Motor locomotive curve resistance reduction device and its usage method

Abstract

The present invention discloses a resistance reduction device for a locomotive on a bend and its usage method, including: a first detection point installed on a straight section of the bend; a second detection point installed on another straight section of the bend; a probe installed at the bottom of the locomotive to cooperate with the first detection point and the second detection point; two storage boxes symmetrically installed in front of the locomotive head; a rotating shaft rotatably connected in the storage box, the axial direction of the rotating shaft being parallel to the axial direction of the wheels; a smooth coil material wound on the rotating shaft; an opening formed at the bottom of the storage box for the coil material to extend to the front of the wheels. The beneficial effect of the present invention is that by unwinding the smooth coil material, it is laid on the track within the bend section to reduce the friction between the wheels and the track. After exiting the bend section, the smooth coil material is cut or used up, and the wheels are in normal contact with the track, meeting the requirements of friction force.

Description

Technical Field

[0001] The present invention relates to the technical field of mining equipment, and particularly to a device for reducing resistance of a rail motor vehicle in a bend in an underground mine and a using method thereof. Background Art

[0002] In the transportation of ore in large underground mines, rail transportation is a common transportation method. In the coal mining industry, a sand sprinkling system is equipped (coal is prone to slipping on the track). When the motor vehicle slips, the friction of the electric locomotive can be increased to enable the electric locomotive to resume normal operation. Since the electric locomotive in non-coal mines is not prone to slipping during operation, if a sand sprinkling system is used, it will exacerbate the wear of the wheels and the track. Therefore, the sand sprinkling systems of electric locomotives cannot be used and have no meaning of existence. However, during the rail transportation process, the curve radius of the bend is relatively small. The wheel set of the mine car has 4 wheels and a turntable in the center, and it is not affected when passing through the bend. While the wheel set of the electric locomotive has 2 wheels with a distance of 2.7 meters between them. When passing through the bend curve, the resistance is large and it is difficult to pass through. It is necessary to increase the power. At the same time, the track and the wheels are severely worn, and the wheels will be squeezed against the rails to generate high temperature. At this time, both the rails and the wheels will be worn. How to reduce the resistance in the bend section and restore the normal resistance in the straight section is an urgent problem to be solved.

[0003] Chinese Patent Publication No. CN108657196A discloses a device and method for replacing a sand sprinkling device of an internal combustion locomotive, including an internal combustion locomotive viscosity increasing component that sprays high temperature and / or high pressure air flow on the connection between the track and the wheels. The internal combustion locomotive viscosity increasing component is arranged on the bogie. In this way, by spraying high temperature and pressure flue gas on the wheel-rail contact point and the track in the near front area, the wheel-rail contact surface can be quickly dried and cleaned, so that the wheel-rail friction force is restored to the dry state level, achieving the purpose of avoiding wheel spin and slip.

[0004] Chinese Patent Publication No. CN108070392A discloses a track anti-slip device and anti-slip method for a coke oven locomotive. The driving wheel speed measuring encoder is arranged on the driving wheel, and the driven wheel speed measuring encoder is arranged on the driven wheel. The technical solution has a compact and simple structure, and can automatically judge whether the track is contaminated according to the slipping condition of the coke oven trolley, and automatically perform track cleaning and interlock protection.

[0005] The above patents focus on the problem of how to prevent the electric locomotive from slipping, which is applicable in the straight section or in the case of a large slope, or when there are sundries such as floating soil, silt, and mortar adhering to the track. However, it is not applicable when it is necessary to reduce the frictional resistance in the bend section.

[0006] China's invention patent publication number CN112455472A discloses a spray control device for a curve of an underground rail-mounted unmanned electric locomotive in a mine, including a spray pipe and a housing installed beside the underground rail-mounted curve, a microcontroller, a power supply, a spray relay, a wireless communicator, an Ethernet communicator, and an EEPROM memory arranged in the housing, a water pressure collector installed on the spray pipe, a spray relay connected to a spray solenoid valve on the spray pipe, a microcontroller connected to a power supply, a spray relay, a wireless communicator, an Ethernet communicator, and an EEPROM memory, a water pressure collector connected, and a power supply connected to an Ethernet communicator and an EEPROM memory. Although the patent can reduce the friction resistance in the curve section, since the spray water is in direct contact with the wheels, when the electric locomotive drives out of the curve section, the demand has changed from wanting to reduce the friction resistance to wanting to increase the friction resistance to prevent the wheels from slipping. At this time, the water on the wheels will increase the risk of wheel slipping. Summary of the invention

[0007] The technical problem to be solved by the present invention is that although the existing electric locomotive can reduce resistance by spraying water on a curve, it will bring a risk of wheel slippage after exiting the curve. Therefore, an electric locomotive curve resistance reduction device and a method of using the device are provided, which can reduce resistance in the curve section without giving the risk of wheel slippage after the curve section.

[0008] The technical solution of the present invention is: a curve resistance reduction device for an electric locomotive, comprising: a first detection point, the first detection point is installed on a sleeper of a straight section of the curve; a second detection point, the second detection point is installed on a sleeper of another straight section of the curve; a probe, the probe is installed at the bottom of the electric locomotive and cooperates with the first detection point and the second detection point; a storage box, there are two storage boxes, which are symmetrically installed in front of the front of the electric locomotive; a rotating shaft, the rotating shaft is rotatably connected in the storage box, and the axial direction of the rotating shaft is parallel to the axial direction of the wheel; a driving mechanism, the driving mechanism is connected to the probe signal and is transmission-connected to the rotating shaft; a smooth coil, the smooth coil is rolled on the rotating shaft; an opening, the opening is opened at the bottom of the storage box for the coil to extend to the front of the wheel.

[0009] An improvement to the above scheme is that a cutting mechanism is provided between the rotating shaft and the opening, and the cutting mechanism includes a cylinder horizontally fixed to the side wall of the storage box, the cylinder is connected to the probe signal, a cutter whose length matches the smooth coil is fixed to the telescopic rod of the cylinder, and a cutting groove is fixed to the side wall of the storage box opposite to the cylinder, and the cutting groove is conformally matched with the cutter.

[0010] A further improvement of the above solution is that lubricating oil is applied to the cutter.

[0011] A further improvement of the above solution is that an inverted U-shaped water tank is provided above the storage box. A water filling port is opened at the closed end of the U-shaped water tank. Two free ends of the U-shaped water tank are communicated with a water pipe, and the water pipe extends into the corresponding storage box and faces the coiled material.

[0012] Another improvement of the above solution is that a solenoid valve signal-connected to the probe is communicated with the water pipe.

[0013] The usage method of the resistance reduction device for the locomotive on the bend includes the following steps: When the locomotive travels above the first detection point, the probe receives the signal of the first detection point and sends a signal to the motor to make it rotate. The smooth coiled material is unrolled and falls from the opening to be laid on the track, and the wheels contact the smooth coiled material instead of the track; When the locomotive travels above the second detection point, the probe receives the signal of the second detection point and sends a signal to the motor to make it rotate in the reverse direction. The smooth coiled material is pulled and disconnected by the motor and the wheels. When the locomotive completely travels out of the bend, the wheels contact the track.

[0014] Another usage method of the resistance reduction device for the locomotive on the bend includes the following steps: When the locomotive travels above the first detection point, the probe receives the signal of the first detection point and sends a signal to the motor to make it rotate. The smooth coiled material is unrolled and falls from the opening to be laid on the track, and the wheels contact the smooth coiled material instead of the track; When the locomotive travels above the second detection point, the probe receives the signal of the second detection point and sends a signal to the air cylinder, so that the cutting knife moves into the cutting groove to cut the smooth coiled material. When the locomotive completely travels out of the bend, the wheels will contact the track.

[0015] The beneficial effect of the present invention is that by unrolling the smooth coiled material and laying it on the track in the bend section, the friction between the wheels and the track is reduced. After leaving the bend section, the smooth coiled material is cut or used up, and the wheels contact the track normally, meeting the requirements of the friction. Brief Description of the Drawings

[0016] Figure 1 is the bend schematic diagram of the present invention;

[0017] Figure 2 is the schematic diagram of the storage box and its internal structure of Embodiment 1 of the present invention;

[0018] Figure 3 is the schematic diagram of the storage box and its internal structure of Embodiment 2 of the present invention;

[0019] Figure 4 is the schematic diagram of the usage state of Embodiment 2 of the present invention;

[0020] In the figure, 1 is the first detection point, 2 is the second detection point, 3 is the probe, 4 is the storage box, 5 is the rotating shaft, 6 is the smooth coil material, 7 is the cylinder, 8 is the cutting groove, 9 is the U-shaped water tank, 10 is the water filling port, 11 is the water pipe, and 12 is the solenoid valve. Specific implementation mode

[0021] Combined with the embodiments below, the technical solutions in the present invention are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present invention.

[0022] Embodiment 1: The resistance reduction device for the curve of the electric locomotive includes: as Figure 1 , 2 and shown in 4, the first detection point 1, which is installed on the sleeper of a straight track section of the curve; the second detection point 2, which is installed on the sleeper of the other straight track section of the curve; the probe 3, which is installed at the bottom of the electric locomotive and cooperates with the first detection point and the second detection point; the storage box 4, there are two storage boxes, symmetrically installed in front of the head of the electric locomotive; the rotating shaft 5, which is rotatably connected in the storage box, and the axial direction of the rotating shaft is parallel to the axial direction of the wheel; the driving mechanism, which is signal-connected to the probe and transmission-connected to the rotating shaft, and the driving mechanism can be a motor, a motor, etc.; the smooth coil material 6, which is wound on the rotating shaft. Here, smooth means a material with a relatively small friction coefficient, such as Teflon, polyethylene, acrylic and other sheets, which are formed into a coil by winding on the rotating shaft. The width of the smooth coil material is approximately equal to the width of the track. One end of the smooth coil material is bonded or fixed in other ways on the rotating shaft. The length of the smooth coil material can be designed in advance and is equivalent to the overall length of the curve. When the smooth coil material reaches the end, one end of the smooth coil material is pulled and disconnected from the rotating shaft; the opening, which is opened at the bottom of the storage box for the coil material to extend to the front of the wheel, and the width of the opening is the same as the width of the smooth coil material.

[0023] The using method of the resistance reduction device for the curve of the electric locomotive includes the following steps: When the electric locomotive travels above the first detection point, the probe receives the signal of the first detection point and sends a signal to the motor to make it rotate, and the smooth coil material is unrolled and falls from the opening to be laid on the track, and the wheel contacts the smooth coil material instead of the track; when the electric locomotive travels above the second detection point, the probe receives the signal of the second detection point and sends a signal to the motor to make it rotate in the reverse direction, and the smooth coil material is pulled and disconnected by the motor and the wheel. When the electric locomotive completely travels out of the curve, the wheel contacts the track.

[0024] Embodiment 2: As Figure 3As shown in the figure, the difference from Embodiment 1 is that a cutting mechanism is provided between the rotating shaft and the opening. The cutting mechanism includes a cylinder 7 fixedly connected horizontally to the side wall of the storage box. The cylinder is signal-connected to the probe. A cutter with a length matching the smooth coil is fixedly connected to the telescopic rod of the cylinder. A cutting groove 8 is fixedly connected to the side wall of the storage box opposite to the cylinder. The cutting groove is conformally matched with the cutter. At this time, the length of the smooth coil can exceed the overall length of the bend. The distance of the smooth coil laid on the bend is controlled by the cutter, and the operation of the cutter is controlled by the linkage of the second detection point, the probe and the cylinder.

[0025] The usage method of the resistance reduction device for the locomotive bend includes the following steps: When the locomotive travels above the first detection point, the probe receives the signal of the first detection point and sends a signal to the motor to make it rotate. The smooth coil is unrolled and falls from the opening to be laid on the track, and the wheels contact the smooth coil instead of the track; When the locomotive travels above the second detection point, the probe receives the signal of the second detection point and sends a signal to the cylinder, so that the cutter moves into the cutting groove to cut off the smooth coil. When the locomotive completely travels out of the bend, the wheels will contact the track.

[0026] Embodiment 3: The difference from Embodiment 1 is that in order to further reduce the friction force, lubricating oil can be applied to the cutter. In this way, when the smooth coil is laid on the track, the surface in contact with the track is coated with lubricating oil, which can reduce the friction force between the smooth coil and the track.

[0027] Embodiment 4: The difference from Embodiment 1 is that an inverted U-shaped water tank 9 is provided above the storage box. A water filling port 10 is opened at the closed end of the U-shaped water tank. Two free ends of the U-shaped water tank are connected with a water pipe 11, and the water pipe extends into the corresponding storage box and faces the coil. By injecting water into the water filling port of the U-shaped water tank, the surface of the smooth coil in contact with the track is sprayed with water through the water pipe to reduce the friction between the smooth coil and the track.

[0028] Embodiment 5: The difference from Embodiment 4 is that a solenoid valve 12 signal-connected to the probe is connected to the water pipe. The opening and closing time of the water pipe can be controlled through the solenoid valve, so that the water pipe sprays water within the traveling distance between the first detection point and the second detection point, preventing the water from being sprayed in other sections and contacting the wheels.

[0029] The above embodiments can be combined arbitrarily according to needs, as long as the obtained solutions do not conflict, they all fall within the protection scope of the present invention.

Claims

1. The resistance reduction device for the curve of the electric locomotive is characterized in that: include: A first detection point (1), the first detection point being installed on a sleeper of a straight section of the curve; A second detection point (2), the second detection point is installed on a sleeper of another straight section of the curve; a probe (3), the probe is installed at the bottom of the electric locomotive and cooperates with the first detection point and the second detection point; a storage box (4), there are two storage boxes, which are symmetrically installed in front of the front of the electric locomotive; a rotating shaft (5), the rotating shaft is rotatably connected in the storage box, and the axial direction of the rotating shaft is parallel to the axial direction of the wheel; a motor, the motor is connected to the probe signal and is connected to the rotating shaft for transmission; a smooth coil (6), the smooth coil is rolled on the rotating shaft; an opening, the opening is opened at the bottom of the storage box for the coil to extend to the front of the wheel.

2. The locomotive curve resistance reduction device according to claim 1, characterized in that: A cutting mechanism is provided between the rotating shaft and the opening, the cutting mechanism comprising a cylinder (7) horizontally fixed to the side wall of the storage box, the cylinder being connected to the probe signal, a cutter having a length matching that of the smooth coiled material being fixed to the telescopic rod of the cylinder, a cutting groove (8) being fixed to the side wall of the storage box opposite to the cylinder, the cutting groove conformingly matching that of the cutter.

3. The motor vehicle curve resistance reduction device according to claim 2, characterized in that: The cutter is smeared with lubricating oil.

4. The locomotive curve resistance reduction device according to claim 1, characterized in that: An inverted U-shaped water tank (9) is provided above the storage box, a water inlet (10) is provided on the closed end of the U-shaped water tank, two free ends of the U-shaped water tank are connected to water pipes (11), and the water pipes extend into the corresponding storage box and face the coiled material.

5. The motor vehicle bend resistance reduction device according to claim 4, characterized in that: The water pipe is connected to a solenoid valve (12) which is connected to the probe signal.

6. The usage method of the resistance reduction device for the locomotive on a curve according to claim 1, characterized in that: The following steps are involved: When the electric locomotive travels over the first detection point, the probe receives the signal from the first detection point and sends a signal to the motor to make it rotate. The smooth coil is unrolled and falls from the opening to be laid on the track. The wheels are in contact with the smooth coil but not with the track. When the electric locomotive travels over the second detection point, the probe receives the signal from the second detection point and sends a signal to the motor to make it rotate in the opposite direction. The smooth coil is pulled apart by the motor and the wheels. When the electric locomotive completely drives out of the curve, the wheels are in contact with the track.

7. The method for using the resistance reduction device for a locomotive on a bend according to claim 2, characterized in that: The following steps are involved: When the electric locomotive travels above the first detection point, the probe receives the signal from the first detection point and sends a signal to the motor to make it rotate. The smooth coil is unrolled and falls from the opening to be laid on the track. The wheels are in contact with the smooth coil but not with the track. When the electric locomotive travels above the second detection point, the probe receives the signal from the second detection point and sends a signal to the cylinder, so that the cutter moves into the cutting groove to cut off the smooth coil. When the electric locomotive completely drives out of the curve, the wheels will contact the track.

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