Traction system for vertical arrangement of deep-drilling optical cable

Abstract

The utility model relates to the technical field of traction equipment, in particular to a traction system for vertically arranging a deep drilling optical cable, which comprises a winch, a traction cable and a damping device, the traction rope is connected with the winch so as to be driven by the winch to retract and release. The damping device comprises a damping mechanism and a damping adjusting mechanism, the damping mechanism is connected with the traction cable and used for absorbing impact force of the traction cable, and the damping adjusting mechanism is connected with the damping mechanism and used for adjusting damping of the damping mechanism. According to the traction system for vertical arrangement of the deep-drilling optical cable provided by the utility model, the damping device is arranged, so that the damping mechanism of the damping device can be used for applying damping to the traction cable, and the situation that the traction cable is broken due to sudden acting force generated when the winch is started and stopped is prevented; traction cable fatigue and optical cable damage caused by uneven stress are effectively relieved, the damping adjusting mechanism can adjust damping of the damping mechanism according to requirements, and the flexibility of the system is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of traction equipment technology, and in particular to a traction system for vertical laying of optical cables in deep boreholes. Background Technology

[0002] In coal mine geological safety monitoring, distributed fiber optic sensing technology, with its advantages of distributed operation, high sensitivity, and long-distance monitoring, is widely used for real-time monitoring of strata deformation and surface subsidence in mining areas, providing crucial data support for mine disaster early warning. The reliability of fiber optic cable deployment directly affects the stability of the monitoring system and the data acquisition effect; therefore, cable protection is paramount during vertical burial. During vertical direct burial of fiber optic cables, due to the significant drilling depth, steel wire ropes are typically used for traction to ensure smooth cable deployment.

[0003] In existing technologies, steel wire ropes are typically directly fixed to a winch to transmit traction force, and the optical cable is then bundled with the wire rope before being smoothly lowered to the predetermined depth. However, during construction, the starting and stopping of the winch generates dynamic impact forces, which can cause the steel wire rope to break. Furthermore, when the steel wire rope is long, uneven distribution of gravity and friction can easily lead to stress imbalance between the steel wire rope and the optical cable, potentially damaging the steel wire rope, the optical cable, and the connected sensors. These problems can lead to failed optical cable installation or equipment damage, directly impacting construction efficiency and project quality. Utility Model Content

[0004] This utility model provides a traction system for vertical laying of optical cables in deep drilling, which solves the problems of wire rope breakage and stress imbalance that easily occur during optical cable laying in the prior art.

[0005] This utility model provides a traction system for vertical laying of optical cables in deep boreholes, including: a winch, a traction cable, and a damping device.

[0006] The traction cable is connected to the winch so that the winch drives the traction cable to be wound up and down; the damping device includes a damping mechanism and a damping adjustment mechanism. The damping mechanism is connected to the traction cable and is used to absorb the impact force of the traction cable. The damping adjustment mechanism is connected to the damping mechanism and is used to adjust the damping of the damping mechanism.

[0007] According to the traction system for vertical deployment of optical cables in deep boreholes provided by this utility model, the damping mechanism includes an elastic element, the elastic element is connected to the damping adjustment mechanism, and the traction cable passes through the elastic element.

[0008] According to the traction system for vertical deployment of optical cables in deep boreholes provided by this utility model, the damping adjustment mechanism includes two damping adjustment groups, which are respectively located on both sides of the elastic element. Each damping adjustment group includes a plurality of damping adjustment units spaced apart along the length of the elastic element.

[0009] The damping adjustment unit includes a cylinder and a piston. One end of the piston slides in conjunction with the cylinder, and the other end of the piston abuts against the elastic element.

[0010] The traction system for vertical deployment of optical cables in deep boreholes provided by this utility model also includes a guiding device, which guides the traction cable so that the traction cable enters the borehole vertically.

[0011] According to the traction system for vertical laying of optical cables in deep boreholes provided by this utility model, the guiding device includes a guide fixing seat, a first fixed pulley and a second fixed pulley. The first fixed pulley and the second fixed pulley are vertically spaced apart on the guide fixing seat. The first fixed pulley is located below the second fixed pulley. The traction cable is sequentially wound around the first fixed pulley and the second fixed pulley.

[0012] According to the traction system for vertical deployment of optical cables in deep drilling provided by this utility model, the guide fixing seat includes a base and a bracket, the bracket is disposed on the base, the first fixed pulley and the second fixed pulley are vertically spaced on the bracket, and the base is provided with a clearance structure for giving way to the traction cable.

[0013] The traction system for vertical deployment of optical cables in deep boreholes provided by this utility model includes multiple damping devices, which are spaced apart, and the traction cable is sequentially connected to the multiple damping devices.

[0014] According to the traction system for vertical laying of optical cables in deep boreholes provided by this utility model, the end of the traction cable is provided with a counterweight guide hammer.

[0015] According to the traction system for vertical laying of optical cables in deep boreholes provided by this utility model, the traction cable is a steel wire rope.

[0016] According to the traction system for vertical laying of optical cables in deep boreholes provided by this utility model, the damping device further includes a base, and the damping mechanism and the damping adjustment mechanism are both located on the base.

[0017] The traction system for vertical laying of optical cables in deep boreholes provided by this utility model can apply damping to the traction cable by setting a damping device, thereby preventing the traction cable from breaking due to sudden force when the winch starts and stops. This effectively alleviates traction cable fatigue and optical cable damage caused by uneven force. The damping adjustment mechanism can also adjust the damping of the damping mechanism according to needs, significantly improving the flexibility of the system.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a traction system for vertical deployment of optical cables in deep boreholes, provided in an embodiment of this utility model.

[0021] Figure 2 This is a schematic diagram of the damping device in the traction system for vertical laying of optical cables in deep boreholes, provided in an embodiment of this utility model.

[0022] Figure label:

[0023] 10. Winch; 20. Traction cable; 30. Damping device; 310. Damping mechanism; 311. Elastic element; 320. Damping adjustment mechanism; 321. Damping adjustment unit; 3211. Cylinder; 3212. Piston; 330. Base; 40. Guide device; 410. Guide fixing seat; 411. Base; 412. Bracket; 420. First fixed pulley; 430. Second fixed pulley; 50. Counterweight guide hammer; 60. Drill hole. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model according to the specific circumstances.

[0027] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0029] The following is combined Figure 1 and Figure 2This invention describes a traction system for vertical deployment of 60mm optical cables in deep boreholes.

[0030] See Figure 1 As shown in the figure, the traction system for vertical laying of optical cables in deep boreholes 60 provided by this utility model embodiment includes: a winch 10, a traction cable 20 and a damping device 30.

[0031] The traction cable 20 is connected to the winch 10 so that the winch 10 can drive the traction cable 20 to be wound up and down; the damping device 30 includes a damping mechanism 310 and a damping adjustment mechanism 320. The damping mechanism 310 is connected to the traction cable 20 and is used to absorb the impact force of the traction cable 20. The damping adjustment mechanism 320 is connected to the damping mechanism 310 and is used to adjust the damping of the damping mechanism 310.

[0032] The traction system for vertical laying of optical cables in deep boreholes provided by this utility model, by setting a damping device 30, can apply damping to the traction cable 20 using the damping mechanism 310 of the damping device 30, to prevent the traction cable 20 from breaking due to sudden force when the winch 10 starts and stops. This effectively alleviates fatigue of the traction cable 20 and damage to the optical cable caused by uneven force. The damping adjustment mechanism 320 can also adjust the damping of the damping mechanism 310 according to the needs, which significantly improves the flexibility of the system.

[0033] Specifically, the traction system includes a winch 10, a traction cable 20, and a damping device 30. The winch 10 provides traction power to the traction cable 20; in use, one end of the traction cable 20 needs to be connected to its output end. The traction cable 20 provides traction and guidance for the optical cable; in use, the optical cable needs to be connected to the free end of the traction cable 20, and the optical cable is lowered into the pre-drilled hole 60 via the traction cable 20. The damping device 30, connected to the traction cable 20, absorbs the impact force of the traction cable 20, reduces the sudden force generated by the start and stop of the winch 10, prevents the traction cable 20 from breaking, and reduces damage to the optical cable caused by uneven stress.

[0034] The damping device 30 includes a damping mechanism 310 and a damping adjustment mechanism 320. The damping mechanism 310 can be a hydraulic damping mechanism 310, a spring damping mechanism 310, or a friction damping mechanism 310, etc. Specifically, the hydraulic damping mechanism 310 provides resistance through the flow of liquid; the liquid flows through a narrow channel under the action of a piston or diaphragm, and the resistance of the liquid flow generates a damping effect. The spring damping mechanism 310 provides resistance through the combined action of the elastic deformation of the spring and the friction or fluid friction of the damping material; when the spring deforms, the elastic force and damping force work together to alleviate the impact and vibration of the traction cable 20. The friction damping mechanism 310 provides damping through the elasticity and internal friction characteristics of the elastic element 311; when the elastic element 311 deforms under force, resistance is generated through the internal friction between molecules and elastic recovery. The damping adjustment mechanism 320 can be hydraulically or mechanically adjusted, etc. Hydraulic adjustment adjusts the damping force by changing the flow characteristics or flow rate of the liquid, which can be achieved using a hydraulic regulating valve; mechanical adjustment adjusts the working parameters of the damping mechanism 310 through a mechanical structure, such as adjusting the compression of the damping mechanism 310.

[0035] See Figure 1 and Figure 2 As shown, according to some preferred embodiments of the present invention, the damping mechanism 310 includes an elastic element 311, which is connected to the damping adjustment mechanism 320, and the traction cable 20 passes through the elastic element 311.

[0036] By setting the damping mechanism 310 in the form of an elastic element 311, frictional damping can be applied to the traction cable 20 using the elastic element 311 to absorb and disperse the dynamic impact force of the traction cable 20, thereby significantly increasing the running smoothness of the traction cable 20.

[0037] Specifically, the elastic element 311 has a through hole along its length, through which the traction cable 20 passes. The diameter of the through hole is slightly smaller than the outer diameter of the traction cable, so that the traction cable 20 is damped by friction between the traction cable 20 and the inner wall of the through hole.

[0038] See Figure 2 As shown, according to some preferred embodiments of the present invention, the damping adjustment mechanism 320 includes two damping adjustment groups, which are respectively disposed on both sides of the elastic element 311. Each damping adjustment group includes a plurality of damping adjustment units 321 spaced apart along the length of the elastic element. Each damping adjustment unit 321 includes a cylinder 3211 and a piston 3212 (connected with a push rod). One end of the piston 3212 is slidably engaged with the cylinder 3211, and the other end (push rod) of the piston 3212 abuts against the elastic element 311.

[0039] By setting the damping adjustment mechanism 320 in the form of two damping adjustment groups, pressure can be applied to the traction cable 20 on the inside using the two damping adjustment groups, thereby increasing or decreasing the frictional damping between the traction cable 20 and the elastic element, and thus achieving damping adjustment.

[0040] Specifically, when the piston 3212 extends outward, its end can increase the pressure applied to the elastic element, thereby increasing the frictional damping between the traction cable 20 and the elastic element 311. Correspondingly, when the piston 3212 retracts inward, its end can decrease the pressure applied to the elastic element 311, thereby reducing the frictional damping between the traction cable 20 and the elastic element 311.

[0041] See Figure 1 As shown, according to some embodiments of the present invention, the traction system for vertically laying optical cables in deep boreholes 60 further includes a guide device 40, which guides the traction cable 20 so that the traction cable 20 enters the borehole 60 vertically.

[0042] By setting the guide device 40, the traction cable 20 can be guided, enabling it to carry the optical cable vertically into the pre-drilled hole 60, reducing deviation and friction during the traction process and improving traction efficiency. In addition, the guide device 40 can also reduce the contact area between the traction cable 20 and the wall of the hole 60 or other components, reducing friction, thereby reducing energy loss and effectively preventing damage to the optical cable during the traction process.

[0043] Specifically, the guiding device 40 can take various forms, such as pulleys or guide wheels, guide tubes, or deflection devices. Pulleys or guide wheels, through multiple devices positioned along the path of the traction cable 20, effectively reduce friction, ensuring smooth operation of the traction cable 20. Guide tubes form a fixed channel around the traction cable 20, reducing friction and ensuring accurate entry of the traction cable 20 into the borehole 60. Deflection devices provide precise guidance by rotating or adjusting the angle of the traction cable 20 to change its path. The aforementioned guiding device 40 effectively controls the movement trajectory of the traction cable 20, reducing friction and resistance, thereby ensuring the accuracy, smoothness, and stability of the optical cable laying process.

[0044] See Figure 1 As shown, according to some preferred embodiments of the present invention, the guiding device 40 includes a guide fixing seat 410, a first fixed pulley 420 and a second fixed pulley 430. The first fixed pulley 420 and the second fixed pulley 430 are vertically spaced apart on the guide fixing seat 410. The first fixed pulley 420 is located below the second fixed pulley 430. The traction cable 20 is sequentially wound around the first fixed pulley 420 and the second fixed pulley 430.

[0045] By configuring the guide device 40 to include a guide fixing seat 410, a first fixed pulley 420 and a second fixed pulley 430, the traction cable 20 can be effectively guided vertically into the preset borehole 60.

[0046] Specifically, the first fixed pulley 420 and the second fixed pulley 430 are arranged vertically at intervals, with the first fixed pulley 420 located below the second fixed pulley 430. The traction cable 20 is sequentially wound around the two fixed pulleys, which ensures that the traction cable 20 maintains a stable direction during the laying process, reduces resistance caused by friction or deviation, and improves laying accuracy and efficiency. At the same time, the interval arrangement of the pulleys can reduce the curvature of the traction cable 20, reduce friction during the traction process, ensure that the optical cable can smoothly enter the borehole 60 along the predetermined path, and reduce the risk of damage to the optical cable.

[0047] It should be noted that the distance between the first fixed pulley 420 and the second fixed pulley 430 can be set according to actual needs, such as the diameter of the traction cable 20, the type of optical cable, the size of the borehole 60, and the mechanical requirements during the traction process. Typically, the distance between the first fixed pulley 420 and the second fixed pulley 430 can be set to be compatible with the diameter of the traction cable 20 to ensure that the traction cable 20 can pass smoothly through the pulleys without being affected by excessive bending or stretching. If the distance is too small, the traction cable 20 may bend excessively, increasing friction; while if the distance is too large, the traction cable 20 may deviate from the predetermined path. Therefore, a reasonable distance setting can ensure the smooth operation of the traction cable 20 while reducing friction and energy loss, ensuring the safe and efficient deployment of the optical cable.

[0048] See Figure 1 As shown, according to some embodiments of the present invention, the guide fixing seat 410 includes a base 411 and a bracket 412. The bracket 412 is disposed on the base 411. The first fixed pulley 420 and the second fixed pulley 430 are vertically spaced on the bracket 412. The base 411 is provided with a clearance structure for making way for the traction cable 20.

[0049] By designing the guide mount 410 to include a base 411 and a bracket 412, a more stable and reliable support structure can be provided.

[0050] Specifically, the bracket 412 is mounted on the base 411, and the first fixed pulley 420 and the second fixed pulley 430 are vertically spaced on the bracket 412 to ensure that the traction cable 20 can pass smoothly along the predetermined trajectory. At the same time, the base 411 is provided with a clearance structure for the traction cable 20, which can provide more flexible space for the traction cable 20 when it passes, avoiding interference between the traction cable 20 and the fixed seat or other components, thus ensuring the smoothness and efficiency of the traction process.

[0051] The clearance structure can be a clearance groove, clearance hole, etc., and its purpose is to provide a convenient passage for the traction cable 20 to reduce friction and resistance that may occur during traction. For example, a clearance groove can be formed by creating a groove along the surface of the base 411, allowing the traction cable 20 to slide smoothly into and run along the groove when passing through, avoiding collisions or interference with other components. A clearance hole can be formed by providing several holes on the base 411, and by guiding the traction cable 20 into the hole, it ensures that the traction cable 20 maintains the correct direction when passing through and reduces unnecessary friction.

[0052] According to some embodiments of the present invention, a traction system for vertically laying optical cables in deep boreholes includes multiple damping devices 30, which are spaced apart, and the traction cable 20 is connected to the multiple damping devices 30 in sequence.

[0053] By setting multiple damping devices 30, the tension changes and vibrations of the traction cable 20 during the deployment process can be further optimized, ensuring a smoother traction process. The multiple damping devices 30 are set at intervals to disperse the external force on the traction cable 20, reduce the excessive force on a single damping device 30, and avoid damage to the optical cable or jamming of the traction cable 20 due to sudden tension fluctuations during the traction process.

[0054] Each damping device 30 plays a role in buffering and shock absorption during traction, reducing the impact caused by changes in traction force or external environmental influences, and reducing friction. The combination of multiple damping devices 30 not only improves the stability of the traction system, but also enhances the safety and efficiency of the laying operation, making it particularly suitable for vertical fiber optic cable laying in complex environments such as deep boreholes 60.

[0055] See Figure 1 As shown, according to some embodiments of the present invention, the end of the traction cable 20 is provided with a counterweight guide hammer 50.

[0056] By setting a counterweight guide hammer 50 at the end of the traction cable 20, the stability and controllability of the traction cable 20 can be effectively increased.

[0057] Specifically, the function of the counterweight guide hammer 50 is to increase the weight at the end of the traction cable 20, so that it can maintain a better sag during the laying process, and avoid swaying or deviation from the predetermined path caused by the traction cable 20 being too slack or affected by external factors such as wind. This ensures that the traction cable 20 is guided more accurately during vertical laying, especially in complex terrain or deep borehole 60 environments. The counterweight guide hammer 50 helps the traction cable 20 pass smoothly and reduces the chance of friction with the borehole wall, thereby improving the efficiency of optical cable laying and avoiding work interruption or optical cable damage caused by the deviation or instability of the traction cable 20.

[0058] According to some preferred embodiments of the present invention, the traction cable 20 is a steel wire rope.

[0059] By using steel wire rope as the traction cable 20, its high strength and wear resistance can be fully utilized to ensure that the traction cable 20 can withstand greater tension without easily breaking or deforming during long-distance and heavy-load optical cable laying.

[0060] Specifically, steel wire ropes have good tensile strength, making them suitable for traction operations of optical cables in complex environments, such as deep boreholes 60 or rugged terrain. At the same time, their durability and wear resistance can effectively reduce the cost of frequent replacement of traction cables 20, improve the efficiency and safety of operations, and reduce the risks caused by cable breakage or failure during optical cable laying.

[0061] See Figure 1 and Figure 2 As shown, according to some embodiments of the present invention, the damping device 30 further includes a base 330, and the damping mechanism 310 and the damping adjustment mechanism 320 are both disposed on the base 330.

[0062] By setting the base 330, a stable support and fixed position can be provided for the damping mechanism 310 and the damping adjustment mechanism 320, ensuring the stability and reliability of the entire damping device 30. As the basic part of the damping device 30, the base 330 can not only effectively bear the force from the damping mechanism 310, but also make the operation of the damping mechanism 310 and the adjustment mechanism more precise and efficient.

[0063] The working principle of the traction system for vertical deployment of 60mm optical cables in deep boreholes provided by this utility model is described below. (See attached text.) Figure 1 and Figure 2 As shown.

[0064] The traction system for vertical laying of optical cables in deep boreholes 60 provided by this utility model mainly achieves smooth and safe laying of the optical cable through the cooperation of a traction cable 20, a damping device 30, and a control mechanism. First, the connecting end of the traction cable 20 (such as a steel wire rope) is connected to the winch 10. The free end of the traction cable 20 is sequentially wound around a first fixed pulley 420 and a second fixed pulley 430, and a counterweight guide hammer 50 is installed at the free end of the traction cable 20. During optical cable laying, the free end of the traction cable 20 is connected to the starting end of the optical cable, and both are slowly lowered into the preset borehole 60. During the lowering process of the traction cable 20 and the optical cable, the damping force provided by the damping device 30 effectively reduces the impact and vibration generated during the pulling process.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A traction system for vertical deployment of optical cables in deep boreholes, characterized in that, include: hoist; A traction cable, which is connected to the winch, so that the winch can drive the traction cable to be wound up and down; A damping device, comprising a damping mechanism and a damping adjustment mechanism, wherein the damping mechanism is connected to the traction cable and is used to absorb the impact force of the traction cable, and the damping adjustment mechanism is connected to the damping mechanism and is used to adjust the damping of the damping mechanism.

2. The traction system for vertical deployment of optical cables in deep boreholes according to claim 1, characterized in that, The damping mechanism includes an elastic element, which is connected to the damping adjustment mechanism, and the traction cable passes through the elastic element.

3. The traction system for vertical deployment of optical cables in deep boreholes according to claim 2, characterized in that, The damping adjustment mechanism includes two damping adjustment groups, which are respectively located on both sides of the elastic element. Each damping adjustment group includes multiple damping adjustment units spaced apart along the length of the elastic element. The damping adjustment unit includes a cylinder and a piston. One end of the piston slides in conjunction with the cylinder, and the other end of the piston abuts against the elastic element.

4. The traction system for vertical deployment of optical cables in deep boreholes according to claim 1, characterized in that, It also includes a guiding device for guiding the traction cable so that the traction cable enters the borehole vertically.

5. The traction system for vertical deployment of optical cables in deep boreholes according to claim 4, characterized in that, The guiding device includes a guide fixing seat, a first fixed pulley and a second fixed pulley. The first fixed pulley and the second fixed pulley are vertically spaced apart on the guide fixing seat. The first fixed pulley is located below the second fixed pulley. The traction cable is sequentially wound around the first fixed pulley and the second fixed pulley.

6. The traction system for vertical deployment of optical cables in deep boreholes according to claim 5, characterized in that, The guide fixing seat includes a base and a bracket. The bracket is disposed on the base. The first fixed pulley and the second fixed pulley are vertically spaced on the bracket. The base is provided with a clearance structure for giving way to the traction cable.

7. The traction system for vertical deployment of optical cables in deep boreholes according to any one of claims 1 to 6, characterized in that, It includes multiple damping devices, which are spaced apart, and the traction cable is connected to the multiple damping devices in sequence.

8. The traction system for vertical deployment of optical cables in deep boreholes according to any one of claims 1 to 6, characterized in that, The end of the traction cable is equipped with a counterweight guide hammer.

9. The traction system for vertical deployment of optical cables in deep boreholes according to any one of claims 1 to 6, characterized in that, The traction cable is a steel wire rope.

10. The traction system for vertical deployment of optical cables in deep boreholes according to any one of claims 1 to 6, characterized in that, The damping device also includes a base, and both the damping mechanism and the damping adjustment mechanism are located on the base.

Images