contact II, 11-1, cylinder III, 11-2, second return spring. DETAILED DESCRIPTION

[0064] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0065] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. 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.

[0066] Figure 2 It is a structural diagram of a wheel rim lubrication device with curve recognition function;

[0067] A wheel rim lubrication device with a curve recognition function, comprising: a travel switch, a cut-off plug 6, a filter 5, a pressure reducing valve 4, a grease tank 1, a nozzle 2 and a controller;

[0068] Figure 3 Schematic diagram of the installation position of the shaking head stopper;

[0069] The travel switch is symmetrically arranged on the wheel rim lubrication shaking stop 9;

[0070] There is a rocking stop on each side of the front end of the bogie;

[0071] When the locomotive reaches a curve, the travel switch is triggered to generate an action signal.

[0072] The shutoff valve 6 is used to control the opening or closing of the total wind source supplying the wheel rim lubrication pipeline system;

[0073] A filter 5, used for filtering the total wind transmitted by the cut-off plug 6;

[0074] A pressure reducing valve 4, used for adjusting the wind pressure of the filtered total wind transmitted by the filter 5 to within the working pressure range of the wheel rim lubrication device;

[0075] Solenoid valve 3 is used to control the total air flow within the working pressure range. When the coil of solenoid valve 3 is energized, the air source can enter the grease tank 1 and the nozzle 2 to complete a grease spraying. The on and off of solenoid valve 33 is controlled by whether the coil of solenoid valve 3 is energized.

[0076] Grease tank 1: used to store grease;

[0077] Spray head 2: used for spraying the grease in the grease tank 1;

[0078] The controller receives the action signal generated by the travel switch, controls the shut-off valve 6 to open, controls the filter 5 to filter the total air, and the pressure reducing valve 4 adjusts the total air to the working pressure range of the wheel rim lubrication device, thereby delivering the air source into the grease tank 1 and the nozzle 2 to realize the grease spraying action.

[0079] Figure 4 This is the structural diagram of the travel switch

[0080] The travel switch includes a U-shaped shaking stopper 9;

[0081] A through hole is provided at the top of the U-shaped shaking stopper 9;

[0082] A slave point contact 11 disposed inside the U-shaped shaking stop 9;

[0083] An active contact 7 disposed in the U-shaped head direction of the U-shaped shaking stop 9 and moving up and down;

[0084] The active contact 7 includes an active contact I and an active contact II;

[0085] The active contact I and the active contact II are fixedly connected;

[0086] The active contact I and the active contact II are cylindrical;

[0087] The diameter of the active contact II is smaller than the diameter of the active contact I;

[0088] A stopper is provided in the middle of the active contact 7; the stopper is provided inside the slave contact 11; the diameter of the stopper is ≤ the diameter of the cylinder 1;

[0089] The top of the active contact II is connected with an active contact 7 signal line; the active contact 7 signal line passes through the nested hollow cylinder II10, cylinder III12 and cylinder IV;

[0090] The slave point contact 11 adopts a cylinder I, and inside the cylinder, near the U-shaped head direction, there are nested hollow cylinders II12, cylinders III11-1 and cylinders IV arranged along the inner wall of the cylinder;

[0091] The diameter of the cylinder III11-1 is the same as the diameter of the hollow part of the hollow cylinder II12;

[0092] The cylinder III11-1 and the cylinder IV are integrally connected;

[0093] A driven contact signal line is arranged at the top of the cylinder III11-1 and runs through the inside of the cylinder IV;

[0094] The hollow cylinder II10 cooperates with the active contact 7II;

[0095] A return spring is arranged inside the slave contact 11 and outside the hollow cylinder II10, and the return spring includes a first return spring 8 and a second return spring 11-2. The first return spring 8 is arranged at the active contact 7 and extends to the hollow cavity part inside the active contact 7.

[0096] The second return spring 11-2 is arranged in the hollow cavity formed by the cylinder III11-1, the cylinder IV and the slave contact 11;

[0097] The driven contact signal line is connected to the controller.

[0098] The active contact 7II of the travel switch is made of conductive material, and the remaining parts are made of insulating material.

[0099] The diameter of the cylinder IV is smaller than that of the cylinder III11 - 1 .

[0100] The length of the cylinder IV is greater than the length of the cylinder III11 - 1 .

[0101] When the locomotive reaches a curve, the process of triggering the travel switch to generate an action signal is as follows:

[0102] When the locomotive enters a curve, the active contact 7 contacts the car body stopper, thereby pushing the active contact 7 to compress, and the active contact signal line at the active contact 7II contacts the cylinder III of the slave contact 11, and is in a conducting state. The active contact signal line signal is connected to the slave contact signal line 13, and the slave contact signal line transmits the conduction signal to the controller, and the controller will determine that the locomotive has entered a curve;

[0103] When the locomotive runs on a curved line, the locomotive body contacts the bogie shaking stop, the travel switch in the shaking stop is closed due to the contact, the active contact signal line and the driven contact signal line are turned on, and the conduction signal is transmitted to the controller to open the control air source solenoid valve to realize the grease injection function.

[0104] Each bogie has two shaking stops 9 at the front end. The switch is installed. No matter which switch is actuated, the controller receives a contact signal from any travel switch. When the speed is higher than 5km / h, the controller energizes the control solenoid valve 3 to complete a grease injection.

[0105] A control method for a wheel rim lubrication device with a curve recognition function comprises the following steps:

[0106] Step 1: Wind source conduction;

[0107] The total air is supplied to the wheel flange lubrication pipeline system through the cut-off valve, and after being filtered by the filter, it reaches the pressure reducing valve, and the air pressure is adjusted to the working pressure range of the wheel flange lubrication device, so that there is air in the ventilation pipeline;

[0108] Step 2: Open the solenoid valve;

[0109] When the locomotive runs on a curved route, the locomotive body contacts the bogie shaking head stop, the travel switch in the shaking head stop is closed due to the contact, the active contact, the driven contact and the signal line are turned on, and the conduction signal is transmitted to the controller. The controller controls the air source solenoid valve to open (normally in the normally closed state), and the air source enters the grease tank through the solenoid valve to realize the grease spraying function.

[0110] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wheel rim lubrication device with a curve recognition function, characterized in that: include: A travel switch is symmetrically arranged on the wheel rim lubrication swing stop; when the locomotive travels to a curve, the travel switch is triggered to generate an action signal. The shutoff valve is used to control the opening or closing of the total air source supplying the wheel flange lubrication pipeline system; A filter, used for filtering the total wind transmitted by the cut-off plug; A pressure reducing valve, used to adjust the wind pressure of the total air after filtering transmitted by the filter to within the working pressure range of the wheel rim lubrication device; Grease tank: used to store grease; Spray head: used for spraying the grease in the grease tank; The controller receives the action signal generated by the travel switch, controls the shut-off valve to open, controls the filter to filter the total air, and the pressure reducing valve adjusts the total air to the working pressure range of the wheel rim lubrication device, thereby delivering the air source into the grease tank and the nozzle to realize the grease spraying action.

2. A wheel rim lubrication device with curve recognition function according to claim 1, characterized in that: It also includes a solenoid valve for on-off control of the total air flow within the working pressure range.

3. The wheel rim lubrication device with curve recognition function according to claim 1, characterized in that: The travel switch includes a U-shaped shaking stop; A through hole is provided on the top of the U-shaped shaking head stopper; A slave point contact is arranged inside the U-shaped shaking head stop; An active contact point that is arranged in the U-shaped head direction of the U-shaped shaking stop and moves up and down; The active contacts include active contacts I and active contacts II; The active contact I and the active contact II are fixedly connected; The active contact I and the active contact II are cylindrical; The diameter of the active contact II is smaller than the diameter of the active contact I; A stopper is provided in the middle of the active contact; An active contact signal line is connected to the top of the active contact II; The slave point contact adopts a cylinder I, and inside the cylinder, near the U-shaped head direction, there are nested hollow cylinders II, cylinder III and cylinder IV arranged along the inner wall of the cylinder; The diameter of the cylinder III is the same as the diameter of the hollow part of the hollow cylinder II; The cylinder III and the cylinder IV are integrally connected; A driven contact signal line is arranged at the top of the cylinder III and runs through the inside of the cylinder IV; The hollow cylinder II cooperates with the active contact II; A spring is arranged inside the slave contact and outside the hollow cylinder II.

4. The wheel rim lubrication device with curve recognition function according to claim 1, characterized in that: The active contact II of the travel switch is made of conductive material, and the remaining parts are made of insulating material.

5. The wheel rim lubrication device with curve recognition function according to claim 1, characterized in that: The diameter of the cylinder IV is smaller than that of the cylinder III.

6. The wheel rim lubrication device with curve recognition function according to claim 1, characterized in that: The length of the cylinder IV is greater than the length of the cylinder III.

7. The wheel rim lubrication device with curve recognition function according to claim 1, characterized in that: When the locomotive reaches a curve, the process of triggering the travel switch to generate an action signal is as follows: When the locomotive enters a curve, the active contact contacts the car body stop, thereby pushing the active contact to compress, the active contact signal line at the active contact II, the active contact II contacts the slave contact cylinder III, and is in a conductive state, the active contact signal line signal is conductive with the slave contact signal line 13, and the slave contact signal line transmits the conductive signal to the controller.

8. A control method for a wheel rim lubrication device with a curve recognition function according to any one of claims 1 to 7, characterized in that: The following steps are involved: The total air source is supplied into the wheel flange lubrication pipeline system through the cut-off valve, filtered by the filter, reaches the pressure reducing valve, adjusts the air pressure to the working pressure range of the wheel flange lubrication device, and finally passes through the solenoid valve that controls the on-off of the air source; When the locomotive runs on a curved line, the locomotive body contacts the bogie oscillating stopper, the travel switch in the oscillating stopper is closed due to the contact, the active contact and the driven contact are turned on, and the conduction signal is transmitted to the controller; The controller will control the air source solenoid valve to open, and the air source enters the grease tank through the solenoid valve to realize grease spraying.

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