A method of installing a slip ring drive system

Abstract

The application discloses a kind of slide ring driving system installation methods, the invention is by making the center of driving beam support with the center of driving ear plate on the outer ring of slide ring is level, using square steel pipe auxiliary adjustment parallelism of two driving beam support surfaces to position welding driving beam support;The shortest distance between square steel pipe and slide ring is measured, to determine the center of slide ring;Mark on square steel pipe, prepare for driving beam positioning;Rotary adjustment slide ring orientation, make the driving ear plate on both sides of the outer ring of slide ring symmetrically arranged, according to previous positioning installation driving beam and driving arm, and spot welding is fixed;Measure approval deviation, welding assembly.The application does not need to carry out on-site machining work, avoids rework, directly installs driving system in place and meets the precision control requirement once, reduces construction cost, realizes the high efficiency high-precision installation of driving system.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of installation of a slip ring in an internal turret single point mooring system in offshore oil engineering, and particularly relates to a method for installing a slip ring driving system. BACKGROUND

[0002] The slip ring is a core device of the internal turret single point mooring system. The slip ring unit body is connected to the tower structure of the single point mooring system through a driving system. The driving system is composed of a driving beam, a connecting arm, a hinged plate, a driving arm and the like. The tower structure drives the driving ear plate to drive the outer ring of the slip ring to rotate through the driving system. In theory, after high-precision and high-quality installation of the driving system, only the tangential force is transmitted to the outer ring of the slip ring to overcome the friction of the slip ring bearing and the internal sealing system, and the outer ring of the slip ring is driven to rotate around the inner ring. The installation of the driving system is generally performed after the installation of each group of slip ring units. The installation precision of the driving system should meet the requirements to ensure the normal rotation of the slip ring.

[0003] The traditional method and the existing problems are as follows: during the installation of the driving system, in theory, the center of the driving beam and the center of the driving ear plate of the slip ring should be at the same height in the height direction, and the center line of the driving beam and the center line of the slip ring should be centered in the horizontal direction, and the driving ear plates on both sides of the outer ring of the slip ring should be symmetrically arranged. However, in practice, there is a large deviation in the above size positioning. In the traditional method, the driving beam support is welded on the tower structure before the installation of the driving system. The driving beam and the driving arm are installed by relying on construction experience and combining the position of the slip ring unit. Then, the hinged shaft hole between the driving beam and the driving arm is usually machined on site. Sometimes, the position of the slip ring needs to be repeatedly rotated and adjusted, and even the driving beam support needs to be cut and repositioned and welded to adjust and correct the installation deviation. These on-site modification work delays the construction period, consumes manpower, reduces the installation efficiency and precision of the driving system, and further affects the normal rotation and service life of the slip ring. SUMMARY

[0004] The disclosed method for installing a slip ring driving system directly and one-time installs the driving system in place and meets the size precision control requirements, reduces the construction cost, and realizes high-efficiency and high-precision installation of the driving system.

[0005] To solve the above technical problems, the present application provides a method for installing a slip ring driving system, which is completed by the following steps:

[0006] S1, measuring the height of the driving beam support of the slip ring, and making the center of the driving beam support and the center of the driving ear plate located on the outer ring of the slip ring at the same height;

[0007] positioning the laser measuring instrument above the driving ear plate, wherein:

[0008] H1 = height of laser measuring instrument, H2 = half of height of driving lug plate;

[0009] Mark at H = H1 + H2 below the laser positioning point on the tower column, and make the center of the driving beam support at the mark;

[0010] S2, adjust the driving beam support so that the two driving beam supports are parallel;

[0011] Place a square steel tube against the surface of the two driving beam supports, slowly rotate the driving beam support until the two driving beam supports are parallel, and position and weld the driving beam support;

[0012] S3, determine the center of the slip ring and mark on the square steel tube;

[0013] Place the square steel tube against the surface of the two driving beam supports, move the laser measuring instrument set on the top surface of the square steel tube along the square steel tube to find the shortest distance between the square steel tube and the slip ring, determine the center of the slip ring, then mark on the square steel tube, and record the distances L1 and L2 from the mark to the two driving beam supports, respectively;

[0014] S4, adjust the orientation of the slip ring so that the driving lug plates on both sides of the outer ring of the slip ring are symmetrically arranged;

[0015] Measure the distances between the two driving lug plates on the outer ring of the slip ring and the mark on the square steel tube, respectively, and check whether the distances are equal;

[0016] If not, rotate to adjust the orientation of the slip ring until the distances between the two driving lug plates and the mark on the square steel tube are equal;

[0017] S5, pre-assemble the driving beam, connecting arm, and hinged plate together, connect one end of the driving arm to the hinged plate through a U-shaped joint, and mark the center of the driving beam at the middle position of the shaft hole where the two driving arms are connected to the hinged plate;

[0018] S6, assemble the driving beam close to the surface of the driving beam support, overlap the marked center of the driving beam with the positions of the L1 and L2 marks in the above step S3, complete the positioning of the driving beam, connect the other end of the driving arm to the outer ring of the slip ring through a U-shaped joint, and spot weld the connection between the driving beam and the driving beam support and the two ends of the driving arm;

[0019] S7, measure the distance deviation Z between the center of the driving beam and the center of the driving lug plate of the slip ring in the height direction, measure the distance deviation Y between the center line of the slip ring and the center line of the driving beam in the horizontal direction, measure the distances X1 and X2 between the centers of the two diagonal hinged shafts of the driving system, check the deviation between the two distances X1 and X2, and complete the final welding and fixing after the above distance deviations meet the size precision control requirements.

[0020] The technical effect of the present application is that the present application measures and determines the height of the slide ring driving beam support, makes the center of the driving beam support and the center of the driving lug plate on the outer ring of the slide ring level, uses the square steel pipe to assist in adjusting the parallelism of the surfaces of the two driving beam supports, makes the two driving beam supports parallel, and positionally welds the driving beam support; measures the shortest distance between the square steel pipe and the slide ring, determines the center of the slide ring, marks on the square steel pipe, and prepares for positioning of the driving beam; rotates to adjust the position of the slide ring, makes the driving lug plates on both sides of the outer ring of the slide ring symmetrically arranged, installs the driving beam and the driving arm according to the previous positioning, and spot welds and fixes; measures and checks the distance deviation Z between the center of the driving beam and the center of the driving lug plate in the height direction, measures and checks the distance deviation Y between the center line of the slide ring and the center line of the driving beam in the horizontal direction, measures the distances X1 and X2 between the centers of the two diagonal articulated shafts of the driving system, checks the deviation between the two distances X1 and X2, and completes the final welding and fixing after the distance deviations meet the size precision control requirements. The present application does not need to carry out on-site machining work, avoids rework, directly installs the driving system in place at one time and meets the precision control requirements, reduces the construction cost, and realizes high-efficiency and high-precision installation of the driving system. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the driving system top view in the present application.

[0022] Figure 2 is the driving beam support center and driving lug plate center level positioning schematic diagram in the present application.

[0023] Figure 3 is the two driving beam support parallel positioning schematic diagram.

[0024] Figure 4 is the slide ring center positioning schematic diagram.

[0025] Figure 5 is the slide ring driving lug plate symmetric positioning schematic diagram.

[0026] Figure 6 is the marking driving beam center and connecting driving arm schematic diagram.

[0027] Figure 7 is the positioning installation driving beam and connecting driving arm schematic diagram.

[0028] Figure 8 is the driving system installation size inspection schematic diagram.

[0029] The drawings show that: 1. slide ring, 2. driving lug plate, 3. driving beam, 4. driving beam support, 5. tower column, 6. driving arm, 7. connecting arm, 8. articulated plate, 9. U-shaped joint, 10. laser measuring instrument, 11. square steel pipe. DETAILED DESCRIPTION

[0030] The present application will be further described in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present application and implement it.

[0031] The embodiment of the present application provides a sliding ring driving system installation method, in combination with the accompanying drawings Figures 1-8 As shown, the following steps are completed:

[0032] S1, measuring the height of the sliding ring driving beam support 4, and making the center of the driving beam support 4 and the center of the driving lug plate 2 on the outer ring of the sliding ring 1 at the same height;

[0033] Positioning the laser measuring instrument 10 above the driving lug plate 2, wherein:

[0034] H1 is the elevation of the laser measuring instrument 10, and H2 is half of the height of the driving lug plate 2;

[0035] Marking at a position H = H1 + H2 below the laser positioning point on the tower column 5, and making the center of the driving beam support 4 at the marking;

[0036] S2, adjusting the driving beam support 4 so that the two driving beam supports 4 are parallel;

[0037] Abutting a square steel pipe 11 against the surface of the two driving beam supports 4, slowly rotating the driving beam support 4 until the two driving beam supports 4 are parallel, and positioning and welding the driving beam support 4;

[0038] S3, determining the center of the sliding ring 1 and marking on the square steel pipe 11;

[0039] Abutting the square steel pipe 11 against the surface of the two driving beam supports 4, moving the laser measuring instrument 10 arranged on the top surface of the square steel pipe 11 along the square steel pipe 11, finding the shortest distance between the square steel pipe 11 and the sliding ring 1, determining the center of the sliding ring, then marking on the square steel pipe 11, and recording the distances L1 and L2 from the two driving beam supports 4 to the marking, respectively;

[0040] S4, adjusting the orientation of the sliding ring 1 so that the driving lug plates 2 on both sides of the outer ring of the sliding ring 1 are symmetrically arranged;

[0041] Respectively measuring the distances between the two driving lug plates 2 on the outer ring of the sliding ring 1 and the marking on the square steel pipe 11, and checking whether the distances are equal;

[0042] If not, the orientation of the sliding ring 1 needs to be rotated until the distances between the two driving lug plates 2 and the marking on the square steel pipe 11 are equal;

[0043] S5, the driving beam 3, connecting arm 7, hinge plate 8 pre-assembled together, the driving arm 6 one end through the U-shaped joint 9 and hinge plate 8 connection, in the middle position of two driving arm 6 and hinge plate 8 connected shaft hole marked as the center of driving beam 3;

[0044] S6, the driving beam 3 close to the surface of the driving beam support 4 group, the marked driving beam 3 center and the position of L1 and L2 marked in the above step S3 coincide, complete the positioning of driving beam 3, the other end of the driving arm 6 through the U-shaped joint 9 and the outer ring of the slip ring 1 connection, the driving beam 3 and driving beam support 4, driving arm 6 both ends of the connection point welding fixed;

[0045] S7, the measurement of the center of the driving beam 3 and the center of the slip ring driving ear plate 2 between the distance deviation Z in the direction of height, the measurement of the center line of the slip ring 1 and the center line of the driving beam 3 between the distance deviation Y in the horizontal direction, the measurement of the distance X1 and X2 between the two diagonal line hinge shaft center of the driving system, the deviation between the two distance X1, X2 is checked, after the above distance deviation meets the size accuracy control requirements, the final welding fixed is completed.

[0046] The above described embodiments are only for fully illustrating the preferred embodiments of the present application, the protection scope of the present application is not limited to this. The equivalent replacement or transformation made by the person skilled in the art on the basis of the present application is within the protection scope of the present application. The protection scope of the present application is subject to the claims.

Claims

1. A method for installing a slip ring drive system, comprising the following steps, characterized by: S1. Measuring the height of the slip ring drive beam support and making the center of the drive beam support level with the center of the drive lug on the outer ring of the slip ring; Positioning a laser measuring instrument above the drive lug, wherein: H1 = the elevation of the laser measuring instrument, and H2 = half the height of the drive lug; Marking a point below the laser positioning point on the tower column by a distance H = H1 + H2, and making the center of the drive beam support located at the marked point; S2. Adjusting the drive beam support to make the two drive beam supports parallel; Bringing a square steel tube against the surface of the two drive beam supports, slowly rotating the drive beam support until the two drive beam supports are parallel, and positionally welding the drive beam support; S3. Determining the center of the slip ring and marking a point on the square steel tube; Bringing the square steel tube against the surface of the two drive beam supports, moving the laser measuring instrument provided on the top surface of the square steel tube along the square steel tube to find the shortest distance between the square steel tube and the slip ring, determining the center of the slip ring, and then marking a point on the square steel tube, and recording the distances L1 and L2 from the two drive beam supports to the marked point, respectively; S4. Adjusting the orientation of the slip ring to make the drive lugs on both sides of the outer ring of the slip ring symmetrically arranged; Measuring the distances between the two drive lugs on the outer ring of the slip ring and the marked points on the square steel tube, respectively, and checking whether the distances are equal; If not, the orientation of the slip ring needs to be rotated until the distances between the two drive lugs and the marked points on the square steel tube are equal; S5. Pre-assembling the drive beam, the connecting arm, and the hinged plate together, connecting one end of the drive arm to the hinged plate through a U-shaped joint, and marking the center of the drive beam at the middle position of the shaft hole where the two drive arms are connected to the hinged plate; S6. Bringing the drive beam close to the surface of the drive beam support for alignment, making the marked center of the drive beam coincide with the positions of the L1 and L2 marks in step S3, completing the positioning of the drive beam, connecting the other end of the drive arm to the outer ring of the slip ring through a U-shaped joint, and spot welding the connection between the drive beam and the drive beam support and the two ends of the drive arm; S7. Measuring the distance deviation Z between the center of the drive beam and the center of the drive lug of the slip ring in the height direction, measuring the distance deviation Y between the center line of the slip ring and the center line of the drive beam in the horizontal direction, measuring the distances X1 and X2 between the centers of the two diagonal hinged shafts of the drive system, checking the deviation between the two distances X1 and X2, and completing the final welding and fixing after the distance deviations meet the dimensional accuracy control requirements.

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