A cable control and protection device for positioning piles of drilling rigs

Abstract

The present invention discloses a cable control and protection device for positioning piles of drilling rigs, which belongs to the technical field of water transport engineering construction vessels. A cable control and protection device for positioning piles of drilling rigs comprises a bracket, the inner wall of the bracket is slidably connected to a positioning pile body, the surface of the positioning pile body is fixedly connected to a steel cable, the surface of the steel cable is slidably connected to a pulley rotatably connected to the bracket, the surface of the steel cable is slidably connected to a control assembly, the front of the bracket is fixedly installed with a fixed plug, the control assembly is composed of a centrifugal assembly, a deceleration assembly and a buffer assembly, the deceleration assembly is arranged on the front and back sides of the centrifugal assembly, and the buffer assembly is arranged on the side of the deceleration assembly away from the centrifugal assembly. The above structure solves the problem of being unable to judge whether the lowering speed of the steel cable is stalled, the positioning pile cannot be controlled when not in use, and forcibly locking the steel cable will cause it to be subjected to excessive force and deformed or even broken, causing the positioning pile to detach.

Description

Technical Field

[0001] The present invention relates to the technical field of water transport engineering construction vessels, and more particularly to a cable control and protection device for positioning piles of a drilling rig vessel. Background Art

[0002] A drilling rig is a down-the-hole drill equipped with a special hammer and equipped with drilling equipment arranged on a motor ship or barge. The drilling rig is usually restrained by positioning piles. During construction, the drilling rig will be affected, and the positioning piles restrain the drilling rig to prevent the hull from moving. The positioning piles use steel cables to control their position. After the positioning piles are stabilized, the steel cables will be straightened to strengthen the restraint of the drilling rig.

[0003] The drilling rigs currently on the market cannot judge the speed at which the steel cable is lowered, and when the positioning piles are not in use, the positioning piles fall and stall and cannot be controlled. Forcible speed limits will cause the steel cable to be subjected to excessive stress, deform, or even break, resulting in the detachment of the positioning piles. Summary of the Invention

[0004] 1. Technical Problems to be Solved by the Present Invention

[0005] The embodiments of the present invention provide a cable control and protection device for a drilling rig positioning pile to solve the problems raised in the above background technology:

[0006] It is impossible to judge whether the lowering speed of the steel cable has stalled, and when the positioning pile is not in use, the fall of the positioning pile cannot be controlled. Forcibly locking the steel cable will cause it to be subjected to excessive force and deform or even break, causing the positioning pile to detach.

[0007] 2. Technical solution

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A cable control and protection device for a drilling rig positioning pile comprises a bracket, an inner wall of the bracket is slidably connected to a positioning pile body, a surface of the positioning pile body is fixedly connected to a steel cable, a surface of the steel cable is slidably connected to a pulley rotatably connected to the bracket, a surface of the steel cable is slidably connected to a control assembly, and a fixed plug is fixedly installed on the front of the bracket.

[0010] The control assembly is composed of a centrifugal assembly, a deceleration assembly and a buffer assembly. The centrifugal assembly determines the descending speed of the positioning pile body;

[0011] The deceleration assembly is arranged on both sides of the centrifugal assembly, and the deceleration assembly uses friction to slow down the descent speed to prevent the positioning pile body from being separated;

[0012] The buffer assembly is arranged on a side of the deceleration assembly away from the centrifugal assembly. The buffer assembly converts the properties of the pulley and is used for buffering to prevent the steel cable from being broken due to excessive force.

[0013] Preferably, the centrifugal assembly includes a circular wheel, a wheel sleeve is fixedly installed on the outer surface of the circular wheel, the surface of the wheel sleeve is slidably connected to the steel cable, a straight rod is fixedly installed on the inner surface of the circular wheel at its diameter, a connecting column is fixedly installed on the surface of the straight rod, a cross rod is fixedly installed on the left and right sides of the connecting column, the cross rod is in a compressed state, a centrifugal spring is fixedly installed on the surface of the connecting column along the direction of the straight rod, a slider is fixedly installed on the end of the centrifugal spring away from the connecting column, and arc blocks are fixedly installed on the front and back sides of the slider.

[0014] Preferably, the deceleration assembly includes a bowl-mounted block, the side of the arc block away from the slider abuts against the bowl-mounted block, the side of the bowl-mounted block away from the arc block is fixedly mounted with a first friction disc, a cross socket is fixedly mounted at the axis of the first friction disc, a control block is fixedly mounted on the side of the first friction disc away from the bowl-mounted block, an annular groove is provided on the side of the control block, a rubber ring is clamped on the side of the control block and located in the annular groove, a sleeve is fixedly mounted on the side of the rubber ring away from the control block, a push rod is abutted on the side of the control block away from the first friction disc, and a second friction disc is fixedly mounted on the outer surface of the sleeve.

[0015] Preferably, the buffer assembly includes a block, and the left and right sides of the block are hinged with linkage rods, and the end of the linkage rod away from the block is hinged with a blocking block, and the side of the blocking block away from the second friction disc abuts against a push block, and the push block is fixedly installed with a high-pressure spring on the side away from the blocking block, and a telescopic rod is passed through the high-pressure spring, and the end of the high-pressure spring away from the push block is fixedly connected with a slide plate, one end of the telescopic rod is fixedly connected to the push block, and the other end of the telescopic rod is fixedly connected to the slide plate, and the side of the slide plate close to the high-pressure spring is fixedly installed with a connecting block, and a fixing rod is passed through the slide plate, and the side of the block away from the top rod abuts against the fixing rod, and the side of the blocking block away from the push block abuts against a ring, and the side of the ring away from the blocking block is fixedly installed with a clamping plug, and the surface of the fixing rod is plugged into the fixed plug block.

[0016] Preferably, the surface of the cross rod is slidingly connected to the cross socket, the surface of the first friction disc is rotatably connected to the cross socket, two rubber rings are provided in the sleeve, and are arranged along the direction of the sleeve pipeline, the end of the push rod away from the control block is fixedly connected to the block, the side of the blocking block close to the sleeve ring is slidingly connected to the second friction disc, a slideway is provided at the connection between the second friction disc and the blocking block, the blocking block is embedded in the slideway to prevent the blocking block from being squeezed by the push block and changing its position, the push rod is fixedly connected to the second friction disc at the side close to the blocking block and at the center of the push rod, and the surface of the clamping plug is slidably connected to the wheel sleeve.

[0017] 3. Beneficial effects

[0018] (1) The present invention is provided with a centrifugal assembly. The faster the positioning pile body descends, the faster the rotation speed of the wheel sleeve will be. The slider on the straight rod of the inner ring wheel will be subjected to centrifugal force. The centrifugal force is used to judge the falling speed of the positioning pile body. The above structure solves the problem of being unable to judge the stall of the positioning pile body by judging the falling state of the positioning pile body.

[0019] (2) The present invention is provided with a deceleration component. When the moving speed of the steel cable is too fast, the bowl-mounted block drives the first friction disc to enter the interior of the second friction disc, and utilizes the friction resistance to reduce the rotation speed of the bowl-mounted block. By adopting the above structure, the centrifugal force is utilized to increase the friction contact area, which can also play a protective role in the non-working state, thereby reducing the falling speed of the positioning pile body, and solving the problem that it is impossible to provide limiting protection based on the stall of the positioning pile body.

[0020] (3) The present invention is provided with a buffer assembly, the block uses the linkage rod to pull the blocking block, the high-pressure spring pops out the push block, so that the ring clamps the steel cable, and then the block moves toward the direction of the slide and pushes the fixed rod, and the fixed rod is squeezed out of the slide. At this time, the control assembly is transformed into a movable pulley, which can move when the positioning pile body falls, and is used for buffering, thereby solving the problem that the steel cable is deformed or even broken due to excessive force, resulting in the positioning pile body being unable to be positioned normally and being detached. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 Schematic diagram of the control assembly structure of the present invention.

[0023] Figure 3 It is an exploded schematic diagram of the control assembly structure of the present invention.

[0024] Figure 4 It is a schematic diagram of the annular wheel structure of the present invention.

[0025] Figure 5 It is a schematic diagram of the wheel sleeve structure of the present invention.

[0026] Figure 6 This is a schematic cross-sectional view of the first friction disc structure of the present invention.

[0027] Figure 7 It is a schematic diagram of the clamping and plugging structure of the present invention.

[0028] Figure 8 Schematic diagram of the connection block structure of the present invention.

[0029] Description of the numbers in the figure:

[0030] 1. Bracket; 2. Positioning pile; 3. Steel cable; 4. Pulley; 5. Control assembly; 6. Fixed plug; 7. Centrifugal assembly; 701. Ring wheel; 702. Wheel sleeve; 703. Straight rod; 704. Connecting column; 705. Cross plug; 706. Centrifugal spring; 707. Slider; 708. Arc block; 8. Speed ​​reduction assembly; 801. Bowl block; 802. First friction disc; 803. Cross socket; 8 04. Position control block; 805. Annular groove; 806. Rubber ring; 807. Sleeve; 808. Push rod; 809. Second friction disc; 9. Buffer assembly; 901. Block; 902. Linkage rod; 903. Block; 904. Push block; 905. High-pressure spring; 906. Telescopic rod; 907. Connecting block; 908. Slide plate; 909. Fixed rod; 910. Ring; 911. Clamping plug. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Example 1:

[0033] See also Figure 1-5 A cable control and protection device for a drilling rig positioning pile includes a bracket 1, a positioning pile body 2 is slidably connected to the inner wall of the bracket 1, a steel cable 3 is fixedly connected to the surface of the positioning pile body 2, a pulley 4 rotatably connected to the bracket 1 is slidably connected to the surface of the steel cable 3, a control assembly 5 is slidably connected to the surface of the steel cable 3, and a fixed plug 6 is fixedly installed on the front of the bracket 1.

[0034] The control assembly 5 is composed of a centrifugal assembly 7, a deceleration assembly 8 and a buffer assembly 9. The centrifugal assembly 7 determines the descending speed of the positioning pile body 2;

[0035] The deceleration assembly 8 is arranged on both sides of the centrifugal assembly 7. The deceleration assembly 8 uses friction to slow down the descent speed to prevent the positioning pile body 2 from being separated.

[0036] The buffer assembly 9 is arranged on a side of the deceleration assembly 8 away from the centrifugal assembly 7. The buffer assembly 9 converts the properties of the pulley to provide a buffer to prevent the steel cable 3 from being broken due to excessive force.

[0037] The centrifugal assembly 7 includes a circular wheel 701, a wheel sleeve 702 is fixedly installed on the outer surface of the circular wheel 701, and the surface of the wheel sleeve 702 is slidably connected to the steel cable 3. A straight rod 703 is fixedly installed on the inner surface of the circular wheel 701 and located at its diameter. A connecting column 704 is fixedly installed on the surface of the straight rod 703. Cross rods 705 are fixedly installed on the left and right sides of the connecting column 704. The cross rod 705 is in a compressed state. A centrifugal spring 706 is fixedly installed on the surface of the connecting column 704 along the direction of the straight rod 703. A slider 707 is fixedly installed on the end of the centrifugal spring 706 away from the connecting column 704. The surface of the straight rod 703 is slidably connected to the slider 707, and arc blocks 708 are fixedly installed on the front and back sides of the slider 707.

[0038] The present invention is provided with a centrifugal component 7, which will pull the steel cable 3 when the positioning pile body 2 descends, and the descending speed of the positioning pile body 2 will be reflected on the wheel sleeve 702. The steel cable 3 causes the wheel sleeve 702 to rotate. The faster the positioning pile body 2 descends, the faster the rotation speed of the wheel sleeve 702 will be. The wheel sleeve 702 drives the annular wheel 701 to rotate, and the slider 707 on the inner ring straight rod 703 of the annular wheel 701 will be subjected to centrifugal force. The slider 707 will stretch the centrifugal spring 706 and move along the straight rod 703 toward the direction of the annular wheel 701. The centrifugal force is used to judge the falling speed of the positioning pile body 2. The above structure solves the problem of being unable to judge the stall of the positioning pile body 2 by judging the falling state.

[0039] Example 2:

[0040] See also Figure 3 and 6 , combined with the basis of Example 1, the difference is that the deceleration assembly 8 includes a bowl-mounted block 801, and the side of the arc block 708 away from the slider 707 abuts against the bowl-mounted block 801, and the side of the bowl-mounted block 801 away from the arc block 708 is fixedly mounted with a first friction disc 802, and a cross socket 803 is fixedly mounted at the axis of the first friction disc 802, and a control block 804 is fixedly mounted on the side of the first friction disc 802 away from the bowl-mounted block 801, and an annular groove 805 is provided on the side of the control block 804, and a rubber ring 806 is clamped on the side of the control block 804 and located at the annular groove 805, and a sleeve 807 is fixedly mounted on the side of the rubber ring 806 away from the control block 804, and a push rod 808 abuts on the side of the control block 804 away from the first friction disc 802, and a second friction disc 809 is fixedly mounted on the outer surface of the sleeve 807.

[0041] The surface of the cross rod 705 is slidingly connected to the cross socket 803, and the surface of the first friction disc 802 is rotatably connected to the cross socket 803. Two rubber rings 806 are provided in the sleeve 807 and are arranged along the pipeline direction of the sleeve 807. The end of the push rod 808 away from the control block 804 is fixedly connected to the block 901, and the side of the blocking block 903 close to the ring 910 is slidingly connected to the second friction disc 809. A slide is provided at the connection between the second friction disc 809 and the blocking block 903, and the blocking block 903 is embedded in the slide to prevent the blocking block 903 from being squeezed by the push block 904 and changing its position. The push rod 808 is fixedly connected to the second friction disc 809 near the side of the blocking block 903 and at the center of the push rod 808. The surface of the clamping plug 911 is slidably connected to the wheel sleeve 702.

[0042] The present invention is provided with a deceleration component 8. When the slider 707 moves toward the ring wheel 701, the slider 707 drives the arc block 708 to move. The arc block 708 squeezes the bowl-mounted block 801 to make it away from the ring wheel 701. The cross rod 705 and the cross socket 803 cooperate to make the bowl-mounted block 801 and the arc block 708 rotate synchronously, and the bowl-mounted block 801 moves along the cross rod 705. When the moving speed of the steel cable 3 is too fast, since there are two rubber rings 806 inside the sleeve 807, the control block 804 will move to the position of the other rubber ring 806. The rubber ring 806 is provided inside the sleeve 807. The circular ring 806 clamps the annular groove 805 to fix the position of the control block 804, so as to fix the contact area between the first friction disc 802 and the second friction disc 809 to avoid rebound. The bowl-mounted block 801 drives the first friction disc 802 into the interior of the second friction disc 809, and uses the friction resistance to reduce the rotation speed of the bowl-mounted block 801, that is, the rotation speed of the wheel sleeve 702. The above structure uses centrifugal force to increase the friction contact area, which can also play a protective role in the non-working state, thereby reducing the falling speed of the positioning pile body 2, and solving the problem that it is impossible to limit the protection based on the stall of the positioning pile body 2.

[0043] Example 3:

[0044] See also Figure 7-8, combined with the basis of Example 2, the difference is that the buffer assembly 9 includes a block 901, and the left and right sides of the block 901 are hinged with a linkage rod 902, and the end of the linkage rod 902 away from the block 901 is hinged with a blocking block 903, and the side of the blocking block 903 away from the second friction disk 809 is abutted with a push block 904, and the side of the push block 904 away from the blocking block 903 is fixedly installed with a high-pressure spring 905, a telescopic rod 906 is inserted into the high-pressure spring 905, and the end of the high-pressure spring 905 away from the push block 904 is fixedly connected to a slide plate 908. One end of the telescopic rod 906 is fixedly connected to the push block 904, and the other end of the telescopic rod 906 is fixedly connected to the slide 908. A connecting block 907 is fixedly installed on the side of the slide 908 close to the high-pressure spring 905. A fixing rod 909 is passed through the slide 908. The side of the block 901 away from the top rod 808 is in contact with the fixing rod 909, and the side of the blocking block 903 away from the push block 904 is in contact with the ring 910. The side of the ring 910 away from the blocking block 903 is fixedly installed with a clamping plug 911, and the surface of the fixing rod 909 is plugged into the fixed plug block 6.

[0045] The present invention is provided with a buffer assembly 9, and the push rod 808 is pushed by the control block 804 in the direction away from the first friction disk 802, and the push rod 808 pushes the block 901, and the block 901 uses the linkage rod 902 to pull the blocking block 903. Since the blocking block 903 is embedded in the track on the second friction disk 809, the blocking block 903 will not be pushed and changed in position by the push block 904. Subsequently, the blocking block 903 moves and no longer contacts the push block 904. Since the high-pressure spring 905 is in a compressed state at the beginning, the high-pressure spring 905 pops out the push block 904, and the telescopic rod 906 guides the push block 904 so that the push block 904 can be accurately pushed to the ring 910. The push block 904 pushes the ring 910 so that the clamping insert 911 is moved to the center of the wheel sleeve 702, and the ring 910 The steel cable 3 is clamped and controlled to prevent the steel cable 3 from sliding on the surface of the wheel sleeve 702 and not driving the wheel sleeve 702 to rotate. At the same time, the block 901 moves in the direction of the slide plate 908 and pushes the fixed rod 909, and the fixed rod 909 is squeezed out and separated from the slide plate 908. At this time, the control assembly 5 is transformed into a movable pulley, which can move when the positioning pile body 2 falls, and is used for buffering to avoid directly locking the steel cable 3 and causing the steel cable 3 to be deformed or even broken by the tension of the positioning pile body 2. With the above structure, the steel cable 3 is engaged to form a whole with the control assembly 5, and the control assembly 5 is transformed from a fixed pulley to a movable pulley. The control assembly 5 can slide upward inside the bracket 1 to provide buffering, thereby solving the problem that the steel cable 3 is deformed or even broken due to excessive force, and the positioning pile body 2 cannot be positioned normally.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cable control and protection device for a drilling rig positioning pile, comprising a bracket, a positioning pile body slidably connected to the inner wall of the bracket, a steel cable fixedly connected to the surface of the positioning pile body, a pulley rotatably connected to the bracket slidably connected to the surface of the steel cable, a control and gripping assembly slidably connected to the surface of the steel cable, and a fixed plug fixedly mounted on the front of the bracket, characterized in that: The control assembly consists of a centrifugal assembly, a deceleration assembly and a buffer assembly. The centrifugal assembly determines the descending speed of the positioning pile; The deceleration assembly is arranged on both sides of the centrifugal assembly, and the deceleration assembly uses friction to slow down the descent speed to prevent the positioning pile from detaching; The buffer assembly is arranged on the side of the deceleration assembly away from the centrifugal assembly. The buffer assembly converts the pulley properties of the cable control assembly to buffer and prevent the steel cable from being broken due to excessive force. The centrifugal assembly includes a circular wheel, a wheel sleeve is fixedly installed on the outer surface of the circular wheel, the surface of the wheel sleeve is slidably connected to the steel cable, a straight rod is fixedly installed on the inner surface of the circular wheel and located at its diameter, a connecting column is fixedly installed on the surface of the straight rod, a cross rod is fixedly installed on the left and right sides of the connecting column, a centrifugal spring is fixedly installed on the surface of the connecting column and along the direction of the straight rod, a slider is fixedly installed on the end of the centrifugal spring away from the connecting column, and arc blocks are fixedly installed on the front and back sides of the slider; The deceleration assembly includes a bowl-mounted block, a side of the arc block away from the slider abuts against the bowl-mounted block, a first friction disc is fixedly mounted on the side of the bowl-mounted block away from the arc block, a cross socket is fixedly mounted at the axis of the first friction disc, a control block is fixedly mounted on the side of the first friction disc away from the bowl-mounted block, an annular groove is provided on the side of the control block, a rubber ring is clamped on the side of the control block and located in the annular groove, a sleeve is fixedly mounted on the side of the rubber ring away from the control block, a push rod is abutted on the side of the control block away from the first friction disc, and a second friction disc is fixedly mounted on the outer surface of the sleeve; The buffer assembly includes a block, and the left and right sides of the block are hinged with a linkage rod, and the end of the linkage rod away from the block is hinged with a blocking block, and the side of the blocking block away from the second friction disc abuts against a push block, and a spring is fixedly installed on the side of the push block away from the blocking block, and a telescopic rod is passed through the spring, and the end of the spring away from the push block is fixedly connected to a slide plate, one end of the telescopic rod is fixedly connected to the push block, and the other end of the telescopic rod is fixedly connected to the slide plate, and a connecting block is fixedly installed on the side of the slide plate close to the spring, and an end of the connecting block away from the slide plate is fixedly connected to the second friction disc, and a fixing rod is passed through the slide plate, and the side of the block away from the top rod abuts against the fixing rod, and the side of the blocking block away from the push block abuts against a collar, and a clamping plug is fixedly installed on the side of the collar away from the blocking block, and the surface of the fixing rod is plugged into the fixed plug block; The surface of the cross plug is slidably connected to the cross plug hole. Two rubber rings are provided in the sleeve and arranged along the direction of the sleeve pipeline. The end of the push rod away from the control block is fixedly connected to the block. The side of the blocking block close to the ring is slidably connected to the second friction disc. A slideway is provided at the connection between the second friction disc and the blocking block. The blocking block is embedded in the slideway to prevent the blocking block from being squeezed by the push block and the position change. The surface of the clamping plug is slidably connected to the wheel sleeve; when the fixed rod is pushed out of the fixed plug by the block, the control assembly can move up and down along the bracket.

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