An anti-corrosion anchor cable with both measurement and anchoring functions

Abstract

The present invention provides an anti-corrosion anchor cable with both measurement and anchoring functions, including an anchor head, a plurality of connecting cables connected to the anchor head at one end and to an anchor seat at the other end, and a plurality of expansion rings arranged at intervals on the plurality of connecting cables for fixing the plurality of connecting cables. The invention is characterized in that a cable core is arranged in the middle of the plurality of connecting cables and the plurality of expansion rings, a plurality of ball joints are arranged at intervals on the cable core, an isolation tube is arranged on the cable core between two adjacent ball joints, a cable core sleeve is wrapped with a cable core sleeve on the outside of the ball joint and the isolation tube, one end of the cable core is connected to the anchor head, and the other end passes through the anchor seat and is connected to an observer. The displacement can be obtained intuitively and accurately, and the anchoring performance between the anchor cable and the surrounding rock can be improved through the ball joint, and the cable core can be guaranteed not to fail. The use of the isolation tube solves the problem of the lock core being corroded by water, and the anti-rust layer provided on the lock core sleeve greatly prolongs the service life of the anchor cable.

Description

Technical Field

[0001] The invention relates to an anchor cable, in particular to an anti-corrosion anchor cable with both measurement and anchoring functions, belonging to the technical field of hydropower engineering. Background Art

[0002] Anchor cable support is one of the important support forms in the field of hydropower engineering. Anchor cables that can still work stably for a long time in a seepage and rust environment are the key to the safe operation of underground projects. As major power stations enter the operation period one after another, real-time monitoring of whether the surrounding rock of the anchor cable anchoring section of the underground powerhouse is deformed is an important link to ensure the safe operation of hydropower projects. The actual monitoring results show that in the initial operation period, within about ten years, the deformation of the surrounding rock of the anchor cable anchoring section is almost zero, but after the operation period exceeds ten years, the deformation of the surrounding rock of the anchoring section will surge. After a long period of use, the existing anchor cables will rust due to material problems, and then the support failure problem will occur. In addition, since the existing anchor cables do not have a measurement function, the surrounding rock of the anchoring section can only be measured regularly by surveying and mapping personnel. It can neither intuitively reflect whether the surrounding rock of the anchoring section is deformed, nor has it the problem of low measurement accuracy, low work efficiency, large workload, and long time. Therefore, it is necessary to improve the existing technology. Summary of the invention

[0003] In order to solve the problems that existing cable anchors are prone to support failure due to rust, and have no measurement function, which can neither intuitively reflect whether the surrounding rock of the anchoring section is deformed, nor have the problems of low measurement accuracy, low work efficiency, large workload, and long time, the present invention provides an anti-corrosion anchor cable with both measurement and anchoring functions.

[0004] The present invention is completed by the following technical scheme: an anti-corrosion anchor cable with both measurement and anchoring functions, including an anchor head, multiple connecting cables connected to the anchor head at one end and to the anchor seat at the other end, multiple expansion rings arranged at intervals on the multiple connecting cables for fixing the multiple connecting cables, characterized in that a cable core is arranged in the middle of the multiple connecting cables and the multiple expansion rings, multiple ball joints are sleeved at intervals on the cable core, an isolation tube is sleeved on the cable core between two adjacent ball joints, a cable core sleeve is wrapped outside the ball joint and the isolation tube, one end of the cable core is connected to the anchor head, and the other end passes through the anchor seat and is connected to the observer, so as to obtain the movement of the surrounding rock of the anchoring section through the observer.

[0005] The observer comprises a cylindrical shell with a cavity therein, an observation window opened on the side wall of the cylindrical shell and connected to the cavity, a scale arranged along the axial direction of the cylindrical shell is arranged at the edge of the observation window, a movable disk matched with the scale is arranged radially in the cavity, a rack perpendicular to the disk surface is arranged on the movable disk, the rack is meshed with a gear, the gear is fixed on the wheel shaft, one end of the wheel shaft is fixed to the shell through a first seat bearing, and the other end is sleeved with a first bevel gear, the first bevel gear is meshed with a second bevel gear, the second bevel gear is fixed to one end of the rotating shaft, the other end of the rotating shaft is fixed to the shell through a second seat bearing, and the rotating shaft is provided with a first bevel gear at intervals. One and the second are two coaxial pulleys, a first pulley adjacent to the second bevel gear is positively wound with a first pull rope, a movable end of the first pull rope is connected to an end of a cable core that passes through an end plate of a cylindrical shell and is located in a cavity, and a second pull rope is reversely wound with a second pulley, a movable end of the second pull rope is connected to a reset spring arranged on an inner wall of the cavity of the cylindrical shell; when the cable core is displaced, the end pull rope pulls the first pulley to rotate, thereby driving the first and second bevel gears to rotate, the second bevel gear drives the gear to rotate, and the rack meshing with the gear pulls the movable disk to move, so that the movement value can be read on the scale, and then the movement amount of the surrounding rock of the anchoring section is obtained.

[0006] The connecting cables are arranged in a plurality and are distributed around the outer edge of the expansion ring at intervals.

[0007] The ball joint is an elliptical convex ball with a cable core hole inside. The ball joint is sleeved on the cable core through the cable core hole and is located in the lock core sleeve. The lock core sleeve is provided with a convex joint adapted to it at the ball joint, so as to improve the anchoring performance between the anchor cable and the surrounding rock through a plurality of protrusions.

[0008] The isolation tube sleeve is arranged on the cable core between two adjacent ball joints so as to prevent the lock core from being damp and rusted through the isolation sleeve.

[0009] The expansion ring is set in a disc shape, and a plurality of fixing grooves matching the connecting cables are arranged at intervals on its edge. Openings are arranged outside the fixing grooves to facilitate the connecting cables to be inserted into the corresponding fixing grooves, thereby playing a role in expansion and stabilization.

[0010] The lock core sleeve is provided with an anti-rust layer.

[0011] The present invention has the following advantages and effects: by adopting the above scheme, it is convenient to judge whether the surrounding rock of the anchoring section moves through the observer, and the displacement is obtained intuitively and accurately, which is fast and convenient, and does not require manual operation. The ball joint greatly improves the anchoring performance between the anchor cable and the surrounding rock, and ensures that the cable core will not fail. At the same time, the use of the isolation tube solves the problem of the cable core being corroded by water, and the outermost lock core sleeve has an anti-rust effect, which greatly extends the service life of the anchor cable. The present invention has a simple structure, is easy to use, and has obvious effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the overall structural diagram of the present invention;

[0013] Figure 2 for Figure 1 The cable core structure diagram;

[0014] Figure 3 for Figure 1 The structure diagram of the observer. DETAILED DESCRIPTION

[0015] The present invention will be further described below in conjunction with the accompanying drawings.

[0016] The present invention provides an anti-corrosion anchor cable with both measurement and anchoring functions, comprising an anchor head 1, a plurality of connecting cables 4 connected to the anchor head 1 at one end and to an anchor seat 5 at the other end, a plurality of expansion rings 2 arranged at intervals on the plurality of connecting cables 4 for fixing the plurality of connecting cables 4, a cable core 3 is arranged in the middle of the plurality of connecting cables 4 and the plurality of expansion rings 2, a plurality of ball joints 8 are sleeved on the cable core 3 at intervals, an isolation tube 9 is sleeved on the cable core 3 between two adjacent ball joints 8, a cable core sleeve 7 is wrapped around the ball joint 8 and the isolation tube 9, one end of the cable core 3 is connected to the anchor head 1, and the other end passes through the anchor seat 5 and is connected to the observer 6;

[0017] The observer 6 comprises a cylindrical shell 10 with a cavity therein, an observation window 13 provided on the side wall of the cylindrical shell 10 and communicating with the cavity, a scale 12 provided along the axial direction of the cylindrical shell 10 is provided at the edge of the observation window 13, a movable disk 11 matched with the scale 12 is provided radially in the cavity, a rack 15 perpendicular to the disk surface is provided on the movable disk 11, the rack 15 is meshed with a gear 17, the gear 17 is fixed on the axle 18, one end of the axle 18 is fixed to the shell 10 through a first seat bearing 26, and the other end is sleeved with a first bevel gear 16, the first bevel gear 16 is meshed with a second bevel gear 17, and the first bevel gear 16 is meshed with a second bevel gear 17. The bevel gears 14 are meshed with each other, the second bevel gear 14 is fixed to one end of the rotating shaft 19, the other end of the rotating shaft 19 is fixed to the housing 10 through the second seat bearing 23, the first pulley 25 and the second pulley 24 are arranged on the rotating shaft 19 at intervals, the first pulley 25 adjacent to the second bevel gear 14 is positively wound with a first pull rope 22, the movable end of the first pull rope 22 is connected to the end of the cable core 3 passing through the end plate of the cylindrical housing 10 and located in the cavity, the second pulley 24 is reversely wound with a second pull rope 21, the movable end of the second pull rope 21 is connected to the return spring 20 arranged on the inner wall of the cavity of the cylindrical housing 10;

[0018] The connecting cables 4 are provided in four numbers and are distributed around the outer edge of the expansion ring 2 at intervals.

[0019] The ball joint 8 is an elliptical convex ball with a cable core hole therein, the ball joint 8 is sleeved on the cable core 3 through the cable core hole and is located in the lock core sleeve 7, the lock core sleeve 7 is provided with a convex joint adapted thereto at the ball joint 8, and the isolation tube 9 is sleeved on the cable core 3 between two ball joints 8;

[0020] The expansion ring 2 is set in a disc shape, and a plurality of fixing grooves matching the connecting cable 4 are arranged at intervals on its edge. An opening is arranged outside the fixing groove to facilitate the connecting cable 4 to be inserted into the fixing groove. The lock core sleeve 7 is provided with an anti-rust layer.

[0021] During operation: when the anchor cable anchored in the surrounding rock is deformed due to the surrounding rock, causing the cable core 3 to be displaced, the first pull rope 22 will be pulled to rotate the first pulley 25, and then the second pulley 24, the rotating shaft 19, the second bevel gear 14, and the first bevel gear 16 will be driven to rotate. The first bevel gear 16 will drive the gear 17 and the wheel axle 18 to rotate, so that the rack 15 pulls the movable plate 11 to move, and the movement value of the movable plate 11 can be intuitively read on the scale 12, and then the movement amount of the surrounding rock of the anchoring section can be obtained.

Claims

1. An anti-corrosion anchor cable with both measurement and anchoring functions, comprising an anchor head, a plurality of connecting cables connected to the anchor head at one end and to an anchor seat at the other end, and a plurality of expansion rings arranged at intervals on the plurality of connecting cables for fixing the plurality of connecting cables, characterized in that A cable core is provided in the middle of multiple connecting cables and multiple expansion rings, multiple ball joints are provided on the cable core at intervals, an isolation tube is provided on the cable core between two adjacent ball joints, and a cable core sleeve is wrapped outside the ball joint and the isolation tube. One end of the cable core is connected to the anchor head, and the other end passes through the anchor seat and is connected to the observer; The observer comprises a cylindrical shell with a cavity therein, an observation window opened on the side wall of the cylindrical shell and connected to the cavity, a scale arranged along the axial direction of the cylindrical shell is provided on the edge of the observation window, a movable disk matched with the scale is provided radially in the cavity, a rack perpendicular to the disk surface is provided on the movable disk, the rack is meshed with the gear, the gear is fixed on the wheel shaft, one end of the wheel shaft is fixed to the shell through a first belt seat bearing, and a first bevel gear is sleeved on the other end, the first bevel gear is meshed with the second bevel gear, the second bevel gear is fixed to one end of the rotating shaft, and the other end of the rotating shaft is fixed to the shell through a second belt seat bearing, a first pulley and a second pulley are arranged on the rotating shaft at intervals, a first pulley adjacent to the second bevel gear is positively wound with a first pull rope, a movable end of the first pull rope is connected to an end of a cable core passing through an end plate of the cylindrical shell and located in the cavity, a second pulley is reversely wound with a second pull rope, and the movable end of the second pull rope is connected to a reset spring arranged on the inner wall of the cavity of the cylindrical shell; The expansion ring is set in a disc shape, and a plurality of fixing grooves matched with the connection cables are arranged at intervals on its edge, and openings are arranged outside the fixing grooves.

2. The anti-corrosion anchor cable with both measurement and anchoring functions according to claim 1 is characterized in that The ball joint is a round or elliptical convex ball with a cable core hole. The ball joint is sleeved on the cable core through the cable core hole and is located in the lock core sleeve. The lock core sleeve is provided with a convex joint adapted thereto at the ball joint.

3. The anti-corrosion anchor cable with both measurement and anchoring functions according to claim 1 is characterized in that The isolation tube is sleeved on the cable core between two adjacent ball joints.

4. The anti-corrosion anchor cable with both measurement and anchoring functions according to claim 1 is characterized in that The connecting cables are arranged in a plurality and are distributed around the outer edge of the expansion ring at intervals.

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