An electric search light suitable for ship vibration environment

Abstract

The present invention discloses an electric search light suitable for a ship's vibration environment, comprising a shell, a base and a light-emitting module; the base is installed below the shell, and an upper and lower transmission component and a horizontal transmission component are installed in the shell; the light-emitting module is installed on the upper and lower transmission components, and the light-emitting angle of the search light is adjusted in the vertical direction by the self-rotation of the upper and lower transmission components; the horizontal transmission component adjusts the light-emitting angle of the search light in the horizontal direction by self-rotation, and fixes the shell and the base together. The electric search light suitable for a ship's vibration environment provided by the present invention can absorb most of the external force impact, protect the service life of the motor, so that the lamp can be used for a long time in a vibration state, and can still maintain a stable light output angle.

Description

Technical Field

[0001] The invention relates to an electric search light, in particular to an electric search light suitable for a ship vibration environment. Background Art

[0002] Shock refers to repeated low-intensity impact excitation within a certain time interval. Shock caused by wave impact has a particularly significant impact on ships (especially speedboats). Shock, like impact and vibration, is one of the actual operating environment conditions of ships. From the test of actual ships in sea conditions of level 3-4, the acceleration of shock when the ship is sailing is much greater than its vibration acceleration, but the action time is short and the action period is long. The acceleration value of shock in some parts can reach 12g (120m / s²). The main direction of shock is along the vertical direction of the ship deck.

[0003] The biggest problem for searchlights is the impact on the transmission structure, especially for motor reducers with high precision requirements. Once the external impact exceeds the maximum allowable torque of the reducer, it will cause irreversible damage to the equipment. Dynamic stiffness refers to the ability of a structure to resist deformation under specific dynamic excitation. Dynamic stiffness is measured by the natural frequency of the structure; when the frequency of the action force is close to the natural frequency of the structure, resonance may occur, at which time the dynamic stiffness is minimum and the deformation is maximum. At the resonance point, the amplitude of the curve is very large, indicating that the amplification factor between the response and the excitation is very large, or the dynamic stiffness is very small. In this way, even if a small excitation energy is applied to the structure, the structure will produce very large vibrations. Therefore, at the resonance point, the structure is easily excited.

[0004] In order to achieve the pitch angle adjustment, the existing small searchlight usually has an upper and lower transmission structure: the motor is installed on the stationary main bracket, and the lamp head component that needs to move is fixed on the main bracket by means of a gear set, a pulley, etc. (that is, the motor and the main bracket are stationary, and the light module moves). For example, the searchlight disclosed in the patent document with application number 201920406806.9, its light module is fixed on the lamp head bracket through the third connecting shaft, the motor is fixed on the lamp head bracket through the first connecting shaft, and then the motor and the lamp head component are connected through the bevel gear and worm gear structure. The upper and lower transmission principle is: the motor rotates to drive the first connecting shaft, the first connecting shaft drives the bevel gear, the bevel gear drives the worm gear, the worm gear drives the third connecting shaft, and the third connecting shaft drives the lamp head component to rotate. The biggest disadvantage of this upper and lower transmission structure is that the transmission chain is too long, and the first connecting shaft and the third connecting shaft are only fixed at one end. Due to the heavy light module, coupled with the lever amplification effect brought about by the single-end fixation, all the forces will be concentrated on the meshing of the turbine and the worm, and the meshing of the worm and the bevel gear. At this time, if the lamp is subjected to external impact, the impact force will be amplified by its own structure, and the impact force will directly act on the worm gear and bevel gear, which may cause jamming or slipping.

[0005] The searchlight lamp holder is installed on the connecting seat, which passes through the oil seal and tapered roller bearing and is fixed to the seat body by a clamping nut. The motor is installed in the seat body and connected to the connecting seat through a bevel gear, a worm gear and a worm gear. The horizontal transmission principle is: the motor rotates to drive the bevel gear, the bevel gear drives the worm gear, the worm gear drives the connecting seat, and the connecting seat drives the lamp holder to rotate. The biggest disadvantage of this horizontal transmission structure is that the sinking design of the seat body makes the contact surface between the connecting seat and the seat body only have the thickness of the tapered roller bearing, and it is close to one end of the motor, which is top-heavy. In this way, the weight of the entire lamp holder is magnified by the lever effect, and all the force will be concentrated on the meshing point of the turbine and the worm, and the meshing point of the worm and the bevel gear. At this time, if the lamp is subjected to external impact, the impact force will be amplified by its own structure, and the impact force will directly act on the worm gear and the bevel gear, which is prone to jamming or slipping. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide an electric search light suitable for the ship's vibration environment, which can absorb most of the external force impact and protect the service life of the motor, so that the lamp can be used for a long time in a vibration state and still maintain a stable light output angle.

[0007] The technical solution adopted by the present invention to solve the above-mentioned technical problems is to provide an electric search light suitable for the vibration environment of a ship, comprising a shell, a base and a light-emitting module; the base is installed below the shell, and the shell is equipped with an upper and lower transmission component and a horizontal transmission component; the light-emitting module is installed on the upper and lower transmission components, and the light-emitting angle of the search light is adjusted in the vertical direction by the rotation of the upper and lower transmission components; the horizontal transmission component adjusts the light-emitting angle of the search light in the horizontal direction by rotating, and fixes the shell and the base together.

[0008] Furthermore, the upper and lower transmission components include a first motor, a first upper and lower transmission shaft, a second upper and lower transmission shaft and a second transmission bracket. The rotation centers of the first upper and lower transmission shaft and the second upper and lower transmission shaft coincide with each other. Limit switches are fixedly arranged on both sides of the second transmission bracket. Limit screws are fixedly arranged on the second upper and lower transmission shaft. When the first motor rotates and drives the limit switch to rotate and hit the limit screw, the limit switch is turned on and transmits a signal to the first motor to stop rotating.

[0009] Furthermore, the output shaft of the first motor is a first motor output shaft, and the first motor output shaft is embedded and installed on the first transmission bracket through a first deep groove ball bearing and a first sleeve; one end of the first upper and lower transmission shaft is fixed to the first transmission bracket through a first deep groove ball bearing, and the other end is fixed to the housing through a screw; one end of the second upper and lower transmission shaft is fixed to the second transmission bracket through a first deep groove ball bearing, and the other end is fixed to the housing through a screw.

[0010] Furthermore, the first transmission bracket is a CNC one-piece molded bracket.

[0011] Furthermore, upper and lower gears are installed on the first upper and lower transmission shafts, a first pinion is arranged between the first motor output shaft and the first transmission bracket, one end of the first pinion is fixed to the first motor output shaft, and the other end of the first pinion is fixed to the first transmission bracket through a first positioning shaft and a first deep groove ball bearing, and the center distance between the first pinion and the upper and lower gears is the sum of the pitch circle radii of the two.

[0012] Furthermore, the upper and lower gears and the first pinion are all spur gears, and the module is greater than 1; the upper and lower transmission components have an adjustment range of ±20° in the vertical direction.

[0013] Furthermore, the horizontal transmission component includes a second motor, a horizontal gear and a conductive slip ring; the horizontal gear is fixed on the horizontal transmission shaft and meshes with the second pinion, and the center distance between the two is the sum of their pitch circle radii; the conductive slip ring is installed on the horizontal transmission shaft, and the horizontal transmission shaft passes through the first thrust ball bearing, the horizontal transmission seat, the shell, the second thrust ball bearing and is connected to the base.

[0014] Furthermore, the second motor is fixed on the horizontal transmission seat through a motor fixing seat, the output shaft of the second motor is a second motor output shaft, the bottom of the second motor output shaft is positioned and installed on the motor fixing seat through a second deep groove ball bearing and a second sleeve, one end of the second pinion is sleeved on the second motor output shaft, and the other end is connected to the second positioning shaft, and the second positioning shaft is positioned and installed on the horizontal transmission seat through a second deep groove ball bearing.

[0015] Furthermore, the horizontal transmission shaft and the base are tightly connected and fastened by screws.

[0016] Furthermore, the light-emitting module includes a light source board, a lens, a lens pressure plate and a heat sink, the light source board is installed on the heat sink, the lens is above the light source board and fixed to the heat sink through the lens pressure plate; the first motor is installed behind the radiator, and the upper and lower transmission shafts are located at the front side of the radiator.

[0017] Compared with the prior art, the present invention has the following beneficial effects: the electric searchlight suitable for the ship's vibration environment provided by the present invention can absorb most of the external force impact, protect the service life of the motor, so that the lamp can be used for a long time in the vibration state, and can still maintain a stable light output angle, so that the lamp head will not fall off or shake up and down during use. At the same time, the lamp of the present invention has an adjustment range of ±20° in the vertical direction and can rotate unlimitedly in the horizontal direction, which is very suitable for use on ships that are in a vibration environment for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1a The cross-sectional structure diagram of the electric search light of the present invention is suitable for the vibration environment of the ship;

[0019] Figure 1b This is a schematic diagram of the explosion structure of the electric search light suitable for the ship's vibration environment of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the upper and lower transmission components and the light-emitting module of the electric search light of the present invention;

[0021] Figure 3a It is a schematic cross-sectional structure diagram of the upper and lower transmission components and the light-emitting module of the electric search light of the present invention;

[0022] Figure 3b It is a schematic diagram of the exploded structure of the upper and lower transmission components of the electric search light of the present invention;

[0023] Figure 4 It is a side structural schematic diagram of the upper and lower transmission components of the electric search light of the present invention and the second transmission bracket side of the light emitting module;

[0024] Figure 5 It is a schematic diagram of the force impact of the upper and lower transmission components of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the horizontal transmission component of the electric search light of the present invention;

[0026] Figure 7 It is a schematic diagram of the side structure of the horizontal transmission component of the electric search light of the present invention;

[0027] Figure 8 For along Figure 7 Schematic diagram of the cross-section structure along the AA line;

[0028] Fig. 9 For along Figure 7 Schematic diagram of the cross-sectional structure along the middle BB line;

[0029] Fig.10 It is a schematic diagram of the force impact of the horizontal transmission component of the present invention;

[0030] Fig.11a This is a schematic diagram of the state of the electric search light of the present invention when it is adjusted upward by 20°;

[0031] Fig.11b This is a schematic diagram of the state of the electric search light of the present invention when it is adjusted downward by 20°;

[0032] Fig.12a It is a horizontal sweep frequency vibration curve diagram of the existing electric search light along the light-emitting surface of the lamp;

[0033] Figure 12b This is a vibration curve diagram of the electric search light of the present invention when the frequency is swept horizontally left and right along the light-emitting surface of the lamp;

[0034] Fig.13a It is a longitudinal frequency sweep vibration curve diagram of the existing electric search light along the front and back light-emitting surface of the lamp;

[0035] Fig.13b It is a longitudinal frequency sweep vibration curve diagram of the electric search light of the present invention along the front and back light-emitting surface of the lamp;

[0036] Fig.14a It is a frequency sweep vibration curve diagram of the existing electric search light in the vertical direction up and down the light-emitting surface of the lamp;

[0037] Fig.14b This is a frequency sweep vibration curve diagram of the electric search light of the present invention along the vertical direction of the light emitting surface of the lamp.

[0038] The markings in the figure are:

[0039] 1. Front cover; 2. Tempered glass; 3. Shell; 4. Base; 5. Upper and lower transmission parts; 6. Horizontal transmission parts; 7. Fan; 8. Motor control board; 9. Light-emitting module; 10. Light; 11. First support point; 12. Second support point; 13. First force point; 14. Third support point; 15. Second force point; 16. Screw; 501. First transmission bracket; 502. First deep groove ball bearing; 503. First motor; 504. Upper and lower gears; 505. First upper and lower transmission shaft; 506. Limit switch; 507. First positioning shaft; 508. First pinion; 509. First bushing; 510. Limit screw; 511, first motor output shaft; 512, second transmission bracket; 513, second upper and lower transmission shaft; 514, reduction gear box; 601, horizontal transmission seat; 602, second deep groove ball bearing; 603, second motor; 604, horizontal gear; 605, horizontal transmission shaft; 606, conductive slip ring; 607, second positioning shaft; 608, second pinion; 609, second bushing; 610, motor fixing seat; 611, second motor output shaft; 612, junction plate; 613, first thrust ball bearing; 614, second thrust ball bearing; 901, light source board; 902, lens; 903, lens pressure plate; 904, radiator. DETAILED DESCRIPTION

[0040] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0041] Figure 1a The cross-sectional structure diagram of the electric search light of the present invention is suitable for the vibration environment of the ship; Figure 1b The diagram is a schematic diagram of the explosion structure of the electric search light suitable for the ship's vibration environment according to the present invention.

[0042] See also Figure 1a and Figure 1b The electric search light suitable for the ship vibration environment provided by the present invention includes a front cover 1, a tempered glass 2, a shell 3, a base 4, an upper and lower transmission component 5, a horizontal transmission component 6, a fan 7, a motor control board 8 and a light-emitting module 9; the tempered glass 2 is installed on the front cover 1, the front cover 1 is installed on the shell 3, the base 4 is installed below the shell 3, the upper and lower transmission components 5, the horizontal transmission component 6 and the fan 7 are installed inside the shell 3, and the motor control board 8 is installed inside the base 4; the light-emitting module 9 is arranged on the upper and lower transmission components 5, the light-emitting module 9 is responsible for converting electrical energy into light energy and emitting light, the upper and lower transmission components 5 are responsible for adjusting the light-emitting angle of the lamp in the vertical direction; the horizontal transmission component 6 is responsible for adjusting the light-emitting angle of the lamp in the horizontal direction, and fixing the shell 3 and the base 4 together.

[0043] The light emitting module 9 includes a light source board 901 , a lens 902 , a lens pressing plate 903 and a heat sink 904 . The light source board 901 is mounted on the heat sink 904 , and the lens 902 is located above the light source board 901 and fixed to the heat sink 904 through the lens pressing plate 903 .

[0044] All movable parts of the upper and lower transmission components 5 of the present invention, including the driving shaft (motor, pinion), the driven shaft (first transmission shaft, upper and lower gears) are installed on the same high-strength first transmission bracket 501, and the rotation center distance between the driving shaft and the driven shaft is as small as possible. The advantage of this is that the assembly accuracy is high, and even if it is impacted by external force, it is not easy to deform, causing the gears to get stuck or slip. After the upper and lower transmission components 5 are assembled, they are fixed in the grooves on the housing 3 through the upper and lower transmission shafts, and then fastened with screws.

[0045] Please continue to see Figure 2 , Figure 3a and Figure 3b The first motor 503 is mounted on the first transmission bracket 501, the first motor output shaft 511 is sleeved with a first deep groove ball bearing 502 at the bottom, the first deep groove ball bearing 502 is sleeved with a first shaft sleeve 509 on the outside, and the first shaft sleeve 509 is embedded in the first transmission bracket 501 to ensure accurate installation and positioning of the motor.

[0046] One end of the first up-down transmission shaft 505 is fixed to the first transmission bracket 501 through the first deep groove ball bearing 502, and the other end is fixed to the housing 3 through screws; the upper and lower gears 504 are fixed to the first up-down transmission shaft 505, and one end of the first pinion 508 is fixed to the first motor output shaft 511, and the center distance between the two is the sum of the pitch circle radii; the other end of the first pinion 508 is fixed to the first transmission bracket 501 through the first positioning shaft 507 and the first deep groove ball bearing 502. The first transmission bracket 501 is CNC (Computer Numerical Control) integrally formed to ensure its positioning accuracy.

[0047] One end of the second up-and-down transmission shaft 513 is fixed to the second transmission bracket 512 through the first deep groove ball bearing 502, and the other end is fixed to the housing 3 through screws; the first transmission bracket 501 and the second transmission bracket 512 are fixed to the radiator 904, and the rotation centers of the first up-and-down transmission shaft 505 and the second up-and-down transmission shaft 513 coincide, ensuring that there is no jamming when the lamp rotates up and down.

[0048] The limit switch 506 is fixed on both sides of the second transmission bracket 512, and the limit screw 510 is fixed on the second upper and lower transmission shaft 513. When the first motor 503 rotates to drive the limit switch 506 to rotate, the limit switch 506 hits the limit screw 510, and the limit switch 506 is turned on, transmitting a signal to the first motor 503, so that the first motor 503 stops rotating. Figure 4 shown.

[0049] The working principle of the upper and lower transmission components of the present invention is as follows: the first motor 503 installed on the upper and lower transmission components 5 rotates to drive the first pinion 508, the first pinion 508 drives the upper and lower gears 504, the upper and lower gears 504 drive the first upper and lower transmission shaft 505, because the first upper and lower transmission shaft 505 is fixed on the shell 3, the shell 3 as a supporting body does not move, so the first upper and lower transmission shaft 505 and the upper and lower gears 504 do not move, and finally the first motor 503 rotates to drive the upper and lower transmission components 5 to rotate (the usual practice is that the motor is installed on the shell, the rotation of the motor drives the upper and lower transmission components to rotate, and the motor itself does not move).

[0050] When the lamp of the present invention is impacted by external force, the impact force will be concentrated on the movable parts, that is, the meshing position of the upper and lower gears 504 and the first pinion 508, and the first and second upper and lower transmission shafts. Figure 5 The first force point 13 in the middle is provided with the first deep groove ball bearings 502 at both ends of the first support point 11 and the second support point 12, i.e., the first pinion 508 and the upper and lower gears 504 meshing. The two ends are supported and the middle is stressed. Such a structure is the most stable. One end of the first and second upper and lower transmission shafts is supported by the first deep groove ball bearings 502, and the other end is fixed to the housing 3. It is also a structure supported at both ends and stressed in the middle. Therefore, the upper and lower transmission structure of the present invention can absorb external impact force to the maximum extent, avoiding the impact force being transmitted to the first motor 503, thereby damaging the motor.

[0051] Please continue to see Figures 6 to 9 The horizontal transmission component 6 of the electric searchlight of the present invention includes a second motor 603, a horizontal gear 604 and a conductive slip ring 606; the second motor 603 is fixed on the horizontal transmission seat 601 through a motor fixing seat 610, and the bottom of the second motor output shaft 611 is positioned and installed on the motor fixing seat 610 through a second deep groove ball bearing 602 and a second shaft sleeve 609. One end of the second pinion 608 is sleeved on the second motor output shaft 611, and the other end is connected to the second positioning shaft 607. The second positioning shaft 607 is positioned on the horizontal transmission seat 601 through the second deep groove ball bearing 602.

[0052] The horizontal gear 604 is fixed on the horizontal transmission shaft 605 and meshes with the second pinion 608. The center distance between the two is the sum of the pitch circle radius. The conductive slip ring 606 is installed on the horizontal transmission shaft 605, so that the lamp can rotate in the horizontal direction without restriction and without winding. The horizontal transmission shaft 605 passes through the first thrust ball bearing 613, the horizontal transmission seat 601, the housing 3, the second thrust ball bearing 614 and is connected to the base 4.

[0053] The junction plate 612 is installed on the horizontal transmission seat 601, and all wires are connected on the junction plate 612 to ensure clear and firm routing.

[0054] Working principle of the horizontal transmission component: the second motor 603 is installed on the horizontal transmission component 6, and the horizontal transmission component 6 is installed on the shell 3. The second motor 603 rotates to drive the second pinion 608, and the second pinion 608 drives the horizontal gear 604. The horizontal gear 604 drives the horizontal transmission shaft 605. Since the horizontal transmission shaft 605 is fixed on the base 4, the base 4 as a supporting body does not move, so the horizontal transmission shaft 605 and the horizontal gear 604 do not move either. Because the horizontal transmission component 6 is fixed on the shell 3, the second motor 603 finally rotates to drive the shell 3 to rotate (the usual practice is that the motor is installed on the base, the rotation of the motor drives the shell to rotate, and the motor itself does not move).

[0055] The greatest advantage of the horizontal transmission structure of the present invention is that the housing 3, as a carrier for the upper and lower transmission components 5, is firmly fixed on the base 4. The horizontal transmission shaft 605, as a part connecting the housing 3 and the base 4, has a sufficient contact surface between the housing 3 and the base 4, and two thrust ball bearings as large as possible make the housing 3 more stable and less likely to shake, which avoids the lever effect caused by the top-heavy.

[0056] When the lamp is impacted by external force, for the horizontal transmission parts, such as Fig.10 The third supporting point 14 and the second force point 15, that is, the impact force is concentrated at the connection between the horizontal transmission shaft 605 and the base 4; therefore, the horizontal transmission shaft 605 and the base 4 are tightly fitted and then fastened with four screws 16. Since the housing 3 is a movable part relative to the base 4, two thrust ball bearings with larger contact surfaces are used. Therefore, the horizontal transmission structure of the present invention can absorb external impact force to the maximum extent, avoiding the impact force being transmitted to the second motor 603, thereby damaging the motor.

[0057] The first motor 503 and the second motor 603 are preferably worm gear DC reduction motors, which have a self-locking function. The motor output shaft is protected by a double-end fixing method, that is, the bottom and top of the motor output shaft are both provided with a first deep groove ball bearing 502 or a second deep groove ball bearing 602. (The usual practice is to rely on the strength of the motor reduction box itself to resist impact, or the motor has no self-locking function and releases the impact by reverse rotation.)

[0058] Since the main direction of the shock is along the vertical direction of the ship deck, when the lamp is impacted by external force, the upper and lower transmission components 5 are impacted the most. When the shock wave is transmitted to the first motor output shaft 511 in reverse through the upper and lower gears 504, most of the impact will be absorbed by the first deep groove ball bearing 502 first, and only a small part of the impact will be transmitted to the reduction box 514, which also protects the service life of the motor well (usually the gear module used in the internal gear set of a small DC reduction box is small, and it is easy to slip or displace when impacted by external force, thereby damaging the motor).

[0059] All gears are spur gears with a module greater than 1, high transmission efficiency, and are not prone to slipping, making them very suitable for vibrating environments.

[0060] The first motor 503 and the second motor 603 selected in the present invention both have a self-locking function, and the double-end fixed structure absorbs most of the external force impact, protecting the service life of the motor, so that the lamp can be used for a long time in a shaking state, and can still maintain a stable light output angle, so that the lamp head will not fall off or shake up and down during use. Preferably, the first motor 503 is installed behind the radiator 904, and the upper and lower transmission shafts are located in the front side of the radiator 904. The function of this transmission structure is to move the rotation center of the light-emitting module forward, and the advantage of doing so is that inside the same shell, the pitch angle of the light-emitting module 9 is larger, and the light 10 will not be blocked by the front cover 1. Fig.11a and Fig.11b shown.

[0061] Please continue to see Figures 12a-14b , the X axis represents frequency, and the Y axis represents acceleration. The target spectrum is the acceleration preset by the device, input 1 is the actual acceleration of the vibration table, and input 2 is the acceleration of the lamp. P1, P2, and P3 represent the three highest accelerations, indicating that the resonance here is the most obvious.

[0062] Fig.12a , 13a The acceleration values ​​of P1, P2, and P3 in curve 14a are much higher than the target spectrum, indicating that the lamp resonates at this frequency. Figure 12b , 13bIn curves 14b, the acceleration values ​​of P1, P2, and P3 are close to the target spectrum, indicating that no obvious resonance occurs in the lamp.

[0063] By comparing the above vibration curves, it can be found that the lamp of the present invention has no obvious resonance phenomenon in all directions, which shows that the structure of the lamp of the present invention has large dynamic rigidity and strong ability to resist deformation under specific dynamic excitation. Therefore, it is very suitable for use in a shock environment.

[0064] In summary, the present invention has a simple structure but complete functions. The vertical adjustment range of the lamp is ±20°, and the horizontal direction can be rotated without limit. The design adopts modular design, which is very convenient for assembly and maintenance. The lamp is compact and has a low center of gravity. Multiple protections are made on the most important transmission mechanism, which is very suitable for use on ships that are in a long-term shock environment.

[0065] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art may make some modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the definition of the claims.

Claims

1. An electric search light suitable for ship vibration environment, characterized in that: The invention comprises a housing (3), a base (4) and a light-emitting module (9); the base (4) is mounted below the housing (3); an upper and lower transmission component (5) and a horizontal transmission component (6) are mounted in the housing (3); the light-emitting module (9) is mounted on the upper and lower transmission component (5), and the light-emitting angle of the search light is adjusted in the vertical direction by the self-rotation of the upper and lower transmission component (5); the horizontal transmission component (6) adjusts the light-emitting angle of the search light in the horizontal direction by self-rotation, and fixes the housing (3) and the base (4) together; The up-down transmission component (5) comprises a first motor (503), a first up-down transmission shaft (505), a second up-down transmission shaft (513) and a second transmission bracket (512); the rotation centers of the first up-down transmission shaft (505) and the second up-down transmission shaft (513) coincide with each other; limit switches (506) are fixedly arranged on both sides of the second transmission bracket (512); and limit screws (510) are fixedly arranged on the second up-down transmission shaft (513); when the first motor (503) rotates to drive the limit switch (506) to rotate and hit the limit screw (510), the limit switch (506) is turned on and transmits a signal to the first motor (503), so that the first motor (503) stops rotating; The output shaft of the first motor (503) is a first motor output shaft (511), and the first motor output shaft (511) is embedded and mounted on the first transmission bracket (501) via a first deep groove ball bearing (502) and a first shaft sleeve (509); one end of the first upper and lower transmission shaft (505) is fixed to the first transmission bracket (501) via the first deep groove ball bearing (502), and the other end is fixed to the housing (3) via a screw; one end of the second upper and lower transmission shaft (513) is fixed to the second transmission bracket (512) via the first deep groove ball bearing (502), and the other end is fixed to the housing (3) via a screw; The first transmission bracket (501) is a CNC integrally formed bracket.

2. The electric search light suitable for ship vibration environment as claimed in claim 1, characterized in that: Upper and lower gears (504) are mounted on the first upper and lower transmission shafts (505); a first pinion (508) is arranged between the first motor output shaft (511) and the first transmission bracket (501); one end of the first pinion (508) is fixed to the first motor output shaft (511); the other end of the first pinion (508) is fixed to the first transmission bracket (501) via a first positioning shaft (507) and a first deep groove ball bearing (502); and the center distance between the first pinion (508) and the upper and lower gears (504) is the sum of the pitch circle radii of the two.

3. The electric search light suitable for ship vibration environment as claimed in claim 2, characterized in that: The upper and lower gears (504) and the first pinion (508) are both spur gears, and the module is greater than 1; the upper and lower transmission components (5) have an adjustment range of ±20° in the vertical direction.

4. The electric search light suitable for ship vibration environment as claimed in claim 1, characterized in that: The horizontal transmission component (6) comprises a second motor (603), a horizontal gear (604) and a conductive slip ring (606); the horizontal gear (604) is fixed on the horizontal transmission shaft (605) and meshes with the second pinion (608), and the center distance between the two is the sum of the pitch circle radii; the conductive slip ring (606) is installed on the horizontal transmission shaft (605), and the horizontal transmission shaft (605) passes through the first thrust ball bearing (613), the horizontal transmission seat (601), the housing (3), the second thrust ball bearing (614) and is connected to the base (4).

5. The electric search light suitable for ship vibration environment as claimed in claim 4, characterized in that: The second motor (603) is fixed on the horizontal transmission seat (601) via a motor fixing seat (610); the output shaft of the second motor (603) is a second motor output shaft (611); the bottom of the second motor output shaft (611) is positioned and installed on the motor fixing seat (610) via a second deep groove ball bearing (602) and a second shaft sleeve (609); one end of the second pinion (608) is sleeved on the second motor output shaft (611), and the other end is connected to the second positioning shaft (607); the second positioning shaft (607) is positioned and installed on the horizontal transmission seat (601) via the second deep groove ball bearing (602).

6. The electric search light suitable for ship vibration environment as claimed in claim 4, characterized in that: The horizontal transmission shaft (605) and the base (4) are tightly connected and fastened by screws.

7. The electric search light suitable for ship vibration environment as claimed in claim 1, characterized in that: The light-emitting module (9) comprises a light source board (901), a lens (902), a lens pressing plate (903) and a heat sink (904); the light source board (901) is mounted on the heat sink (904); the lens (902) is located above the light source board (901) and is fixed to the heat sink (904) via the lens pressing plate (903); the first motor (503) is mounted behind the heat sink (904); and the upper and lower transmission shafts (505) are located at a side front position of the heat sink (904).

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