A super deep well winding lifting angle adaptive sheave system and working method

Abstract

The application discloses a kind of super deep well winding lifting angle self-adapting sheave systems, comprising: sheave, swing platform, constraint platform, rotary mechanism, angle adjusting mechanism, detection feedback and adjusting module;System is erected on well tower platform as a whole;Rotary mechanism center has the hollow for steel wire rope to pass through;Swing platform is set on constraint platform, and swing on constraint platform with rotary mechanism as center;Sheave is erected on swing platform, and the rope groove of sheave is arranged along radial direction, and sheave swings with swing platform;Angle adjusting mechanism is connected with swing platform;Steel wire rope is led out from reel, passes through the hollow on rotary mechanism after the rope groove on sheave and is connected with lifting container;Detection feedback is used to obtain steel wire rope related data;Adjusting module is used to adjust the swing amplitude and frequency of swing platform according to feedback information.The application realizes the function of real-time angle adjustment, avoids the friction between sheave and steel wire, improves the stability and safety of system.

Description

Technical Field

[0001] The design of the present invention relates to the technical field of sky sheave assemblies, and in particular to an ultra-deep well winding hoisting deflection-angle adaptive sky sheave system and a working method. Background Art

[0002] As mining depths continue to increase, winding hoisting systems are becoming more suitable for deep-layer mining operations than friction hoisting systems. However, friction between the wire rope and the sheave in winding hoisting systems inevitably generates torque on the sheave, causing uneven force on the spokes and bearings at both ends of the sheave. Damage to the sheave's bearings, spokes, and bushings can seriously impact the safe operation of the hoist. The sheave also rubs against the wire rope, causing lateral vibration. Large amplitude vibrations can affect the smooth and safe operation of the wire rope, requiring frequent wire rope replacements and impacting the mine's operating efficiency and economic benefits.

[0003] At present, in the research and transformation to avoid the friction between the wire rope and the sheave rim, some people have proposed different roller and sheave arrangements, but these are special arrangements made for individual mines and cannot generally solve the problem of friction between the sheave rim and the wire rope in the winding friction system. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides an ultra-deep well winding hoisting deflection adaptive head sheave system and a working method to solve the technical problem of low tracking accuracy of the head sheave in the prior art.

[0005] The present invention provides an ultra-deep well winding hoisting deflection adaptive head sheave system, comprising: a head sheave, a swing platform, a constraint platform, a slewing mechanism, an angle adjustment mechanism, a detection feedback device, and an adjustment module;

[0006] The entire system is erected on the well tower platform; the slewing mechanism is arranged on the side close to the wellhead, with a hole in the center for the wire rope to pass through; the swing platform is arranged on the constraint platform, and swings on the constraint platform with the slewing mechanism as the center; the sheave is erected on the swing platform, and the rope groove of the sheave is arranged radially, and the sheave swings with the swing platform; the angle adjustment mechanism is connected to the swing platform; the wire rope is led out from the drum, passes through the rope groove on the sheave, and passes through the hole on the slewing mechanism to be connected to the lifting container; the detection feedback device is used to obtain the movement speed, acceleration and position of the wire rope relative to the sheave; the adjustment module is connected to the angle adjustment mechanism and the detection feedback device respectively, and the adjustment module is used to adjust the swing amplitude and frequency of the swing platform through the angle adjustment mechanism according to the information fed back by the detection feedback device.

[0007] Further, the angle adjusting mechanism comprises two hydraulic cylinders; the two hydraulic cylinders are mirror arranged on two sides of the radial direction, the bottom of the hydraulic cylinder is hinged on the wall body on the side of the constraint platform far away from the wellhead, and the top of the hydraulic cylinder is hinged with the swing platform.

[0008] Further, the angle adjusting mechanism comprises a hydraulic cylinder; the hydraulic cylinder is arranged horizontally and vertically to the radial direction, the bottom of the hydraulic cylinder is hinged on the wall body on the side of the constraint platform, and the top of the hydraulic cylinder is hinged with the swing platform; the hydraulic cylinder makes the swing platform swing through the telescopic extension.

[0009] The application also provides a working method of the super-deep well winding lifting angle self-adapting sheave system, comprising the following steps:

[0010] Step 1: obtaining the length of the steel wire rope winding one circle on the reel, the width of the reel, the distance between the steel wire rope winding-out point and the initial winding point of the reel when the reel is started, and the distance between the center line of the sheave and the initial winding point of the reel;

[0011] Step 2: obtaining the length of the steel wire rope that has been wound out;

[0012] Step 3: calculating the distance between the steel wire rope winding-out point and the initial winding point of the reel;

[0013] Step 4: calculating the deflection angle of the sheave according to the distance between the steel wire rope winding-out point and the initial winding point of the reel, the distance between the center line of the sheave and the initial winding point of the reel, and the distance between the steel wire rope winding-out point and the steel wire rope winding-in point of the sheave;

[0014] Step 5: adjusting the angle of the sheave to the deflection angle through the angle adjusting mechanism according to the deflection angle of the sheave, and repeating steps 2-5 until the current lifting operation is completed.

[0015] Further, in step 2, when the winding-out speed changes, the length of the steel wire rope that has been wound out is calculated through the following formula:

[0016]

[0017] In the formula, L is the length of the steel wire rope that has been wound out, v1 is the speed measured last time, v2 is the speed measured this time, and L1 is the length of the steel wire rope wound out when v1 is measured.

[0018] Further, in step 3, the specific method for calculating the distance between the steel wire rope winding-out point and the initial winding point of the reel is as follows:

[0019] When the steel wire rope winding-out point moves away from the initial winding point of the reel, the distance between the steel wire rope winding-out point and the initial winding point of the reel is calculated through the following formula:

[0020]

[0021] Where B is the distance between the current wire rope unwinding point and the initial winding point of the drum; B' is the distance between the wire rope unwinding point and the initial winding point of the drum when the drum is started; L is the length of the current wire rope unwinding; C is the length of one circle of wire rope wrapped around the drum; and T is the drum pitch.

[0022] When the wire rope winding point is close to the initial winding point of the drum, the distance between the current wire rope winding point and the initial winding point of the drum is calculated using the following formula:

[0023]

[0024] Where B is the distance between the current wire rope unwinding point and the initial winding point of the drum; B1 is the drum width; B' is the distance between the wire rope unwinding point and the initial winding point of the drum when the drum is started; L is the current length of the wire rope wound out; C is the length of one circle of the wire rope wrapped around the drum; and T is the drum pitch.

[0025] Furthermore, in step 4, the calculation formula for calculating the deflection angle of the sky wheel is:

[0026]

[0027] Where B is the distance between the current wire rope winding-out point and the initial winding point of the drum; B2 is the distance between the centerline of the sheave and the initial winding point of the drum; and B3 is the distance between the wire rope winding-out point and the wire rope winding-in point of the sheave.

[0028] Beneficial effects of the present invention:

[0029] The present invention uses a complete set of angle adjustment modules and a matching adjustment method to achieve the function of real-time angle adjustment of the overhead sheave according to the winding speed and position of the wire rope, thereby avoiding friction between the overhead sheave and the wire, reducing the frequency of wire rope replacement, and improving the working efficiency and economic benefits of the mine; the present invention realizes real-time monitoring and precise control of the overhead sheave movement, greatly improving the stability and safety of the lifting system. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings, which are schematic and should not be construed as limiting the present invention in any way. In the accompanying drawings:

[0031] Figure 1 is a system schematic diagram of a specific embodiment of the present invention;

[0032] Figure 2 is a schematic diagram of a container hoisted and lifted by the system of the present invention in a specific embodiment of the present invention;

[0033] Figure 3is a schematic diagram of the connection between the sky wheel, the swing platform and the constraint platform in a specific embodiment of the present invention;

[0034] Figure 4 is a schematic diagram of a restraining platform and support wheels in a specific embodiment of the present invention;

[0035] Figure 5 is a schematic diagram of a specific embodiment of the present invention in which the angle adjustment mechanism is a hydraulic cylinder;

[0036] Figure 6 is a schematic diagram of a hinge shaft when the angle adjustment mechanism is a hydraulic cylinder in a specific embodiment of the present invention;

[0037] Figure 7 is a schematic diagram of an angle adjustment mechanism comprising two hydraulic cylinders in a specific embodiment of the present invention;

[0038] Figure 8 It is a schematic diagram of the hinge shaft when the angle adjustment mechanism is two hydraulic cylinders in a specific embodiment of the present invention. DETAILED DESCRIPTION

[0039] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present invention.

[0040] The present invention will be further described below with reference to specific examples. Those skilled in the art will appreciate that these examples are intended only to illustrate the present invention and are not intended to limit the scope of the present invention, and that modifications to various equivalent forms of the present invention fall within the scope defined by the appended claims.

[0041] like Figures 1-4 The present invention provides an ultra-deep well winding hoisting deflection adaptive head sheave system, comprising: a head sheave 1, a swing platform 2, a constraint platform 3, a slewing mechanism 4, an angle adjustment mechanism 5, a detection feedback device 6, and an adjustment module 7;

[0042] The constraint platform 3 is fan-shaped and is installed on the ground or on a derrick near the well, with the center of the fan facing the wellhead. Two curved tracks 31 are located on the surface of the constraint platform 3, with the center of the fan as the center. The curvature of the curved tracks 31 is the same as that of the fan. The slewing mechanism 4 is shaft-shaped and is installed at the center of the constraint platform 3, coaxially with the center of the fan, with a hole in the center for the wire rope to pass through. The swing platform 2 includes: a platform 21, a support frame 22, and a support wheel 23. The platform is fan-shaped, with the center of the fan coaxial with the slewing mechanism 4 and rotating around the slewing mechanism 4. The support wheel 23 is installed on the bottom surface of the platform 21 and moves on the two curved tracks 31 of the constraint platform 3. There are two support frames 22, which are arranged vertically symmetrically, one end is fixed to the platform 21, and the other end is used to support the sheave 1. The sheave 1 is installed on the support frame 22 of the swing platform 2, and the rope groove of the sheave 1 is arranged along the radial direction of the platform 21, so that the sheave 1 swings with the swing platform 2.

[0043] The angle adjustment mechanism 5 is connected to the swing platform 2; Figure 5 、 6 As shown, the angle adjustment mechanism 5 includes: a hydraulic cylinder; a hinge shaft 221 is provided at the connection between the support frame 22 on one side and the platform 21; the top rod of the hydraulic cylinder is hinged to the hinge shaft 221; the bottom of the hydraulic cylinder is hinged to the wall on one side of the constraint platform 3; the hydraulic cylinder extends along the swing direction of the sheave 1; the hydraulic cylinder pushes the swing platform 2 to swing on the constraint platform 3 by telescoping. Figure 7 、 8 As shown, the angle adjustment mechanism 5 includes: two hydraulic cylinders; a hinge shaft 221 is provided at the connection between the two support frames 22 and the platform 21, the top rod of the hydraulic cylinder is hinged to the hinge shaft 221, and the bottom of the hydraulic cylinder is hinged to the wall on one side of the constraint platform 3. The hydraulic cylinder is horizontally arranged and extends along the swing direction of the vertical sheave 1; the hydraulic cylinder pushes the swing platform 2 to swing on the constraint platform 3 by telescoping.

[0044] The wire rope is drawn from the drum, passes through the rope groove in the sheave 1, and then through the hole in the slewing mechanism 4 to connect to the lifting container. The detection feedback device 6 includes various sensors, which detect the movement speed and acceleration of the wire rope and its position relative to the sheave 1. The adjustment module 7 includes a data processor 71 and a controller 72. The detection feedback device 6 is connected to the data processor 71, which determines the required swing angle of the sheave 1 based on the information fed back by the detection feedback device 6. The controller 72 is connected to the data processor 71 and the angle adjustment mechanism 5 respectively, and the controller 72 drives the angle adjustment mechanism 5 to control the swing angle of the swing platform 2.

[0045] The present invention also provides a method for operating an ultra-deep well winding hoisting deflection angle adaptive head sheave system, comprising the following steps:

[0046] Step 1: Obtain the length C of the wire rope wound around the drum, the drum width B1, the distance B' between the wire rope unwinding point and the drum initial winding point when the drum is started, and the distance B2 between the center line of the sheave and the drum initial winding point;

[0047] Step 2: Get the length L of the current wire rope. The basic formula is:

[0048] L=vt

[0049] When the rope delivery speed changes, the length of the current wire rope that has been wound out is calculated using the following formula:

[0050]

[0051] Where L is the length of the current wire rope that has been wound out; v1 is the speed measured last time, v2 is the speed measured this time, and L1 is the length of the wire rope that has been wound out when v1 is measured;

[0052] Step 3: Calculate the distance B between the current wire rope winding point and the initial winding point of the drum:

[0053] When the wire rope winding point is moving away from the initial winding point of the drum, the distance between the current wire rope winding point and the initial winding point of the drum is calculated using the following formula:

[0054]

[0055] Where B is the distance between the current wire rope unwinding point and the initial winding point of the drum; B' is the distance between the wire rope unwinding point and the initial winding point of the drum when the drum is started; L is the length of the current wire rope unwinding; C is the length of one circle of wire rope wrapped around the drum; and T is the drum pitch.

[0056] When the wire rope winding point is close to the initial winding point of the drum, the distance between the current wire rope winding point and the initial winding point of the drum is calculated using the following formula:

[0057]

[0058] Where B is the distance between the current wire rope winding point and the initial winding point of the drum; B1 is the drum width; B' is the distance between the wire rope winding point and the initial winding point of the drum when the drum is started; L is the current length of the wire rope wound; C is the length of one circle of the wire rope wrapped around the drum; T is the drum pitch;

[0059] Step 4: Calculate the deflection angle of the sheave based on the distance between the current wire rope winding point and the initial winding point of the drum, the distance B2 between the centerline of the sheave and the initial winding point of the drum, and the distance between the wire rope winding point and the wire rope winding point of the sheave. The specific formula is:

[0060] The formula is:

[0061]

[0062] Where B is the distance between the current wire rope winding point and the initial winding point of the drum; B2 is the distance between the center line of the sheave and the initial winding point of the drum; B3 is the distance between the wire rope winding point and the wire rope winding point of the sheave;

[0063] Step 5: Adjust the angle of the overhead sheave to the deflection angle through the angle adjustment mechanism according to the deflection angle of the overhead sheave, and repeat steps 2-5 until the lifting operation is completed.

[0064] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention. Such modifications and variations are all within the scope defined by the appended claims.

Claims

1. An ultra-deep well winding hoisting deflection adaptive sheave system, characterized by: include: A head wheel, a swing platform, a constraint platform, a slewing mechanism, an angle adjustment mechanism, a detection feedback device, and an adjustment module; The entire system is erected on the well tower platform; the slewing mechanism is arranged on the side close to the wellhead, with a hole in the center for the wire rope to pass through; the swing platform is arranged on the constraint platform, and swings on the constraint platform with the slewing mechanism as the center; the sheave is erected on the swing platform, and the rope groove of the sheave is arranged radially, and the sheave swings with the swing platform; the angle adjustment mechanism is connected to the swing platform; the wire rope is led out from the drum, passes through the rope groove on the sheave, and passes through the hole on the slewing mechanism to be connected to the lifting container; the detection feedback device is used to obtain the movement speed, acceleration and position of the wire rope relative to the sheave; the adjustment module is connected to the angle adjustment mechanism and the detection feedback device respectively, and the adjustment module is used to adjust the swing amplitude and frequency of the swing platform through the angle adjustment mechanism according to the information fed back by the detection feedback device.

2. The ultra-deep well winding hoisting deflection adaptive head sheave system according to claim 1, characterized in that: The angle adjustment mechanism includes: two hydraulic cylinders; the two hydraulic cylinders are mirror-imaged and arranged on both sides of the radial direction, the bottom of the hydraulic cylinder is hinged to the wall on the side of the constraint platform away from the wellhead, and the top of the hydraulic cylinder top rod is hinged to the swing platform; the hydraulic cylinder on one side pushes the swing platform to move to the same side.

3. The ultra-deep well winding hoisting deflection adaptive head sheave system according to claim 1, characterized in that: The angle adjustment mechanism includes: a hydraulic cylinder; the hydraulic cylinder is arranged horizontally and perpendicular to the radial direction, the bottom of the hydraulic cylinder is hinged to the wall on one side of the constraint platform, and the top of the hydraulic cylinder top rod is hinged to the swing platform; the hydraulic cylinder swings the swing platform by telescoping.

4. An operating method of an ultra-deep well winding hoisting deflection adaptive head sheave system, applicable to the ultra-deep well winding hoisting deflection adaptive head sheave system as claimed in any one of claims 1 to 3, characterized in that: The method comprises the following steps: Step 1: Obtain the length of the wire rope wound around the drum, the width of the drum, the distance between the wire rope winding point and the initial winding point of the drum when the drum is started, and the distance between the center line of the sheave and the initial winding point of the drum; Step 2: Get the length of the current wire rope that has been wound; Step 3: Calculate the distance between the current wire rope winding point and the initial winding point of the drum; Step 4: Calculate the deflection angle of the sheave according to the distance between the current wire rope winding-out point and the initial winding point of the drum, the distance between the center line of the sheave and the initial winding point of the drum, and the distance between the wire rope winding-out point and the wire rope winding-in point of the sheave; Step 5: Adjust the angle of the overhead sheave to the deflection angle through the angle adjustment mechanism according to the deflection angle of the overhead sheave, and repeat steps 2-5 until the lifting operation is completed.

5. The method for operating the ultra-deep well winding hoisting deflection adaptive head sheave system according to claim 4, characterized in that: In step 2, when the rope delivery speed changes, the length of the current wire rope that has been wound out is calculated using the following formula: Where L is the length of the current wire rope that has been wound out; v1 is the speed measured last time; v2 is the speed measured this time; L1 is the length of the wire rope that has been wound out when v1 is measured.

6. The method for operating the ultra-deep well winding hoisting deflection adaptive head sheave system according to claim 4, characterized in that: In step 3, the specific method for calculating the distance between the current wire rope winding point and the initial winding point of the drum is: When the wire rope winding point is moving away from the initial winding point of the drum, the distance between the current wire rope winding point and the initial winding point of the drum is calculated using the following formula: Where B is the distance between the current wire rope winding point and the initial winding point of the drum; B' is the distance between the wire rope winding point and the initial winding point of the drum when the drum is started; L is the length of the current wire rope wound; C is the length of one circle of wire rope wrapped around the drum; T is the drum pitch; When the wire rope winding point is close to the initial winding point of the drum, the distance between the current wire rope winding point and the initial winding point of the drum is calculated using the following formula: Where B is the distance between the current wire rope unwinding point and the initial winding point of the drum; B1 is the drum width; B' is the distance between the wire rope unwinding point and the initial winding point of the drum when the drum is started; L is the current length of the wire rope wound out; C is the length of one circle of the wire rope wrapped around the drum; and T is the drum pitch.

7. The method for operating the ultra-deep well winding hoisting deflection adaptive head sheave system according to any one of claims 4 to 6, characterized in that: In step 4, the calculation formula for calculating the deflection angle of the sky wheel is: Where B is the distance between the current wire rope winding-out point and the initial winding point of the drum; B2 is the distance between the centerline of the sheave and the initial winding point of the drum; and B3 is the distance between the wire rope winding-out point and the wire rope winding-in point of the sheave.

Images