Ultra-deep well winding and lifting deflection angle self-adaptive head sheave system and working method

Abstract

The invention discloses an ultra-deep well winding and lifting deflection angle self-adaption head sheave system which comprises a head sheave, a swing platform, a constraint platform, a swing mechanism, an angle adjusting mechanism, a detection feedback device and an adjusting module. The whole system is erected on a shaft tower platform; the center of the slewing mechanism is provided with a hole for the steel wire rope to penetrate; the swinging platform is arranged on the constraint platform and swings on the constraint platform by taking the slewing mechanism as a circle center; the head sheave is erected on the swing platform, a rope groove of the head sheave is arranged in the radial direction, and the head sheave swings along with the swing platform. The angle adjusting mechanism is connected with the swinging platform; a steel wire rope is led out from the winding drum, passes through a rope groove in the head sheave and then penetrates through a hole in the slewing mechanism to be connected with a hoisting container; the detection feedback device is used for acquiring steel wire rope related data; the adjusting module is used for adjusting the swing amplitude and frequency of the swing platform according to the feedback information. The function of real-time angle adjustment is achieved, friction between the head sheave and the steel wire is avoided, and the stability and safety of the system are improved.

Description

Technical Field

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

[0002] As the mining depth of mines continues to increase, winding hoisting systems are more suitable for deep mining in mines than friction hoisting systems. However, when the wire rope rubs against the sheave, the winding hoisting system will inevitably generate torque on the sheave, causing uneven force on the spokes on both sides of the sheave and the bearings at both ends of the sheave. Once the bearings, spokes and bushings of the sheave are damaged, the safe operation of the hoist will be seriously affected. The sheave will also rub against the wire rope and cause lateral vibration to the wire rope. When the amplitude is large, it will affect the smooth and safe operation of the wire rope, and the wire rope will be frequently replaced, affecting the working efficiency and economic benefits of the mine.

[0003] In the current research and transformation to avoid the friction between the wire rope and the rim of the sheave, some people have proposed different methods of arranging the drum and the sheave, but this is a special arrangement 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 angle 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 lifting deflection angle 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 whole 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 swinging 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 swinging platform, and the rope groove of the sheave is arranged radially, and the sheave swings with the swinging platform; the angle adjustment mechanism is connected to the swinging 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 respectively connected to the angle adjustment mechanism and the detection feedback device, and the adjustment module is used to adjust the swing amplitude and frequency of the swinging platform through the angle adjustment mechanism according to the information fed back by the detection feedback device.

[0007] Furthermore, the angle adjustment mechanism includes: two hydraulic cylinders; the two hydraulic cylinders are mirror-imaged 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.

[0008] Furthermore, the angle adjustment mechanism includes: a hydraulic cylinder; the hydraulic cylinder is arranged horizontally and perpendicularly 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.

[0009] The present invention also provides a working method of an ultra-deep well winding hoisting deflection angle adaptive head sheave system, comprising the following steps:

[0010] 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;

[0011] Step 2: Get the length of the current wire rope that has been wound;

[0012] Step 3: Calculate the distance between the current wire rope winding point and the initial winding point of the drum;

[0013] 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;

[0014] Step 5: According to the deflection angle of the overhead sheave, adjust the angle of the overhead sheave to the deflection angle through the angle adjustment mechanism, and repeat steps 2-5 until the lifting operation is completed.

[0015] Furthermore, in step 2, when the rope delivery speed changes, the length of the current steel wire rope that has been wound out is calculated by the following formula:

[0016]

[0017] Wherein, 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.

[0018] Furthermore, 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:

[0019] When the wire rope winding point moves 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 by the following formula:

[0020]

[0021] Wherein, 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 that has been wound out; C is the length of one circle of the 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 by the following formula:

[0023]

[0024] Wherein, 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 length of the current wire rope that has been 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] Wherein, 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 center line 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 realizes the function of real-time angle adjustment of the overhead sheave according to the winding speed and position of the wire rope through a complete set of angle adjustment modules and a matching adjustment method, 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 lifting container 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 supporting 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 in a specific embodiment of the present invention as two hydraulic cylinders;

[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] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 creative work are within the scope of protection of the present invention.

[0040] The present invention is further illustrated below in conjunction with specific embodiments. Those skilled in the art should understand that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention, and modifications to various equivalent forms of the present invention fall within the scope defined by the appended claims of this application.

[0041] like Figure 1-4 The present invention provides an ultra-deep well winding lifting deflection angle 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 set on the ground or on the derrick beside the well, with the fan center facing the wellhead. There are two arc tracks 31 on the surface with the fan center as the center of the circle, and the curvature of the arc track 31 is the same as the curvature of the fan. The slewing mechanism 4 is shaft-shaped, set at the fan center of the constraint platform 3, coaxially arranged with the fan center, and has 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, the fan center is coaxial with the slewing mechanism 4, and rotates with the slewing mechanism 4 as the center of the circle; the support wheel 23 is set on the bottom surface of the platform 21 and moves on the two arc tracks 31 of the constraint platform 3; there are two support frames 22, which are vertically symmetrically arranged, one end is fixed on the platform 21, and the other end is used to support the sheave 1; the sheave 1 is set on the support frame 22 of the swing platform 2, and the rope groove of the sheave 1 is set along the radial direction of the platform 21, and 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, and the hydraulic cylinder extends along the swing direction of the sky wheel 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, 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 out from the drum, passes through the rope groove on the sky wheel 1, and then passes through the hole on the slewing mechanism 4 to connect to the lifting container. The detection feedback device 6 includes: various sensors, and the detection feedback device 6 obtains the movement speed, acceleration and position of the wire rope relative to the sky wheel 1 through various sensors; the adjustment module 7 includes: a data processor 71 and a controller 72, and the detection feedback device 6 is connected to the data processor 71, and the data processor 71 obtains the angle at which the sky wheel 1 needs to swing according to the information fed back by the detection feedback device 6; the controller 72 is respectively connected to the data processor 71 and the angle adjustment mechanism 5, 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 working method of 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 winding point and the initial winding point of the drum when the drum is started, and the distance B2 between the center line of the sheave and the initial winding point of the drum;

[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 moves 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 by the following formula:

[0054]

[0055] Wherein, 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 that has been wound out; C is the length of one circle of the 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 by the following formula:

[0057]

[0058] Wherein, 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 length of the current wire rope that has been wound out; 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 according to the distance between the current wire rope winding-out point and the initial winding point of the drum, the distance B2 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. The specific formula is:

[0060] The formula is:

[0061]

[0062] Wherein, 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: According to the deflection angle of the overhead sheave, adjust the angle of the overhead sheave to the deflection angle through the angle adjustment mechanism, and repeat steps 2-5 until the lifting operation is completed.

[0064] Although the embodiments of the present invention have been described in conjunction with 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, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. An ultra-deep well winding hoisting deflection angle adaptive head sheave system, characterized in that: include: A head wheel, a swing platform, a restraining platform, a slewing mechanism, an angle adjustment mechanism, a detection feedback device and an adjustment module; The whole 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 swinging 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 swinging platform, and the rope groove of the sheave is arranged radially, and the sheave swings with the swinging platform; the angle adjustment mechanism is connected to the swinging 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 respectively connected to the angle adjustment mechanism and the detection feedback device, and the adjustment module is used to adjust the swing amplitude and frequency of the swinging 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 angle 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 on the wall 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 angle adaptive head sheave system according to claim 1, characterized in that: The angle adjustment mechanism comprises: a hydraulic cylinder; the hydraulic cylinder is arranged horizontally and perpendicularly to the radial direction, the bottom of the hydraulic cylinder is hinged on 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. A method for operating an ultra-deep well winding and lifting deflection angle adaptive head sheave system, applicable to the ultra-deep well winding and lifting deflection angle 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: According to the deflection angle of the overhead sheave, adjust the angle of the overhead sheave to the deflection angle through the angle adjustment mechanism, and repeat steps 2-5 until the lifting operation is completed.

5. The working method of the ultra-deep well winding hoisting deflection angle adaptive head sheave system according to claim 4 is 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 by the following formula: Wherein, 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 working method of the ultra-deep well winding hoisting deflection angle 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 moves 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 by the following formula: Wherein, 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 that has been wound out; C is the length of one circle of the wire rope wrapped around the drum; T is the roll 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 by the following formula: Wherein, 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 length of the current wire rope that has been 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 working method of the ultra-deep well winding hoisting deflection angle 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: Wherein, 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 center line 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.

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