Temporary fixing structure applied to split type installation of crowned tooth coupling of steering oar

Abstract

The utility model relates to the technical field of temporary fixing of couplings, and discloses a steering oar crowned tooth coupling temporary fixing structure applied to split type installation, which comprises a fixing mechanism. An upper gearbox and a steering device are arranged on the ship body; the fixing mechanism comprises a fixing flange and an adjusting bolt; a locking nut is arranged on the adjusting bolt; a driving shaft for jacking the coupler is arranged on the lower gear box; the steering device, the fixing mechanism, the fixing flange, the adjusting bolt and the locking nut are used in cooperation, so that the coupler is positioned, the difficulty of field adjustment is greatly reduced, damage to equipment caused by collision due to position errors is reduced, it can be guaranteed that the coupler can move relatively so as to be adjusted conveniently, and the coupling can be adjusted conveniently. And the coupler is limited near the mounting position so as to ensure the correct connection with the driving shaft, and the coupler is positioned before the lower gearbox is mounted, so that the mounting is simpler and safer.

Description

Technical Field

[0001] The utility model relates to the technical field of temporary fixing of couplings, in particular to a temporary fixing structure for a drum tooth coupling of a rudder propeller applied to split installation. Background Technique

[0002] The rudder propeller device uses a drum tooth coupling to connect the vertical shaft of the upper gearbox and the drive shaft of the lower gearbox. Generally, when the rudder propeller is integrally installed, this connection work is completed in the factory. Before connection, the lower gearbox is placed on the ground first, then the coupling is installed on the drive shaft of the lower gearbox, and then the upper gearbox is lifted. After aligning the vertical shaft with the coupling, it is slowly lowered.

[0003] When split installation is adopted, the upper gearbox and the lower gearbox must be transported separately to the site for assembly.

[0004] Due to the limitation of the hull structure, when split installation is adopted, the upper gearbox must be installed first, and then the coupling is placed on the drive shaft of the lower gearbox. Tools such as hoists are used to assemble the lower gearbox from bottom to top with the vertical shaft. At this time, if the installer is above, the line of sight will be blocked by the upper gearbox and the hull. If the installer is below, the line of sight will be blocked by the lower gearbox. In fact, the installation position becomes a visual blind area, causing difficulties in coupling positioning. In addition, the attitude of the lower gearbox is constantly changing during the rising process, and the coupling is very likely to be inclined on the drive shaft, which is very likely to collide with the vertical shaft and cause damage to the equipment. Especially when the rudder propeller installation plane is not horizontal, the coupling installation will be more difficult. Therefore, a temporary fixing structure for a drum tooth coupling of a rudder propeller applied to split installation needs to be proposed. Content of the Utility Model

[0005] (I) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the utility model provides a temporary fixing structure for a drum tooth coupling of a rudder propeller applied to split installation, which can solve the technical problems raised in the background technique.

[0007] (II) Technical Solutions

[0008] The present utility model is realized by the following technical solutions: A temporary fixing structure for a drum tooth coupling of a rudder and propeller applied to split installation, which is applied to a steering gear and a lower gearbox, includes: a fixing mechanism detachably arranged on the steering gear; wherein, the steering gear can be externally connected to the hull; the upper gearbox is detachably fixed on the hull; the lower gearbox can be aligned and connected with the steering gear; the above-mentioned coupling is installed on the upper gearbox; the fixing mechanism includes a fixing flange fixedly connected to one end of the coupling and several groups of adjusting bolts detachably installed on the steering gear, the side surfaces of the bolt heads of several groups of the adjusting bolts are all in the same horizontal plane, a locking nut connected to the steering gear is arranged on the adjusting bolt, and the side surface of the bolt head of the adjusting bolt, the bottom surface of the fixing flange and the axis of the coupling are perpendicular; the bolt head of the adjusting bolt is in plane contact with the fixing flange; a driving shaft for jacking up the coupling is arranged on the lower gearbox.

[0009] Preferably, the fixing flange is assembled on the coupling by a hot-fitting method.

[0010] Preferably, the upper gearbox and the steering gear can be assembled into one body, assembled into one body in the factory building, and after being transported to the site, the steering gear can be installed on the hull by bolts.

[0011] Preferably, the lower gearbox and the coupling need to be centered during assembly.

[0012] Preferably, the adjusting bolt is rotatably arranged on the steering gear, and the gap between one end of the adjusting bolt and the coupling is set to 0.5 mm.

[0013] Preferably, the lower gearbox is provided with holes aligned with the steering gear, the inner surface of the coupling is provided with a chamfer for auxiliary positioning, and the upper gearbox is provided with an input shaft flange for adjusting the position of the coupling.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the present utility model provides a temporary fixing structure for a drum tooth coupling of a rudder and propeller applied to split installation, and has the following beneficial effects:

[0016] The temporary fixing structure of the drum tooth coupling for split installation of a rudder propeller, through the provided slewing device and fixing mechanism, the fixing flange, adjusting bolt and locking nut are used in combination to position the coupling, greatly reducing the difficulty of on-site adjustment and reducing the damage to the equipment caused by bumps due to incorrect positions. It can ensure that the coupling can move relatively for easy adjustment and is restricted near the installation position to ensure correct connection with the drive shaft. And the coupling is positioned before the installation of the lower gearbox, making the installation simpler and safer; using the side of the bolt head of the adjusting bolt to contact and position the flange, the cost is extremely low; the coupling is positioned at a slightly lower position than normal use, which not only ensures the normal operation and use of the equipment but also ensures that the coupling will not disengage from the vertical shaft during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a partial structural diagram of the present utility model.

[0018] Figure 2 In the present utility model Figure 1 An enlarged view of part A.

[0019] Figure 3 It is a side view structural diagram of the lower gearbox of the present utility model.

[0020] Figure 4 It is a side view structural diagram of the fixing flange and adjusting bolt of the present utility model.

[0021] In the figure: 1, upper gearbox; 2, slewing device; 3, lower gearbox; 4, coupling; 5, fixing flange; 6, adjusting bolt; 7, locking nut; 8, input shaft flange; 9, hull. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, in combination with the drawings and specific embodiments, the present utility model will be further described. It should be noted that on the premise of no conflict, the following described embodiments or technical features can be arbitrarily combined to form new embodiments.

[0023] Embodiment 1: Please refer to Figure 1 - Figure 4, A temporary fixing structure of a drum tooth coupling for split installation in this embodiment is applied to the steering gear 2 and the lower gearbox 3, and is characterized in that it includes: a fixing mechanism detachably arranged on the steering gear 2; wherein, the steering gear 2 can be externally connected to the hull 9; the hull 9 is fixedly provided with a detachable upper gearbox 1; the lower gearbox 3 can be aligned and connected with the steering gear 2; the upper gearbox 1 is installed with the above-mentioned coupling 4; the fixing mechanism includes a fixing flange 5 fixedly connected to one end of the coupling 4 and several groups of adjusting bolts 6 detachably installed on the steering gear 2. The side surfaces of the bolt heads of several groups of adjusting bolts 6 are all in the same horizontal plane. A locking nut 7 connected to the steering gear 2 is provided on the adjusting bolt 6, and the side surface of the bolt head of the adjusting bolt 6, the bottom surface of the fixing flange 5 and the axis of the coupling 4 are perpendicular; the bolt head of the adjusting bolt 6 is in plane contact with the fixing flange 5; the lower gearbox 3 is provided with a driving shaft that jacks up the coupling 4. When the lower gearbox 3 is installed in place, the driving shaft jacks up the coupling 4 upwards, and the coupling 4 no longer contacts the adjusting bolt 6, so it does not affect the normal rotation of the coupling 4.

[0024] The fixing flange 5 is assembled on the coupling 4 by the method of hot fitting.

[0025] The upper gearbox 1 and the steering gear 2 can be assembled into one body. They are assembled into one body in the factory building and transported to the site. After that, the steering gear 2 can be installed on the hull 9 through bolts.

[0026] When the lower gearbox 3 is assembled with the coupling 4, it needs to be centered.

[0027] The adjusting bolt 6 is rotatably arranged on the steering gear 2, and the clearance between one end of the adjusting bolt 6 and the coupling 4 is set to 0.5 mm.

[0028] The lower gearbox 3 is provided with hole positions aligned with the steering gear 2. The inner surface of the coupling 4 is provided with a chamfer for auxiliary positioning. An input shaft flange 8 for adjusting the position of the coupling 4 is rotatably arranged on the upper gearbox 1. When the lower gearbox 3 is installed on site, since the coupling 4 is already in place, only the hole positions of the lower gearbox 3 need to be adjusted to align with the hole positions of the steering gear 2. Since the inner surface of the coupling 4 has a chamfer for auxiliary positioning, generally it can be directly assembled in place at this time. If it is not exactly in the meshing position in the circumferential direction, then manually twist the input shaft flange 8 slowly for adjustment.

[0029] Add a temporary fixing structure to fix the coupling 4 at the predetermined installation position;

[0030] Before transportation in the factory, connect the coupling 4 to the vertical shaft and support it by the adjusting bolt 6 inside the steering gear 2;

[0031] By adjusting the clearance between the adjusting bolt 6 and the coupling 4, it is ensured that the coupling 4 can move relatively for easy adjustment and is restricted near the installation position to ensure correct connection with the drive shaft.

[0032] Before installing the lower gearbox 3, the coupling 4 has reached the correct installation position, rather than being pushed into position by the lower gearbox 3, so that there will be no collision between the coupling 4 and the shaft due to incorrect position. At this time, as long as the installation hole positions between the lower gearbox 3 and the steering gear 2 are relatively correct, the smooth meshing between the coupling 4 and the shaft can be ensured. If the teeth differ greatly in the circumferential direction, adjustment can be made by rotating the input shaft flange 8 in the engine room.

[0033] The temporary fixing structure of the drum-shaped tooth coupling for a split-type installed rudder and propeller, through the provided steering gear 2 and fixing mechanism, the fixing flange 5, adjusting bolt 6 and locking nut 7 are used in cooperation to position the coupling 4, greatly reducing the difficulty of on-site adjustment and reducing the damage to the equipment caused by collision due to incorrect position. It can ensure that the coupling 4 can move relatively for easy adjustment and is restricted near the installation position to ensure correct connection with the drive shaft. And the coupling 4 is positioned before installing the lower gearbox 3, making the installation simpler and safer. Using the side of the bolt head of the adjusting bolt 6 to contact and position with the fixing flange 5 has extremely low cost. The coupling 4 is positioned at a slightly lower position than normal use, ensuring both the normal operation and use of the equipment and that the coupling 4 will not separate from the vertical shaft during transportation.

[0034] The above embodiments are only the preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantive changes and substitutions made by those skilled in the art based on the present invention belong to the scope of protection required by the present invention.

Claims

1. A temporary fixing structure for a drum-shaped gear coupling of a rudder propeller used in a split installation, applied to a steering device (2) and a lower gear box (3), characterized in that: include: A detachable fixing mechanism arranged on the steering device (2); Wherein, the steering device (2) can be externally connected to the hull (9); An upper gear box (1) is detachably fixed on the hull (9); The lower gear box (3) can be aligned and connected with the steering device (2); The upper gear box (1) is equipped with a coupling (4); The fixing mechanism comprises a fixing flange (5) fixedly connected to one end of the coupling (4) and a plurality of groups of adjusting bolts (6) detachably mounted on the steering device (2), wherein the adjusting bolts (6) are provided with locking nuts (7) connected to the steering device (2); The bolt head of the adjusting bolt (6) is in plane contact with the fixing flange (5); The lower gear box (3) is provided with a drive shaft for lifting the coupling (4).

2. A temporary fixing structure for a rudder propeller drum gear coupling used for split installation as claimed in claim 1, characterized in that: The fixed flange (5) is assembled on the coupling (4) by means of heat-fitting.

3. The temporary fixing structure of the drum-shaped gear coupling of the rudder propeller used for split installation as claimed in claim 1 is characterized in that: The upper gear box (1) and the steering device (2) can be assembled into one body, and the steering device (2) can be mounted on the hull (9) by means of bolts.

4. The temporary fixing structure of the drum-shaped gear coupling of the rudder propeller used for split installation as claimed in claim 1 is characterized in that: The lower gear box (3) and the coupling (4) need to be aligned when assembled.

5. The temporary fixing structure of the drum-shaped gear coupling of the rudder propeller used for split installation as claimed in claim 1, characterized in that: The adjusting bolt (6) is rotatably arranged on the steering device (2), and the clearance between one end of the adjusting bolt (6) and the coupling (4) is set to 0.5 mm.

6. The temporary fixing structure of the drum-shaped gear coupling of the rudder propeller used for split installation as claimed in claim 1, characterized in that: The lower gearbox (3) is provided with a hole aligned with the steering device (2), the inner surface of the coupling (4) is provided with a chamfer that can assist in positioning, and the upper gearbox (1) is rotatably provided with an input shaft flange (8) for adjusting the position of the coupling (4).

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