A cable saddle device for balancing and adjusting the load-bearing rope of a cable crane

Abstract

The present invention belongs to the technical field of cable hoisting and lifting, and specifically relates to a cable hoist load-bearing cable force balancing and adjusting saddle device, comprising a saddle fixedly mounted on the top of a tower and a plurality of load-bearing cables arranged on the saddle, the saddle comprising a support frame fixed to the surface of the tower, and a first pulley block, a second pulley block and a third pulley block installed on the surface of the support frame and sequentially arranged along the length direction of the load-bearing cables, the second pulley block being fixedly mounted on the surface of the support frame, the center of the second pulley block and the center of the tower being both on the same vertical line, the first pulley block and the third pulley block being both slidably arranged on the surface of the support frame along the length direction of the load-bearing cables, and the first pulley block and the third pulley block being both connected to a first driving member that drives them to move, the first driving member being fixed on the surface of the support frame, and the technical solution of the present invention can effectively improve the problem that the cable tower frame has a poor anti-overturning ability after being subjected to the combined force applied by the load-bearing cables, the sports car and the hoisting components.

Description

Technical Field

[0001] The invention belongs to the technical field of cable hoisting and lifting construction, and in particular relates to a cable hoist load-bearing cable force balancing and adjusting saddle device. Background Art

[0002] Cable hoisting systems are often used in the construction of large-span bridges. Prefabricated components are hoisted into place through cable systems. They are mainly used to cross canyons, rivers or river sections with deep and fast currents. Cable hoisting systems can be divided into five basic components according to their working nature: load-bearing cables (main cables), lifting cables, traction cables, towers and anchoring devices. Its working principle is to use the load-bearing cables to bear the load and serve as the running track of the sports car. The lifting device and traction device on the main cable sports car will lift, lift, transport and install the components. When the cable hoisting system is working, one end of the lifting cable, traction cable and load-bearing cable passes through the saddle set on the top of the cable tower and is erected above the ground. The weight of multiple cables is transferred to the tower through the saddle, and the tower bears the gravity of the cables. However, in the actual construction process, the load-bearing cables need to bear the weight of the sports car and the lifting cables when hoisting components at the same time, which will cause the angles between the load-bearing cables and the two sides of the saddle to be different. In other words, the load-bearing cables will exert a horizontal component of force on the saddle, resulting in uneven force on the tower and affecting its stability.

[0003] In order to solve the above technical problems, for example, a Chinese patent discloses an adaptive adjustment system for the saddle of a cable crane (patent announcement number: CN113772559A). By movably setting the saddle at the top of the main tower of the cable crane, it can slide under the action of asymmetric horizontal force, thereby reducing the asymmetric horizontal force, thereby reducing the deviation of the main tower structure of the cable crane, and further improving the safety of the main tower of the cable crane during construction operations; although this technical solution can improve the force on the main tower, the saddle will move close to the edge of the top of the main tower after being forced, and the direction of the vertical resultant force it is subjected to will also deviate from the vertical center line of the main tower. When the movement distance of the saddle is greater, the resultant force on the main tower will also affect its stability. For another example, a Chinese patent discloses a self-balancing system for a cable crane tower and an installation method thereof (patent announcement number: CN107673239A). By arranging a first pulley, a second pulley, a third pulley and an adjustment cable on one side of the cable crane tower to balance the horizontal force on the other side, the horizontal resultant force of the cable crane tower along the bridge direction is small, the balancing performance is good, and the anti-overturning ability is strong; although this technical solution balances the forces on both sides of the tower by actively adjusting the forces on both sides, it does not change the force angles on both sides of the main cable when passing through the saddle. The saddle will also be affected by the horizontal force component brought by the main cable and equipment such as the sports car, and the anti-overturning ability needs to be strengthened.

[0004] In summary, the current cable tower truss cannot well balance the horizontal force it is subjected to after being subjected to the combined force exerted by the load-bearing cables, the sports car and the hoisting components, resulting in poor anti-overturning ability of the cable tower truss. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a cable crane load-bearing cable force balancing and adjusting saddle device, which can effectively improve the problem that the cable tower tower is currently subjected to the combined force applied by the load-bearing cable, the sports car and the lifting components, resulting in poor anti-overturning ability of the cable tower tower.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] The yoke is a device for balancing and adjusting the force of a cable hoist load-bearing cable, comprising a saddle fixedly mounted on a top of a tower and a plurality of load-bearing cables arranged on the saddle. One end of each of the load-bearing cables is connected to a winding roller fixedly mounted on the ground, and the other end passes around the saddle and is connected to the top of an adjacent tower. The saddle comprises a support frame fixed to a surface of the tower, and a first pulley block, a second pulley block and a third pulley block installed on the surface of the support frame and sequentially arranged along the length direction of the load-bearing cable, wherein the first pulley block is close to a side of the winding roller, the horizontal height of the second pulley block is higher than that of the first pulley block and the third pulley block, the second pulley block is fixedly mounted on the surface of the support frame, and the center of the second pulley block and the center of the tower are both on the same vertical line, the first pulley block and the third pulley block are both slidably arranged on the surface of the support frame along the length direction of the load-bearing cable, and the first pulley block and the third pulley block are both connected to a first driving member that drives them to move, and the first driving member is fixed to the surface of the support frame.

[0008] Furthermore, the first pulley block is fixedly connected to a first movable shell for supporting its weight, the bottom of the first movable shell is connected to a second movable shell slidably arranged on the surface of the support frame, the second movable shell moves along the length direction of the load-bearing cable and is dynamically connected to the first driving member, the first movable shell is slidably arranged on the upper surface of the second movable shell in the vertical direction, and the surface of the second movable shell is provided with a second driving member for driving the first movable shell to move vertically; the third pulley assembly is mirror-imaged with respect to the second pulley assembly, and the third pulley assembly is also connected to the first movable shell, the second movable shell and the second driving member, wherein the maximum horizontal heights of the first pulley block and the third pulley block after movement are less than the horizontal height of the second pulley block.

[0009] Furthermore, the support frame is provided with two parts and is symmetrically arranged about the vertical axis of the saddle, the vertical cross-sections of the two support frames along the length direction of the load-bearing cable are both isosceles trapezoidal, the second pulley group is fixedly arranged above the horizontal plane of the upper surface of the support frame, and the first pulley group and the third pulley group are respectively movably arranged above the inclined surface of the upper surface of the support frame.

[0010] Furthermore, the surface of the support frame is provided with two first ranging sensors for measuring the horizontal displacement of the first pulley group and the third pulley group respectively, the surface of each of the second movable shells is provided with a second ranging sensor for measuring the vertical displacement of the corresponding first movable shell, and the surface of each of the first movable shells is provided with a pressure sensor for measuring the stress conditions of the first pulley group and the second pulley group, and the first ranging sensor, the second ranging sensor and the pressure sensor are electrically connected to a main controller located on the ground.

[0011] Furthermore, an angle sensor is provided on the surface of each of the first movable shells, and the measuring end of each of the angle sensors is directed toward the corresponding load-bearing cable, and measures the angle between the load-bearing cable and the vertical line after it passes around the first pulley group and the third pulley group, and each of the angle sensors is electrically connected to the main controller.

[0012] Furthermore, each of the second movable shells is provided with limit blocks at both ends along the extension and retraction direction of the first driving member, each of the limit blocks is fixedly arranged on the surface of the support frame, and two adjacent limit blocks cooperate with each other and limit the movement distance of the corresponding second movable shell.

[0013] Furthermore, a verticality monitoring device is provided on the ground, the working end of the verticality monitoring device faces the tower and monitors its verticality in real time, and the verticality monitoring device is electrically connected to the main controller.

[0014] The beneficial effects of the present invention are:

[0015] 1. The present invention adjusts the positions of the corresponding first pulley block and the third pulley block by arranging the first driving member and the second driving member on the cable saddle, thereby adjusting the force direction of the tangential force applied by the load-bearing cable on the first pulley block and the third pulley block, which can offset the two opposite horizontal force components on the first pulley block and the third pulley block to the greatest extent, so that the horizontal force component finally transmitted to the tower is within its tolerance range, thereby reducing the overturning probability of the tower and ensuring the supporting capacity and stability of the tower;

[0016] 2. The present invention can effectively monitor and adjust in real time the force relationship between the first pulley assembly, the third pulley assembly and the load-bearing cable by arranging angle sensors, a first distance measuring sensor, a second distance measuring sensor and a pressure sensor on the saddle, so that the force condition of the tower can be understood more intuitively and effectively, and various parameters can be adjusted through the main controller so that the tower is always kept in the optimal force range, thereby improving the intelligence of the device and effectively improving the force balance of the tower crane.

[0017] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art may be taught from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0019] Figure 1 It is a schematic diagram of the structure of the cable hanging device of the present invention;

[0020] Figure 2 This is a schematic diagram of the cable saddle structure of the present invention;

[0021] Figure 3 A schematic diagram of the connection between the load-bearing cable and the winding roller of the present invention;

[0022] Figure 4 A top view of the saddle of the present invention;

[0023] Figure 5 A side view of the saddle of the present invention;

[0024] Figure 6 This is a schematic diagram of the connection between the cable saddle and the load-bearing cable of the present invention;

[0025] Figure 7 It is a schematic diagram of the structure of the first movable shell after vertical movement of the present invention.

[0026] The following are marked in the accompanying drawings:

[0027] 1 tower, 2 cable saddle, 3 load-bearing cable, 4 winding roller, 5 guide wheel, 6 first pulley block, 7 second pulley block, 8 third pulley block, 9 support frame, 10 first driving member, 11 first movable shell, 12 second movable shell, 13 second driving member, 14 limit block. DETAILED DESCRIPTION

[0028] like Figure 1 to Figure 7 As shown,

[0029] A cable crane load-bearing cable force balancing and adjusting saddle device comprises a saddle 2 fixedly mounted on the top of a tower 1 and a plurality of load-bearing cables 3 arranged on the saddle 2. As shown in the figure, the plurality of load-bearing cables 3 are arranged in a transverse array along the top of the tower 1. One end of each of the load-bearing cables 3 is connected to a winding roller 4 after passing through a guide wheel 5, and the other end is passed through the saddle 2 and connected to the top of an adjacent tower 1. The guide wheel 5 and the winding roller 4 are both fixedly mounted on the ground. The saddle 2 comprises a support frame 9 fixed to the surface of the tower 1 and a first pulley group 6, a second pulley group 7 and a third pulley group 8 installed on the surface of the support frame 9 and arranged in sequence along the length direction of the load-bearing cable 3. The first pulley group 6, the second pulley group 7 and the third pulley group 8 are all composed of a plurality of guide wheels. The support frame 9 is provided with two pieces, each of which is arranged along the length direction of the load-bearing cable 3, and the two support frames 9 are spaced apart on a horizontal plane. A pulley group matched with a traction cable and a lifting cable is also connected between the two support frames 9 (the specific connection method and related components are The prior art is not described in detail here, wherein the first pulley block 6 is close to the side of the winding roller 4, and a pad is provided at the bottom of the second pulley block 7. The horizontal height of the second pulley block 7 is higher than that of the first pulley block 6 and the second pulley block 7. The second pulley block 7 is fixedly mounted on the surface of the support frame 9 by bolts, and the center of the second pulley block 7 and the center of the tower 1 are both on the same vertical line. The first pulley block 6 and the second pulley block 7 are both slidably arranged on the surface of the support frame 9 along the length direction of the load-bearing cable 3, and the first pulley block 6 and the third pulley block 8 are both connected to a first driving member 10 that drives them to move. In this embodiment, the first driving member 10 adopts a hydraulic telescopic cylinder. The first pulley block 6 is powered and connected to two first driving members 10. The two first driving members 10 are respectively fixedly connected to the corresponding support frame 9 surface by bolts. The output ends of the two first driving members 10 move simultaneously and drive the first pulley block 6 to move along the length direction of the support frame 9; the third pulley block 8 is also connected to two first driving members 10.

[0030] Combination Figure 6 As shown, for the convenience of explanation, after the load-bearing cable 3 passes around the first pulley block 6, the angle between the load-bearing cable 3 and the vertical line is After the load-bearing cable 3 passes around the third pulley block 8, the angle between the load-bearing cable 3 and the vertical line is Under ideal conditions, the second pulley block 7 is disposed between the first pulley block 6 and the third pulley block 8, and = At this time, the horizontal force applied by the load-bearing cable 3 to the first pulley block 6 and the third pulley block 8 is offset, and the second pulley block 7 only bears the vertical gravity of the load-bearing cable 3. The resultant force applied by the load-bearing cable 3 to the tower crane is vertically downward, and the overturning probability of the tower 1 is minimized; of course, in actual situations, after one end of the load-bearing cable 3 is connected to the guide wheel 5 and the winding roller 4 on the ground, The value of is fixed, and because the sports car is lifting cargo of different weights, The value of will change (after the load-bearing cable 3 is debugged and reaches the specified hanging height, The value will only become smaller due to the weight of the cargo). When the value becomes smaller, the tangential force of the load-bearing cable 3 on the third pulley block 8 will be decomposed into horizontal and vertical components, and the force balance relationship applied by the load-bearing cable 3 to the first pulley block 6 and the third pulley block 8 will be destroyed, wherein the horizontal component of the force applied by the load-bearing cable 3 to the third pulley block 8 is greater than the horizontal component of the force applied to the first pulley block 6. Due to the unbalanced force, the possibility of the tower 1 overturning will naturally increase. At this time, by controlling the first driving member 10 corresponding to the first pulley block 6, the first driving member 10 pushes the first pulley block 6 to move a distance away from the second pulley block 7. Since the length of the load-bearing cable 3 segment between the second pulley block 7 and the winding roller 4 remains unchanged, when the first pulley block 6 moves, the tangential force applied by the load-bearing cable 3 to the first pulley block 6 becomes larger. At this time The value of also becomes smaller, and the horizontal component force applied by the load-bearing cable 3 to the first pulley block 6 also increases. When the first pulley block 6 continues to move for a distance driven by the first driving member 10, the horizontal component force applied by the load-bearing cable 3 to the first pulley is close to the horizontal component force applied by the load-bearing cable 3 to the third pulley, and the first driving member 10 stops pushing the first pulley block 6. At this time, since the horizontal components of force on the first pulley block 6 and the third pulley block 8 are opposite, they will cancel each other out. When the value after the horizontal components of the two forces are offset is zero or within the bearing range of the tower 1, the overturning probability of the tower 1 is also within the controllable range, and there is no danger of collapse.

[0031] Of course, the above is only one of the means to adjust the first pulley block 6 and the third pulley block 8 to achieve force balance of the tower frame 1. When the first pulley block 6 moves to the maximum distance away from the second pulley block 7 under the drive of the first driving member 10, the load-bearing cable 3 applies the maximum tangential force to the first pulley block 6. If the horizontal component of this tangential force is still smaller than the horizontal component of the third pulley block 8 (the difference is too large and has exceeded the normal horizontal range), the first driving member 10 corresponding to the third pulley block 8 can be controlled so that the third pulley block 8 is moved to the maximum distance. The three-pulley block 8 moves a certain distance toward the second pulley block 7. At this time, the tangential force of the load-bearing cable 3 on the third pulley block 8 becomes smaller (the reduced part of the gravity is transmitted to the second pulley block 7. The closer the third pulley block 8 is to the second pulley block 7, the smaller the tangential force of the load-bearing cable 3 on the third pulley block 8 will be). Correspondingly, the horizontal component force will also be reduced, so that the horizontal components of force in opposite directions received by the first pulley block 6 and the third pulley block 8 are offset and within the normal horizontal range, so that the horizontal force received by the tower 1 is within the bearing range and there is no possibility of tipping over. Among them, although the center of gravity of the first pulley group 6 and the second pulley group 7 are changed by moving the first drive member 10, the gravity exerted by the load-bearing cable 3 on the second pulley group 7 is much greater than that of the first pulley group 6 and the second pulley group 7. Therefore, the gravity exerted by the saddle 2 on the tower 1 is generally concentrated on the center line of the tower 1 and will not deviate too much, thereby ensuring the stability of the tower 1; and, although the contact position between the third pulley group 8 and the load-bearing cable 3 changes after the third pulley group 8 moves toward the second pulley group 7, thereby reducing the vertical height of the load-bearing cable 3 located between the two towers 1, as long as the reduction range is within a reasonable range, it will not affect the lifting height of the sports car, nor will it affect the working efficiency of the sports car.

[0032] In this embodiment, the first pulley block 6 is fixedly connected to a first movable housing 11 for supporting its weight, the first movable housing 11 is "U"-shaped, the first pulley block 6 is arranged on the inner side of the first movable housing 11, the bottom of the first movable housing 11 is connected to a second movable housing 12 slidably arranged on the surface of the support frame 9, the upper surface of the second movable housing 12 is provided with a groove matching the bottom of the first movable housing 11, the second movable housing 12 moves along the length direction of the load-bearing cable 3 and is connected to the first driving member 10, the first movable housing 11 is slidably arranged on the upper surface of the second movable housing 12 in the vertical direction, and the surface of the second movable housing 12 is provided with a groove for driving A second driving member 13 is provided for driving the first movable housing 11 to move vertically. The second driving member 13 also adopts a hydraulic telescopic cylinder. The second driving member 13 is provided with two pieces and is symmetrically arranged about the vertical axis of the first movable housing 11. The two second driving members 13 are both vertically fixed on the second movable housing 12, and the output end of the second driving member 13 is fixedly connected to the first movable housing 11; the third pulley group 8 is mirror-arranged with respect to the second pulley group 7, and the third pulley group 8 is also connected with the first movable housing 11, the second movable housing 12 and the second driving member 13, wherein the maximum horizontal height of the first pulley group 6 and the third pulley group 8 after moving is less than the horizontal height of the second pulley group 7.

[0033] As shown in the figure, by controlling the corresponding second driving member 13, the horizontal height of the first pulley group 6 or the third pulley group 8 can be adjusted, thereby changing and The value of finally achieves the purpose of adjusting the force relationship between the load-bearing cable 3 and the first pulley block 6 and the second pulley block 7. When the first pulley block 6 moves vertically upward under the drive of the second driving member 13, The value will become smaller, and the tangential force exerted by the load-bearing cable 3 on the first pulley block 6 will become larger. On the contrary, the first pulley block 6 moves vertically downward in the previous state. The value will become larger, and the tangential force applied by the load-bearing cable 3 to the first pulley block 6 will become smaller. Similarly, the change in the tangential force exerted on the third pulley block 8 during vertical movement is also similar to that of the first pulley block 6; therefore, through the mutual cooperation of the first drive member 10 and the second drive member 13, the control range of the tangential force exerted on the first pulley block 6 and the third pulley block 8 can be further improved, and the horizontal component of the first pulley block 6 and the third pulley block 8 can be effectively balanced, thereby improving the anti-overturning ability of the tower 1.

[0034] In this embodiment, the support frame 9 is provided with two pieces and is symmetrically arranged about the vertical axis of the saddle 2. The vertical cross-sections of the two support frames 9 along the length direction of the load-bearing cable 3 are both isosceles trapezoidal. As shown in the figure, there is an angle θ° between the inclined surfaces on both sides of the upper surface of the support frame 9 and the horizontal plane. The second pulley group 7 is fixedly arranged above the horizontal plane of the upper surface of the support frame 9, and the first pulley group 6 and the third pulley group 8 are respectively movably arranged above the inclined surface of the upper surface of the support frame 9, and slide along the inclined surface of the support frame 9 driven by the first driving member 10.

[0035] By setting part of the upper surface of the support frame 9 as an inclined surface, the first pulley group 6 and the third pulley group 8 can apply a horizontal component of force to the support frame 9. The purpose is to decompose the gravity exerted on the first pulley group 6 and the third pulley group 8 to prevent the phenomenon that when the first pulley group 6 and the third pulley group 8 move to the edge of the saddle 2, the gravity exerted by one side of the saddle 2 on the edge of the tower crane is concentrated. Although the imbalance of the combined force exerted on the first pulley group 6 and the third pulley group 8 can be adjusted and improved by the first drive member 10 and the second drive member 13, the unbalanced force exerted by the first pulley group 6 and the third pulley group 8 on the edge of the tower 1 can be reduced by changing the shape of the support frame 9, and the effect is more significant and direct.

[0036] In this embodiment, the surface of the support frame 9 is provided with two first distance measuring sensors (the distance measuring sensors can be existing devices such as infrared sensors and laser sensors) for measuring the horizontal displacement of the first pulley group 6 and the third pulley group 8 respectively, and the surface of each second movable housing 12 is provided with a second distance measuring sensor for measuring the vertical displacement of the corresponding first movable housing 11, wherein the displacement of the first pulley group 6 in the horizontal direction detected is set to , the displacement of the third pulley group 8 in the horizontal direction is detected and set to (The angle of the inclined surface of the support frame 9 is fixed, and the displacement of each second movable frame on the inclined surface can be calculated by simple trigonometric conversion), and the vertical displacement of the first pulley group 6 is set to , the vertical displacement of the third pulley block 8 is set to The surface of each of the first movable shells 11 is provided with a pressure sensor for measuring the stress of the first pulley block 6 and the second pulley block 7, wherein the pressure sensor provided here can be provided with multiple pieces or adopt existing equipment such as multi-axis pressure sensors (the specific arrangement and the use principle are all existing technologies, but no further elaboration is required), which can simultaneously measure the stress relationship of the first pulley block 6 and the second pulley block 7 in multiple directions, wherein the most important thing is to detect the vertical gravity and the horizontal force component received by them, wherein the horizontal force received by the first pulley block 6 is set to , the vertical gravity is set to Similarly, the horizontal force on the third pulley block 8 is set to , the vertical gravity is set to The first distance measuring sensor, the second distance measuring sensor and the pressure sensor are electrically connected to a main controller disposed on the ground. The main controller can be a computer intelligent device, and the main controller includes a display;

[0037] Each of the first movable housings 11 is provided with an angle sensor on its surface. The measuring end of each of the angle sensors is directed toward the corresponding load-bearing cable 3, and measures the angle between the load-bearing cable 3 and the vertical line after it passes around the first pulley block 6 and the third pulley block 8, that is, respectively detects the angle between the load-bearing cable 3 and the vertical line. and Each of the angle sensors is electrically connected to the main controller;

[0038] The above-listed parameters can be observed by the operator through the display, and after reasonable reasoning and mathematical calculation by technicians in the field of technology, we can obtain a stability coefficient i related to the stability of the tower 1 (the calculation process can be obtained through logical reasoning and will not be further expanded here), and stipulate that M N, where M is the minimum coefficient when the tower 1 can continue to maintain the best stable state when it is subjected to the combined force of the load-bearing cable 3 and the saddle 2. On the contrary, N is the maximum coefficient when the tower 1 can continue to maintain the best stable state when it is subjected to the combined force of the load-bearing cable 3 and the saddle 2. Ideally, the coefficient i finally calculated should meet the above inequality. If the coefficient If the value of is not within the range of the above inequality, then the main controller issues instructions in time to control the extension and contraction of the first drive member 10 and the second drive member 13, and timely adjusts the angle and force relationship between the first pulley group 6, the third pulley group 8 and the load-bearing cable 3, and correspondingly, the coefficient The value of will also change synchronously, as long as the coefficient If the value of meets the above inequality, the main controller will immediately stop sending instructions, and the tower 1 will be in the optimal force range at this time, and the possibility of its overturning is extremely low;

[0039] In summary, by receiving all the above-mentioned parameter information through the main controller and dynamically adjusting the positions of the first pulley group 6 and the third pulley group 8 in real time, the purpose of automatically adjusting the force balance of the tower 1 can be achieved, and the degree of automation is further improved. In addition, monitoring and real-time dynamic adjustment are performed through electronic equipment, which effectively improves the accuracy and speed of adjustment, and greatly improves the efficiency of construction.

[0040] In this embodiment, each of the second movable shells 12 is provided with limit blocks 14 at both ends along the extension and retraction direction of the first driving member 10, and the limit blocks 14 are fixedly connected to the surface of the support frame 9 by bolts, and two adjacent limit blocks 14 cooperate with each other and limit the movement distance of the corresponding second movable shell 12, and each limit block 14 is covered with a buffer rubber pad on one side that contacts the second movable shell 12, which can effectively limit the movement distance of the second movable shell 12 and ensure the stability of the entire system.

[0041] In this embodiment, a verticality monitoring device is provided on the ground, and the working end of the verticality monitoring device faces the tower 1 and monitors its verticality in real time. The verticality monitoring device is electrically connected to the main controller. The verticality monitoring device can adopt existing known devices such as a total station or a theodolite (the verticality monitoring device is not drawn in the figure), which can detect in real time whether the tower 1 is offset after being subjected to force, and send instructions in real time through the main controller to control the first drive member 10 and the second drive member 13 to adjust, so as to maximize the force balance of the tower and reduce the probability of overturning of the tower.

[0042] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A cable crane load-bearing cable force balancing and adjusting saddle device, comprising a saddle (2) fixedly mounted on the top of a tower (1) and a plurality of load-bearing cables (3) arranged on the saddle (2), one end of each of the load-bearing cables (3) being connected to a winding roller (4) fixedly mounted on the ground, and the other end of each of the load-bearing cables (3) passing around the saddle (2) and connected to the top of an adjacent tower (1), characterized in that: The cable saddle (2) comprises a support frame (9) fixed on the surface of the tower (1), and a first pulley group (6), a second pulley group (7) and a third pulley group (8) installed on the surface of the support frame (9) and arranged in sequence along the length direction of the load-bearing cable (3), wherein the first pulley group (6) is close to the side of the winding roller (4), the horizontal height of the second pulley group (7) is higher than the first pulley group (6) and the third pulley group (8), the second pulley group (7) is fixedly installed on the surface of the support frame (9), and the center of the second pulley group (7) and the center of the tower (1) are both on the same vertical line, the first pulley group (6) and the third pulley group (8) are both slidably arranged on the surface of the support frame (9) along the length direction of the load-bearing cable (3), and the first pulley group (6) and the third pulley group (8) are both connected to a first driving member (10) for driving them to move, and the first driving member (10) is fixed on the surface of the support frame (9); The first pulley block (6) is fixedly connected to a first movable housing (11) for supporting its weight, the bottom of the first movable housing (11) is connected to a second movable housing (12) slidably arranged on the surface of the support frame (9), the second movable housing (12) moves along the length direction of the load-bearing cable (3) and is dynamically connected to the first driving member (10), the first movable housing (11) is slidably arranged on the upper surface of the second movable housing (12) in the vertical direction, and the surface of the second movable housing (12) is provided with a second driving member (13) for driving the first movable housing (11) to move vertically; the third pulley block (8) is arranged in a mirror image with respect to the second pulley block (7), and the third pulley block (8) is also connected to the first movable housing (11), the second movable housing (12) and the second driving member (13), wherein the maximum horizontal height of the first pulley block (6) and the third pulley block (8) after moving is less than the horizontal height of the second pulley block (7).

2. A cable crane load-bearing cable force balance adjustment saddle device according to claim 1, characterized in that: The support frame (9) is provided with two parts and is symmetrically arranged about the vertical axis of the saddle (2); the vertical cross-sections of the two support frames (9) along the length direction of the load-bearing cable (3) are both isosceles trapezoidal; the second pulley block (7) is fixedly arranged above the horizontal plane of the upper surface of the support frame (9); the first pulley block (6) and the third pulley block (8) are respectively movably arranged above the inclined plane of the upper surface of the support frame (9).

3. A cable saddle device for balancing and adjusting the load-bearing cable of a cable crane according to claim 2, characterized in that: The surface of the support frame (9) is provided with two first distance measuring sensors for measuring the horizontal displacement of the first pulley group (6) and the third pulley group (8) respectively; the surface of each second movable housing (12) is provided with a second distance measuring sensor for measuring the vertical displacement of the corresponding first movable housing (11); the surface of each first movable housing (11) is provided with a pressure sensor for measuring the stress conditions of the first pulley group (6) and the second pulley group (7); the first distance measuring sensor, the second distance measuring sensor and the pressure sensor are electrically connected to a main controller located on the ground.

4. A cable saddle device for balancing and adjusting the load-bearing cable of a cable crane according to claim 3, characterized in that: An angle sensor is provided on the surface of each of the first movable shells (11), and a measuring end of each of the angle sensors is directed toward the corresponding load-bearing cable (3) and measures the angle between the load-bearing cable (3) and the vertical line after the load-bearing cable (3) passes around the first pulley group (6) and the third pulley group (8), and each of the angle sensors is electrically connected to the main controller.

5. A cable saddle device for balancing and adjusting the load-bearing cable of a cable crane according to claim 4, characterized in that: Each of the second movable shells (12) is provided with limit blocks (14) at both ends along the extension and retraction direction of the first driving member (10), each of the limit blocks (14) is fixedly arranged on the surface of the support frame (9), and two adjacent limit blocks (14) cooperate with each other and limit the movement distance of the corresponding second movable shell (12).

6. A cable saddle device for balancing and adjusting the load-bearing cable of a cable crane according to claim 5, characterized in that: A verticality monitoring device is provided on the ground, the working end of the verticality monitoring device faces the tower (1) and monitors its verticality in real time, and the verticality monitoring device is electrically connected to the main controller.

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