Mine hoist and control method to reduce rope wear

Abstract

The present application belongs to the technical field of mine hoist, and provides a mine hoist and control method for reducing rope wear, comprising: a lifting component, including a main machine assembly and a guide wheel assembly, the guide wheel assembly provides a guide and limiting action for the main machine assembly to be retracted and extended; through the setting and cooperative use of the lifting component and the load carrying component, the synergistic design of the lifting component and the load carrying component effectively reduces the rope wear. The main machine assembly in the lifting component adopts double-row retractable and extendable main machine, and the force of the balanced lifting cable is symmetrically arranged to avoid excessive friction at a single point. The load carrying component is adaptively configured according to the tunnel environment: for inclined roads, the first cage assembly adjusts the inclination angle of the first cage through the base to make part of the gravity dispersed to the limiting slide and the pulley, thereby reducing the direct tension of the lifting cable; for vertical roads, the second cage assembly connects the cable in an S-shaped arrangement through multiple limiting rollers in the lifting piece to disperse the cable stress and reduce local wear.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of mine hoist, and particularly relates to a mine hoist capable of reducing rope wear and a control method. BACKGROUND

[0002] The mine hoist is a large and complex heavy machinery, and is mainly used for realizing ascending and descending movements along a shaft in a vertical shaft or an inclined shaft. It is a key channel connecting underground and ground, and is known as the "lifeline" of a mine.

[0003] In a long-term use state, the mine hoist has a large load, the rope friction is relatively serious, and the wear speed is also fast. This not only accelerates the replacement frequency of the rope, but also increases the risk coefficient of the hoist. In order to avoid the above situation, the present application provides a mine hoist capable of reducing rope wear and a control method. SUMMARY

[0004] The application provides a mine hoist capable of reducing rope wear and a control method, and aims to solve the problem that in a long-term use state, the mine hoist has a large load, the rope friction is relatively serious, and the wear speed is also fast. This not only accelerates the replacement frequency of the rope, but also increases the risk coefficient of the hoist.

[0005] The application is implemented as follows. A mine hoist capable of reducing rope wear comprises:

[0006] The lifting component comprises a main machine assembly and a guide wheel assembly, and the guide wheel assembly provides a guide limiting action for the main machine assembly to be retracted and extended;

[0007] The load carrying component comprises a first lifting cage assembly and a second lifting cage assembly, and the bottom of each of the first lifting cage assembly and the second lifting cage assembly is fixedly connected with a buffer bottom pad. The first lifting cage assembly is arranged obliquely, and the second lifting cage assembly is arranged vertically.

[0008] The main machine assembly comprises a main machine seat, the inner wall of the main machine seat is fixedly connected with a winding motor, the output shaft of the winding motor is fixedly connected with a winding drum through a shaft coupling, and the winding drum is arranged in the main machine seat.

[0009] The winding motor and the winding drum are both two and are symmetrically arranged, and the outer wall of the winding drum is fixedly connected with a lifting cable.

[0010] The guide wheel assembly comprises a movable guide wheel and a second support base, and the top of the second support base is provided with a fixed guide wheel.

[0011] The top of the second support base is fixedly connected with a plurality of threaded lifting cylinders, and the top of each threaded lifting cylinder is fixedly connected with the bottom of the fixed guide wheel.

[0012] The threaded lifting cylinder comprises two screw rods and a screw cylinder, and the two screw rods are threadedly connected through the screw cylinder respectively;

[0013] The movable guide wheel piece comprises a guide limiting seat and a first supporting base, the inner wall of the guide limiting seat is fixedly connected with two connecting springs in a symmetrical manner, and the one end of the connecting spring is fixedly connected with a protective snap ring;

[0014] The top of the first supporting base is connected with a movable guide wheel;

[0015] The connecting position between the movable guide wheel and the fixed guide wheel and the pull cable is embedded with a stress sensor.

[0016] The first lifting cage assembly comprises a regulating base, the outer wall of the regulating base is slidingly connected with a first cage, the upper side of the first cage is fixedly connected with a top buffer protection piece, the upper end outer wall of the first cage is fixedly connected with a pull rope ring, and the one end of the pull cable is fixedly connected with the outer wall of the pull rope ring.

[0017] The regulating base comprises a grounding base, the bottom of the grounding base is provided with a mounting hole, the one end of the grounding base is hingedly connected with a supporting plate, and the outer wall of the supporting plate is fixedly connected with two limiting sliding strips;

[0018] A plurality of adjusting rod pieces are arranged between the grounding base and the supporting plate;

[0019] The top buffer protection piece comprises a mounting plate fixedly connected to the outer wall of the first cage, the outer wall of the mounting plate is fixedly connected with a buffer spring, and the one end of the buffer spring is fixedly connected with an arc-shaped protection plate.

[0020] Preferably, the second lifting cage assembly comprises a sliding rail piece and a lifting piece, and the outer wall of the sliding rail piece is fixedly connected with a second cage.

[0021] Preferably, the lifting piece comprises a telescopic rod piece, the one end of the telescopic rod piece is connected with a limiting roller, the number of the limiting rollers is multiple, the multiple limiting rollers are vertically equidistantly arranged, the outer wall of the limiting roller is attached with a connecting cable, the one end of the connecting cable is fixedly connected with the outer wall of the second cage, the one end of the connecting cable away from the second cage is fixedly connected with the one end of the pull cable, and the connecting cable passes through the multiple limiting rollers in an S shape.

[0022] The sliding rail piece comprises a sliding rail fixedly connected to the second cage, the outer wall of the sliding rail is slidingly connected with a fixed slide way, a plurality of pulleys are arranged on the outer wall of the sliding rail, and the outer wall of the pulley is rollingly connected with the inner wall of the fixed slide way.

[0023] A mine hoist control method for reducing rope wear comprises the following steps: S1, according to the need, the main machine assembly and the guide wheel assembly are fixedly installed;

[0024] S2, select to install the first and second lifting cage assemblies according to the environment of the shaft;

[0025] S3, control the main machine assembly to lift or release the load component.

[0026] Preferably, the S2 includes S2-1 and S2-2;

[0027] S2-1, when the mine shaft is a slope, select to install the first lifting cage assembly, and when installing, first fix it on the slope at the bottom of the shaft, and adjust the angle between the grounding base and the supporting plate according to the angle between the upper end of the slope at the bottom of the shaft and the guide wheel assembly, so that the lifting cable can be connected to the first lifting cage assembly through the guide wheel assembly smoothly.

[0028] S2-2, when the mine shaft is a vertical shaft, select to install the second lifting cage assembly, and when installing, first fix the telescopic rod of the lifting component on the inner wall of the shaft, and fix the connecting cable and the lifting cable.

[0029] Preferably, S3 includes S3-1, S3-2 and S3-3:

[0030] S3-1: control the main machine assembly: adopt an S-shaped speed curve, and realize it through sine, polynomial and other algorithms: this curve makes the acceleration change smoothly without mutation; when starting: the acceleration increases from 0 to the maximum value smoothly, and then decreases to 0 smoothly to enter the uniform speed; when stopping: the deceleration increases from 0 to the maximum value smoothly, and then decreases to 0 smoothly.

[0031] S3-2, the control system monitors the load of the lifting container in real time through the motor torque or direct weighing and its position in the shaft: heavy load up / light load down: adopt relatively conservative speed and acceleration parameters, because the tension of the steel wire rope is the largest at this time; light load up / heavy load down: higher running parameters can be adopted, but special attention should be paid to the braking control when lowering; through the wellhead and the bottom area: automatically reduce the running speed to reduce the impact and wear of the steel wire rope at the bending point, such as the head sheave.

[0032] S3-3, install stress sensors on the movable guide wheel and the fixed guide wheel to indirectly measure the tension of the lifting cable, and compare it with the preset ideal tension curve; if the tension is abnormally high, the system will immediately take safety measures such as reducing the speed, emergency smooth parking, to avoid "slip" or "broken rope" accidents, so as to protect the steel wire rope.

[0033] Compared with the prior art, the present application has the following beneficial effects:

[0034] The cooperation of the lifting component and the load component effectively reduces the rope wear through the arrangement and cooperation of the lifting component and the load component. The main machine assembly in the lifting component adopts double-row winding and unwinding lifting main machine, which balances the stress of the lifting cable through symmetric arrangement, avoiding excessive friction at a single point. The load component is adaptively configured according to the tunnel environment: for inclined roads, the first cage assembly adjusts the inclination angle of the first cage through the base, so that part of the gravity is dispersed to the limiting slide and the pulley, reducing the direct tension of the lifting cable; for vertical roads, the second cage assembly connects the cable through the S-shaped arrangement of the multiple limiting rollers in the lifting component, disperses the cable stress, and reduces local wear. In addition, the buffer bottom pad and the top buffer protection piece provide impact buffering and reduce dynamic wear during operation.

[0035] Through the arrangement of the guide wheel assembly, the guide wheel assembly significantly reduces the rope wear through structure optimization. The installation position of the fixed guide wheel is consistent with the cable connection direction of the cage assembly in the tunnel, and the height is adjusted through the threaded lifting cylinder, ensuring smooth transition of the angle between the lifting cable and the winding drum, reducing the bending stress. The protection snap ring in the movable guide wheel assembly is always attached to the short shaft of the movable guide wheel through the connecting spring, providing stable limiting and preventing friction caused by cable jumping or deviation. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 is the front view of the present application;

[0037] Figure 2 is a structural schematic view of the main machine assembly of the present application;

[0038] Figure 3 is a structural schematic view of the first cage assembly of the present application;

[0039] Figure 4 is a structural schematic view of the control base of the present application;

[0040] Figure 5 is a structural schematic view of the top buffer protection piece of the present application;

[0041] Figure 6 is a structural schematic view of the second cage assembly of the present application;

[0042] Figure 7 is a structural schematic view of the lifting component of the present application;

[0043] Figure 8 is a structural schematic view of the sliding rail component of the present application;

[0044] Figure 9 is a structural schematic view of the guide wheel assembly of the present application.

[0045] In the figure: 1, buffer bottom pad; 2, main machine assembly; 201, main machine base; 202, winding drum; 203, winding motor; 204, lifting cable; 3, first lifting cage assembly; 301, regulating base; 3011, grounding base; 3012, adjusting rod; 3013, supporting plate; 3014, limiting sliding bar; 302, first cage; 303, top buffer protection; 3031, mounting plate; 3032, buffer spring; 3033, arc-shaped protection plate; 4, second lifting cage assembly; 401, second cage; 402, sliding rail; 4021, sliding rail; 4022, fixed slide; 4023, pulley; 403, lifting piece; 4031, connecting cable; 4032, telescopic rod; 4033, limiting roller; 5, guide wheel assembly; 501, movable guide wheel; 5011, guide limiting seat; 5012, protection snap ring; 5013, connecting spring; 5014, movable guide wheel; 5015, first supporting base; 502, fixed guide wheel; 503, second supporting base. DETAILED DESCRIPTION

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application; the present application will be described with reference to the drawings and terminology used by a person skilled in the art. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. The words "comprising," "including," "having," and the like, as used in the specification are intended to be construed as being inclusive (and therefore open-ended) rather than exclusive and (therefore, closed-ended). The terms "first," "second," and the like, as used in the description, are used for distinguishing between similar objects and do not necessarily indicate an order or sequence.

[0047] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily all directed to the same embodiment, or to a common embodiment. It is expressly understood that any of the embodiments described herein can be incorporated into any other embodiment even though it is not mentioned expressly.

[0048] The embodiment of the application provides a mine hoist capable of reducing rope wear, comprising:

[0049] The lifting component comprises the main machine assembly 2 and the guide wheel assembly 5, and the guide wheel assembly 5 provides a guide limiting action for the main machine assembly 2 to be retracted and extended;

[0050] The object-carrying component comprises the first lifting cage assembly 3 and the second lifting cage assembly 4, and the bottom of each of the first lifting cage assembly 3 and the second lifting cage assembly 4 is fixedly connected with the buffer bottom pad 1; wherein the first lifting cage assembly 3 is arranged obliquely, and the second lifting cage assembly 4 is arranged vertically.

[0051] The host assembly 2 comprises a host seat 201, the inner wall of the host seat 201 is fixedly connected with a winding motor 203, the output shaft of the winding motor 203 is fixedly connected with a winding drum 202 through a shaft coupling;

[0052] Among them, the winding motor 203 and the winding drum 202 are both two and symmetrically arranged, the outer wall of the winding drum 202 is fixedly connected with a pull cable 204.

[0053] The first lifting cage assembly 3 comprises a control base 301, the outer wall of the control base 301 is slidingly connected with a first cage 302, the upper side of the first cage 302 is fixedly connected with a top buffer protection piece 303, the upper end outer wall of the first cage 302 is fixedly connected with a pull rope ring, one end of the pull cable 204 is fixedly connected with the outer wall of the pull rope ring.

[0054] The control base 301 comprises a grounding base 3011, the bottom of the grounding base 3011 is provided with a mounting hole, one end of the grounding base 3011 is hingedly connected with a supporting plate 3013, the outer wall of the supporting plate 3013 is fixedly connected with two limiting slide bars 3014;

[0055] A plurality of adjusting rod pieces 3012 are arranged between the grounding base 3011 and the supporting plate 3013;

[0056] The top buffer protection piece 303 comprises a mounting plate 3031 fixedly connected to the outer wall of the first cage 302, the outer wall of the mounting plate 3031 is fixedly connected with a buffer spring 3032, one end of the buffer spring 3032 is fixedly connected with an arc-shaped protection plate 3033.

[0057] Preferably, the second lifting cage assembly 4 comprises a sliding rail piece 402 and a lifting piece 403, the outer wall of the sliding rail piece 402 is fixedly connected with a second cage 401.

[0058] Preferably, the lifting piece 403 comprises a telescopic rod piece 4032, one end of the telescopic rod piece 4032 is connected with a limiting roller 4033, the number of the limiting roller 4033 is multiple, and the multiple limiting rollers 4033 are vertically equidistantly arranged, the outer wall of the limiting roller 4033 is attached with a connecting cable 4031, one end of the connecting cable 4031 is fixedly connected with the outer wall of the second cage 401, the end of the connecting cable 4031 away from the second cage 401 is fixedly connected with one end of the pull cable 204, the connecting cable 4031 passes through multiple limiting rollers 4033 in an S shape;

[0059] The sliding rail piece 402 comprises a sliding rail 4021 fixedly connected to the second cage 401, the outer wall of the sliding rail 4021 is slidingly connected with a fixed slide 4022, a plurality of pulleys 4023 are arranged on the outer wall of the sliding rail 4021, and the outer wall of the pulley 4023 is rollingly connected with the inner wall of the fixed slide 4022.

[0060] The outer wall of the winding drum 202 is rotationally connected with the inner wall of the host seat 201 in the host assembly 2.

[0061] The first cage 302 and the limiting slide bar 3014 are connected through a roller sliding connection.

[0062] Specifically, the adjusting rod 3012 includes a screw cylinder fixedly connected to the grounding base 3011, a support rod threadedly connected to the inner wall of the screw cylinder, a support ball fixedly connected to the top of the support rod, and the outer wall of the support ball is attached to the outer wall of the supporting plate 3013. The adjusting base 301 is used to adjust the position of the first cage 302 in the inclined mine tunnel. By adjusting the angle between the grounding base 3011 and the supporting plate 3013 in the adjusting base 301, the sliding lifting angle of the first cage 302 can be adjusted according to the actual situation. By inclining the sliding lifting of the first cage 302, the weight of the material carried in the first cage 302 is dispersed, part of the gravity is dispersed to the upper limiting slide bar 3014 along the pulley at the bottom of the first cage 302, the tension of the lifting cable 204 connected to the pull rope ring is reduced, and the wear of the lifting cable 204 is reduced.

[0063] Preferably, a damping member is connected between the mounting plate 3031 and the arc-shaped protective plate 3033, and the damping member is arranged inside the buffer spring 3032. The top buffer protection member 303 can effectively resist the falling objects and collapse in the inclined slide.

[0064] Further, the telescopic rod 4032 is a threaded telescopic rod, and a plurality of limiting rollers 4033 arranged vertically are adjusted in position by the telescopic rod 4032, so that the length of the telescopic rod 4032 in the middle is greater than the length of the telescopic rod 4032 on both sides. The telescopic rod 4032 is fixedly connected to the outer wall of the vertical mine tunnel.

[0065] The position of the limiting roller 4033 is adjusted by the telescopic rod 4032, so that the plurality of limiting rollers 4033 form an S-shaped rope passing position, thereby achieving the limiting protection effect of the connecting cable 4031.

[0066] It should be noted that the fixed slide 4022 is fixedly connected to the outer wall of the vertical mine tunnel.

[0067] It should be noted that, due to the large load of the existing mine hoist in the long-term use state, the friction of the lifting rope is serious, and the wear speed is also fast, which not only accelerates the replacement frequency of the lifting rope, but also increases the risk coefficient of the hoist.

[0068] Specifically, in the present embodiment: S1: install the lifting component:

[0069] First, the host assembly 2 and the guide wheel assembly 5 are fixed at the installation position of the mine hoist. The host assembly 2 includes a host seat 201, a winding motor 203 and a winding drum 202, wherein the winding drum 202 is driven by the winding motor 203 and is used for winding and unwinding the pull cable 204. The guide wheel assembly 5 includes a movable guide wheel 501 and a fixed guide wheel 502, which are installed through a second support base 503. The position of the fixed guide wheel 502 needs to be aligned with the cable connection direction of the cage assembly in the tunnel, and the movable guide wheel 501 is used to transition the angle between the pull cable 204 and the winding drum 202, reducing the bending wear. During installation, the height of the fixed guide wheel 502 is adjusted through the threaded lifting cylinder to ensure smooth cable path;

[0070] Selecting the installation of the load-carrying component: according to the type of the mine tunnel, the corresponding cage assembly is selected for installation: for inclined tunnel installation: select the first cage assembly 3. First, fix the control base 301 on the slope at the bottom of the tunnel, adjust the inclination angle of the supporting plate 3013 through the adjusting rod 3012, so that the sliding angle of the first cage 302 matches the slope of the tunnel. The pull cable 204 is connected to the first cage 302 through the guide wheel assembly 5. The top buffer protection 303 is installed on the upper side of the first cage 302, which is used to buffer the impact of falling objects in the inclined tunnel; for vertical tunnel installation: select the second cage assembly 4. The fixed slide 4022 of the slide rail 402 is installed on the inner wall of the vertical tunnel, and the second cage 401 slides on the fixed slide 4022 through the slide rail 4021 and the pulley 4023. The telescopic rod 4032 of the lifting component 403 is installed on the inner wall of the tunnel, and the position of the limiting roller 4033 is adjusted so that the connecting cable 4031 passes through multiple limiting rollers 4033 in an S shape, and then is connected to the pull cable 204 to realize stress dispersion;

[0071] Controlling the operation of the hoist: starting the host assembly 2 to operate the lifting or lowering operation, the control process includes:

[0072] Speed control: S-shaped speed curve is adopted to make the acceleration change smoothly. When starting, the acceleration gradually increases from 0 to the maximum value and then decreases to 0 to enter the uniform speed running; when stopping, the deceleration is handled similarly to avoid sudden impact on the hoisting rope; load and position monitoring: real-time monitoring of the load of the lifting container through motor torque or load cell and position. When lifting heavy load or lowering light load, conservative speed parameters are adopted to reduce cable tension; when lifting light load or lowering heavy load, attention should be paid to brake control. At the wellhead and well bottom area, the speed is automatically reduced to reduce the bending wear of the cable at the guide wheel; tension monitoring and safety response: the tension of the pull cable 204 is monitored through the stress sensors on the movable guide wheel 5014 and the fixed guide wheel 502. If abnormal tension is detected, such as cage jamming, the system will immediately reduce the speed or stop smoothly in an emergency to prevent slipping or rope breaking accidents and protect the hoisting rope.

[0073] In this embodiment, the coordinated design of the lifting and carrying components effectively reduces the wear of the hoisting ropes. The main unit 2 in the lifting component employs a double-row lifting host, symmetrically balancing the force on the lifting cable 204 and avoiding excessive friction at a single point. The carrying component is adaptively configured according to the tunnel environment: for inclined tunnels, the first lifting cage assembly 3 adjusts the tilt angle of the first cage 302 by adjusting the base 301, distributing some of the gravity to the limiting slide bar 3014 and pulleys, reducing the direct tension on the lifting cable 204; for vertical tunnels, the second lifting cage assembly 4 connects the cable 4031 in an S-shape using multiple limiting rollers 4033 in the lifting member 403, dispersing cable stress and reducing localized wear. Furthermore, the buffer bottom pad 1 and the top buffer protection member 303 provide impact cushioning, reducing dynamic wear during operation. Combined with S-shaped speed curve control, smooth acceleration is ensured, further reducing fatigue wear on the hoisting ropes. This integrated approach not only extends the life of the hoisting rope and reduces the frequency of replacement, but also improves the operational safety and efficiency of the hoist, solving the problems of rapid wear and high risk caused by heavy loads in the background technology.

[0074] In a further preferred embodiment of the present invention, the guide wheel assembly 5 includes a movable guide wheel 501 and a second support base 503, and a fixed guide wheel 502 is provided on the top of the second support base 503;

[0075] The top of the second support base 503 is fixedly connected to multiple threaded lifting cylinders, and the top of the threaded lifting cylinders is fixedly connected to the bottom of the fixed guide wheel 502.

[0076] The threaded lifting cylinder includes two screws and a screw cylinder, and the two screws are respectively connected to the screw cylinder by threads;

[0077] The movable guide wheel component 501 includes a guide limit seat 5011 and a first support base 5015. Two connecting springs 5013 are symmetrically fixedly connected to the inner wall of the guide limit seat 5011, and a protective retaining ring 5012 is fixedly connected to one end of the connecting spring 5013.

[0078] The top of the first support base 5015 is connected to a movable guide wheel 5014;

[0079] Stress sensors are embedded at the connection points between the movable guide wheel 5014 and the fixed guide wheel 502 and the lifting cable 204;

[0080] Among them, the protective retaining ring 5012 is a 1 / 3 circle retaining ring, the bottom of the movable guide wheel 5014 is fixedly connected to a short shaft, the outer wall of the short shaft is rotatably connected to the inner wall of the first support base 5015, the inner wall of the first support base 5015 is embedded with a bearing and is movably connected to the outer wall of the short shaft through the bearing, and the protective retaining ring 5012 is snapped into the outer wall of the short shaft, so as to always fit and limit the outside of the short shaft.

[0081] The installation position of the fixed guide wheel 502 is kept as consistent as possible with the cable connection direction of the first lifting cage assembly 3 or the second lifting cage assembly 4 in the tunnel. The movable guide wheel 501 is used to support the transition of the angle between the lifting cable 204 and the winding drum 202 at the position of the fixed guide wheel 502, thereby reducing the bending wear on the winding drum 202.

[0082] In this embodiment, the guide wheel assembly 5 significantly reduces rope wear through structural optimization. The fixed guide wheel 502 is installed in the same direction as the cable connection of the hoisting cage assembly in the tunnel, and its height is adjusted by a threaded lifting cylinder to ensure a smooth transition of the angle between the lifting cable 204 and the winding drum 202, reducing bending stress. The protective retaining ring 5012 in the movable guide wheel 501 is always in contact with the short shaft of the movable guide wheel 5014 through a connecting spring 5013, providing stable limiting and preventing friction caused by cable jumping or deviation. At the same time, stress sensors installed on the movable guide wheel 5014 and the fixed guide wheel 502 monitor the cable tension in real time, compare it with a preset curve, promptly detect abnormalities, and adjust operating parameters to avoid overload wear. This design of the guide wheel assembly not only disperses the stress at the bending point of the cable, but also reduces impact and friction through dynamic monitoring and adjustment, thereby extending the service life of the hoisting rope, reducing maintenance costs and safety risks, and solving the problem of rapid wear of hoisting ropes due to long-term friction in the prior art.

[0083] In a further preferred embodiment of the present invention, a mine hoist control method for reducing rope wear includes the following steps: S1, fixing and installing the main unit assembly 2 and the guide wheel assembly 5 as needed;

[0084] S2. Select and install the first lifting cage assembly 3 and the second lifting cage assembly 4 according to the environment of the tunnel;

[0085] S3. Control the main unit 2 to lift or retract the load components.

[0086] S2 includes S2-1 and S2-2;

[0087] S2-1 When the mine hoisting tunnel is an inclined tunnel, select to install the first hoisting cage assembly 3. During installation, first, fix the control base 301 on the bottom slope of the tunnel, and adjust the angle between the grounding base 3011 and the support plate 3013 according to the angle between the upper end of the bottom slope of the tunnel and the guide wheel assembly 5, so that the hoisting cable 204 can be smoothly connected to the first hoisting cage assembly 3 through the guide wheel assembly 5.

[0088] S2-2. When the mine hoisting tunnel is vertical, select to install the second hoisting cage assembly 4. During installation, first, fix the telescopic rod 4032 of the hoisting component 403 to the inner wall of the tunnel, and fix the connecting cable 4031 to the lifting cable 204.

[0089] S3 includes S3-1, S3-2, and S3-3:

[0090] S3-1: Control host component 2: Adopts an S-shaped velocity curve, implemented through algorithms such as sine and polynomial: This curve makes the acceleration change smoothly without abrupt changes; At startup: the acceleration smoothly increases from 0 to the maximum value, then smoothly decreases to 0, entering a constant speed; At stop: the deceleration smoothly increases from 0 to the maximum value, then smoothly decreases to 0.

[0091] S3-2. The control system monitors the load on the hoisting container in real time, using motor torque or direct weighing and its position in the shaft: For heavy-load hoisting / light-load descent: relatively conservative speed and acceleration parameters are used, as the wire rope tension is greatest at this time; for light-load hoisting / heavy-load descent: slightly higher operating parameters can be used, but special attention must be paid to braking control during descent. When passing through the wellhead and bottom areas: the operating speed is automatically reduced to minimize impact and wear on the wire rope at bending points, such as the sheave.

[0092] S3-3. Stress sensors are installed on the movable guide wheel 5014 and the fixed guide wheel 502 to indirectly measure the tension of the lifting cable 204 and compare it with the preset ideal tension curve. If an abnormal increase in tension is detected, the system will immediately take safety measures, such as reducing speed or emergency smooth stop, to avoid "slippage" or "rope breakage" accidents, thereby protecting the wire rope.

[0093] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0094] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units described above may be implemented in other ways in practice. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0095] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0096] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of the present invention according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of the present invention. These technical solutions also fall within the scope of protection of the present invention.

Claims

1. A mine hoist that reduces wear on hoisting ropes, characterized in that, include: The lifting component includes a main unit assembly (2) and a guide wheel assembly (5), wherein the guide wheel assembly (5) provides a guiding and limiting function for the retraction and extension of the main unit assembly (2); The loading component includes a first lifting cage assembly (3) and a second lifting cage assembly (4), and a buffer pad (1) is fixedly connected to the bottom of both the first lifting cage assembly (3) and the second lifting cage assembly (4); wherein the first lifting cage assembly (3) is inclined and the second lifting cage assembly (4) is vertical. The guide wheel assembly (5) includes a movable guide wheel (501) and a second support base (503), and a fixed guide wheel (502) is provided on the top of the second support base (503). The top of the second support base (503) is fixedly connected to a plurality of threaded lifting cylinders, the top of which is fixedly connected to the bottom of the fixed guide wheel (502); The threaded lifting cylinder includes two screws and a screw cylinder, and the two screws are respectively connected by the screw cylinder through threads; The movable guide wheel component (501) includes a guide limiting seat (5011) and a first support base (5015). Two connecting springs (5013) are symmetrically fixedly connected to the inner wall of the guide limiting seat (5011), and a protective retaining ring (5012) is fixedly connected to one end of the connecting spring (5013). The top of the first support base (5015) is connected to a movable guide wheel (5014). Stress sensors are embedded at the connection points between the movable guide wheel (5014) and the fixed guide wheel (502) and the lifting cable (204); The protective retaining ring (5012) is a 1 / 3 circle retaining ring. The bottom of the movable guide wheel (5014) is fixedly connected to a short shaft. The outer wall of the short shaft is rotatably connected to the inner wall of the first support base (5015). The inner wall of the first support base (5015) is embedded with a bearing and is movably connected to the outer wall of the short shaft through the bearing. The protective retaining ring (5012) is snapped onto the outer wall of the short shaft, which provides a constant fit and limiting effect on the outside of the short shaft.

2. A mine hoist for reducing rope wear as described in claim 1, characterized in that, The main unit (2) includes a main unit base (201), and a winding motor (203) is fixedly connected to the inner wall of the main unit base (201). The output shaft of the winding motor (203) is fixedly connected to a winding drum (202) through a coupling. There are two winding motors (203) and two winding drums (202) arranged symmetrically. The outer wall of the winding drum (202) is fixedly connected with a lifting cable (204).

3. A mine hoist for reducing rope wear as described in claim 1, characterized in that, The first lifting cage assembly (3) includes an adjustment base (301), the outer wall of which is slidably connected to a first cage (302), the upper side of which is fixedly connected to a top buffer protection component (303), the upper outer wall of which is fixedly connected to a pull rope ring, and one end of the lifting cable (204) is fixedly connected to the outer wall of the pull rope ring.

4. A mine hoist for reducing rope wear as described in claim 3, characterized in that, The control base (301) includes a grounding base (3011), the bottom of which is provided with an installation hole, and a support plate (3013) is hinged to one end of the grounding base (3011). Two limiting slide bars (3014) are fixedly connected to the outer wall of the support plate (3013). Several adjusting rods (3012) are provided between the grounding base (3011) and the support plate (3013). The top buffer protection component (303) includes a mounting plate (3031) fixedly connected to the outer wall of the first cage (302), a buffer spring (3032) fixedly connected to the outer wall of the mounting plate (3031), and an arc-shaped protection plate (3033) fixedly connected to one end of the buffer spring (3032).

5. A mine hoist for reducing rope wear as described in claim 1, characterized in that, The second lifting cage assembly (4) includes a slide rail (402) and a lifting member (403), and the outer wall of the slide rail (402) is fixedly connected to the second cage (401).

6. A mine hoist for reducing rope wear as described in claim 5, characterized in that, The lifting component (403) includes a telescopic rod (4032), one end of which is connected to a limiting roller (4033). There are multiple limiting rollers (4033), and the multiple limiting rollers (4033) are arranged vertically at equal intervals. A connecting cable (4031) is attached to the outer wall of the limiting roller (4033). One end of the connecting cable (4031) is fixedly connected to the outer wall of the second cage (401). The end of the connecting cable (4031) away from the second cage (401) is fixedly connected to one end of the lifting cable (204). The connecting cable (4031) passes through the multiple limiting rollers (4033) in an S-shape. The slide rail component (402) includes a slide rail (4021) fixedly connected to the second cage (401). The outer wall of the slide rail (4021) is slidably connected to a fixed slide rail (4022). The outer wall of the slide rail (4021) is provided with several pulleys (4023). The outer wall of the pulleys (4023) is rotatably connected to the inner wall of the fixed slide rail (4022).

7. A control method for reducing rope wear in a mine hoist as described in any one of claims 1-6, characterized in that, Includes the following steps: S1. Securely install the main unit assembly (2) and the guide wheel assembly (5) as needed; S2. Select and install the first lifting cage assembly (3) and the second lifting cage assembly (4) according to the environment of the tunnel; S3. Control the main unit (2) to lift or retract the load components.

8. The control method for reducing rope wear in a mine hoist as described in claim 7, characterized in that, S2 includes S2-1 and S2-2; S2-1 When the mine hoisting tunnel is an inclined tunnel, select to install the first hoisting cage assembly (3). During installation, first, fix the control base (301) on the bottom slope of the tunnel, and adjust the angle between the grounding base (3011) and the support plate (3013) according to the angle between the upper end of the bottom slope of the tunnel and the guide wheel assembly (5), so that the hoisting cable (204) can be smoothly connected to the first hoisting cage assembly (3) through the guide wheel assembly (5); S2-2. When the mine hoisting tunnel is a vertical tunnel, select to install the second hoisting cage assembly (4). During installation, first, fix the telescopic rod (4032) of the hoisting component (403) to the inner wall of the tunnel, and fix the connecting cable (4031) to the lifting cable (204).

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