High-strength marine shaft structure

Abstract

The utility model relates to the technical field of marine shafts, in particular to a high-strength marine shaft structure which comprises a shaft sleeve, a solid shaft rod is connected to the surface of the shaft sleeve in a sliding mode, a connecting shaft column is fixedly connected to the surface of the shaft sleeve and the surface of the solid shaft rod, and a connecting assembly is fixedly connected to the surface of the connecting shaft column. An adjusting mechanism is arranged on the surface of the shaft sleeve, the adjusting mechanism comprises a supporting inner disc, the supporting inner disc is fixedly connected to the inner surface of the shaft sleeve, and an adjusting screw rod is rotationally connected to the surface of the supporting inner disc. According to the marine intermediate shaft, the distance between the shaft sleeve and the solid shaft rod is changed, so that the length of the shaft body of the marine intermediate shaft is changed, the installation of the marine intermediate shaft is prevented from being limited by the length and the space, the normal installation of the marine intermediate shaft is guaranteed, and the adaptability of the marine intermediate shaft is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of marine shaft, concretely to a high -strength marine shaft structure. BACKGROUND

[0002] The marine intermediate shaft is one kind of high -strength marine shaft structure, and is an important component in the marine propulsion system, which is located between the gear box and the tail shaft, and mainly functions to transmit power. In a multi -shaft propulsion system, the intermediate shaft can transmit power from the gear box to one or more tail shafts, and each tail shaft is connected to a corresponding propeller. In order to adapt to the environment at sea, the marine intermediate shaft is usually made of high -strength material.

[0003] The intermediate shaft of the marine intermediate shaft is usually a long tubular structure, and the two ends have connecting flanges to connect with the gear box and the tail shaft. The existing marine intermediate shaft has a fixed length and cannot be adjusted in length, which is limited by space and length during installation, causing difficulties or impossibility in installing the marine intermediate shaft, greatly reducing the adaptability of the marine intermediate shaft. SUMMARY

[0004] The utility model discloses a kind of high -strength marine shaft structures, to solve the problem that the existing marine intermediate shaft length is fixed in the background technology described above, cannot be adjusted in length, it is limited by space and length during installation, causing difficulties or impossibility in installing the marine intermediate shaft, greatly reducing the adaptability of the marine intermediate shaft.

[0005] To achieve the above object, the utility model provides the following technical scheme, a kind of high -strength marine shaft structure: including axle sleeve, the surface of the axle sleeve is slidably connected with solid shaft rod, the surface of the axle sleeve and solid shaft rod is fixedly connected with connecting shaft column, the surface of the connecting shaft column is fixedly connected with connecting assembly, the surface of the axle sleeve is provided with adjusting mechanism, the adjusting mechanism includes support inner disc, the support inner disc is fixedly connected in the inner surface of axle sleeve, the surface of the support inner disc is rotatably connected with adjusting screw rod, one end of the adjusting screw rod is fixedly connected with first bevel gear, the other end of the adjusting screw rod is threadedly connected on solid shaft rod, the surface of the axle sleeve is rotatably connected with second bevel gear, the surface of the second bevel gear is fixedly connected with driving turntable, the surface of the axle sleeve is fixedly connected with clamping rod, the surface of the clamping rod is slidably connected in solid shaft rod.

[0006] Preferably, the surface of the connecting shaft column is provided with a cooling mechanism, the cooling mechanism comprises a limiting ring, the limiting ring is fixedly connected on the surface of the connecting shaft column, a mounting ring is sleeved on the surface of the connecting shaft column, cooling fan blades are fixedly connected on the surface of the mounting ring, a fixing nut is fixedly connected on the surface of the mounting ring, and a limiting bolt is threadedly connected on the surface of the fixing nut.

[0007] Preferably, the surface of the solid shaft rod is provided with a plurality of guide grooves, the clamping rods are provided in a plurality of groups and are slidably connected on the guide grooves of the solid shaft rod, and the adjusting screw rod rotates on the inner surface of the shaft sleeve through the supporting inner disc.

[0008] Preferably, the surface of the solid shaft rod is provided with a threaded groove, the adjusting screw rod is threadedly connected on the threaded groove of the solid shaft rod, and the adjusting screw rod drives the solid shaft rod to slide in the shaft sleeve by rotating on the threaded groove of the solid shaft rod.

[0009] Preferably, the first bevel gear and the second bevel gear are in mesh with each other, the second bevel gear is driven to rotate by the driving turntable, and the second bevel gear drives the adjusting screw rod to rotate in the shaft sleeve through the first bevel gear.

[0010] Preferably, the diameter of the limiting ring is greater than that of the mounting ring, the mounting ring is in contact with the surface of the limiting ring, and a plurality of circular holes are formed in the surface of the limiting ring.

[0011] Preferably, the fixing nut is provided in a plurality of groups and is uniformly distributed on the surface of the mounting ring, and the limiting bolt is threadedly connected through the threaded hole of the limiting ring and the fixing nut.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1、The ship shaft drives the second bevel gear to rotate through the driving turntable, drives the adjusting screw rod to rotate on the supporting inner disc through the first bevel gear, and drives the solid shaft rod to slide on the shaft sleeve through the rotation of the adjusting screw rod on the threaded hole of the solid shaft rod, so that the clamping rod also slides on the guide groove of the solid shaft rod, the transmission between the shaft sleeve and the solid shaft rod is guaranteed, the distance between the shaft sleeve and the solid shaft rod is changed, the length of the shaft body of the marine intermediate shaft is changed, the installation of the marine intermediate shaft is not limited by the length and space, the normal installation of the marine intermediate shaft is guaranteed, and the adaptability of the marine intermediate shaft is improved.

[0014] 2、The marine shaft, the mounting ring is connected on the surface of the connecting shaft column, the mounting ring is connected on the surface of the limiting ring, the limiting bolt is penetrated through the circular hole of the limiting ring and the fixed nut is screwed, the limiting ring limits the position of the fixed nut on the connecting shaft column through the limiting bolt, the fixed nut limits the position of the cooling fan blade on the connecting shaft column through the mounting ring, so that the cooling fan blade can rotate synchronously with the connecting shaft column, the cooling fan blade cools the overheated parts near the marine intermediate shaft through rotation, and overheating of the nearby parts is avoided to cause equipment damage. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure front view solid schematic diagram of the utility model;

[0016] Figure 2 It is a structure front view solid schematic diagram of the utility model;

[0017] Figure 3 It is a structure front view solid schematic diagram of the utility model Figure 1 It is an enlarged structure schematic diagram of A in the utility model;

[0018] Figure 4 It is an enlarged structure schematic diagram of B in the utility model Figure 2 It is an enlarged structure schematic diagram of B in the utility model

[0019] Figure 5 It is a back view solid schematic diagram of the utility model connecting structure of the shaft sleeve and the solid shaft rod.

[0020] In the figure: 1, shaft sleeve; 11, solid shaft rod; 12, connecting shaft column; 13, connecting assembly; 2, supporting inner disc; 21, adjusting screw rod; 22, first bevel gear; 23, second bevel gear; 24, driving turntable; 25, clamping rod; 3, limiting ring; 31, mounting ring; 32, cooling fan blade; 33, fixed nut; 34, limiting bolt. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figures 1-5 An embodiment provided by the utility model:

[0023] The utility model provides a high -strength marine shaft structure: including the sleeve 1, the surface of sleeve 1 is slidably connected with solid axle rod 11, the surface of sleeve 1 and solid axle rod 11 is fixedly connected with connecting axle column 12, the surface of connecting axle column 12 is fixedly connected with connecting assembly 13, is provided with flange plate for and gear box and stern shaft are connected on connecting assembly 13, the surface of sleeve 1 is provided with adjusting mechanism, and adjusting mechanism includes support inner disc 2, and support inner disc 2 is fixedly connected in the inner surface of sleeve 1, the surface of support inner disc 2 is rotatably connected with adjusting screw rod 21, and one end of adjusting screw rod 21 is fixedly connected with first bevel gear 22, and the other end of adjusting screw rod 21 is threadedly connected on solid axle rod 11, the surface of sleeve 1 is rotatably connected with second bevel gear 23, and the surface of second bevel gear 23 is fixedly connected with drive turntable 24, the surface of sleeve 1 is fixedly connected with clamping rod 25, and clamping rod 25 is slidably connected on the surface of solid axle rod 11, and the sleeve 1 and solid axle rod 11 are the shaft body part of marine intermediate shaft, and the adjusting mechanism can adjust the length of the shaft body of marine intermediate shaft, avoid the installation of marine intermediate shaft to be limited by length and space, guarantee that the marine intermediate shaft can normally install, improve the adaptability of marine intermediate shaft.

[0024] Further, the surface of the connecting axle column 12 is provided with a cooling mechanism, the cooling mechanism includes a limiting ring 3, the limiting ring 3 is fixedly connected to the surface of the connecting axle column 12, the surface of the connecting axle column 12 is sleeved with a mounting ring 31, the surface of the mounting ring 31 is fixedly connected with a cooling fan blade 32, the surface of the mounting ring 31 is fixedly connected with a fixed nut 33, and the surface of the fixed nut 33 is threadedly connected with a limiting bolt 34. The cooling mechanism utilizes the rotation of the marine intermediate shaft to drive the cooling fan blade 32 to rotate, thereby cooling the components near the marine intermediate shaft, avoiding overheating of the nearby components causing equipment damage.

[0025] Further, a plurality of guide grooves are formed on the surface of the solid axle rod 11, and a plurality of clamping rods 25 are provided and slidably connected to the guide grooves of the solid axle rod 11. During rotation of the sleeve 1, the plurality of clamping rods 25 drive the solid axle rod 11 to rotate, thereby ensuring synchronous transmission of the sleeve 1 and the solid axle rod 11. The adjusting screw rod 21 rotates on the inner surface of the sleeve 1 through the support inner disc 2, and the adjusting screw rod 21 is located at the inner center position of the sleeve 1.

[0026] Further, a threaded groove is formed on the surface of the solid axle rod 11, and the adjusting screw rod 21 is threadedly connected to the threaded groove of the solid axle rod 11. The adjusting screw rod 21 drives the solid axle rod 11 to slide in the sleeve 1 by rotating in the threaded groove of the solid axle rod 11, thereby changing the distance between the sleeve 1 and the solid axle rod 11 and further changing the length of the shaft body of the marine intermediate shaft.

[0027] Further, the first bevel gear 22 and the second bevel gear 23 are engaged with each other, the second bevel gear 23 is driven to rotate through the driving turntable 24, the second bevel gear 23 drives the adjusting screw 21 to rotate in the shaft sleeve 1 through the first bevel gear 22, so that the rotation in the adjusting screw 21 is realized, and the outer surface of the driving turntable 24 is a plurality of limiting grooves for connecting the driving device, since the driving turntable 24 is difficult to drive, the limiting grooves on the surface of the driving turntable 24 are used to connect the driving device, so that the driving turntable 24 is driven to rotate, and then the second bevel gear 23 can drive the first bevel gear 22 to rotate in the shaft sleeve 1.

[0028] Further, the diameter of the limiting ring 3 is greater than the diameter of the mounting ring 31, the mounting ring 31 is connected to the surface of the limiting ring 3, the limiting ring 3 limits the position of the mounting ring 31 on the connecting shaft column 12, a plurality of circular holes are arranged on the surface of the limiting ring 3, and the circular holes are evenly distributed in a ring shape on the limiting ring 3.

[0029] Further, a plurality of fixed nuts 33 are arranged on the surface of the mounting ring 31, and the limiting bolts 34 are screwed into the solid shaft rod 11 through the threaded holes of the limiting ring 3 and the fixed nuts 33, the solid shaft rod 11 drives the limiting ring 3 to rotate through the connecting shaft column 12, the limiting ring 3 drives the mounting ring 31 to rotate through the fixed nuts 33 and the limiting bolts 34, and the mounting ring 31 drives the cooling fan blade 32 to rotate, so that the accessory overheating component is cooled, and the overheating of the nearby components is avoided to cause the damage of the equipment.

[0030] Working principle: the driving device is connected to the limiting grooves on the outer surface of the driving turntable 24 outside the shaft sleeve 1, so that the output end of the driving device is connected to the limiting grooves on the driving turntable 24, the second bevel gear 23 is driven to rotate through the driving turntable 24, the second bevel gear 23 drives the adjusting screw 21 to rotate on the supporting inner disc 2 through the first bevel gear 22, the adjusting screw 21 rotates on the threaded hole of the solid shaft rod 11, so that the solid shaft rod 11 slides on the shaft sleeve 1, and the clamping rod 25 also slides on the guide groove of the solid shaft rod 11, the clamping rod 25 guarantees the transmission between the shaft sleeve 1 and the solid shaft rod 11, the distance between the shaft sleeve 1 and the solid shaft rod 11 is changed, the length of the shaft body of the marine intermediate shaft is changed, the installation of the marine intermediate shaft is not limited by the length and space, the normal installation of the marine intermediate shaft is guaranteed, and the adaptability of the marine intermediate shaft is improved.

[0031] The mounting ring 31 is sleeved on the surface of the connecting shaft column 12, so that the mounting ring 31 contacts the surface of the limiting ring 3, then the limiting bolt 34 is penetrated through the circular hole of the limiting ring 3 and the fixing nut 33 is threadedly connected, the limiting ring 3 limits the position of the fixing nut 33 on the connecting shaft column 12 through the limiting bolt 34, and the fixing nut 33 limits the position of the cooling fan blade 32 on the connecting shaft column 12 through the mounting ring 31, so that the cooling fan blade 32 can rotate synchronously with the connecting shaft column 12, the cooling fan blade 32 can cool the overheated parts near the marine intermediate shaft through rotation, and overheating of the nearby parts can be avoided to prevent equipment damage.

[0032] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A high strength marine shaft structure, characterized by: The utility model provides a kind of cooling mechanism for solid axle, including sleeve (1), the surface of the sleeve (1) is slidably connected with solid axle rod (11), the surface of the sleeve (1) and solid axle rod (11) is fixedly connected with connecting shaft column (12), the surface of the connecting shaft column (12) is fixedly connected with connecting assembly (13), the surface of the sleeve (1) is provided with adjusting mechanism, the adjusting mechanism includes support inner disc (2), the inner surface of the sleeve (1) is fixedly connected with support inner disc (2), the surface of the support inner disc (2) is rotatably connected with adjusting screw (21), one end of the adjusting screw (21) is fixedly connected with first bevel gear (22), the other end of the adjusting screw (21) is threadedly connected on solid axle rod (11), the surface of the sleeve (1) is rotatably connected with second bevel gear (23), the surface of the second bevel gear (23) is fixedly connected with driving turntable (24), the surface of the sleeve (1) is fixedly connected with clamping rod (25), the surface of the clamping rod (25) is slidably connected on solid axle rod (11).

2. A high strength marine shaft structure according to claim 1, characterized in that: The surface of the connecting shaft column (12) is provided with cooling mechanism, the cooling mechanism includes limiting ring (3), the surface of the connecting shaft column (12) is fixedly connected with limiting ring (3), the surface of the connecting shaft column (12) is sleeved with mounting ring (31), the surface of the mounting ring (31) is fixedly connected with cooling fan blade (32), the surface of the mounting ring (31) is fixedly connected with fixed nut (33), the surface of the fixed nut (33) is threadedly connected with limiting bolt (34).

3. A high strength marine shaft structure according to claim 1, wherein: The surface of the solid axle rod (11) is provided with multiple groups of guide grooves, the clamping rod (25) is provided with multiple groups, and the clamping rod (25) is slidably connected on the guide groove of the solid axle rod (11), the adjusting screw (21) is rotated on the inner surface of the sleeve (1) through the support inner disc (2).

4. A high strength marine shaft structure according to claim 3, wherein: The surface of the solid axle rod (11) is provided with threaded groove, the adjusting screw (21) is threadedly connected on the threaded groove of the solid axle rod (11), the adjusting screw (21) drives the solid axle rod (11) to slide in the sleeve (1) by rotating on the threaded groove of the solid axle rod (11).

5. A high strength marine shaft structure according to claim 4, wherein: The first bevel gear (22) and the second bevel gear (23) are engaged with each other, the second bevel gear (23) is driven to rotate by the driving turntable (24), the second bevel gear (23) drives the adjusting screw (21) to rotate in the sleeve (1) through the first bevel gear (22).

6. A high strength marine shaft structure according to claim 2, wherein: The diameter of the limiting ring (3) is greater than the diameter of the mounting ring (31), the mounting ring (31) is connected on the surface of the limiting ring (3), and multiple groups of circular holes are formed in the surface of the limiting ring (3).

7. A high strength marine shaft structure according to claim 6, characterized in that: The fixed nut (33) is provided with multiple groups, and is evenly distributed on the surface of the mounting ring (31), the limiting bolt (34) is threadedly connected through the threaded hole of the limiting ring (3) and the fixed nut (33).

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