Gear box positioning tool and using method

Abstract

The invention discloses a gear box positioning tool and a using method. The gear box positioning tool comprises a base body, a check block and a flange. A plurality of positioning holes are formed in the base body, and the positioning holes penetrate through the base body; the multiple check blocks are arranged on the end face of the base body, the multiple check blocks are arranged around the positioning hole, and a mounting position is defined by the multiple check blocks; the flange is matched with the installation position, when the gear box is inserted into the positioning hole, the flange abuts against the end face of the positioning hole, the flange is installed on the end face of the positioning hole, a thrust washer is arranged between the flange and the check block, and the thrust washer abuts against the check block and the flange. The gear box positioning tool is horizontally placed and laid down, the gear box is vertically hoisted into the positioning hole, the gear box is connected with the base body through the flange and matched with the thrust washer, the gear box is assembled on the base body, positioning of the gear box and vertical hoisting and assembling of the gear box on the base body are achieved, high-altitude transverse hoisting operation is avoided, and safety risks are reduced. Meanwhile, the construction difficulty and cost are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of gear box installation, and in particular to a gear box positioning tool and a use method thereof. Background Art

[0002] Some offshore jack-up platforms are equipped with an electrically driven rack and pinion jacking system to raise and lower the platform and secure it at a certain height. The jacking unit of this system consists of a gearbox and a motor. Currently, this is typically installed after the jacking foundation structure is welded to the hull and the pile legs are installed. However, by this time, the vessel is already in dock, and installing the jacking unit can delay the docking period and impact shipyard production. Furthermore, during jacking unit installation, the gearbox and motor are hoisted horizontally, requiring high-altitude and cross-operation work. This poses significant safety risks, is difficult to implement, and results in a long construction period and high costs. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides a gearbox positioning tool and a method of use, which reduces safety risks, reduces construction difficulty, saves construction period in the dock, and reduces construction costs.

[0004] According to the first aspect of the present invention, the gearbox positioning tooling includes: a base, a stopper and a flange; the base is provided with a plurality of positioning holes, the positioning holes pass through the base, and the positioning holes are adapted to the shape of the gearbox; a plurality of stoppers are provided, and the plurality of stoppers are arranged on the end face of the base, the plurality of stoppers are arranged around the positioning holes, and the plurality of stoppers surround and form a mounting position; the flange is installed on the gearbox, the flange matches the mounting position, and when the gearbox is inserted into the positioning hole, the flange abuts against the end face of the positioning hole, and the flange is installed to the end face of the positioning hole, and a thrust washer is provided between the flange and the stopper, and the thrust washers abut against the stopper and the flange.

[0005] In some embodiments of the present invention, a plurality of bushings are provided in the positioning hole, and the bushings are used to position the gear box.

[0006] In some embodiments of the present invention, three sleeves are provided, wherein two sleeves are respectively provided at the upper and lower parts of the inner wall of the positioning hole, and one sleeve is provided at the middle part of the inner wall of the positioning hole.

[0007] In some embodiments of the present invention, the flange is provided with a plurality of bolts, and the bolts are used to pass through the flange and be threadedly connected to the base.

[0008] In some embodiments of the present invention, the plurality of bolts are evenly distributed on the flange.

[0009] The method of use according to the second embodiment of the present invention, applied to the gearbox positioning tooling according to the first embodiment of the present invention, comprises the following steps:

[0010] S1, placing the base body flat on the docking pier with the positioning holes facing upward;

[0011] S2, lifting the gearbox and vertically guiding the gearbox into the positioning hole until the flange abuts against the end surface of the positioning hole;

[0012] S3, manually adjusting the gap between the stopper and the flange until the gap between the stopper and the flange is uniform at all locations;

[0013] S4, tightening the flange by the bolts;

[0014] S5, measuring the gap between the stopper and the flange, and processing and fitting the thrust washer according to the measured data;

[0015] S6, inserting the thrust washer into the gap between the stopper and the flange;

[0016] S7, hoist the motor and assemble it vertically with the gearbox.

[0017] In some embodiments of the present invention, in S1, a block is provided between the base and the dock.

[0018] Compared with the prior art, the gear box positioning tooling and the method of use of the embodiment of the present invention have the following beneficial effects: the gear box positioning tooling is laid flat, and then the gear box is vertically hoisted into the positioning hole, and is fastened to the base through a flange, and is used in conjunction with a thrust washer to ensure that the gear box is stably assembled on the base, thereby realizing the positioning assembly of the gear box. The gear box is vertically hoisted and assembled on the base, avoiding high-altitude horizontal hoisting operations, reducing safety risks, and at the same time reducing installation difficulty and costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A cross-sectional view of the gearbox positioning tooling without the flange according to the first aspect of the present invention;

[0020] Figure 2 A top view of a gearbox positioning tool according to an embodiment of the first aspect of the present invention;

[0021] Figure 3 A schematic diagram of a gearbox assembly according to a second embodiment of the present invention and a method of using the gearbox positioning tool;

[0022] Figure 4Schematic diagram of the assembly of the motor and the gearbox according to the method of using the gearbox positioning tooling according to the second embodiment of the present invention

[0023] Description of reference numerals:

[0024] Base 110 ; stopper 111 ; positioning hole 112 ; sleeve 113 ; flange 210 ; bolt 211 ; thrust washer 212 ; gear box 300 ; lifting lug 310 ; dock 400 ; skid 410 ; motor 500 . DETAILED DESCRIPTION

[0025] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0026] Reference Figure 1 and Figure 2 The positioning tool of the gear box 300 according to the first embodiment of the present invention includes: a base 110, a stopper 111 and a flange 210; the base 110 is provided with a plurality of positioning holes 112, the positioning holes 112 pass through the base 110, and the positioning holes 112 are adapted to the shape of the gear box 300; the stopper 111 is provided with a plurality of, and the plurality of stoppers 111 are provided on the end surface of the base 110, and the plurality of stoppers 111 are provided around the positioning holes 112. The gear box 300 is positioned such that a plurality of stops 111 surround and form a mounting position; the flange 210 is mounted on the gear box 300, and the flange 210 matches the mounting position. When the gear box 300 is inserted into the positioning hole 112, the flange 210 abuts against the end face of the positioning hole 112, and the flange 210 is mounted to the end face of the positioning hole 112. A thrust washer 212 is provided between the flange 210 and the stop block 111, and the thrust washer 212 abuts against the stop block 111 and the flange 210.

[0027] Place the base 110 flat on the dock 400 in the dock with the positioning hole 112 facing upwards, and sleeve the flange 210 on the gear box 300. Then hoist the gear box 300 into the positioning hole 112 until the flange 210 abuts against the end face of the positioning hole 112. The flange 210 is positioned in the installation position. Manually adjust the gear box 300 and adjust the gap between the flange 210 and the stopper 111 until the gap between the flange 210 and the stopper 111 is uniform everywhere to prevent the gear box 300 from being stuck in the positioning hole 112. The gearbox 300 is then fastened to the base 110 by fixing the flange 210 to the base 110. A thrust washer 212 is inserted into the gap, with the two sides of the thrust washer 212 respectively contacting the stopper 111 and the flange 210. The motor 500 is then hoisted onto the gearbox 300 and docked with the gearbox 300. This completes the docking of the motor 500 and the gearbox 300. The base 110 is then moved as a whole, with the base 110 serving as part of the lifting unit, and the lifting unit is then assembled. By securing the flange 210, the gearbox 300 is positioned on the base 110 in a simple and quick manner. Furthermore, the base 110 is placed flat on the dock 400, allowing the gearbox 300 and motor 500 to be hoisted vertically, reducing the operating height, avoiding high-altitude operations, and reducing safety risks. Compared to horizontal hoisting, which requires the addition of additional counterweights to balance the center of gravity and provide traction assistance, this reduces construction difficulty and improves construction efficiency, thereby shortening the construction period within the dock and saving costs.

[0028] It is understandable that, referring to Figure 1 A plurality of bushings 113 are provided in the positioning hole 112 to position the gearbox 300. After the gearbox 300 is inserted into the positioning hole 112, the bushings 113 abut against the gearbox 300, preventing the gearbox 300 from shaking within the positioning hole 112. This improves the mounting stability between the gearbox 300 and the base 110 and prevents damage to the gearbox 300 from friction with the inner wall of the positioning hole 112.

[0029] It is also understood that in this embodiment, three bushings 113 are provided, with two bushings 113 disposed at the upper and lower portions of the inner wall of the positioning hole 112, respectively. One bushing 113 is disposed in the middle portion of the positioning hole, so that after the gearbox 300 is introduced into the positioning hole 112, the force applied to the gearbox 300 is evenly distributed, thereby improving the stability of the gearbox 300.

[0030] It is understandable that, referring to Figure 2The flange 210 is provided with a plurality of bolts 211, which are evenly distributed on the flange 210. The bolts 211 are used to pass through the flange 210 and threadedly connect to the base 110. After adjusting the gap between the flange 210 and the stopper 111, the flange 210 is installed on the base 110 by passing the bolts 211 through the flange 210 and threading them to the base 110, thereby achieving preliminary positioning of the gearbox 300. Then, the thrust washer 212 is inserted into the gap between the flange 210 and the stopper 111 to further position the gearbox 300. When tightening the flange 210, the evenly distributed bolts 211 can ensure that the flange 210 is subjected to uniform force, thereby improving the connection stability between the gearbox 300 and the base 110.

[0031] Reference Figure 3 and Figure 4 The method of using the second embodiment of the present invention, applied to the positioning fixture of the gear box 300 described in the first embodiment of the present invention, comprises the following steps:

[0032] S1, place the base 110 flat on the dock 400 with the positioning hole 112 facing upward, and install the flange 210 on the gear box 300;

[0033] S2, the gear box 300 is provided with a lifting lug 310, the gear box 300 is lifted by the lifting lug 310, and then the gear box 300 is vertically introduced into the positioning hole 112 until the flange 210 abuts against the end surface of the positioning hole 112;

[0034] S3, manually adjust the gap between the stopper 111 and the flange 210 until the gap between the stopper 111 and the flange 210 is uniform everywhere;

[0035] S4, tighten the flange 210 by means of bolts 211;

[0036] S5, measuring the gap between the stopper 111 and the flange 210, and processing and fitting the thrust washer 212 according to the measured data;

[0037] S6, inserting the thrust washer 212 into the gap between the stopper 111 and the flange 210;

[0038] S7, hoist the motor 500, and assemble the motor 500 vertically with the gear box 300.

[0039] In addition, in S1, a block 410 is provided between the base 110 and the dock 400. The added block 410 can act as a buffer, reduce the vibration generated during operation, and avoid wear between the base 110 and the dock 400. At the same time, the block 410 increases the friction force and reduces the displacement of the base 110 during lifting.

[0040] The gear box 300 positioning tool is placed flat, and then the gear box 300 is hoisted into the positioning hole 112, and connected to the base 110 through the flange 210 and the thrust washer 212, so that the gear box 300 is assembled on the base 110, and the positioning of the gear box 300 is achieved at the same time. The gear box 300 is assembled to the base 110 by horizontal hoisting, avoiding the risk of high-altitude operations in vertical hoisting, while reducing the difficulty of installation and reducing costs.

[0041] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary counting personnel in this technical field, several improvements and substitutions can be made without departing from the counting principle of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. Gearbox positioning tooling, characterized in that: Includes: A base body, wherein the base body is provided with a plurality of positioning holes, the positioning holes passing through the base body and adapted to the shape of the gear box; There are multiple stoppers, each of which is arranged on the end surface of the base body and surrounds the positioning hole to form a mounting position; A flange is installed on the gearbox, and the flange matches the mounting position. When the gearbox is inserted into the positioning hole, the flange abuts against the end face of the positioning hole, and the flange is installed to the end face of the positioning hole. A thrust washer is provided between the flange and the stop block, and the thrust washers abut against the stop block and the flange.

2. The gearbox positioning tool according to claim 1, characterized in that: A plurality of bushings are provided in the positioning holes and are used to position the gear box.

3. The gearbox positioning tool according to claim 2, characterized in that: There are three shaft sleeves, two of which are respectively arranged at the upper and lower parts of the inner wall of the positioning hole, and one shaft sleeve is arranged at the middle part of the inner wall of the positioning hole.

4. The gearbox positioning tool according to claim 1, characterized in that: The flange is provided with a plurality of bolts, and the bolts are used to pass through the flange and be threadedly connected to the base.

5. The gearbox positioning tool according to claim 4, characterized in that: The plurality of bolts are evenly distributed on the flange.

6. A method of use, characterized in that: The gearbox positioning tool used in any one of claims 1 to 5 comprises the following steps: S1, placing the base body flat on the docking pier with the positioning holes facing upward; S2, lifting the gearbox and vertically guiding the gearbox into the positioning hole until the flange abuts against the end surface of the positioning hole; S3, manually adjusting the gap between the stopper and the flange until the gap between the stopper and the flange is uniform at all locations; S4, locking the flange; S5, measuring the gap between the stopper and the flange, and processing and fitting the thrust washer according to the measured data; S6, inserting the thrust washer into the gap between the stopper and the flange; S7, hoist the motor and assemble it vertically with the gearbox.

7. The method of use according to claim 6, characterized in that: In the above-mentioned S1, a block is provided between the base and the dock.

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