Armored cable torsion releasing device

Abstract

The utility model discloses a torsion release device for an armored cable, which is used for releasing torsion when the armored cable is used for hoisting target equipment, and comprises a torsion release assembly and a connecting assembly which are rotationally connected with each other, and the connecting assembly is connected with the target equipment; the armored cable penetrates through the torsion releasing assembly, an armored layer of the armored cable is fixedly connected with the torsion releasing assembly, an electric transmission layer of the armored cable penetrates through the connecting assembly to be electrically connected with the target equipment, and the part, located in the connecting assembly, of the electric transmission layer is coiled into a spiral structure. According to the utility model, when the armored cable is twisted, the armored layer of the armored cable can drive the torsion releasing assembly to rotate relative to the connecting assembly, and the rotation of target equipment is not caused. According to the design, the torsion generated by the armored cable is ingeniously counteracted through the spiral structure, so that the instant release of the torsion is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of cables, and particularly relates to an armored cable torque release device. Background Art

[0002] In major engineering construction fields such as high-rise buildings, large bridges, and urban rail transit, using a borehole detector to detect the verticality of large-depth holes (wells, grooves) excavated is a key link to ensure construction safety. As the core equipment in this process, the performance and stability of the logging winch directly affect the accuracy of logging data and the operation efficiency. The armored cable, as an important part of the logging winch, not only undertakes multiple tasks such as sensor lowering, power supply, and data transmission, but also needs to have sufficient mechanical strength to cope with the complex downhole environment. However, the unique wire winding structure design of the armored cable, although enhancing its tensile resistance performance, also introduces an unignorable torque problem.

[0003] In the prior art, the logging winch generally adopts the method of coiling the armored cable on the cable drum to store and release the cable. Although a certain degree of torque release treatment is carried out before coiling, due to the influence of various factors such as the cable drum design, winding method, and operation skills, new torque will still inevitably be generated during the winding process of the cable. This torque will gradually accumulate as the cable length increases when the cable is released from the cable drum for logging operations, and cause the cable and the connected sensors to rotate. For logging operations that require high-precision measurement, the attitude instability of the sensors will directly reduce the accuracy of the measurement data, and in severe cases, it may even damage the equipment, causing significant economic losses and safety hazards.

[0004] Traditionally, for the torque problem of similar cables, a common solution is to let the lifted object rotate together with the cable during the lifting process to "consume" or "release" the torque in the cable. However, this method is obviously not applicable in logging operations because logging operations require the sensors to maintain a stable attitude in the horizontal direction to accurately measure various parameters of the wellbore wall. Currently, for the problem of cable torque release of the logging winch, it mainly relies on the torque release tool before coiling for pretreatment. However, this method can only reduce the initial torque to a certain extent and cannot completely eliminate the torque generated during the subsequent coiling process of the cable. Therefore, during the logging process, the rotation problem of the cable still exists and intensifies as the used length of the cable increases. Content of the Utility Model

[0005] To solve the above problems, the purpose of the utility model is to provide an armored cable torque release device, which can release the forces when the cable is subjected to tension and torque through rotation and the spiral structure of the electrical transmission layer, so as to ensure that the sensors will not rotate following the rotation of the cable.

[0006] To achieve the above purpose, the technical solution of the utility model is:

[0007] An armored cable torque release device is used for releasing the torque of the armored cable when hanging a target device, comprising a torque release component and a connecting component that are rotatably connected to each other, and the connecting component is connected to the target device;

[0008] The armored cable is passed through the torque release component and its armor layer is fixedly connected to the torque release component. The electrical transmission layer of the armored cable passes through the connection component and is electrically connected to the target device, and the portion of the electrical transmission layer located in the connection component is coiled into a spiral structure.

[0009] According to one embodiment of the utility model, the torque release assembly includes a main body and a fastener, the main body is provided with a fixing hole, the armored cable is passed through the main body, the armor layer is peeled off and arranged in the fixing hole, and the fastener is fastened in the fixing hole and presses the armor layer to fix it in the fixing hole.

[0010] According to an embodiment of the utility model, the fixing hole is a screw hole, the screw hole is arranged at the bottom end of the main body, the armored cable is passed through the screw hole, and the armor layer is peeled off and arranged in the screw hole, and the electric transmission layer passes through the screw hole;

[0011] The fastener is a plug screw, which is threadedly connected to the screw hole and presses and fixes the armor layer in the screw hole through the thread locking force. A first through hole is provided inside the plug screw, and the electric transmission layer is penetrated through the first through hole.

[0012] According to an embodiment of the present invention, the connection assembly is a housing assembly, and the torque release assembly is disposed inside the housing assembly.

[0013] According to an embodiment of the utility model, the shell assembly is provided with a first opening at the top and a second opening at the bottom, the armored cable enters the shell assembly through the first opening, and the electrical transmission layer passes through the shell assembly through the second opening.

[0014] According to an embodiment of the utility model, the torque release assembly includes a connecting rod, the connecting rod is inserted into the first opening and extends through the first opening to the top of the housing assembly;

[0015] A second through hole is provided in the connecting rod, and the armored cable is passed through the second through hole and is passed through the second through hole to the torque release component.

[0016] According to an embodiment of the present utility model, the torque release assembly includes a flat thrust bearing, the flat thrust bearing is arranged between the torque release assembly and the inner wall of the top of the housing assembly, and the torque release assembly is rotatably connected to the housing assembly through the flat thrust bearing.

[0017] According to an embodiment of the present utility model, the electrical transmission layer is the core wire of the inner layer of the armored cable, and the armored layer is the steel wire wound around the outer layer of the armored cable.

[0018] Due to the adoption of the above technical solutions, the present utility model has the following advantages and positive effects compared with the prior art:

[0019] When the armored cable of the present utility model is twisted, the armored layer of the armored cable can drive the torque release assembly to rotate relative to the connection assembly. During the twisting process, the electrical transmission layer can effectively release the torque by virtue of its unique spiral structure design and will not drive the target device to rotate.

[0020] The present utility model realizes the flexible connection between the armored cable and the target device, which not only avoids the direct transmission of torque to the connected target device, but also significantly reduces the risk of equipment damage caused by torque accumulation, and ensures the long-term stable operation of the target device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The following further details the specific embodiments of the present utility model with reference to the drawings, where:

[0022] Figure 1 is the overall perspective view of the present utility model;

[0023] Figure 2 is the schematic diagram of the torque release assembly of the present utility model;

[0024] Figure 3 is the schematic diagram of the housing assembly of the present utility model.

[0025] DESCRIPTION OF THE REFERENCE NUMERALS:

[0026] 1. Torque release assembly; 2. Second perforation; 3. Connecting rod; 4. Flat thrust bearing; 5. Main body; 6. Plug screw; 7. First perforation; 8. First opening; 9. Second opening; 10. Spiral structure; 11. Housing assembly. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following further details the present utility model with reference to the drawings and specific embodiments. According to the following description, the advantages and features of the present utility model will be clearer. It should be noted that the drawings are all in a very simplified form and use non-precise ratios, only for the purpose of conveniently and clearly assisting in explaining the embodiments of the present utility model.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship, movement conditions, etc. between components in a certain specific posture (as shown in the attached drawings). If this specific posture changes, the directional indications will also change accordingly.

[0029] Referring to Figures 1 to 3 , the core of the present utility model is to provide an armored cable torsion release device, which is used for the torsion release of the armored cable when hoisting the target device. It can be used in a logging winch, and the target device is a logging sensor. Of course, it can also be used in other devices that require armored cable to hoist acoustic, optical, electrical, and magnetic sensors, as well as other devices that need to keep the object hoisted smoothly. Moreover, it is applicable not only to single-layer armored cable but also to double-layer armored cable.

[0030] The armored cable torsion release device includes a torsion release assembly 1 and a connection assembly that are rotatably connected to each other, and the connection assembly is connected to the target device. The armored cable is passed through the torsion release assembly 1, and its armored layer is fixedly connected to the torsion release assembly 1. The armored layer bears the tension. The electrical transmission layer of the armored cable passes through the connection assembly and is electrically connected to the target device, and the part of the electrical transmission layer located inside the connection assembly is coiled into a spiral structure 10. The electrical transmission layer is the core wire inside the armored cable, which is used to transmit signals and electricity. The armored layer is the steel wire wound on the outer layer of the armored cable, which is used for protection and bearing tension.

[0031] When the armored cable of the present utility model is twisted, the armored layer of the armored cable can drive the torsion release assembly 1 to rotate relative to the connection assembly. During the twisting process, the electrical transmission layer effectively releases the torsion by virtue of its unique spiral structure 10 design. The present utility model realizes the flexible connection between the armored cable and the target device, which not only avoids the direct transmission of torsion to the connected target device but also significantly reduces the risk of equipment damage caused by torsion accumulation, ensuring the long-term stable operation of the target device.

[0032] The torsion release assembly 1 includes a main body 5 and a fastener. The main body 5 is provided with a fixing hole. The armored cable is passed through the main body 5. After the armored layer is peeled off, it is arranged in the fixing hole. The fastener is fastened in the fixing hole and presses the armored layer to be fixed in the fixing hole.

[0033] Specifically, the fixing hole is a threaded hole, which is arranged at the bottom end of the main body 5. The armored cable is passed through the threaded hole, and after the armored layer is peeled off, it is arranged in the threaded hole and the electrical transmission layer passes through the threaded hole.

[0034] The fastener is a plug screw 6. The plug screw 6 is threadedly connected to the threaded hole and presses the armored layer to be fixed in the threaded hole through the thread locking force. A first through hole 7 is arranged inside the plug screw 6, and the electrical transmission layer is passed through the first through hole 7.

[0035] The connecting component is the housing component 11. The interior of the housing component 11 is hollow. The torque release component 1 is arranged at the top inside the housing component 11. The target device is connected to the bottom of the housing component 11. The housing component 11 is made of metal, which can fix and protect the torque release component 1. The top of the housing component 11 is provided with a first opening 8, and the bottom is provided with a second opening 9. The armored cable enters the housing component 11 through the first opening 8. The spiral structure 10 of the electrical transmission layer is arranged at the bottom inside the housing component 11. The electrical transmission layer passes through the second opening 9 and exits the housing component 11.

[0036] The torque release component 1 further includes a connecting rod 3. The connecting rod 3 is connected to the main body 5. The connecting rod 3 passes through the first opening 8 and extends above the housing component 11 through the first opening 8. Second through holes 2 are provided both in the connecting rod 3 and the main body 5. The armored cable passes through the second through holes 2 and penetrates into the main body 5 through the second through holes 2. The diameter of the screw hole is larger than that of the second through hole 2 and is communicated with it. The armored cable enters the screw hole through the second through hole 2 in the main body 5.

[0037] The torque release component 1 further includes a flat thrust bearing 4. The flat thrust bearing 4 is sleeved on the connecting rod 3 and is arranged between the main body 5 and the inner wall of the top of the housing component 11. The main body 5 is rotationally connected to the inner wall of the top of the housing component 11 through the flat thrust bearing 4. By using the pulling force of the armored cable on the torque release component 1 and the gravity borne by the housing component 11, the flat thrust bearing 4 is firmly clamped between the torque release component 1 and the housing component 11. When the armored cable rotates, it will drive the torque release component 1 to rotate in the housing component 11. At this time, the flat thrust bearing 4 can play a role in supporting the rotation of the mechanical body, bearing the axial load, and reducing the friction between the two structural parts.

[0038] The installation process of the present utility model will be further described below:

[0039] First, pass the armored cable through the second through holes 2 in the connecting rod 3 and the main body 5 and into the torque release component 1. When the armored cable passes through the screw hole and exits from the screw hole, peel off the armor layer of the armored cable, that is, peel off the outer wound steel wires of the armored cable, and only retain the electrical transmission layer, that is, the inner core wire. The peeled steel wires are scattered in a "petal" shape and placed in the screw hole, and then screw in the plug screw 6 to press and fix it. The core wire passes through the first through hole 7 of the plug screw 6 and exits.

[0040] After the core wire exits the plug screw 6, it is coiled into a spiral structure 10 and placed in the bottom cavity of the housing component 11. Finally, the core wire exits from the second opening 9 at the bottom of the housing component 11 and is electrically connected to the target device for power supply and communication.

[0041] The utility model mainly solves the problem that when an armored cable is hoisted to a large depth for a logging sensor, it is prone to rotate under the action of torsion, resulting in unstable attitude of the logging sensor and further affecting the measurement data. When the armored cable is subjected to tensile force and torsion, the device can release these forces through the flexible rotation of the internal mechanism and by utilizing the spiral structure 10 of the core wire, so as to ensure that the logging sensor does not rotate following the rotation of the armored cable.

[0042] The above has described in detail the embodiments of the utility model in conjunction with the accompanying drawings. However, the utility model is not limited to the above embodiments. Even if various changes are made to the utility model, provided that these changes fall within the scope of the claims of the utility model and its equivalent technologies, they still fall within the protection scope of the utility model.

Claims

1. An armored cable torque release device for releasing the torque of an armored cable when hoisting a target device. Characterized in that, It includes a torque release component and a connection component that are rotatably connected to each other, and the connection component is connected to the target device; The armored cable passes through the torque release component and its armored layer is fixedly connected to the torque release component. The electrical transmission layer of the armored cable passes through the connection component and is electrically connected to the target device, and the part of the electrical transmission layer located within the connection component is wound into a spiral structure.

2. The armored cable torque release device according to claim 1, Characterized in that, The torque release component includes a main body and a fastener. The main body is provided with a fixing hole. The armored cable passes through the main body. After the armored layer is peeled off, it is arranged in the fixing hole. The fastener is fastened in the fixing hole and presses and fixes the armored layer in the fixing hole.

3. The armored cable torque release device according to claim 2, Characterized in that, The fixing hole is a threaded hole, which is arranged at the bottom end of the main body. The armored cable passes through the threaded hole, and after the armored layer is peeled off, it is arranged in the threaded hole and the electrical transmission layer passes through the threaded hole; The fastener is a plug screw, which is threadedly connected to the threaded hole and presses and fixes the armored layer in the threaded hole through the thread locking force. The plug screw is internally provided with a first through hole, and the electrical transmission layer passes through the first through hole.

4. The armored cable torque release device according to claim 1, Characterized in that, The connection component is a housing component, and the torque release component is arranged inside the housing component.

5. The armored cable torque release device according to claim 4, Characterized in that, The top of the housing component is provided with a first opening, and the bottom is provided with a second opening. The armored cable enters the housing component through the first opening, and the electrical transmission layer passes through the second opening and exits the housing component.

6. The armored cable torque release device according to claim 5, Characterized in that, The torque release component includes a connecting rod, and the connecting rod passes through the first opening and extends above the housing component through the first opening; A second through hole is arranged inside the connecting rod, and the armored cable passes through the second through hole and passes through the second through hole to the torque release component.

7. The armored cable torque release device according to claim 5, Characterized in that, The torque release component includes a flat thrust bearing, and the flat thrust bearing is arranged between the torque release component and the inner wall of the top of the housing component. The torque release component is rotatably connected to the housing component through the flat thrust bearing.

8. The armored cable torque release device according to claim 1, Characterized in that, The electrical transmission layer is the core wire of the inner layer of the armored cable, and the armored layer is the steel wire wound around the outer layer of the armored cable.

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