Semicircular adjustable anti-collision tool

Abstract

The utility model relates to a semicircular adjustable anti-collision tool which is installed on the lower portion of a flange end face of a stern tube, white alloy is arranged in the stern tube, a sensor connector is arranged at the position of the flange end face, the semicircular adjustable anti-collision tool comprises a bracket, an anti-collision rod, a clamping piece, a clamping piece and an anti-collision rod, the bracket is arranged to be semicircular, and the circle center of the bracket coincides with the axis of the stern tube; the multiple adjusting parts are distributed in the circumferential direction of the bracket and located on the inner concave side of the bracket, the multiple adjusting parts are arranged to be capable of ascending and descending in the radial direction of the bracket, any adjusting part is provided with a supporting face, the supporting face located at the lowest position is arranged to be higher than the sensor connector, and the adjusting parts are arranged to be capable of ascending and descending in the radial direction of the bracket. The distances between the supporting faces of the multiple adjusting pieces and the axis of the stern tube are equal, and the multiple adjusting pieces support a stern shaft through the supporting faces. Through the arrangement of the bracket and the adjusting piece, collision between the tail shaft and the sensor connector is avoided, the probability of the tail shaft and the bearing is reduced, and the field construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a semicircular adjustable anti-collision tooling. Background Art

[0002] During the propeller installation process of a ship, as one of the key components of ship power transmission, the stern shaft needs to pass through the stern tube from the inside of the engine room and extend out of the engine room to connect the propeller. When the stern shaft passes through the stern tube, a lifting machinery such as multiple hoists is usually used to connect the hanging beam or lifting lug above the stern shaft to control the height and forward and backward movement of the stern shaft so that the stern shaft can pass through the stern tube smoothly. There is a sensor interface at the end face of the stern tube, and the bearing is connected inside the stern tube. The gap between the stern shaft and the bearing is 0.9±0.1mm. Before the stern shaft enters the stern tube, there will be a slight offset in the center of the stern shaft, resulting in occasional friction between the stern shaft and the bearing, damaging the white metal surface or the stern shaft colliding with the front sealing end face of the stern tube, and even damaging the sensor connector. Any damage to components caused by the collision will cause great losses in time and cost. Utility Model Content

[0003] To this end, the technical problem to be solved by the utility model is to overcome the problem in the prior art that when the stern shaft is installed, there will be a slight offset between the center of the stern shaft and the center of the stern tube, which leads to friction between the stern shaft and the bearing and collision with the sensor joint, and thus provide a semicircular adjustable anti-collision tooling to avoid the collision between the stern shaft and the sensor joint, reduce the probability of the stern shaft and the bearing, and improve the on-site construction efficiency.

[0004] In order to solve the above technical problems, the utility model provides a semicircular adjustable anti-collision tooling, which is installed at the lower part of the flange end face of the stern tube, the stern tube is provided with white metal, and the flange end face is provided with a sensor connector, including:

[0005] A bracket, which is arranged in a semicircular shape, and the center of the bracket coincides with the axis of the stern tube;

[0006] An adjusting member, wherein the plurality of adjusting members are distributed along the circumference of the bracket and are located on the inner concave side of the bracket, the plurality of adjusting members are configured to be able to rise and fall along the radial direction of the bracket, any one of the adjusting members is provided with a supporting surface, the supporting surface at the lowest point is higher than the sensor joint, the supporting surfaces of the plurality of adjusting members are at an equal distance from the axis of the stern tube, and the plurality of adjusting members support the stern shaft through the supporting surface.

[0007] In one embodiment of the present invention, the radius of the semicircle is greater than the radius of the lumen of the stern tube.

[0008] In one embodiment of the present invention, the radius of the semicircle is greater than the radius of the stern shaft.

[0009] In one embodiment of the utility model, the bracket is provided with a through hole, the flange end surface is provided with a first screw hole corresponding to the through hole, and a bolt passes through the through hole and is threadedly connected to the first screw hole to fix the flange end surface and the bracket.

[0010] In one embodiment of the utility model, the adjusting member is configured as a screw rod, a nut is provided at the end of the screw rod, the bracket is provided with a plurality of second screw holes extending radially thereof, the screw rod is threadedly connected to the second screw holes, and the supporting surface is provided on the nut.

[0011] In one embodiment of the present invention, the circumference of the bracket along the circumferential direction is less than half of the circumference of the stern shaft.

[0012] In an embodiment of the present invention, the bracket extends along the axial direction of the stern tube.

[0013] In one embodiment of the present invention, the support surface at the lowest point is arranged higher than the lowest point of the white metal.

[0014] In an embodiment of the present invention, the adjusting member is made of metal material, and the metal material includes copper.

[0015] In an embodiment of the present invention, the bracket is made of steel.

[0016] In one embodiment of the utility model, the bracket is divided into a middle section, a left section and a right section, the middle section is located between the left section and the right section, the middle section, the left section and the right section are each provided with a plurality of the adjusting members, a gap is provided between adjacent adjusting members of the middle section and the left section; a gap is provided between adjacent adjusting members of the middle section and the right section.

[0017] The above technical solution of the utility model has the following beneficial effects compared with the prior art:

[0018] The semicircular adjustable anti-collision tooling disclosed in the utility model can avoid the collision between the stern shaft and the sensor joint by arranging an adjusting piece on the bracket to support the stern shaft so that the stern shaft is higher than the sensor joint, thereby protecting the sensor joint; the multiple adjusting pieces on the semicircular bracket can not only support the stern shaft, but also the stern shaft can find its center by itself through the multiple adjusting pieces, automatically coincide with the axis of the stern tube, and then control the gap between the stern shaft and the bearing, play a role of multiple protection and improve on-site construction; the height of the supporting surface can be flexibly adjusted by the adjusting piece, so that the tooling can flexibly adjust the height of the stern shaft to ensure that the stern shaft is always higher than the sensor joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein

[0020] Figure 1 It is a structural schematic diagram of a semicircular adjustable anti-collision tooling in a preferred embodiment of the utility model.

[0021] Figure 2 It is a schematic diagram of the axial structure of the stern tube in the preferred embodiment of the utility model.

[0022] Figure 3 It is a structural schematic diagram of a side view of a propeller, a stern tube, a stern shaft and a hoist in a preferred embodiment of the utility model when working.

[0023] Explanation of the reference numerals in the drawings in the specification: 1. propeller; 2. stern tube; 21. flange end face; 22. first screw hole; 3. bearing; 4. hoist; 5. stern shaft; 6. semicircular adjustable anti-collision tooling; 61. supporting surface; 62. adjusting part; 63. concave side; 64. left section; 65. middle section; 66. through hole; 67. right section; 68. gap; 69. gap; 7. sensor connector; 8. white metal; 9. bracket. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0025] Example

[0026] Reference Figure 1 , 2 As shown in Figure 3, in one embodiment of the utility model, a semicircular adjustable anti-collision tool is installed at the lower part of the flange end face 21 at one end of the stern tube 2, and is used to support the stern shaft 5 inserted into the stern tube 2. A white alloy 8 and a bearing 3 are arranged inside the other end of the stern tube 2. The white alloy 8 has low strength and is used to reduce friction. A sensor connector 7 is arranged at the flange end face 21. The tool also includes:

[0027] The bracket 9 is configured as a semicircular structure, which is convenient for a lifting machine such as a hoist 4 to directly place the stern shaft 5 into the concave side 63 of the bracket 9, and the center of the semicircle coincides with the axis of the stern tube 2. When the stern shaft 5 is placed into the concave side 63 of the bracket 9, the stern shaft 5 will eventually be located at the lowest point of the semicircular bracket 9. At this time, the stern shaft 5 is higher than the sensor connector 7, and the spacing between the stern shaft 5 and the bearing 3 is within a reasonable range. When the stern shaft 5 is inserted into the stern tube 2, the stern shaft 5 cannot contact the sensor connector 7;

[0028] An adjusting member 62, seven of the adjusting members 62 are spaced apart along the circumference of the bracket 9 and are located on the inner concave side 63 of the bracket 9, the seven adjusting members 62 are configured to be able to rise and fall along the radial direction of the bracket 9, such as by being driven by a cylinder or by being pushed manually, a supporting surface 61 is provided on the top of any adjusting member 62, the supporting surface 61 at the lowest point is higher than the sensor joint 7, so that the stern shaft 5 located on the bracket 9 is higher than the sensor joint 7, the supporting surfaces 61 of the seven adjusting members 62 are at equal distances from the axis / center of the stern tube 2, and the seven adjusting members 62 support the stern shaft 5 from different directions through the supporting surface 61.

[0029] In one embodiment of the present invention, the radius of the semicircular bracket is greater than the radius of the tube cavity of the stern tube 2, and the radius of the semicircle refers to the distance from the center of the semicircle to the surface of the inner concave side 63.

[0030] In one embodiment of the present invention, the radius of the semicircular bracket is greater than the radius of the stern shaft 5, so as to make the stern shaft 5 completely fall into the concave side 63 of the bracket 9 and prevent the center of the stern shaft 5 from shifting during the insertion of the stern tube 2.

[0031] In one embodiment of the present invention, referring to Figure 1 As shown, the side of the bracket 9 is provided with a plurality of through holes 66, and the plurality of through holes 66 are distributed along the circumference of the bracket 9. The lower part of the flange end face 21 is provided with a plurality of first screw holes 22 corresponding to the plurality of through holes 66. Bolts pass through the through holes 66 and are threadedly connected to the first screw holes 22 to fix the flange end face 21 and the bracket 9.

[0032] In one embodiment of the present invention, referring to Figure 1 As shown, the adjusting member 62 is configured as a screw, a nut is provided at the end of the screw, the bracket 9 is provided with a plurality of second screw holes extending radially thereof, the screw is threadedly connected to the second screw holes, the supporting surface 61 is provided on the nut, and the height of the supporting surface 61 is adjusted by rotating the screw.

[0033] In one embodiment of the present invention, the circumference of the bracket 9 along the circumferential direction is less than half the circumference of the stern shaft 5 .

[0034] In one embodiment of the utility model, the bracket 9 can also extend along the axial direction of the stern tube 2, and a plurality of adjusting members 62 are provided in the extending direction of the bracket 9 to increase the contact surface between the bracket 9 and the stern shaft 5 and improve the stability of the stern shaft 5.

[0035] In one embodiment of the present invention, referring to Figure 1As shown, the support surface 61 located at the lowest point is set higher than the lowest point of the white alloy 8. When the stern shaft 5 passes through the stern tube 2, multiple adjustment members 62 are used to guide the axis of the stern tube 2 to ensure that the center of the stern shaft 5 does not shift, and the stern shaft 5 is located above the white alloy 8 to prevent the stern shaft 5 from colliding with the end surface of the white alloy 8.

[0036] In an embodiment of the present invention, the adjusting member 62 is made of metal, and the metal material is preferably copper.

[0037] In one embodiment of the present invention, in order to improve the strength of the bracket 9, the bracket 9 is made of steel.

[0038] In one embodiment of the present invention, referring to Figure 1 As shown, the bracket 9 is divided into a middle section 65, a left section 64 and a right section 67. The middle section 65 is located between the left section 64 and the right section 67, and the middle section 65 is provided with three adjusting members 62; the left section 64 and the right section 67 are each provided with two adjusting members 62, and a gap 68 is provided between the middle section 65 and the adjacent adjusting members 62 of the left section 64; a gap 69 is provided between the middle section 65 and the adjacent adjusting members 62 of the right section 67, and the functions of the gaps 68 and 69 are to reduce the number of adjusting members 62 and reduce the total weight of the bracket 9; relative to the left section 64 and the right section 67, the height of the adjusting member 62 located in the middle section 65 is the lowest.

[0039] The working principle of the semicircular adjustable anti-collision tooling of the utility model is:

[0040] Before installing the stern shaft 5, the height of the adjusting member 62 is changed so that the supporting surface 61 is higher than the sensor joint 7, and then the hoist 5 is used to horizontally lift the stern shaft 5 so that the stern shaft 5 is aligned with the stern tube 2. The hoist 5 controls the stern shaft 5 to move forward, and before the end of the stern shaft 5 enters the stern tube 2, it falls on the adjusting member 62. At this time, the stern shaft 5 is higher than the sensor joint 7. The stern shaft 5 uses multiple supporting surfaces 61 to find its center until the axis / center of the stern shaft 5 coincides with the axis / center of the stern tube 2, and then the offset of the center of the stern shaft 5 is eliminated, and the gap between the stern shaft 5 and the bearing 3 is within a normal range. Then the hoist 5 controls the stern shaft 5 to move forward, and the stern shaft 5 slides over the supporting surface 61 and is inserted into the stern tube 2, and finally passes out of the cabin to connect the propeller 1.

[0041] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A semicircular adjustable anti-collision tooling, which is installed at the lower part of the flange end face of the stern tube, the stern tube is provided with white metal, and the flange end face is provided with a sensor connector, characterized in that: include, A bracket, which is arranged in a semicircular shape, and the center of the bracket coincides with the axis of the stern tube; An adjusting member, wherein the plurality of adjusting members are distributed along the circumference of the bracket and are located on the inner concave side of the bracket, the plurality of adjusting members are configured to be able to rise and fall along the radial direction of the bracket, any one of the adjusting members is provided with a supporting surface, the supporting surface at the lowest point is higher than the sensor joint, the supporting surfaces of the plurality of adjusting members are at an equal distance from the axis of the stern tube, and the plurality of adjusting members support the stern shaft through the supporting surface.

2. A semicircular adjustable anti-collision tooling according to claim 1, characterized in that: The radius of the semicircle is greater than the radius of the lumen of the stern tube.

3. The semicircular adjustable anti-collision tooling according to claim 1, characterized in that: The radius of the semicircle is greater than the radius of the stern shaft.

4. The semicircular adjustable anti-collision tooling according to claim 1, characterized in that: The bracket is provided with a through hole, and the flange end surface is provided with a first screw hole corresponding to the through hole. A bolt passes through the through hole and is threadedly connected to the first screw hole to fix the flange end surface and the bracket.

5. The semicircular adjustable anti-collision tooling according to claim 1, characterized in that: The adjusting member is configured as a screw rod, a nut is disposed at the end of the screw rod, the bracket is provided with a plurality of second screw holes extending radially thereof, the screw rod is threadedly connected to the second screw holes, and the supporting surface is disposed on the nut.

6. The semicircular adjustable anti-collision tooling according to claim 1, characterized in that: The circumference of the bracket along the circumferential direction is less than half of the circumference of the stern shaft.

7. The semicircular adjustable anti-collision tooling according to claim 1, characterized in that: The bracket extends along the axial direction of the stern tube.

8. The semicircular adjustable anti-collision tooling according to claim 1, characterized in that: The support surface at the lowest point is arranged higher than the lowest point of the white metal.

9. The semicircular adjustable anti-collision tooling according to claim 1, characterized in that: The adjusting member is made of metal, and the metal material includes copper.

10. The semicircular adjustable anti-collision tooling according to claim 1, characterized in that: The bracket is divided into a middle section, a left section and a right section, the middle section is located between the left section and the right section, the middle section, the left section and the right section are all provided with a plurality of the adjusting parts, gaps are provided between adjacent adjusting parts of the middle section and the left section; gaps are provided between adjacent adjusting parts of the middle section and the right section.

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