Rudder ball installation auxiliary device

Abstract

The utility model discloses a rudder ball installation auxiliary device which comprises a first installation plate and a second installation plate, fixing plates are fixedly installed on the first installation plate and the second installation plate respectively, and suction cups capable of fixing the device on the wall face of a steel box girder are arranged on the fixing plates. Two connecting rods with the same length are hinged to the first installation plate, the other ends of the connecting rods are hinged to a movable plate, the two connecting rods are kept parallel, the movable plate is installed on a sliding rod in a sliding mode, the two parts of the device are fixed to the two steel box girders to be welded respectively, and along with movement of the two welding pieces, the two welding pieces can be welded to the two steel box girders to be welded. The connecting rod and the movable plate in the device move along with the device, and when the connecting rod and the movable plate are in a standard state, it can be proved that no dislocation occurs between the two welding pieces.

Description

Technical Field

[0001] The utility model relates to the field of rudder ball manufacturing, in particular to a rudder ball installation auxiliary device. Background Art

[0002] The rudder bulb is an energy-saving device installed on the rudder blade of a ship, usually located on the centerline of the propeller tail shaft. The rudder bulb body is composed of an outer steel plate and an internal frame. The rudder bulb is usually installed by welding. Due to the overall large size and high material weight of the rudder bulb, it is not easy to place the steel plate in place and accurately splice it with adjacent steel plates during welding. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a rudder ball installation auxiliary device to solve the current pain points in this field.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions:

[0005] A rudder ball installation auxiliary device includes a first mounting plate and a second mounting plate, wherein the first mounting plate and the second mounting plate are both fixedly mounted with a fixing plate, and the fixing plate is provided with a suction cup that can fix the device to the wall surface of the steel box girder, and the fixed positions of the first mounting plate and the second mounting plate are a fixed distance away from the welding seam, and two connecting rods of equal length are hinged on the first mounting plate, and the other ends of the connecting rods are hinged on the movable plate, and the two connecting rods remain parallel, and the movable plate is slidably mounted on the sliding rod, and the sliding rod is slidably mounted in the middle of the second mounting plate.

[0006] A socket is provided in the middle of the first mounting plate. When the connecting rod and the movable plate are in normal positions, the slide rod is slid. If the slide rod can be inserted into the socket, it means that the two welded parts are on the same straight line without any deviation angle.

[0007] Positioning blocks are provided on the first mounting plate and the second mounting plate. The positioning blocks are close to the wall surface of the steel box beam and have a length that is required for the normal installation distance weld of the first mounting plate and the second mounting plate.

[0008] To sum up, the beneficial effects of the present invention compared with the prior art are as follows: the two parts of the device are respectively fixed on the two steel plates to be welded, and as the two welded parts move, the connecting rod and the movable plate in the device move accordingly. When the two are in a standard state, it can be proved that there is no misalignment between the two welded parts. Then slide the slide rod. If the slide rod can be inserted into the socket exactly, it indicates that there is no deflection angle between the two welded parts. When it is confirmed that the position between the two steel plates is correct, welding can be started. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, in which:

[0010] Figure 1 This is a structural diagram of a rudder ball installation auxiliary device.

[0011] Explanation of the accompanying drawings: 1. First mounting plate; 2. Second mounting plate; 3. Fixed plate; 4. Positioning block; 5. Connecting rod; 6. Movable plate; 7. Sliding rod; 8. Socket. DETAILED DESCRIPTION

[0012] The utility model is further described in detail below with reference to the accompanying drawings.

[0013] The cam is fixed to the second mounting plate 2 and the second mounting plate 2 is fixed to the first mounting plate 1 and the second mounting plate 2. The cam is fixed to the second mounting plate 2 and the second mounting plate 2 is fixed to the first mounting plate 1 and the second mounting plate 2. When the cam is fixed, the first mounting plate 1 and the second mounting plate 2 are perpendicular to the surface of the steel plate. The first mounting plate 1 and the second mounting plate 2 are fixed at a fixed distance from the welding seam. Two connecting rods 5 of equal length are hinged on the first mounting plate 1. The other ends of the connecting rods 5 are hinged on a movable plate 6, and the two connecting rods 5 remain parallel. The movable plate 6 is slidably mounted on a sliding rod 7, and the sliding rod 7 is slidably mounted on the middle part of the second mounting plate 2. When the two welded parts are in contact and there is no misalignment, the connecting rod 5 is perpendicular to the first mounting plate 1 and the second mounting plate 2, and the movable plate 6 is close to the second mounting plate 2. If the welded parts are misaligned, the connecting rod 5 is deflected, and the movable plate 6 is separated from the second mounting plate 2, thereby judging whether the two steel plates are misaligned.

[0014] A socket 8 is provided in the middle of the first mounting plate 1. When the connecting rod 5 and the movable plate 6 are in normal positions, the slide rod 7 is slid. If the slide rod 7 can be inserted into the socket 8, it means that the two welded parts are on the same straight line without any deviation angle.

[0015] Positioning blocks 4 are provided on the first mounting plate 1 and the second mounting plate 2. The positioning blocks 4 are close to the steel plate and have a length required for the normal installation distance weld of the first mounting plate 1 and the second mounting plate 2. Aligning the positioning blocks 4 to their welds helps to position the first mounting plate 1 and the second mounting plate 2.

[0016] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the scope of protection of the present invention. The scope of protection of the present invention is determined by the appended claims.

Claims

1. A rudder ball installation auxiliary device, characterized by: The invention comprises a first mounting plate (1) and a second mounting plate (2), wherein a fixing plate (3) is fixedly mounted on the first mounting plate (1) and the second mounting plate (2), and a suction cup is provided on the fixing plate (3) for fixing the device on a steel plate. The first mounting plate (1) and the second mounting plate (2) are fixed at a fixed distance from a welding seam. Two connecting rods (5) of equal length are hinged on the first mounting plate (1), and the other end of the connecting rod (5) is hinged on a movable plate (6), and the two connecting rods (5) are kept parallel. The movable plate (6) is slidably mounted on a sliding rod (7), and the sliding rod (7) is slidably mounted on the middle part of the second mounting plate (2).

2. The rudder ball installation auxiliary device according to claim 1, characterized in that: A socket (8) is provided in the middle of the first mounting plate (1). When the connecting rod (5) and the movable plate (6) are in normal positions, the slide rod (7) is slid. If the slide rod (7) can be inserted into the socket (8), it means that the two welded parts are on the same straight line and there is no deviation angle.

3. The rudder ball installation auxiliary device according to claim 1, characterized in that: Positioning blocks (4) are provided on the first mounting plate (1) and the second mounting plate (2); the positioning blocks (4) are close to the wall surface of the steel box beam and have a length that is required for the normal installation distance weld of the first mounting plate (1) and the second mounting plate (2).

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