A tensioning device for a ship shaft generator

Abstract

The present invention discloses a tensioning device for a ship shaft-belt generator, comprising a housing, a connecting shaft and a generator body, wherein the generator body is provided with an input shaft, the connecting shaft and the input shaft are arranged side by side, and the two are rotatably connected with a driving pulley and a driven pulley respectively, and a synchronous belt is sleeved between the driving pulley and the driven pulley; a mounting frame, a driving device and a controller are provided inside the housing, a speed measuring pulley is rotatably connected to the mounting frame, and a speed measuring device is provided on the mounting frame; the speed measuring pulley is rotatably connected with a transmission member, the transmission member is provided with two driving members, a tensioning assembly is provided on the driving member, and the two tensioning assemblies are respectively located above and below the synchronous belt, and the output end of the driving device is connected to the transmission member. The present invention discloses a tensioning device for a ship shaft-belt generator, which performs tensioning work on the synchronous belt, and the synchronous belt is subjected to uniform force, thereby ensuring stable transmission between the connecting shaft and the input shaft, so that the generator body can operate normally before the ship is shut down.

Description

Technical Field

[0001] The invention relates to the technical field of generator auxiliary equipment, and in particular to a tensioning device for a ship shaft generator. Background Art

[0002] At present, the shaft belt generator is a device that directly converts mechanical energy into electrical energy. It can be directly connected to the ship's power main shaft and use the rotational power of the ship's main shaft to drive the generator, thereby generating electrical energy. Usually, the shaft belt generator on the ship is connected to the ship's main shaft through a transmission mechanism. Especially on some small and medium-sized ships, the space shaft belt generator and the ship's main shaft are placed side by side and the two are transmitted through a synchronous belt. However, during the long-term operation, the synchronous belt will gradually become loose and offset, resulting in a decrease in transmission efficiency. Before the ship is shut down, the synchronous belt needs to be tightened to ensure the normal use of the shaft belt generator. Summary of the invention

[0003] The purpose of the present invention is to solve the deficiencies of the above-mentioned technology and to design a tensioning device for a ship shaft belt generator, which can tighten the synchronous belt, ensure that the synchronous belt is evenly stressed, and ensure stable transmission between the connecting shaft and the input shaft, so that the generator body can operate normally before the ship is shut down.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: a tensioning device for a ship shaft-driven generator, comprising a housing, a connecting shaft arranged inside the housing and a generator body, one end of the connecting shaft is rotatably connected with, the generator body is provided with an input shaft, the connecting shaft and the input shaft are arranged side by side, and the two are rotatably connected with a driving pulley and a driven pulley respectively, and a synchronous belt is sleeved between the driving pulley and the driven pulley;

[0005] The housing is provided with a mounting frame, a driving device, and a controller. The mounting frame is rotatably connected to a speed measuring pulley, the speed measuring pulley is sleeved on the inner wall of the synchronous belt, and the mounting frame is provided with a speed measuring device for detecting the speed of the speed measuring pulley. The driving device and the speed measuring device are both connected to and controlled by the controller.

[0006] The speed measuring pulley is rotatably connected to a transmission member, and the transmission member is provided with two driving members. A tensioning assembly is provided on the driving member, and the two tensioning assemblies are respectively located above and below the synchronous belt. The tensioning assembly includes a tensioning pulley, and the tensioning pulley abuts against the outer wall of the synchronous belt. The output end of the driving device is connected to the transmission member for driving the transmission member to rotate relative to the speed measuring pulley.

[0007] Preferably, a mounting plate is provided inside the shell, and the generator body, the driving device, and a support frame for rotationally connecting the connecting shaft are fixedly connected in sequence on the mounting plate, and a power storage device is provided at a position of the mounting plate close to the driving device, the tension pulley is a generator wheel, and the generator body and the tension pulley are both electrically connected to the power storage device.

[0008] Preferably, the mounting plate and the bottom plate of the shell are parallel and spaced apart to form a cavity, the shell is penetrated by a drainage hole connected to the cavity, and a plug is detachably connected to the drainage hole.

[0009] Preferably, the tensioning assembly further includes a bracket and a separation roller, the tensioning pulley is rotatably connected to the bracket, and the separation roller is rotatably connected to the driving member.

[0010] Preferably, the driving device is a servo motor, the transmission member is a gear structure, the driving member is slidably connected to the mounting frame, and rack segments meshing with the transmission member are provided on opposite sides of two driving members.

[0011] Preferably, the mounting frame is provided with two guide rods arranged opposite to each other, the bracket cooperates with the corresponding driving member to form an L-shaped frame structure, and the L-shaped frame structure is in abutment with the guide rods.

[0012] Preferably, the guide rod is provided with a guide rail portion extending along the height direction thereof, and the bracket is slidably connected to the corresponding guide rail portion.

[0013] Preferably, the mounting bracket is detachably connected to the bottom plate of the shell, the mounting plate is penetrated by an assembly groove for accommodating the mounting bracket, the two guide rods are both abutted against the inner groove wall of the assembly groove, and a connecting plate is provided between the two guide rods, and the connecting plate is detachably connected to the mounting plate.

[0014] Preferably, the driving device is a servo motor, the transmission member is a disc structure, and the driving member is fixedly connected to the transmission member.

[0015] Preferably, a bearing is provided in the middle of the transmission member, and the outer ring of the bearing is fixedly connected to the transmission member. The two sides of the speed measuring pulley are respectively provided with a first rotating shaft and a second rotating shaft which are coaxially arranged. The first rotating shaft is rotatably connected to the mounting frame, and the second rotating shaft is sleeved on the inner ring of the bearing. The output end of the driving device is coaxially arranged with the transmission member, and a partition frame is provided between the output end of the driving device and the transmission member.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the present invention, the connecting shaft is connected to the main power shaft of the ship through a connecting flange, and the input shaft of the generator body is transmitted in cooperation with the connecting shaft through a synchronous belt. During this process, the synchronous belt drives the speed measuring pulley to rotate, and the speed measuring device detects the rotation speed of the speed measuring pulley to judge the transmission stability between the connecting shaft and the generator body. When the synchronous belt becomes loose after long-term use, the speed measuring device detects that the rotation speed of the speed measuring pulley is unstable. At this time, the driving device drives the transmission member to drive the two driving members to move relative to each other. The tensioning pulley and the separating roller of the tensioning assembly are both in contact with the outer wall of the synchronous belt. The two tensioning assemblies approach each other synchronously to tighten the synchronous belt, and the synchronous belt is evenly stressed, thereby ensuring stable transmission between the connecting shaft and the input shaft, so that the generator body can operate normally before the ship is shut down, thereby improving the stability of the power system in the ship. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the tensioning device in Example 1. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of the tensioning device in Example 1. Figure 2 ;

[0020] Figure 3 The structure diagram of the connecting shaft and the generator body in the housing in the first embodiment Figure 1 ;

[0021] Figure 4 The structure diagram of the connecting shaft and the generator body in the housing in the first embodiment Figure 2 ;

[0022] Figure 5 is a cross-sectional view of the tensioning device in the first embodiment;

[0023] Figure 6 It is a structural schematic diagram of another implementation method of the transmission member and the driving member in Example 1;

[0024] Figure 7 is a schematic structural diagram of the tensioning device in the second embodiment;

[0025] Figure 8 This is a cross-sectional view of the tensioning device in Example 2. Figure 1 ;

[0026] Fig. 9 This is a cross-sectional view of the tensioning device in Example 2. Figure 2 .

[0027] In the figure: 1, housing; 101, cavity; 102, drainage hole; 103, plugging part; 104, observation window; 105, rotating hole; 2, connecting shaft; 201, driving pulley; 202, connecting flange; 3, generator body; 301, input shaft; 302, driven pulley; 4, synchronous belt; 5, mounting frame; 501, guide rod; 502, guide rail; 503, connecting plate; 6, driving device; 7, controller; 8, speed measuring pulley; 801, first rotating shaft; 802, second rotating shaft; 9, speed measuring device; 10, driving device Moving part; 1001, rack segment; 11, tensioning assembly; 111, tensioning pulley; 112, separator roller; 113, bracket; 12, transmission part; 1201, bearing; 13, mounting plate; 1301, assembly groove; 14, support frame; 15, power storage device; 16, partition frame; 17, water level alarm; 18, connecting frame; 1801, baffle; 1802, avoidance groove; 19, side slide groove; 20, mounting bolt; 21, locking block; 22, lock core; 23, protective cover; 24, side view window; 25, perspective plate. DETAILED DESCRIPTION

[0028] The present invention will be further described below by way of embodiments in conjunction with the accompanying drawings.

[0029] Embodiment 1:

[0030] refer to Figure 1 , Figure 2 , Figure 3 A tensioning device for a ship shaft-belt generator comprises a shell 1, a connecting shaft 2 and a generator body 3. A mounting plate 13 and a mounting frame 5 are arranged inside the shell 1. The generator body 3, a driving device 6, and a support frame 14 for rotatably connecting the connecting shaft 2 are fixedly connected to the mounting plate 13 in sequence. One end of the connecting shaft 2 is rotatably connected to a driving pulley 201. The shell 1 is penetrated with a rotating hole 105 for the connecting shaft 2 to pass through. The other end of the connecting shaft 2 passes through the shell 1 and is detachably connected to a connecting flange 202. The connecting shaft 2 is connected to the main engine shaft of the ship through the connecting flange 202.

[0031] The generator body 3 is provided with an input shaft 301 , which is arranged side by side with the connecting shaft 2 and is rotatably connected to a driven pulley 302 , and a synchronous belt 4 is sleeved between the driving pulley 201 and the driven pulley 302 .

[0032] A speed measuring pulley 8 is rotatably connected to the mounting frame 5, and the speed measuring pulley 8 is sleeved on the inner wall of the synchronous belt 4. A speed measuring device 9 is provided on the mounting frame 5. The sensing end of the speed measuring device 9 corresponds to the outer wall of the speed measuring pulley 8 and is used to detect the rotation speed of the speed measuring pulley 8.

[0033] refer to Figure 2 , Figure 3 , Figure 4 , Figure 5 The mounting plate 13 is fixedly connected with the controller 7, and the driving device 6 and the speed measuring device 9 are both connected to and controlled by the controller 7. The input shaft 301 of the generator body 3 is driven by the connecting shaft 2 through the synchronous belt 4. In this process, the synchronous belt 4 drives the speed measuring pulley 8 to rotate, and the speed measuring device 9 detects the speed of the speed measuring pulley 8 to determine the transmission stability between the connecting shaft 2 and the generator body 3.

[0034] Two driving members 10 are movably connected to the mounting frame 5. Two guide rods 501 arranged opposite to each other are provided on the mounting frame 5. A tensioning assembly 11 is provided on the driving member 10. The two tensioning assemblies 11 are respectively located above and below the synchronous belt 4. The tensioning assembly 11 includes a bracket 113, and a tensioning pulley 111 and a separating roller 112 arranged at intervals. The tensioning pulley 111 is rotatably connected to the bracket 113, and the separating roller 112 is rotatably connected to the driving member 10.

[0035] The bracket 113 cooperates with its corresponding driving member 10 to form an L-shaped frame structure, which is in contact with the guide rod 501. The guide rod 501 is provided with a guide rail portion 502 extending along its height direction. The bracket 113 is slidably connected with its corresponding guide rail portion 502 to guide the movement direction of the driving member 10. The speed measuring pulley 8 is rotatably connected with a transmission member 12 located between the two driving members 10. A bearing 1201 is provided in the middle of the transmission member 12. The outer ring of the bearing 1201 is fixedly connected to the transmission member 12. The two sides of the speed measuring pulley 8 are respectively a first rotating shaft 801 and a second rotating shaft 802 which are coaxially arranged. The first rotating shaft 801 is rotatably connected to the mounting frame 5. The second rotating shaft 802 is sleeved on the inner ring of the bearing 1201. The output end of the driving device 6 is coaxially arranged with the transmission member 12. A U-shaped partition frame 16 is provided between the output end of the driving device 6 and the transmission member 12 to connect the output end of the driving device 6 with the transmission member 12. Preferably, the driving device 6 is a servo motor, the transmission member 12 is a gear structure, and the opposite sides of the two driving members 10 are provided with rack segments 1001 meshing with the transmission member 12. When the transmission member 12 rotates, the two driving members 10 translate relative to or away from each other under the cooperation of the rack segment 1001 and the gear rack of the transmission member 12, so that the two tensioning components 11 can open and close synchronously along the straight line direction. An observation window 104 is provided on the side wall of the housing 1 close to the tensioning component 11. The observation window 104 is made of transparent glass or transparent plastic, which is convenient for the staff to observe the operation of the tensioning device.

[0036] When the synchronous belt 4 becomes loose after being used for a long time, the speed measuring device 9 detects that the rotation speed of the speed measuring pulley 8 is unstable. At this time, the transmission member 12 is driven by the driving device 6 to drive the two driving members 10 to move relative to each other. The tensioning pulley 111 and the separating roller 112 of the tensioning assembly 11 are both in contact with the outer wall of the synchronous belt 4. The separating roller 112 can help the synchronous belt 4 maintain an appropriate tension to prevent the synchronous belt 4 from slackening and causing slippage or vibration. The setting of the separating roller 112 can evenly distribute the load on the synchronous belt 4, reduce wear and extend the service life of the synchronous belt 4. The two tensioning components 11 synchronously approach each other to tighten the synchronous belt 4 until the synchronous belt 4 is tightened to a normal tensioning working state. The speed measuring device 9 detects that the rotation speed of the speed measuring pulley 8 is stable, and the controller 7 stops the driving device 6, thereby positioning the transmission member 12 and realizing the positioning of the two driving members 10 to maintain the tension of the synchronous belt 4 by the two tensioning components 11. The synchronous belt 4 is evenly stressed, ensuring stable transmission between the connecting shaft 2 and the input shaft 301, so that the generator body 3 can operate normally before the ship is shut down, thereby improving the stability of the power system in the ship.

[0037] refer to Figure 3 , Figure 4 A power storage device 15 is provided on the mounting plate 13 near the driving device 6. The tensioning pulley 111 is a generator wheel. The generator body 3 and the tensioning pulley 111 are electrically connected to the power storage device 15, so as to charge the power storage device 15. The power storage device 15 supplies power to the driving device 6 and the controller 7. When the two tensioning pulleys 111 tighten the synchronous belt 4, the synchronous belt 4 drives the tensioning pulley 111 to rotate. When the tensioning pulley 111 rotates, it drives the generator inside it to generate electricity, and uses part of the kinetic energy of the synchronous belt 4 during the transmission process to generate electricity, thereby improving energy utilization.

[0038] refer to Figure 3 , Figure 5 The mounting plate 13 and the bottom plate of the housing 1 are parallel and spaced to form a cavity 101. The housing 1 is penetrated with a drainage hole 102 connected to the cavity 101. A plug 103 is detachably connected to the drainage hole 102. The drainage hole 102 and the plug 103 can be threadedly connected. When water enters the housing 1, the water enters the cavity 101. The cavity 101 can be used as a buffer to temporarily store the water entering the housing 1. Preferably, a water level alarm 17 can be installed in the cavity 101 to give an early warning when the water level in the cavity 101 is too high or too low, reminding the staff to remove the plug 103 in time, promote the discharge of accumulated water, and avoid the accumulation of water in the housing 1.

[0039] The mounting plate 13 is penetrated with an assembly groove 1301 for accommodating the mounting frame 5. The mounting frame 5 is detachably connected to the bottom plate of the housing 1, and the bottom of the mounting frame 5 is fixedly connected to the bottom plate of the housing 1 by bolts; the two guide rods 501 are both abutted against the inner groove wall of the assembly groove 1301, and a connecting plate 503 is arranged between the two guide rods 501. The connecting plate 503 is detachably connected to the mounting plate 13, and the connecting plate 503 is fixedly connected to the mounting plate 13 by bolts. The length of the assembly groove 1301 is greater than the length of the connecting plate, so as to reserve operating space for users to disassemble and assemble the mounting frame 5 and replace the synchronous belt 4.

[0040] refer to Figure 6 There is another embodiment of the transmission member 12 and the two driving members 10. The driving device 6 is a servo motor, the transmission member 12 is a disc structure, the driving member 10 is fixedly connected to the transmission member 12, and the driving device 6 drives the transmission member 12 to rotate so that the two driving members 10 move in a circular motion along the circumference of the transmission member 12, and the two tensioning components 11 move in a circular motion synchronously to tighten the synchronous belt 4.

[0041] Embodiment 2:

[0042] refer to Figure 7 , Figure 8 , Fig. 9 , which is different from the first embodiment, both sides of the shell 1 are fixedly connected with connecting frames 18, and the two connecting frames 18 are respectively located on both sides of the observation window 104. The connecting frame 18 is an L-shaped plate structure, and the connecting frame 18 is provided with an avoidance groove 1802 to avoid the blocking part 103. A baffle 1801 is provided on the side wall of the connecting frame 18 away from the shell 1, and a side slide groove 19 is formed between the baffle 1801 and the connecting frame 18. A mounting bolt 20 is installed on the connecting frame 18 relative to the side slide groove 19, which is used to connect the shell 1 to the ship so that the staff can dock the connecting flange 202 with the main shaft of the ship.

[0043] A locking block 21 is provided on one side of the side slide groove 19, and a lock core 22 is provided on the locking block 21. The side slide groove 19 is slidably connected with a protective cover 23. One side of the protective cover 23 corresponds to the locking block 21 and is opened, and the other side of the protective cover 23 is closed. The protective cover 23 cooperates with the locking block 21 and locks the two through the lock core 22. The lock core 22 can be a key lock or a fingerprint lock to prevent non-professionals from disassembling it at will.

[0044] Side viewing windows 24 are provided on opposite sides of the two connecting frames 18, and the two side viewing windows 24 correspond to the tensioning assembly 11 above the synchronous belt 4 and the tensioning assembly 11 below the synchronous belt 4, respectively. The side viewing windows 24 penetrate the side wall of the shell 1, and the part of the side viewing windows 24 extending into the shell 1 is provided with a perspective plate 25, so that the user can observe the displacement of the corresponding tensioning assembly 11 from a side viewing angle.

[0045] Of course, the above are only typical examples of the present invention. In addition, the present invention may also have many other specific implementations. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A tensioning device for a ship shaft generator, characterized in that: The invention comprises a housing (1), a connecting shaft (2) arranged inside the housing (1) and a generator body (3); the generator body (3) is provided with an input shaft (301); the connecting shaft (2) and the input shaft (301) are arranged side by side, and the two are rotatably connected to a driving pulley (201) and a driven pulley (302), respectively; a synchronous belt (4) is sleeved between the driving pulley (201) and the driven pulley (302); The housing (1) is provided with a mounting frame (5), a driving device (6), and a controller (7); a speed measuring pulley (8) is rotatably connected to the mounting frame (5); the speed measuring pulley (8) is sleeved on the inner wall of the synchronous belt (4); a speed measuring device (9) for detecting the rotation speed of the speed measuring pulley (8) is provided on the mounting frame (5); the driving device (6) and the speed measuring device (9) are both connected to and controlled by the controller (7); The opposite sides of the speed measuring pulley (8) respectively support the inner walls of the opposite sides of the synchronous belt (4); The speed measuring pulley (8) is rotatably connected to a transmission member (12), the transmission member (12) is provided with two driving members (10), a tensioning assembly (11) is provided on the driving member (10), the two tensioning assemblies (11) are respectively located above and below the synchronous belt (4), the tensioning assembly (11) comprises a tensioning pulley (111), the tensioning pulley (111) abuts against the outer wall of the synchronous belt (4), the output end of the driving device (6) is connected to the transmission member (12) for driving the transmission member (12) to rotate relative to the speed measuring pulley (8); A bearing (1201) is arranged in the middle of the transmission member (12), and the outer ring of the bearing (1201) is fixedly connected to the transmission member (12). The two sides of the speed measuring pulley (8) are respectively coaxially arranged with a first rotating shaft (801) and a second rotating shaft (802), the first rotating shaft (801) is rotatably connected to the mounting frame (5), and the second rotating shaft (802) is sleeved on the inner ring of the bearing (1201). The output end of the driving device (6) is coaxially arranged with the transmission member (12), and a partition frame (16) is arranged between the output end of the driving device (6) and the transmission member (12); Both sides of the shell (1) are fixedly connected with a connecting frame (18), the connecting frame (18) is an L-shaped plate structure, a baffle (1801) is arranged on the side wall of the connecting frame (18) away from the shell (1), a side slide groove (19) is formed between the baffle (1801) and the connecting frame (18), a mounting bolt (20) is installed at a position of the connecting frame (18) relative to the side slide groove (19), a locking block (21) is arranged on one side of the side slide groove (19), a lock core (22) is arranged on the locking block (21), a protective cover (23) is slidably connected to the side slide groove (19), one side of the protective cover (23) corresponds to the locking block (21) and is opened, and the other side of the protective cover (23) is closed, the protective cover (23) cooperates with the locking block (21) and locks the two through the lock core (22).

2. A tensioning device for a ship shaft generator according to claim 1, characterized in that: The housing (1) is provided with a mounting plate (13) inside, the generator body (3), the driving device (6), and a support frame (14) for rotationally connecting the connecting shaft (2) are fixedly connected to the mounting plate (13) in sequence, and a power storage device (15) is provided at a position of the mounting plate (13) close to the driving device (6), the tension pulley (111) is a power generation wheel, and the generator body (3) and the tension pulley (111) are both electrically connected to the power storage device (15).

3. A tensioning device for a ship shaft generator according to claim 2, characterized in that: The mounting plate (13) and the bottom plate of the shell (1) are arranged parallel to each other and at intervals to form a cavity (101); the shell (1) is penetrated by a drainage hole (102) connected to the cavity (101); a plug (103) is detachably connected to the drainage hole (102).

4. A tensioning device for a ship shaft generator according to claim 2, characterized in that: The tensioning assembly (11) further comprises a bracket (113) and a separation roller (112); the tensioning pulley (111) is rotatably connected to the bracket (113), and the separation roller (112) is rotatably connected to the driving member (10).

5. A tensioning device for a ship shaft generator according to claim 4, characterized in that: The driving device (6) is a servo motor, the transmission member (12) is a gear structure, the driving member (10) is slidably connected to the mounting frame (5), and rack segments (1001) meshing with the transmission member (12) are provided on opposite sides of the two driving members (10).

6. A tensioning device for a ship shaft generator according to claim 5, characterized in that: The mounting frame (5) is provided with two guide rods (501) arranged opposite to each other, and the bracket (113) cooperates with the corresponding driving member (10) to form an L-shaped frame structure, and the L-shaped frame structure is in abutment with the guide rods (501).

7. A tensioning device for a ship shaft generator according to claim 6, characterized in that: The guide rod (501) is provided with a guide rail portion (502) extending along its height direction, and the bracket (113) is slidably connected to the corresponding guide rail portion (502).

8. The tensioning device for a ship shaft generator according to claim 6, characterized in that: The mounting frame (5) is detachably connected to the bottom plate of the shell (1); the mounting plate (13) is provided with an assembly groove (1301) for accommodating the mounting frame (5); the two guide rods (501) are both in contact with the inner groove wall of the assembly groove (1301); a connecting plate (503) is provided between the two guide rods (501); and the connecting plate (503) is detachably connected to the mounting plate (13).

9. A tensioning device for a ship shaft generator according to claim 4, characterized in that: The driving device (6) is a servo motor, the transmission member (12) is a disc structure, and the driving member (10) is fixedly connected to the transmission member (12).

Images