Generator set for railway

Abstract

The invention discloses a generator set for railways, which belongs to the technical field of generators and comprises a bottom plate and a base, a generator body is mounted on the bottom plate, a protective cover fixedly connected with the bottom plate is sleeved outside the generator body, and a heat dissipation component is arranged on the protective cover; the heat dissipation assembly comprises an air inlet and an air outlet which are formed in the protective cover. According to the scheme, by arranging the dust blocking plate, after the generator body is used, the dust blocking plate can block the filter screen, and it is avoided that when the generator body stops working, dust and sandy soil in air are accumulated on the surface of the filter screen, the filter screen is blocked, the heat dissipation effect of the generator body is affected, and the aging speed of the device is increased. And through arrangement of a memory alloy wire, the dust blocking plate blocks the filter screen only after heat dissipation of the generator body is finished, so that the situation that after the generator body is closed, waste heat cannot be conducted to the outside through airflow, and the service life of the generator body is affected is avoided, and the effect of prolonging the service life of the device is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of generators, and more specifically, to a generator set for railways. Background Art

[0002] The principle of a generator set is that diesel fuel shrinks in volume within the generator set, the temperature rises rapidly, reaching the ignition point of diesel fuel; then the diesel fuel is ignited, the mixture burns violently, the volume expands rapidly, pushing the piston downward, which is called 'working'; each cylinder performs work in a certain order in turn, and the thrust acting on the piston becomes the force that drives the crankshaft to rotate through the connecting rod, thus driving the crankshaft to rotate; using the principle of 'electromagnetic induction', the generator will output an induced electromotive force, and an electric current can be generated through a closed load circuit.

[0003] Since railway construction sites are relatively remote and power facilities are relatively lacking, generator sets are often required for power supply. When the generator mechanism starts, since the heat generated by the generator mechanism needs to be discharged, a ventilation opening is provided at the tail of the generator mechanism to improve the ventilation conditions inside the generator mechanism by using the ventilation opening, and reduce the local overheating phenomenon caused by poor air circulation, and further protect each component of the generator. However, due to the relatively harsh environment at railway construction sites, there is a lot of dust and sand. During the operation of the generator mechanism, minute particles such as dust and sand that may exist in the surrounding environment may enter the generator through the ventilation opening, and the accumulation of this dust may affect the performance of the generator mechanism.

[0004] In response to the above problems, some solutions have also been given in the prior art. For example, a Chinese invention patent with the publication number CN119076219B discloses a gasoline generator. Through the cooperation of a conductive frame and a first conductive rod, when dust passes through the conductive frame, electric charges released by the conductive frame will adhere to the surface of the dust. Also, because the conductive frame and the first conductive rod carry the same kind of electric charges, using the principle that like charges repel each other, when the dust reaches the first conductive rod, it will be repelled, thereby isolating the dust and preventing it from continuing to enter the generator mechanism through the ventilation pipe and accumulating, resulting in the problem that the performance of the generator mechanism is affected, effectively improving the service life of the device. Although the prior art can prevent dust from entering the generator mechanism during use and affecting the service life of the device, after the device used for railway construction stops working, in order to avoid waste of electric power resources, the conductive frame and the first conductive rod are usually powered off all the time. Due to the relatively harsh environment of railway construction, there is a lot of dust and sand in the air. After the conductive frame and the first conductive rod are powered off, dust easily enters the generator and affects the service life of the device. Summary of the Invention

[0005] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a generator set for railways, which can achieve the purpose of extending the service life of the device.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A generator set for railways includes a bottom plate and a base. A generator body is installed on the bottom plate. A protective cover fixedly connected to the bottom plate is sleeved outside the generator body. A heat dissipation component is provided on the protective cover. The heat dissipation component includes an air inlet and an air outlet opened on the protective cover. Filters are provided in both the air inlet and the air outlet. Vertical rods are symmetrically installed on the top wall of the bottom plate. A limiting rod is vertically slidably installed on the vertical rod. A dust blocking plate for blocking the air inlet and the air outlet is provided on the limiting rod. One end of the limiting rod far from the vertical rod is fixedly connected to the dust blocking plate. A magnet block is embedded in the dust blocking plate. An electromagnet electrically connected to the generator body is provided on the bottom plate. A first spring is commonly installed between the bottom wall of the dust blocking plate and the vertical rod.

[0008] Further, an installation block is vertically slidably installed on the limiting rod. One end of the first spring far from the vertical rod is fixedly connected to the installation block. The electromagnet is embedded in the installation block. A vertical groove is opened on the dust blocking plate. A second spring is commonly installed between the top wall of the vertical groove and the installation block. A shape memory alloy wire is commonly installed between the top wall of the vertical groove and the installation block. A heat conducting rod in contact with the generator body is installed on the top wall of the vertical groove. One end of the heat conducting rod far from the generator body is in contact with the shape memory alloy wire. A limiting block for restricting the movement of the dust blocking plate is fixedly installed on the protective cover.

[0009] Further, a damping groove is opened on the base. The bottom plate is slidably matched with the damping groove. A damping spring is commonly installed between the bottom wall of the bottom plate and the damping groove. A locking component for cooperating with the base is provided on the bottom plate.

[0010] Further, the locking component includes a horizontal groove opened on the bottom plate. One end of the limiting rod far from the dust blocking plate extends into the horizontal groove. A spring telescopic rod is slidably installed in the horizontal groove. A third spring is commonly installed between the spring telescopic rod and the horizontal groove. One end of the spring telescopic rod far from the third spring is a slope. A fixing groove for cooperating with the output end of the spring telescopic rod is opened on the side wall of the damping groove.

[0011] Further, one end of the spring telescopic rod close to the fixing groove is conical.

[0012] Further, the filters are respectively slidably matched with the corresponding air inlets and air outlets. A jitter spring is commonly installed between the filters and the protective cover. A jitter block is fixedly installed on the side wall of the filter far from the jitter spring.

[0013] Further, an air groove is formed in the top wall of the bottom plate. An installation rod is vertically and slidably installed in the air groove. A return spring is jointly installed between the installation rod and the air groove. A push block for pushing the shaking block to move is fixedly installed on the top wall of the installation rod, and one end of the push block close to the shaking block is an inclined surface.

[0014] Further, an installation groove is formed in the shaking block, and a rolling rod is rotatably installed in the installation groove.

[0015] Further, a heat insulation sleeve is sleeved on the surface of the shape memory alloy wire.

[0016] Further, a cleaning plate is fixedly installed on the bottom wall of the dust blocking plate, and cleaning hairs are uniformly and fixedly installed on the side wall of the cleaning plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) In this solution, by setting the dust blocking plate, after the generator body stops using, the dust blocking plate can block the filter screen, avoiding the accumulation of dust and sand in the air on the surface of the filter screen when the generator body stops working, which may cause the filter screen to be blocked, affecting the heat dissipation effect of the generator body, accelerating the aging speed of the device, and the setting of the shape memory alloy wire enables the dust blocking plate to block the filter screen only after the heat dissipation of the generator body is completed, thus avoiding the residual heat of the generator body being unable to be conducted to the outside through the air flow after the generator body is closed, affecting the service life of the generator body, and playing a role in improving the service life of the device; (2) In this solution, by setting the damping spring, during the shaking process of the generator body, the generator body transmits the vibration to the damping spring through the bottom plate. At this time, the damping spring can perform damping treatment on the generator body. At the same time, when the dust blocking plate blocks the filter screen, the dust blocking plate drives the output end of the spring telescopic rod to insert into the fixing groove through the limiting rod, thereby fixing the bottom plate, thus avoiding the damping spring being in a stressed state for a long time, affecting the service life of the damping spring, and further improving the service life of the device; (3) In this solution, by setting the shaking spring, during the process of the bottom plate moving downward and compressing the damping spring, the air flow in the damping groove is squeezed and flows into the air groove. Then, under the action of the air flow, the installation rod drives the push block to move upward. During the upward movement of the push block, it can drive the filter screen to swing back and forth, shake off some stains on the surface of the filter screen, and at the same time make the stains on the surface of the filter screen become loose, facilitating the subsequent cleaning of impurities on the surface of the filter screen, thereby ensuring that the air flow can pass through the filter screen normally, and further improving the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a structural schematic diagram of the present invention; Figure 2 is a cross-sectional view of the dust blocking plate, installation block, and vertical rod of the present invention; Figure 3 It is a cross-sectional view of the protective cover, bottom plate, and base of the present invention; Figure 4 For the present invention Figure 3 The enlarged view at position A in; Figure 5 For the present invention Figure 3 The enlarged view at position B in; Figure 6 It is a combined view of the base, bottom plate, spring telescopic rod, and limit rod of the present invention; Figure 7 It is a combined view of the cleaning plate, cleaning wool, and dust blocking plate of the present invention; Figure 8 It is a schematic structural diagram of the spring telescopic rod of the present invention.

[0019] Explanation of the reference numerals in the figure: 1. Bottom plate; 2. Base; 3. Generator body; 4. Protective cover; 5. Heat dissipation component; 501. Air inlet; 502. Air outlet; 503. Vertical rod; 504. Limit rod; 505. Dust blocking plate; 506. Magnet block; 507. Electromagnet; 508. First spring; 509. Filter screen; 601. Mounting block; 602. Second spring; 603. Shape memory alloy wire; 604. Heat conducting rod; 605. Limit block; 701. Vibration damping groove; 702. Vibration damping spring; 703. Locking component; 7031. Spring telescopic rod; 7032. Third spring; 7033. Fixed groove; 801. Jitter spring; 802. Jitter block; 803. Air groove; 804. Mounting rod; 805. Return spring; 806. Push block; 807. Roller; 9. Heat preservation sleeve; 10. Cleaning plate; 11. Cleaning wool. Specific implementation manners

[0020] 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 making creative efforts belong to the scope of protection of the present invention.

[0021] Please refer to Figures 1 to 8 , a railway generator set, including a bottom plate 1 and a base 2, a generator body 3 is installed on the bottom plate 1, a protective cover 4 fixedly connected to the bottom plate 1 is sleeved outside the generator body 3, and a heat dissipation component 5 is provided on the protective cover 4; The heat dissipation component 5 includes an air inlet 501 and an exhaust port 502 opened on the protective cover 4, and a filter screen 509 is provided in the air inlet 501 and the exhaust port 502. Vertical rods 503 are symmetrically installed on the top wall of the base plate 1, and a limiting rod 504 is vertically slidably installed on the vertical rod 503. A dust blocking plate 505 for blocking the air inlet 501 and the exhaust port 502 is provided on the limiting rod 504, and one end of the limiting rod 504 away from the vertical rod 503 is fixedly connected to the dust blocking plate 505, and a magnet block 506 is embedded in the dust blocking plate 505. An electromagnet 507 electrically connected to the generator body 3 is provided on the base plate 1, and a first spring 508 is commonly installed between the bottom wall of the dust blocking plate 505 and the vertical rod 503.

[0022] A mounting block 601 is vertically slidably installed on the limit rod 504, and the end of the first spring 508 away from the vertical rod 503 is fixedly connected to the mounting block 601, the electromagnet 507 is embedded in the mounting block 601, and a vertical groove is opened on the dust blocking plate 505, and a second spring 602 is installed between the top wall of the vertical groove and the mounting block 601, and a memory alloy wire 603 is installed between the top wall of the vertical groove and the mounting block 601, a heat conducting rod 604 that fits with the generator body 3 is installed on the top wall of the vertical groove, and the end of the heat conducting rod 604 away from the generator body 3 is fitted with the memory alloy wire 603, and a limit block 605 for limiting the movement of the dust blocking plate 505 is fixedly installed on the protective cover 4.

[0023] When the generator body 3 is working, the electromagnet 507 is energized, and then the magnet block 506 drives the mounting block 601 to move upward under the action of the magnetic field of the electromagnet 507, and stretches the first spring 508, and in the process of the mounting block 601 moving upward, drives the dust blocking plate 505 to move upward and disengages from the filter 509. At this time, the radiator inside the generator body 3 can drive the airflow to flow into the protective cover 4 through the air inlet 501, and drive the heat of the generator body 3 to flow out from the exhaust port 502, thereby achieving the purpose of heat dissipation. When the generator body 3 stops working, the electromagnet 507 is powered off and the magnetic field disappears, and then the first spring 508 contracts, and drives the dust blocking plate 505 to move downward through the mounting block 601, so that the filter 509 can be blocked, so as to avoid the accumulation of dust and sand in the air on the surface of the filter 509 when the generator body 3 stops working, causing the filter 509 to be blocked, affecting the heat dissipation effect of the generator body 3, and causing the device to age faster, thereby improving the service life of the device.

[0024] During the process of the magnet block 506 driving the dust-proof plate 505 to move upward through the mounting block 601, the dust-proof plate 505 gradually comes into contact with the limiting block 605, and under the action of the limiting block 605, the dust-proof plate 505 cannot continue to move upward. As the temperature of the generator body 3 rises, the generator body 3 transfers the temperature to the shape memory alloy wire 603 through the heat-conducting rod 604, causing the shape memory alloy wire 603 to extend. At this time, the second spring 602 has a tendency to extend. After the generator body 3 stops working, as the first spring 508 drives the mounting block 601 to move downward, the second spring 602 extends and makes the dust-proof plate 505 always fit with the limiting block 605. Then the air flow in the protective cover 4 can circulate with the outside. When the temperature of the generator body 3 returns to normal, the shape memory alloy wire 603 returns to its normal temperature and contracts. During the contraction process of the shape memory alloy wire 603, it drives the dust-proof plate 505 to move downward. At this time, the second spring 602 is compressed and has a tendency to extend. That is, through the cooperation of the shape memory alloy wire 603 and the second spring 602, after the heat dissipation of the generator body 3 is completed, the dust-proof plate 505 will block the filter screen 509, thus avoiding the situation that the residual heat cannot be conducted to the outside through the air flow after the generator body 3 is turned off, affecting the service life of the generator body 3, and further improving the service life of the device.

[0025] As Figure 2 , Figure 6 , Figure 8 As shown, a damping groove 701 is formed in the base 2, and the bottom plate 1 is slidably matched with the damping groove 701. A damping spring 702 is jointly installed between the bottom wall of the bottom plate 1 and the damping groove 701. A locking assembly 703 for cooperating with the base 2 is provided on the bottom plate 1.

[0026] The locking assembly 703 includes a horizontal groove formed in the bottom plate 1, and one end of the limiting rod 504 away from the dust-proof plate 505 extends into the horizontal groove. A spring telescopic rod 7031 is slidably installed in the horizontal groove. A third spring 7032 is jointly installed between the spring telescopic rod 7031 and the horizontal groove. One end of the spring telescopic rod 7031 away from the third spring 7032 is an inclined surface. A fixing groove 7033 for cooperating with the output end of the spring telescopic rod 7031 is formed on the side wall of the damping groove 701.

[0027] One end of the spring telescopic rod 7031 close to the fixing groove 7033 is conical.

[0028] By adopting the above technical solution, during the initial startup and high-load operation of the generator body 3, the generator body 3 will vibrate violently. If vibration reduction cannot be carried out in time, it is easy to affect the service life of the generator body 3. During the vibration of the generator body 3, the generator body 3 transmits the vibration to the vibration reduction spring 702 through the bottom plate 1. At this time, the vibration reduction spring 702 can perform vibration reduction treatment on the generator body 3, further improving the service life of the device.

[0029] During the process of the magnet block 506 driving the dust blocking plate 505 to move upward through the mounting block 601, the dust blocking plate 505 drives the limiting rod 504 to move upward, and during the upward movement of the limiting rod 504, it gradually disengages from the inclined surface of the spring telescopic rod 7031. At this time, the third spring 7032 extends and drives the spring telescopic rod 7031 to disengage from the fixing groove 7033. At this time, the bottom plate 1 can slide normally in the vibration reduction groove 701. Then, during the process of the dust blocking plate 505 moving downward and blocking the filter screen 509, the dust blocking plate 505 drives the limiting rod 504 to move downward, and during the downward movement of the limiting rod 504, it gradually contacts the inclined surface of the spring telescopic rod 7031 and applies a thrust to the inclined surface of the spring telescopic rod 7031. Then, under the action of the thrust, the spring telescopic rod 7031 moves along the horizontal groove, and when the output end of the spring telescopic rod 7031 does not contact the fixing groove 7033, as the spring telescopic rod 7031 moves, the output end of the spring telescopic rod 7031 is compressed and has a tendency to extend. Then, when the bottom plate 1 vibrates, it drives the spring telescopic rod 7031 to vibrate, and when the vibration reduction spring 702 is in a free extended state, the output end of the spring telescopic rod 7031 contacts the fixing groove 7033. At this time, the output end of the spring telescopic rod 7031 extends and inserts into the fixing groove 7033, thereby fixing the bottom plate 1, thus avoiding the vibration reduction spring 702 being in a stressed state for a long time and affecting the service life of the vibration reduction spring 702, further improving the service life of the device.

[0030] During the process of the output end of the spring telescopic rod 7031 inserting into the fixing groove 7033, by making the end of the spring telescopic rod 7031 close to the fixing groove 7033 be an inclined surface, it is convenient for the output end of the spring telescopic rod 7031 to insert into the fixing groove 7033.

[0031] As Figure 3 、 Figure 4 、 Figure 5 shown, the filter screen 509 is respectively in sliding fit with the corresponding air inlet 501 and air outlet 502. A jitter spring 801 is installed between the filter screen 509 and the protective cover 4. A jitter block 802 is fixedly installed on the side wall of the filter screen 509 away from the jitter spring 801.

[0032] An air groove 803 is formed on the top wall of the bottom plate 1. An installation rod 804 is vertically and slidably installed in the air groove 803. A return spring 805 is installed between the installation rod 804 and the air groove 803. A push block 806 for pushing the shaking block 802 to move is fixedly installed on the top wall of the installation rod 804, and one end of the push block 806 close to the shaking block 802 is a slope.

[0033] An installation groove is formed in the shaking block 802, and a rolling rod 807 is rotatably installed in the installation groove.

[0034] By adopting the above technical solution, during the process of the bottom plate 1 moving downward and compressing the damping spring 702, the air flow in the damping groove 701 is squeezed and flows into the air groove 803. Then the gas pressure in the air groove 803 increases. Under the action of the pressure in the air groove 803, the installation rod 804 moves downward and compresses the return spring 805. And during the process of the installation rod 804 moving upward, the slope of the push block 806 gradually contacts the shaking block 802. Then under the action of the slope of the push block 806, the shaking block 802 drives the filter screen 509 to compress the shaking spring 801. And as the installation rod 804 drives the push block 806 to move upward, the push block 806 gradually disengages from the shaking block 802. When the push block 806 disengages from the shaking block 802, the shaking spring 801 drives the filter screen 509 to swing and reset. Then when the damping spring 702 drives the bottom plate 1 to move upward, the damping groove 701 sucks air from the air groove 803 and makes the pressure in the air groove 803 return to normal. At this time, the return spring 805 contracts and drives the installation rod 804 to reset. And during the process of the installation rod 804 resetting, it drives the push block 806 to push the shaking block 802 to move again. When the push block 806 disengages from the shaking block 802 again, the shaking spring 801 drives the filter screen 509 to swing again. And during the process of the filter screen 509 swinging back and forth, it can drive the impurities on the surface of the filter screen 509 to shake, shake off some stains on the surface of the filter screen 509, and at the same time make the stains on the surface of the filter screen 509 become loose, which is convenient for subsequent cleaning of the impurities on the surface of the filter screen 509, so as to ensure that the air flow can pass through the filter screen 509 normally, and thus improve the heat dissipation effect.

[0035] During the process of the push block 806 driving the shaking block 802 to move, by arranging the rolling rod 807, the sliding friction between the push block 806 and the shaking block 802 can be converted into the rolling friction between the rolling rod 807 and the shaking block 802, so as to reduce the wear of the push block 806 and the shaking block 802, and at the same time reduce the friction force between the push block 806 and the shaking block 802, so as to ensure that the push block 806 can drive the shaking block 802 to move normally.

[0036] As Figure 2 shown, a heat preservation sleeve 9 is sleeved on the surface of the shape memory alloy wire 603.

[0037] By adopting the above technical solution, by providing the heat insulation sleeve 9, it can be ensured that the heat conducting rod 604 can quickly and accurately transfer the temperature of the generator body 3 to the shape memory alloy wire 603, and enable the shape memory alloy wire 603 to quickly respond to the temperature change of the generator body 3.

[0038] As Figure 7 shown, a cleaning plate 10 is fixedly installed on the bottom wall of the dust blocking plate 505, and cleaning hairs 11 are uniformly fixedly installed on the side wall of the cleaning plate 10.

[0039] By adopting the above technical solution, during the movement of the dust blocking plate 505, the cleaning plate 10 is driven to move, and during the movement of the cleaning plate 10, the cleaning hairs 11 can be driven to clean the stains on the surface of the filter screen 509, so as to ensure that the air flow can normally pass through the filter screen 509, thereby improving the heat dissipation effect.

[0040] Usage method: When the generator body 3 stops working, the electromagnet 507 is powered off and the magnetic field disappears. Then, the first spring 508 contracts and drives the dust blocking plate 505 to move downward through the mounting block 601, so as to block the filter screen 509. After the generator body 3 stops working, as the first spring 508 drives the mounting block 601 to move downward, the second spring 602 extends and makes the dust blocking plate 505 always fit with the limiting block 605. Then, the air flow inside the protective cover 4 can circulate with the outside. And when the temperature of the generator body 3 returns to normal, the shape memory alloy wire 603 returns to the normal temperature and contracts. During the contraction process of the shape memory alloy wire 603, it drives the dust blocking plate 505 to move downward. At this time, the second spring 602 is compressed and has a tendency to extend. That is, through the cooperation of the shape memory alloy wire 603 and the second spring 602, after the heat dissipation of the generator body 3 is completed, the dust blocking plate 505 will block the filter screen 509. During the shaking process of the generator body 3, the generator body 3 transmits the vibration to the damping spring 702 through the bottom plate 1. At this time, the damping spring 702 can perform damping treatment on the generator body 3. Under the action of the thrust, the spring telescopic rod 7031 moves along the horizontal groove. And when the output end of the spring telescopic rod 7031 does not contact the fixed groove 7033, as the spring telescopic rod 7031 moves, the output end of the spring telescopic rod 7031 is compressed and has a tendency to extend. Then, when the bottom plate 1 shakes, it will drive the spring telescopic rod 7031 to shake. And when the damping spring 702 is in the free extension state, the output end of the spring telescopic rod 7031 contacts the fixed groove 7033. At this time, the output end of the spring telescopic rod 7031 extends and inserts into the fixed groove 7033, so as to fix the bottom plate 1, thus avoiding the damping spring 702 being in the stressed state for a long time and affecting the service life of the damping spring 702. During the process of the bottom plate 1 moving downward and compressing the damping spring 702, the air flow in the damping groove 701 is squeezed and flows into the air groove 803. Then, the gas pressure in the air groove 803 increases. Under the action of the pressure in the air groove 803, the mounting rod 804 moves downward and compresses the return spring 805. And during the upward movement of the mounting rod 804, it drives the inclined surface of the push block 806 to gradually contact the shaking block 802. Then, under the action of the inclined surface of the push block 806, the shaking block 802 drives the filter screen 509 to compress the shaking spring 801. And as the mounting rod 804 drives the push block 806 to move upward, the push block 806 gradually disengages from the shaking block 802. When the push block 806 disengages from the shaking block 802, the shaking spring 801 drives the filter screen 509 to swing and reset. And during the back-and-forth swinging process of the filter screen 509, it can drive the impurities on the surface of the filter screen 509 to shake and shake off some of the stains on the surface of the filter screen 509. At the same time, it can also make the stains on the surface of the filter screen 509 become loose, which is convenient for subsequent cleaning of the impurities on the surface of the filter screen 509.

[0041] The above are only the preferred specific embodiments of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. A railway generator set, comprising a base plate (1) and a base (2), wherein a generator body (3) is mounted on the base plate (1), a protective cover (4) fixedly connected to the base plate (1) is disposed on the outer cover of the generator body (3), and a heat dissipation component (5) is disposed on the protective cover (4); Features: The heat dissipation assembly (5) comprises an air inlet (501) and an air outlet (502) provided on the protective cover (4), wherein the air inlet (501) and the air outlet (502) are both provided with filter screens (509), and vertical rods (503) are symmetrically mounted on the top wall of the bottom plate (1), and a limiting rod (504) is vertically slidably mounted on the vertical rod (503), and the limiting rod (504) is provided with a filter for blocking the air inlet (501) and the air outlet (502). A dust blocking plate (505) is provided at the air port (502), and one end of the limit rod (504) away from the vertical rod (503) is fixedly connected to the dust blocking plate (505), a magnet block (506) is embedded in the dust blocking plate (505), an electromagnet (507) electrically connected to the generator body (3) is provided on the bottom plate (1), and a first spring (508) is installed between the bottom wall of the dust blocking plate (505) and the vertical rod (503).

2. A railway generator set according to claim 1, characterized in that: A mounting block (601) is vertically slidably mounted on the limit rod (504), and one end of the first spring (508) away from the vertical rod (503) is fixedly connected to the mounting block (601), the electromagnet (507) is embedded in the mounting block (601), a vertical groove is provided on the dust blocking plate (505), a second spring (602) is installed between the top wall of the vertical groove and the mounting block (601), and a memory alloy wire (603) is installed between the top wall of the vertical groove and the mounting block (601), a heat conducting rod (604) that is in contact with the generator body (3) is installed on the top wall of the vertical groove, and one end of the heat conducting rod (604) that is away from the generator body (3) is in contact with the memory alloy wire (603), and a limit block (605) for limiting the movement of the dust blocking plate (505) is fixedly mounted on the protective cover (4).

3. A railway generator set according to claim 2, characterized in that: The base (2) is provided with a vibration-damping groove (701), and the bottom plate (1) is slidably matched with the vibration-damping groove (701), a vibration-damping spring (702) is installed between the bottom wall of the bottom plate (1) and the vibration-damping groove (701), and the bottom plate (1) is provided with a locking assembly (703) that is matched with the base (2).

4. A railway generator set according to claim 3, characterized in that: The locking assembly (703) comprises a horizontal groove formed on the bottom plate (1), and one end of the limiting rod (504) away from the dust blocking plate (505) extends into the horizontal groove, a spring telescopic rod (7031) is slidably installed in the horizontal groove, a third spring (7032) is installed between the spring telescopic rod (7031) and the horizontal groove, and one end of the spring telescopic rod (7031) away from the third spring (7032) is an inclined surface, and a fixing groove (7033) cooperating with the output end of the spring telescopic rod (7031) is formed on the side wall of the vibration damping groove (701).

5. A railway generator set according to claim 4, characterized in that: One end of the spring telescopic rod (7031) close to the fixing groove (7033) is tapered.

6. A railway generator set according to claim 1, characterized in that: The filter screen (509) is slidably matched with the corresponding air inlet (501) and the air outlet (502), a shaking spring (801) is installed between the filter screen (509) and the protective cover (4), and a shaking block (802) is fixedly installed on the side wall of the filter screen (509) away from the shaking spring (801).

7. A railway generator set according to claim 6, characterized in that: An air groove (803) is provided on the top wall of the bottom plate (1), a mounting rod (804) is vertically slidably mounted in the air groove (803), a return spring (805) is installed between the mounting rod (804) and the air groove (803), a push block (806) for pushing the shaking block (802) to move is fixedly mounted on the top wall of the mounting rod (804), and one end of the push block (806) close to the shaking block (802) is an inclined surface.

8. A railway generator set according to claim 7, characterized in that: The shaking block (802) is provided with a mounting groove, and a rolling rod (807) is rotatably mounted in the mounting groove.

9. A railway generator set according to claim 2, characterized in that: The surface of the memory alloy wire (603) is covered with a heat-insulating sleeve (9).

10. A railway generator set according to claim 1, characterized in that: A cleaning plate (10) is fixedly mounted on the bottom wall of the dust blocking plate (505), and cleaning bristles (11) are evenly fixedly mounted on the side walls of the cleaning plate (10).

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