Skid device and maglev train

Abstract

The skid device comprises a skid, an oil conveying pipe, an oil pump and a controller, an oil conveying hole is formed in the skid, the oil conveying pipe is connected between the oil conveying hole and an oil tank, the oil pump is arranged on the oil conveying pipe, and the controller is connected with the oil pump. The oil pump pumps oil into the oil conveying hole from the oil tank, the oil conveying hole automatically sprays oil to the rail, friction force between the skid and the rail is reduced, and therefore the abrasion loss of the skid is reduced, and the service life of the skid is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of maglev trains, in particular to a skid device and a maglev train. Background Art

[0002] As a new type of urban rail transit system, maglev trains have developed rapidly in recent years. Maglev trains have the advantages of high speed, low noise, no wear, strong climbing ability, good curve passing performance, etc., and have a good development prospect. In order to ensure the safety and reliability of maglev trains, a skid device is usually equipped. The main function of the skid device is to serve as the last-stage braking device and support the vehicle body in case of emergency. However, when the maglev fails to levitate, during the process of being towed to the maintenance point by a rescue vehicle, due to the strong friction between the skid and the rail surface, not only will a large forward resistance be generated, but also the skid wear plate and the rail surface will be severely worn. In order to ensure the rapid development of rescue work, extend the service life of the skid device, and protect the smoothness of the rail surface, it is necessary to improve the skid device.

[0003] However, the existing skid device supports the maglev train in a rolling manner by adding rescue wheels. However, when the maglev train is towed for a long distance due to a fault, there is still serious wear due to the large forward resistance. Therefore, how to improve the service life of the skid device is a technical problem that needs to be solved by those skilled in the art. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a skid device and a maglev train. The controller starts the oil pump according to the received oil injection instruction, so that the oil injection hole of the skid automatically injects oil, solving the technical problem that the existing skid device has a short service life due to serious wear.

[0005] To achieve the above purpose, the utility model provides a skid device, including:

[0006] A skid, with an oil injection hole provided inside;

[0007] An oil pipeline, connecting the oil injection hole and the fuel tank;

[0008] An oil pump, arranged on the oil pipeline, and used to pump oil from the fuel tank into the oil injection hole;

[0009] A controller, connected to the oil pump; the controller is used to start the oil pump according to the received oil injection instruction.

[0010] Preferably, it further includes:

[0011] A flow rate detection component, which is used to detect the actual flow rate of the oil delivery hole; the flow rate detection component is connected to a controller, and the controller is used to determine whether the actual flow rate is consistent with the preset flow rate according to the signal fed back by the flow rate detection component. If so, it controls the oil pump to continue rotating at the current speed; if not, it adjusts the current speed of the oil pump.

[0012] A pump speed detection component, which is used to detect the current speed of the oil pump; the pump speed detection component is connected to the controller; when the pump speed detection component detects that the current speed is inconsistent with the set speed, the controller is used to adjust the current speed of the oil pump according to the signal fed back by the pump speed detection component.

[0013] Preferably, it further includes:

[0014] An injection knob, which is connected to the controller. When the injection knob is rotated away from the zero position mark, the controller generates an injection command according to the signal fed back by the injection knob.

[0015] A solenoid valve, which is arranged on the oil pipeline and is used to control the on / off of the oil pipeline; the solenoid valve is connected to the controller; when the controller receives the injection command, it controls the solenoid valve to open.

[0016] Preferably, it further includes:

[0017] An injection timer, which is used to record the injection time of the oil delivery hole; the injection timer is connected to the controller; when the pump speed detection component detects that the current speed of the oil pump is greater than zero, the controller is used to start the injection timer according to the signal fed back by the pump speed detection component; when the injection time recorded by the injection timer reaches the set injection time, the controller is used to control the oil pump to stop rotating and control the solenoid valve to close according to the signal fed back by the injection timer.

[0018] Preferably, it further includes:

[0019] A stop timer, which is used to record the stop injection time of the oil delivery hole; the stop timer is connected to the controller; when the pump speed detection component detects that the current speed of the oil pump is equal to zero, the controller is used to start the stop timer according to the signal fed back by the pump speed detection component; when the stop injection time recorded by the stop timer reaches the set stop time, the controller is used to start the oil pump and control the solenoid valve to open according to the signal fed back by the stop timer.

[0020] Preferably, it further includes:

[0021] An angle detection component, which is used to detect the current angle of rotation of the injection knob from the zero position mark; the angle detection component is connected to the controller; when the angle detection component detects the current angle, the controller is used to adjust the current speed of the oil pump according to the signal fed back by the angle detection component until the current speed matches the current angle.

[0022] Preferably, it further includes:

[0023] An alarm for giving an alarm;

[0024] A pressure detection component for detecting the oil transportation pressure of an oil pipeline; the pressure detection component is connected to a controller; when the pressure detection component detects that the oil transportation pressure of the oil pipeline exceeds the set pressure, the controller is used to start the alarm according to the signal fed back by the pressure detection component and control the oil pump to stop rotating.

[0025] Preferably, the skids include several groups, and each group of skids is installed on one carriage; the oil pumps include several ones, and each group of skids is configured with an oil pump; further included are:

[0026] A direction indication button connected to the controller for feeding back the traveling direction of the vehicle body; when the vehicle body travels in the forward direction, the direction indication button is in the first position, and the controller is used to adjust the rotation speeds of all the oil pumps according to the signal fed back by the direction indication button, and in the forward direction, the rotation speeds of all the oil pumps gradually decrease.

[0027] Preferably, further included is:

[0028] A traction detection component for detecting the current traction of the vehicle body; the traction detection component is connected to the controller; when the traction detection component detects the current traction, the controller is used to adjust the current rotation speed of the oil pump according to the signal fed back by the traction detection component until the current rotation speed matches the current traction.

[0029] The present utility model further provides a maglev train, which includes the above-mentioned skid device and further includes a cleaning device arranged at the bottom of the vehicle tail for cleaning the track.

[0030] Compared with the background technology, the present utility model improves the skid device, adds an oil delivery hole in the skid, the oil delivery hole is connected to an oil tank through an oil pipeline, the oil pipeline is provided with an oil pump, and the oil pump is connected to a controller; when the controller receives an oil injection instruction, the solenoid valve starts the oil pump, the oil pump pumps the oil liquid from the oil tank into the oil delivery hole, and the oil delivery hole automatically sprays oil on the track, reducing the friction between the skid and the track, thereby reducing the wear amount of the skid and extending the service life of the skid. Description of the Drawings

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0032] Figure 1 It is the structural diagram of the skid device provided by the embodiment of the present utility model;

[0033] Figure 2 This is a structural diagram of the maglev train provided by the embodiment of the present invention.

[0034] The reference signs are as follows:

[0035] Skid 1, oil injection hole 11, oil pipeline 2, controller 3 and cleaning device 4.

[0036] Attached Figure 2 The arrow in the figure indicates that the vehicle body travels in the forward direction. Specific implementation manners

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] In order to enable those skilled in the art in this technical field to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0039] The embodiment of the present invention discloses a skid device, as shown in the attached Figure 1 figure, which includes a skid 1, an oil pipeline 2, an oil pump and a controller 3. The skid 1 is installed at the bottom of the suspension frame and faces the track. An oil injection hole 11 is provided in the skid 1, and the oil injection hole 11 faces the track and is used to spray lubricating oil or lubricant, etc. on the track. As a preferred embodiment, the oil injection hole 11 of each skid 1 includes a longitudinal oil hole and several branch oil holes. The longitudinal oil hole extends along the length direction of the skid 1, and all the branch oil holes are evenly distributed along the length direction of the skid 1 and extend along the thickness direction of the skid 1 until they are aligned with the track. All the branch oil holes are communicated with the longitudinal oil hole, and the longitudinal oil hole can store a certain amount of oil liquid to ensure that the oil liquid evenly flows into each branch oil hole and avoid uneven oil spraying of the skid 1.

[0040] The oil pipeline 2 is connected between the oil injection hole 11 and the fuel tank and is used to transport the oil liquid. The oil pump is provided on the oil pipeline 2 and is used to pump the oil liquid from the fuel tank into the oil injection hole 11. The controller 3 is connected to the oil pump. When the controller 3 receives an oil spraying instruction, the solenoid valve starts the oil pump, and the oil pump pumps the oil liquid from the fuel tank into the oil injection hole 11. The oil injection hole 11 automatically sprays oil on the track, reducing the friction between the skid 1 and the track, thereby reducing the wear amount of the skid 1 and prolonging the service life of the skid 1.

[0041] The skid device further includes a flow rate detection component, which is used to detect the actual flow rate of the oil delivery hole 11. Specifically, it can be a flow rate detector. The flow rate detection component is connected to the controller 3. When the flow rate detection component feeds back a signal to the controller 3, the controller 3 determines whether the actual flow rate of the oil delivery hole 11 is consistent with the preset flow rate. If so, it controls the oil pump to continue rotating at the current speed; if not, it adjusts the current speed of the oil pump until the current speed is consistent with the preset flow rate. That is to say, the present utility model relies on the flow rate detection component to automatically adjust the speed of the oil pump according to the flow rate of the oil delivery hole 11, so as to maintain a constant flow rate of the oil delivery hole 11, stable injection speed, and ensure that the oil liquid is evenly sprayed on the track.

[0042] The skid device further includes a pump speed detection component, which is used to detect the current speed of the oil pump. Specifically, the pump speed detection component can be an encoder. The pump speed detection component is connected to the controller 3. When the pump speed detection component detects that the current speed is inconsistent with the set speed, the pump speed detection component feeds back a signal to the controller 3. After being judged and processed by the controller 3, a signal is sent to the oil pump to automatically adjust the current speed of the oil pump until the current speed is consistent with the set speed. That is to say, the present utility model can rely on the pumping detection component to automatically adjust the speed of the oil pump, so as to maintain a constant speed of the oil pump. In this way, it can also maintain a constant flow rate of the oil delivery hole 11, making the oil liquid sprayed on the track more uniform.

[0043] The skid device further includes an injection knob and a solenoid valve. The injection knob is installed on the control panel of the driver's cab. The injection knob is connected to the controller 3. When the injection knob is rotated away from the zero position mark, the rotation of the injection knob triggers a feedback signal to the controller 3, and the controller 3 generates an injection instruction to automatically start the oil pump. The zero position mark in the text is used to indicate the starting rotation position of the injection knob. The solenoid valve is connected to the controller 3 and is arranged on the oil delivery pipe 2 to control the on-off of the oil delivery pipe 2. When the controller 3 receives the injection instruction, the controller 3 controls the solenoid valve to open, so that the oil liquid in the oil delivery pipe 2 is pumped into the oil delivery hole 11 by the oil pump.

[0044] The skid device further includes an injection timer connected to the controller 3, which is used to record the injection time of the oil delivery hole 11. When the pump speed detection component detects that the current speed of the oil pump is greater than zero, it means that the oil pump starts to operate. The pump speed detection component feeds back a signal to the controller 3. After being judged and processed by the controller 3, a signal is sent to the injection timer to automatically start the injection timer to record the injection time of the oil delivery hole 11. When the injection time recorded by the injection timer reaches the set injection time, the injection timer feeds back a signal to the controller 3. After being judged and processed by the controller 3, a signal is sent to the oil pump and the solenoid valve to control the oil pump to stop rotating and control the solenoid valve to close, and the oil delivery hole 11 automatically stops injecting oil. The present utility model realizes automatic stop of oil injection according to the injection time, with high automation degree and high control precision.

[0045] The skid unit further includes a stop timer connected to the controller 3 for recording the stop fuel injection time of the fuel injection hole 11. When the pump speed detector detects that the current speed of the oil pump is equal to zero, it means that the fuel injection hole 11 stops fuel injection. The pump speed detector feeds back a signal to the controller 3. After being judged and processed by the controller 3, a signal is sent to the stop timer to automatically start the stop timer, and the stop timer starts timing. When the stop fuel injection time recorded by the stop timer reaches the set stop time, the stop timer feeds back a signal to the controller 3. After being judged and processed by the controller 3, a signal is sent to the oil pump and the solenoid valve to automatically start the oil pump and control the solenoid valve to open, realizing automatic fuel injection with relatively high control accuracy.

[0046] The skid unit further includes a rotation angle detector connected to the controller 3 for detecting the current rotation angle of the fuel injection knob rotating from the zero position mark, which can specifically be an angle sensor. When the rotation angle detector detects that the fuel injection knob rotates from the zero position mark to the current rotation angle, the rotation angle detector feeds back a signal to the controller 3. After being judged and processed by the controller 3, a signal is sent to the oil pump to automatically adjust the current speed of the oil pump until the current speed matches the current rotation angle. In this way, the speed of the oil pump can be automatically adjusted by adjusting the rotation angle of the fuel injection rotation, thereby automatically adjusting the fuel injection speed. It should be noted that the matching relationship between the current speed of the oil pump and the current rotation angle of the fuel injection knob can be pre-stored in the controller 3.

[0047] The skid unit further includes an alarm and a pressure detector. The alarm is used to give an alarm. The pressure detector is connected to the controller 3 for detecting the oil transmission pressure of the oil transmission pipe 2, which can specifically be a pressure sensor. When the pressure detector detects that the oil transmission pressure of the oil transmission pipe 2 exceeds the set pressure, the pressure detector feeds back a signal to the controller 3. After being judged and processed by the controller 3, a signal is sent to the alarm and the oil pump to start the alarm and control the oil pump to stop rotating, avoiding excessive pressure in the oil transmission pipe 2 due to blockage of the fuel injection hole 11 etc., reducing the risk of rupture of the oil transmission pipe 2, and being beneficial to extending the service life of the oil transmission pipe 2.

[0048] The skid 1 includes several groups, and each group of skids 1 is installed on one carriage; the oil pump includes several, and each group of skids 1 is configured with an oil pump. The skid unit further includes a direction indicating button connected to the controller 3 for feeding back the driving direction of the vehicle body. When the vehicle body travels in the forward direction, the direction indicating button is in the first position. The direction indicating button feeds back a signal to the controller 3. After being judged and processed by the controller 3, a signal is sent to the oil pump to adjust the speeds of all the oil pumps. In the forward direction, that is, in the direction from the front of the vehicle to the rear of the vehicle, the speeds of all the oil pumps gradually decrease, avoiding waste of resources and being more conducive to energy conservation and environmental protection.

[0049] The skid device further includes a traction force detection component connected to the controller 3, which is used to detect the current traction force of the vehicle body, specifically, it can be a tensile force sensor. When the traction force detection component detects the current traction force, it feeds back a signal to the controller 3, and the controller 3 adjusts the current rotation speed of the oil pump until the current rotation speed matches the current traction force. That is to say, the utility model can adjust the fuel injection volume of the fuel injection hole 11 according to the traction force of the maglev train during rescue. The greater the traction force, the greater the fuel injection volume, minimizing track wear to the greatest extent.

[0050] It should be noted here that the controller 3 should include a signal receiving part, a signal judging part and a signal sending part. The signal receiving part is used to receive the electrical signals sent by detection components such as a flow rate detection component, a pump speed detection component, a rotation angle detection component or a pressure detection component. The signal judging part is electrically connected to the signal receiving part so that the signal judging part is used to judge whether the signal received by the signal receiving part is a trigger signal. The signal sending part is electrically connected to the signal judging part so that the signal sending part sends the judgment signal generated by the signal judging part to an execution component such as an oil pump or an electromagnetic valve. The specific setting methods of the signal receiving part, the signal judging part and the signal sending part can refer to the prior art; in the utility model, only the application scenarios of the above three are changed, and no substantial improvement is made to them. Obviously, the controller 3 with this structure is widely used in existing automatic control devices, such as MCU, DSP or single-chip microcomputer, etc. The key point of the utility model is that the controller 3 combines each detection component and each execution component in pairs.

[0051] The embodiment of the utility model also discloses a maglev train, which includes the above skid device, and further includes a cleaning device 4 arranged at the bottom of the rear of the vehicle body, as shown in the appendix Figure 2 for cleaning the track and realizing the end cleaning function in the running direction of the maglev train. The cleaning device 4 can be realized by spraying a chemical substance that can neutralize lubricating oil or a cleaning substance, or can also be realized by various methods such as wiping and heating vaporization.

[0052] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0053] Specific examples are used in this article to elaborate on the principle and implementation mode of the utility model. The description of the above embodiments is only used to help understand the method and its core idea of the utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, several improvements and modifications can be made to the utility model, and these improvements and modifications also fall within the protection scope of the claims of the utility model.

Claims

1. A skid device, characterized in that, Comprising: A skid (1), an oil delivery hole (11) is provided inside the skid (1); An oil delivery pipe (2), the oil delivery pipe (2) is connected between the oil delivery hole (11) and the fuel tank; An oil pump, the oil pump is provided on the oil delivery pipe (2), and the oil pump is used to pump oil from the fuel tank into the oil delivery hole (11); A controller (3), the controller (3) is connected to the oil pump; the controller (3) is used to start the oil pump according to the received fuel injection instruction.

2. The skid device according to claim 1, characterized in that, Further comprising: A flow rate detection component, the flow rate detection component is used to detect the actual flow rate of the oil delivery hole (11); the flow rate detection component is connected to the controller (3), and the controller (3) is used to judge whether the actual flow rate is consistent with the preset flow rate according to the signal fed back by the flow rate detection component. If so, the controller controls the oil pump to continue rotating at the current speed; if not, the current speed of the oil pump is adjusted; A pump speed detection component, the pump speed detection component is used to detect the current speed of the oil pump; the pump speed detection component is connected to the controller (3); when the pump speed detection component detects that the current speed is inconsistent with the set speed, the controller (3) is used to adjust the current speed of the oil pump according to the signal fed back by the pump speed detection component.

3. The skid device according to claim 2, characterized in that, Further comprising: An injection knob, the injection knob is connected to the controller (3), and when the injection knob is rotated away from the zero position mark, the controller (3) generates the fuel injection instruction according to the signal fed back by the injection knob; A solenoid valve, the solenoid valve is provided on the oil delivery pipe (2) and is used to control the on-off of the oil delivery pipe (2); the solenoid valve is connected to the controller (3); when the controller (3) receives the fuel injection instruction, the solenoid valve is controlled to open.

4. The skid device according to claim 3, characterized in that, Further comprising: An injection timer, the injection timer is used to record the fuel injection time of the oil delivery hole (11); The injection timer is connected to the controller (3); when the pump speed detection component detects that the current speed of the oil pump is greater than zero, the controller (3) is used to start the injection timer according to the signal fed back by the pump speed detection component; When the fuel injection time recorded by the injection timer reaches the set fuel injection time, the controller (3) is used to control the oil pump to stop rotating and control the solenoid valve to close according to the signal fed back by the injection timer.

5. The skid device according to claim 4, characterized in that, Further comprising: A stop timer, the stop timer is used to record the stop fuel injection time of the oil delivery hole (11); The stop timer is connected to the controller (3); when the pump speed detection component detects that the current speed of the oil pump is equal to zero, the controller (3) is used to start the stop timer according to the signal fed back by the pump speed detection component; When the stop fuel injection time recorded by the stop timer reaches the set stop time, the controller (3) is used to start the oil pump and control the solenoid valve to open according to the signal fed back by the stop timer.

6. The skid device according to claim 3, characterized in that, Further comprising: A corner detection component, which is used to detect the current rotation angle of the fuel injection knob rotating from the zero position mark; the corner detection component is connected to the controller (3); when the corner detection component detects the current rotation angle, the controller (3) is used to adjust the current rotation speed of the oil pump according to the signal fed back by the corner detection component until the current rotation speed matches the current rotation angle.

7. The skid device according to any one of claims 2 to 6, characterized in that, It further includes: An alarm for giving an alarm; A pressure detection component, which is used to detect the oil delivery pressure of the oil delivery pipe (2); the pressure detection component is connected to the controller (3); when the pressure detection component detects that the oil delivery pressure of the oil delivery pipe (2) exceeds the set pressure, the controller (3) is used to start the alarm according to the signal fed back by the pressure detection component and control the oil pump to stop rotating.

8. The skid device according to any one of claims 2 to 6, characterized in that There are several groups of the skids (1), and each group of the skids (1) is installed on one carriage; there are several oil pumps, and each group of the skids (1) is configured with one oil pump; it further includes: A direction indication button, which is connected to the controller (3) and is used to feedback the driving direction of the vehicle body; when the vehicle body is driving forward, the direction indication button is in the first position, and the controller (3) is used to adjust the rotation speeds of all the oil pumps according to the signal fed back by the direction indication button. In the forward direction, the rotation speeds of all the oil pumps gradually decrease.

9. The skid device according to any one of claims 2 to 6, characterized in that, It further includes: A traction force detection component, which is used to detect the current traction force of the vehicle body; the traction force detection component is connected to the controller (3); when the traction force detection component detects the current traction force, the controller (3) is used to adjust the current rotation speed of the oil pump according to the signal fed back by the traction force detection component until the current rotation speed matches the current traction force.

10. A maglev train, characterized in that, It includes the skid device according to any one of claims 1 to 9, and further includes a cleaning device (4) provided at the bottom of the vehicle tail, and the cleaning device (4) is used to clean the track.

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