Railway generator set

Abstract

The application discloses a generator set for railway, and belongs to the technical field of generators, which comprises a bottom plate and a base, a generator body is installed on the bottom plate, a protective cover fixedly connected with the bottom plate is arranged on the generator body, and a heat dissipation assembly is arranged on the protective cover; the heat dissipation assembly comprises an air inlet and an air outlet formed in the protective cover. According to the scheme, the dustproof plate can block the filter screen after the use of the generator body is finished, so that dust and sand in the air cannot accumulate on the surface of the filter screen when the generator body stops working, the filter screen is prevented from being blocked, the heat dissipation effect of the generator body is affected, and the aging speed of the device is increased. Through the arrangement of the memory alloy wire, the dustproof plate can block the filter screen only after the heat dissipation of the generator body is finished, so that the residual heat of the generator body cannot be conducted to the outside through air flow after the generator body is turned off, the service life of the generator body is affected, and the service life of the device is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of generators, more particularly, to a generator set for railway. BACKGROUND

[0002] The principle of the generator set is that the volume of diesel oil is reduced in the generator set, and the temperature rises rapidly to reach the ignition point of diesel oil; then the diesel oil is ignited, the mixed gas burns violently, the volume expands rapidly, and the piston descends, which is called 'work'; each cylinder works in turn according to a certain order, and the thrust acting on the piston is changed into the force driving the crankshaft to rotate, thereby driving the crankshaft to rotate; according to the principle of 'electromagnetic induction', the generator will output induced electromotive force, and current can be generated through the closed load loop.

[0003] Since the railway is built in a relatively remote place and the power facilities are relatively lacking, the generator set is often needed for power supply. When the generator is started, the heat generated by the generator needs to be discharged, so a ventilation opening is provided at the tail of the generator to improve the ventilation condition inside the generator and reduce the local overheating phenomenon caused by poor air circulation, thereby further protecting the various components of the generator. However, since the environment of the railway construction site is relatively harsh, there is a lot of dust and sand, and during the operation of the generator, the dust and sand particles that may exist in the surrounding environment of the generator may enter the inside of the generator through the ventilation opening. The accumulation of these dusts may affect the performance of the generator set.

[0004] In view of the above problems, some solutions are also given in the prior art, such as the gasoline generator disclosed in Chinese Patent No. CN119076219B. The device is cooperated with the first conductive rod through the conductive frame, when the dust passes through the conductive frame, the surface of the dust will be attached to the electric charge released by the conductive frame, and because the conductive frame and the first conductive rod carry the same kind of electric charge, the principle of repulsion between the same kind of electric charges is used, so that the dust will be repelled when it reaches the first conductive rod, thereby isolating the dust and preventing it from continuing to enter the generator through the ventilation pipe and accumulating, thereby affecting the performance of the generator. The service life of the device is effectively improved. Although the prior art can prevent dust from entering the inside of the generator during use and affecting the service life of the device, when the device 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. Since the environment of the railway construction is relatively harsh, there is a lot of dust and sand in the air, and after the conductive frame and the first conductive rod are powered off, the dust is easy to enter the inside of the generator and affect the service life of the device. SUMMARY

[0005] In view of the problems existing in the prior art, the purpose of the present application is to provide a generator set for railway, which can prolong the service life of the device.

[0006] To solve the above problems, the application adopts the following technical scheme.

[0007] A railway generator set, comprising a bottom plate and a base, a generator body is installed on the bottom plate, a protective cover fixedly connected with the bottom plate is arranged on the generator body, and a heat dissipation assembly is arranged on the protective cover.

[0008] The heat dissipation assembly comprises an air inlet and an air outlet formed on the protective cover, a filter screen is arranged in 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 and slidingly installed on the vertical rod, a dust blocking plate for blocking the air inlet and the air outlet is arranged on the limiting rod, one end of the limiting rod away from the vertical rod is fixedly connected with the dust blocking plate, a magnet block is embedded on the dust blocking plate, an electromagnet electrically connected with the generator body is arranged on the bottom plate, and a first spring is jointly installed between the bottom wall of the dust blocking plate and the vertical rod.

[0009] Further, an installation block is vertically and slidingly installed on the limiting rod, one end of the first spring away from the vertical rod is fixedly connected with the installation block, the electromagnet is embedded in the installation block, a vertical slot is formed on the dust blocking plate, a second spring is jointly installed between the top wall of the vertical slot and the installation block, a memory alloy wire is jointly installed between the top wall of the vertical slot and the installation block, a heat conduction rod matched with the generator body is installed on the top wall of the vertical slot, one end of the heat conduction rod away from the generator body is matched with the memory alloy wire, and a limiting block for limiting the movement of the dust blocking plate is fixedly installed on the protective cover.

[0010] Further, a damping groove is formed on the base, the bottom plate is slidingly matched with the damping groove, a damping spring is jointly installed between the bottom wall of the bottom plate and the damping groove, and a locking assembly matched with the base is arranged on the bottom plate.

[0011] Further, the locking assembly comprises a horizontal slot formed on the bottom plate, one end of the limiting rod away from the dust blocking plate extends into the horizontal slot, a spring telescopic rod is slidingly installed in the horizontal slot, a third spring is jointly installed between the spring telescopic rod and the horizontal slot, one end of the spring telescopic rod away from the third spring is a bevel, and a fixing groove matched with the output end of the spring telescopic rod is formed on the side wall of the damping groove.

[0012] Further, one end of the spring telescopic rod close to the fixing groove is conical.

[0013] Further, the filter screens are slidingly matched with the corresponding air inlets and air outlets respectively, a shaking spring is jointly installed between the filter screens and the protective cover, and a shaking block is fixedly installed on the side wall of the filter screen away from the shaking spring.

[0014] Further, a gas groove is formed on the top wall of the bottom plate, an installation rod is vertically and slidingly installed in the gas groove, a return spring is jointly installed between the installation rod and the gas groove, a push block for pushing the shaking block to move is fixedly installed on the top wall of the installation rod, and an end of the push block close to the shaking block is a slope.

[0015] Further, an installation groove is formed on the shaking block, and a rolling rod is rotatably installed in the installation groove.

[0016] Further, a heat preservation sleeve is sleeved on the surface of the memory alloy wire.

[0017] Further, a cleaning plate is fixedly installed on the bottom wall of the dust blocking plate, and cleaning hairs are uniformly fixedly installed on the side wall of the cleaning plate.

[0018] Compared with the prior art, the present application has the following advantages:

[0019] (1) The dust blocking plate can block the filter screen after the use of the generator body is finished, so that the dust and sand in the air cannot accumulate on the surface of the filter screen to block the filter screen when the generator body stops working, the heat dissipation effect of the generator body is affected, and the aging speed of the device is accelerated, and the memory alloy wire is arranged, so that the dust blocking plate blocks the filter screen only after the heat dissipation of the generator body is finished, so that the residual heat of the generator body cannot be conducted to the outside through the air flow after the generator body is turned off, the service life of the generator body is affected, and the service life of the device is improved.

[0020] (2) The damping spring is arranged, so that the vibration of the generator body is transmitted to the damping spring through the bottom plate during the shaking of the generator body, the damping spring can perform damping treatment on the generator body at this time, the dust blocking plate is inserted into the fixed groove through the extension rod output end when the dust blocking plate blocks the filter screen, so that the bottom plate is fixed, the damping spring is prevented from being in a stressed state for a long time, the service life of the damping spring is affected, and the service life of the device is further improved.

[0021] (3) The shaking spring is arranged, so that the air flow in the damping groove is extruded and flows into the gas groove during the downward movement and compression of the bottom plate on the damping spring, the installation rod drives the push block to move upward under the action of the air flow, the filter screen can swing back and forth during the upward movement of the push block, part of the stains on the surface of the filter screen are shaken off, the stains on the surface of the filter screen are loosened, the impurities on the surface of the filter screen are cleaned, so that the air flow can normally pass through the filter screen, and the heat dissipation effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The figure is a structural schematic diagram of the present application.

[0023] Figure 2 Sectional view of the dust prevention plate, mounting block and vertical rod of the present application;

[0024] Figure 3 Sectional view of the protective cover, bottom plate and base of the present application;

[0025] Figure 4 Sectional view of the protective cover, bottom plate and base of the present application; Figure 3 Enlarged view of A in the present application;

[0026] Figure 5 Sectional view of the protective cover, bottom plate and base of the present application; Figure 3 Enlarged view of B in the present application;

[0027] Figure 6 Combined view of the base, bottom plate, spring telescopic rod and limiting rod of the present application;

[0028] Figure 7 Combined view of the cleaning plate, cleaning hair and dust prevention plate of the present application;

[0029] Figure 8 Structure schematic view of the spring telescopic rod of the present application.

[0030] Explanation of the reference numerals in the drawings:

[0031] 1, bottom plate; 2, base; 3, generator body; 4, protective cover;

[0032] 5, heat dissipation assembly; 501, air inlet; 502, air outlet; 503, vertical rod; 504, limiting rod; 505, dust prevention plate; 506, magnet block; 507, electromagnet; 508, first spring; 509, filter screen;

[0033] 601, mounting block; 602, second spring; 603, memory alloy wire; 604, heat conduction rod; 605, limiting block;

[0034] 701, damping groove; 702, damping spring; 703, locking assembly; 7031, spring telescopic rod; 7032, third spring; 7033, fixing groove;

[0035] 801, shaking spring; 802, shaking block; 803, air groove; 804, mounting rod; 805, return spring; 806, push block; 807, rolling rod;

[0036] 9, heat preservation sleeve; 10, cleaning plate; 11, cleaning hair. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application, and all other embodiments obtained by a person of ordinary skill in the art without creative effort on the basis of the embodiments of the present application shall fall within the scope of the present application.

[0038] Please refer to Figures 1 to 8 A railway generator set, comprising a bottom plate 1 and a base 2, the bottom plate 1 is provided with a generator body 3, the generator body 3 is provided with a protective cover 4 fixedly connected with the bottom plate 1, and the protective cover 4 is provided with a heat dissipation assembly 5.

[0039] The heat dissipation assembly 5 comprises an air inlet 501 and an air outlet 502 formed in the protective cover 4, the air inlet 501 and the air outlet 502 are both provided with a filter screen 509, the top wall of the bottom plate 1 is symmetrically provided with a vertical rod 503, the vertical rod 503 is vertically slidably provided with a limiting rod 504, the limiting rod 504 is provided with a dust blocking plate 505 for blocking the air inlet 501 and the air outlet 502, one end of the limiting rod 504 away from the vertical rod 503 is fixedly connected with the dust blocking plate 505, the dust blocking plate 505 is embedded with a magnet block 506, the bottom plate 1 is provided with an electromagnet 507 electrically connected with the generator body 3, and the first spring 508 is installed between the bottom wall of the dust blocking plate 505 and the vertical rod 503.

[0040] The limiting rod 504 is vertically slidably provided with a mounting block 601, one end of the first spring 508 away from the vertical rod 503 is fixedly connected with the mounting block 601, the electromagnet 507 is embedded in the mounting block 601, the dust blocking plate 505 is provided with a vertical slot, the second spring 602 is installed between the top wall of the vertical slot and the mounting block 601, the memory alloy wire 603 is installed between the top wall of the vertical slot and the mounting block 601, the heat conduction rod 604 is installed on the top wall of the vertical slot and is in contact with the generator body 3, one end of the heat conduction rod 604 away from the generator body 3 is in contact with the memory alloy wire 603, and the limiting block 605 for limiting the movement of the dust blocking plate 505 is fixedly installed on the protective cover 4.

[0041] When the generator body 3 works, the electromagnet 507 is powered, then the magnet block 506 drives the mounting block 601 to move upwards under the action of the magnetic field of the electromagnet 507, and stretches the first spring 508, and drives the dustproof plate 505 to move upwards in the process of the mounting block 601 moving upwards, and is out of contact with the filter screen 509, at this time the radiator in 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 air outlet 502, so as to achieve the purpose of heat dissipation, 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 dustproof plate 505 to move downwards through the mounting block 601, so as to block the filter screen 509, avoid the dust and sand in the air from accumulating on the surface of the filter screen 509 when the generator body 3 stops working, so as to block the filter screen 509, affect the heat dissipation effect of the generator body 3, and cause the device to age faster, so as to improve the service life of the device.

[0042] In the process that the magnet block 506 drives the dustproof plate 505 to move upwards through the mounting block 601, the dustproof plate 505 gradually contacts the limiting block 605, and the dustproof plate 505 cannot continue to move upwards under the action of the limiting block 605, and as the temperature of the generator body 3 rises, the generator body 3 transmits the temperature to the memory alloy wire 603 through the heat conduction rod 604, and makes the memory alloy wire 603 stretch, at this time the second spring 602 has a stretching tendency, when the generator body 3 stops working, the second spring 602 stretches and makes the dustproof plate 505 always fit with the limiting block 605 as the mounting block 601 moves downwards driven by the first spring 508, then the airflow in the protective cover 4 can flow with the outside, and when the temperature of the generator body 3 returns to normal, the memory alloy wire 603 returns to normal temperature and contracts, and drives the dustproof plate 505 to move downwards in the process of the memory alloy wire 603 contracting, at this time the second spring 602 is compressed and has a stretching tendency, that is, through the cooperation of the memory alloy wire 603 and the second spring 602, the dustproof plate 505 will block the filter screen 509 only after the heat dissipation of the generator body 3 is completed, so as to avoid that the residual heat of the generator body 3 cannot be conducted to the outside through the airflow after the generator body 3 is turned off, affect the service life of the generator body 3, and further improve the service life of the device.

[0043] As shown in Figure 2 , Figure 6 , Figure 8 , the base 2 is provided with a damping groove 701, and the bottom plate 1 is in sliding cooperation with the damping groove 701, and the damping spring 702 is jointly installed between the bottom wall of the bottom plate 1 and the damping groove 701, and the bottom plate 1 is provided with a locking assembly 703 cooperating with the base 2.

[0044] The locking assembly 703 comprises a horizontal slot formed on the bottom plate 1, and the limiting rod 504 extends to the horizontal slot from the end away from the dustproof plate 505, the spring telescopic rod 7031 is slidingly installed in the horizontal slot, the third spring 7032 is jointly installed between the spring telescopic rod 7031 and the horizontal slot, and the end of the spring telescopic rod 7031 away from the third spring 7032 is a bevel, and the side wall of the damping groove 701 is provided with a fixing groove 7033 matched with the output end of the spring telescopic rod 7031.

[0045] The end of the spring telescopic rod 7031 close to the fixing groove 7033 is tapered.

[0046] By adopting the above technical scheme, during the starting and high-load operation of the generator body 3, the generator body 3 will vibrate violently, and if the vibration is not damped in time, the service life of the generator body 3 will be affected. During the vibration of the generator body 3, the vibration of the generator body 3 is transmitted to the damping spring 702 through the bottom plate 1, and at this time the damping spring 702 can damp the vibration of the generator body 3, thereby further improving the service life of the device.

[0047] During the upward movement of the dustproof plate 505 driven by the magnet block 506 through the mounting block 601, the limiting rod 504 is driven by the dustproof plate 505 to move upward, and gradually separates from the bevel of the spring telescopic rod 7031 during the upward movement of the limiting rod 504. At this time, the third spring 7032 is stretched and drives the spring telescopic rod 7031 to separate from the fixing groove 7033, and at this time the bottom plate 1 can normally slide in the damping groove 701. Then during the downward movement of the dustproof plate 505 and the blocking of the filter screen 509, the limiting rod 504 is driven by the dustproof plate 505 to move downward, and gradually contacts the bevel of the spring telescopic rod 7031 during the downward movement of the limiting rod 504, and exerts a pushing force on the bevel of the spring telescopic rod 7031. Then under the action of the pushing force, the spring telescopic rod 7031 moves along the horizontal slot, and when the output end of the spring telescopic rod 7031 is not in contact with the fixing groove 7033, the output end of the spring telescopic rod 7031 is compressed and has a tendency to stretch as the spring telescopic rod 7031 moves. Then when the bottom plate 1 vibrates, it drives the spring telescopic rod 7031 to vibrate, and when the damping spring 702 is in a free stretching 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 is stretched and inserted into the fixing groove 7033, so as to fix the bottom plate 1, thereby avoiding the damping spring 702 being in a stressed state for a long time, affecting the service life of the damping spring 702, and further improving the service life of the device.

[0048] During the process of inserting the output end of the spring telescopic rod 7031 into the fixing groove 7033, the end of the spring telescopic rod 7031 near the fixing groove 7033 is made into an inclined surface, which facilitates the insertion of the output end of the spring telescopic rod 7031 into the fixing groove 7033.

[0049] like Figure 3 , Figure 4 , Figure 5 As shown, the filter screen 509 is slidably engaged with the corresponding air inlet 501 and exhaust outlet 502 respectively. A vibration spring 801 is installed between the filter screen 509 and the protective cover 4. A vibration block 802 is fixedly installed on the side wall of the filter screen 509 away from the vibration spring 801.

[0050] An air groove 803 is provided on the top wall of the base plate 1. An installation rod 804 is vertically 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. The end of the push block 806 near the shaking block 802 is an inclined surface.

[0051] The vibrating block 802 has an installation groove, and a roller 807 is rotatably installed in the installation groove.

[0052] By adopting the above technical solution, during the process of the base plate 1 moving downward and compressing the damping spring 702, the airflow 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 reset spring 805. During the process of the mounting rod 804 moving upward, 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. 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. Then, when the damping... When the spring 702 moves the base plate 1 upward, the damping groove 701 draws air from the air groove 803, restoring the pressure in the air groove 803 to normal. At this time, the reset spring 805 contracts and drives the mounting rod 804 to reset. During the reset process of the mounting rod 804, the push block 806 pushes 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. During the back-and-forth swing of the filter screen 509, the impurities on the surface of the filter screen 509 can be shaken off, and some of the dirt on the surface of the filter screen 509 can be shaken off. At the same time, the dirt on the surface of the filter screen 509 can be loosened, making it easier to clean the impurities on the surface of the filter screen 509 later. This ensures that the airflow can pass through the filter screen 509 normally, thereby improving the heat dissipation effect.

[0053] During the process of the push block 806 driving the shaking block 802 to move, the sliding friction between the push block 806 and the shaking block 802 can be converted into rolling friction between the roller 807 and the shaking block 802 by setting the roller 807, thereby reducing the wear of the push block 806 and the shaking block 802, and also reducing the friction between the push block 806 and the shaking block 802, thus ensuring that the push block 806 can drive the shaking block 802 to move normally.

[0054] like Figure 2 As shown, the surface of the shape memory alloy wire 603 is covered with a heat insulation sleeve 9.

[0055] By adopting the above technical solution and setting the insulation sleeve 9, it can be ensured that the heat conduction 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 react according to the temperature change of the generator body 3.

[0056] like Figure 7 As shown, a cleaning plate 10 is fixedly installed on the bottom wall of the dust blocking plate 505, and cleaning bristles 11 are evenly fixedly installed on the side wall of the cleaning plate 10.

[0057] By adopting the above technical solution, the cleaning plate 10 is moved during the movement of the dust blocking plate 505, and the cleaning bristles 11 can clean the dirt on the surface of the filter screen 509 during the movement of the cleaning plate 10, thereby ensuring that the airflow can pass through the filter screen 509 normally and thus improving the heat dissipation effect.

[0058] Instructions for use: When the generator body 3 stops working, the electromagnet 507 is de-energized and the magnetic field disappears. Then, the first spring 508 contracts and moves the dust-blocking plate 505 downwards via the mounting block 601, thereby sealing the filter screen 509. After the generator body 3 stops working, as the first spring 508 moves the mounting block 601 downwards, the second spring 602 extends, ensuring that the dust-blocking plate 505 remains in contact with the limiting block 605. This allows airflow within the protective cover 4 to circulate with the outside. When the generator body 3 returns to normal temperature, the shape memory alloy wire 603 returns to normal temperature and contracts. During the contraction of the shape memory alloy wire 603, it moves the dust-blocking plate 505 downwards. At this time, the second spring 602 extends... 2. The filter screen 509 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, the dust blocking plate 505 will only block the filter screen 509 after the generator body 3 has finished dissipating heat; during the vibration of the generator body 3, the generator body 3 transmits the vibration to the damping spring 702 through the base plate 1, at which time the damping spring 702 can dampen the vibration of the generator body 3; under the action of thrust, the spring telescopic rod 7031 moves along the horizontal groove, and when the output end of the spring telescopic rod 7031 is not in contact with 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, and then when the base plate 1 vibrates, it will... The spring telescopic rod 7031 vibrates, and when the damping spring 702 is in a freely 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 base plate 1 and preventing the damping spring 702 from being under stress for a long time, which would affect the service life of the damping spring 702. During the process of the base plate 1 moving downward and compressing the damping spring 702, the airflow 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 reset spring 805. During the upward movement, the inclined surface of the push block 806 gradually comes into contact with 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. As the mounting rod 804 drives the push block 806 to move upward, the push block 806 gradually disengages from the shaking block 802. After the push block 806 disengages from the shaking block 802, the shaking spring 801 drives the filter screen 509 to swing and reset. During the back-and-forth swinging of the filter screen 509, the impurities on the surface of the filter screen 509 can be shaken off, and some of the dirt on the surface of the filter screen 509 can be shaken off. At the same time, the dirt on the surface of the filter screen 509 can be loosened, making it easier to clean the impurities on the surface of the filter screen 509 later.

[0059] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A railway generator set, comprising a base plate (1) and a base (2), a generator body (3) is installed on the base plate (1), the generator body (3) is provided with a protective cover (4) fixedly connected with the base plate (1), and a heat dissipation assembly (5) is arranged on the protective cover (4); characterized in that The heat dissipation assembly (5) comprises an air inlet (501) and an air outlet (502) formed in the protective cover (4), the air inlet (501) and the air outlet (502) are provided with filter screens (509) respectively, vertical rods (503) are symmetrically installed on the top wall of the base plate (1), limit rods (504) are vertically and slidably installed on the vertical rods (503), dust blocking plates (505) for blocking the air inlet (501) and the air outlet (502) are arranged on the limit rods (504), one end of the limit rod (504) away from the vertical rod (503) is fixedly connected with the dust blocking plate (505), magnet blocks (506) are embedded on the dust blocking plate (505), electromagnets (507) electrically connected with the generator body (3) are arranged on the base plate (1), and first springs (508) are arranged between the bottom wall of the dust blocking plate (505) and the vertical rod (503); The limit rod (504) is vertically and slidably installed with a mounting block (601), one end of the first spring (508) away from the vertical rod (503) is fixedly connected with the mounting block (601), the electromagnet (507) is embedded in the mounting block (601), a vertical slot is formed in the dust blocking plate (505), a second spring (602) is arranged between the top wall of the vertical slot and the mounting block (601), a memory alloy wire (603) is arranged between the top wall of the vertical slot and the mounting block (601), a heat conducting rod (604) abutting the generator body (3) is arranged on the top wall of the vertical slot, one end of the heat conducting rod (604) away from the generator body (3) abuts 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); The filter screens (509) are slidably connected with the corresponding air inlets (501) and air outlets (502) respectively, and a shaking spring (801) is arranged 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); A gas groove (803) is formed in the top wall of the base plate (1), an installation rod (804) is vertically and slidably installed in the gas groove (803), a reset spring (805) is arranged between the installation rod (804) and the gas 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 beveled.

2. A railway generator set according to claim 1, characterised in that: The base (2) is provided with a damping groove (701), and the bottom plate (1) is in sliding fit with the damping groove (701), damping springs (702) are arranged between the bottom wall of the bottom plate (1) and the damping groove (701), and the bottom plate (1) is provided with a locking assembly (703) matched with the base (2).

3. A railway generator set as claimed in claim 2, characterised in that: The locking assembly (703) comprises a horizontal groove formed in the bottom plate (1), and the end, away from the dustproof plate (505), of the limiting rod (504) extends into the horizontal groove; a spring telescopic rod (7031) is slidably arranged in the horizontal groove; a third spring (7032) is arranged between the spring telescopic rod (7031) and the horizontal groove; the end, away from the third spring (7032), of the spring telescopic rod (7031) is a bevel; and a fixing groove (7033) matched with the output end of the spring telescopic rod (7031) is formed in the side wall of the damping groove (701).

4. A railway generator set as claimed in claim 3, characterised in that: The end, close to the fixing groove (7033), of the spring telescopic rod (7031) is conical.

5. A railway generator set as claimed in claim 4, characterised in that: The shaking block (802) is provided with an installation groove, and a rolling rod (807) is rotatably arranged in the installation groove.

6. A railway generator set according to claim 1, characterized in that: The surface of the memory alloy wire (603) is provided with a heat preservation sleeve (9).

7. A railway generator set as claimed in claim 1, characterized in that: The bottom wall of the dustproof plate (505) is fixedly provided with a cleaning plate (10), and the side wall of the cleaning plate (10) is uniformly fixedly provided with cleaning hairs (11).

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