Metal shaft fixing device for ship tail shaft machining

Abstract

The utility model discloses a metal shaft fixing device for ship stern shaft machining, which relates to the technical field of shaft machining and comprises a mounting frame, a fixed plate and a movable plate, the fixed plate and the movable plate are respectively distributed at two ends of the top of the mounting frame, the fixed plate is fixedly connected to the top of the mounting frame, and the movable plate is slidably connected to the top of the mounting frame. The worm is driven to rotate in the two positioning blocks by controlling the rotation of the turntable, and in the process, the outer side of the worm is effectively meshed with a worm gear structure formed by a plurality of gear teeth, so that the driving block is promoted to drive the driving groove and the driving disc to rotate through the gear teeth, and when the driving groove and the driving disc start to rotate, the worm is driven to rotate. The driving groove drives the sliding strip to stably slide in the inner wall of the sliding groove, so that the moving block generates displacement between the relative positions of the driving groove and the second supporting plate, the shaft neck is stably fixed through close fit of the fixing block and the shaft neck, and the device can flexibly adapt to and fix shaft necks with different diameters.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft processing, in particular to a metal shaft fixing device for processing a ship stern shaft. Background Art

[0002] The stern shaft of a ship is the rotating shaft connecting the propulsion device and the engine, which is responsible for transmitting the power generated by the engine to the propeller to propel the ship forward. The stern shaft is usually located at the tail of the ship, so it is called the stern shaft.

[0003] For example, a transmission shaft fixing tool with the publication number CN220128579U includes a base, a slide groove 1 is provided at the upper end of the base, an adjustment component is provided in the sliding sleeve of the slide groove 1, a pressure plate is connected to the upper end of the adjustment component, a direction-changing mechanism is connected to one side of the pressure plate, and a fixing component is connected between the pressure plate and the base. Beneficial effect: through the setting of the adjustment component in the slide groove 1, when the pressure plate is pressed down, the pressure plate drives the spiral rod to slide in the slide groove 1, so that the pressure plate can quickly clamp the transmission shaft, and the transmission shaft vibrates during processing, which will generate a force on the fixing component to separate the fixing component, and when the fixing component is moved upward by the force, it will drive the pressure plate to move up, thereby pulling up the spiral rod to move up in the slide groove 1, so that the ball bearing drives the spiral rod to rotate when rolling in the spiral groove, and the roller in the direction-changing mechanism is contacted and squeezed with the inner wall of the groove 1, thereby preventing the spiral rod from rotating.

[0004] The above-mentioned comparative document drives the spiral rod to clamp the transmission shaft through the pressure plate to avoid vibration affecting the fixation. In the prior art, in order to ensure the stability and accuracy of the shaft during processing, the shaft necks at both ends of the rotating shaft need to be firmly fixed. In view of the different sizes of the shafts and the different diameters of the shaft necks, it is necessary to adapt the corresponding size of the clamps for fixation. Utility Model Content

[0005] The utility model aims to provide a metal shaft fixing device for ship stern shaft processing, so as to solve the problem in the above background technology that due to the different shaft body sizes and journal diameters, a clamp of corresponding size needs to be adapted for fixing.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: A metal shaft fixing device for ship stern shaft processing, comprising a mounting frame, a fixing plate, and a movable plate, wherein the fixing plate and the movable plate are respectively distributed at two ends of the top of the mounting frame, and the fixing plate is fixedly connected to the top of the mounting frame, and the movable plate is slidably connected to the top of the mounting frame;

[0007] The top of the fixed plate and the movable plate are both provided with a fixed structure, the fixed structure is provided with a mounting block, and the top of the mounting block is fixedly connected to two first support plates, and the two first support plates are fixedly connected to positioning blocks at both ends, the positioning blocks are provided with openings, and the openings are rotatably connected to a worm. A rotating disk is fixedly connected to the end of the worm, the top of the mounting block is fixedly connected to a second support plate on the side away from the first support plate, and the second support plate is provided with a slide groove, and a driving assembly is rotatably connected between the first support plate and the second support plate;

[0008] An adjusting structure for adjusting the distance between the fixed plate and the movable plate is arranged inside the installation frame.

[0009] Furthermore, mutually aligned openings are provided in the middle of the first support plate and the second support plate, the slide groove is in a hexagonal structure, and the slide groove is located outside the opening of the second support plate.

[0010] Furthermore, the drive assembly is provided with a positioning plate, a driving plate is fixedly connected to one side of the positioning plate, and gear teeth are provided on the outer side of the connection between the positioning plate and the driving plate, the positioning plate and the driving plate are provided with openings aligned with each other inside, and the gear teeth are centrally symmetrically distributed between the positioning plate and the driving plate, and a plurality of centrally symmetrically distributed gear teeth form a worm gear.

[0011] Furthermore, six driving grooves are provided on the side of the positioning plate away from the driving plate, and the six driving grooves are symmetrically distributed on one side of the positioning plate. The positioning plate is located between the first support plate and the second support plate, and the driving plate is located on the outside of the first support plate, and the worm wheel formed by the gear teeth is located between the two first support plates, and the worm wheel formed by the gear teeth is meshed with the outside of the worm.

[0012] Furthermore, a moving block is slidably connected between the driving slot and the second support plate, a driving block is fixedly connected to one side of the moving block, and a sliding bar is fixedly connected to the corner of the moving block away from the driving block, a fixed block is fixedly connected to the end of the moving block, and six moving blocks are provided, and the six moving blocks are symmetrically distributed between the driving slot and the second support plate.

[0013] Furthermore, the slide bar is slidably connected to the inside of the slide groove, and the driving block is slidably connected to the inside of the driving groove, and the fixing block is made of rubber material.

[0014] Furthermore, the adjustment structure is provided with a screw sleeve, and the screw sleeve is fixedly connected to the bottom of the movable plate, and positioning sleeves are fixedly connected on both sides of the bottom of the movable plate, and the two positioning sleeves are located on both sides of the screw sleeve, a screw rod is rotatably connected to the middle of the interior of the installation frame, and the outer side of the screw rod is threadedly connected to the inside of the screw sleeve, and two symmetrically distributed positioning rods are fixedly connected to the interior of the installation frame, and the two positioning rods are respectively slidably connected to the inside of the two positioning sleeves.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The metal shaft fixing device for ship stern shaft processing is provided with a fixing structure. By controlling the rotation of the turntable, the worm is driven to rotate inside the two positioning blocks. During this process, the outer side of the worm is effectively meshed with the worm gear structure composed of multiple gear teeth, thereby prompting the driving block to drive the driving groove and the driving disk to rotate through the gear teeth. When the driving groove and the driving disk start to rotate, the driving groove drives the slide bar to slide stably in the inner wall of the slide groove, thereby causing the moving block to displace between the relative positions of the driving groove and the second support plate. At the same time, the driving block will also slide inside the driving groove. This action will accurately adjust the spacing between the multiple fixing blocks, thereby realizing fine control of the aperture size formed by these fixing blocks. Finally, the fixing block is firmly fixed to the shaft neck through the close cooperation with the shaft neck, so that the device can flexibly adapt to and fix shaft necks of different diameters.

[0017] Furthermore, a stable meshing relationship can be formed between the outer side of the worm and the worm wheel structure composed of a plurality of gear teeth. When the device is stationary, since the worm and the worm wheel composed of a plurality of gear teeth have a self-locking characteristic, when the worm completes the adjustment action of the positioning plate and the driving plate, the gear teeth will be automatically locked, thereby fixing the moving block between the second support plate and the driving groove, ensuring that the plurality of moving blocks remain stable when the driving fixed block fits the shaft neck, thereby enhancing the stability of the device;

[0018] Furthermore, the motor drives the screw rod to rotate, so that it drives the screw sleeve to move on the outside, and then the screw sleeve drives the movable plate to move on the top of the installation frame to adjust the distance between the fixed plate and the movable plate. The control of the distance between the two fixed structures is achieved, thereby ensuring that the device can adapt to and fix shafts of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the first support plate of the utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the second support plate of the utility model;

[0022] Figure 4 This is a schematic diagram of the gear structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the drive slot structure of the utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the motion block of the utility model;

[0025] Figure 7 This is a schematic diagram of the exploded structure of the installation frame of the utility model.

[0026] In the figure: 1. mounting frame; 2. fixed plate; 3. movable plate; 4. mounting block; 5. first support plate; 6. positioning block; 7. worm; 8. turntable; 9. second support plate; 10. slide groove; 11. positioning plate; 12. drive plate; 13. gear teeth; 14. drive groove; 15. moving block; 16. slide bar; 17. drive block; 18. fixed block; 19. screw sleeve; 20. positioning sleeve; 21. positioning rod; 22. screw rod. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In a further preferred embodiment of the present invention, Figure 1 - Figure 6 As shown, a fixed structure is provided on the top of the fixed plate 2 and the movable plate 3, and a mounting block 4 is provided on the fixed structure. Two first support plates 5 are fixedly connected to the top of the mounting block 4, and positioning blocks 6 are fixedly connected to both ends of the two first support plates 5. An opening is provided inside the positioning block 6, and a worm 7 is rotatably connected inside the opening. A turntable 8 is fixedly connected to the end of the worm 7, and a second support plate 9 is fixedly connected to the side of the top of the mounting block 4 away from the first support plate 5, and a slide groove 10 is provided inside the second support plate 9, and a driving component is rotatably connected between the first support plate 5 and the second support plate 9; an adjusting structure for adjusting the distance between the fixed plate 2 and the movable plate 3 is provided inside the mounting frame 1, and mutually aligned openings are provided in the middle of the first support plate 5 and the second support plate 9, and the shape of the slide groove 10 is set to a hexagonal structure, and the slide groove 10 is located outside the opening of the second support plate 9;

[0029] By controlling the rotation of the turntable 8, the worm 7 is driven to rotate inside the two positioning blocks 6. During this process, the outer side of the worm 7 is effectively meshed with the worm gear structure composed of multiple gear teeth 13, thereby prompting the driving block 17 to drive the driving groove 14 and the driving disk 12 to rotate through the gear teeth 13. When the driving groove 14 and the driving disk 12 start to rotate, the driving groove 14 will drive the slide bar 16 to slide stably in the inner wall of the slide groove 10, thereby causing the moving block 15 to be displaced between the relative positions of the driving groove 14 and the second support plate 9. At the same time, the driving block 17 will also slide inside the driving groove 14. This action will accurately adjust the spacing between the multiple fixed blocks 18, thereby realizing fine control of the aperture size formed by these fixed blocks 18. Finally, the fixed block 18 is firmly fixed to the shaft neck through the close cooperation with the shaft neck, so that this device can flexibly adapt to and fix shaft necks of different diameters.

[0030] In a further preferred embodiment of the present invention, Figure 2 - Figure 6 As shown, the drive assembly is provided with a positioning disk 11, a driving disk 12 is fixedly connected to one side of the positioning disk 11, and a gear 13 is provided on the outer side of the connection between the positioning disk 11 and the driving disk 12, and the positioning disk 11 and the driving disk 12 are provided with openings aligned with each other inside, and the gear teeth 13 are centrally symmetrically distributed between the positioning disk 11 and the driving disk 12, and a plurality of centrally symmetrically distributed gear teeth 13 form a worm gear, six driving grooves 14 are provided on the side of the positioning disk 11 away from the driving disk 12, and the six driving grooves 14 are centrally symmetrically distributed on one side of the positioning disk 11, the positioning disk 11 is located between the first support plate 5 and the second support plate 9, and the driving disk 12 is located on the outer side of the first support plate 5, and the gear teeth 13 are centrally symmetrically distributed between the positioning disk 11 and the driving disk 12. The worm wheel formed by the teeth 13 is located between the two first support plates 5, and the worm wheel formed by the gear teeth 13 is meshed with the outer side of the worm 7. A moving block 15 is slidably connected between the driving groove 14 and the second support plate 9. A driving block 17 is fixedly connected to one side of the moving block 15, and a sliding bar 16 is fixedly connected to the corner of the moving block 15 away from the driving block 17. A fixed block 18 is fixedly connected to the end of the moving block 15, and six moving blocks 15 are provided, and the six moving blocks 15 are symmetrically distributed between the driving groove 14 and the second support plate 9. The sliding bar 16 is slidably connected to the inside of the sliding groove 10, and the driving block 17 is slidably connected to the inside of the driving groove 14, and the fixed block 18 is made of rubber material.

[0031] The outer side of the worm 7 and the worm wheel structure composed of a plurality of gear teeth 13 can form a stable meshing relationship. When the device is in a stationary state, since the worm 7 and the worm wheel composed of a plurality of gear teeth 13 have a self-locking characteristic, when the worm 7 completes the adjustment action of the positioning plate 11 and the driving plate 12, the gear teeth 13 will automatically lock, thereby fixing the moving block 15 between the second support plate 9 and the driving groove 14, ensuring that the plurality of moving blocks 15 remain stable when the driving fixed block 18 is fitted with the shaft neck, thereby enhancing the stability of the device;

[0032] In a further preferred embodiment of the present invention, Figure 7 As shown, the adjustment structure is provided with a screw sleeve 19, and the screw sleeve 19 is fixedly connected to the bottom of the movable plate 3, and the two sides of the bottom of the movable plate 3 are fixedly connected with positioning sleeves 20, and the two positioning sleeves 20 are located on both sides of the screw sleeve 19, and the middle of the installation frame 1 is rotatably connected with a screw rod 22, and the outer side of the screw rod 22 is threadedly connected to the inside of the screw sleeve 19, and the installation frame 1 is fixedly connected with two symmetrically distributed positioning rods 21, and the two positioning rods 21 are respectively slidably connected to the inside of the two positioning sleeves 20;

[0033] The motor drives the screw rod 22 to rotate, so that it drives the screw sleeve 19 to move outside, and then the screw sleeve 19 drives the movable plate 3 to move on the top of the installation frame 1 to adjust the distance between the fixed plate 2 and the movable plate 3. The control of the distance between the two fixed structures is realized, so as to ensure that the device can adapt to and fix shafts of different lengths. When the distance between the two fixed structures is adjusted to an appropriate value, the shaft is placed therebetween, and then the journals at both ends of the shaft are respectively installed into the holes formed by the multiple fixed blocks 18 inside the two fixed structures, so as to achieve a stable fixation of the shaft.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A metal shaft fixing device for ship stern shaft processing, comprising a mounting frame (1), a fixing plate (2), and a movable plate (3), wherein the fixing plate (2) and the movable plate (3) are respectively distributed at two ends of the top of the mounting frame (1), and the fixing plate (2) is fixedly connected to the top of the mounting frame (1), and the movable plate (3) is slidably connected to the top of the mounting frame (1); Features: The tops of the fixed plate (2) and the movable plate (3) are both provided with a fixed structure, the fixed structure is provided with a mounting block (4), and the top of the mounting block (4) is fixedly connected to two first support plates (5), and both ends of the two first support plates (5) are fixedly connected to positioning blocks (6), the positioning blocks (6) are provided with openings, and a worm (7) is rotatably connected to the opening, and a turntable (8) is fixedly connected to the end of the worm (7), a second support plate (9) is fixedly connected to the side of the top of the mounting block (4) away from the first support plate (5), and a slide groove (10) is provided in the second support plate (9), and a driving assembly is rotatably connected between the first support plate (5) and the second support plate (9); An adjustment structure for adjusting the distance between the fixed plate (2) and the movable plate (3) is provided inside the installation frame (1).

2. The metal shaft fixing device for ship stern shaft processing according to claim 1, characterized in that: The first support plate (5) and the second support plate (9) are both provided with openings aligned with each other in the middle, the slide groove (10) is in the shape of a hexagonal structure, and the slide groove (10) is located outside the opening of the second support plate (9).

3. The metal shaft fixing device for ship stern shaft processing according to claim 2, characterized in that: The drive assembly is provided with a positioning disk (11), one side of the positioning disk (11) is fixedly connected to a driving disk (12), and gear teeth (13) are provided on the outer side of the connection between the positioning disk (11) and the driving disk (12), the positioning disk (11) and the driving disk (12) are both provided with mutually aligned openings inside, and the gear teeth (13) are centrally symmetrically distributed between the positioning disk (11) and the driving disk (12), and a plurality of centrally symmetrically distributed gear teeth (13) form a worm gear.

4. The metal shaft fixing device for ship stern shaft processing according to claim 3 is characterized in that: Six driving grooves (14) are provided on a side of the positioning plate (11) away from the driving plate (12), and the six driving grooves (14) are centrally symmetrically distributed on one side of the positioning plate (11); the positioning plate (11) is located between the first support plate (5) and the second support plate (9); the driving plate (12) is located outside the first support plate (5); and a worm wheel formed by the gear teeth (13) is located between the two first support plates (5); and the worm wheel formed by the gear teeth (13) is meshed with the outside of the worm (7).

5. The metal shaft fixing device for ship stern shaft processing according to claim 4, characterized in that: A moving block (15) is slidably connected between the driving groove (14) and the second support plate (9); a driving block (17) is fixedly connected to one side of the moving block (15); a sliding bar (16) is fixedly connected to a corner of the moving block (15) away from the driving block (17); a fixed block (18) is fixedly connected to an end of the moving block (15); six moving blocks (15) are provided, and the six moving blocks (15) are centrally symmetrically distributed between the driving groove (14) and the second support plate (9).

6. The metal shaft fixing device for ship stern shaft processing according to claim 5, characterized in that: The slide bar (16) is slidably connected to the inside of the slide groove (10), the drive block (17) is slidably connected to the inside of the drive groove (14), and the fixed block (18) is made of rubber material.

7. The metal shaft fixing device for ship stern shaft processing according to claim 6, characterized in that: The adjustment structure is provided with a screw sleeve (19), and the screw sleeve (19) is fixedly connected to the bottom of the movable plate (3), and positioning sleeves (20) are fixedly connected to both sides of the bottom of the movable plate (3), and the two positioning sleeves (20) are located on both sides of the screw sleeve (19), a screw rod (22) is rotatably connected to the middle of the interior of the installation frame (1), and the outer side of the screw rod (22) is threadedly connected to the interior of the screw sleeve (19), and two symmetrically distributed positioning rods (21) are fixedly connected to the interior of the installation frame (1), and the two positioning rods (21) are respectively slidably connected to the inside of the two positioning sleeves (20).

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