A marine gear reducer transmission device

Abstract

This invention relates to the field of speed reducer equipment technology, specifically a marine speed reducer gear transmission device, including a base plate, a main structure, an observation structure, a lighting structure, an adjustment structure, a calibration structure, a motor, and a coupling. The main structure achieves effective speed reduction transmission, meeting the power output requirements of ship operation, and is structurally stable with high transmission efficiency. The design of the observation structure not only facilitates observation of the reducer's interior but also provides excellent sealing, while facilitating the installation and removal of the sealing plate for convenient maintenance. The lighting structure, used in conjunction with the observation structure, provides ample illumination for internal observation in low-light conditions, making observation clearer and more accurate. The adjustment and calibration structures enable precise adjustment and rapid calibration of the motor position, improving the efficiency and convenience of coaxiality calibration between the motor and the transmission shaft.

Description

Technical Field

[0001] This invention relates to the field of speed reducer equipment technology, specifically a marine speed reducer gear transmission device. Background Technology

[0002] During ship operation, the gear transmission device of the speed reducer plays a crucial role, as it can convert the high-speed rotational motion of the motor into the low-speed, high-torque motion required for ship propulsion.

[0003] However, in terms of observation, traditional devices usually lack convenient and well-sealed observation structures. When it is necessary to check the internal gear transmission, it is often necessary to disassemble a large number of parts, which is not only cumbersome to operate, but also affects the sealing of the device, making it easy for dust, moisture and other substances to enter the interior, affecting the normal operation and service life of the gears.

[0004] In terms of lighting, since the internal space of the reducer is relatively enclosed and the light is insufficient, external lighting equipment is often required for observation or maintenance. This is inconvenient to use, and external lighting may have blind spots and cannot clearly illuminate key internal parts. When using external power to light, it is easy to be blocked, resulting in insufficient lighting.

[0005] Regarding the connection calibration between the motor and the drive shaft, traditional devices require measuring the coaxiality of the coupling using a measuring structure when installing the motor. After the measurement, shims need to be placed under the motor. The coaxiality adjustment and calibration of the motor output shaft and the drive shaft is quite troublesome, resulting in low installation and adjustment efficiency for the motor. Summary of the Invention

[0006] To address the problems in the prior art, the present invention provides a gear transmission device for a marine speed reducer.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a marine reducer gear transmission device, including a base plate, a main structure disposed on the base plate, an observation structure disposed on the main structure, and a lighting structure disposed on the main structure;

[0008] The main structure includes a lower box and an upper box. The lower box is fixedly connected to the bottom plate, and the upper box is fixedly connected to the lower box.

[0009] The observation structure includes an observation window and a sealing plate. An observation window is provided on the upper box body, and a sealing plate is installed on the observation window. Two fixing rods in the shape of hexagonal prisms are fixedly connected to the upper box body. A rotating sleeve with a "dry" - shaped cross - section is slidably connected to the fixing rods. A first screw rod is rotatably connected to the rotating sleeve, and the first screw rod is threadedly connected to the fixing rod. A pressing block is rotatably connected to the rotating sleeve. Two arc - shaped pads are fixedly connected to the sealing plate, and the pressing block abuts against the arc - shaped pads. Two limiting holes are provided on the pressing block. Two guiding shafts are fixedly connected to the interior of the upper box body. A sliding strip is slidably connected to the guiding shafts. A limiting rod is fixedly connected to the sliding strip, and the limiting rod is slidably connected to the upper box body. The limiting rod is inserted into the limiting holes. A first spring is fixedly connected between the sliding strip and the upper box body. A pressing column is fixedly connected to the sliding strip, and the pressing column is slidably connected to the upper box body.

[0010] Specifically, four positioning columns are fixedly connected to the upper box body. Four positioning holes are provided on the sealing plate. The positioning columns are inserted into the positioning holes. A lifting ring is threadedly connected to the sealing plate.

[0011] Specifically, a sealing groove is provided on the upper box body. A sealing ring is fixedly connected to the sealing plate. The sealing ring is inserted into the interior of the sealing groove to form a sealing fit.

[0012] Specifically, a transmission shaft is rotatably connected between the lower box body and the upper box body. A first gear is fixedly connected to the transmission shaft. A rotating shaft is rotatably connected between the lower box body and the upper box body. A second gear and a third gear are fixedly connected to the rotating shaft. The second gear meshes with the first gear. The diameter of the second gear is larger than the diameter of the first gear. An output shaft is rotatably connected between the upper box body and the lower box body. A fourth gear is fixedly connected to the output shaft. The third gear meshes with the fourth gear.

[0013] Specifically, the lighting structure includes a power supply and a first wire. Two power supplies are installed on the upper housing. Each of the four corners of the upper housing is equipped with a light bulb. Two contacts of two adjacent light bulbs are connected to the negative terminal of the power supply via the first wire. A second wire connects the other two contacts of two adjacent light bulbs. A third wire is connected to the second wire. A fourth wire is connected to the positive terminal of the power supply. A Z-shaped conductive sheet is fixedly connected to the end of each of the third and fourth wires. Multiple insulating blocks are fixedly connected to the upper housing. The conductive sheet is fixedly connected to the insulating blocks. Two insulating strips are slidably connected to the upper housing. The sealing plate has a T-shaped cross-section and abuts against the insulating strips. Two second springs are fixedly connected between the bottom end of the insulating strips and the upper housing. Each insulating strip has a conductive strip that can abut against two adjacent conductive sheets. A guide rod passes through the interior of the second spring. The guide rod is fixedly connected to the insulating strip and slidably connected to the upper housing.

[0014] Specifically, the base plate is provided with an adjustment structure, which includes a lifting plate and fixed sleeves. Four fixed sleeves are fixedly connected to the four corners of the bottom end of the lifting plate. A hexagonal threaded sleeve is rotatably connected to the bottom end of the fixed sleeve. Support feet are threadedly connected to the threaded sleeves. The four support feet are fixedly connected to the base plate. Two parallel first slide rails are fixedly connected to the lifting plate. Two first slide sleeves are slidably connected to each first slide rail. A first slide plate is fixedly connected to the four first slide sleeves. Two parallel second slide rails are fixedly connected to the first slide plates. Two second slide sleeves are slidably connected to each second slide rail. A second slide plate is fixedly connected to the four second slide sleeves. A motor is fixedly connected to the four second slide plates. The output end of the motor is fixedly connected to a transmission shaft through a coupling. The directions of the first slide rails and the second slide rails are perpendicular.

[0015] Specifically, a second screw is rotatably connected to the lifting plate, a first threaded seat is fixedly connected to the first sliding plate, the second screw is threadedly connected to the first threaded seat, and a first rotating rod with an "I" shaped cross-section is slidably connected to the end of the second screw.

[0016] Specifically, a third screw is rotatably connected to the first slide plate, and a second threaded seat is fixedly connected to the second slide plate. The third screw is threadedly connected to the second threaded seat, and a second rotating rod with an "I"-shaped cross-section is slidably connected to the end of the third screw.

[0017] Specifically, the transmission shaft is provided with a calibration structure, which includes an electromagnetic suction base and a first square. The electromagnetic suction base is attached to the transmission shaft, and the first square is fixedly connected to the electromagnetic suction base. The first square abuts against the coupling, and a second square is slidably connected to the end of the first square. The first square and the second square are perpendicular to each other.

[0018] Specifically, four scale posts are fixedly connected to the base plate, a first scale bar is fixedly connected to the lifting plate, a first indicator block that works in conjunction with the first scale bar is fixedly connected to the first sliding plate, a second scale bar is fixedly connected to the first sliding plate, and a second indicator block that works in conjunction with the second scale bar is fixedly connected to the second sliding plate.

[0019] The beneficial effects of the present invention are: (1) The marine reducer gear transmission device of the present invention has a main structure on the bottom plate, and the main structure realizes effective speed reduction transmission, meets the power output requirements of ship operation, and has a stable structure and high transmission efficiency.

[0020] (2) The marine reducer gear transmission device of the present invention has an observation structure on its main structure. The design of the observation structure not only facilitates the observation of the inside of the reducer, but also has good sealing performance. At the same time, it is convenient to install and disassemble the sealing plate and make maintenance convenient.

[0021] (3) The marine gear transmission device of the present invention has a lighting structure on its main structure. The lighting structure is used in conjunction with the observation structure to provide sufficient lighting for internal observation when there is insufficient light, so that the observation is clearer and more accurate.

[0022] (4) The marine reducer gear transmission device of the present invention has an adjustment structure on the base plate and a calibration structure on the main structure. The setting of the adjustment structure and the calibration structure realizes the precise adjustment and rapid calibration of the motor position, and improves the efficiency and convenience of coaxiality calibration adjustment between the motor and the transmission shaft. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 A schematic diagram of the overall structure of a preferred embodiment of a marine gear reducer gear transmission device provided by the present invention;

[0025] Figure 2 for Figure 1 The diagram shown is an enlarged view of the structure of part A.

[0026] Figure 3 for Figure 1 The diagram shown is an enlarged view of the structure of section B.

[0027] Figure 4 for Figure 1 The diagram shows an enlarged view of section C.

[0028] Figure 5 This is a schematic diagram of the connection structure between the lower housing and the upper housing of the present invention;

[0029] Figure 6 for Figure 5 The diagram shown is an enlarged view of the structure of part D.

[0030] Figure 7 This is a schematic diagram of the connection structure between the rotating shaft and the third gear of the present invention;

[0031] Figure 8 for Figure 7 The diagram shown is an enlarged view of the structure of part E.

[0032] Figure 9 for Figure 8 The diagram shows an enlarged view of the F-section structure.

[0033] Figure 10 This is a schematic diagram of the connection structure between the upper housing and the sealing plate of the present invention;

[0034] Figure 11 for Figure 10 The diagram shows an enlarged view of the G section structure.

[0035] Figure 12 This is a schematic diagram of the connection structure between the first gear and the second gear of the present invention.

[0036] In the diagram: 1. Base plate; 2. Main structure; 201. Lower housing; 202. Upper housing; 203. Drive shaft; 204. First gear; 205. Rotating shaft; 206. Second gear; 207. Third gear; 208. Output shaft; 209. Fourth gear; 3. Observation structure; 301. Observation window; 302. Sealing plate; 303. Lifting ring; 304. Positioning hole; 305. Positioning post; 306. Sealing groove; 307. 308. Sealing ring; 309. Fixing rod; 310. Rotating sleeve; 311. First screw; 312. Pressure block; 313. Arc-shaped pad; 314. Guide shaft; 315. Sliding bar; 316. First spring; 317. Limiting rod; 318. Limiting hole; 4. Press post; 4. Lighting structure; 401. Power supply; 402. First wire; 403. Lighting bulb; 404. Second wire; 405. Third wire; 406. Fourth wire Wire; 407. Conductive sheet; 408. Insulating block; 409. Insulating strip; 410. Guide rod; 411. Second spring; 412. Conductive strip; 5. Adjustment structure; 501. Lifting plate; 502. Fixing sleeve; 503. Threaded sleeve; 504. Support foot; 505. First slide rail; 506. First sliding sleeve; 507. First sliding plate; 508. Second slide rail; 509. Second sliding sleeve; 510. Second sliding plate; 51 1. Second screw; 512. First threaded seat; 513. First rotating rod; 514. Third screw; 515. Second threaded seat; 516. Second rotating rod; 6. Calibration structure; 601. Electromagnetic suction seat; 602. First square; 603. Second square; 604. Scale post; 605. First scale bar; 606. First indicator block; 607. Second scale bar; 608. Second indicator block; 7. Motor; 8. Coupling. Detailed Implementation

[0037] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0038] like Figure 1 , Figure 2 , Figure 5 , Figure 7 , Figure 8 , Figure 10 , Figure 11 , Figure 12 As shown, the marine gear reducer gear transmission device of the present invention includes a base plate 1, a main structure 2 disposed on the base plate 1, an observation structure 3 disposed on the main structure 2, and a lighting structure 4 disposed on the main structure 2.

[0039] The main structure 2 includes a lower box 201 and an upper box 202. The lower box 201 is fixedly connected to the bottom plate 1, and the upper box 202 is fixedly connected to the lower box 201.

[0040] The observation structure 3 includes an observation window 301 and a sealing plate 302. The observation window 301 is provided on the upper box body 202, and the sealing plate 302 is installed on the observation window 301. Two hexagonal prism-shaped fixing rods 308 are fixedly connected to the upper box body 202. A rotating sleeve 309 with a cross-section of "dry" shape is slidably connected to the fixing rod 308. A first screw rod 310 is rotatably connected to the rotating sleeve 309. The first screw rod 310 is threadedly connected to the fixing rod 308. A pressing block 311 is rotatably connected to the rotating sleeve 309. Two arc-shaped pads 312 are fixedly connected to the sealing plate 302. The pressing block 311 abuts against the arc-shaped pads 312. Two limiting holes 317 are provided on the pressing block 311. Two guide shafts 313 are fixedly connected to the inside of the upper box body 202. A slide bar 314 is slidably connected to the guide shaft 313. A limiting rod 316 is fixedly connected to the slide bar 314. The limiting rod 316 is slidably connected to the upper box body 202. The limiting rod 316 is inserted into the limiting hole 317. A first spring 315 is fixedly connected between the slide bar 314 and the upper box body 202. A pressing column 318 is fixedly connected to the slide bar 314. The pressing column 318 is slidably connected to the upper box body 202; Four positioning columns 305 are fixedly connected to the upper box body 202. Four positioning holes 304 are provided on the sealing plate 302. The positioning columns 305 are inserted into the positioning holes 304. A hanging ring 303 is threadedly connected to the sealing plate 302; A sealing groove 306 is provided on the upper box body 202. A sealing ring 307 is fixedly connected to the sealing plate 302. The sealing ring 307 is inserted into the inside of the sealing groove 306 and forms a sealing fit; Align the positioning hole 304 of the sealing plate 302 with the positioning column 305 of the upper box body 202, insert the sealing ring 307 into the sealing groove 306, rotate the pressing block 311 to press the arc-shaped pads 312 tightly. At the same time, the limiting rod 316 is inserted into the limiting hole 317 under the action of the first spring 315 to complete the fixation of the sealing plate 302. When the sealing ring 307 is worn out and the sealing effect needs to be enhanced, the first screw rod 310 can be rotated to adjust the height of the rotating sleeve 309, so that the sealing plate 302 is pressed down more tightly, improving the sealing effect. When it is necessary to open the sealing plate 302 to observe the internal situation through the observation window 301, press the pressing column 318 on the slide bar 314. The pressing column 318带动 the slide bar 314 to compress the first spring xxxx and slide on the guide shaft 313, so that the limiting rod 316 is withdrawn from the limiting hole 317 to release the limitation on the pressing block 311, and then rotate the pressing block 311 to remove the sealing plate 302. The hanging ring 303 threadedly connected to the sealing plate 3xxxx facilitates the handling of the sealing plate 302; It should be noted that there seems to be an unclear expression "当密封圈307307产生损耗后" in the original text which might be a typo, and also "按柱318带动滑条314压缩第一弹簧xxxx" has an incomplete description. The above translation is based on the existing text as accurately as possible.A drive shaft 203 is rotatably connected between the lower housing 201 and the upper housing 202. A first gear 204 is fixedly connected to the drive shaft 203. A rotating shaft 205 is rotatably connected between the lower housing 201 and the upper housing 202. A second gear 206 and a third gear 207 are fixedly connected to the rotating shaft 205. The second gear 206 meshes with the first gear 204, and the diameter of the second gear 206 is larger than the diameter of the first gear 204. An output shaft 208 is rotatably connected between the upper housing 202 and the lower housing 201. A fourth gear 209 is fixedly connected to the output shaft 208. The third gear 207 meshes with the fourth gear 209. Power is input from the motor 7 to the drive shaft 203 through the coupling 8, driving the drive shaft 203 and the gears fixed thereon. The first gear 204 rotates, and since it meshes with the second gear 206, its rotation drives the second gear 206 to rotate. Because the diameter of the second gear 206 is larger than that of the first gear 204, according to the gear ratio principle, this achieves the first reduction in speed, decreasing the rotational speed and increasing the torque. The second gear 206 and the third gear 207 are fixed on the same shaft 205. The rotation of the second gear 206 drives the shaft 205 and the third gear 207 to rotate synchronously. The third gear 207 meshes with the fourth gear 209, and its rotation drives the fourth gear 209 and the output shaft 208 to rotate, completing the second transmission. Finally, the reduced power is output through the output shaft 208, meeting the low-speed, high-torque power requirements of ship propulsion and other equipment.

[0041] Specifically, such as Figure 2 , Figure 8 , Figure 9 , Figure 10 and Figure 11As shown, the lighting structure 4 includes a power supply 401 and a first wire 402. Two power supplies 401 are installed on the upper housing 202. A light bulb 403 is located at each of the four corners of the upper housing 202. Two contacts of two adjacent light bulbs 403 are connected to the negative terminal of the power supply 401 via the first wire 402. A second wire 404 connects the other two contacts of two adjacent light bulbs 403. A third wire 405 is connected to the second wire 404. The positive terminal of the power supply 401 is connected to... The fourth conductor 406, the third conductor 405, and the fourth conductor 406 are all fixedly connected to an end with a Z-shaped conductive sheet 407. Multiple insulating blocks 408 are fixedly connected to the upper housing 202. The conductive sheet 407 is fixedly connected to the insulating block 408. Two insulating strips 409 are slidably connected to the upper housing 202. The sealing plate 302 has a T-shaped cross-section and abuts against the insulating strips 409. Two second springs 41 are fixedly connected between the bottom end of the insulating strips 409 and the upper housing 202. 1. Each insulating strip 409 is fixedly connected to a conductive strip 412 that can abut against two adjacent conductive sheets 407. A guide rod 410 passes through the interior of the second spring 411. The guide rod 410 is fixedly connected to the insulating strip 409 and slidably connected to the upper housing 202. When the sealing plate 302 is installed and fixed, because the cross-section of the sealing plate 302 is T-shaped, the sealing plate 302 will abut against the insulating strip 409 slidably connected to the upper housing 202, causing the insulating strip 409 to compress the second spring 411 at its bottom end. When the conductive strip 412 on the insulating strip 409 separates from the conductive sheet 407 fixed on the upper housing 202 by the insulating block 408, the lighting bulb 403 is in the off state. The guide rod 410 plays a guiding role during the sliding of the insulating strip 409. When the sealing plate 302 is removed, the insulating strip 409 slides upward under the elastic force of the second spring 411, causing the conductive strip 412 to abut against the two adjacent conductive sheets 407, so that the circuit is connected. At this time, the lighting bulbs 403 at the four corners of the upper housing 202 light up to provide illumination for the observation window 301.

[0042] Specifically, such as Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 12As shown, the base plate 1 is provided with an adjustment structure 5, which includes a lifting plate 501 and fixed sleeves 502. Four fixed sleeves 502 are fixedly connected to the four corners of the bottom end of the lifting plate 501. A hexagonal threaded sleeve 503 is rotatably connected to the bottom end of the fixed sleeve 502. Support feet 504 are threadedly connected to the threaded sleeve 503. The four support feet 504 are fixedly connected to the base plate 1. Two parallel first slide rails 505 are fixedly connected to the lifting plate 501. Two first sliding sleeves 506 are slidably connected to each first slide rail 505. First sliding plates are fixedly connected to the four first sliding sleeves 506. 507, two parallel second slide rails 508 are fixedly connected to the first slide plate 507, two second slide sleeves 509 are slidably connected to each second slide rail 508, and two second slide plates 510 are fixedly connected to the four second slide sleeves 509. A motor 7 is fixedly connected to the four second slide plates 510, and the output end of the motor 7 is fixedly connected to the transmission shaft 203 through a coupling 8. The first slide rail 505 is perpendicular to the direction of the second slide rails 508. A second screw 511 is rotatably connected to the lifting plate 501, and a first threaded seat 512 is fixedly connected to the first slide plate 507. The second screw 511 is rotatably connected to the first threaded seat 512. A threaded seat 512 is threadedly connected to the second screw 511, and a first rotating rod 513 with an "I"-shaped cross-section is slidably connected to the end of the second screw 511; a third screw 514 is rotatably connected to the first slide plate 507, and a second threaded seat 515 is fixedly connected to the second slide plate 510. The third screw 514 is threadedly connected to the second threaded seat 515, and a second rotating rod 516 with an "I"-shaped cross-section is slidably connected to the end of the third screw 514; when installing the motor 7, precise installation is required through the adjustment structure 5 and the calibration structure 6. First, the motor 7 is fixedly connected to the second slide plate 510, and then the lifting plate 50 is rotated. The threaded sleeves 503 on the four corner fixing sleeves 502 at the bottom end are threadedly connected to the support feet 504 fixedly connected to the base plate 1, thereby adjusting the height of the lifting plate 501 so that the motor 7 is approximately at the height position corresponding to the transmission shaft 203; then, the first rotating rod 513 at the end of the second screw 511 on the lifting plate 501 is rotated. Since the second screw 511 is threadedly connected to the first threaded seat 512 on the first slide plate 507, and the first slide plate 507 slides on the first slide rail 505 on the lifting plate 501 through the first sliding sleeve 506, the first slide plate 507 is driven to move along the direction of the first slide rail 505.Then rotate the second rotating rod 516 at the end of the third screw 514 on the first slide plate 507. Since the third screw 514 is threadedly connected to the second threaded seat 515 on the second slide plate 510, and the second slide plate 510 slides on the second slide rail 508 on the first slide plate 507 through the second sliding sleeve 509, thereby driving the second slide plate 510 to move along the direction of the second slide rail 508. The first slide rail 505 is perpendicular to the direction of the second slide rail 508, realizing the position adjustment of the motor 7 in two vertical directions on the horizontal plane.

[0043] The drive shaft 203 is equipped with a calibration structure 6, which includes an electromagnetic suction base 601 and a first angle ruler 602. The electromagnetic suction base 601 is attracted to the drive shaft 203, and the first angle ruler 602 is fixedly connected to the electromagnetic suction base 601. The first angle ruler 602 abuts against the coupling 8, and a second angle ruler 603 is slidably connected to the end of the first angle ruler 602. The first angle ruler 602 and the second angle ruler 603 are perpendicular to each other. Four scale posts 604 are fixedly connected to the base plate 1. A first scale bar 605 is fixedly connected to the lifting plate 501. A first indicator block 606 that cooperates with the first scale bar 605 is fixedly connected to the first sliding plate 507. A second scale bar 607 is fixedly connected to the first sliding plate 507, and a second indicator block 608 that cooperates with the second scale bar 607 is fixedly connected to the second sliding plate 510. During adjustment... During the positioning of motor 7, precise calibration is performed through calibration structure 6, which attracts electromagnetic chuck 601 onto drive shaft 203. First angle ruler 602 fixedly connected to electromagnetic chuck 601 abuts against coupling 8. Second angle ruler 603 slidably connected to the end of first angle ruler 602 is perpendicular to the direction of first angle ruler 602. The coaxiality of motor 7 output shaft and drive shaft 203 can be detected through first angle ruler 602 and second angle ruler 603. At the same time, the scale column 604 on base plate 1 can observe the lifting height of lifting plate 501. First scale bar 605 on lifting plate 501 cooperates with first indicator block 606 on first slide plate 507, and second scale bar 607 on first slide plate 507 cooperates with second indicator block 608 on second slide plate 510, which can accurately display the moving distance of first slide plate 507 and second slide plate 510, ensuring precise alignment of motor 7 output shaft and drive shaft 203.

[0044] In use, the invention first fixes the base plate 1 to the mounting foundation. Then, the drive shaft 203, rotating shaft 205, output shaft 208, and gear assembly are installed inside the lower housing 201. The upper housing 202 is closed and fixed. The positioning hole 304 of the sealing plate 302 is aligned with the positioning post 305 of the upper housing 202, allowing the sealing ring 307 to be inserted into the sealing groove 306. The pressure block 311 is rotated to press the arc-shaped pad 312, while the limiting rod 316 is inserted into the limiting hole 317 under the action of the first spring 315, thus completing the fixing of the sealing plate 302. When the sealing ring 307 is worn out, in order to enhance the sealing effect... The height of the rotating sleeve 309 can be adjusted by rotating the first screw 310, which makes the sealing plate 302 press down more tightly and improves the sealing effect. When it is necessary to open the sealing plate 302 to observe the internal situation through the observation window 301, press the push post 318 on the slide bar 314. The push post 318 drives the slide bar 314 to compress the first spring 315 and slide on the guide shaft 313, so that the limiting rod 316 is pulled out from the limiting hole 317, releasing the limitation on the pressure block 311. Then rotate the pressure block 311 to remove the sealing plate 302. The lifting ring 303 connected to the thread on the sealing plate 302 facilitates the handling of the sealing plate 302.

[0045] Then, when the sealing plate 302 is installed and fixed, since the cross-section of the sealing plate 302 is T-shaped, the sealing plate 302 will abut against the insulating strip 409 that is slidably connected on the upper box 202, causing the insulating strip 409 to compress the second spring 411 at the bottom end. At this time, the conductive strip 412 on the insulating strip 409 separates from the conductive sheet 407 fixed on the upper box 202 by the insulating block 408, and the lighting bulb 403 is in the off state. The guide rod 410 plays a guiding role during the sliding of the insulating strip 409. When the sealing plate 302 is removed, the insulating strip 409 slides upward under the elastic force of the second spring 411, causing the conductive strip 412 to abut against the two adjacent conductive sheets 407, so that the circuit is connected. At this time, the lighting bulbs 403 at the four corners of the upper box 202 light up, providing illumination for the observation window 301.

[0046] Secondly, power is input from motor 7 to transmission shaft 203 through coupling 8, driving transmission shaft 203 and the first gear 204 fixed on it to rotate. Since the first gear 204 meshes with the second gear 206, the rotation of the first gear 204 will drive the second gear 206 to rotate. Since the diameter of the second gear 206 is larger than that of the first gear 204, according to the principle of gear transmission ratio, the first deceleration is achieved at this time, the speed decreases and the torque increases. The second gear 206 and the third gear 207 are fixed on the same rotating shaft 205. The rotation of the second gear 206 drives the rotating shaft 205 and the third gear 207 to rotate synchronously. The third gear 207 meshes with the fourth gear 209. The rotation of the third gear 207 drives the fourth gear 209 and the output shaft 208 to rotate, completing the second transmission. Finally, the decelerated power is output through the output shaft 208 to meet the demand of ship propulsion and other equipment for low-speed, high-torque power.

[0047] Finally, when installing the motor 7, precise installation is required through adjusting structure 5 and calibrating structure 6. First, fix the motor 7 to the second slide plate 510. Then, rotate the threaded sleeves 503 on the four corner fixing sleeves 502 at the bottom of the lifting plate 501. Since the threaded sleeves 503 are threadedly connected to the support feet 504 fixed on the base plate 1, the height of the lifting plate 501 is adjusted so that the motor 7 is approximately at the height position corresponding to the drive shaft 203. Next, rotate the first rotating rod 513 at the end of the second screw 511 on the lifting plate 501. The screw 511 is threadedly connected to the first threaded seat 512 on the first slide plate 507, and the first slide plate 507 slides on the first slide rail 505 on the lifting plate 501 via the first sliding sleeve 506, thereby driving the first slide plate 507 to move along the direction of the first slide rail 505; then rotate the second rotating rod 516 at the end of the third screw 514 on the first slide plate 507. Since the third screw 514 is threadedly connected to the second threaded seat 515 on the second slide plate 510, and the second slide plate 510 slides on the second slide rail 508 on the first slide plate 507 via the second sliding sleeve 509... The sliding mechanism drives the second slide plate 510 to move along the direction of the second slide rail 508, where the first slide rail 505 is perpendicular to the direction of the second slide rail 508, thereby achieving position adjustment of the motor 7 in two vertical directions on the horizontal plane. During the adjustment of the motor 7 position, precise calibration is performed through the calibration structure 6, and the electromagnetic suction base 601 is attracted to the transmission shaft 203. The first angle ruler 602 fixedly connected to the electromagnetic suction base 601 abuts against the coupling 8. The second angle ruler 603 slidably connected to the end of the first angle ruler 602 is perpendicular to the direction of the first angle ruler 602. Ruler 602 and second square 603 can detect the coaxiality of the output shaft of motor 7 and the transmission shaft 203; at the same time, the scale column 604 on the base plate 1 can observe the lifting height of the lifting plate 501. The first scale bar 605 on the lifting plate 501 cooperates with the first indicator block 606 on the first slide plate 507, and the second scale bar 607 on the first slide plate 507 cooperates with the second indicator block 608 on the second slide plate 510, which can accurately display the moving distance of the first slide plate 507 and the second slide plate 510, ensuring that the output shaft of motor 7 and the transmission shaft 203 are precisely aligned.

[0048] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0049] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A marine gear reducer gear transmission device, characterized in that, It includes a base plate (1), a main structure (2) on the base plate (1), an observation structure (3) on the main structure (2), and a lighting structure (4) on the main structure (2). The main structure (2) includes a lower box (201) and an upper box (202). The lower box (201) is fixedly connected to the bottom plate (1), and the upper box (202) is fixedly connected to the lower box (201). The observation structure (3) includes an observation window (301) and a sealing plate (302). The observation window (301) is provided on the upper box body (202), and the sealing plate (302) is installed on the observation window (301). Two fixing rods (308) in the shape of hexagonal prisms are fixedly connected to the upper box body (202). A rotating sleeve (309) with a cross-section of "dry" shape is slidably connected to the fixing rod (308). A first screw rod (310) is rotatably connected to the rotating sleeve (309), and the first screw rod (310) is threadedly connected to the fixing rod (308). A pressing block (311) is rotatably connected to the rotating sleeve (309). Two arc-shaped pads (312) are fixedly connected to the sealing plate (302), and the pressing block (311) abuts against the arc-shaped pads (312). Two limiting holes (317) are provided on the pressing block (311). Two guide shafts (313) are fixedly connected to the inside of the upper box body (202). A sliding bar (314) is slidably connected to the guide shaft (313). A limiting rod (316) is fixedly connected to the sliding bar (314), and the limiting rod (316) is slidably connected to the upper box body (202). The limiting rod (316) is inserted into the limiting hole (317). A first spring (315) is fixedly connected between the sliding bar (314) and the upper box body (202). A pressing column (318) is fixedly connected to the sliding bar (314), and the pressing column (318) is slidably connected to the upper box body (202); Four positioning columns (305) are fixedly connected to the upper box body (202). Four positioning holes (304) are provided on the sealing plate (302), and the positioning columns (305) are inserted into the positioning holes (304). A lifting ring (303) is threadedly connected to the sealing plate (302); A sealing groove (306) is provided on the upper box body (202). A sealing ring (307) is fixedly connected to the sealing plate (302), and the sealing ring (307) is inserted into the inside of the sealing groove (306) to form a sealing fit;Align the positioning hole (304) of the sealing plate (302) with the positioning post (305) of the upper housing (202), insert the sealing ring (307) into the sealing groove (306), rotate the pressure block (311) to press the arc-shaped pad (312), and at the same time, the limiting rod (316) is inserted into the limiting hole (317) under the action of the first spring (315) to complete the fixing of the sealing plate (302). When the sealing ring (307) is worn out, in order to enhance the sealing effect, the height of the rotating sleeve (309) can be adjusted by rotating the first screw (310). This causes the sealing plate (302) to be pressed down more tightly, improving the sealing effect. When it is necessary to open the sealing plate (302) to observe the internal situation through the observation window (301), press the push post (318) on the slide bar (314). The push post (318) drives the slide bar (314) to compress the first spring (315) and slide it on the guide shaft (313), causing the limiting rod (316) to be pulled out from the limiting hole (317), releasing the limitation on the pressure block (311). Then rotate the pressure block (311) to remove the sealing plate (302).

2. The marine gear reducer gear transmission device according to claim 1, characterized in that: A drive shaft (203) is rotatably connected between the lower housing (201) and the upper housing (202). A first gear (204) is fixedly connected to the drive shaft (203). A rotating shaft (205) is rotatably connected between the lower housing (201) and the upper housing (202). A second gear (206) and a third gear (207) are fixedly connected to the rotating shaft (205). The second gear (206) meshes with the first gear (204). The diameter of the second gear (206) is greater than the diameter of the first gear (204). An output shaft (208) is rotatably connected between the upper housing (202) and the lower housing (201). A fourth gear (209) is fixedly connected to the output shaft (208). The third gear (207) meshes with the fourth gear (209).

3. The marine gear reducer gear transmission device according to claim 1, characterized in that: The lighting structure (4) includes a power supply (401) and a first wire (402). Two power supplies (401) are installed on the upper housing (202). Each of the four corners of the upper housing (202) is equipped with a light bulb (403). Two contacts of two adjacent light bulbs (403) are connected to the negative terminal of the power supply (401) through the first wire (402). A second wire (404) is connected between the other two contacts of two adjacent light bulbs (403). A third wire (405) is connected to the second wire (404). A fourth wire (406) is connected to the positive terminal of the power supply (401). A Z-shaped conductive sheet (407) is fixedly connected to the ends of the third wire (405) and the fourth wire (406). The upper housing (202) 02) Multiple insulating blocks (408) are fixedly connected to the upper box (202). The conductive sheet (407) is fixedly connected to the insulating block (408). Two insulating strips (409) are slidably connected to the upper box (202). The sealing plate (302) has a T-shaped cross section. The sealing plate (302) abuts against the insulating strip (409). Two second springs (411) are fixedly connected between the bottom end of the insulating strip (409) and the upper box (202). Each insulating strip (409) is fixedly connected to a conductive strip (412) that can abut against two adjacent conductive sheets (407). A guide rod (410) passes through the interior of the second spring (411). The guide rod (410) is fixedly connected to the insulating strip (409). The guide rod (410) is slidably connected to the upper box (202).

4. A marine gear reducer gear transmission device according to claim 2, characterized in that: The base plate (1) is provided with an adjustment structure (5), which includes a lifting plate (501) and a fixing sleeve (502). Four fixing sleeves (502) are fixedly connected to the four corners of the bottom end of the lifting plate (501). A hexagonal prism threaded sleeve (503) is rotatably connected to the bottom end of the fixing sleeve (502). A support foot (504) is threadedly connected to the threaded sleeve (503). The four support feet (504) are fixedly connected to the base plate (1). Two parallel first slide rails (505) are fixedly connected to the lifting plate (501). Two first slide rails (505) are slidably connected to each first slide rail (505). The first slide sleeve (506) is fixedly connected to four first slide sleeves (506), and two parallel second slide rails (508) are fixedly connected to the first slide rails (507). Two second slide sleeves (509) are slidably connected to each second slide rail (508). Two second slide rails (509) are fixedly connected to the four second slide sleeves (509), and a motor (7) is fixedly connected to the four second slide rails (510). The output end of the motor (7) is fixedly connected to the transmission shaft (203) through a coupling (8). The first slide rail (505) is perpendicular to the direction of the second slide rail (508).

5. A marine gear reducer gear transmission device according to claim 4, characterized in that: The lifting plate (501) is rotatably connected to a second screw (511), the first sliding plate (507) is fixedly connected to a first threaded seat (512), the second screw (511) is threadedly connected to the first threaded seat (512), and the end of the second screw (511) is slidably connected to a first rotating rod (513) with an "I" shaped cross section.

6. A marine gear reducer gear transmission device according to claim 4, characterized in that: A third screw (514) is rotatably connected to the first slide plate (507), and a second threaded seat (515) is fixedly connected to the second slide plate (510). The third screw (514) is threadedly connected to the second threaded seat (515), and a second rotating rod (516) with an "I" shaped cross section is slidably connected to the end of the third screw (514).

7. A marine gear reducer gear transmission device according to claim 4, characterized in that: The drive shaft (203) is provided with a calibration structure (6), which includes an electromagnetic suction base (601) and a first square (602). The electromagnetic suction base (601) is attached to the drive shaft (203), and the first square (602) is fixedly connected to the electromagnetic suction base (601). The first square (602) abuts against the coupling (8), and the end of the first square (602) is slidably connected to a second square (603). The first square (602) and the second square (603) are perpendicular to each other.

8. A marine gear reducer gear transmission device according to claim 7, characterized in that: Four scale posts (604) are fixedly connected to the base plate (1), a first scale bar (605) is fixedly connected to the lifting plate (501), a first indicator block (606) that works in conjunction with the first scale bar (605) is fixedly connected to the first slide plate (507), a second scale bar (607) is fixedly connected to the first slide plate (507), and a second indicator block (608) that works in conjunction with the second scale bar (607) is fixedly connected to the second slide plate (510).

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