Special rope stabilizer for self-back derrick type workover rig
By designing a wire rope stabilizer on the self-backed derrick type workover rig, the problems of wire rope vibration and installation difficulties are solved by using roller shafts and tension springs to stabilize the wire rope, achieving neat winding and efficient operation.
Patent Information
- Application Number
- CN202520044864.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-01-09
AI Technical Summary
At high speeds, the wire rope of a self-backed derrick workover rig is prone to violent vibration, resulting in uneven winding, which affects its service life and creates safety hazards. In addition, traditional rope stabilizers are inconvenient to install or disassemble, which affects operational efficiency.
A special wire rope stabilizer for self-backed derrick workover rigs has been designed, including a side plate, roller shaft, roller, and reset adjustment assembly. The roller shaft and tension spring roll in an open groove to provide a reaction force to stabilize the wire rope and prevent vibration.
It effectively prevents the wire rope from shaking at high speeds, ensures neat winding, extends service life, improves work efficiency, and is easy to install and disassemble, adapting to frequent site relocation needs.
Smart Images
Figure CN223633003U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of oilfield workover operation, in particular to a self-back-stand type workover rig dedicated rope stabilizer. BACKGROUND
[0002] In the process of oilfield workover operation, the drum winch of the self-back-stand type workover rig is prone to severe shaking when winding the rope at high speed due to the influence of its own gravity, the traction of the drum and other factors, which leads to the phenomenon of uneven rope arrangement such as rope skipping and back rope. This phenomenon not only directly affects the service life of the wire rope, but also causes the failure of the anti-collision device and the top collision of the traveling block, and the impact load generated when the back rope suddenly falls down will have a serious impact on the safe use of other equipment. In order to solve these problems, most workover rig operators will choose to stop and repair, which will reduce the operation efficiency.
[0003] At present, the self-back-stand type workover rig basically does not install a rope stabilizer, and the main reasons are as follows: (1) the structure of the self-back-stand type workover rig is relatively complex and compact, and there is not enough space between its derrick and drum to install a traditional rope stabilizer; (2) the traditional rope stabilizer needs to bear the entire radial component force of the wire rope, so the bearing capacity of the installation and fixing position is required to be higher; (3) the cycle of workover operation is usually about 5-10 days, which means that the workover rig needs to be frequently transferred, and the traditional rope stabilizer is complex in structure and inconvenient to disassemble and assemble, so it needs to be disassembled every time it is moved, which is time-consuming and laborious. CONTENT OF THE INVENTION
[0004] One of the purposes of the present application is to provide a self-back-stand type workover rig dedicated rope stabilizer, which can effectively solve the problem that the structure of the self-back-stand type workover rig cannot install a traditional rope stabilizer due to its complexity and compactness, and can save production and use costs, and the device is convenient to install, can quickly solve the problem, shorten the maintenance cycle, and improve the work efficiency.
[0005] The technical solution of the present application is:
[0006] The utility model provides a special stable rope device of self back derrick type workover rig, including two side plates, gyro wheel axle, gyro wheel and two sets of reset adjusting assembly, two side plates are spaced apart respectively and are installed in gyro wheel winch, gyro wheel axle sets up in the positive overhead of gyro wheel in gyro wheel winch, and two ends are connected to one end of two side plates can come and go in roll respectively, gyro wheel can be linear reciprocatingly installed on gyro wheel axle for supporting the steel wire rope winding on gyro wheel, the steel wire rope is movably clamped on the wheel groove of gyro wheel for driving gyro wheel rotates and linearly moves on gyro wheel axle, one end of reset adjusting assembly can be telescopic transmission and is connected on one end of gyro wheel axle, and the other end is connected on the other end of corresponding side plate.
[0007] As a kind of technical scheme of the application, L-shaped open chute is formed in one end of each side plate;One end of gyro wheel axle is rollably arranged in the open chute.
[0008] As a kind of technical scheme of the application, the open chute includes a horizontal channel and a vertical channel which are sequentially connected in L shape;The horizontal channel extends along the length direction of the side plate and penetrates through the opposite sides of the side plate;The vertical channel extends along the height direction of the side plate and penetrates through the opposite sides and the top of the side plate.
[0009] As a kind of technical scheme of the application, an inner baffle and a rolling bearing are sequentially sleeved on one end of the gyro wheel axle, and a fixed bolt is coaxially arranged at the end; An outer baffle and a nut are sequentially sleeved on the fixed bolt; The outer baffle and the inner baffle are respectively located at the opposite outer sides of the open chute; The rolling bearing is rollably arranged in the open chute and located between the outer baffle and the inner baffle.
[0010] As a kind of technical scheme of the application, the diameter of the rolling bearing is smaller than the diameter of the inner baffle and the diameter of the outer baffle.
[0011] As a kind of technical scheme of the application, the inner baffle and the outer baffle are both circular plates.
[0012] As a kind of technical scheme of the application, a fixing plate is arranged on the side wall of the other end of the side plate; The reset adjusting assembly includes an adjusting pull rod, a tension spring and a pull tab; One end of the adjusting pull rod extends through the fixing plate with adjustable length; One end of the tension spring is connected to one end of the adjusting pull rod, and the other end is connected to one end of the pull tab; The other end of the pull tab is sleeved on the fixed bolt, and is located between the nut and the end of the fixed bolt.
[0013] As a technical scheme of the present application, the adjusting pull rod comprises an adjusting screw rod and a nut; the adjusting screw rod is connected to the fixing plate through the nut.
[0014] As a technical scheme of the present application, the diameter of the pull piece gradually increases from the direction close to the tension spring to the direction close to the fixing bolt.
[0015] The present application has the following advantages:
[0016] According to the specific circumstances, the device is installed on the shroud above the drum, the steel wire rope of the drum winch leading to the wire rope wheel on the top of the derrick is pressed on the wheel groove of the roller, and the roller shaft is forced to produce a certain displacement under the pressure of the steel wire rope. At the same time, the tension spring at both ends of the roller shaft will give the steel wire rope a counter force, i.e. a pulling force. In this way, under the condition of light load and high speed of the drum, the problem of disordered rope arrangement due to the violent shaking of the steel wire rope between the drum and the crown block will not occur, so that the rope arrangement is neat and orderly, the service life of the steel wire rope is prolonged, the cost is saved, and the work efficiency is improved. After the operation well is completed, the tension spring on the side plate is removed, and the roller shaft assembly can be quickly removed from the open sliding groove of the side plate and placed on the derrick, so that the well site can be quickly converted. As can be seen, the device has the advantages of simple and practical structure, convenient installation and removal, avoidance of the problem of sudden jumping of the drilling and workover steel wire rope, neat winding of the drilling and workover steel wire rope under high speed rotation of the drum, prolongation of the service life of the steel wire rope, elimination of safety hazards, and improvement of work efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical schemes of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.
[0018] Figure 1 The present application provides a self-back derrick type workover rig special rope stabilizer schematic diagram.
[0019] Figure 2 The present application provides a self-back derrick type workover rig special rope stabilizer first angle schematic diagram.
[0020] Figure legend: 1-side plate; 2-roller shaft; 3-roller; 4-open sliding groove; 5-inner baffle; 6-rolling bearing; 7-fixing bolt; 8-outer baffle; 9-nut; 10-fixing plate; 11-adjusting screw rod; 12-nut; 13-tension spring; 14-pull piece. DETAILED DESCRIPTION
[0021] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the accompanying drawings to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations.
[0022] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.
[0023] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0024] In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.
[0025] In addition, in the present application, unless otherwise explicitly specified and limited, the first feature above or below the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature above, above and above the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature below, below and below the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0026] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0027] In the description of the present application, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "set", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0028] Embodiment:
[0029] Please refer to Figure 1 , and refer to Figure 2 , the present application provides a self-back frame type well repair machine special rope stabilizer, including two side plates 1, roller shaft 2, roller 3 and two groups of reset adjusting components; wherein, two side plates 1 are respectively spaced apart and installed on the drum winch, and L-shaped open slot 4 is formed on one end of each side plate 1; at the same time, the roller shaft 2 is arranged above the drum in the drum winch, and the two ends are respectively connected to the open slot 4 on one end of the two side plates 1 and can roll back and forth; in addition, the roller 3 is linearly reciprocatingly installed on the roller shaft 2, used for supporting the steel wire rope wound on the drum; the steel wire rope is movably clamped on the wheel groove of the roller 3, used for driving the roller 3 to rotate and linearly move on the roller shaft 2; and one end of each reset adjusting component is telescopically connected to one end of the roller shaft 2, and the other end is connected to the other end of the corresponding side plate 1.
[0030] Further, the open slot 4 includes a horizontal channel and a vertical channel which are sequentially communicated and present L shape; wherein, the horizontal channel extends along the length direction of the side plate 1 and penetrates through the opposite sides of the side plate 1; at the same time, the vertical channel extends along the height direction of the side plate 1 and penetrates through the opposite sides and the top of the side plate 1.
[0031] At the same time, the end of the roller shaft 2 is sequentially sleeved with an inner baffle 5 and a rolling bearing 6, and a fixed bolt 7 coaxially arranged is connected at the end; the fixed bolt 7 is sequentially sleeved with an outer baffle 8 and a nut 9; the outer baffle 8 and the inner baffle 5 are respectively located at the opposite outer sides of the open slot 4; the rolling bearing 6 is rollably arranged on the horizontal channel, and it is between the outer baffle 8 and the inner baffle 5, the outer baffle 8 and the inner baffle 5 are used for limiting the rolling bearing 6.
[0032] It should be noted that, in the present embodiment, the diameter of the rolling bearing 6 is smaller than the diameter of the inner baffle 5 and the diameter of the outer baffle 8. And the inner baffle 5 and the outer baffle 8 are both circular plates.
[0033] Further, a fixing plate 10 is arranged on the side wall of the other end of the side plate 1, and a Φ11 hole for connecting the adjusting pull rod is arranged on the fixing plate 10; the reset adjusting assembly comprises the adjusting pull rod, the tension spring 13 and the pull tab 14; wherein the adjusting pull rod comprises the adjusting screw 11 and the nut 12, the adjusting screw 11 is connected to the fixing plate 10 through the nut 12, and one end of the adjusting screw 11 extends through the fixing plate 10 and is connected to one end of the tension spring 13; the other end of the tension spring 13 is connected to one end of the pull tab 14; the other end of the pull tab 14 is sleeved on the fixing bolt 7, and is between the nut 9 and the end of the fixing bolt 7.
[0034] Therefore, the rolling bearings 6 at the two ends of the roller shaft 2 are controlled to roll on the open grooves 4 of the side plate 1 under the joint action of the inner baffle 5 and the outer baffle 8, and the roller shaft 2 is connected to the adjusting pull rod on the side plate 1 through the pull tabs 14 and the tension springs 13 at the two ends. Under the action of the radial force of the winch rope and the change of the winding position of the drum winch rope, the rolling bearings 6 at the two ends of the roller shaft 2 roll back and forth on the open grooves 4 of the side plate 1, and the rollers 3 rotate at high speed on the roller shaft 2 and move back and forth along the axial direction of the roller shaft 2. In this way, the phenomenon that the ropes are arranged in disorder due to the jumping of the ropes during the winding of the drum winch of the self-back-iron-well-type workover machine at high speed can be effectively avoided during the oilfield workover operation.
[0035] It should be noted that in the embodiment, the diameter of the pull tab 14 gradually increases from the direction close to the tension spring 13 to the direction close to the fixing bolt 7.
[0036] The device is fixed in a simple way. First, the supports of the two side plates 1 in the device are welded at corresponding positions of the two housings of the drum winch, and the two side plates 1 are connected and fixed with the welded supports by six M12 mm bolts. Then, the adjusting pull rod, the tension spring 13, the roller 3, the roller shaft 2, the rolling bearing 6, the inner baffle 5, the outer baffle 8, the pull tab 14, the fixing bolt 7 and other accessories are installed in place. The steel wire rope between the drum winch and the fast rope wheel at the top of the derrick is pressed on the wheel groove of the roller 3, so that the roller shaft 2 is displaced in the open slide groove 4 of the side plate 1 under the pressure of the steel wire rope, and the tension spring 13 at both ends of the roller shaft 2 provides a counterforce, i.e. a pulling force, to the steel wire rope through the roller shaft 2 and the roller 3. By adjusting the extension length of the adjusting pull rod on the fixing plate 10 of the side plate 1, the tension spring 13 on the two side plates 1 has a suitable pre-tightening force. Thus, the shaking force of the workover steel wire rope caused by the high-speed rotation of the drum will be absorbed by the buffering action of the tension spring 13 on the two side plates 1, and the roller 3 will rotate at high speed on the roller shaft 2 and move left and right along the axial direction of the roller shaft 2 according to the winding position of the workover steel wire rope. Therefore, the problem of sudden jumping of the drilling and workover steel wire rope is avoided, and the problem of disordered arrangement of the steel wire rope caused by the severe shaking of the steel wire rope between the drum and the crown block under the condition of light load and high speed of the drum is also avoided. As a result, the drilling and workover steel wire rope is wound neatly under the high-speed rotation of the drum, the service life of the steel wire rope is prolonged, the safety hazard is eliminated, the cost is saved, and the work efficiency is improved. After the operation of the well is completed, the tension spring 13 on the side plate 1 is removed, and the roller shaft 2 assembly can be quickly removed from the open slide groove 4 of the side plate 1 and placed on the derrick for quick conversion of the well site.
[0037] Therefore, the device has a simple and practical structure, is convenient to install and disassemble, avoids the problem of sudden jumping of the drilling and workover steel wire rope, and thus makes the drilling and workover steel wire rope wound neatly under the high-speed rotation of the drum, prolongs the service life of the steel wire rope, eliminates the safety hazard, and improves the work efficiency.
[0038] The above description is only preferred embodiments of the present application and is not used to limit the present application. Various modifications and changes can be made by those skilled in the art based on the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A self-backing derrick well servicing rig dedicated rope stabilizer, characterized in that, It includes two side plates, roller shafts, rollers and two groups of reset adjusting components; two side plates are respectively and spacedly installed on the drum winch; the roller shafts are arranged above the drum of the drum winch and are respectively and rollably connected to one end of the two side plates; the rollers are linearly and reciprocally installed on the roller shafts and are used for supporting the steel wire rope wound on the drum; the steel wire rope is movably clamped on the wheel groove of the roller and is used for driving the roller to rotate and linearly move on the roller shaft; one end of each group of reset adjusting components is telescopically and drivingly connected to one end of the roller shaft and the other end is connected to the other end of the corresponding side plate.
2. The self-backing-framed workover rig dedicated rope stabilizer of claim 1, wherein, One end of each side plate is provided with an L-shaped open chute; one end of the roller shaft is rollably arranged on the open chute.
3. The self-backing-framed workover rig dedicated rope stabilizer of claim 2, wherein, The open chute includes a horizontal channel and a vertical channel which are sequentially and communicated in L shape; the horizontal channel extends along the length direction of the side plate and penetrates through the opposite sides of the side plate; the vertical channel extends along the height direction of the side plate and penetrates through the opposite sides and the top of the side plate.
4. The self-backing-framed workover rig dedicated rope stabilizer of claim 2, wherein, One end of the roller shaft is sequentially sleeved with an inner baffle and a rolling bearing and is connected with a fixed bolt arranged coaxially at the end; the fixed bolt is sequentially sleeved with an outer baffle and a nut; the outer baffle and the inner baffle are respectively arranged at the opposite outer sides of the open chute; the rolling bearing is rollably arranged on the open chute and is between the outer baffle and the inner baffle.
5. The self-backing-framed workover rig dedicated rope stabilizer of claim 4, wherein, The diameter of the rolling bearing is smaller than the diameter of the inner baffle and the diameter of the outer baffle.
6. The self-backing rig stabilizer of claim 4, wherein, The inner baffle and the outer baffle are both circular plates.
7. The self-backing-framed workover rig dedicated rope stabilizer of claim 4, wherein, The other end of the side plate is provided with a fixed plate on the side wall; the reset adjusting component includes an adjusting pull rod, a tension spring and a pull tab; one end of the adjusting pull rod extends through the fixed plate in adjustable length; one end of the tension spring is connected to one end of the adjusting pull rod and the other end is connected to one end of the pull tab; the other end of the pull tab is sleeved on the fixed bolt and is between the nut and the end of the fixed bolt.
8. The self-backing-frame workover rig dedicated rope stabilizer of claim 7, wherein, The adjusting pull rod includes an adjusting screw and a nut; the adjusting screw is connected to the fixed plate through the nut.
9. The self-backing-frame workover rig dedicated rope stabler of claim 7, wherein, The diameter of the pull tab gradually increases from the direction close to the tension spring to the direction close to the fixed bolt.